NDLI: Study on the Association Between miRNA-202 Expression and Drug Sensitivity in Multiple Myeloma Cells

Content Provider	Springer Nature Link
Author	Shen, Xianjuan Guo, Yuehua Qi, Jing Shi, Wei Wu, Xinhua Ni, Hongbing Ju, Shaoqing
Copyright Year	2015
Abstract	An increasing amount of experimental evidence has shown that miRNAs play a causal role in hematologic tumorigenesis. In this study, we characterized the role of miR-202 in multiple myeloma (MM) drug sensitivity. The potential binding site of miR-202 and B cell-activating factor (BAFF) was confirmed by luciferase reporter assay. MM cells were transfected with miR-202 mimics and inhibitor. Cells growth was measured by WST-1 cell proliferation assay and Annexin V-FLUOS apoptosis assay. BAFF and miR-202 mRNA levels were measured by real-time PCR. Meanwhile, BAFF, Bcl-2 family survival proteins and MAPK pathway proteins were measured by Western blot. It was found that miR-202 was functioned as a modulator of BAFF expression. miR-202 over-expression sensitized MM cells to bortezomib (Bort) but less to Thalidomide (Thal) and dexamethasone (Dex). miR-202 mimics in combination with Bort inhibited MM cell survival more effectively as compared with Bort treatment alone. Our study also provided experimental evidence that JNK/SAPK signaling pathway was involved in the regulatory effect of miR-202 on drug resistance of MM cells. These results suggest that the regulatory mechanism of miR-202 expression may be a promising target for fine-tuning anti-myeloma therapy.
Starting Page	531
Ending Page	539
Page Count	9
File Format	PDF
ISSN	12194956
Journal	Pathology & Oncology Research
Volume Number	22
Issue Number	3
e-ISSN	15322807
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-12-21
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	B cell-activating factor (BAFF) Drug resistance Multiple myeloma (MM) microRNA Signaling pathway Cancer Research Oncology Pathology Immunology Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Cancer Research Pathology and Forensic Medicine Oncology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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