WTAP knockdown inhibits cell migration through regulating SNAIL1 expression in colorectal cancer
Jingjing Han1, Jiankun Zhang2, Huilong Shi3
1Department of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences Jinan 250117, Shandong, China.
Objective:
N6-methyladenosine (m6A) modification is the most prevalent mRNA modification in carcinogenesis and it plays a crucial role. WTAP, an m6A RNA methyltransferase, is functionally significant in various cancers; however, the specific role and functional mechanism in colorectal cancer (CRC) remain poorly understood.
Method:
In this study, we utilized Gene Expression Profiling Interactive Analysis (GEPIA) to compare WTAP expression in CRC and normal tissues. Functional assays including colony formation assay and transwell assay were conducted to assess the impact of WTAP on cell viability and migration. RNA dot blot and MeRIP-PCR assays were used to investigate WTAP's role in m6A modification.
Results:
WTAP expression was elevated in CRC tissues. Colony formation and transwell assays showed that WTAP promoted proliferation and migration of CRC cells in vitro. Mechanistically, MeRIP-PCR analysis demonstrated that WTAP knockdown inhibited SNAI1 expression by reducing m6A modification of SNAI1 in CRC cells. Supporting this, analysis of data from GEPIA and cBioPortal revealed a positive correlation between WTAP and SNAI1 expression.
Conclusion:
WTAP may act as an oncogene in CRC by regulating SNAI1 expression.
Insights
WTAP promotes colorectal cancer (CRC) growth and spread by increasing m6A modification of SNAI1. This study reveals WTAP as a potential oncogene in CRC, highlighting its role in cancer progression.
Area of Science:
- Oncology
- Molecular Biology
- Epigenetics
Background:
- N6-methyladenosine (m6A) modification is a key epigenetic regulator in cancer.
- WTAP, an m6A RNA methyltransferase, is implicated in various cancers.
- The specific role of WTAP in colorectal cancer (CRC) is not well understood.
Purpose of the Study:
- To investigate the role and mechanism of WTAP in colorectal cancer (CRC).
- To determine if WTAP functions as an oncogene in CRC progression.
Main Methods:
- Compared WTAP expression in CRC and normal tissues using GEPIA.
- Assessed WTAP's impact on CRC cell proliferation and migration via colony formation and transwell assays.
- Investigated WTAP's role in m6A modification using RNA dot blot and MeRIP-PCR assays.
Main Results:
- WTAP expression is significantly elevated in CRC tissues.
- WTAP knockdown suppressed CRC cell proliferation and migration in vitro.
- WTAP knockdown reduced m6A modification of SNAI1, inhibiting its expression.
- Positive correlation observed between WTAP and SNAI1 expression in CRC.
Conclusions:
- WTAP acts as an oncogene in colorectal cancer (CRC).
- WTAP promotes CRC progression by regulating SNAI1 expression via m6A modification.
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