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CSIR - Centre for Cellular & Molecular Biology

Council of Scientific and Industrial Research
Ministry of Science & Technology, Govt. of India

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Krishnan H Harshan

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Krishnan H Harshan-Img

Krishnan H Harshan

Principal Scientist

Research Interests

I currently use two different viral systems for studies: HCV is a positively sensed RNA virus which is transmitted across humans through blood. HCV infection could lead to chronic infection in more than 70% of the infected persons, which ultimately results in the development of liver cirrhosis (LC) and hepatocellular carcinoma (HCC). There are no vaccines available against HCV infection and the current treatment regime uses pegylated interferon a with ribovirin. The studies in the lab focus on various signaling pathways induced and manipulated by HCV in hepatocytes. KSHV, a g-herpesvirus has been implicated in the development of Kaposi’ sarcoma which is an angiomatous neoplasm seen in immune suppressed persons such as AIDS patients. Unlike other herpesviruses, KSHV does not induce a true lytic cycle in vitro, however induces an aberrant lytic cycle, and establishes latency. The mechanism by which true lytic cycle is inhibited early on in the infection is being analyzed in his laboratory.

Selected Publications

Krishnan, H.H., et al., 2004. Concurrent expression of latent and a limited number of lytic genes with immune modulation and anti-apoptotic functions by KSHV/HHV-8 early during infection of primary endothelial and fibroblast cells and subsequent decline of lytic gene expression. J Virology: 78:3601-20.

George, A., et al., 2012. Hepatitis C virus NS5A binds to the mRNA Cap binding eIF4F complex and upregulates host translation initiation machinery through 4EBP1 inactivation. J. Biol. Chemistry. 10; 287(7): 5042-58.

Panda, S., et al., 2014. Hepatitis C Virus Protein NS5A Coordinates a Unique Phosphorylation Dependent eIF4E Assembly on 40S Ribosomes That Regulates IRES Activity. Biochemical Journal, Sep 1;462(2):291-302.

Vedagiri, D., et al., 2016. An Atypical System for Studying Epithelial-Mesenchymal Transition in Hepatocellular Carcinoma. Scientific Reports 6:26282

Parveen, S., et al., 2017. Unconventional MAPK-GSK-3? Pathway Behind Atypical Epithelial-Mesenchymal Transition In Hepatocellular Carcinoma. Scientific Reports 7, 8842 (2017)

 

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Publications

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Krishnan H Harshan-Img

Krishnan H Harshan

Principal Scientist

2925

hkrishnan@ccmb.res.in

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Mohan Singh M

Technical Officer

2930

mohan_singh@ccmb.res.in

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Amit Kumar

Technical Officer

2950

amitkumar@ccmb.res.in

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Nivedita Gaur

Research Associate-I (DBT)

2930

nivedita@ccmb.res.in

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Dhiviya Vedagiri

Senior Research Fellow

2930

dhiviya@ccmb.res.in

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Sana Parveen

Senior Research Fellow

2930

parveen@ccmb.res.in

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Divya Gupta

Senior Research Fellow

2930

divyagupta@ccmb.res.in

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Haripriya Parthasarathy

Senior Research Fellow

2930

haripriya@ccmb.res.in

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Vishal Sah

Junior Research Fellow

2930

vishal.sah@ccmb.res.in

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Dixitkumar Tandel

Junior Research Fellow

2930

dixitkumar@ccmb.res.in

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Prangya Paramita Sahoo

Junior Research Fellow

2930

prangya@ccmb.res.in