Cell-based Screening and Validation of Human Novel Gene TMEM9B Activated Nuclear Factor Signaling Pathway / 生物化学与生物物理进展
Progress in Biochemistry and Biophysics
;
(12): 1423-1428, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-405506
ABSTRACT
Nuclear factor κB (NF-κB) is an important cellular transcription factor. The important role of NF-κB-mediated cell signal transduction pathway in apoptosis is a hot topic at home and abroad. In order to discover new regulators in NF-κB signaling pathway, a high-throughput cell-based screening model based on dual luciferase reporters system was established, a number of genes that can activate NF-κB signal pathway were obtained by screening of 439 novel function genes. Among them, TMEM9B can obviously activate NF-κB signaling pathway. Further experiments showed that TMEM9B activated NF-κB signaling pathway in a dose-dependent pattern. Western blotting and EMSA experiments confirmed that TMEM9B can promote the degradation of IκBα (a cytoplasm inhibitor of NF-κB), and cause NF-κB shift from the cytoplasm to nucleus. At the same time, flow cytometry result demonstrated TMEM9B can induce apoptosis in HEK293T and HeLa cells. In short, a stable and effective screening system for NF-κB has been established, through which TMEM9B was identified to be able to significantly activate NF-κB signal transduction pathway and thus cause cells apoptosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
/
Prognostic study
/
Screening study
Language:
Chinese
Journal:
Progress in Biochemistry and Biophysics
Year:
2009
Type:
Article
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