PMID- 25014768 OWN - NLM STAT- MEDLINE DCOM- 20150522 LR - 20140827 IS - 1742-2051 (Electronic) IS - 1742-2051 (Linking) VI - 10 IP - 10 DP - 2014 Oct TI - Vitreous proteomic analysis of idiopathic epiretinal membranes. PG - 2558-66 LID - 10.1039/c4mb00240g [doi] AB - To understand the molecular mechanisms of idiopathic epiretinal membranes (iERMs), the vitreous proteomes of patients with iERMs were investigated. The vitreous proteome in patients with iERMs (n = 8) and donor samples (n = 8) was analysed using reversed phase high-performance liquid chromatography (RP-HPLC) coupled with electrospray ionization tandem mass spectrometry (ESI-MS/MS) and GeneGo Metacore. This research followed the tenets of the Declaration of Helsinki for the use of human subjects. In this current study, 226 significant changes in protein abundance (abundance ratio >2, p < 0.01) were identified in the vitreous proteome of iERM patients compared to normal control vitreous, including 122 proteins that were present at lower levels and 104 proteins that were present at higher levels. In the iERM vitreous samples, complement components, inflammation-related proteins and matrix metalloproteinase were present at higher levels, while normal cytoskeleton proteins were present at lower levels. The top GeneGo pathway was "immune response", the top process network was "inflammation", and the top KEGG pathway was "coagulation cascades". The essential 2-node proteins of the network were estrogen receptor 1 (ESR1) and p300. Among those found at higher levels, ubiquitin-conjugating enzyme E2O (UBE2O) and complement C4A (C4A) were the most abundant proteins, and could be detected in each of the iERM vitreous samples. It can be concluded that iERMs are a complicated pathological process involving inflammation, immune response, and cytoskeleton remolding. UBE2O and C4A may be candidate biomarkers for iERMs. FAU - Yu, Jing AU - Yu J AD - Department of Ophthalmology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P. R. China. dryujing@aliyun.com. FAU - Feng, Le AU - Feng L FAU - Wu, Yan AU - Wu Y FAU - Wang, Hao AU - Wang H FAU - Ba, Jun AU - Ba J FAU - Zhu, Wei AU - Zhu W FAU - Xie, Chunlei AU - Xie C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Mol Biosyst JT - Molecular bioSystems JID - 101251620 RN - 0 (Proteome) SB - IM MH - Aged MH - Computational Biology MH - Databases, Protein MH - Epiretinal Membrane/*metabolism MH - Female MH - Humans MH - Male MH - Middle Aged MH - Protein Interaction Maps MH - *Proteome MH - *Proteomics/methods MH - Reproducibility of Results MH - Signal Transduction MH - Vitreous Body/*metabolism EDAT- 2014/07/12 06:00 MHDA- 2015/05/23 06:00 CRDT- 2014/07/12 06:00 PHST- 2014/07/12 06:00 [entrez] PHST- 2014/07/12 06:00 [pubmed] PHST- 2015/05/23 06:00 [medline] AID - 10.1039/c4mb00240g [doi] PST - ppublish SO - Mol Biosyst. 2014 Oct;10(10):2558-66. doi: 10.1039/c4mb00240g.