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Published on: December 22, 2020
Roles of Fyn in pancreatic cancer metastasis
Zhi-Yu Chen1, Lei Cai, Ping Bie
1Hepatobiliary Surgery Institute, Southwest Hospital, The Third Military Medical University, Chongqing, China.
Background And Aims:
Src family kinases have been suggested to be associated with the metastasis of tumors, but their related mechanisms remain unclear. The aims of the present study were to assess the possible mechanisms by which the inhibition of Fyn activation regulates pancreatic cancer metastasis.
Methods:
We examined the expressions of Fyn in human pancreatic cancer tissues by immunohistochemistry and systematically investigated the relationship between Fyn expression and pancreatic cancer metastasis. A nude mouse xenograft model induced by BxPC3 cells with or without the inhibition of Fyn activation was used to explore the effect of the inhibition of Fyn on metastasis in vivo. Methyl thiazolyl tetrazolium and terminal deoxynucleotidyl transferase-labeling assays were used to examine the effect of the inhibition of Fyn on the cell proliferation of BxPC3 pancreatic cancer cells in vitro. Reverse transcription polymerase chain reaction and Western blot analysis were performed to explore the possible mechanism of Fyn-induced metastasis.
Results:
We found that the upregulation of Fyn expression was correlated with human pancreatic cancer metastasis. In BxPC3 pancreatic cancer cells, the inhibition of Fyn activation by kinase-dead Fyn transfection decreased liver metastasis in nude mice. Further analyses showed that Fyn activity modulated pancreatic cell metastasis through the regulation of proliferation and apoptosis.
Conclusions:
Our results suggest a possible mechanism by which Fyn activity regulates cell proliferation and apoptosis that exerts an effect on pancreatic cancer metastasis.
Insights
Inhibiting Fyn kinase activation reduces pancreatic cancer metastasis by regulating cell proliferation and apoptosis. This study clarifies Fyn
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Src family kinases, including Fyn, are implicated in tumor metastasis.
- Mechanisms linking Fyn activation to pancreatic cancer metastasis require elucidation.
Purpose of the Study:
- To investigate the role of Fyn activation in pancreatic cancer metastasis.
- To explore the molecular mechanisms by which Fyn inhibition affects metastasis.
Main Methods:
- Immunohistochemistry to assess Fyn expression in human pancreatic cancer tissues.
- Nude mouse xenograft models to evaluate Fyn inhibition's effect on metastasis in vivo.
- In vitro assays (MTT, TUNEL) for cell proliferation and apoptosis, and molecular analyses (RT-PCR, Western blot) to explore mechanisms.
Main Results:
- Upregulated Fyn expression correlates with pancreatic cancer metastasis.
- Inhibition of Fyn activation in BxPC3 cells reduced liver metastasis in mice.
- Fyn activity influences pancreatic cancer cell metastasis by modulating proliferation and apoptosis.
Conclusions:
- Fyn kinase activity plays a significant role in pancreatic cancer metastasis.
- Modulating Fyn activity through inhibition offers a potential therapeutic strategy.
- Fyn regulates metastasis via control of cell proliferation and apoptosis pathways.
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