Under pressure: Stem cell-niche interactions coordinate tissue adaptation to inflammation

Area of Science:

• Regenerative Medicine
• Immunology
• Tissue Biology

Background:

• Epithelial tissues like skin and gut face constant environmental challenges.
• Inflammation is a critical response to injury, microbes, and toxins.
• Stem and progenitor cells (SCs) are crucial for tissue maintenance and repair.

Purpose of the Study:

• To review how epithelial SCs and their niches sense and respond to inflammation.
• To highlight inflammation-induced plasticity and memory in SCs.
• To explore therapeutic potential in epithelial inflammatory conditions.

Main Methods:

• Literature review of studies on stem and progenitor cell responses to inflammation.
• Analysis of mechanisms by which SCs sense inflammatory signals.
• Examination of SC plasticity and memory formation post-inflammation.

Main Results:

• Epithelial SCs actively sense and respond to diverse inflammatory stimuli.
• Inflammation induces significant plasticity in SC behavior and differentiation potential.
• SCs can form lasting 'memories' of inflammatory exposures, influencing future responses.

Conclusions:

• Understanding SC-inflammation interactions is key to preserving tissue integrity.
• Targeting SC responses to inflammation may offer novel therapeutic strategies.
• This field holds promise for treating inflammatory diseases, promoting wound healing, and addressing aging-related tissue decline.