SOLVED: The cytokines interleukin-1 (IL-1) and tumor necrosis factor alpha (TNFα) are produced by sentinel cells in response to extracellular bacteria. They are important for initiating inflammation and the formation of pus. Tissue-resident sentinel cells express pattern recognition receptors that are essential for initiating IL-1 and TNFα signaling. What is the likely localization of these pattern recognition receptors within or on sentinel cells?

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