Browsing by Author "Rosser, Elizabeth C."

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    B cell contribution to immunometabolic dysfunction and impaired immune responses in obesity
    (2022-12) Oleinika, Kristine; Slisere, Baiba; Catalán, Diego; Rosser, Elizabeth C.; Department of Internal Diseases; Department of Doctoral Studies
    Obesity increases the risk of type 2 diabetes mellitus, cardiovascular disease, fatty liver disease, and cancer. It is also linked with more severe complications from infections, including COVID-19, and poor vaccine responses. Chronic, low-grade inflammation and associated immune perturbations play an important role in determining morbidity in people living with obesity. The contribution of B cells to immune dysregulation and meta-inflammation associated with obesity has been documented by studies over the past decade. With a focus on human studies, here we consolidate the observations demonstrating that there is altered B cell subset composition, differentiation, and function both systemically and in the adipose tissue of individuals living with obesity. Finally, we discuss the potential factors that drive B cell dysfunction in obesity and propose a model by which altered B cell subset composition in obesity underlies dysfunctional B cell responses to novel pathogens.