Hilber, Franz and Loibl, Markus and Lang, Siegmund and Kerschbaum, Maximilian and Brockhoff, Gero and Angele, Peter and Zellner, Johannes and Schmitz, Paul and Nerlich, Michael and Worlicek, Michael (2017) Leukocyte-reduced platelet-rich plasma increases proliferation of tenocytes treated with prednisolone: a cell cycle analysis. ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY, 137 (10). pp. 1417-1422. ISSN 0936-8051, 1434-3916
Full text not available from this repository. (Request a copy)Abstract
The purpose of this study was to evaluate the effect of allogenic leukocyte-reduced platelet-rich plasma on human tenocytes after treatment with prednisolone and to develop a standardization of its application for clinical practice. A leukocyte-reduced PRP was produced using the Arthrex Double Syringe (Arthrex, Inc., Naples, FL, USA), in a modified single-spin separation method. Human tenocytes were isolated from discarded rotator cuff segments. Tenocytes were cultured in the presence of PRP and prednisolone, both alone and in combination. Control samples were treated in media containing 2% FCS for 72 h. After 72 h of incubation, cell cycle kinetics of tenocytes were analyzed to assess proliferation. Incubation of the tenocytes with PRP alone for 48 h led to high proliferation rate (10% PRP, 28.0 +/- 10.5%; 20% PRP, 40.9 +/- 3.3%). Incubation in the presence of prednisolone led to a significant decrease of the proliferation rate (5.2 +/- 3.1%; p < 0.05). Treatment with PRP for 48 h significantly increased the proliferation of tenocytes in a dose-dependent manner (10% PRP, 28.0 +/- 10.5%; 20% PRP, 40.9 +/- 3.3%; p < 0.05). The presence of prednisolone resulted in a decreased tenocyte proliferation (5.2 +/- 3.1%; p < 0.05), whereas addition of PRP for 24 and 48 h after prednisolone exposure did not show any compensating effect independent of PRPs concentration (10% PRP, 3.7 +/- 3.0%; 20% PRP, 2.5 +/- 2.5%). However, a significantly increased cell proliferation of tenocytes was evident when PRP was applied 24 h after prednisolone incubation for 48 h (31.0 +/- 3.4 and 34.3 +/- 4.7%). The use of leukocyte-reduced PRP stimulates the proliferation of tenocytes and antagonizes the negative effect of prednisolone 24 h after treatment. Addition of PRP 48 h after treatment with prednisolone has no positive effect on the proliferation rate of tenocytes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HUMAN ROTATOR CUFF; IN-VITRO EVALUATION; HUMAN TENDON CELLS; METHYLPREDNISOLONE; CORTICOSTEROIDS; INJECTIONS; KETOROLAC; SURGERY; CULTURE; BONE; Tenocytes; Platelet-rich plasma; Corticosteroids |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Unfallchirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:19 |
| Last Modified: | 19 Feb 2019 08:34 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2140 |
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