PMID- 18585018 OWN - NLM STAT- MEDLINE DCOM- 20081023 LR - 20080901 IS - 0940-2993 (Print) IS - 0940-2993 (Linking) VI - 60 IP - 6 DP - 2008 Sep TI - Expression of neurotrophic factors in human primary pterygeal tissue and selective TNF-alpha-induced stimulation of ciliary neurotrophic factor in pterygeal fibroblasts. PG - 513-20 LID - 10.1016/j.etp.2008.04.013 [doi] AB - Pterygium is a degenerative, fibrovascular and hyperplastic growth resulting from a proliferative tissue actively growing from altered limbal stem cells at the corneal-conjunctival junction. However, the pathogenesis of pterygium is still unclear. The aim of this study was to determine the expression of neurotrophic factors (nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), ciliary neurotrophic factor (CNTF), and neurotrophin (NT)-3, NT-4/5) in pterygeal tissue and to confirm whether tumor-necrosis factor-alpha (TNF-alpha) modulates the expression of these neurotrophic factors in primary cultured pterygeal fibroblasts. We looked for expression of these neurotrophic factors in surgically excised pterygia and normal donor limbal tissues by immunohistochemistry and in primary cultured pterygeal and normal subconjunctival Tenon's fibroblasts by Western blot and reverse transcription-polymerase chain reaction (RT-PCR). Expression of CNTF and NT-4/5 is increased in pterygeal tissues compared with normal tissue, and production of CNTF is stimulated in pterygeal fibroblasts by TNF-alpha but not in normal fibroblasts. This selective stimulation of CNTF in pterygeal fibroblasts suggests that CNTF may play a role in the pathogenesis of pterygium. FAU - Hong, Samin AU - Hong S AD - Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Choi, Jin Young AU - Choi JY FAU - Lee, Hyung Keun AU - Lee HK FAU - Seong, Gong Je AU - Seong GJ FAU - Seo, Kyoung Yul AU - Seo KY FAU - Kim, Eung-Kweon AU - Kim EK FAU - Byeon, Suk Ho AU - Byeon SH LA - eng PT - Journal Article DEP - 20080626 PL - Germany TA - Exp Toxicol Pathol JT - Experimental and toxicologic pathology : official journal of the Gesellschaft fur Toxikologische Pathologie JID - 9208920 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Ciliary Neurotrophic Factor) RN - 0 (Nerve Growth Factors) RN - 0 (RNA, Messenger) RN - 0 (Recombinant Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 9061-61-4 (Nerve Growth Factor) SB - IM MH - Brain-Derived Neurotrophic Factor/genetics/metabolism MH - Cells, Cultured MH - Ciliary Neurotrophic Factor/genetics/metabolism MH - Fibroblasts/drug effects/*metabolism/pathology MH - Gene Expression/drug effects MH - Humans MH - Limbus Corneae/cytology/drug effects/metabolism MH - Nerve Growth Factor/genetics/metabolism MH - Nerve Growth Factors/genetics/*metabolism MH - Pterygium/drug therapy/*metabolism/pathology MH - RNA, Messenger/metabolism MH - Recombinant Proteins/pharmacology MH - Tumor Necrosis Factor-alpha/*pharmacology EDAT- 2008/07/01 09:00 MHDA- 2008/10/24 09:00 CRDT- 2008/07/01 09:00 PHST- 2008/03/10 00:00 [received] PHST- 2008/04/11 00:00 [revised] PHST- 2008/04/15 00:00 [accepted] PHST- 2008/07/01 09:00 [pubmed] PHST- 2008/10/24 09:00 [medline] PHST- 2008/07/01 09:00 [entrez] AID - S0940-2993(08)00085-7 [pii] AID - 10.1016/j.etp.2008.04.013 [doi] PST - ppublish SO - Exp Toxicol Pathol. 2008 Sep;60(6):513-20. doi: 10.1016/j.etp.2008.04.013. Epub 2008 Jun 26.