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miRNAs modulate the drug response of tumor cells

XueMei Wu1, HuaSheng Xiao

  • 1Center of Functional Genomics, Key Laboratory of System Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.

Science in China. Series C, Life Sciences
|October 6, 2009
PubMed

Insights

MicroRNAs (miRNAs) play a crucial role in regulating cancer drug resistance. Understanding miRNA

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Chemotherapy is a primary treatment for malignant carcinomas.
  • Chemotherapy effectiveness is often limited by intrinsic and acquired drug resistance.
  • Mechanisms of drug resistance include transporter overexpression, target mutation, DNA repair, and apoptosis defects.

Purpose of the Study:

  • To review the relationship between microRNAs (miRNAs) and cancer drug resistance.
  • To highlight the regulatory role of miRNAs in chemo-sensitivity of tumor cells.

Main Methods:

  • Literature review focusing on the role of miRNAs in cancer drug resistance.
  • Analysis of genetic and epigenetic changes influencing chemo-resistance.

Main Results:

  • MicroRNAs (miRNAs) are critical regulators of cellular processes including carcinogenesis.
  • miRNAs have been identified as key regulators of chemo-sensitivity in tumor cells.
  • Genetic and epigenetic alterations in genes related to drug resistance mechanisms are influenced by miRNAs.

Conclusions:

  • MicroRNAs (miRNAs) are significantly involved in modulating cancer chemo-resistance.
  • Further research into miRNA functions can offer novel therapeutic strategies against cancer drug resistance.

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