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Chronic diseases are often associated with altered inflammatory response, leading to increased host vulnerability to new inflammatory challenges. Employing streptozotocin (STZ)-induced diabetes as a model, we further investigate mechanisms leading to enhanced neutrophil (polymorphonuclear leukocytes [PMN]) responses under hyperglycemia and compare them with those under chronic colitis.
Myeloid-derived suppressor cells (MDSC) emerging during tumor growth or chronic inflammation play a critical role in regulating T cell function. However, mechanisms governing the generation of these cells remain unclear and need to be further defined. Using a DSS-induced colitis and recovery model, we characterized the dynamic changes within the myeloid compartments and the emerging of MDSC during active and resolution phases of inflammation.
Rapid clearance of adoptively transferred CD47-null cells in mice suggests a critical self-recognition mechanism, in which CD47 is the ubiquitous marker of ‘self’, and its interaction with macrophage SIRPα triggers inhibitory signaling through SIRPα cytoplasmic ITIMs and tyrosine phosphatase SHP-1/2.
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.
