Extracellular vesicles regulate immune responses and cellular function in intestinal inflammation and repair

TM Bui, LA Mascarenhas, R Sumagin - Tissue Barriers, 2018 - Taylor & Francis
TM Bui, LA Mascarenhas, R Sumagin
Tissue Barriers, 2018Taylor & Francis
Tightly controlled communication among the various resident and recruited cells in the
intestinal tissue is critical for maintaining tissue homeostasis, re-establishment of the barrier
function and healing responses following injury. Emerging evidence convincingly implicates
extracellular vesicles (EVs) in facilitating this important cell-to-cell crosstalk by transporting
bioactive effectors and genetic information in healthy tissue and disease. While many
aspects of EV biology, including release mechanisms, cargo packaging, and uptake by …
Abstract
Tightly controlled communication among the various resident and recruited cells in the intestinal tissue is critical for maintaining tissue homeostasis, re-establishment of the barrier function and healing responses following injury. Emerging evidence convincingly implicates extracellular vesicles (EVs) in facilitating this important cell-to-cell crosstalk by transporting bioactive effectors and genetic information in healthy tissue and disease. While many aspects of EV biology, including release mechanisms, cargo packaging, and uptake by target cells are still not completely understood, EVs contribution to cellular signaling and function is apparent. Moreover, EV research has already sparked a clinical interest, as a potential diagnostic, prognostic and therapeutic tool. The current review will discuss the function of EVs originating from innate immune cells, namely, neutrophils, monocytes and macrophages, as well as intestinal epithelial cells in healthy tissue and inflammatory disorders of the intestinal tract. Our discussion will specifically emphasize the contribution of EVs to the regulation of vascular and epithelial barrier function in inflamed intestines, wound healing, as well as trafficking and activity of resident and recruited immune cells.
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