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Published on: July 17, 2019
Multiple functions and dual characteristics of RAB11A in cancers
Rui-Jian Guo1, Yu-Fei Cao1, En-Min Li1
1The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China.
Abstract:
Vesicle trafficking is an unceasing and elaborate cellular process that functions in material transport and information delivery. Recent studies have identified the small GTPase, Ras-related protein in brain 11A (RAB11A), as a key regulator in this process. Aberrant RAB11A expression has been reported in several types of cancers, suggesting the important functions and characteristics of RAB11A in cancer. These discoveries are of great significance because therapeutic strategies based on the physiological and pathological status of RAB11A might make cancer treatment more effective, as the molecular mechanisms of cancer development have not been completely revealed. However, these studies on RAB11A have not been reviewed and discussed specifically. Therefore, we summarize and discuss the recent findings of RAB11A involvement in different biological processes, including endocytic recycling regulation, receptors and adhesion molecules recycling, exosome secretion, phagophore formation and cytokinesis, as well as regulatory mechanisms in several tumor types. Moreover, contradictory effects of RAB11A have also been observed in different types of cancers, implying the dual characteristics of RAB11A in cancer, which are either oncogenic or tumor-suppressive. This review on the functions and characteristics of RAB11A highlights the value of RAB11A in inducing multiple important phenotypes based on vesicle trafficking and therefore will offer insights for future studies to reveal the molecular mechanisms, clinical significance, and therapeutic targeting of RAB11A in different cancers.
Insights
Ras-related protein in brain 11A (RAB11A) is vital for vesicle trafficking and cancer progression. This review details RAB11A
Area of Science:
- Cell Biology
- Molecular Oncology
- Cancer Research
Background:
- Vesicle trafficking is crucial for cellular transport and signaling.
- Ras-related protein in brain 11A (RAB11A) is a key regulator of vesicle trafficking.
- Altered RAB11A expression is linked to various cancers, indicating its role in tumorigenesis.
Purpose of the Study:
- To review and discuss the multifaceted roles of RAB11A in diverse biological processes.
- To explore the regulatory mechanisms of RAB11A in different cancer types.
- To highlight the dual oncogenic and tumor-suppressive functions of RAB11A in cancer.
Main Methods:
- Literature review and synthesis of recent studies on RAB11A.
- Analysis of RAB11A's involvement in endocytic recycling, receptor trafficking, exosome secretion, and cytokinesis.
- Examination of RAB11A's regulatory roles and expression patterns in various tumor types.
Main Results:
- RAB11A regulates key cellular processes including recycling, secretion, and cell division.
- RAB11A exhibits context-dependent roles in cancer, acting as both an oncogene and a tumor suppressor.
- Specific regulatory mechanisms of RAB11A in different cancers have been identified.
Conclusions:
- RAB11A is a significant player in vesicle trafficking with implications for cancer development.
- Understanding RAB11A's dual functions is critical for developing targeted cancer therapies.
- Further research into RAB11A's molecular mechanisms and clinical significance is warranted.
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