PMID- 23018248 OWN - NLM STAT- MEDLINE DCOM- 20130314 LR - 20170123 IS - 1699-5848 (Electronic) IS - 0213-3911 (Linking) VI - 27 IP - 11 DP - 2012 Nov TI - Expression of matricellular proteins in human uterine leiomyomas and normal myometrium. PG - 1495-502 LID - 10.14670/HH-27.1495 [doi] AB - Growth of human leiomyomas can probably be initiated as a response to injury, in a way similar to the development of keloids. Among many bioactive molecules, which are implicated in tissue repair, a pivotal role is attributed to matricellular proteins. The aim of the current study was to evaluate the immunohistochemical expression of tenascin-C (TNC), thrombospondin-1 (TSP-1), SPARC/osteonectin and tenascin-X (TNX) in human uterine leiomyomas and normal myometrium. Immunostaining was performed on 33 pairs of paraffin-fixed sections and 9 cell-lines derived from uterine leiomyomas and normal myometrium. Fifteen (45.5%) leiomyomas investigated were positive for TNC, whereas all normal myometrial samples were immunonegative (chi(2)=19.41; p<0.001). Immunostaining for TSP-1 was observed in 20 (60.6%) uterine fibroids and in 12 (36.4%) control samples (chi(2)=3.88; p<0.05). The expression of SPARC/osteonectin protein was more frequently found in leiomyomas than in normal myometrium, but this difference was not significant. Apart from one fibroid culture and one myometrial culture, all the others revealed strong TNC immunostaining. Expression of TSP-1 and SPARC/osteonectin was weak to moderate in all established cell-lines. None of the tissues or cell lines investigated showed positive staining for TNX. In conclusion, TSP-1 and TNC are likely to play important roles in the pathogenesis of uterine leiomyomas, presumably affecting cell proliferation and/or extracellular matrix deposition. FAU - Bogusiewicz, Michal AU - Bogusiewicz M AD - 2nd Department of Gynecology, Medical University of Lublin, Lublin, Poland. FAU - Semczuk, Andrzej AU - Semczuk A FAU - Juszczak, Malgorzata AU - Juszczak M FAU - Langner, Ewa AU - Langner E FAU - Walczak, Katarzyna AU - Walczak K FAU - Rzeski, Wojciech AU - Rzeski W FAU - Tomaszewski, Jacek AU - Tomaszewski J FAU - Rechberger, Tomasz AU - Rechberger T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Spain TA - Histol Histopathol JT - Histology and histopathology JID - 8609357 RN - 0 (Biomarkers, Tumor) RN - 0 (Osteonectin) RN - 0 (Tenascin) RN - 0 (Thrombospondin 1) RN - 0 (tenascin X) SB - IM MH - Adult MH - Biomarkers, Tumor/*metabolism MH - Female MH - Humans MH - Leiomyoma/*metabolism/pathology MH - Middle Aged MH - Myometrium/*metabolism/pathology MH - Osteonectin/metabolism MH - Tenascin/metabolism MH - Thrombospondin 1/metabolism MH - Uterine Neoplasms/*metabolism/pathology EDAT- 2012/09/29 06:00 MHDA- 2013/03/15 06:00 CRDT- 2012/09/29 06:00 PHST- 2012/09/29 06:00 [entrez] PHST- 2012/09/29 06:00 [pubmed] PHST- 2013/03/15 06:00 [medline] AID - 10.14670/HH-27.1495 [doi] PST - ppublish SO - Histol Histopathol. 2012 Nov;27(11):1495-502. doi: 10.14670/HH-27.1495.