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lncRNA DANCR Promotes Proliferation and Metastasis of Breast Cancer Cells Through Sponging miR-4319 and Upregulating VAPB
- Source :
- Cancer Biotherapy and Radiopharmaceuticals. 37:650-661
- Publication Year :
- 2022
- Publisher :
- Mary Ann Liebert Inc, 2022.
-
Abstract
- Background: Breast cancer is one of the most prevalent cancers that often occur in females. Long noncoding RNA differentiation antagonizing nonprotein coding RNA (DANCR) has been involved in the pathogenesis of various tumors, including breast cancer. This study aimed to investigate the role and underlying mechanism of DANCR in breast cancer. Materials and Methods: The level of DANCR was detected in breast cancer tissues and cells by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability was evaluated by the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay. Cell apoptosis was assessed using flow cytometry. Cell migration and invasion were estimated by the Transwell assay. The relationship between DANCR, miR-4319, and vesicle-associated membrane protein-associated protein B (VAPB) was confirmed by bioinformatic analysis and dual-luciferase reporter assay. The level of microRNA-4319 (miR-4319) was tested by qRT-PCR. The expression of VAPB was measured by qRT-PCR or western blot assay. Results: DANCR and VAPB were upregulated, while miR-4319 was downregulated in breast cancer tissues and cells. Knockdown of DANCR hindered proliferation, migration, and invasion and promoted apoptosis of breast cancer cells. DANCR knockdown inhibited breast cancer development through regulating miR-4319. Inhibition of miR-4319 restrained breast cancer cell progression by targeting VAPB. Moreover, DANCR regulated VAPB expression by sponging miR-4319 in breast cancer cells. Conclusion: DANCR facilitated breast cancer cell progression through regulating the miR-4319/VAPB axis, indicating that DANCR might be a potential biomarker and therapeutic target for breast cancer treatment.
- Subjects :
- Bromides
0301 basic medicine
Cancer Research
Vesicular Transport Proteins
Breast Neoplasms
Apoptosis
Biology
Metastasis
Flow cytometry
R-SNARE Proteins
03 medical and health sciences
0302 clinical medicine
Breast cancer
Cell Movement
Cell Line, Tumor
medicine
Humans
Radiology, Nuclear Medicine and imaging
Viability assay
Cell Proliferation
Pharmacology
Gene knockdown
medicine.diagnostic_test
Cell migration
General Medicine
VAPB
medicine.disease
Gene Expression Regulation, Neoplastic
MicroRNAs
030104 developmental biology
Oncology
030220 oncology & carcinogenesis
Cancer research
Female
RNA, Long Noncoding
Subjects
Details
- ISSN :
- 15578852 and 10849785
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Cancer Biotherapy and Radiopharmaceuticals
- Accession number :
- edsair.doi.dedup.....96115130c7c789d8e10e64a876b4d441