Molecular and Cellular Biochemistry

, Volume 361, Issue 1–2, pp 9–17 | Cite as

Time-sequential modulation in expression of growth factors from platelet-rich plasma (PRP) on the chondrocyte cultures

  • Se-Il Park
  • Hye-Rim Lee
  • Sukyoung Kim
  • Myun-Whan Ahn
  • Sun Hee DoEmail author


Platelets are involved in hemostasis, wound healing, and tumor growth. Autologous blood products are commonly used to facilitate healing in a variety of clinical surgery applications. Recently, it was shown that platelet-rich plasma (PRP) has more specific growth factors that participate in the healing process. This study investigated the expression of PRP growth factors and evaluated their potential role in the cartilage regeneration using primary isolated chondrocytes. PRP obtained from New Zealand White rabbit by low speed centrifugation. Extracted PRPs contained 6–10 × 106 platelet/μl and concentration of platelets was slightly variable. Primary isolated chondrocytes from the same rabbits were cultured and treated with 0.1–20% PRP. The cells were collected and examined by reverse transcription-polymerase chain reaction and cytochemical staining. The expression of sex determining region Y-box 9, transforming growth factor-beta, vascular endothelial growth factor, and chondromdulin-I was increased in chondrocyte cultures with 10% PRP by time-dependent manner. To maintain the integrity of the cartilage, the proteoglycan contents were also up-regulated from the mRNA of aggrecan and positive Safranin-O staining in PRP concentration- and time-dependent manner. PRP provides crucial growth factors related to chondrocyte proliferation and differentiation through time-sequential modulation. Controlled in vivo trials for cartilage regeneration are needed.


Platelet-rich plasma Growth factor Time-sequential modulation Chondrocyte 



This study was supported by grants of the Nano-Biotechnology Project (Regenomics), Ministry of Science and Technology, Republic of Korea (B020214) and the National Research Foundation of Korea Grant, Ministry of Education, Science and Technology, Korean Government (NRF-2009-351-E00060).


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Copyright information

© Springer Science+Business Media, LLC. 2011

Authors and Affiliations

  • Se-Il Park
    • 1
  • Hye-Rim Lee
    • 2
  • Sukyoung Kim
    • 3
  • Myun-Whan Ahn
    • 1
  • Sun Hee Do
    • 2
    Email author
  1. 1.Department of Orthopedic Surgery, College of MedicineYeungnam UniversityDaeguKorea
  2. 2.Department of Clinical Pathology, College of Veterinary MedicineKonkuk UniversitySeoulKorea
  3. 3.School of Materials Science and EngineeringYeungnam UniversityGyeongsanKorea

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