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Updated: Jul 10, 2025

Immunohistochemical Staining of B7-H1 PD-L1 on Paraffin-embedded Slides of Pancreatic Adenocarcinoma Tissue
Published on: January 3, 2013
The m7G Reader NCBP2 Promotes Pancreatic Cancer Progression by Upregulating MAPK/ERK Signaling
Jiancong Xie1, Taiwei Mo2,3, Ruibing Li3,4,5
1Department of General Surgery (Pancreatic Hepatobiliary Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China.
Abstract:
PDAC is one of the most common malignant tumors worldwide. The difficulty of early diagnosis and lack of effective treatment are the main reasons for its poor prognosis. Therefore, it is urgent to identify novel diagnostic and therapeutic targets for PDAC patients. The m7G methylation is a common type of RNA modification that plays a pivotal role in regulating tumor development. However, the correlation between m7G regulatory genes and PDAC progression remains unclear. By integrating gene expression and related clinical information of PDAC patients from TCGA and GEO cohorts, m7G binding protein NCBP2 was found to be highly expressed in PDAC patients. More importantly, PDAC patients with high NCBP2 expression had a worse prognosis. Stable NCBP2-knockdown and overexpression PDAC cell lines were constructed to further perform in-vitro and in-vivo experiments. NCBP2-knockdown significantly inhibited PDAC cell proliferation, while overexpression of NCBP2 dramatically promoted PDAC cell growth. Mechanistically, NCBP2 enhanced the translation of c-JUN, which in turn activated MEK/ERK signaling to promote PDAC progression. In conclusion, our study reveals that m7G reader NCBP2 promotes PDAC progression by activating MEK/ERK pathway, which could serve as a novel therapeutic target for PDAC patients.
Insights
The m7G binding protein NCBP2 is highly expressed in pancreatic ductal adenocarcinoma (PDAC) and promotes tumor progression. Targeting NCBP2 may offer a new therapeutic strategy for PDAC patients.
Area of Science:
- Oncology
- Molecular Biology
- RNA Biology
Background:
- Pancreatic ductal adenocarcinoma (PDAC) presents significant diagnostic and therapeutic challenges globally.
- N7-methylguanosine (m7G) RNA modification is crucial in tumor development, but its role in PDAC is not fully understood.
Purpose of the Study:
- To investigate the role of m7G regulatory genes in pancreatic ductal adenocarcinoma (PDAC) progression.
- To identify novel diagnostic and therapeutic targets for PDAC.
Main Methods:
- Integrated analysis of gene expression and clinical data from TCGA and GEO cohorts.
- Constructed stable NCBP2-knockdown and overexpression PDAC cell lines.
- Performed in-vitro and in-vivo experiments to assess cell proliferation and tumor growth.
Main Results:
- NCBP2, an m7G binding protein, was found to be highly expressed in PDAC patients, correlating with a worse prognosis.
- NCBP2 knockdown inhibited PDAC cell proliferation, while overexpression promoted tumor growth.
- NCBP2 enhances c-JUN translation, activating the MEK/ERK signaling pathway.
Conclusions:
- NCBP2 promotes PDAC progression by activating the MEK/ERK pathway.
- NCBP2 represents a potential novel therapeutic target for pancreatic ductal adenocarcinoma.
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