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Cell and tissue research1976; 172(4); 447-454; doi: 10.1007/BF00220331

Insulin-, glucagon-, and somatostatin-immunoreactive endocrine cells in the equine pancreas.

Abstract: Equine pancreas was investigated with immunohistochemical methods to study the distribution of endocrine cells immunoreactive to anti-insulin, anti-glucagon, and anti-somatostatin. A-cells demonstrable by anti-glucagon are located in the center of Langerhans islets and frequently in the duct epithelium. Few A-cells are seen associated to acini. Anti-insulin reactive B-cells form a large zone around the center of the Langerhans islets in which some B-cells lie between exocrine cells and others, although few, are located in the duct epithelium. D-cells stained with anti-somatostatin serum form a discontinuous outermost zone around the Langerhans islets. In some islets the D-cells are also observed among the B-cells or between the border of A- and B-cells. Single D-cells are seen in the duct epithelium or between acinar cells. In younger horses, endocrine cells are more frequently associated in bulges of the duct system. The histotopographic relation between these endocrine cell types is discussed with respect to its functional significance.
Publication Date: 1976-09-29 PubMed ID: 791497DOI: 10.1007/BF00220331Google Scholar: Lookup
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  • Journal Article

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.

This research paper delves into the study of the distribution of certain endocrine cells within the equine (horse) pancreas, including cells that are reactive to insulin, glucagon, and somatostatin. The research used immunohistochemical methods, focusing on the relationship between these endocrine cell types in their specific locations and their functional significance.

Methodology

  • The research was carried out using immunohistochemical methods, a technique used to detect specific proteins in cells of a tissue section.
  • The researchers studied the cells in the equine pancreas that are reactive to substances such as insulin, glucagon, and somatostatin.

Key Findings

  • A-cells that were demonstrable by anti-glucagon were located at the center of the Langerhans islets and frequently within the duct epithelium.
  • There were only a few A-cells seen associated with acini (small exocrine glands).
  • B-cells reactive to anti-insulin formed a large zone around the center of the Langerhans islets and, while few were located in the duct epithelium, others laid between exocrine cells.
  • D-cells stained with anti-somatostatin serum formed an outermost zone around the Langerhans islets, in a discontinuous pattern. These D-cells were found among the intra-islet B-cells, at the border of A- and B-cells, and as single cells within the duct or acinar epithelium.
  • In younger horses, endocrine cells were more frequently grouped in the bulges of the duct system.

Discussion

  • The research discusses the histotopographic relationship between these endocrine cells and its functional significance.
  • This highlights the topographical relation between these cells and the understanding of the overall function and mechanism of the equine pancreas.

Significance of the Study

  • This study is essential in understanding the cell mechanics within the equine pancreas and provides crucial insight into the organ’s function and structure.
  • It opens doors for further research on equine pancreas function and associated pathologies for better management and treatment of related diseases.

Cite This Article

APA
Helmstaedter V, Feurle GE, Forssmann WG. (1976). Insulin-, glucagon-, and somatostatin-immunoreactive endocrine cells in the equine pancreas. Cell Tissue Res, 172(4), 447-454. https://doi.org/10.1007/BF00220331

Publication

ISSN: 0302-766X
NlmUniqueID: 0417625
Country: Germany
Language: English
Volume: 172
Issue: 4
Pages: 447-454

Researcher Affiliations

Helmstaedter, V
    Feurle, G E
      Forssmann, W G

        MeSH Terms

        • Animals
        • Antigens
        • Fluorescent Antibody Technique
        • Glucagon / analysis
        • Horses / anatomy & histology
        • Insulin / analysis
        • Islets of Langerhans / cytology
        • Islets of Langerhans / immunology
        • Somatostatin / analysis
        • Somatostatin / immunology

        References

        This article includes 19 references
        1. Polak JM, Pearse AG, Grimelius L, Bloom SR. Growth-hormone release-inhibiting hormone in gastrointestinal and pancreatic D cells.. Lancet 1975 May 31;1(7918):1220-2.
          pubmed: 48838doi: 10.1016/s0140-6736(75)92198-4google scholar: lookup
        2. Bussolati G, Capella C, Vassallo G, Solcia E. Histochemical and ultrastructural studies on pancreatic A cells. Evidence for glucagon and non-glucagon components of the alpha granule.. Diabetologia 1971 Jun;7(3):181-8.
          pubmed: 4104659doi: 10.1007/BF01212551google scholar: lookup
        3. Pearse AG, Polak JM. Cytochemical evidence for the neural crest origin of mammalian ultimobranchial C cells.. Histochemie 1971;27(2):96-102.
          pubmed: 5092696doi: 10.1007/BF00284951google scholar: lookup
        4. LACY PE, DAVIES J. Preliminary studies on the demonstration of insulin in the islets by the fluorescent antibody technic.. Diabetes 1957 Jul-Aug;6(4):354-7.
          pubmed: 13447765doi: 10.2337/diab.6.4.354google scholar: lookup
        5. BJORKMAN N, HELLERSTROM C, HELLMAN B, ROTHMAN U. Ultrastructure and enzyme histochemistry of the pancreatic islets in the horse.. Z Zellforsch Mikrosk Anat 1963;59:535-54.
          pubmed: 13971318doi: 10.1007/BF00368727google scholar: lookup
        6. GOODFRIEND TL, LEVINE L, FASMAN GD. ANTIBODIES TO BRADYKININ AND ANGIOTENSIN: A USE OF CARBODIIMIDES IN IMMUNOLOGY.. Science 1964 Jun 12;144(3624):1344-6.
          pubmed: 14171526doi: 10.1126/science.144.3624.1344google scholar: lookup
        7. Pictet RL, Rall LB, Phelps P, Rutter WJ. The neural crest and the origin of the insulin-producing and other gastrointestinal hormone-producing cells.. Science 1976 Jan 16;191(4223):191-2.
          pubmed: 1108195doi: 10.1126/science.1108195google scholar: lookup
        8. BAUM J, SIMONS BE Jr, UNGER RH, MADISON LL. Localization of glucagon in the alpha cells in the pancreatic islet by immunofluorescent technics.. Diabetes 1962 Sep-Oct;11:371-4.
          pubmed: 13966974
        9. Forssmann A. The ultrastructure of the cell types in the endocrine pancreas of the horse.. Cell Tissue Res 1976 Mar 16;167(2):179-95.
          pubmed: 769989doi: 10.1007/BF00224326google scholar: lookup
        10. Dubois PM, Paulin C, Assan R, Dubois MP. Evidence for immunoreactive somatostatin in the endocrine cells of human foetal pancreas.. Nature 1975 Aug 28;256(5520):731-2.
          pubmed: 1097948doi: 10.1038/256731a0google scholar: lookup
        11. Hökfelt T, Efendić S, Hellerström C, Johansson O, Luft R, Arimura A. Cellular localization of somatostatin in endocrine-like cells and neurons of the rat with special references to the A1-cells of the pancreatic islets and to the hypothalamus.. Acta Endocrinol Suppl (Copenh) 1975;200:5-41.
          pubmed: 52267
        12. Reichlin M, Schnure JJ, Vance VK. Induction of antibodies to porcine ACTH in rabbits with nonsteroidogenic polymers of BSA and ACTH.. Proc Soc Exp Biol Med 1968 Jun;128(2):347-50.
          pubmed: 4298696doi: 10.3181/00379727-128-33011google scholar: lookup
        13. Pelletier G, Leclerc R, Arimura A, Schally AV. Letter: Immunohistochemical localization of somatostatin in the rat pancreas.. J Histochem Cytochem 1975 Sep;23(9):699-702.
          pubmed: 1100709doi: 10.1177/23.9.1100709google scholar: lookup
        14. Luft R, Efendic S, Hökfelt T, Johansson O, Arimura A. Immunohistochemical evidence for the localization of somatostatin--like immunoreactivity in a cell population of the pancreatic islets.. Med Biol 1974 Dec;52(6):428-30.
          pubmed: 4613970
        15. Orci L, Baetens D, Dubois MP, Rufener C. Evidence for the D-cell of the pancreas secreting somatostatin.. Horm Metab Res 1975 Sep;7(5):400-2.
          pubmed: 1102409doi: 10.1055/s-0028-1093736google scholar: lookup
        16. Lotstra F, van der Loo W, Gepts W. Are gastrin-cells present in mammalian pancreatic islets?. Diabetologia 1974 Aug;10(4):291-302.
          pubmed: 4137547doi: 10.1007/BF02627730google scholar: lookup
        17. WOLTER JR. [Langerhans' islands in the horse, with special reference to cell type].. Z Zellforsch Mikrosk Anat 1950;35(3-4):229-39.
          pubmed: 14789165
        18. Orci L, Unger RH. Functional subdivision of islets of Langerhans and possible role of D cells.. Lancet 1975 Dec 20;2(7947):1243-4.
          pubmed: 53729doi: 10.1016/s0140-6736(75)92078-4google scholar: lookup
        19. Lomský R, Langer F, Vortel V. Immunohistochemical demonstration of gastrin in mammalian islets of Langerhans.. Nature 1969 Aug 9;223(5206):618-9.
          pubmed: 4895130doi: 10.1038/223618a0google scholar: lookup

        Citations

        This article has been cited 16 times.
        1. Dybala MP, Butterfield JK, Hendren-Santiago BK, Hara M. Pancreatic Islets and Gestalt Principles. Diabetes 2020 Sep;69(9):1864-1874.
          doi: 10.2337/db20-0304pubmed: 32669392google scholar: lookup
        2. He C, Myers MA, Forbes BE, Grützner F. Immunohistochemical analysis of pancreatic islets of platypus (Ornithorhynchus anatinus) and echidna (Tachyglossus aculeatus ssp.). J Anat 2015 Apr;226(4):373-80.
          doi: 10.1111/joa.12279pubmed: 25682842google scholar: lookup
        3. Begg DP, Woods SC. Interactions between the central nervous system and pancreatic islet secretions: a historical perspective. Adv Physiol Educ 2013 Mar;37(1):53-60.
          doi: 10.1152/advan.00167.2012pubmed: 23471249google scholar: lookup
        4. Steiner DJ, Kim A, Miller K, Hara M. Pancreatic islet plasticity: interspecies comparison of islet architecture and composition. Islets 2010 May-Jun;2(3):135-45.
          doi: 10.4161/isl.2.3.11815pubmed: 20657742google scholar: lookup
        5. Lucini C, Castaldo L, Lai O, De Vico G. Ontogeny, postnatal development and ageing of endocrine pancreas in Bubalus bubalis. J Anat 1998 Apr;192 ( Pt 3)(Pt 3):417-24.
        6. Elayat AA, el-Naggar MM, Tahir M. An immunocytochemical and morphometric study of the rat pancreatic islets. J Anat 1995 Jun;186 ( Pt 3)(Pt 3):629-37.
          pubmed: 7559135
        7. Reinecke M. Immunohistochemical localization of polypeptide hormones in endocrine cells of the digestive tract of Branchiostoma lanceolatum. Cell Tissue Res 1981;219(3):445-56.
          doi: 10.1007/BF00209985pubmed: 7023687google scholar: lookup
        8. Rombout JH, Reinecke M. Immunohistochemical localization of (neuro)peptide hormones in endocrine cells and nerves of the gut of a stomachless teleost fish, Barbus conchonius (Cyprinidae). Cell Tissue Res 1984;237(1):57-65.
          doi: 10.1007/BF00229200pubmed: 6206950google scholar: lookup
        9. Feurle GE, Helmstaedter V, Buehring A, Bettendorf U, Eckardt VF. Distinct immunohistochemical findings in columnar epithelium of esophageal inlet patch and of Barrett's esophagus. Dig Dis Sci 1990 Jan;35(1):86-92.
          doi: 10.1007/BF01537228pubmed: 2295298google scholar: lookup
        10. Alumets J, Håkanson R, Sundler F. Distribution, ontogeny and ultrastructure of pancreatic polypeptide (PP) cells in the pancreas and gut of the chicken. Cell Tissue Res 1978 Dec 12;194(3):377-86.
          doi: 10.1007/BF00236159pubmed: 728970google scholar: lookup
        11. Alumets J, Sundler F, Håkanson R. Distribution, ontogeny and ultrastructure of somatostatin immunoreactive cells in the pancreas and gut. Cell Tissue Res 1977 Dec 28;185(4):465-79.
          doi: 10.1007/BF00220651pubmed: 342100google scholar: lookup
        12. Helmstaedter V, Feurle GE, Forssmann WG. Relationship of glucagon-somatostatin and gastrin-somatostatin cells in the stomach of the monkey. Cell Tissue Res 1977 Feb 2;177(1):29-46.
          doi: 10.1007/BF00221116pubmed: 319903google scholar: lookup
        13. Forssmann WG, Helmstaedter V, Metz J, Greenberg J, Chance RE. The identification of the F-cell in the dog pancreas as the pancreatic polypeptide producing cell. Histochemistry 1977 Feb 1;50(4):281-90.
          doi: 10.1007/BF00507121pubmed: 319086google scholar: lookup
        14. Alumets J, Ekelund M, El Munshid HA, Håkanson R, Lorén I, Sundler F. Topography of somatostatin cells in the stomach of the rat: possible functional significance. Cell Tissue Res 1979 Nov;202(2):177-88.
          doi: 10.1007/BF00232233pubmed: 229955google scholar: lookup
        15. Becker K, Wendel U, Przyrembel H, Tsotsalas M, Münterfering H, Bremer HJ. Beta cell nesidioblastosis. Eur J Pediatr 1978 Jan 17;127(2):75-89.
          doi: 10.1007/BF00445763pubmed: 203467google scholar: lookup
        16. Anger-Håål C, Fjordbakk CT, Ekstrand C, Skedsmo FS, Rørtveit R. Sodium-glucose transporters SGLT1 and SGLT2 in equine renal, hepatic and pancreatic tissue. BMC Vet Res 2025 Dec 17;22(1):36.
          doi: 10.1186/s12917-025-05173-1pubmed: 41408266google scholar: lookup