Competitive endogenous network of circRNA, lncRNA, and miRNA in osteosarcoma chemoresistance

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Osteosarcoma remains a fatal bone tumor with stagnant survival rates despite treatment advancements.
• Multiple-drug resistance significantly hinders effective chemotherapy for osteosarcoma patients.
• Noncoding RNAs (ncRNAs) are increasingly recognized for their regulatory roles in gene expression and pathological conditions like cancer.

Purpose of the Study:

• To review the molecular mechanisms of chemotherapy resistance in osteosarcoma.
• To elucidate the role of competing endogenous RNA (ceRNA) networks involving circular RNAs (circRNAs), long noncoding RNAs (lncRNAs), and microRNAs (miRNAs) in osteosarcoma drug resistance.
• To highlight potential intervention targets for improving patient outcomes.

Main Methods:

• Literature review focusing on circRNA-, lncRNA-, and miRNA-mediated ceRNA networks.
• Analysis of studies investigating the mechanisms of drug resistance in osteosarcoma.
• Synthesis of current understanding of ncRNA regulation in cancer chemotherapy resistance.

Main Results:

• circRNAs and lncRNAs act as competing endogenous RNAs by binding to miRNA sites.
• These interactions regulate messenger RNA (mRNA) expression, influencing cancer initiation, progression, and drug resistance.
• The lncRNA/circRNA-miRNA-mRNA ceRNA network is implicated in the development of chemotherapy resistance in osteosarcoma.

Conclusions:

• Understanding the complex ncRNA-mediated ceRNA networks is crucial for deciphering osteosarcoma drug resistance.
• Elucidating these molecular mechanisms can identify novel therapeutic targets to overcome chemotherapy resistance.
• Further research into these networks holds significant promise for improving osteosarcoma treatment efficacy and patient survival.