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  11. Protein Phosphatase 6 Promotes Stemness Of Colorectal Cancer Cells

Protein phosphatase 6 promotes stemness of colorectal cancer cells

Nobuyuki Fujiwara1,2, Ryouichi Tsunedomi1,3, Yuta Kimura1

  • 1Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, Ube, Japan.

Cancer Science
|July 16, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Protein phosphatase 6 catalytic subunit (PP6c) drives colorectal cancer (CRC) growth and stemness. Targeting PP6c may offer a new therapeutic strategy for CRC by disrupting cancer progression and stem cell maintenance.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Colorectal cancer (CRC) necessitates deeper molecular understanding for advanced therapies.
  • Protein phosphatase 6 (PP6) is a type 2A phosphatase implicated in cellular regulation.

Purpose of the Study:

  • To investigate the role of protein phosphatase 6 catalytic subunit (PP6c) in colorectal cancer.
  • To determine PP6c's involvement in cancer stemness and CRC progression.

Main Methods:

  • Analysis of PP6c expression in CRC tissues versus normal mucosa.
  • PP6c knockdown in CRC cell lines to assess proliferation and colony formation.
  • Transcriptome analysis to identify genes affected by PP6c knockdown.
  • Investigation of the PP6c-PP6R3 complex in regulating cancer stem cell (CSC) markers.
Keywords:
cancer stem cellcolony formationcolorectal cancerprotein phosphatase 6

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  • Assessment of PP6c expression in sphere-formed CSC-like cells.

    • Main Results:

    • PP6c expression is elevated in CRC tissues.
    • PP6c knockdown reduces CRC cell proliferation and colony formation.
    • PP6c knockdown alters expression of genes related to cancer stemness.
    • The PP6c-PP6R3 complex is crucial for regulating CSC markers.
    • PP6c expression is increased in CSC-like cells, indicating a role in CSC maintenance.

    Conclusions:

    • PP6c plays a significant role in colorectal cancer progression and stem cell maintenance.
    • PP6c is a potential therapeutic target for CRC treatment.
    • Targeting PP6c may disrupt pathways critical for CRC growth and CSC maintenance.
    tumor growth