Boston College biologist Ken Williams, whose research focuses on the role of immunological cells in a range of illnesses that strike people living with HIV and AIDS, has been awarded a five-year, $2.7 million grant from the NIH's National Institute of Neurological Disorders and Stroke.
The award marks the third round of funding for Williams' research into monocyte and macrophage cells, which play important roles as part of the body's immunological response. Williams and his research team have linked the activity of these cells to the presence of debilitating conditions like dementia, cardiovascular disease and nerve damage that strike patients living with HIV or AIDS even though they have effectively muted the virus with drug therapies.
"Even though drug regimens can control HIV to the point where the virus is almost undetectable in people living with HIV, our lab has shown specific cells and cellular activity are the telltale signs of other lethal diseases that strike these patients as well as indicators of viral reservoirs with the power to revive the virus," said Williams. "With the support of the NIH, we are now pursuing advances that could lead to new therapies able to control the virus and its debilitating effects."
The latest grant will support the Williams lab's efforts to define the cell types in the brain that contribute to an HIV viral reservoir, which effectively harbors the virus even if it is almost undetectable in patients taking anti-retroviral therapy (ART) drugs. While patients on ART show few to none of the detectable signs of the illness, the virus rebounds when the patients are taken off ARTs. These patients also experience chronic immune activation of monocytes and macrophages, both of which the lab has identified as cell types from which the virus returns.