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Platelet rich plasma (PRP) enhances anabolic gene expression patterns in flexor digitorum superficialis tendons.

Abstract: Platelet rich plasma (PRP) has recently been investigated for use in tissue regeneration studies that seek to utilize the numerous growth factors released from platelet alpha-granules. This study examined gene expression patterns, DNA, and collagen content of equine flexor digitorum superficialis tendon (SDFT) explants cultured in media consisting of PRP and other blood products. Blood and bone marrow aspirate (BMA) were collected from horses and processed to obtain plasma, PRP, and platelet poor plasma (PPP). IGF-I, TGF-beta1, and PDGF-BB were quantified in all blood products using ELISA. Tendons were cultured in explant fashion with blood, plasma, PRP, PPP, or BMA at concentrations of 100%, 50%, or 10% in serum-free DMEM with amino acids. Quantitative RT-PCR for expression of collagen type I (COL1A1), collagen type III (COL3A1), cartilage oligomeric matrix protein (COMP), decorin, matrix metalloproteinase-3 (MMP-3), and matrix metalloproteinase-13 (MMP-13) was performed as were DNA and total soluble collagen assays. TGF-beta1 and PDGF-BB concentrations were higher in PRP compared to all other blood products tested. Tendons cultured in 100% PRP showed enhanced gene expression of the matrix molecules COL1A1, COL3A1, and COMP with no concomitant increase in the catabolic molecules MMP-3 and MMP-13. These findings support in vivo investigation of PRP as an autogenous, patient-side treatment for tendonitis.
Publication Date: 2006-11-16 PubMed ID: 17106885DOI: 10.1002/jor.20278Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

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 research investigated how platelet rich plasma (PRP) can enhance the expressions of anabolic genes in equine flexor digitorum superficialis tendons, potentially supporting PRP’s use in treating tendonitis.

Introduction and Methodology

  • This investigation focused on the use of Platelet-Rich Plasma (PRP) in tissue regeneration, leveraging the rich supply of growth factors released from platelet alpha granules. PRP, along with other blood products, were examined in relation to the gene expression patterns, DNA and collagen content of equine flexor digitorum superficialis tendon (SDFT) explants.
  • Aside from PRP, other blood derivatives like plasma, platelet poor plasma (PPP), and bone marrow aspirate (BMA) were harvested from the horses. These were prepared in a medium of serum-free DMEM with amino acids.
  • The research quantified the presence of growth factors IGF-I, TFG-beta1, and PDGF-BB in all the tested blood products using the Enzyme-Linked Immunosorbent Assay (ELISA) technique.
  • Finally, the tendons were cultured in explant fashion with these blood products at varying concentrations namely 100%, 50%, and 10%.

Key Findings

  • The results revealed that TGF-beta1 and PDGF-BB concentrations were higher in PRP when compared to the other blood products tested.
  • The tendons cultured in 100% PRP exhibited an elevated gene expression of matrix molecules like collagen type I (COL1A1), collagen type III (COL3A1), and cartilage oligomeric matrix protein (COMP).
  • Interestingly, the enhanced gene expression did not cause an increase in catabolic molecules such as matrix metalloproteinase-3 (MMP-3) and matrix metalloproteinase-13 (MMP-13).
  • This supports the anabolic (building) rather than catabolic (breaking down) effect of PRP on tendon tissues.

Significance of the Research

  • The findings from this research provide a promising foundation for further in vivo investigations of PRP as a patient-side treatment for tendonitis.
  • The elevated gene expression of key matrix molecules in the presence of PRP suggests that PRP application may assist in the therapeutic recovery of damaged tissues in tendonitis.

Overall, the application of PRP appears to offer beneficial effects that support tissue regeneration and recovery, specifically in the context of tendon injuries, paving the way for subsequent studies on the potential use of PRP in healing and recovery modalities.

Cite This Article

APA
Schnabel LV, Mohammed HO, Miller BJ, McDermott WG, Jacobson MS, Santangelo KS, Fortier LA. (2006). Platelet rich plasma (PRP) enhances anabolic gene expression patterns in flexor digitorum superficialis tendons. J Orthop Res, 25(2), 230-240. https://doi.org/10.1002/jor.20278

Publication

ISSN: 0736-0266
NlmUniqueID: 8404726
Country: United States
Language: English
Volume: 25
Issue: 2
Pages: 230-240

Researcher Affiliations

Schnabel, Lauren V
  • Department of Clinical Sciences, VMC C3-181, Cornell University, Ithaca, New York 14853, USA.
Mohammed, Hussni O
    Miller, Brian J
      McDermott, William G
        Jacobson, May S
          Santangelo, Kelly S
            Fortier, Lisa A

              MeSH Terms

              • Animals
              • Becaplermin
              • Collagen / genetics
              • Collagen / metabolism
              • DNA / genetics
              • DNA / metabolism
              • Dose-Response Relationship, Drug
              • Extracellular Matrix Proteins / genetics
              • Extracellular Matrix Proteins / metabolism
              • Gene Expression Regulation / physiology
              • Glycoproteins / genetics
              • Glycoproteins / metabolism
              • Horses
              • Insulin-Like Growth Factor I / genetics
              • Insulin-Like Growth Factor I / metabolism
              • Matrilin Proteins
              • Metabolism / genetics
              • Metabolism / physiology
              • Platelet-Derived Growth Factor / genetics
              • Platelet-Derived Growth Factor / metabolism
              • Platelet-Rich Plasma / physiology
              • Proto-Oncogene Proteins c-sis
              • RNA, Messenger / genetics
              • RNA, Messenger / metabolism
              • Tendinopathy / drug therapy
              • Tendons / metabolism
              • Tissue Culture Techniques
              • Transforming Growth Factor beta1 / genetics
              • Transforming Growth Factor beta1 / metabolism

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