期刊
ANNUAL REVIEW OF IMMUNOLOGY
卷 41, 期 -, 页码 207-228出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-immunol-101721-062818
关键词
repair; regeneration; immunity; inflammatory disease; epithelium; stem cells
类别
The epithelial tissues in our body have remarkable regenerative abilities and repair mechanisms that rely on a dynamic cross talk with immunity. Understanding the immune signals that contribute to epithelial regeneration and repair is crucial for therapeutic innovation in regenerative medicine and epithelial inflammatory diseases.
The epithelial tissues that line our body, such as the skin and gut, have remarkable regenerative prowess and continually renew throughout our lifetimes. Owing to their barrier function, these tissues have also evolved sophisticated repair mechanisms to swiftly heal and limit the penetration of harmful agents following injury. Researchers now appreciate that epithelial regeneration and repair are not autonomous processes but rely on a dynamic cross talk with immunity. A wealth of clinical and experimental data point to the functional coupling of reparative and inflammatory responses as two sides of the same coin. Here we bring to the fore the immunological signals that underlie homeostatic epithelial regeneration and restitution following damage. We review our current understanding of how immune cells contribute to distinct phases of repair. When unchecked, immune-mediated repair programs are co-opted to fuel epithelial pathologies such as cancer, psoriasis, and inflammatory bowel diseases. Thus, understanding the reparative functions of immunity may advance therapeutic innovation in regenerative medicine and epithelial inflammatory diseases.
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