Associate Professor of Microbiology and Immunology
T cell Differentiation and Function in Response to Infections and Tumors, Immunologic Memory
Matthew Williams, PhD, is an associate professor in the Department of Pathology, Division of Microbiology and Immunology at the University of Utah. He is also a member of the Cell Response and Regulation program within the Huntsman Cancer Institute. The Williams laboratory studies T cell differentiation and function in response to infections and tumors.
Following viral or bacterial infection, numerous components of the immune response play a role in recognizing, engaging and eradicating the offending pathogen. T cells are particularly central to protection from a wide variety of infections. A key hallmark of protective T cell responses is the long-lived (in many cases life-long) persistence of memory T cells after the pathogen is cleared. Because memory T cells are present at elevated frequencies and recognize the pathogen much more quickly than naïve T cells, they are able to provide rapid protection upon encountering the same pathogen a second time. While many successful vaccines of the past have relied on the development of antibody responses for their protective effect, future disease challenges will require the induction of cell-mediated protection provided by T cells. The research focus of the Williams laboratory is to understand the nature of T cell intrinsic signals, such as the T-cell receptor, and T cell extrinsic signals, such as inflammation, in promoting the ability of T cells to acquire the functions that allow them to eradicate pathogens and form long-lived immunological memory.
A major obstacle in harnessing the immune system to combat cancer is the ability of many tumors to inhibit T cell function. The Williams laboratory is engaged in pre-clinical studies as well as clinical trials of melanoma to understand the mechanisms that tumors use to suppress T-cell responses and develop strategies to circumvent them. The end goal is to improve upon existing immune-based therapies to induce long-lived, highly functional anti-tumor memory T cells that promote durable cancer remission.
- Kim C, Jay DC, Williams MA (2014). Dynamic functional modulation of CD4+ T cell recall responses is dependent on the inflammatory environment of the secondary stimulus. PLoS Pathog, 10(5), e1004137.
- Kim C, Wilson T, Fischer KF, Williams MA (2013). Sustained interactions between T cell receptors and antigens promote the differentiation of CD4(+) memory T cells. Immunity, 39(3), 508-20.
- Eyob H, Ekiz HA, Derose YS, Waltz SE, Williams MA, Welm AL (2013). Inhibition of ron kinase blocks conversion of micrometastases to overt metastases by boosting antitumor immunity. Cancer Discov, 3(7), 751-60.
- Mitchell DM, Williams MA (2013). Disparate roles for STAT5 in primary and secondary CTL responses. J Immunol, 190(7), 3390-8.
- Khanolkar A, Williams MA, Harty JT (2013). Antigen experience shapes phenotype and function of memory Th1 cells. PLoS ONE, 8(6), e65234.
- Jay DC, Mitchell DM, Williams MA (2013). Bim mediates the elimination of functionally unfit Th1 responders from the memory pool. PLoS ONE, 8(6), e67363.
- Kim C, Jay DC, Williams MA (2012). Stability and function of secondary Th1 memory cells are dependent on the nature of the secondary stimulus. J Immunol, 189(5), 2348-55.
- Shakya A, Kang J, Chumley J, Williams MA, Tantin D (2011). Oct1 is a switchable, bipotential stabilizer of repressed and inducible transcriptional states. J Biol Chem, 286(1), 450-9.
- Mitchell DM, Ravkov EV, Williams MA (2010). Distinct roles for IL-2 and IL-15 in the differentiation and survival of CD8+ effector and memory T cells. J Immunol, 184(12), 6719-30.
- Ravkov EV, Williams MA (2009). The magnitude of CD4+ T cell recall responses is controlled by the duration of the secondary stimulus. J Immunol, 183(4), 2382-9.
- Williams MA, Ravkov EV, Bevan MJ (2008). Rapid culling of the CD4+ T cell repertoire in the transition from effector to memory. Immunity, 28(4), 533-45.
- Williams MA, Tyznik AJ, Bevan MJ (2006). Interleukin-2 signals during priming are required for secondary expansion of CD8+ memory T cells. Nature, 441(7095), 890-3.