PMID- 23189160 OWN - NLM STAT- MEDLINE DCOM- 20130516 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 7 IP - 11 DP - 2012 TI - Extracorporeal Shock Wave Treatment (ESWT) improves in vitro functional activities of ruptured human tendon-derived tenocytes. PG - e49759 LID - 10.1371/journal.pone.0049759 [doi] LID - e49759 AB - In vitro models of human tenocytes derived from healthy as well as from ruptured tendons were established, characterized and used at very early passage (P1) to evaluate the effects of Extracorporeal Shock Wave Treatment (ESWT). The molecular analysis of traditional tenocytic markers, including Scleraxis (Scx), Tenomodulin (Tnm), Tenascin-C (Tn-C) and Type I and III Collagens (Col I and Col III), permitted us to detect in our samples the simultaneous expression of all these genes and allowed us to compare their levels of expression in relationship to the source of the cells and treatments. In untreated conditions, higher molecular levels of Scx and Col I in tenocytes from pathological compared to healthy samples have been detected, suggesting--in the cells from injured tendon--the natural trigger of an early differentiation and repairing program, which depends by Scx and requires an increase in collagen expression. When ESWT (at the dose of 0.14 mJ/mm(2)) was applied to cultured tenocytes explanted from injured source, Scx and Col I were significantly diminished compared to healthy counterpart, indicating that such natural trigger maybe delayed by the treatment, in order to promote cellular repair. Herein, we show for the first time that ESWT enhances in vitro functional activities of ruptured tendon-derived tenocytes, such as proliferation and migration, which could probably contributes to tendon healing in vivo. FAU - Leone, Laura AU - Leone L AD - Department of Clinical and Molecular Medicine, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy. FAU - Vetrano, Mario AU - Vetrano M FAU - Ranieri, Danilo AU - Ranieri D FAU - Raffa, Salvatore AU - Raffa S FAU - Vulpiani, Maria Chiara AU - Vulpiani MC FAU - Ferretti, Andrea AU - Ferretti A FAU - Torrisi, Maria Rosaria AU - Torrisi MR FAU - Visco, Vincenzo AU - Visco V LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121126 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Basic Helix-Loop-Helix Transcription Factors) RN - 0 (SCX protein, human) RN - 0 (Tenascin) RN - 9007-34-5 (Collagen) SB - IM MH - Adolescent MH - Adult MH - Basic Helix-Loop-Helix Transcription Factors/metabolism MH - Cells, Cultured MH - Collagen/metabolism MH - Female MH - Humans MH - Male MH - Middle Aged MH - Primary Cell Culture MH - Tenascin/metabolism MH - Tendon Injuries/*metabolism/therapy MH - Tendons/*cytology/*metabolism MH - Young Adult PMC - PMC3506633 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2012/11/29 06:00 MHDA- 2013/05/17 06:00 PMCR- 2012/11/26 CRDT- 2012/11/29 06:00 PHST- 2012/08/07 00:00 [received] PHST- 2012/10/11 00:00 [accepted] PHST- 2012/11/29 06:00 [entrez] PHST- 2012/11/29 06:00 [pubmed] PHST- 2013/05/17 06:00 [medline] PHST- 2012/11/26 00:00 [pmc-release] AID - PONE-D-12-23951 [pii] AID - 10.1371/journal.pone.0049759 [doi] PST - ppublish SO - PLoS One. 2012;7(11):e49759. doi: 10.1371/journal.pone.0049759. Epub 2012 Nov 26.