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Golgi Phosphoprotein 3 Promotes Colon Cancer Cell Metastasis Through STAT3 and Integrin α3 Pathways.
Anpei Huang1, Ruizhi Wang2, Ji Cui3
1Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Frontiers in Molecular Biosciences
|April 4, 2022
Summary
Golgi phosphoprotein 3 (GOLPH3) promotes colorectal cancer (CRC) metastasis by activating STAT3 signaling, leading to increased ZEB1 and Integrin α3 expression. Targeting GOLPH3 may offer a new therapeutic strategy for CRC treatment.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Metastasis Research
Background:
- Golgi phosphoprotein 3 (GOLPH3) overexpression is linked to poor outcomes in colorectal cancer (CRC).
- The precise molecular mechanisms by which GOLPH3 drives CRC metastasis are not fully understood.
Purpose of the Study:
- To elucidate the role of GOLPH3 in colorectal cancer (CRC) progression and metastasis.
- To investigate the molecular pathways regulated by GOLPH3 in colon cancer cells.
Main Methods:
- Genetic manipulation of GOLPH3 using siRNA and lentivirus systems in colon cancer cell lines.
- Assays for cell invasion and migration, immunoblotting, qRT-PCR, immunofluorescence, and immunohistochemistry.
- Co-immunoprecipitation to analyze protein interactions and signaling pathway activation (STAT3, AKT/mTOR, Raf/MEK/ERK).
Main Results:
- GOLPH3 overexpression was observed in CRC tissues and cell lines.
- GOLPH3 knockdown inhibited colon cancer cell invasion and migration, while overexpression enhanced these abilities.
- GOLPH3 knockdown decreased STAT3 phosphorylation and the expression of ZEB1 and Integrin α3.
- GOLPH3 was found to interact with STAT3 and facilitate IL-6-induced STAT3 activation, promoting ZEB1 and Integrin α3 transcription.
Conclusions:
- GOLPH3 promotes colorectal cancer (CRC) metastasis by activating STAT3 signaling.
- GOLPH3 regulates the expression of EMT transcription factor ZEB1 and Integrin α3.
- GOLPH3 represents a potential therapeutic target for colorectal cancer (CRC) treatment.
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