Analyze Diet
Proceedings of the National Academy of Sciences of the United States of America2006; 103(10); 3722-3727; doi: 10.1073/pnas.0600287103

Mucosal and systemic adjuvant activity of alphavirus replicon particles.

Abstract: Vaccination represents the most effective control measure in the fight against infectious diseases. Local mucosal immune responses are critical for protection from, and resolution of, infection by numerous mucosal pathogens. Antigen processing across mucosal surfaces is the natural route by which mucosal immunity is generated, as peripheral antigen delivery typically fails to induce mucosal immune responses. However, we demonstrate in this article that mucosal immune responses are evident at multiple mucosal surfaces after parenteral delivery of Venezuelan equine encephalitis virus replicon particles (VRP). Moreover, coinoculation of null VRP (not expressing any transgene) with inactivated influenza virions, or ovalbumin, resulted in a significant increase in antigen-specific systemic IgG and fecal IgA antibodies, compared with antigen alone. Pretreatment of VRP with UV light largely abrogated this adjuvant effect. These results demonstrate that alphavirus replicon particles possess intrinsic systemic and mucosal adjuvant activity and suggest that VRP RNA replication is the trigger for this activity. We feel that these observations and the continued experimentation they stimulate will ultimately define the specific components of an alternative pathway for the induction of mucosal immunity, and if the activity is evident in humans, will enable new possibilities for safe and inexpensive subunit and inactivated vaccines.
Publication Date: 2006-02-27 PubMed ID: 16505353PubMed Central: PMC1383499DOI: 10.1073/pnas.0600287103Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article
  • Research Support
  • N.I.H.
  • Extramural

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The abstract discusses a study showing that Venezuelan equine encephalitis virus replicon particles (VRP) have intrinsic systemic and mucosal adjuvant activity, which can enhance the body’s immune response after vaccination. This process may pave the way for safe, inexpensive vaccines.

Explanation of the Research

  • The featured investigation revolves around the capacity of Venezuelan equine encephalitis virus replicon particles to act as adjuvants, substances that enhance the body’s immune response to a vaccine. This capacity is demonstrated across multiple mucosal surfaces even after peripheral delivery. Mucosal surfaces refer to the moist, inner lining of some organs and body cavities, making them a crucial part of the immune response towards many pathogens.
  • The research was conducted by co-inoculating (simultaneously injecting) null VRP (VRP not expressing any transgene) with inactivated influenza virions or ovalbumin. The result was a significant increase in the production of IgG (an indicator of a systemic immune response) and fecal IgA antibodies (which suggest a mucosal immune response), compared to using the antigens alone.
  • The VRP’s adjuvant effect, however, was largely negated when the VRP was pretreated with UV light. This seemed to imply that the VRP’s RNA replication process was the main causative factor behind the adjuvant activity.

Implications of the Research

  • This research is significant in the field of infectious diseases and immunology as it presents an alternative pathway for inducing mucosal immunity. While additional research is needed, this observation can redefine the understanding of the human immune response and the process of vaccine development.
  • The research suggests that VRP’s inherently possess their own systemic and mucosal adjuvant activity. If the same activity is evident in humans, it could open up opportunities for creating new subunit and inactivated vaccines which can be cheaper, less risky, and more effective against mucosal pathogens.

Cite This Article

APA
Thompson JM, Whitmore AC, Konopka JL, Collier ML, Richmond EM, Davis NL, Staats HF, Johnston RE. (2006). Mucosal and systemic adjuvant activity of alphavirus replicon particles. Proc Natl Acad Sci U S A, 103(10), 3722-3727. https://doi.org/10.1073/pnas.0600287103

Publication

ISSN: 0027-8424
NlmUniqueID: 7505876
Country: United States
Language: English
Volume: 103
Issue: 10
Pages: 3722-3727

Researcher Affiliations

Thompson, Joseph M
  • Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA.
Whitmore, Alan C
    Konopka, Jennifer L
      Collier, Martha L
        Richmond, Erin M B
          Davis, Nancy L
            Staats, Herman F
              Johnston, Robert E

                MeSH Terms

                • Adjuvants, Immunologic / administration & dosage
                • Animals
                • Cholera Toxin / administration & dosage
                • Cholera Toxin / immunology
                • Encephalitis Virus, Venezuelan Equine / immunology
                • Female
                • Immunity, Mucosal
                • Immunization
                • Immunoglobulin A / biosynthesis
                • Immunoglobulin G / biosynthesis
                • Mice
                • Mice, Inbred BALB C
                • Oligodeoxyribonucleotides / administration & dosage
                • Oligodeoxyribonucleotides / immunology
                • Ovalbumin / administration & dosage
                • Ovalbumin / immunology
                • Replicon / immunology

                Grant Funding

                • P01 AI046023 / NIAID NIH HHS
                • R01 AI051990 / NIAID NIH HHS
                • P01-AI46023 / NIAID NIH HHS
                • R01-AI51990 / NIAID NIH HHS

                Conflict of Interest Statement

                Conflict of interest statement: J.M.T. and R.E.J. are listed inventors on a patent application related to the subject matter of this article. R.E.J. is the unpaid Executive Director of Global Vaccines, Inc., a not-for-profit company that holds a license to the technology described in the article.

                References

                This article includes 55 references
                1. André FE. Vaccinology: past achievements, present roadblocks and future promises.. Vaccine 2003 Jan 30;21(7-8):593-5.
                  pubmed: 12531323doi: 10.1016/s0264-410x(02)00702-8google scholar: lookup
                2. Pushko P, Parker M, Ludwig GV, Davis NL, Johnston RE, Smith JF. Replicon-helper systems from attenuated Venezuelan equine encephalitis virus: expression of heterologous genes in vitro and immunization against heterologous pathogens in vivo.. Virology 1997 Dec 22;239(2):389-401.
                  pubmed: 9434729doi: 10.1006/viro.1997.8878google scholar: lookup
                3. Lee JS, Dyas BK, Nystrom SS, Lind CM, Smith JF, Ulrich RG. Immune protection against staphylococcal enterotoxin-induced toxic shock by vaccination with a Venezuelan equine encephalitis virus replicon.. J Infect Dis 2002 Apr 15;185(8):1192-6.
                  pubmed: 11930333doi: 10.1086/339677google scholar: lookup
                4. Dong M, Zhang PF, Grieder F, Lee J, Krishnamurthy G, VanCott T, Broder C, Polonis VR, Yu XF, Shao Y, Faix D, Valente P, Quinnan GV Jr. Induction of primary virus-cross-reactive human immunodeficiency virus type 1-neutralizing antibodies in small animals by using an alphavirus-derived in vivo expression system.. J Virol 2003 Mar;77(5):3119-30.
                5. Burkhard MJ, Valenski L, Leavell S, Dean GA, Tompkins WA. Evaluation of FIV protein-expressing VEE-replicon vaccine vectors in cats.. Vaccine 2002 Dec 13;21(3-4):258-68.
                  pubmed: 12450701doi: 10.1016/s0264-410x(02)00455-3google scholar: lookup
                6. Schultz-Cherry S, Dybing JK, Davis NL, Williamson C, Suarez DL, Johnston R, Perdue ML. Influenza virus (A/HK/156/97) hemagglutinin expressed by an alphavirus replicon system protects chickens against lethal infection with Hong Kong-origin H5N1 viruses.. Virology 2000 Dec 5;278(1):55-9.
                  pubmed: 11112481doi: 10.1006/viro.2000.0635google scholar: lookup
                7. Balasuriya UB, Heidner HW, Davis NL, Wagner HM, Hullinger PJ, Hedges JF, Williams JC, Johnston RE, David Wilson W, Liu IK, James MacLachlan N. Alphavirus replicon particles expressing the two major envelope proteins of equine arteritis virus induce high level protection against challenge with virulent virus in vaccinated horses.. Vaccine 2002 Feb 22;20(11-12):1609-17.
                  pubmed: 11858869doi: 10.1016/s0264-410x(01)00485-6google scholar: lookup
                8. Pushko P, Geisbert J, Parker M, Jahrling P, Smith J. Individual and bivalent vaccines based on alphavirus replicons protect guinea pigs against infection with Lassa and Ebola viruses.. J Virol 2001 Dec;75(23):11677-85.
                9. Johnston RE, Johnson PR, Connell MJ, Montefiori DC, West A, Collier ML, Cecil C, Swanstrom R, Frelinger JA, Davis NL. Vaccination of macaques with SIV immunogens delivered by Venezuelan equine encephalitis virus replicon particle vectors followed by a mucosal challenge with SIVsmE660.. Vaccine 2005 Oct 10;23(42):4969-79.
                  pubmed: 16005121doi: 10.1016/j.vaccine.2005.05.034google scholar: lookup
                10. Kinney RM, Johnson BJ, Welch JB, Tsuchiya KR, Trent DW. The full-length nucleotide sequences of the virulent Trinidad donkey strain of Venezuelan equine encephalitis virus and its attenuated vaccine derivative, strain TC-83.. Virology 1989 May;170(1):19-30.
                  pubmed: 2524126doi: 10.1016/0042-6822(89)90347-4google scholar: lookup
                11. Strauss JH, Strauss EG. The alphaviruses: gene expression, replication, and evolution.. Microbiol Rev 1994 Sep;58(3):491-562.
                  pmc: PMC372977pubmed: 7968923doi: 10.1128/mr.58.3.491-562.1994google scholar: lookup
                12. Frolov I, Hoffman TA, Prágai BM, Dryga SA, Huang HV, Schlesinger S, Rice CM. Alphavirus-based expression vectors: strategies and applications.. Proc Natl Acad Sci U S A 1996 Oct 15;93(21):11371-7.
                  pmc: PMC38064pubmed: 8876142doi: 10.1073/pnas.93.21.11371google scholar: lookup
                13. MacDonald GH, Johnston RE. Role of dendritic cell targeting in Venezuelan equine encephalitis virus pathogenesis.. J Virol 2000 Jan;74(2):914-22.
                14. Moran TP, Collier M, McKinnon KP, Davis NL, Johnston RE, Serody JS. A novel viral system for generating antigen-specific T cells.. J Immunol 2005 Sep 1;175(5):3431-8.
                  pubmed: 16116238doi: 10.4049/jimmunol.175.5.3431google scholar: lookup
                15. Gupta S, Janani R, Bin Q, Luciw P, Greer C, Perri S, Legg H, Donnelly J, Barnett S, O'Hagan D, Polo JM, Vajdy M. Characterization of human immunodeficiency virus Gag-specific gamma interferon-expressing cells following protective mucosal immunization with alphavirus replicon particles.. J Virol 2005 Jun;79(11):7135-45.
                16. Zuercher AW, Coffin SE, Thurnheer MC, Fundova P, Cebra JJ. Nasal-associated lymphoid tissue is a mucosal inductive site for virus-specific humoral and cellular immune responses.. J Immunol 2002 Feb 15;168(4):1796-803.
                  pubmed: 11823512doi: 10.4049/jimmunol.168.4.1796google scholar: lookup
                17. McGhee J. R., Lamm M. E., Strober W. In: Mucosal Immunology. Ogra P., Mestecky J., Lamm M., Strober W., Bienenstock J., McGhee J. R., editors. London: Academic; 1999. pp. 485–506.
                18. Butcher E. In: Mucosal Immunology. Ogra P., Mestecky J., Lamm M., Strober W., Bienenstock J., McGhee J. R., editors. London: Academic; 1999. pp. 507–522.
                19. Kunkel EJ, Butcher EC. Plasma-cell homing.. Nat Rev Immunol 2003 Oct;3(10):822-9.
                  pubmed: 14523388doi: 10.1038/nri1203google scholar: lookup
                20. McGhee JR, Mestecky J, Dertzbaugh MT, Eldridge JH, Hirasawa M, Kiyono H. The mucosal immune system: from fundamental concepts to vaccine development.. Vaccine 1992;10(2):75-88.
                  pubmed: 1539467doi: 10.1016/0264-410x(92)90021-bgoogle scholar: lookup
                21. Logan AC, Chow KP, George A, Weinstein PD, Cebra JJ. Use of Peyer's patch and lymph node fragment cultures to compare local immune responses to Morganella morganii.. Infect Immun 1991 Mar;59(3):1024-31.
                22. Meckelein B, Externest D, Schmidt MA, Frey A. Contribution of serum immunoglobulin transudate to the antibody immune status of murine intestinal secretions: influence of different sampling procedures.. Clin Diagn Lab Immunol 2003 Sep;10(5):831-4.
                23. Smith PL, Lombardi G, Foster GR. Type I interferons and the innate immune response--more than just antiviral cytokines.. Mol Immunol 2005 May;42(8):869-77.
                  pubmed: 15829276doi: 10.1016/j.molimm.2004.11.008google scholar: lookup
                24. Alexopoulou L, Holt AC, Medzhitov R, Flavell RA. Recognition of double-stranded RNA and activation of NF-kappaB by Toll-like receptor 3.. Nature 2001 Oct 18;413(6857):732-8.
                  pubmed: 11607032doi: 10.1038/35099560google scholar: lookup
                25. Heil F, Hemmi H, Hochrein H, Ampenberger F, Kirschning C, Akira S, Lipford G, Wagner H, Bauer S. Species-specific recognition of single-stranded RNA via toll-like receptor 7 and 8.. Science 2004 Mar 5;303(5663):1526-9.
                  pubmed: 14976262doi: 10.1126/science.1093620google scholar: lookup
                26. Samuel CE. Antiviral actions of interferons.. Clin Microbiol Rev 2001 Oct;14(4):778-809, table of contents.
                  pmc: PMC89003pubmed: 11585785doi: 10.1128/cmr.14.4.778-809.2001google scholar: lookup
                27. Yoneyama M, Kikuchi M, Matsumoto K, Imaizumi T, Miyagishi M, Taira K, Foy E, Loo YM, Gale M Jr, Akira S, Yonehara S, Kato A, Fujita T. Shared and unique functions of the DExD/H-box helicases RIG-I, MDA5, and LGP2 in antiviral innate immunity.. J Immunol 2005 Sep 1;175(5):2851-8.
                  pubmed: 16116171doi: 10.4049/jimmunol.175.5.2851google scholar: lookup
                28. Yamamoto M, McGhee JR, Hagiwara Y, Otake S, Kiyono H. Genetically manipulated bacterial toxin as a new generation mucosal adjuvant.. Scand J Immunol 2001 Mar;53(3):211-7.
                29. Klinman DM, Currie D, Gursel I, Verthelyi D. Use of CpG oligodeoxynucleotides as immune adjuvants.. Immunol Rev 2004 Jun;199:201-16.
                30. Brimnes MK, Bonifaz L, Steinman RM, Moran TM. Influenza virus-induced dendritic cell maturation is associated with the induction of strong T cell immunity to a coadministered, normally nonimmunogenic protein.. J Exp Med 2003 Jul 7;198(1):133-44.
                  pmc: PMC2196079pubmed: 12847140doi: 10.1084/jem.20030266google scholar: lookup
                31. Boisgérault F, Rueda P, Sun CM, Hervas-Stubbs S, Rojas M, Leclerc C. Cross-priming of T cell responses by synthetic microspheres carrying a CD8+ T cell epitope requires an adjuvant signal.. J Immunol 2005 Mar 15;174(6):3432-9.
                  pubmed: 15749877doi: 10.4049/jimmunol.174.6.3432google scholar: lookup
                32. Hutchings CL, Gilbert SC, Hill AV, Moore AC. Novel protein and poxvirus-based vaccine combinations for simultaneous induction of humoral and cell-mediated immunity.. J Immunol 2005 Jul 1;175(1):599-606.
                  pubmed: 15972697doi: 10.4049/jimmunol.175.1.599google scholar: lookup
                33. Phumiamorn S, Sato H, Kamiyama T, Kurokawa M, Shiraki K. Induction of humoral and cell-mediated immunity to hepatitis B surface antigen by a novel adjuvant activity of Oka varicella vaccine.. J Gen Virol 2003 Feb;84(Pt 2):287-291.
                  pubmed: 12560559doi: 10.1099/vir.0.18692-0google scholar: lookup
                34. Mlcková P, Cechová D, Chalupná P, Novotná O, Prokesová L. Enhanced systemic and mucosal antibody responses to a model protein antigen after intranasal and intratracheal immunisation using Bacillus firmus as an adjuvant.. Immunol Lett 2001 May 1;77(1):39-45.
                  pubmed: 11348668doi: 10.1016/s0165-2478(01)00192-4google scholar: lookup
                35. Kraehenbuhl JP, Neutra MR. Molecular and cellular basis of immune protection of mucosal surfaces.. Physiol Rev 1992 Oct;72(4):853-79.
                  pubmed: 1438580doi: 10.1152/physrev.1992.72.4.853google scholar: lookup
                36. Bouvet JP, Decroix N, Pamonsinlapatham P. Stimulation of local antibody production: parenteral or mucosal vaccination?. Trends Immunol 2002 Apr;23(4):209-13.
                  pubmed: 11923116doi: 10.1016/s1471-4906(02)02186-5google scholar: lookup
                37. Underdown B., Plotkin S. In: Mucosal Immunology. Ogra P., Mestecky J., Lamm M., Strober W., Bienenstock J., McGhee J. R., editors. London: Academic; 1999. pp. 719–728.
                38. Charles PC, Brown KW, Davis NL, Hart MK, Johnston RE. Mucosal immunity induced by parenteral immunization with a live attenuated Venezuelan equine encephalitis virus vaccine candidate.. Virology 1997 Feb 17;228(2):153-60.
                  pubmed: 9123821doi: 10.1006/viro.1996.8381google scholar: lookup
                39. Coffin SE, Klinek M, Offit PA. Induction of virus-specific antibody production by lamina propria lymphocytes following intramuscular inoculation with rotavirus.. J Infect Dis 1995 Sep;172(3):874-8.
                  pubmed: 7658087doi: 10.1093/infdis/172.3.874google scholar: lookup
                40. Ogra PL, Kerr-Grant D, Umana G, Dzierba J, Weintraub D. Antibody response in serum and nasopharynx after naturally acquired and vaccine-induced infection with rubella virus.. N Engl J Med 1971 Dec 9;285(24):1333-9.
                  pubmed: 4107718doi: 10.1056/nejm197112092852401google scholar: lookup
                41. Musey L, Ding Y, Elizaga M, Ha R, Celum C, McElrath MJ. HIV-1 vaccination administered intramuscularly can induce both systemic and mucosal T cell immunity in HIV-1-uninfected individuals.. J Immunol 2003 Jul 15;171(2):1094-101.
                  pubmed: 12847284doi: 10.4049/jimmunol.171.2.1094google scholar: lookup
                42. Decroix N, Quan CP, Pamonsinlapatham P, Bouvet JP. Mucosal immunity induced by intramuscular administration of free peptides in-line with PADRE: IgA antibodies to the ELDKWA epitope of HIV gp41.. Scand J Immunol 2002 Jul;56(1):59-65.
                43. Enioutina EY, Visic D, McGee ZA, Daynes RA. The induction of systemic and mucosal immune responses following the subcutaneous immunization of mature adult mice: characterization of the antibodies in mucosal secretions of animals immunized with antigen formulations containing a vitamin D3 adjuvant.. Vaccine 1999 Aug 6;17(23-24):3050-64.
                  pubmed: 10462240doi: 10.1016/s0264-410x(99)00147-4google scholar: lookup
                44. Egan MA, Chong SY, Hagen M, Megati S, Schadeck EB, Piacente P, Ma BJ, Montefiori DC, Haynes BF, Israel ZR, Eldridge JH, Staats HF. A comparative evaluation of nasal and parenteral vaccine adjuvants to elicit systemic and mucosal HIV-1 peptide-specific humoral immune responses in cynomolgus macaques.. Vaccine 2004 Sep 9;22(27-28):3774-88.
                  pubmed: 15315859doi: 10.1016/j.vaccine.2004.03.011google scholar: lookup
                45. Glenn GM, Taylor DN, Li X, Frankel S, Montemarano A, Alving CR. Transcutaneous immunization: a human vaccine delivery strategy using a patch.. Nat Med 2000 Dec;6(12):1403-6.
                  pubmed: 11100128doi: 10.1038/82225google scholar: lookup
                46. Kawabata S, Miller CJ, Lehner T, Fujihashi K, Kubota M, McGhee JR, Imaoka K, Hiroi T, Kiyono H. Induction of Th2 cytokine expression for p27-specific IgA B cell responses after targeted lymph node immunization with simian immunodeficiency virus antigens in rhesus macaques.. J Infect Dis 1998 Jan;177(1):26-33.
                  pubmed: 9419166doi: 10.1086/513811google scholar: lookup
                47. McKenzie BS, Corbett AJ, Johnson S, Brady JL, Pleasance J, Kramer DR, Boyle JS, Jackson DC, Strugnell RA, Lew AM. Bypassing luminal barriers, delivery to a gut addressin by parenteral targeting elicits local IgA responses.. Int Immunol 2004 Nov;16(11):1613-22.
                  pubmed: 15466913doi: 10.1093/intimm/dxh163google scholar: lookup
                48. Vajdy M, Gardner J, Neidleman J, Cuadra L, Greer C, Perri S, O'Hagan D, Polo JM. Human immunodeficiency virus type 1 Gag-specific vaginal immunity and protection after local immunizations with sindbis virus-based replicon particles.. J Infect Dis 2001 Dec 15;184(12):1613-6.
                  pubmed: 11740739doi: 10.1086/324581google scholar: lookup
                49. Berglund P, Fleeton MN, Smerdou C, Liljeström P. Immunization with recombinant Semliki Forest virus induces protection against influenza challenge in mice.. Vaccine 1999 Feb 5;17(5):497-507.
                  pubmed: 10073729doi: 10.1016/s0264-410x(98)00224-2google scholar: lookup
                50. Leitner WW, Hwang LN, deVeer MJ, Zhou A, Silverman RH, Williams BR, Dubensky TW, Ying H, Restifo NP. Alphavirus-based DNA vaccine breaks immunological tolerance by activating innate antiviral pathways.. Nat Med 2003 Jan;9(1):33-9.
                  pmc: PMC1484510pubmed: 12496961doi: 10.1038/nm813google scholar: lookup
                51. Davis NL, Caley IJ, Brown KW, Betts MR, Irlbeck DM, McGrath KM, Connell MJ, Montefiori DC, Frelinger JA, Swanstrom R, Johnson PR, Johnston RE. Vaccination of macaques against pathogenic simian immunodeficiency virus with Venezuelan equine encephalitis virus replicon particles.. J Virol 2000 Jan;74(1):371-8.
                52. Bradney CP, Sempowski GD, Liao HX, Haynes BF, Staats HF. Cytokines as adjuvants for the induction of anti-human immunodeficiency virus peptide immunoglobulin G (IgG) and IgA antibodies in serum and mucosal secretions after nasal immunization.. J Virol 2002 Jan;76(2):517-24.
                53. Coffin SE, Clark SL, Bos NA, Brubaker JO, Offit PA. Migration of antigen-presenting B cells from peripheral to mucosal lymphoid tissues may induce intestinal antigen-specific IgA following parenteral immunization.. J Immunol 1999 Sep 15;163(6):3064-70.
                  pubmed: 10477570
                54. Yamamoto M, Rennert P, McGhee JR, Kweon MN, Yamamoto S, Dohi T, Otake S, Bluethmann H, Fujihashi K, Kiyono H. Alternate mucosal immune system: organized Peyer's patches are not required for IgA responses in the gastrointestinal tract.. J Immunol 2000 May 15;164(10):5184-91.
                  pubmed: 10799877doi: 10.4049/jimmunol.164.10.5184google scholar: lookup
                55. Csencsits KL, Pascual DW. Absence of L-selectin delays mucosal B cell responses in nonintestinal effector tissues.. J Immunol 2002 Nov 15;169(10):5649-59.
                  pubmed: 12421944doi: 10.4049/jimmunol.169.10.5649google scholar: lookup

                Citations

                This article has been cited 56 times.
                1. Collins PL, Bukreyev A. Advances in the development of vaccines against Marburg and Ebola viruses.. Future Virol 2007 Nov;2(6):537-541.
                  doi: 10.2217/17460794.2.6.537pubmed: 36299498google scholar: lookup
                2. Su H, Imai K, Jia W, Li Z, DiCioccio RA, Serody JS, Poe JC, Chen BJ, Doan PL, Sarantopoulos S. Alphavirus Replicon Particle Vaccine Breaks B Cell Tolerance and Rapidly Induces IgG to Murine Hematolymphoid Tumor Associated Antigens.. Front Immunol 2022;13:865486.
                  doi: 10.3389/fimmu.2022.865486pubmed: 35686131google scholar: lookup
                3. Yang D. Application of Nanotechnology in the COVID-19 Pandemic.. Int J Nanomedicine 2021;16:623-649.
                  doi: 10.2147/IJN.S296383pubmed: 33531805google scholar: lookup
                4. Deng SQ, Yang X, Wei Y, Chen JT, Wang XJ, Peng HJ. A Review on Dengue Vaccine Development.. Vaccines (Basel) 2020 Feb 2;8(1).
                  doi: 10.3390/vaccines8010063pubmed: 32024238google scholar: lookup
                5. Sharma A, Knollmann-Ritschel B. Current Understanding of the Molecular Basis of Venezuelan Equine Encephalitis Virus Pathogenesis and Vaccine Development.. Viruses 2019 Feb 18;11(2).
                  doi: 10.3390/v11020164pubmed: 30781656google scholar: lookup
                6. Abente EJ, Rajao DS, Gauger PC, Vincent AL. Alphavirus-vectored hemagglutinin subunit vaccine provides partial protection against heterologous challenge in pigs.. Vaccine 2019 Mar 7;37(11):1533-1539.
                  doi: 10.1016/j.vaccine.2018.12.071pubmed: 30723064google scholar: lookup
                7. Munang'andu HM, Mutoloki S, Evensen Ø. An Overview of Challenges Limiting the Design of Protective Mucosal Vaccines for Finfish.. Front Immunol 2015;6:542.
                  doi: 10.3389/fimmu.2015.00542pubmed: 26557121google scholar: lookup
                8. Dalmia N, Klimstra WB, Mason C, Ramsay AJ. DNA-Launched Alphavirus Replicons Encoding a Fusion of Mycobacterial Antigens Acr and Ag85B Are Immunogenic and Protective in a Murine Model of TB Infection.. PLoS One 2015;10(8):e0136635.
                  doi: 10.1371/journal.pone.0136635pubmed: 26317509google scholar: lookup
                9. Tripp RA, Tompkins SM. Virus-vectored influenza virus vaccines.. Viruses 2014 Aug 7;6(8):3055-79.
                  doi: 10.3390/v6083055pubmed: 25105278google scholar: lookup
                10. Kim DY, Atasheva S, McAuley AJ, Plante JA, Frolova EI, Beasley DW, Frolov I. Enhancement of protein expression by alphavirus replicons by designing self-replicating subgenomic RNAs.. Proc Natl Acad Sci U S A 2014 Jul 22;111(29):10708-13.
                  doi: 10.1073/pnas.1408677111pubmed: 25002490google scholar: lookup
                11. Khalil SM, Tonkin DR, Snead AT, Parks GD, Johnston RE, White LJ. An alphavirus-based adjuvant enhances serum and mucosal antibodies, T cells, and protective immunity to influenza virus in neonatal mice.. J Virol 2014 Aug;88(16):9182-96.
                  doi: 10.1128/JVI.00327-14pubmed: 24899195google scholar: lookup
                12. Steil BP, Jorquera P, Westdijk J, Bakker WA, Johnston RE, Barro M. A mucosal adjuvant for the inactivated poliovirus vaccine.. Vaccine 2014 Jan 23;32(5):558-63.
                  doi: 10.1016/j.vaccine.2013.11.101pubmed: 24333345google scholar: lookup
                13. Zellweger RM, Miller R, Eddy WE, White LJ, Johnston RE, Shresta S. Role of humoral versus cellular responses induced by a protective dengue vaccine candidate.. PLoS Pathog 2013 Oct;9(10):e1003723.
                  doi: 10.1371/journal.ppat.1003723pubmed: 24204271google scholar: lookup
                14. Knudsen ML, Johansson DX, Kostic L, Nordström EK, Tegerstedt K, Pasetto A, Applequist SE, Ljungberg K, Sirard JC, Liljeström P. The adjuvant activity of alphavirus replicons is enhanced by incorporating the microbial molecule flagellin into the replicon.. PLoS One 2013;8(6):e65964.
                  doi: 10.1371/journal.pone.0065964pubmed: 23785460google scholar: lookup
                15. Westdijk J, Koedam P, Barro M, Steil BP, Collin N, Vedvick TS, Bakker WA, van der Ley P, Kersten G. Antigen sparing with adjuvanted inactivated polio vaccine based on Sabin strains.. Vaccine 2013 Feb 18;31(9):1298-304.
                  doi: 10.1016/j.vaccine.2012.12.076pubmed: 23313617google scholar: lookup
                16. Atasheva S, Kim DY, Akhrymuk M, Morgan DG, Frolova EI, Frolov I. Pseudoinfectious Venezuelan equine encephalitis virus: a new means of alphavirus attenuation.. J Virol 2013 Feb;87(4):2023-35.
                  doi: 10.1128/JVI.02881-12pubmed: 23221545google scholar: lookup
                17. Lukashevich IS. Advanced vaccine candidates for Lassa fever.. Viruses 2012 Oct 29;4(11):2514-57.
                  doi: 10.3390/v4112514pubmed: 23202493google scholar: lookup
                18. Dalmia N, Ramsay AJ. Prime-boost approaches to tuberculosis vaccine development.. Expert Rev Vaccines 2012 Oct;11(10):1221-33.
                  doi: 10.1586/erv.12.94pubmed: 23176655google scholar: lookup
                19. Tonkin DR, Whitmore A, Johnston RE, Barro M. Infected dendritic cells are sufficient to mediate the adjuvant activity generated by Venezuelan equine encephalitis virus replicon particles.. Vaccine 2012 Jun 22;30(30):4532-42.
                  doi: 10.1016/j.vaccine.2012.04.030pubmed: 22531556google scholar: lookup
                20. Durbin AP, Whitehead SS. Next-generation dengue vaccines: novel strategies currently under development.. Viruses 2011 Oct;3(10):1800-14.
                  doi: 10.3390/v3101800pubmed: 22069516google scholar: lookup
                21. Jurgens CK, Young KR, Madden VJ, Johnson PR, Johnston RE. A novel self-replicating chimeric lentivirus-like particle.. J Virol 2012 Jan;86(1):246-61.
                  doi: 10.1128/JVI.05191-11pubmed: 22013035google scholar: lookup
                22. Zimmer G. RNA replicons - a new approach for influenza virus immunoprophylaxis.. Viruses 2010 Feb;2(2):413-434.
                  doi: 10.3390/v2020413pubmed: 21994644google scholar: lookup
                23. Bolles M, Deming D, Long K, Agnihothram S, Whitmore A, Ferris M, Funkhouser W, Gralinski L, Totura A, Heise M, Baric RS. A double-inactivated severe acute respiratory syndrome coronavirus vaccine provides incomplete protection in mice and induces increased eosinophilic proinflammatory pulmonary response upon challenge.. J Virol 2011 Dec;85(23):12201-15.
                  doi: 10.1128/JVI.06048-11pubmed: 21937658google scholar: lookup
                24. Zhu W, Chen CJ, Thomas CE, Anderson JE, Jerse AE, Sparling PF. Vaccines for gonorrhea: can we rise to the challenge?. Front Microbiol 2011;2:124.
                  doi: 10.3389/fmicb.2011.00124pubmed: 21687431google scholar: lookup
                25. Dhanushkodi NR, Mohankumar V, Pokkali S, Raju R. Lipopolysaccharide inhibits Sindbis virus-induced IP-10 release in human peripheral blood mononuclear cells.. Viral Immunol 2011 Jun;24(3):237-43.
                  doi: 10.1089/vim.2010.0120pubmed: 21668365google scholar: lookup
                26. Kim DY, Atasheva S, Foy NJ, Wang E, Frolova EI, Weaver S, Frolov I. Design of chimeric alphaviruses with a programmed, attenuated, cell type-restricted phenotype.. J Virol 2011 May;85(9):4363-76.
                  doi: 10.1128/JVI.00065-11pubmed: 21345954google scholar: lookup
                27. Carroll TD, Matzinger SR, Barro M, Fritts L, McChesney MB, Miller CJ, Johnston RE. Alphavirus replicon-based adjuvants enhance the immunogenicity and effectiveness of Fluzone ® in rhesus macaques.. Vaccine 2011 Jan 29;29(5):931-40.
                  doi: 10.1016/j.vaccine.2010.11.024pubmed: 21111777google scholar: lookup
                28. Sheahan T, Whitmore A, Long K, Ferris M, Rockx B, Funkhouser W, Donaldson E, Gralinski L, Collier M, Heise M, Davis N, Johnston R, Baric RS. Successful vaccination strategies that protect aged mice from lethal challenge from influenza virus and heterologous severe acute respiratory syndrome coronavirus.. J Virol 2011 Jan;85(1):217-30.
                  doi: 10.1128/JVI.01805-10pubmed: 20980507google scholar: lookup
                29. LoBue AD, Lindesmith LC, Baric RS. Identification of cross-reactive norovirus CD4+ T cell epitopes.. J Virol 2010 Sep;84(17):8530-8.
                  doi: 10.1128/JVI.00727-10pubmed: 20573810google scholar: lookup
                30. Bergen MJ, Pan CH, Greer CE, Legg HS, Polo JM, Griffin DE. Comparison of the immune responses induced by chimeric alphavirus-vectored and formalin-inactivated alum-precipitated measles vaccines in mice.. PLoS One 2010 Apr 22;5(4):e10297.
                  doi: 10.1371/journal.pone.0010297pubmed: 20421972google scholar: lookup
                31. Fecek RJ, Marcondes Rezende M, Busch R, Hassing I, Pieters R, Cuff CF. Enteric reovirus infection stimulates peanut-specific IgG2a responses in a mouse food allergy model.. Immunobiology 2010 Dec;215(12):941-8.
                  doi: 10.1016/j.imbio.2010.02.004pubmed: 20356650google scholar: lookup
                32. Tonkin DR, Jorquera P, Todd T, Beard CW, Johnston RE, Barro M. Alphavirus replicon-based enhancement of mucosal and systemic immunity is linked to the innate response generated by primary immunization.. Vaccine 2010 Apr 19;28(18):3238-46.
                  doi: 10.1016/j.vaccine.2010.02.010pubmed: 20184975google scholar: lookup
                33. Pan CH, Greer CE, Hauer D, Legg HS, Lee EY, Bergen MJ, Lau B, Adams RJ, Polo JM, Griffin DE. A chimeric alphavirus replicon particle vaccine expressing the hemagglutinin and fusion proteins protects juvenile and infant rhesus macaques from measles.. J Virol 2010 Apr;84(8):3798-807.
                  doi: 10.1128/JVI.01566-09pubmed: 20130066google scholar: lookup
                34. Paessler S, Weaver SC. Vaccines for Venezuelan equine encephalitis.. Vaccine 2009 Nov 5;27 Suppl 4:D80-5.
                  doi: 10.1016/j.vaccine.2009.07.095pubmed: 19837294google scholar: lookup
                35. Konopka JL, Thompson JM, Whitmore AC, Webb DL, Johnston RE. Acute infection with venezuelan equine encephalitis virus replicon particles catalyzes a systemic antiviral state and protects from lethal virus challenge.. J Virol 2009 Dec;83(23):12432-42.
                  doi: 10.1128/JVI.00564-09pubmed: 19793821google scholar: lookup
                36. Gardner CL, Yin J, Burke CW, Klimstra WB, Ryman KD. Type I interferon induction is correlated with attenuation of a South American eastern equine encephalitis virus strain in mice.. Virology 2009 Aug 1;390(2):338-47.
                  doi: 10.1016/j.virol.2009.05.030pubmed: 19539968google scholar: lookup
                37. LoBue AD, Thompson JM, Lindesmith L, Johnston RE, Baric RS. Alphavirus-adjuvanted norovirus-like particle vaccines: heterologous, humoral, and mucosal immune responses protect against murine norovirus challenge.. J Virol 2009 Apr;83(7):3212-27.
                  doi: 10.1128/JVI.01650-08pubmed: 19176631google scholar: lookup
                38. Chachu KA, LoBue AD, Strong DW, Baric RS, Virgin HW. Immune mechanisms responsible for vaccination against and clearance of mucosal and lymphatic norovirus infection.. PLoS Pathog 2008 Dec;4(12):e1000236.
                  doi: 10.1371/journal.ppat.1000236pubmed: 19079577google scholar: lookup
                39. Mok H, Tollefson SJ, Podsiad AB, Shepherd BE, Polosukhin VV, Johnston RE, Williams JV, Crowe JE Jr. An alphavirus replicon-based human metapneumovirus vaccine is immunogenic and protective in mice and cotton rats.. J Virol 2008 Nov;82(22):11410-8.
                  doi: 10.1128/JVI.01688-08pubmed: 18786987google scholar: lookup
                40. Thompson JM, Whitmore AC, Staats HF, Johnston R. The contribution of type I interferon signaling to immunity induced by alphavirus replicon vaccines.. Vaccine 2008 Sep 15;26(39):4998-5003.
                  doi: 10.1016/j.vaccine.2008.07.011pubmed: 18656518google scholar: lookup
                41. Kamrud KI, Alterson KD, Andrews C, Copp LO, Lewis WC, Hubby B, Patel D, Rayner JO, Talarico T, Smith JF. Analysis of Venezuelan equine encephalitis replicon particles packaged in different coats.. PLoS One 2008 Jul 16;3(7):e2709.
                  doi: 10.1371/journal.pone.0002709pubmed: 18628938google scholar: lookup
                42. Thompson JM, Whitmore AC, Staats HF, Johnston RE. Alphavirus replicon particles acting as adjuvants promote CD8+ T cell responses to co-delivered antigen.. Vaccine 2008 Aug 5;26(33):4267-75.
                  doi: 10.1016/j.vaccine.2008.05.046pubmed: 18582997google scholar: lookup
                43. Thompson JM, Nicholson MG, Whitmore AC, Zamora M, West A, Iwasaki A, Staats HF, Johnston RE. Nonmucosal alphavirus vaccination stimulates a mucosal inductive environment in the peripheral draining lymph node.. J Immunol 2008 Jul 1;181(1):574-85.
                  doi: 10.4049/jimmunol.181.1.574pubmed: 18566424google scholar: lookup
                44. Lin Y, Kwon T, Polo J, Zhu YF, Coates S, Crawford K, Dong C, Wininger M, Hall J, Selby M, Coit D, Medina-Selby A, McCoin C, Ng P, Drane D, Chien D, Han J, Vajdy M, Houghton M. Induction of broad CD4+ and CD8+ T-cell responses and cross-neutralizing antibodies against hepatitis C virus by vaccination with Th1-adjuvanted polypeptides followed by defective alphaviral particles expressing envelope glycoproteins gpE1 and gpE2 and nonstructural proteins 3, 4, and 5.. J Virol 2008 Aug;82(15):7492-503.
                  doi: 10.1128/JVI.02743-07pubmed: 18508900google scholar: lookup
                45. Cubillos C, de la Torre BG, Jakab A, Clementi G, Borrás E, Bárcena J, Andreu D, Sobrino F, Blanco E. Enhanced mucosal immunoglobulin A response and solid protection against foot-and-mouth disease virus challenge induced by a novel dendrimeric peptide.. J Virol 2008 Jul;82(14):7223-30.
                  doi: 10.1128/JVI.00401-08pubmed: 18448530google scholar: lookup
                46. Konopka JL, Penalva LO, Thompson JM, White LJ, Beard CW, Keene JD, Johnston RE. A two-phase innate host response to alphavirus infection identified by mRNP-tagging in vivo.. PLoS Pathog 2007 Dec;3(12):e199.
                  doi: 10.1371/journal.ppat.0030199pubmed: 18215114google scholar: lookup
                47. Hubby B, Talarico T, Maughan M, Reap EA, Berglund P, Kamrud KI, Copp L, Lewis W, Cecil C, Norberg P, Wagner J, Watson A, Negri S, Burnett BK, Graham A, Smith JF, Chulay JD. Development and preclinical evaluation of an alphavirus replicon vaccine for influenza.. Vaccine 2007 Nov 23;25(48):8180-9.
                  doi: 10.1016/j.vaccine.2007.09.038pubmed: 17961878google scholar: lookup
                48. Mok H, Lee S, Utley TJ, Shepherd BE, Polosukhin VV, Collier ML, Davis NL, Johnston RE, Crowe JE Jr. Venezuelan equine encephalitis virus replicon particles encoding respiratory syncytial virus surface glycoproteins induce protective mucosal responses in mice and cotton rats.. J Virol 2007 Dec;81(24):13710-22.
                  doi: 10.1128/JVI.01351-07pubmed: 17928349google scholar: lookup
                49. Ljungberg K, Whitmore AC, Fluet ME, Moran TP, Shabman RS, Collier ML, Kraus AA, Thompson JM, Montefiori DC, Beard C, Johnston RE. Increased immunogenicity of a DNA-launched Venezuelan equine encephalitis virus-based replicon DNA vaccine.. J Virol 2007 Dec;81(24):13412-23.
                  doi: 10.1128/JVI.01799-07pubmed: 17913817google scholar: lookup
                50. Fluet ME, Whitmore AC, Moshkoff DA, Fu K, Tang Y, Collier ML, West A, Moore DT, Swanstrom R, Johnston RE, Davis NL. Effects of rapid antigen degradation and VEE glycoprotein specificity on immune responses induced by a VEE replicon vaccine.. Virology 2008 Jan 5;370(1):22-32.
                  doi: 10.1016/j.virol.2007.08.020pubmed: 17904185google scholar: lookup
                51. Moran TP, Burgents JE, Long B, Ferrer I, Jaffee EM, Tisch RM, Johnston RE, Serody JS. Alphaviral vector-transduced dendritic cells are successful therapeutic vaccines against neu-overexpressing tumors in wild-type mice.. Vaccine 2007 Sep 4;25(36):6604-12.
                  doi: 10.1016/j.vaccine.2007.06.058pubmed: 17675184google scholar: lookup
                52. White LJ, Parsons MM, Whitmore AC, Williams BM, de Silva A, Johnston RE. An immunogenic and protective alphavirus replicon particle-based dengue vaccine overcomes maternal antibody interference in weanling mice.. J Virol 2007 Oct;81(19):10329-39.
                  doi: 10.1128/JVI.00512-07pubmed: 17652394google scholar: lookup
                53. Bourne N, Scholle F, Silva MC, Rossi SL, Dewsbury N, Judy B, De Aguiar JB, Leon MA, Estes DM, Fayzulin R, Mason PW. Early production of type I interferon during West Nile virus infection: role for lymphoid tissues in IRF3-independent interferon production.. J Virol 2007 Sep;81(17):9100-8.
                  doi: 10.1128/JVI.00316-07pubmed: 17567689google scholar: lookup
                54. Thornburg NJ, Ray CA, Collier ML, Liao HX, Pickup DJ, Johnston RE. Vaccination with Venezuelan equine encephalitis replicons encoding cowpox virus structural proteins protects mice from intranasal cowpox virus challenge.. Virology 2007 Jun 5;362(2):441-52.
                  doi: 10.1016/j.virol.2007.01.001pubmed: 17292434google scholar: lookup
                55. Filone CM, Heise M, Doms RW, Bertolotti-Ciarlet A. Development and characterization of a Rift Valley fever virus cell-cell fusion assay using alphavirus replicon vectors.. Virology 2006 Dec 5-20;356(1-2):155-64.
                  doi: 10.1016/j.virol.2006.07.035pubmed: 16945399google scholar: lookup
                56. Hidmark AS, Nordström EK, Dosenovic P, Forsell MN, Liljeström P, Karlsson Hedestam GB. Humoral responses against coimmunized protein antigen but not against alphavirus-encoded antigens require alpha/beta interferon signaling.. J Virol 2006 Jul;80(14):7100-10.
                  doi: 10.1128/JVI.02579-05pubmed: 16809315google scholar: lookup