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Long noncoding RNA MALAT1-regulated microRNA 506 modulates ovarian cancer growth by targeting iASPP

Ruilin Lei1, Min Xue2, Lan Zhang3

  • 1Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Obstetrics and Gynecology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou; Department of Obstetrics and Gynecology, Third Xiangya Hospital, Central South University, Changsha, China.

Oncotargets and Therapy
|December 30, 2016
PubMed

Insights

MALAT1, a long noncoding RNA (lncRNA), promotes ovarian cancer growth by targeting miR-506 and iASPP. Inhibiting MALAT1 may offer a new therapeutic strategy for ovarian cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • The long noncoding RNA MALAT1 is implicated in various cancers.
  • Its specific role and mechanisms in ovarian cancer progression remain unclear.

Purpose of the Study:

  • To investigate the function and molecular mechanisms of MALAT1 in human ovarian cancer.
  • To determine if MALAT1 could serve as a therapeutic target.

Main Methods:

  • Quantitative analysis of MALAT1 expression in ovarian cancer cell lines and clinical samples.
  • In vitro experiments involving MALAT1 knockdown to assess effects on cell proliferation and DNA synthesis.
  • Investigation of the regulatory pathway involving MALAT1, miR-506, and iASPP.

Main Results:

  • MALAT1 was found to be significantly upregulated in ovarian cancer.
  • Knockdown of MALAT1 inhibited ovarian cancer cell proliferation and DNA synthesis.
  • MALAT1 promotes ovarian cancer growth by targeting miR-506, which in turn regulates iASPP.

Conclusions:

  • MALAT1 acts as an oncogenic lncRNA in ovarian cancer, promoting cell proliferation.
  • The miR-506-dependent iASPP regulation pathway is crucial for MALAT1's oncogenic activity.
  • MALAT1 represents a potential therapeutic target for ovarian cancer treatment.
Keywords:
MALAT1iASPPlncRNAmiR-506ovarian cancer

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