Colorado PROFILES, The Colorado Clinical and Translational Sciences Institute (CCTSI)
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Regulation of Natural Killer T cell lineage diversification by the Src-like Adaptor protein 2


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? DESCRIPTION (provided by applicant): Adaptor proteins play a crucial role in receptor signaling. Even though they lack enzymatic activity, these proteins have modular domains that are able to interact with other proteins and form signaling complexes, leading to the activation or inhibition of signaling cascades. Src-like adapter proteins (SLAP and SLAP2) constitute a family of proteins that are expressed in a variety of cell types but are studied most extensively in lymphocytes. To date, no in vivo function in T lymphocytes has been ascribed to SLAP2. We have identified SLAP2 as an essential molecule controlling the development and function of a population of innate T lymphocytes, the Invariant Natural Killer T (iNKT) cells. While numerically low, these iNKT cells are immunologically important and have been implicated in regulating a multitude of immune responses associated with a broad range of diseases, including autoimmunity and allergy but also infectious diseases, cancer and metabolism. We propose to characterize the phenotypic, functional and molecular consequences of SLAP2-deficiency in iNKT cells. Not only will the proposed experiments provide a more comprehensive understanding of iNKT cell development and function, but this research will help identify ways to skew the development of one subset of iNKT cells over another and effectively treat diseases caused and/or modulated by iNKT cells. In order to harness the immunotherapeutic potential of these innate T cells, it is important to gain a full appreciation of their function and development
Collapse sponsor award id
R21AI124076

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Collapse start date
2016-08-01
Collapse end date
2019-07-31

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