Bio

Academic Appointments


  • Clinical Instructor, Medicine

Publications

All Publications


  • CLINICOPATHOLOGICAL FEATURES OF NONALCOHOLIC STEATOHEPATITIS (NASH)-RELATED HEPATOCELLULAR CARCINOMA (HCC) Arjunan, V., Prabhakar, V., Raghavan, S., Tulu, Z., Kambham, N., Ahmed, A., Kwo, P., Dhanasekaran, R. WILEY. 2019: 548A
  • THE ROLE OF LOCOREGIONAL THERAPY (LRT), POST LRT IMAGING, AND EXPLANT PATHOLOGY AS PREDICTORS OF HEPATOCELLULAR CARCINOMA (HCC) RECURRENCE POST ORTHOTOPIC LIVER TRANSPLANT (OLT) Prabhakar, V., Dhanasekaran, R., Arjunan, V., Tulu, Z., Ahmed, A., Daugherty, T., Kumari, R., Patel, B., Kim, W., Goel, A., Esquivel, C. O., Concepcion, W., Melcher, M., Bonham, C., Gallo, A., Kwo, P. WILEY. 2019: 691A–692A
  • IS IT GOOD IDEA TO OFFER TRANSPLANT EXCEPTION POINTS FOR SEPTUAGENARIANS WITH HEPATOCELLULAR CARCINOMA (HCC)? Arjunan, V., Prabhakar, V., Raghavan, S., Tulu, Z., Kambham, N., Ahmed, A., Kwo, P., Dhanasekaran, R. WILEY. 2019: 557A–558A
  • Toward Elimination of Hepatitis C Infection: How Bestto Address Gaps in the Cascade of Care? Hepatology communications Prabhakar, V., Kwo, P. Y. 2019; 3 (9): 1174–76

    Abstract

    Because of the changing demographics of hepatitis C, screening for viral hepatitis should be done routinely in all pregnant woman. This process should include linkage to care. The best elimination strategy would incorporate universal screening for hepatitis C in all individuals over the age of 18.

    View details for DOI 10.1002/hep4.1403

    View details for PubMedID 31497738

  • Antigen-loaded monocyte administration induces potent therapeutic anti-tumor T cell responses. The Journal of clinical investigation Huang, M. N., Nicholson, L. T., Batich, K. A., Swartz, A. M., Kopin, D., Wellford, S., Prabhakar, V. K., Woroniecka, K., Nair, S. K., Fecci, P. E., Sampson, J. H., Gunn, M. D. 2019

    Abstract

    Efficacy of dendritic cell (DC) cancer vaccines is classically thought to depend on their antigen-presenting cell (APC) activity. Studies show, however, that DC vaccine priming of cytotoxic T lymphocytes (CTL) requires the activity of endogenous DC, suggesting that exogenous DC stimulate anti-tumor immunity by transferring antigen (Ag) to endogenous DC. Such Ag transfer functions are most commonly ascribed to monocytes, implying that undifferentiated monocytes would function equally well as a vaccine modality and need not be differentiated to DC to be effective. Here, we used several murine cancer models to test the anti-tumor efficacy of undifferentiated monocytes loaded with protein or peptide Ag. Intravenously injected monocytes displayed anti-tumor activity superior to DC vaccines in several cancer models, including aggressive intracranial glioblastoma. Ag-loaded monocytes induced robust CTL responses via Ag transfer to splenic CD8+ DC in a manner independent of monocyte APC activity. Ag transfer required cell-cell contact and the formation of connexin 43-containing gap junctions between monocytes and DC. These findings demonstrate the existence of an efficient gap junction-mediated Ag transfer pathway between monocytes and CD8+ DC and suggest that administration of tumor Ag-loaded undifferentiated monocytes may serve as a simple and efficacious immunotherapy for the treatment of human cancers.

    View details for DOI 10.1172/JCI128267

    View details for PubMedID 31661470