IMMUNOLOGY: Dampening CD4+ immune cell function via the protein TLR4 The immune system uses a large number of proteins to sense the presence of microbes, including a family of proteins known as TLRs. The function of TLRs on immune cells known as DCs and macrophages has been well characterized, but the role of TLR4 on immune cells known as CD4+ T cells has not been determined. However, José M...
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