EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation

Aims: The aim of this study was to reveal the specific molecular mechanisms by which DENND1A accepts EGF signaling and activates Rab35 in gastric cancer.Methods: The expression of proteins related to DENND1A was examined by western blot analysis. Activation of Rab35 was assessed by GST-pulldown. The...

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Main Authors: Bixing Ye, Biao Duan, Wenjie Deng, Yueyuan Wang, Yan Chen, Jie Cui, Shixiu Sun, Yujie Zhang, Jun Du, Luo Gu, Lin Lin, Yurong Tang
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-11-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fphar.2018.01343/full
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author Bixing Ye
Biao Duan
Wenjie Deng
Yueyuan Wang
Yan Chen
Jie Cui
Jie Cui
Shixiu Sun
Yujie Zhang
Yujie Zhang
Jun Du
Jun Du
Luo Gu
Luo Gu
Luo Gu
Lin Lin
Yurong Tang
author_facet Bixing Ye
Biao Duan
Wenjie Deng
Yueyuan Wang
Yan Chen
Jie Cui
Jie Cui
Shixiu Sun
Yujie Zhang
Yujie Zhang
Jun Du
Jun Du
Luo Gu
Luo Gu
Luo Gu
Lin Lin
Yurong Tang
author_sort Bixing Ye
collection DOAJ
description Aims: The aim of this study was to reveal the specific molecular mechanisms by which DENND1A accepts EGF signaling and activates Rab35 in gastric cancer.Methods: The expression of proteins related to DENND1A was examined by western blot analysis. Activation of Rab35 was assessed by GST-pulldown. The interaction of DENND1A and Grb2 was assessed by GST-pulldown and co-immunoprecipitation assays. The relationship between DENND1A and cell migration and invasion was detected using wound healing and transwell by gene overexpression and RNA interference.Results: EGF stimulation significantly promoted cell migration, whereas transfection with siRab35 partially inhibited EGF-promoted cell migration. DENND1A is also involved in these processes and active Rab35. Moreover, DENND1A binds to the N-terminal and C-terminal SH3 domains of Grb2 through PRD. Of special interest is the observation that EGFR can recruit Grb2-DENND1A complex under EGF stimulation. Further results reveal that the higher the expression of DENND1A, the shorter progression-free survival of gastric cancer patients.Conclusion: In summary, we confirmed that EGF-Grb2-DENND1A-Rab35 signaling pathway with the interaction of DENND1A and Grb2 as a regulatory center could regulate gastric cancer cell migration and invasion. Ultimately, the expression level of DENND1A predicts the survival status of gastric cancer patients and may become one of the important targets for the treatment of gastric cancer.
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spelling doaj.art-700cc349d0c44c8e87ec8891ddad51562022-12-21T17:33:35ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122018-11-01910.3389/fphar.2018.01343407091EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex FormationBixing Ye0Biao Duan1Wenjie Deng2Yueyuan Wang3Yan Chen4Jie Cui5Jie Cui6Shixiu Sun7Yujie Zhang8Yujie Zhang9Jun Du10Jun Du11Luo Gu12Luo Gu13Luo Gu14Lin Lin15Yurong Tang16Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaDepartment of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, ChinaDepartment of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Xuzhou Medical University, Xuzhou, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaJiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaJiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, ChinaDepartment of Physiology, Nanjing Medical University, Nanjing, ChinaDepartment of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, ChinaJiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, ChinaDepartment of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaAims: The aim of this study was to reveal the specific molecular mechanisms by which DENND1A accepts EGF signaling and activates Rab35 in gastric cancer.Methods: The expression of proteins related to DENND1A was examined by western blot analysis. Activation of Rab35 was assessed by GST-pulldown. The interaction of DENND1A and Grb2 was assessed by GST-pulldown and co-immunoprecipitation assays. The relationship between DENND1A and cell migration and invasion was detected using wound healing and transwell by gene overexpression and RNA interference.Results: EGF stimulation significantly promoted cell migration, whereas transfection with siRab35 partially inhibited EGF-promoted cell migration. DENND1A is also involved in these processes and active Rab35. Moreover, DENND1A binds to the N-terminal and C-terminal SH3 domains of Grb2 through PRD. Of special interest is the observation that EGFR can recruit Grb2-DENND1A complex under EGF stimulation. Further results reveal that the higher the expression of DENND1A, the shorter progression-free survival of gastric cancer patients.Conclusion: In summary, we confirmed that EGF-Grb2-DENND1A-Rab35 signaling pathway with the interaction of DENND1A and Grb2 as a regulatory center could regulate gastric cancer cell migration and invasion. Ultimately, the expression level of DENND1A predicts the survival status of gastric cancer patients and may become one of the important targets for the treatment of gastric cancer.https://www.frontiersin.org/article/10.3389/fphar.2018.01343/fullRab35DENND1AGrb2interactioncell migrationgastric cancer
spellingShingle Bixing Ye
Biao Duan
Wenjie Deng
Yueyuan Wang
Yan Chen
Jie Cui
Jie Cui
Shixiu Sun
Yujie Zhang
Yujie Zhang
Jun Du
Jun Du
Luo Gu
Luo Gu
Luo Gu
Lin Lin
Yurong Tang
EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
Frontiers in Pharmacology
Rab35
DENND1A
Grb2
interaction
cell migration
gastric cancer
title EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
title_full EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
title_fullStr EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
title_full_unstemmed EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
title_short EGF Stimulates Rab35 Activation and Gastric Cancer Cell Migration by Regulating DENND1A-Grb2 Complex Formation
title_sort egf stimulates rab35 activation and gastric cancer cell migration by regulating dennd1a grb2 complex formation
topic Rab35
DENND1A
Grb2
interaction
cell migration
gastric cancer
url https://www.frontiersin.org/article/10.3389/fphar.2018.01343/full
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