Related Experiment Video

Updated: Apr 19, 2026

Author Spotlight: Unveiling the Role of TMOD3 in Platinum Resistance and Immune Infiltration in Ovarian Cancer
09:40

Author Spotlight: Unveiling the Role of TMOD3 in Platinum Resistance and Immune Infiltration in Ovarian Cancer

Published on: August 2, 2024

3.4K

MTA1 promotes cell proliferation via DNA damage repair in epithelial ovarian cancer

Q Y Yang1, J H Li2, Q Y Wang3

  • 1Department of Laboratory Medicine, Tenth People's Hospital of Tongji University, Shanghai, China.

Genetics and Molecular Research : GMR
|December 16, 2014
PubMed

Insights

Metastasis-associated gene 1 (MTA1) drives ovarian cancer cell growth by enhancing DNA repair mechanisms. Inhibiting MTA1 reduces proliferation and increases sensitivity to chemotherapy, offering potential therapeutic targets.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Metastasis-associated gene 1 (MTA1) is implicated in cancer progression.
  • The role of MTA1 in ovarian cancer cell proliferation and DNA repair remains unclear.

Purpose of the Study:

  • To investigate if MTA1 promotes ovarian cancer cell proliferation by enhancing DNA damage repair.
  • To assess the impact of MTA1 downregulation on ovarian cancer cell growth, cell cycle, and sensitivity to cisplatin.

Main Methods:

  • Small interfering RNA (siRNA) was used to downregulate MTA1 in SKOV-3 and OVCAR-3 ovarian cancer cell lines.
  • Cell proliferation was assessed using MTT and colony formation assays.
  • Cell cycle distribution, cisplatin sensitivity, DNA damage (comet assay), and DNA repair protein expression (Western blot) were analyzed.

Main Results:

  • MTA1 knockdown significantly inhibited ovarian cancer cell growth and induced S phase cell cycle arrest.
  • Downregulation of MTA1 increased ovarian cancer cell sensitivity to cisplatin treatment.
  • MTA1 depletion led to increased and persistent ionizing radiation-induced DNA damage, evidenced by comet assay and elevated levels of DNA repair proteins (γH2AX, pRPA, pChk1).

Conclusions:

  • MTA1 promotes epithelial ovarian cancer cell proliferation by enhancing DNA repair pathways.
  • Targeting MTA1 may represent a viable strategy to overcome cisplatin resistance and inhibit ovarian cancer progression.

More Related Videos

Murine Model for Non-invasive Imaging to Detect and Monitor Ovarian Cancer Recurrence08:55

Murine Model for Non-invasive Imaging to Detect and Monitor Ovarian Cancer Recurrence

Published on: November 2, 2014

13.0K
Author Spotlight: Advanced Ex Vivo Model for Investigating Cancer-Adipose Microenvironment Interaction05:42

Author Spotlight: Advanced Ex Vivo Model for Investigating Cancer-Adipose Microenvironment Interaction

Published on: January 26, 2024

3.4K

Related Concept Videos

mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
5.1K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

1.8K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.5K
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
8.5K
DNA Damage can Stall the Cell Cycle02:36

DNA Damage can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
10.4K
DNA Damage Can Stall the Cell Cycle02:36

DNA Damage Can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
3.4K