BCL6 promotes the progression of high-grade serous ovarian cancer cells by inhibiting PLAAT4

  • 0Department of Allergy and Clinical Immunity, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.

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Summary

This summary is machine-generated.

B-cell lymphoma 6 (BCL6) drives high-grade serous ovarian cancer (HGSOC) progression by downregulating PLAAT4, activating the PI3K/AKT pathway. Targeting this BCL6-PLAAT4-AKT axis offers a potential HGSOC therapeutic strategy.

Area Of Science

  • Oncology
  • Molecular Biology
  • Cancer Research

Background

  • B-cell lymphoma 6 (BCL6) is recognized as a cancer driver, but its role in high-grade serous ovarian cancer (HGSOC) progression is not fully understood.
  • Investigating the molecular mechanisms of BCL6 in HGSOC is crucial for developing targeted therapies.

Purpose Of The Study

  • To elucidate the molecular mechanisms by which BCL6 influences HGSOC progression.
  • To identify downstream targets and pathways regulated by BCL6 in HGSOC.

Main Methods

  • Immunohistochemical staining for BCL6 and PLAAT4 expression in HGSOC and normal tissues.
  • Cleavage under targets and tagmentation (CUT&Tag) coupled with RNA sequencing (RNA-seq) to identify BCL6 regulatory mechanisms.
  • In vitro and in vivo assays (wound healing, plate cloning, EdU, transwell, tumor models) to assess cell proliferation, invasion, and migration.

Main Results

  • BCL6 expression is significantly elevated in HGSOC tissues, while PLAAT4 expression is reduced, correlating with poor patient prognosis.
  • BCL6 promotes HGSOC cell proliferation, invasion, and migration in vitro and in vivo.
  • BCL6 downregulates PLAAT4, leading to the activation of the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway.

Conclusions

  • The BCL6-PLAAT4-AKT axis is a critical regulator of HGSOC progression.
  • Targeting the BCL6-PLAAT4-AKT pathway presents a promising therapeutic strategy for HGSOC.

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