PMID- 16135988 OWN - NLM STAT- MEDLINE DCOM- 20060324 LR - 20190727 IS - 1528-1159 (Electronic) IS - 0362-2436 (Linking) VI - 30 IP - 17 DP - 2005 Sep 1 TI - Expression of transforming growth factor and basic fibroblast growth factor and core protein of proteoglycan in human vertebral cartilaginous endplate of adolescent idiopathic scoliosis. PG - 1973-8 AB - STUDY DESIGN: To compare the expression of cytokines and core protein of proteoglycan in the scoliotic concave and convex cartilaginous endplate using immunohistochemical staining. OBJECTIVES: To define the possible role of transforming growth factor beta 1 (TGFbeta1), basic fibroblast growth factor (bFGF), and core protein of proteoglycan in the development of adolescent idiopathic scoliosis. SUMMARY OF BACKGROUND DATA: Changes in the endplate composition have been implicated as possible etiologic factors in the pathogenesis of adolescent idiopathic scoliosis. Cytokines have exclusive effects on cartilage. Thus comparing the expression of the cytokines and matrix on the convex and concave sides of scoliotic endplate tissues may help to understand the role of endplate tissues in the induction and/or progression of idiopathic scoliosis. METHODS: The convex and concave half of cartilage endplate was collected at the apex and end vertebrae from 12 patients. The expression of TGFbeta1, bFGF, and core protein on both sides was examined with the immunohistochemistry method, and results were analyzed with the image analysis system. RESULTS: TGFbeta1, bFGF, and core protein of proteoglycan were all expressed in the cytoplasm of chondrocytes in the cartilaginous endplate. The area density and quantity density of TGFbeta1 and bFGF on the concave side are expressed in an even significantly higher level than that on the convex side (P > or = 0.05). The expression of the core protein of proteoglycan on the convex side is higher than that on the concave side, the difference is not significant (P > 0.05). CONCLUSION: There was a significantly higher expression of TGFbeta1 and bFGF, although a lower expression of the core protein on the concave side, which suggests a possible etiological factor or a secondary change in the development of adolescent idiopathic scoliosis. FAU - Xu, Hongguang AU - Xu H AD - Department of Orthopedic Surgery, Peking Union Medical College Hospital, Beijing, People's Republic of China. xuhg@medmail.com.cn FAU - Qiu, Guixihg AU - Qiu G FAU - Wu, Zhihong AU - Wu Z FAU - Wang, Yipeng AU - Wang Y FAU - Zhang, Jianguo AU - Zhang J FAU - Liu, Yong AU - Liu Y FAU - Yang, Xinyu AU - Yang X LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Spine (Phila Pa 1976) JT - Spine JID - 7610646 RN - 0 (Aggrecans) RN - 0 (Chondroitin Sulfate Proteoglycans) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Lectins, C-Type) RN - 0 (Proteoglycans) RN - 0 (TGFB1 protein, human) RN - 0 (Transforming Growth Factor beta) RN - 0 (Transforming Growth Factor beta1) RN - 103107-01-3 (Fibroblast Growth Factor 2) SB - IM MH - Adolescent MH - Adult MH - Aggrecans MH - Cartilage, Articular/*metabolism/pathology MH - Child MH - Chondrocytes/metabolism MH - Chondroitin Sulfate Proteoglycans/*metabolism MH - Cytoplasm/metabolism MH - Extracellular Matrix Proteins/*metabolism MH - Female MH - Fibroblast Growth Factor 2/*metabolism MH - Humans MH - Immunohistochemistry/methods MH - Lectins, C-Type/*metabolism MH - Male MH - Proteoglycans/*metabolism MH - Scoliosis/*metabolism/pathology MH - Spine/*metabolism MH - Staining and Labeling MH - Tissue Distribution MH - Transforming Growth Factor beta/*metabolism MH - Transforming Growth Factor beta1 EDAT- 2005/09/02 09:00 MHDA- 2006/03/25 09:00 CRDT- 2005/09/02 09:00 PHST- 2005/09/02 09:00 [pubmed] PHST- 2006/03/25 09:00 [medline] PHST- 2005/09/02 09:00 [entrez] AID - 00007632-200509010-00011 [pii] AID - 10.1097/01.brs.0000176445.01967.8a [doi] PST - ppublish SO - Spine (Phila Pa 1976). 2005 Sep 1;30(17):1973-8. doi: 10.1097/01.brs.0000176445.01967.8a.