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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

Jul 26 2018 | Posted In: 20/20 Blog
San Francisco, CA — The majority of astronauts who travel in space for a prolonged period of time experience vision loss. Some vision problems are resolved after returning to earth, but others are irreversible.
Jul 12 2018 | Posted In: 20/20 Blog
Palo Alto, CA — Dr. Vinit Mahajan and Dr.
Jun 9 2018 | Posted In: 20/20 Blog, Press
Los Angeles, CA — Vinit Mahajan was the 16th Straatsma Lecturer at UCLA’s Department of Ophthalmology Annual Seminar held at the Stein Eye Institute.    
Feb 21 2018 | MD Magazine | Posted In: 20/20 Blog, Press
Understanding the distinct features of the fovea, macula, and periphery is crucial in the development of effective targeted treatment therapies for various conditions, including age-related macular degeneration (AMD), cystoid macular edema, retinitis pigmentosa, and diabetic retinopathy.
Dec 21 2017 | Stanford Report | Posted In: 20/20 Blog, Press
Researchers are studying proteins in the eye to find existing drugs that can treat a rare eye disease known as neovascular inflammatory vitreoretinopathy that causes blindness.

Publications

Proteomic analysis of the human retina reveals region-specific susceptibilities to metabolic-and oxidative stress-related diseases, Velez, Gabriel, Machlab Daniel A., Tang Peter H., Sun Yang, Tsang Stephen H., Bassuk Alexander G., and Mahajan Vinit B. , PloS one, Volume 13, p.e0193250, (2018)
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)
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)
Gene Therapy Restores Mfrp and Corrects Axial Eye Length, Velez, Gabriel, Tsang Stephen H., Tsai Yi-Ting, Hsu Chun-Wei, Gore Anuradha, Abdelhakim Aliaa H., Mahajan Maryann, Silverman Ronald H., Sparrow Janet R., Bassuk Alexander G., et al. , Scientific reports, Volume 7, p.16151, (2017)
Retinal and choroidal angiogenesis: a review of new targets, Cabral, Thiago, Mello Luiz Guilherme, Lima Luiz H., Polido Júlia, Regatieri Caio V., Belfort Rubens, and Mahajan Vinit B. , International journal of retina and vitreous, Volume 3, Number 1, p.31, (2017)
Personalized proteomics in proliferative vitreoretinopathy implicate hematopoietic cell recruitment and mTOR as a therapeutic target, C Roybal, Nathaniel, Velez Gabriel, Toral Marcus A., Tsang Stephen H., Bassuk Alexander G., and Mahajan Vinit B. , American journal of ophthalmology, (2017)