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Proteomics Lab

Proteomics is the culmination of advances in chemistry, physics, bioinformatics, and molecular biology that allow the study of thousands of proteins simultaneously. A proteome can be defined as the complete set of proteins expressed in a particular cell or tissue of interest. This strategy is especially important in eye diseases where there are limited cell and animal models.

We are using proteomics to discover biomarkers, therapeutic targets, and molecular pathways involved in several eye diseases where diagnosis is difficult and current treatment is inadequate.

Projects

A multi-institution precision health consortium for collecting ophthalmic surgical samples.

We are using proteomics to study the vitreous fluid from eyes with ADNIV.

A proteome can be defined as the complete set of proteins expressed in a particular cell or tissue of interest.

The vitreous is an optically clear, collagenous extracellular matrix that fills the inside of the eye and overlies the retina.

News

Jun 28 2021 | Posted In: 20/20 Blog
Palo Alto, CA ­— Jennifer Vu, a recent Stanford graduate and researcher in the Mahajan Lab, earned the 2021 Oral Communication Program Excellence in Honors Thesis Presentation Award. 
May 6 2021 | Posted In: 20/20 Blog
Palo Alto, CA — Most people today, including many physicians, see the hypodermic needle as a mundane instrument that isn’t worth a second thought. This is not so for eye surgeons.
Apr 4 2021 | Posted In: 20/20 Blog, Awards
Palo Alto, CA —Young Joo Sun Ph.D., postdoctoral fellow in the Mahajan Lab, received a grant from the Brightfocus Foundation to study a key protein involved in macular degeneration.
Apr 1 2021 | Posted In: 20/20 Blog
Palo Alto, CA —Through funding from The Cancer League, a local cancer charity, Prithvi Mruthyunjaya MD, MHS and  Vinit Mahajan MD, PhD

Publications

Proteomic analysis of intermediate uveitis suggests myeloid cell recruitment and implicates IL-23 as a therapeutic target., Sepah, Yasir J., Velez Gabriel, Tang Peter H., Yang Jing, Chemudupati Teja, Li Angela S., Nguyen Quan D., Bassuk Alexander G., and Mahajan Vinit B. , Am J Ophthalmol Case Rep, 2020 Jun, Volume 18, p.100646, (2020)
Metabolite therapy guided by liquid biopsy proteomics delays retinal neurodegeneration., Wert, Katherine J., Velez Gabriel, Kanchustambham Vijaya L., Shankar Vishnu, Evans Lucy P., Sengillo Jesse D., Zare Richard N., Bassuk Alexander G., Tsang Stephen H., and Mahajan Vinit B. , EBioMedicine, 2020 Feb 03, Volume 52, p.102636, (2020)
Molecular Surgery: Proteomics of a Rare Genetic Disease Gives Insight into Common Causes of Blindness., Velez, Gabriel, and Mahajan Vinit B. , iScience, 2020 Nov 20, Volume 23, Issue 11, p.101667, (2020)
Bevacizumab injection in patients with neovascular age-related macular degeneration increases angiogenic biomarkers, Cabral, Thiago, Lima Luiz H., Mello Luiz Guilherme, Polido Júlia, Correa Éverton P., Oshima Akiyoshi, Duong Jimmy, Serracarbassa Pedro, Regatieri Caio V., Mahajan Vinit B., et al. , Ophthalmology Retina, Volume 2, p.31–37, (2018)
Personalized Proteomics for Precision Health: Identifying Biomarkers of Vitreoretinal Disease., Velez, Gabriel, Tang Peter H., Cabral Thiago, Cho Galaxy Y., Machlab Daniel A., Tsang Stephen H., Bassuk Alexander G., and Mahajan Vinit B. , Transl Vis Sci Technol, 2018 Sep, Volume 7, Issue 5, p.12, (2018)
HTRA1, an age-related macular degeneration protease, processes extracellular matrix proteins EFEMP1 and TSP1, Lin, Michael K., Yang Jin, Hsu Chun Wei, Gore Anuradha, Bassuk Alexander G., Brown Lewis M., Colligan Ryan, Sengillo Jess D., Mahajan Vinit B., and Tsang Stephen H. , Aging Cell, 05/2018, (2018)