Novel Regulators of Retina Neovascularization: A Proteomics Approach
Manhong Xu, Yilin Jiang, Lin Su, Xin Chen, Xianfeng Shao, Vicki Ea, Zhenying Shang, Xiaomin Zhang, Colin J. Barnstable, Xiaorong Li, Joyce Tombran‐Tink
Abstract
≤ 0.05), with several validated by western blot analyses. Expressions of 56/69 neovascular-specific proteins were confirmed in hypoxic HRECs with 23 regulated in the same direction as OIR neovascular retinas. These proteins control angiogenesis-related processes including matrix remodeling, cell migration, adhesion, and proliferation. RNAi and transfection overexpression studies confirmed that VASP and ECH1, showing the highest levels in hypoxic HRECs, promoted human umbilical vein (HUVEC) and HREC cell proliferation, while SNX1 and CD109, showing the lowest levels, inhibited their proliferation. These proteins are potential biomarkers and exploitable intervention tools for vascular-related disorders. The proteomics data set generated has been deposited to the ProteomeXchange/iProX Consortium with the Identifier:PXD029208.