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Li J, Ge H, Xu Y, Xie J, Karim N, Yan F, Mo J, Chen W. Chlorogenic acid alleviates oxidative damage in hepatocytes by regulating miR-199a-5p/GRP78 axis. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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2
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Baicalin Induced Apoptosis of Human Cholangiocarcinoma Cell through Activating AMPK/mTORC1/p70S6K Signaling Pathway. Bull Exp Biol Med 2022; 173:366-370. [DOI: 10.1007/s10517-022-05550-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Indexed: 10/17/2022]
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3
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Pua LJW, Mai CW, Chung FFL, Khoo ASB, Leong CO, Lim WM, Hii LW. Functional Roles of JNK and p38 MAPK Signaling in Nasopharyngeal Carcinoma. Int J Mol Sci 2022; 23:ijms23031108. [PMID: 35163030 PMCID: PMC8834850 DOI: 10.3390/ijms23031108] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 02/05/2023] Open
Abstract
c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase (MAPK) family members integrate signals that affect proliferation, differentiation, survival, and migration in a cell context- and cell type-specific way. JNK and p38 MAPK activities are found upregulated in nasopharyngeal carcinoma (NPC). Studies have shown that activation of JNK and p38 MAPK signaling can promote NPC oncogenesis by mechanisms within the cancer cells and interactions with the tumor microenvironment. They regulate multiple transcription activities and contribute to tumor-promoting processes, ranging from cell proliferation to apoptosis, inflammation, metastasis, and angiogenesis. Current literature suggests that JNK and p38 MAPK activation may exert pro-tumorigenic functions in NPC, though the underlying mechanisms are not well documented and have yet to be fully explored. Here, we aim to provide a narrative review of JNK and p38 MAPK pathways in human cancers with a primary focus on NPC. We also discuss the potential therapeutic agents that could be used to target JNK and p38 MAPK signaling in NPC, along with perspectives for future works. We aim to inspire future studies further delineating JNK and p38 MAPK signaling in NPC oncogenesis which might offer important insights for better strategies in diagnosis, prognosis, and treatment decision-making in NPC patients.
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Affiliation(s)
- Lesley Jia Wei Pua
- School of Postgraduate Studies, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (L.J.W.P.); (C.-O.L.)
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
| | - Chun-Wai Mai
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
| | - Felicia Fei-Lei Chung
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway 47500, Malaysia;
| | - Alan Soo-Beng Khoo
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
| | - Chee-Onn Leong
- School of Postgraduate Studies, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (L.J.W.P.); (C.-O.L.)
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
- AGTC Genomics, Bukit Jalil, Kuala Lumpur 57000, Malaysia
| | - Wei-Meng Lim
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
- School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Correspondence: (W.-M.L.); (L.-W.H.)
| | - Ling-Wei Hii
- Center for Cancer and Stem Cell Research, Development and Innovation (IRDI), Institute for Research, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (A.S.-B.K.)
- School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Correspondence: (W.-M.L.); (L.-W.H.)
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4
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Wu J, Yang F, Zhang X, Chen G, Zou J, Yin L, Yang D. Hydrogen sulfide inhibits endoplasmic reticulum stress through the GRP78/mTOR pathway in rat chondrocytes subjected to oxidative stress. Int J Mol Med 2021; 47:34. [PMID: 33537813 PMCID: PMC7891823 DOI: 10.3892/ijmm.2021.4867] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 12/29/2020] [Indexed: 12/23/2022] Open
Abstract
The activation of oxidative stress is a primary cause of chondrocyte apoptosis in osteoarthritis (OA). The 78‑kDa glucose‑regulated protein (GRP78)/mammalian target of rapamycin (mTOR) signaling pathway has been demonstrated to be linked with the endoplasmic reticulum (ER) and autophagy. Hydrogen sulfide (H2S) has been reported to exert antioxidant effects. The present study investigated oxidative stress levels via 2',7'‑dichlorofluorescin diacetate and MitoSOX staining, apoptosis rates via flow cytometry and the expression levels of ER stress‑related proteins in GYY4137 (donor of H2S)‑treated chondrocytes (CHs). CHs were isolated from the bilateral hip joints of male rats to examine mitochondrial permeability transition pore opening‑ and mTOR signaling pathway‑related proteins. The results demonstrated that tert‑Butyl hydroperoxide (TBHP) increased CH apoptosis, and treatment with GYY4137 ameliorated TBHP‑mediated the generation of ROS and CH apoptosis. Moreover, TBHP‑treated CHs displayed elevated ER stress sensor expression levels and apoptotic rates; however, the TBHP‑induced protein expression levels were decreased following GYY4137 treatment. In the present study, treatment with either GYY4137 or transfection with GRP78 siRNA both suppressed the activation of p‑P70S6k and p‑mTOR. H2S played an important role in regulating ER stress in TBHP‑stimulated CHs. GYY4137 promoted autophagy, which was accompanied by the inhibition of ER stress. On the whole, the present study demonstrates that TBHP‑induced oxidative stress stimulates ER interactions and CH apoptosis, which are suppressed by exogenous H2S via modulating the GRP78/mTOR signaling pathway.
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Affiliation(s)
- Jianjun Wu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Fan Yang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Xin Zhang
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Guanghua Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jilong Zou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Li Yin
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Dawei Yang
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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5
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Chen C, Nelson LJ, Ávila MA, Cubero FJ. Mitogen-Activated Protein Kinases (MAPKs) and Cholangiocarcinoma: The Missing Link. Cells 2019; 8:cells8101172. [PMID: 31569444 PMCID: PMC6829385 DOI: 10.3390/cells8101172] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/18/2019] [Accepted: 09/25/2019] [Indexed: 02/07/2023] Open
Abstract
In recent years, the incidence of both liver and biliary tract cancer has increased. Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA) are the two most common types of hepatic malignancies. Whereas HCC is the fifth most common malignant tumor in Western countries, the prevalence of CCA has taken an alarming increase from 0.3 to 2.1 cases per 100,000 people. The lack of specific biomarkers makes diagnosis very difficult in the early stages of this fatal cancer. Thus, the prognosis of CCA is dismal and surgery is the only effective treatment, whilst recurrence after resection is common. Even though chemotherapy and radiotherapy may prolong survival in patients with CCA, the 5-year survival rate is still very low—a significant global problem in clinical diagnosis and therapy. The mitogen-activated protein kinase (MAPK) pathway plays an important role in signal transduction by converting extracellular stimuli into a wide range of cellular responses including inflammatory response, stress response, differentiation, survival, and tumorigenesis. Dysregulation of the MAPK cascade involves key signaling components and phosphorylation events that play an important role in tumorigenesis. In this review, we discuss the pathophysiological role of MAPK, current therapeutic options, and the current situation of MAPK-targeted therapies in CCA.
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Affiliation(s)
- Chaobo Chen
- Department of Immunology, Ophthalmology & ENT, Complutense University School of Medicine, 28040 Madrid, Spain.
- de Octubre Health Research Institute (imas12), 28040 Madrid, Spain.
- Department of General Surgery, Wuxi Xishan People's Hospital, Wuxi 214000, China.
| | - Leonard J Nelson
- Institute for Bioengineering (IBioE), School of Engineering, Faraday Building, The University of Edinburgh, Edinburgh EH9 3 JL, Scotland, UK.
| | - Matías A Ávila
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, 31008 Pamplona, Spain.
- Centro de Investigacion Biomedica en Red, Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain.
| | - Francisco Javier Cubero
- Department of Immunology, Ophthalmology & ENT, Complutense University School of Medicine, 28040 Madrid, Spain.
- de Octubre Health Research Institute (imas12), 28040 Madrid, Spain.
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6
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Chen B, Zheng Y, Zhu J, Liang Y. SHARPIN overexpression promotes TAK1 expression and activates JNKs and NF-κB pathway in Mycosis Fungoides. Exp Dermatol 2019; 28:1279-1288. [PMID: 31461795 DOI: 10.1111/exd.14026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 08/02/2019] [Accepted: 08/23/2019] [Indexed: 12/16/2022]
Abstract
Mycosis Fungoides (MF) is the most common subtype of cutaneous T-cell lymphomas (CTCL). Shank-associated RH domain-interacting protein (SHARPIN) participates in the initiation and development of multiple tumors. However, the clinical significance of SHARPIN in MF hasn't been investigated. The c-Jun N-terminal kinases (JNKs) pathway is a member of mitogen-activated protein kinases (MAPKs). Its dysregulation is observed in various tumors including CTCL, whereas the roles of JNKs pathway in MF remain largely unknown, the relationship between SHARPIN and JNKs pathway remains elusive. Herein, we showed that upregulated expression of SHARPIN was related to poor prognosis of MF patients. In vitro experiments found increased SHARPIN expression and activation of JNKs pathway in MF cell line MyLa2059. SHARPIN induced transforming growth factor β activated kinase-1 (TAK1) transcription, which is an upstream kinase of JNKs, NF-κB and p38 pathway, leading to activation of JNKs and NF-κB pathway. SHARPIN also promoted p38 signalling independent of TAK1 expression, by which overexpression of SHARPIN induced cell proliferation, inhibited apoptosis, enhanced migration and invasion of MyLa2059. Our work provided direct evidences for effects of SHARPIN on JNKs and NF-κB pathway, and the contributing roles of JNKs, NF-κB and p38 pathway regulated by SHARPIN in the development of MF.
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Affiliation(s)
- Biao Chen
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yan Zheng
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Jingna Zhu
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yanhua Liang
- Department of Dermatology, Cosmetology and Venereology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
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7
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Yu W, Xiang Y, Luo G, Zhao X, Xiao B, Cheng Y, Feng C, Duan C, Xia X, Wong VKW, Dai R. Salubrinal Enhances Doxorubicin Sensitivity in Human Cholangiocarcinoma Cells Through Promoting DNA Damage. Cancer Biother Radiopharm 2018; 33:258-265. [PMID: 29957018 DOI: 10.1089/cbr.2018.2447] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Cholangiocarcinoma (CCA) is a highly malignant and aggressive tumor of the bile duct that arises from epithelial cells. Chemotherapy is an important treatment strategy for CCA patients, but its efficacy remains limited due to drug resistance. Salubrinal, an inhibitor of eukaryotic translation initiation factor 2 alpha (eIF2α), has been reported to affect antitumor activities in cancer chemotherapy. In this study, the authors investigated the effect of salubrinal on the chemosensitivity of doxorubicin in CCA cells. They showed that doxorubicin induces CCA cell death in a dose- and time-dependent manner. Doxorubicin triggers reactive oxygen species (ROS) generation and induces DNA damage in CCA cells. In addition, ROS inhibitor N-acetylcysteine (NAC) pretreatment inhibits doxorubicin-induced CCA cell death. Importantly, these data demonstrate a synergistic death induction effect contributed by the combination of salubrinal and doxorubicin in CCA cells. It is notable that salubrinal promotes doxorubicin-induced ROS production and DNA damage in CCA cells. Taken together, these data suggest that salubrinal enhances the sensitivity of doxorubicin in CCA cells through promoting ROS-mediated DNA damage.
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Affiliation(s)
- Wenjing Yu
- 1 State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology , Taipei, China .,2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Yuancai Xiang
- 2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Guosong Luo
- 3 Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University , Luzhou, China
| | - Xiaofang Zhao
- 2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Bin Xiao
- 2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Ying Cheng
- 2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Chunhong Feng
- 3 Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University , Luzhou, China
| | - Chunyan Duan
- 2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
| | - Xianming Xia
- 3 Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University , Luzhou, China
| | - Vincent Kam Wai Wong
- 1 State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology , Taipei, China
| | - Rongyang Dai
- 1 State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology , Taipei, China .,2 Department of Biochemistry and Molecular Biology, Southwest Medical University , Luzhou, China
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8
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Zhao X, Luo G, Cheng Y, Yu W, Chen R, Xiao B, Xiang Y, Feng C, Fu W, Duan C, Yao F, Xia X, Tao Q, Wei M, Dai R. Compound C induces protective autophagy in human cholangiocarcinoma cells via Akt/mTOR‐independent pathway. J Cell Biochem 2018; 119:5538-5550. [DOI: 10.1002/jcb.26723] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/24/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Xiaofang Zhao
- Liver Diseases LaboratorySouthwest Medical UniversityLuzhouSichuanChina
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Guosong Luo
- Liver Diseases LaboratorySouthwest Medical UniversityLuzhouSichuanChina
- Department of Hepatobiliary Surgery of the Affiliated HospitalSouthwest Medical UniversityLuzhouSichuanChina
| | - Ying Cheng
- Liver Diseases LaboratorySouthwest Medical UniversityLuzhouSichuanChina
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Wenjing Yu
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Run Chen
- Department of Public HealthSouthwest Medical UniversityLuzhouSichuanChina
| | - Bin Xiao
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Yuancai Xiang
- Liver Diseases LaboratorySouthwest Medical UniversityLuzhouSichuanChina
| | - Chunhong Feng
- Department of Hepatobiliary Surgery of the Affiliated HospitalSouthwest Medical UniversityLuzhouSichuanChina
| | - Wenguang Fu
- Department of Hepatobiliary Surgery of the Affiliated HospitalSouthwest Medical UniversityLuzhouSichuanChina
| | - Chunyan Duan
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Fuli Yao
- Department of Biochemistry and Molecular BiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Xianming Xia
- Department of Hepatobiliary Surgery of the Affiliated HospitalSouthwest Medical UniversityLuzhouSichuanChina
| | - Qinghua Tao
- MOE Key Laboratory of Protein SciencesTsinghua University School of Life SciencesBeijingChina
| | - Mei Wei
- Department of Liver Diseases of the Affiliated Hospital of Chinese Traditional MedicineSouthwest Medical UniversityLuzhouSichuanChina
| | - Rongyang Dai
- Liver Diseases LaboratorySouthwest Medical UniversityLuzhouSichuanChina
- Department of Liver Diseases of the Affiliated Hospital of Chinese Traditional MedicineSouthwest Medical UniversityLuzhouSichuanChina
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9
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Synergistic antitumor activity of the combination of salubrinal and rapamycin against human cholangiocarcinoma cells. Oncotarget 2018; 7:85492-85501. [PMID: 27863431 PMCID: PMC5356752 DOI: 10.18632/oncotarget.13408] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/27/2016] [Indexed: 12/20/2022] Open
Abstract
Less is known about the roles of eukaryotic initiation factor alpha (eIF2α) in cholangiocarcinoma (CCA). Here, we report that eIF2α inhibitor salubrinal inhibits the proliferation of human CCA cells. Clinical application of mammalian target of rapamycin (mTOR) inhibitors only has moderate antitumor efficacy. Therefore, combination approaches may be required for effective clinical use of mTOR inhibitors. Here, we investigated the efficacy of the combination of salubrinal and rapamycin in the treatment of CCA. Our data demonstrate a synergistic antitumor effect of the combination of salubrinal and rapamycin against CCA cells. Rapamycin significantly inhibits the proliferation of CCA cells. However, rapamycin initiates a negative feedback activation of Akt. Inhibition of Akt by salubrinal potentiates the efficacy of rapamycin both in vitro and in vivo. Additionally, rapamycin treatment results in the up-regulation of Bcl-xL in a xenograft mouse model. It is notable that salubrinal inhibits rapamycin-induced Bcl-xL up-regulation in vivo. Taken together, our data suggest that salubrinal and rapamycin combination might be a new and effective strategy for the treatment of CCA.
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Abstract
JNKs (c-Jun N-terminal kinases) belong to mitogen-activated protein kinases' family and become activated by several growth factors, stress, radiation, and other extracellular signals. In turn, JNK activation results in phosphorylation of downstream molecules involved in many normal cellular processes. Nevertheless, recent data have linked JNK signaling with several pathological conditions, including neurodegenerative diseases, inflammation, and cancer. The role of JNK in cancer remains controversial. Initially, JNK was thought to play a rather oncosuppressive role by mediating apoptosis in response to stress stimuli, inflammatory, or oncogenic signals. However, a number of studies have implicated JNK in malignant transformation and tumor growth. The contradictory functions of JNK in cancer may be due to the diversity of JNK upstream and downstream signaling and are under intensive investigation. This review summarizes current literature focusing on the significance of JNK pathway in cancer development and progression, particularly addressing its role in oral cancer. Understanding the complexity of JNK signaling has the potential to elucidate important molecular aspects of oral cancer, possibly leading to development of novel and individualized therapeutic strategies.
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Affiliation(s)
- Ioannis Gkouveris
- 1 Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Nikolaos G Nikitakis
- 2 Department of Oral Pathology and Medicine, Dental School, National and Kapodistrian University of Athens, Athens, Greece
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Kim H, Hwang H, Lee H, Hong HJ. L1 Cell Adhesion Molecule Promotes Migration and Invasion via JNK Activation in Extrahepatic Cholangiocarcinoma Cells with Activating KRAS Mutation. Mol Cells 2017; 40:363-370. [PMID: 28535665 PMCID: PMC5463045 DOI: 10.14348/molcells.2017.2282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 04/10/2017] [Accepted: 04/28/2017] [Indexed: 02/07/2023] Open
Abstract
Extrahepatic cholangiocarcinoma (ECC), a malignant tumor of biliary origin, has a poor prognosis with limited treatment options. The KRAS oncogene is the most commonly mutated gene in ECC and one of the factors that predicts a poor prognosis and low survival rate. L1 cell adhesion molecule (L1CAM) is expressed in ECC cells and acts as an independent poor prognostic factor in predicting patient survival. In this study we investigate the functional significance of L1CAM in ECC cells with activating KRAS mutation. We selected an ECC cell line, EGI-1, with activating KRAS mutation, and then confirmed its expression of L1CAM by RT-PCR, western blot analysis, and flow cytometry. The suppression of L1CAM expression (using a specific lentivirus-delivered shRNA) significantly decreased the migratory and invasive properties of EGI-1 cells, without altering their proliferation or survival. Analyses of signaling effectors in L1CAM-depleted and control EGI-1 cells indicated that L1CAM suppression decreased the levels of both phosphorylated MKK4 and total MKK4, together with c-Jun N-terminal kinase (JNK) phosphorylation. Further, exposure to a JNK inhibitor (SP600125) decreased migration and invasion of EGI-1 cells. These results suggest that L1CAM promotes cellular migration and invasion via the induction of MKK4 expression, leading to JNK activation. Our study is the first to demonstrate a functional role for L1CAM in ECC carrying the activating KRAS mutation. Given that KRAS is the most commonly mutated oncogene in ECC, L1CAM may serve as an attractive therapeutic target for ECC cells with activating KRAS mutation.
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Affiliation(s)
- Haejung Kim
- Department of Biology, College of National Science, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
- Institute of Bioscience and Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Haein Hwang
- Department of Systems Immunology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Hansoo Lee
- Department of Biology, College of National Science, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Hyo Jeong Hong
- Institute of Bioscience and Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
- Department of Systems Immunology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
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12
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Co-amplification of phosphoinositide 3-kinase enhancer A and cyclin-dependent kinase 4 triggers glioblastoma progression. Oncogene 2017; 36:4562-4572. [PMID: 28368413 PMCID: PMC5552418 DOI: 10.1038/onc.2017.67] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 01/23/2017] [Accepted: 02/12/2017] [Indexed: 12/15/2022]
Abstract
Glioblastoma (GBM) is the most common primary brain tumor and has a dismal prognosis. Amplification of chromosome 12q13-q15 (Cyclin-dependent kinase 4 (CDK4) amplicon) is frequently observed in numerous human cancers including GBM. Phosphoinositide 3-kinase enhancer (PIKE) is a group of GTP-binding proteins that belong to the subgroup of centaurin GTPase family, encoded by CENTG1 located in CDK4 amplicon. However, the pathological significance of CDK4 amplicon in GBM formation remains incompletely understood. In the current study, we show that co-expression of PIKE-A and CDK4 in TP53/PTEN double knockout GBM mouse model additively shortens the latency of glioma onset and survival compared to overexpression of these genes alone. Consequently, p-mTOR, p-Akt and p-ERK pathways are highly upregulated in the brain tumors, in alignment with their oncogenic activities by CDK4 and PIKE-A stably transfected in GBM cell lines. Hence, our findings support that PIKE amplification or overexpression coordinately acts with CDK4 to drive GBM tumorigenesis.
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13
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Zhou X, Xing X, Zhang S, Liu L, Wang C, Li L, Ji Q, Liu H. Glucose-regulated protein 78 contributes to the proliferation and tumorigenesis of human colorectal carcinoma via AKT and ERK pathways. Oncol Rep 2016; 36:2723-2730. [PMID: 27634156 DOI: 10.3892/or.2016.5097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/28/2016] [Indexed: 11/06/2022] Open
Abstract
Glucose-regulated protein 78 (GRP78), a molecular chaperon in the endoplasmic reticulum (ER), is overexpressed in a variety of tumor types and plays a critical role in cancer cell proliferation, migration, invasion and drug resistance. However, the mechanisms underlying the role of GRP78 in tumor carcinogenesis remain largely unknown. In the present study, we found that GRP78 knockdown in colorectal carcinoma (CRC) cells significantly inhibited cell proliferation, colony formation and tumorigenesis in vitro and in vivo. The proliferation inhibition of CRC cells by GRP78 knockdown was associated with an S phase arrest, a reduced G1/S transition, and a downregulation of phosphorylation of AKT and ERK1/2, key cell cycle regulatory proteins. In addition, GRP78 knockdown enhanced the apoptosis induced by 5-fluorouracil (5-FU) in CRC cells. Taken together, our results indicate that GRP78 plays an important role in the development and progression of CRC and may have therapeutic potential for CRC patients.
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Affiliation(s)
- Xuan Zhou
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiaoming Xing
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Shuping Zhang
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, Shandong 266000, P.R. China
| | - Lili Liu
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Chengqin Wang
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Lin Li
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qiuxia Ji
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Huamin Liu
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
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14
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Li F, Zheng X, Liu Y, Li P, Liu X, Ye F, Zhao T, Wu Q, Jin X, Li Q. Different Roles of CHOP and JNK in Mediating Radiation-Induced Autophagy and Apoptosis in Breast Cancer Cells. Radiat Res 2016; 185:539-48. [PMID: 27135967 DOI: 10.1667/rr14344.1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Unfolded protein response (UPR) is comprised of complex and conserved stress pathways that function as a short-term adaptive mechanism to reduce levels of unfolded or misfolded proteins and maintain homeostasis in the endoplasmic reticulum (ER). UPR can be triggered by prolonged or persistent ER stress under many physiological or pathological conditions, including radiation exposure. Radiation-induced ER stress elicits autophagy and apoptosis in cancer cells, where C/EBP homologous protein (CHOP) and c-Jun NH2-terminal kinase (JNK) may play crucial roles. However, the specific mechanisms that regulate autophagy and apoptosis through CHOP and JNK after radiation exposure and how the balance of these activities determines the cellular radiosensitivity remain largely unclear. In this study, we found that exposure to X-ray radiation induced ER stress, UPR and high expression of CHOP and JNK. Furthermore, autophagy and apoptosis occurred in sequential order when breast cancer MDA-MB-231 and MCF-7 cells were exposed to X-ray radiation. CHOP gene knockdown with RNA interference inhibited autophagy and enhanced radiosensitivity in MDA-MB-231 cells, while impacting apoptosis and subsequently increasing radioresistance in MCF-7 cells. However, treatment with JNK inhibitor decreased autophagy while promoting apoptosis, thereby leading to radiosensitivity in both cell lines. Our results indicate that CHOP mediates radiation-induced autophagy and apoptosis in a cellular environment. Importantly, the functional consistency of regulating apoptosis and autophagy in these two irradiated breast cancer cell lines suggests that JNK may be more useful as a potential target for maximizing the efficacy of radiation therapy for breast cancers.
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Affiliation(s)
- Feifei Li
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and.,d University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaogang Zheng
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and.,d University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Liu
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and.,d University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Li
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and
| | - Xiongxiong Liu
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and
| | - Fei Ye
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and.,d University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Zhao
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and
| | - Qingfeng Wu
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiaodong Jin
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and
| | - Qiang Li
- a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;,b Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;,c Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; and
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Messoussi A, Feneyrolles C, Bros A, Deroide A, Daydé-Cazals B, Chevé G, Van Hijfte N, Fauvel B, Bougrin K, Yasri A. Recent progress in the design, study, and development of c-Jun N-terminal kinase inhibitors as anticancer agents. ACTA ACUST UNITED AC 2014; 21:1433-43. [PMID: 25442375 DOI: 10.1016/j.chembiol.2014.09.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/19/2014] [Accepted: 09/05/2014] [Indexed: 12/11/2022]
Abstract
The c-Jun N-terminal kinase (JNK) family, with its three members JNK1, JNK2, and JNK3, is a subfamily of mitogen-activated protein kinases. Involved in many aspects of cellular processes, JNK has been also associated with pathological states such as neurodegenerative diseases, inflammation, and cancers. In oncology, each isoform plays a distinct role depending on the context of the targeted tissue/organ, the tumor stage, and, most likely, the signaling pathway activated upstream. Consequently, the current challenge in finding new successful anti-JNK therapies is to design isoform-selective inhibitors of the JNKs. In this review, a particular focus is given to the JNK inhibitors that have been developed thus far when examining 3D structures of various JNK-inhibitor complexes. Using current data regarding structure-activity relationships and medicinal chemistry approaches, our objective is to provide a better understanding of the design and development of selective JNK inhibitors in the present and future.
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Affiliation(s)
- Abdellah Messoussi
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France; Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Université Mohammed V-Agdal, Faculté des Sciences, B.P. 1014 Rabat, Morocco
| | | | - Aurélie Bros
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | - Arthur Deroide
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | | | - Gwénaël Chevé
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | | | - Bénédicte Fauvel
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | - Khalid Bougrin
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Université Mohammed V-Agdal, Faculté des Sciences, B.P. 1014 Rabat, Morocco
| | - Aziz Yasri
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France.
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