Noggin Promotes Cell Proliferation Through Up-regulating EGFR/HER2 in Pancreatic Cancer Cells
Ming Liu1,2, Karl Chan1, Amy Bancroft1
1Cardiff China Medical Research Collaborative, Division of Cancer & Genetics, Cardiff University School of Medicine, Cardiff, U.K.
Background/Aim:
Noggin is a secreted antagonist of bone morphogenetic proteins (BMPs) and plays a key role in regulating various developmental and homeostatic biological processes. BMPs have been linked to the development of several types of cancers. However, the impact of Noggin on cellular functions and its role in pancreatic cancer remain unclear. This study aimed to investigate the role of Noggin in pancreatic cancer and its underlying molecular mechanisms.
Materials And Methods:
Noggin expression in both normal and cancerous pancreatic tissues was assessed using both quantitative and conventional PCR methods, alongside an analysis of publicly available gene expression array datasets. Correlations between Noggin expression and patient survival, TNM staging, tumor/stroma subtypes, and the expression of other cancer-related genes were examined. The influence of Noggin on cellular functions was evaluated in pancreatic cancer cell lines Mia PaCa-2 and PANC-1, which were genetically modified to overexpress Noggin.
Results:
Noggin expression was found to be significantly higher in tumor tissues compared to normal pancreatic tissues. Elevated Noggin expression was associated with shorter overall survival in patients. Overexpression of Noggin led to increased proliferation of pancreatic cancer cells. Furthermore, elevated levels of EGFR and HER2 proteins were observed in the PANC-1 and Mia PaCa-2 cell lines, respectively. Treatment with EGFR and HER2 inhibitors reduced Noggin-induced proliferation in these cell lines.
Conclusion:
Noggin is overexpressed in pancreatic cancer tissues and is linked to poor patient survival. Noggin promotes the proliferation of pancreatic cancer cells by up-regulating EGFR and HER2.
Insights
Noggin protein is overexpressed in pancreatic cancer, promoting tumor cell growth and reduced patient survival. This growth is linked to increased EGFR and HER2 signaling pathways.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Noggin antagonizes bone morphogenetic proteins (BMPs), influencing development and homeostasis.
- BMPs are implicated in various cancers, but Noggin's role in pancreatic cancer is not well understood.
- Investigating Noggin's function in pancreatic cancer is crucial for understanding disease progression.
Purpose of the Study:
- To determine the role of Noggin in pancreatic cancer.
- To elucidate the molecular mechanisms underlying Noggin's function in pancreatic cancer.
Main Methods:
- Assessed Noggin expression in pancreatic tissues and public datasets.
- Correlated Noggin levels with patient survival, staging, and gene expression.
- Evaluated Noggin's impact on pancreatic cancer cell lines (Mia PaCa-2, PANC-1) via genetic modification.
Main Results:
- Noggin expression is significantly higher in pancreatic tumors than normal tissues.
- Elevated Noggin correlates with poorer patient survival.
- Noggin overexpression increases pancreatic cancer cell proliferation by up-regulating EGFR and HER2.
Conclusions:
- Noggin is overexpressed in pancreatic cancer and associated with poor outcomes.
- Noggin promotes pancreatic cancer cell proliferation through EGFR and HER2 pathways.
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