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Induction and Analysis of Epithelial to Mesenchymal Transition
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Induction and Analysis of Epithelial to Mesenchymal Transition

Published on: August 27, 2013

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ERK2-ZEB1-miR-101-1 axis contributes to epithelial-mesenchymal transition and cell migration in cancer

Kailash Chandra Mangalhara1, Siddharth Manvati2, Sunil Kumar Saini1

  • 1School of Life Sciences, Jawaharlal Nehru University, New Delhi, Delhi 110067, India.

Cancer Letters
|January 23, 2017
PubMed

Insights

MicroRNA-101 (miR-101) targets key factors regulating cancer metastasis. This microRNA, controlled by ERK2, offers a potential therapeutic target for reducing tumor spread and improving patient outcomes.

Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • Cancer metastasis remains a complex challenge despite advances in cancer research.
  • MicroRNAs have emerged as critical regulators of cellular processes, including metastasis.

Purpose of the Study:

  • To elucidate the role of microRNA-101 (miR-101) in regulating cellular metastasis.
  • To identify the molecular mechanisms underlying miR-101's function in metastasis and its potential as a therapeutic target.

Main Methods:

  • Investigated miR-101's targeting of transcription factors (ZEB1, ZEB2) and actin modulators (RHOA, RAC1).
  • Examined the regulation of miR-101 by extracellular signal-regulated kinase-2 (ERK2) and its impact on the MAP kinase pathway.
  • Assessed the correlation between miR-101 expression and lymph node metastasis in breast cancer tissues.

Main Results:

  • miR-101 directly targets ZEB1, ZEB2, RHOA, and RAC1, inhibiting key metastatic processes.
  • ERK2 down-regulates miR-101, promoting cellular migration and epithelial-mesenchymal transition (EMT).
  • A significant correlation was observed between reduced miR-101 expression and lymph node metastasis in breast cancer.

Conclusions:

  • miR-101 is a crucial regulator of cancer metastasis by targeting multiple pro-metastatic factors.
  • The ERK2-ZEB1-miR-101 pathway is implicated in breast cancer metastasis and holds potential for therapeutic intervention.
Keywords:
Breast cancerCytoskeletonEMT-TFsEpidermal growth factor (EGF)miR-101microRNA

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