MicroRNAs, intestinal inflammatory and tumor.

Area of Science:

• Oncology
• Gastroenterology
• Molecular Biology

Background:

• Colorectal cancer (CRC) is a major global health concern, ranking as the third most lethal malignancy.
• Inflammatory bowel disease (IBD) significantly elevates the risk of developing colorectal cancer.
• Colitis-associated cancer (CAC) is a specific subtype of CRC linked to chronic inflammation.

Purpose of the Study:

• To review recent advancements in understanding altered tissue-specific microRNAs (miRNAs) in IBD, CRC, and CAC.
• To elucidate the role of miRNAs in the pathogenesis, diagnosis, and treatment of these conditions.
• To discuss the potential of miRNAs as therapeutic targets for CRC prevention.

Main Methods:

• Literature review of recent studies on miRNA expression in IBD, CRC, and CAC.
• Analysis of the role of specific miRNAs in the inflammatory pathways leading to cancer.
• Synthesis of current knowledge on miRNA-based diagnostic and therapeutic strategies.

Main Results:

• Ectopic miRNA expression is implicated in the pathogenesis of IBD and CRC.
• miRNAs play a critical role in the progression from inflammation to colorectal cancer.
• Altered tissue-specific miRNAs are associated with the development and progression of IBD, CRC, and CAC.

Conclusions:

• Tissue-specific miRNAs are crucial players in the pathogenesis of IBD, CRC, and CAC.
• Understanding miRNA dysregulation offers new avenues for diagnosing and treating these conditions.
• miRNAs represent promising novel therapeutic targets for the prevention and treatment of colorectal cancer.