Proteomics

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Rat retina and optic nerve LC-MS/MS

ABSTRACT: Various retinal disorder such as glaucomatous, retinal ischemia reperfusion, and traumatic optic neuropathy, are involved in the pathogenesis of neurodegeneration via glutamate exicitotoxicity. However, the proteomic characteristics and modulation of the neural-microenvironment with NMDA-induced neurodegeneration in retina and optic nerve remain partly understood. We established a protein sketch of NMDA-induced injury by comparing the proteomes of the PBS-operated, NMDA-operated and control groups. We carried out mass spectrometry-based label-free quantitative proteomics to investigate the exicitotoxic neurodegeneration mechanisms and identify key proteins that regulated neural cell death related signaling pathway in retina and optic nerve spatially. Using LC-MS/MS proteomics analysis, in total, we identified 3532 proteins in retina, 2593 proteins in optic nerve. According to Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), the protein changes and energy metabolism in retina and optic nerve tissue were comprehensively evaluated.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Rattus Norvegicus (rat)

TISSUE(S): Optic Nerve, Retina

SUBMITTER: Lingge Suo  

LAB HEAD: Chun Zhang

PROVIDER: PXD022466 | Pride | 2021-12-30

REPOSITORIES: Pride

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Publications

Proteomics analysis of N-methyl-d-aspartate-induced cell death in retinal and optic nerves.

Suo Lingge L   Dai Wanwei W   Chen Xuhao X   Qin Xuejiao X   Li Guanlin G   Song Sijia S   Zhang Di D   Zhang Chun C  

Journal of proteomics 20211113

This study aimed to comprehensively understand the proteomic characteristics and modulation of the neural microenvironment with N-methyl-d-aspartate (NMDA)-induced neuronal degeneration in the retina and optic nerve at 12 h after intravitreal injection of 40 nmol NMDA. Male Sprague-Dawley rats were sacrificed at 12 h after intravitreal injection of 40 nmol NMDA. PBS-injected eyes served as controls. The key cell death-linked proteins from the retina and optic nerve tissues were assessed by a mas  ...[more]

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