Proteomic analyses of retina of excitatory amino acid carrier 1 deficient mice

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Abstract

Background: Excitatory amino acid carrier 1 (EAAC1) is a glutamate transporter found in neuronal tissues and is extensively expressed in the retina. EAAC1 plays a role in a variety of neural functions, but its biological functions in the retina has not been fully determined. The purpose of this study was to identify proteins regulated by EAAC1 in the retina of mice. To accomplish this, we used a proteomics-based approach to identify proteins that are up- or down-regulated in EAAC1-deficient (EAAC1-/-) mice. Results: Proteomic analyses and two-dimensional gel electorphoresis were performed on the retina of EAAC1-/- mice, and the results were compared to that of wild type mice. The protein spots showing significant differences were selected for identification by mass spectrometric analyses. Thirteen proteins were differentially expressed; nine proteins were up-regulated and five proteins were down-regulated in EAAC1-/- retina. Functional clustering showed that identified proteins are involved in various cellular process, e.g. cell cycle, cell death, transport and metabolism. Conclusion: We identified thirteen proteins whose expression is changed in EAAC-/- mice retinas. These proteins are known to regulate cell proliferation, death, transport, metabolism, cell organization and extracellular matrix. © 2007 Okumichi et al; licensee BioMed Central Ltd.

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Okumichi, H., Kanamoto, T., Souchelnytskyi, N., Tanimoto, S., Tanaka, K., & Kiuchi, Y. (2007). Proteomic analyses of retina of excitatory amino acid carrier 1 deficient mice. Proteome Science, 5. https://doi.org/10.1186/1477-5956-5-13

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