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TMPyP4-regulated cell proliferation and apoptosis through the Wnt/β-catenin signaling pathway in SW480 cells

Yi-Qiang Zhang1,2, Yue-Hong Zhang1, Jun Xie1

  • 1a Department of Biochemistry & Molecular Biology Full Affiliation , Shanxi Medical University , Taiyuan , PR China .

Journal of Receptor and Signal Transduction Research
|September 19, 2015
PubMed
Abstract

Insights

The compound 5, 10, 15, 20-tetrakis (1-methylpyridinium-4-yl) porphyrin (TMPyP4) inhibits colon cancer cell growth and induces apoptosis by suppressing the Wnt/β-catenin signaling pathway. This suggests TMPyP4 as a potential colon carcinoma treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Colon carcinoma is a significant global health concern.
  • Targeting cellular proliferation and apoptosis is crucial for cancer therapy.

Purpose of the Study:

  • To investigate the effects of 5, 10, 15, 20-tetrakis (1-methylpyridinium-4-yl) porphyrin (TMPyP4) on SW480 colon cancer cells.
  • To elucidate the underlying mechanisms, particularly the Wnt/β-catenin signaling pathway.

Main Methods:

  • Cell viability assessed using MTT assay.
  • Apoptosis analyzed via flow cytometry (FCM).
  • Gene and protein expression (Wnt, GSK-3β, β-catenin, cyclinD1) measured by RT-PCR and Western blot.

Main Results:

  • TMPyP4 significantly reduced SW480 cell viability and induced apoptosis in a dose-dependent manner.
  • TMPyP4 downregulated Wnt, β-catenin, and cyclinD1 expression.
  • siRNA-mediated Wnt pathway inhibition diminished TMPyP4's effects on proliferation and apoptosis.

Conclusions:

  • TMPyP4-induced apoptosis and proliferation inhibition in colon cancer cells are linked to Wnt/β-catenin pathway suppression.
  • TMPyP4 demonstrates potential as a therapeutic agent for colon carcinoma.
Keywords:
ApoptosisSW480 cellsTMPyP4Wnt/β-cateninproliferation

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