My lab is focused on a specific family of proteins called E proteins, which are decision makers that control genetic information and decide what kinds of cells are made.
We want to understand how these lineage decisions are made and what the implications of these decisions are in human health.
We know that E proteins are important for making B cells and T cells, which are two types of immune cells, but how this process works is poorly understood.
We are investigating how this complex process works by studying mice who do not have E proteins. We specifically looked at the thymus, a small organ that sits at the top of the chest and exists specifically to train the immune system to recognize what is normal and what is not.
When E proteins were removed from the thymus, we discovered the organ made an entirely different kind of cells in their place: innate lymphoid cells. Innate lymphoid cells trigger an immediate immune response and respond to tissue damage or infections very quickly but are less sophisticated in immunity than B or T cells.
We were the first to show the thymus can make these cells, and we are investigating the biological significance to understand why the thymus has this function and how it contributes to health in mice and, ultimately, in humans.
This has important potential for drug development because innate lymphoid cells, while they do some good things, have been implicated in a number of diseases, including asthma, inflammatory bowel disease and psoriasis.
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