Roles of Keratins in Intestine

Area of Science:

• Cell Biology
• Gastroenterology
• Biochemistry

Background:

• Keratins are major epithelial intermediate filament proteins.
• They are widely expressed in the small and large intestines, with keratins 8, 18, 19, and 20 being predominant in the human intestine.
• Keratins are known to maintain epithelial cell integrity, stability, and protect tissues from stress.

Purpose of the Study:

• To review and discuss the multifaceted roles of keratins within the intestinal system.
• To consolidate current understanding of keratin functions in intestinal health and disease.
• To highlight the potential of keratins as biomarkers for intestinal pathologies.

Main Methods:

• Comprehensive literature review of studies on keratins in the intestine.
• Analysis of research utilizing mouse models to investigate keratin function.
• Examination of patient samples from intestinal disease cohorts to identify keratin associations.

Main Results:

• Keratins play essential roles in maintaining the structural integrity and stability of intestinal epithelial cells.
• Keratin expression patterns and functions are implicated in cellular protection against various stresses.
• Alterations in keratin expression and organization are observed in several intestinal diseases, suggesting their role as potential biomarkers.

Conclusions:

• Keratins are vital for intestinal epithelial cell function, integrity, and stress resistance.
• The association between keratins and intestinal diseases is increasingly recognized, positioning them as important targets for research.
• Further investigation is needed to fully elucidate the complex roles of keratins in intestinal health and disease pathogenesis.