Title |
Suppressing miRNA-15a/-16 expression by interleukin-6 enhances drug-resistance in myeloma cells
|
---|---|
Published in |
Journal of Hematology & Oncology, September 2011
|
DOI | 10.1186/1756-8722-4-37 |
Pubmed ID | |
Authors |
Mu Hao, Li Zhang, Gang An, Weiwei Sui, Zhen Yu, Dehui Zou, Yan Xu, Hong Chang, Lugui Qiu |
Abstract |
The bone marrow microenvironment facilitates the survival, differentiation, and proliferation of myeloma (MM) cells. This study identified that microRNA-15a and -16 expressions tightly correlated with proliferation and drug sensitivity of MM cells. miRNA-15a/-16 expression in MM cells was significantly increased after treatment with cytotoxic agents. The interaction of bone marrow stromal cells (BMSC) with MM cells resulted in decreased miRNA-15a/-16 expression and promoted the survival of the MM cells. Interleukin-6 (IL-6) produced by BMSCs suppressed the expression of miRNA-15a and 16 in a time- and dose- dependent pattern, with the suppression on miRNA-15a being more significant than on miRNA-16. miRNA-15a-transfected MM cells were found to be arrested in G1/S checkpoint, and the transfected MM cells had decreased growth and survival. In conclusion, our data suggest that via suppressing miRNA-15a and -16 expressions, IL-6 secreted by BMSCs promotes drug-resistance in myeloma cells. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 1 | 33% |
Australia | 1 | 33% |
Unknown | 1 | 33% |
Demographic breakdown
Type | Count | As % |
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Scientists | 3 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 31 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 8 | 26% |
Student > Master | 6 | 19% |
Student > Bachelor | 5 | 16% |
Researcher | 3 | 10% |
Student > Postgraduate | 2 | 6% |
Other | 5 | 16% |
Unknown | 2 | 6% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 13 | 42% |
Biochemistry, Genetics and Molecular Biology | 8 | 26% |
Agricultural and Biological Sciences | 6 | 19% |
Unknown | 4 | 13% |