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Updated: Dec 13, 2025

Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
GINS2 promotes EMT in pancreatic cancer via specifically stimulating ERK/MAPK signaling
Longping Huang1, Si Chen2, Haijun Fan1
1Department of General Surgery, Hepatobiliary Surgery, The Fourth People's Hospital of Shenyang, Shenyang, 110031, China.
Abstract:
Go-Ichi-Ni-San 2 (GINS2), as a newly discovered oncogene, is overexpressed in several cancers. However, the specific role of GINS2 in the development of pancreatic cancer (PC), to our knowledge, is poorly understood. We systematically explored the potential role of GINS2 in epithelial-mesenchymal-transition (EMT)-stimulated PC in vitro and vivo. GINS2 was overexpressed in human PC specimens, which was positively associated with tumor size (P = 0.010), T stage (P = 0.006), vascular invasion (P = 0.037), and the poor prognosis (P = 0.004). Interestingly, a close correlation between GINS2, E-cadherin, and Vimentin (P = 0.014) was found in human PC specimens and cell lines that coordinately promoted the worse survival of PC patients (P = 0.009). GINS2 overexpression stimulated EMT in vitro, including promoting EMT-like cellular morphology, enhancing cell motility, and activating EMT and ERK/MAPK signal pathways. However, PD98059, a specific MEK1 inhibitor, reversed GINS2 overexpression-stimulated EMT in vitro. Conversely, GINS2 silencing inhibited EMT in PANC-1 cells, which was also rescued by GINS2-GFP. Moreover, GINS2 was colocalized and co-immunoprecipitated with ERK in GINS2 high-expression Miapaca-2 and PANC-1 cells, implying a tight interaction of GINS2 with ERK/MAPK signaling. Meanwhile, GINS2 overexpression inhibited distant liver metastases in vivo, following a tight association with EMT and ERK/MAPK signaling, which was reversed by MEK inhibitor. Overexpression of GINS2 contributes to advanced clinical stage of PC patient and promotes EMT in vitro and vivo via specifically activating ERK/MAPK signal pathway.
Insights
Go-Ichi-Ni-San 2 (GINS2) oncogene overexpression drives pancreatic cancer (PC) progression by promoting epithelial-mesenchymal-transition (EMT) through the ERK/MAPK pathway. GINS2 is linked to advanced stages and poor prognosis in PC patients.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Go-Ichi-Ni-San 2 (GINS2) is a newly identified oncogene implicated in various cancers.
- The specific role of GINS2 in pancreatic cancer (PC) development and progression remains largely uncharacterized.
- Epithelial-mesenchymal-transition (EMT) is a critical process in cancer metastasis, particularly in pancreatic cancer.
Purpose of the Study:
- To investigate the role of GINS2 in epithelial-mesenchymal-transition (EMT)-stimulated pancreatic cancer (PC).
- To explore the association between GINS2 expression and clinicopathological features and prognosis in PC patients.
- To elucidate the underlying molecular mechanisms, including the involvement of the ERK/MAPK signaling pathway.
Main Methods:
- Analysis of GINS2 expression in human PC specimens and correlation with clinicopathological parameters and survival.
- In vitro studies using PC cell lines to assess the effects of GINS2 overexpression or silencing on EMT, cell motility, and signaling pathways.
- In vivo experiments to evaluate the impact of GINS2 on liver metastasis in a mouse model, with and without MEK inhibitor treatment.
Main Results:
- GINS2 was overexpressed in PC specimens and associated with larger tumor size, advanced T stage, vascular invasion, and poorer prognosis.
- GINS2 overexpression promoted EMT in vitro, enhancing cell motility and activating EMT and ERK/MAPK signaling pathways.
- GINS2 silencing inhibited EMT, and its effects on EMT and metastasis in vivo were reversed by a MEK inhibitor, indicating a role in ERK/MAPK activation.
Conclusions:
- GINS2 overexpression is a significant factor in pancreatic cancer progression, correlating with advanced clinical stages and poor patient survival.
- GINS2 promotes EMT in pancreatic cancer through the activation of the ERK/MAPK signaling pathway, both in vitro and in vivo.
- Targeting the GINS2-ERK/MAPK axis may represent a potential therapeutic strategy for pancreatic cancer.
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