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Shyamal D. Desai, PhD
Assistant Professor

Department of Biochemistry & Molecular Biology
1901 Perdido Street, Box P7-2
New Orleans, LA 70112
504.568.4388
Office MEB 7107
Fax # 504.568.3370
sdesai@lsuhsc.edu

Dr. Desai was recently appointed as an Executive Editor
for the Journal of Antivirals & Antiretrovirals.

  Click here for a link to ongoing research in this laboratory

PhD - 1996
University of Medicine and Dentistry of New Jersey, Newark, NJ

Dr. Desai obtained her Bachelor of Science and Master of Science in Biochemistry from University of Bombay in 1981 and 1983 respectively.  She received her Doctorate in Biochemistry from the University of Bombay in 1991. From 1991 to 1996, Dr. Desai did a post-doctoral fellowship at the UMDNJ-Robert Wood Johnson Medical School in New Jersey. Since 1996, she was a faculty member in the Department of Pharmacology at the UMDNJ/RWJMS.  During her tenure there she made a novel finding that ISG15 (a UBL) is overexpressed in many tumor cells and its overexpression interferes with protein polyubiquitination and degradation.  She also worked on the repair of topoisomerase I (TOP1)-mediated DNA damage.  She showed that one of the repair mechanisms for TOP1-DNA covalent complexes is through the activation of the ubiquitin/26S proteasome pathway.  This novel repair mechanism is quite significant and may have implications in the resistance mechanism to the clinically used TOP1-directed anticancer drugs (e.g. Toptecan). In 2007, Dr. Desai joined the LSUHSC as Assistant Professor in the Department of Biochemistry &Molecular Biology.

 
  • The roles of ubiquitin and ubiquitin-like proteins in cancer.
  • Mechanism of tumor cell death and drug resistance.
  • The roles of ubiquitin and ubiquitin-like protein ISG15 in neurodegenerative diseases.
 

Lin CP, Ban Y, Lyu YL, Desai SD, Liu LF. A ubiquitin-proteasome pathway for the repair of Top1-DNA covalent complexes. J Biol Chem. May 30 2008.

Desai, S D Wood, L. J.,  Tsai, Y. C.,  Hsieh, T. S.,  Marks, J. R.,  Scott, G. L.,  Giovanella, B. C., and Liu, L. F. ISG15 as a Novel Tumor Biomarker for Drug Sensitivity.  In Press, 2008

Desai, S D, Haas, A. L., Wood, L. M., Tsai, Y, C., Pestka, S., Rubin, E. H., Saleem, A., Kamal, A. N., and Liu, L. F. Elevated expression of ISG15 in tumor cells inhibits protein degradation by 26S Proteasome. Cancer Res., 66: 921-8, 2006.

Desai, S D, Li, T. K., Rodriguez-Bauman, A., Rubin, E. H., and Liu, L. F. Ubiquitin/26S proteasome-mediated degradation of topoisomerase I as a resistance mechanism to camptothecin in tumor cells. Cancer Res., 61: 5926-5932, 2001.

Mao, Y., Sun, M., Desai, S D, and Liu, L. F. SUMO-1 conjugation to topoisomerase I: A possible repair response to topoisomerase-mediated DNA damage. Proc. Natl. Acad. Sci. U.S.A, 97: 4046-4051, 2000.

Mao, Y., Desai, S D, and Liu, L. F. SUMO-1 conjugation to human DNA topoisomerase II isozymes. J. Biol. Chem., 275: 26066-26073, 2000.
 
Desai, S D, Liu, L. F., Vazquez-Abad, D., and D'Arpa, P. Ubiquitin-dependent destruction of topoisomerase I is stimulated by the antitumor drug camptothecin. J. Biol. Chem., 272: 24159-24164, 1997.

To search for all of Dr. Desai's publications click here.

 

 

   

 

 


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