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Published on: July 21, 2018
Circ_PRKCA Drove NSCLC Progression via SRSF1/HIF-1A/PKM2 Axis-Mediated Glycolytic Reprogramming
Haiting Chen1, Xingxing Jin2, Leilei Tao1
1Department of Medical Oncology, Yancheng No.1 People's Hospital, Affiliated Hospital of Medical School, Nanjing University/ The Yancheng Clinical College of Xuzhou Medical University/ Yancheng Clinical Medical College of Jiangsu University, Yancheng, 224005, Jiangsu, China.
Circular RNA PRKCA (circPRKCA) promotes non-small cell lung cancer (NSCLC) growth and metastasis by stabilizing HIF-1A. This study identifies circPRKCA as a potential diagnostic biomarker and therapeutic target for NSCLC.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Non-small cell lung cancer (NSCLC) requires novel therapeutic targets.
- The role of circular RNA PRKCA (circPRKCA) in NSCLC is not well understood.
Purpose of the Study:
- To investigate the biological functions and regulatory mechanisms of circPRKCA in NSCLC.
- To explore circPRKCA as a potential diagnostic biomarker and therapeutic target for NSCLC.
Main Methods:
- Quantitative real-time PCR (qRT-PCR) and Western blotting to assess circPRKCA and target expression.
- In vitro functional assays and mouse xenograft models to evaluate tumor growth and metastasis.
- RNA immunoprecipitation (RIP) and dual-luciferase reporter assays to elucidate regulatory mechanisms.
Main Results:
- circPRKCA was significantly upregulated in NSCLC tissues and promoted tumor growth and metastasis.
- circPRKCA acts as a scaffold for SRSF1, stabilizing HIF-1A mRNA and enhancing NSCLC cell proliferation via PKM2-mediated glycolysis.
- High circPRKCA expression correlated with poor patient survival.
Conclusions:
- The circPRKCA-SRSF1 axis stabilizes HIF-1A, promoting proliferation and inhibiting apoptosis in NSCLC.
- circPRKCA represents a promising diagnostic biomarker and therapeutic strategy for NSCLC.
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