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Grainyhead-like 2 as a double-edged sword in development and cancer
Jiaxing He1, Chunyang Feng1, He Zhu1
1Department of Gynecology and Obstetrics, The Second Hospital of Jilin University Changchun, Jilin, China.
American Journal of Translational Research
|March 21, 2020
Summary
Grainyhead-like 2 (GRHL2) plays key roles in normal development and suppresses cancer progression by inhibiting epithelial-to-mesenchymal transition (EMT). Its function in cancer, however, is complex, acting as either a tumor promoter or suppressor depending on the cancer type.
Area of Science:
- Molecular Biology
- Developmental Biology
- Cancer Biology
Background:
- Grainyhead-like 2 (GRHL2) is crucial for epithelial morphogenesis and differentiation.
- GRHL2 dysregulation is linked to hearing loss and neural tube defects.
- GRHL2 is recognized for suppressing epithelial-to-mesenchymal transition (EMT), a process vital for cancer cell migration and invasion.
Purpose of the Study:
- To review the normal physiological functions of GRHL2.
- To elucidate the multifaceted roles of GRHL2 in tumorigenesis.
- To provide insights for future GRHL2-targeted cancer therapies.
Main Methods:
- Literature review of research on GRHL2 functions.
- Analysis of GRHL2's involvement in epithelial development and cancer.
- Discussion of molecular mechanisms underlying GRHL2's roles.
Main Results:
- GRHL2 is essential for epithelial morphogenesis, neural tube closure, and hearing.
- GRHL2 acts as a tumor suppressor by inhibiting EMT, often through feedback loops with ZEB1 and miR200.
- GRHL2's role in cancer is context-dependent, potentially acting as a tumor enhancer or inhibitor based on cancer type.
Conclusions:
- GRHL2 exhibits diverse functions in both normal development and cancer.
- Understanding GRHL2's complex roles, including its interactions with signaling pathways like ER and TGF-beta, is critical.
- Further research into GRHL2 mechanisms may lead to novel therapeutic strategies for various cancers.
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