Developmental Therapeutics Research interests: Tumor suppressor functions of the butyrate transporter, SLC5A8, and the butyrate receptor, GPR109A, and mechanisms that regulate them in breast cancer 1120 15th Street CB 2105 Augusta, GA 30912 Office: (706) 721-4219 E-mail:

Thangaraju, Muthusamy, Ph.D.

Muthusamy Thangaraju, PhD

1120 15th Street
CN 1161
Augusta, GA 30912
Office: (706) 721-4219
IFL Link | PubMed Link

Developmental Therapeutics

Member, Tumor Signaling and Angiogenesis
Associate Professor, Biochemistry and Molecular Biology
Associate Professor, Graduate Studies

Research interests: Tumor suppressor functions of the butyrate transporter, SLC5A8, and the butyrate receptor, GPR109A, and mechanisms that regulate them in breast cancer

  • National Cancer Institute: “Tumor-Suppressive Function of SLC5A8 in Mammary Gland and its Relevance to Breast” 2008-2013, M Thangaraju, PI. Publications (selected)

Ha Y, Dun Y, Thangaraju M, Duplantier J, Dong Z, Liu K, Ganapathy V, Smith SB. Sigma receptor 1 modulates endoplasmic reticulum stress in retinal neurons. Invest Ophthalmol Vis Sci. 2011 Jan 25;52(1):527-40. Print 2011.

Li Y, Zhang M, Chen H, Dong Z, Ganapathy V, Thangaraju M, Huang S. Ratio of miR-196s to HOXC8 messenger RNA correlates with breast cancer cell migration and metastasis. Cancer Res. 2010 Oct 15;70(20):7894-904.

Singh N, Thangaraju M, Prasad PD, Martin PM, Lambert NA, Boettger T, Offermanns S, Ganapathy V. Blockade of dendritic cell development by bacterial fermentation products butyrate and propionate through a transporter (Slc5a8)-dependent inhibition of histone deacetylases. J Biol Chem. 2010 Sep 3;285(36):27601-8.

Kwon IK, Wang R, Thangaraju M, Shuang H, Liu K, Dashwood R, Dulin N, Ganapathy V, Browning DD. PKG inhibits TCF signaling in colon cancer cells by blocking beta-catenin expression and activating FOXO4. Oncogene. 2010 Jun 10;29(23):3423-34.

Cresci GA, Thangaraju M, Mellinger JD, Liu K, Ganapathy V. Colonic gene expression in conventional and germ-free mice with a focus on the butyrate receptor GPR109A and the butyrate transporter SLC5A8. J Gastrointest Surg. 2010 Mar;14(3):449-61.

Anderson CM, Jevons M, Thangaraju M, Edwards N, Conlon NJ, Woods S, Ganapathy V, Thwaites DT. Transport of the photodynamic therapy agent 5-aminolevulinic acid by distinct H+-coupled nutrient carriers coexpressed in the small intestine. J Pharmacol Exp Ther. 2010 Jan;332(1):220-8.

Gnana-Prakasam JP, Thangaraju M, Liu K, Ha Y, Martin PM, Smith SB, Ganapathy V. Absence of iron-regulatory protein Hfe results in hyperproliferation of retinal pigment epithelium: role of cystine/glutamate exchanger. Biochem J. 2009 Nov 11;424(2):243-52.

Thangaraju M, Karunakaran SK, Itagaki S, Gopal E, Elangovan S, Prasad PD, Ganapathy V. Transport by SLC5A8 with subsequent inhibition of histone deacetylase 1 (HDAC1) and HDAC3 underlies the antitumor activity of 3-bromopyruvate. Cancer. 2009 Oct 15;115(20):4655-66.

Thangaraju M, Cresci GA, Liu K, Ananth S, Gnanaprakasam JP, Browning DD, Mellinger JD, Smith SB, Digby GJ, Lambert NA, Prasad PD, Ganapathy V. GPR109A is a G-protein-coupled receptor for the bacterial fermentation product butyrate and functions as a tumor suppressor in colon. Cancer Res. 2009 Apr 1;69(7):2826-32.

Ganapathy V, Thangaraju M, Prasad PD. Nutrient transporters in cancer: relevance to Warburg hypothesis and beyond. Pharmacol Ther. 2009 Jan;121(1):29-40.

Thangaraju M, Carswell KN, Prasad PD, Ganapathy V. Colon cancer cells maintain low levels of pyruvate to avoid cell death caused by inhibition of HDAC1/HDAC3. Biochem J. 2009 Jan 1;417(1):379-89.

Thangaraju M, Cresci G, Itagaki S, Mellinger J, Browning DD, Berger FG, Prasad PD, Ganapathy V. Sodium-coupled transport of the short chain fatty acid butyrate by SLC5A8 and its relevance to colon cancer. J Gastrointest Surg. 2008 Oct;12(10):1773-81; discussion 1781-2.

Kwon IK, Schoenlein PV, Delk J, Liu K, Thangaraju M, Dulin NO, Ganapathy V, Berger FG, Browning DD. Expression of cyclic guanosine monophosphate-dependent protein kinase in metastatic colon carcinoma cells blocks tumor angiogenesis. Cancer. 2008 Apr 1;112(7):1462-70.

Karunakaran S, Umapathy NS, Thangaraju M, Hatanaka T, Itagaki S, Munn DH, Prasad PD, Ganapathy V. Interaction of tryptophan derivatives with SLC6A14 (ATB0,+) reveals the potential of the transporter as a drug target for cancer chemotherapy. Biochem J. 2008 Sep 15;414(3):343-55.

Ganapathy V, Thangaraju M, Gopal E, Martin PM, Itagaki S, Miyauchi S, Prasad PD. Sodium-coupled monocarboxylate transporters in normal tissues and in cancer. AAPS J. 2008;10(1):193-9.

Publications are updated quarterly. For a complete listing, see Dr. Thangaraju’s work on PubMed.