Circular RNAs in cholangiocarcinoma.

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Cholangiocarcinoma (CCA) is a primary biliary malignancy with poor prognosis and limited treatment options.
• Early CCA diagnosis is challenging due to nonspecific symptoms.
• Circular RNAs (circRNAs) are increasingly recognized for their roles in cancer development.

Purpose of the Study:

• To review the aberrant expression and mechanisms of circRNAs in CCA.
• To explore the role of circRNAs in CCA pathogenesis, including the inflammatory microenvironment and drug resistance.
• To discuss the clinical potential of circRNAs as biomarkers and therapeutic targets for CCA.

Main Methods:

• Literature review of studies on circRNAs in CCA.
• Analysis of circRNA dysregulation in CCA.
• Investigation of circRNA mechanisms (ceRNA network, RBP interactions, signaling pathways).

Main Results:

• Numerous circRNAs are dysregulated in CCA and correlate with poor clinical characteristics.
• CircRNAs influence CCA progression via ceRNA networks, RBPs, and signaling pathways.
• CircRNAs are implicated in the inflammatory microenvironment and chemotherapy resistance in CCA.

Conclusions:

• CircRNAs play critical roles in CCA occurrence and development.
• CircRNAs hold promise as diagnostic biomarkers and therapeutic targets for CCA.
• Further research is needed to translate circRNA findings into clinical practice for CCA.