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Updated: May 22, 2025

In Silico Identification and Characterization of circRNAs During Host-Pathogen Interactions
Published on: October 21, 2022
Circular RNA in Pancreatic Cancer: Biogenesis, Mechanism, Function and Clinical Application
Hang Chen1, Xianxing Wang1, Shan Liu2
1Institute of Hepatopancreatobiliary Surgery, Chongqing General Hospital, Chongqing University, Chongqing, 401147, China.
Abstract:
Circular RNAs (circRNAs) are a class of novel RNA molecules featured by single-strand covalently closed circular structure, which not only are extensively found in eukaryotes and are highly conserved, but also conduct paramount roles in the occurrence and progression of pancreatic cancer (PC) through diverse mechanisms. As recent studies have demonstrated, circRNAs typically exhibit tissue-specific and cell specific expression patterns, with strong potential as biomarkers for disease diagnosis and prognosis. On the basis of their localization and specific interactions with DNA, RNA, and proteins, circRNAs are considered to possess specific biological functions by acting as microRNA (miRNA) sponges, RNA binding protein (RBP) sponges, transcriptional regulators, molecular scaffolds and translation templates. On that account, further addressing the technical difficulties in the detection and research of circRNAs and filling gaps in their biological knowledge will definitely push ahead this comparatively young research field and bring circRNAs to the forefront of clinical practice. Thus, this review systematically summarizes the biogenesis, function, molecular mechanisms, biomarkers and therapeutic targets of circRNAs in PC.
Insights
Circular RNAs (circRNAs) play key roles in pancreatic cancer (PC) development. This review details their biogenesis, functions, and potential as biomarkers and therapeutic targets for PC.
Area of Science:
- Molecular Biology
- Genomics
- Oncology
Background:
- Circular RNAs (circRNAs) are highly conserved, covalently closed RNA molecules found in eukaryotes.
- circRNAs exhibit tissue- and cell-specific expression, indicating potential as diagnostic and prognostic biomarkers.
- They play critical roles in pancreatic cancer (PC) progression through diverse molecular mechanisms.
Purpose of the Study:
- To systematically review the biogenesis, function, molecular mechanisms, and clinical applications of circRNAs in pancreatic cancer.
- To highlight the potential of circRNAs as biomarkers for PC diagnosis and prognosis.
- To discuss circRNAs as therapeutic targets for pancreatic cancer.
Main Methods:
- Literature review of recent studies on circRNAs in pancreatic cancer.
- Systematic summary of circRNA biogenesis and functional mechanisms.
- Analysis of circRNAs' roles in PC occurrence and progression.
Main Results:
- circRNAs function as miRNA sponges, RBP sponges, transcriptional regulators, molecular scaffolds, and translation templates.
- circRNAs are implicated in the occurrence and progression of pancreatic cancer.
- circRNAs show promise as biomarkers for PC diagnosis and prognosis.
Conclusions:
- Understanding circRNA biogenesis and function is crucial for advancing pancreatic cancer research.
- Addressing technical challenges in circRNA detection will facilitate clinical applications.
- circRNAs represent promising biomarkers and therapeutic targets for pancreatic cancer.
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