Which substances are produced by neutrophils to recruit macrophages during acute inflammation?

Prepare for the Tissue Injury, Healing, and Pain Test. Utilize flashcards and multiple-choice questions with hints and explanations. Ensure you're ready for the exam!

Multiple Choice

Which substances are produced by neutrophils to recruit macrophages during acute inflammation?

Cytokines. Neutrophils help drive the early inflammatory response by releasing signaling proteins such as interleukins and TNF that act on blood vessels and other immune cells to promote recruitment and activation. These cytokines increase vascular permeability and upregulate adhesion molecules, guiding monocytes to the site where they migrate into tissues and differentiate into macrophages. This signaling is how neutrophils help bring in macrophages to continue cleanup and coordinate the transition toward healing. Lipid mediators, platelets, and antibodies play other roles in inflammation or immunity, but the best match for neutrophil-mediated recruitment of macrophages is cytokines.

Cytokines. Neutrophils help drive the early inflammatory response by releasing signaling proteins such as interleukins and TNF that act on blood vessels and other immune cells to promote recruitment and activation. These cytokines increase vascular permeability and upregulate adhesion molecules, guiding monocytes to the site where they migrate into tissues and differentiate into macrophages. This signaling is how neutrophils help bring in macrophages to continue cleanup and coordinate the transition toward healing. Lipid mediators, platelets, and antibodies play other roles in inflammation or immunity, but the best match for neutrophil-mediated recruitment of macrophages is cytokines.

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