1
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Ma YN, Jiang XM, Hu XQ, Wang L, Gao JJ, Liu H, Qi FH, Song PP, Tang W. Cinobufacini Inhibits Survival and Metastasis of Hepatocellular Carcinoma via c-Met Signaling Pathway. Chin J Integr Med 2024:10.1007/s11655-024-4111-z. [PMID: 39028451 DOI: 10.1007/s11655-024-4111-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVE To investigate the anti-tumor effects of cinobufacini (CINO) on hepatocellular carcinoma (HCC) induced by des-gamma-carboxy-prothrombin (DCP) and to uncover the underlying mechanisms. METHODS The inhibitory effect of CINO on HCC cell proliferation was evaluated using the cell counting kit-8 method, and the apoptosis rate was quantified using flow cytometry. Immunofluorescence and Western blot analyses were used to investigate the differential expression of proteins associated with cell growth, apoptosis, migration, and invasion pathways after CINO treatment. The therapeutic potential of CINO for HCC was confirmed, and the possibility of combining cinobufacini with c-Met inhibitor for the treatment of primary HCC was further validated by in vivo experiments. RESULTS Under the induction of DCP, CINO inhibited the activity of HCC cells, induced apoptosis, and inhibited migration and invasion. Upon the induction of DCP, CINO regulated c-Met activation and the activation of the phosphatidylinositol-3 kinase/protein kinase B (PI3K/AKT) and mitogen-activated protein kinase kinase/extracellular signal-regulated kinase (MEK/ERK) pathways. In a mouse model of HCC, CINO exhibited significant antitumor effects by inhibiting the phosphorylation of c-Met and the downstream PI3K/AKT and MEK/ERK pathways in tumor tissues. CONCLUSIONS CINO inhibited HCC cell growth, promoted apoptosis, and suppressed HCC cell invasion and migration by targeting c-Met and PI3K/AKT and MEK/ERK signaling pathways under DCP induction.
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Affiliation(s)
- Ya-Nan Ma
- Department of Gastroenterology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
| | - Xue-Mei Jiang
- Department of Gastroenterology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Xi-Qi Hu
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
| | - Ling Wang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Jian-Jun Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, Shandong Province, 266021, China
| | - Hui Liu
- Central South University, Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, 570208, China
| | - Fang-Hua Qi
- Traditional Chinese Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China.
| | - Pei-Pei Song
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, 162-8655, Japan.
| | - Wei Tang
- International Health Care Center, National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
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2
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Xu X, Deng L, Tang Y, Li J, Zhong T, Hao X, Fan Y, Mu S. Cytostatic Activity of Sanguinarine and a Cyanide Derivative in Human Erythroleukemia Cells Is Mediated by Suppression of c-MET/MAPK Signaling. Int J Mol Sci 2023; 24:ijms24098113. [PMID: 37175820 PMCID: PMC10179035 DOI: 10.3390/ijms24098113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/18/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Sanguinarine (1) is a natural product with significant pharmacological effects. However, the application of sanguinarine has been limited due to its toxic side effects and a lack of clarity regarding its molecular mechanisms. To reduce the toxic side effects of sanguinarine, its cyanide derivative (1a) was first designed and synthesized in our previous research. In this study, we confirmed that 1a presents lower toxicity than sanguinarine but shows comparable anti-leukemia activity. Further biological studies using RNA-seq, lentiviral transfection, Western blotting, and flow cytometry analysis first revealed that both compounds 1 and 1a inhibited the proliferation and induced the apoptosis of leukemic cells by regulating the transcription of c-MET and then suppressing downstream pathways, including the MAPK, PI3K/AKT and JAK/STAT pathways. Collectively, the data indicate that 1a, as a potential anti-leukemia lead compound regulating c-MET transcription, exhibits better safety than 1 while maintaining cytostatic activity through the same mechanism as 1.
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Affiliation(s)
- Xinglian Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
| | - Lulu Deng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
| | - Yaling Tang
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
- Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming 650201, China
| | - Jiang Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
| | - Ting Zhong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
- Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming 650201, China
| | - Yanhua Fan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
| | - Shuzhen Mu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Beijin Road, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Beijin Road, Guiyang 550014, China
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3
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Chowdhary S, Raza A, Seboletswe P, Cele N, Sharma AK, Singh P, Kumar V. Cu-promoted synthesis of Indolo[2,3-b]quinoxaline-Mannich adducts via three-component reaction and their anti-proliferative evaluation on colorectal and ovarian cancer cells. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Du F, Sun H, Sun F, Yang S, Tan H, Li X, Chai Y, Jiang Q, Han D. Knockdown of TANK-Binding Kinase 1 Enhances the Sensitivity of Hepatocellular Carcinoma Cells to Molecular-Targeted Drugs. Front Pharmacol 2022; 13:924523. [PMID: 35747750 PMCID: PMC9209752 DOI: 10.3389/fphar.2022.924523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 12/25/2022] Open
Abstract
The protein kinase, TANK-binding kinase 1 (TBK1), not only regulates various biological processes but also functions as an important regulator of human oncogenesis. However, the detailed function and molecular mechanisms of TBK1 in hepatocellular carcinoma (HCC), especially the resistance of HCC cells to molecular-targeted drugs, are almost unknown. In the present work, the role of TBK1 in regulating the sensitivity of HCC cells to molecular-targeted drugs was measured by multiple assays. The high expression of TBK1 was identified in HCC clinical specimens compared with paired non-tumor tissues. The high level of TBK1 in advanced HCC was associated with a poor prognosis in patients with advanced HCC who received the molecular-targeted drug, sorafenib, compared to patients with advanced HCC patients and a low level of TBK1. Overexpression of TBK1 in HCC cells induced their resistance to molecular-targeted drugs, whereas knockdown of TBK1 enhanced the cells’ sensitivity to molecular-targeted dugs. Regarding the mechanism, although overexpression of TBK1 enhanced expression levels of drug-resistance and pro-survival-/anti-apoptosis-related factors, knockdown of TBK1 repressed the expression of these factors in HCC cells. Therefore, TBK1 is a promising therapeutic target for HCC treatment and knockdown of TBK1 enhanced sensitivity of HCC cells to molecular-targeted drugs.
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Affiliation(s)
- Fengxia Du
- Department of Pharmacy, Medical Support Center of PLA General Hospital, Beijing, China
| | - Huiwei Sun
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, Institute of Infectious Diseases, Beijing, China
| | - Fang Sun
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, Institute of Infectious Diseases, Beijing, China
| | - Shiwei Yang
- Organ Transplant Center and Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Haidong Tan
- Organ Transplant Center and Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Xiaojuan Li
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, Institute of Infectious Diseases, Beijing, China
| | - Yantao Chai
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, Institute of Infectious Diseases, Beijing, China
| | - Qiyu Jiang
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, Institute of Infectious Diseases, Beijing, China
- *Correspondence: Dongdong Han, ; Qiyu Jiang,
| | - Dongdong Han
- Organ Transplant Center and Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing, China
- *Correspondence: Dongdong Han, ; Qiyu Jiang,
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5
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EGFR/MET promotes hepatocellular carcinoma metastasis by stabilizing tumor cells and resisting to RTKs inhibitors in circulating tumor microemboli. Cell Death Dis 2022; 13:351. [PMID: 35428350 PMCID: PMC9012802 DOI: 10.1038/s41419-022-04796-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 12/24/2022]
Abstract
The receptor tyrosine kinases (RTKs) family is well-recognized as vital targets for the treatment of hepatocarcinoma cancer (HCC) clinically, whereas the survival benefit of target therapy sorafenib is not satisfactory for liver cancer patients due to metastasis. EGFR and MET are two molecules of the RTK family that were related to the survival time of liver cancer patients and resistance to targeted therapy in clinical reports. However, the mechanism and clinical therapeutic value of EGFR/MET in HCC metastasis are still not completely clarified. The study confirmed that EGFR/MET was highly expressed in HCC cells and tissues and the phosphorylation was stable after metastasis. The expression of EGFR/MET was up-regulated in circulating tumor microemboli (CTM) to accelerate IL-8 production and resistance to the lethal effect of leukocytes. Meanwhile, highly expressed EGFR/MET effectively regulated the Ras/MAPK pathway and stabilized suspended HCC cells by facilitating proliferation and inhibiting apoptosis. Moreover, EGFR/MET promoted phosphorylation of hetero-RTKs, which was dependent on high-energy phosphoric acid compounds rather than their direct interactions. In conclusion, highly expressed EGFR/MET could be used in CTM identification and suitable for preventing metastasis of HCC in clinical practice.
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6
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Yang X, Liao HY, Zhang HH. Roles of MET in human cancer. Clin Chim Acta 2021; 525:69-83. [PMID: 34951962 DOI: 10.1016/j.cca.2021.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 01/18/2023]
Abstract
The MET proto-oncogene was first identified in osteosarcoma cells exposed to carcinogens. Although expressed in many normal cells, MET is overexpressed in many human cancers. MET is involved in the initiation and development of various human cancers and mediates proliferation, migration and invasion. Accordingly, MET has been successfully used as a biomarker for diagnosis and prognosis, survival, post-operative recurrence, risk assessment and pathologic grading, as well as a therapeutic target. In addition, recent work indicates that inhibition of MET expression and function has potential clinical benefit. This review summarizes the role, mechanism, and clinical significance of MET in the formation and development of human cancer.
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Affiliation(s)
- Xin Yang
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, PR China; Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730000, PR China
| | - Hai-Yang Liao
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, PR China; Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730000, PR China
| | - Hai-Hong Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, PR China; Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730000, PR China.
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7
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Meng W, Chen T. Association between the HGF/c‑MET signaling pathway and tumorigenesis, progression and prognosis of hepatocellular carcinoma (Review). Oncol Rep 2021; 46:191. [PMID: 34278495 DOI: 10.3892/or.2021.8142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/10/2021] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive and lethal malignancies with a rising incidence, and is characterized by rapid progression, frequent metastasis, late diagnosis, high postoperative recurrence and poor prognosis. Therefore, novel treatment strategies for HCC, particularly advanced HCC, are urgently required. The hepatocyte growth factor (HGF)/c‑mesenchymal‑epithelial transition receptor (c‑MET) axis is a key signaling pathway in HCC and is strongly associated with its highly malignant features. Available treatments based on HGF/c‑MET inhibition may prolong the lifespan of patients with HCC; however, they do not achieve the desired therapeutic effects. The aim of the present article was to review the basic knowledge regarding the role of the HGF/c‑MET signaling pathway in HCC, and examine the association between the HGF/c‑MET signaling pathway and the tumorigenesis, progression and prognosis of HCC.
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Affiliation(s)
- Wei Meng
- School of Medicine, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Tao Chen
- School of Medicine, China Three Gorges University, Yichang, Hubei 443002, P.R. China
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8
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Properties of FDA-approved small molecule protein kinase inhibitors: A 2021 update. Pharmacol Res 2021; 165:105463. [DOI: 10.1016/j.phrs.2021.105463] [Citation(s) in RCA: 165] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 02/06/2023]
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9
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Chen E, Li E, Liu H, Zhou Y, Wen L, Wang J, Wang Y, Ye L, Liang T. miR-26b enhances the sensitivity of hepatocellular carcinoma to Doxorubicin via USP9X-dependent degradation of p53 and regulation of autophagy. Int J Biol Sci 2021; 17:781-795. [PMID: 33767588 PMCID: PMC7975695 DOI: 10.7150/ijbs.52517] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/16/2021] [Indexed: 12/30/2022] Open
Abstract
Multi-drug resistance is a major challenge to hepatocellular carcinoma (HCC) treatment, and the over-expression or deletion of microRNA (miRNA) expression is closely related to the drug-resistant properties of various cell lines. However, the underlying molecular mechanisms remain unclear. CCK-8, EdU, flow cytometry, and transmission electron microscopy were performed to determine cell viability, proliferation, apoptosis, autophagic flow, and nanoparticle characterization, respectively. In this study, the results showed that the expression of miR-26b was downregulated following doxorubicin treatment in human HCC tissues. An miR-26b mimic enhanced HCC cell doxorubicin sensitivity, except in the absence of p53 in Hep3B cells. Delivery of the proteasome inhibitor, MG132, reversed the inhibitory effect of miR-26b on the level of p53 following doxorubicin treatment. Tenovin-1 (an MDM2 inhibitor) protected p53 from ubiquitination-mediated degradation only in HepG2 cells with wild type p53. Tenovin-1 pretreatment enhanced HCC cell resistance to doxorubicin when transfected with an miR-26b mimic. Moreover, the miR-26b mimic inhibited doxorubicin-induced autophagy and the autophagy inducer, rapamycin, eliminated the differences in the drug sensitivity effect of miR-26b. In vivo, treatment with sp94dr/miR-26b mimic nanoparticles plus doxorubicin inhibited tumor growth. Our current data indicate that miR-26b enhances HCC cell sensitivity to doxorubicin through diminishing USP9X-mediated p53 de-ubiquitination caused by DNA damaging drugs and autophagy regulation. This miRNA-mediated pathway that modulates HCC will help develop novel therapeutic strategies.
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Affiliation(s)
- Enjiang Chen
- The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China
| | - Enliang Li
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hao Liu
- Department of Medical Oncology, Tongde hospital of Zhejiang Province, Hangzhou, Zhejiang, 310012, China
| | - Yue Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liang Wen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianxin Wang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Wang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China
- Department of Medical Oncology, Tongde hospital of Zhejiang Province, Hangzhou, Zhejiang, 310012, China
| | - Longyun Ye
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Tingbo Liang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Innovation Center for the Study of Pancreatic Disease, Hangzhou, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, China
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10
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Gan Q, Shao J, Cao Y, Lei J, Xie P, Ge J, Hu G. USP33 regulates c-Met expression by deubiquitinating SP1 to facilitate metastasis in hepatocellular carcinoma. Life Sci 2020; 261:118316. [PMID: 32835698 DOI: 10.1016/j.lfs.2020.118316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/05/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022]
Abstract
AIMS Deubiquitinase ubiquitin-specific protease 33 (USP33) is abnormally expressed in various tumors and participates in tumor progression. However, the expression and biological role of USP33 in hepatocellular carcinoma (HCC) are still unclear. MAIN METHODS We performed immunohistochemistry, western blotting, and qRT-PCR analysis to determine the expression of USP33 in HCC. We then analyzed the effects of USP33 expression on the prognosis of HCC. The roles of USP33 in regulating HCC cell migration and invasion were further explored in vitro. Animal studies were performed to investigate the effects of USP33 on tumor metastasis. RNA sequencing and luciferase reporter and immunofluorescence assays were used to identify the activation of the specificity protein 1 (SP1)/c-Met axis. KEY FINDINGS Here, for the first time, we reported an abnormal increase in the expression of USP33 in HCC tissues and that USP33 may act as a prognostic biomarker for HCC patients. We found that USP33 knockdown inhibited the invasion and metastasis in HCC cells both in vitro and in vivo, which was partly dependent on c-Met. Further investigations revealed that USP33 regulated c-Met expression by enhancing the protein stability of the transcription factor SP1 in HCC cells. Mechanistically, USP33 directly bound SP1 and decreased its ubiquitination, thereby upregulating c-Met expression. SIGNIFICANCE Our results reveal that USP33 acts as the deubiquitinating enzyme of SP1 and contributes to HCC invasion and metastasis through activation of the SP1/c-Met axis. These data indicate a previously unknown function of USP33, which may provide potential targets for the treatment of HCC patients.
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Affiliation(s)
- Qin Gan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Jiujiang Hospital of Nanchang University, Jiujiang 332000, China; Department of Hepatobiliary and Pancreatic Surgery, Jiujiang NO.1 People's Hospital, Jiujiang 332000, China
| | - Jia Shao
- Centre for Assisted Reproduction, The First Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yan Cao
- Department of Gastroenterology, The Fourth Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jun Lei
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Peiyi Xie
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jin Ge
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Guohui Hu
- Department of General Practice, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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11
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Bass AKA, El-Zoghbi MS, Nageeb ESM, Mohamed MFA, Badr M, Abuo-Rahma GEDA. Comprehensive review for anticancer hybridized multitargeting HDAC inhibitors. Eur J Med Chem 2020; 209:112904. [PMID: 33077264 DOI: 10.1016/j.ejmech.2020.112904] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/18/2020] [Accepted: 09/30/2020] [Indexed: 02/08/2023]
Abstract
Despite the encouraging clinical progress of chemotherapeutic agents in cancer treatment, innovation and development of new effective anticancer candidates still represents a challenging endeavor. With 15 million death every year in 2030 according to the estimates, cancer has increased rising of an alarm as a real crisis for public health and health systems worldwide. Therefore, scientist began to introduce innovative solutions to control the cancer global health problem. One of the promising strategies in this issue is the multitarget or smart hybrids having two or more pharmacophores targeting cancer. These rationalized hybrid molecules have gained great interests in cancer treatment as they are capable to simultaneously inhibit more than cancer pathway or target without drug-drug interactions and with less side effects. A prime important example of these hybrids, the HDAC hybrid inhibitors or referred as multitargeting HDAC inhibitors. The ability of HDAC inhibitors to synergistically improve the efficacy of other anti-cancer drugs and moreover, the ease of HDAC inhibitors cap group modification prompt many medicinal chemists to innovate and develop new generation of HDAC hybrid inhibitors. Notably, and during this short period, there are four HDAC inhibitor hybrids have entered different phases of clinical trials for treatment of different types of blood and solid tumors, namely; CUDC-101, CUDC-907, Tinostamustine, and Domatinostat. This review shed light on the most recent hybrids of HDACIs with one or more other cancer target pharmacophore. The designed multitarget hybrids include topoisomerase inhibitors, kinase inhibitors, nitric oxide releasers, antiandrogens, FLT3 and JAC-2 inhibitors, PDE5-inhibitors, NAMPT-inhibitors, Protease inhibitors, BRD4-inhibitors and other targets. This review may help researchers in development and discovery of new horizons in cancer treatment.
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Affiliation(s)
- Amr K A Bass
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Mona S El-Zoghbi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - El-Shimaa M Nageeb
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | - Mamdouh F A Mohamed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sohag University, 82524 Sohag, Egypt
| | - Mohamed Badr
- Department of Biochemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Gamal El-Din A Abuo-Rahma
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, New Minia, Minia, Egypt.
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12
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Wang H, Rao B, Lou J, Li J, Liu Z, Li A, Cui G, Ren Z, Yu Z. The Function of the HGF/c-Met Axis in Hepatocellular Carcinoma. Front Cell Dev Biol 2020; 8:55. [PMID: 32117981 PMCID: PMC7018668 DOI: 10.3389/fcell.2020.00055] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/22/2020] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide, leading to a large global cancer burden. Hepatocyte growth factor (HGF) and its high-affinity receptor, mesenchymal epithelial transition factor (c-Met), are closely related to the onset, progression, and metastasis of multiple tumors. The HGF/c-Met axis is involved in cell proliferation, movement, differentiation, invasion, angiogenesis, and apoptosis by activating multiple downstream signaling pathways. In this review, we focus on the function of the HGF/c-Met axis in HCC. The HGF/c-Met axis promotes the onset, proliferation, invasion, and metastasis of HCC. Moreover, it can serve as a biomarker for diagnosis and prognosis, as well as a therapeutic target for HCC. In addition, it is closely related to drug resistance during HCC treatment.
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Affiliation(s)
- Haiyu Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Benchen Rao
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiamin Lou
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianhao Li
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenguo Liu
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ang Li
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guangying Cui
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhigang Ren
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zujiang Yu
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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13
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Qin JM. Postoperative recurrent factors and therapeutic and preventive strategies for hepatocellular carcinoma. Shijie Huaren Xiaohua Zazhi 2019; 27:1407-1418. [DOI: 10.11569/wcjd.v27.i23.1407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in China. The recurrence rate is about 50% at 3 years and over 70% at 5 years after hepatectomy for HCC. The high recurrence rate seriously affects the curative effect and long-term survival of patients with HCC, and is the primary cause of death after operation. Postoperative recurrence of HCC is a complex multi-step, multi-factorial process involving three factors: the body, microenvironment, and tumor tissue, which include body immunity, local pH value, interstitial pressure, vascular osmotic pressure, inflammatory reaction, tumor cell adhesion, extracellular matrix degradation, cell migration, cell proliferation, and tumor angiogenesis. HCC recurrence is closely related to abnormal gene expression and related molecular function changes, but the molecular mechanism has not been fully elucidated. How to treat the recurrence of HCC after operation directly affects the prognosis of patients with HCC, and treatments include reoperation, liver transplantation, local minimally invasive treatment, radiotherapy, molecular targeted drugs, immunotherapy, and traditional Chinese medicine treatment. It is difficult to cure or control tumor progression by a single therapy. Two or more therapeutic methods need to be combined organically to achieve a synergistic therapeutic effect. According to the specific situation of patients with HCC, it is key to analyze the individual characteristics of patients, to combine the clinical experience of clinicians and the best evidence, to adopt the individualized treatment plan, and to choose the appropriate treatment methods. For HCC patients with high-risk factors for recurrence, selecting the appropriate treatment is important to reduce the recurrence of HCC after operation and prolong the survival of patients.
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Affiliation(s)
- Jian-Min Qin
- Department of General Surgery, the Third Hospital Affiliated to Naval Military Medical University, Shanghai 201805, China
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14
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Chen S, Xia X. Long noncoding RNA NEAT1 suppresses sorafenib sensitivity of hepatocellular carcinoma cells via regulating miR-335-c-Met. J Cell Physiol 2019; 234:14999-15009. [PMID: 30937906 DOI: 10.1002/jcp.27567] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/13/2018] [Indexed: 01/24/2023]
Abstract
OBJECTIVES To investigate the role of long noncoding RNA (lncRNA) nuclear-enriched abundant transcript 1 (NEAT1) in regulating sorafenib (Sora) sensitivity of hepatocellular carcinoma (HCC) cells and possible signaling pathways. METHODS HCC cell lines and tumor tissue were quantified for NEAT1 expression by quantitative polymerase chain reaction (qPCR). Following shRNA (short hairpin RNA) knockdown of NEAT1, cell viability, apoptosis, and related protein expression were measured after drug treatment. The downstream target of NEAT1, including miR-335 and c-Met was studied using a combination of luciferase binding assay, gene knockdown/overexpression, western blot analysis, and cell viability/apoptosis assay. Cancer cells with NEAT1 knockdown were transplanted onto nude mice for in vivo tumorigenesis assay. RESULTS Silencing of NEAT1 in HCC cells facilitated Sora sensitivity by enhancing drug-induced apoptosis, and led to smaller tumor size on nude mice. Mechanistic study suggested that miR-335 was negatively regulated by NEAT1, and miR-335 further suppressed c-Met-Akt pathway, whose activation caused drug resistance of HCC cells. The knockdown of miR-335, or overexpression of c-Met, all remarkably abolished the proapoptotic effect of NEAT1 knockdown in HCC cells. CONCLUSION lncRNA NEAT1 mediates Sora resistance of HCC cells by suppressing miR-335 expression, and disinhibition on c-Met-Akt signaling pathway. Our results provide potency of NEAT1 as the biomarker for drug resistant HCC and possible treating targets.
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Affiliation(s)
- Shuwei Chen
- Department of Hepatobiliary Surgery, Chenzhou First People's Hospital, Chenzhou, China
| | - Xinhu Xia
- Department of Somatic Disease, Hunan Provincial Secondary People's Hospital, Changsha, China
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15
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Luan Y, Li J, Bernatchez JA, Li R. Kinase and Histone Deacetylase Hybrid Inhibitors for Cancer Therapy. J Med Chem 2018; 62:3171-3183. [PMID: 30418766 DOI: 10.1021/acs.jmedchem.8b00189] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Histone deacetylases (HDACs), encompassing at least 18 members, are promising targets for anticancer drug discovery and development. To date, five histone deacetylase inhibitors (HDACis) have been approved for cancer treatment, and numerous others are undergoing clinical trials. It has been well validated that an agent that can simultaneously and effectively inhibit two or more targets may offer greater therapeutic benefits over single-acting agents in preventing resistance to treatment and in potentiating synergistic effects. A prime example of a bifunctional agent is the hybrid HDAC inhibitor. In this perspective, the authors review the majority of reported kinase/HDAC hybrid inhibitors.
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Affiliation(s)
- Yepeng Luan
- Department of Medicinal Chemistry, School of Pharmacy , Qingdao University , Qingdao 266071 , Shandong Province , China
| | | | | | - Rongshi Li
- Department of Medicinal Chemistry, School of Pharmacy , Qingdao University , Qingdao 266071 , Shandong Province , China.,UNMC Center for Drug Discovery, Department of Pharmaceutical Sciences, College of Pharmacy, Fred and Pamela Buffett Cancer Center, and Center for Staphylococcal Research , University of Nebraska Medical Center , Omaha , Nebraska 68198 , United States
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16
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Lentiviral-mediated microRNA-26b up-regulation inhibits proliferation and migration of hepatocellular carcinoma cells. Kaohsiung J Med Sci 2018; 34:547-555. [PMID: 30309482 DOI: 10.1016/j.kjms.2018.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/09/2018] [Accepted: 05/14/2018] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a frequently occurred malignancy worldwide with a high mortality. The treatment for HCC is still controversial. Emerging evidences have demonstrated that microRNAs (miRs) play a role in HCC. This study aims to investigate the effects of lentiviral-mediated miRNA-26b (miR-26b) on the proliferation and metastasis of HCC cells. The normal hepatic cell line HL-7702 and HCC cell lines HepG2 (without metastatic potential), SMMC-7721 (with low metastatic potential) and MHCC97H (with high metastatic potential) were purchased for our experiment. The lentiviral-mediated miR-26b overexpression (miR-26b-LV) and low expression (sh-miR-26b) were constructed to transfect the cells. The miR-26b expression and expressions of Karyopherin α-2 (KPNA2), matrix metalloproteinase 1 (MMP-1), MMP-7 and MMP-14 were determined by RT-qPCR and western blot analysis. The proliferation and metastasis of transfected HCC cells were detected by MTT and Transwell assay respectively. The miR-26b expressions were decreased significantly in MHCC97H cells. With lentiviral-mediated miR-26b overexpression, the proliferation and migration of HepG2, MHCC97H and SMMC-7721 cells were decreased significantly. The RT-qPCR and western blot analysis results revealed that the mRNA and protein expressions of KPNA2, MMP-1, MMP-7 and MMP-14 were decreased by lentiviral-mediated miR-26b overexpression. All the above indexes in the HepG2, MHCC97H and SMMC-7721 cells treated by sh-miR-26b exhibited opposite trends. These results show that overexpressed miR-26b could inhibit the proliferation and metastasis of HCC cells significantly, which provides a novel target and theoretical foundation for the treatment of HCC.
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17
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Khandia R, Pattnaik B, Rajukumar K, Pateriya A, Bhatia S, Murugkar H, Prakash A, Pradhan HK, Dhama K, Munjal A, Joshi SK. Anti-proliferative role of recombinant lethal toxin of Bacillus anthracis on primary mammary ductal carcinoma cells revealing its therapeutic potential. Oncotarget 2018; 8:35835-35847. [PMID: 28415766 PMCID: PMC5482621 DOI: 10.18632/oncotarget.16214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 03/07/2017] [Indexed: 12/11/2022] Open
Abstract
Bacillus anthracis secretes three secretary proteins; lethal factor (LF), protective antigen (PA) and edema factor (EF). The LF has ability to check proliferation of mammary tumors, chiefly depending on mitogen activated protein kinase (MAPK) signaling pathway. Evaluation of therapeutic potential of recombinant LF (rLF), recombinant PA (rPA) and lethal toxin (rLF + rPA = LeTx) on the primary mammary ductal carcinoma cells revealed significant (p < 0.01) reduction in proliferation of tumor cells with mean inhibition indices of 28.0 ± 1.37% and 19.6 ± 1.47% respectively. However, treatment with rPA alone had no significant anti-proliferative effect as evident by low mean inhibition index of 3.4 ± 3.87%. The higher inhibition index observed for rLF alone as compared to LeTx is contrary to the existing knowledge on LF, which explains the requirement of PA dependent endocytosis for its enzymatic activity. Therefore, the plausible existence of PA independent mode of action of LF including direct receptor mediated endocytosis or modulation of signal transduction cascade via unknown means is hypothesized. In silico protein docking analysis of other cellular receptors for any plausibility to play the role of receptor for LF revealed c-Met receptor showing strongest affinity for LF (H bond = 19; Free energy = −773.96), followed by nerve growth factor receptor (NGFR) and human epidermal growth factor receptor (HER)-1. The study summarizes the use of rLF or LeTx as therapeutic molecule against primary mammary ductal carcinoma cells and also the c-Met as potential alternative receptor for LF to mediate and modulate PA independent signal transduction.
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Affiliation(s)
- Rekha Khandia
- ICAR-National Institute of High Security Animal Diseases, Bhopal, Madhya Pradesh, India.,Department of Biochemistry and Genetics, Barkatullah University, Bhopal, Madhya Pradesh, India
| | - Bramhadev Pattnaik
- Project Directorate on Foot and Mouth Disease, Mukteswar, Uttarakhand, India
| | | | - Atul Pateriya
- ICAR-National Institute of High Security Animal Diseases, Bhopal, Madhya Pradesh, India
| | - Sandeep Bhatia
- ICAR-National Institute of High Security Animal Diseases, Bhopal, Madhya Pradesh, India
| | - Harshad Murugkar
- ICAR-National Institute of High Security Animal Diseases, Bhopal, Madhya Pradesh, India
| | - Anil Prakash
- Department of Microbiology, Barkatullah University, Bhopal, Madhya Pradesh, India
| | - Hare Krishna Pradhan
- Ex-Avian Influenza National Consultant, Indian Office of WHO Consultant, Bhartiya Kala Kendra, New Delhi, India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly Uttar Pradesh, India
| | - Ashok Munjal
- Department of Biochemistry and Genetics, Barkatullah University, Bhopal, Madhya Pradesh, India
| | - Sunil K Joshi
- Cellular Immunology Laboratory, Frank Reidy Research Center of Bioelectrics, College of Health Sciences, Old Dominion University Norfolk, VA USA
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18
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Lin CY, Hu CT, Cheng CC, Lee MC, Pan SM, Lin TY, Wu WS. Oxidation of heat shock protein 60 and protein disulfide isomerase activates ERK and migration of human hepatocellular carcinoma HepG2. Oncotarget 2017; 7:11067-82. [PMID: 26840563 PMCID: PMC4905458 DOI: 10.18632/oncotarget.7093] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 01/17/2016] [Indexed: 12/17/2022] Open
Abstract
Hepatocyte growth factor (HGF) and its receptor c-Met were frequently deregulated in hepatocellular carcinoma (HCC). Signaling pathways activated by HGF-c-Met are promising targets for preventing HCC progression. HGF can induce the reactive oxygen species (ROS) signaling for cell adhesion, migration and invasion of tumors including HCC. On the other hand, extracellular signal-regulated kinases (ERK), member of mitogen activated kinase, can be activated by ROS for a lot of cellular processes. As expected, HGF-induced phosphorylation of ERK and progression of HCC cell HepG2 were suppressed by ROS scavengers. By N-(biotinoyl)-N'-(iodoacetyl)-ethylenediamine (BIAM) labeling method, a lot of cysteine (-SH)-containing proteins with M.W. 50-75 kD were decreased in HepG2 treated with HGF or two other ROS generators, 12-O-tetradecanoyl-phorbol-13-acetate (TPA) and phenazine methosulfate. These redox sensitive proteins were identified by matrix-assisted laser desorption ionization-time of flight mass spectrometry. Among them, two chaperones, heat shock protein 60 (HSP60) and protein disulfide isomerase (PDI), were found to be the most common redox sensitive proteins in responding to all three agonists. Affinity blot of BIAM-labeled, immunoprecipitated HSP60 and PDI verified that HGF can decrease the cysteine (-SH) containing HSP60 and PDI. On the other hand, HGF and TPA increased cysteinyl glutathione-containing HSP60, consistent with the decrease of cysteine (-SH)-containing HSP60. Moreover, depletion of HSP60 and PDI or expression of dominant negative mutant of HSP60 with alteration of Cys, effectively prevented HGF-induced ERK phosphorylation and HepG2 migration.In conclusion, the redox sensitive HSP60 and PDI are required for HGF-induced ROS signaling and potential targets for preventing HCC progressions.
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Affiliation(s)
- Chung-Yi Lin
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, and Division of Gastroenterology, Department of Internal Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chi-Tan Hu
- Research Centre for Hepatology, Department of Internal Medicine, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan
| | - Chuan-Chu Cheng
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ming-Che Lee
- Department of Surgery, Buddhist Tzu Chi General Hospital, Hualien, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Siou-Mei Pan
- Research Centre for Hepatology, Department of Internal Medicine, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan
| | - Teng-Yi Lin
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, and Division of Gastroenterology, Department of Internal Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Wen-Sheng Wu
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan
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19
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Hu CT, Wu JR, Cheng CC, Wu WS. The Therapeutic Targeting of HGF/c-Met Signaling in Hepatocellular Carcinoma: Alternative Approaches. Cancers (Basel) 2017; 9:cancers9060058. [PMID: 28587113 PMCID: PMC5483877 DOI: 10.3390/cancers9060058] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/23/2017] [Accepted: 05/24/2017] [Indexed: 12/22/2022] Open
Abstract
The poor prognosis of hepatocellular carcinoma (HCC), one of the most devastating cancers worldwide, is due to frequent recurrence and metastasis. Among the metastatic factors in the tumor microenvironment, hepatocyte growth factor (HGF) has been well known to play critical roles in tumor progression, including HCC. Therefore, c-Met is now regarded as the most promising therapeutic target for the treatment of HCC. However, there are still concerns about resistance and the side effects of using conventional inhibitors of c-Met, such as tyrosine kinase inhibitors. Recently, many alternative strategies of c-Met targeting have been emerging. These include targeting the downstream effectors of c-Met, such as hydrogen peroxide-inducible clone 5 (Hic-5), to block the reactive oxygen species (ROS)-mediated signaling for HCC progression. Also, inhibition of endosomal regulators, such as PKCε and GGA3, may perturb the c-Met endosomal signaling for HCC cell migration. On the other hand, many herbal antagonists of c-Met-dependent signaling, such as saponin, resveratrol, and LZ-8, were identified. Taken together, it can be anticipated that more effective and safer c-Met targeting strategies for preventing HCC progression can be established in the future.
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Affiliation(s)
- Chi-Tan Hu
- Research Centre for Hepatology, Department of Internal Medicine, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien 970, Taiwan.
| | - Jia-Ru Wu
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien 970, Taiwan.
| | - Chuan-Chu Cheng
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien 970, Taiwan.
| | - Wen-Sheng Wu
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien 970, Taiwan.
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20
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Zhao J, Fang L, Zhang X, Liang Y, Gou S. Synthesis and biological evaluation of new [1,2,4]triazolo[4,3-a]pyridine derivatives as potential c-Met inhibitors. Bioorg Med Chem 2016; 24:3483-93. [DOI: 10.1016/j.bmc.2016.05.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 01/07/2023]
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21
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Rossi RE, Pozzi R, Gonzalez-Lorenzo M, Kwag KH, Conte D, Cecco S, Banzi R, Moja L, Baldo P. Tyrosine kinase inhibitors for unresectable hepatocellular carcinoma in adults. Hippokratia 2015. [DOI: 10.1002/14651858.cd011568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Roberta Elisa Rossi
- Fondazione IRCCS Cà Granda - Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, Università degli Studi di Milano; Gastroenterology and Endoscopy Unit; Milan Italy 20122
| | - Roberta Pozzi
- Fondazione IRCCS Cà Granda - Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, Università degli Studi di Milano; Gastroenterology and Endoscopy Unit; Milan Italy 20122
| | - Marien Gonzalez-Lorenzo
- Università degli Studi di Milano; Department of Biomedical Sciences for Health; Via Pascal 36 Milan Italy 20133
| | - Koren H Kwag
- IRCCS Galeazzi Orthopaedic Institute; Clinical Epidemiology Unit; Via R. Galeazzi, 4 Milan Italy 20161
| | - Dario Conte
- Fondazione IRCCS Cà Granda - Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, Università degli Studi di Milano; Gastroenterology and Endoscopy Unit; Milan Italy 20122
| | - Sara Cecco
- CRO Aviano - Centro di Riferimento Oncologico IRCCS; Pharmacy Unit, Drug Information Centre; Via Pedemontana Occidentale, 2 33081 Aviano (PN) Italy
| | - Rita Banzi
- IRCCS-Mario Negri Institute for Pharmacological Research; Laboratory of Regulatory Policies; via G La Masa 19 Milan Italy 20156
| | - Lorenzo Moja
- Università degli Studi di Milano; Department of Biomedical Sciences for Health; Via Pascal 36 Milan Italy 20133
- IRCCS Galeazzi Orthopaedic Institute; Clinical Epidemiology Unit; Via R. Galeazzi, 4 Milan Italy 20161
| | - Paolo Baldo
- CRO Aviano - Centro di Riferimento Oncologico IRCCS; Pharmacy Unit, Drug Information Centre; Via Pedemontana Occidentale, 2 33081 Aviano (PN) Italy
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22
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Choi AY, Choi JH, Hwang KY, Jeong YJ, Choe W, Yoon KS, Ha J, Kim SS, Youn JH, Yeo EJ, Kang I. Licochalcone A induces apoptosis through endoplasmic reticulum stress via a phospholipase Cγ1-, Ca(2+)-, and reactive oxygen species-dependent pathway in HepG2 human hepatocellular carcinoma cells. Apoptosis 2015; 19:682-97. [PMID: 24337903 DOI: 10.1007/s10495-013-0955-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Licochalcone A (LicA), an estrogenic flavonoid, induces apoptosis in multiple types of cancer cells. In this study, the molecular mechanisms underlying the anti-cancer effects of LicA were investigated in HepG2 human hepatocellular carcinoma cells. LicA induced apoptotic cell death, activation of caspase-4, -9, and -3, and expression of endoplasmic reticulum (ER) stress-associated proteins, including C/EBP homologous protein (CHOP). Inhibition of ER stress by CHOP knockdown or treatment with the ER stress inhibitors, salubrinal and 4-phenylbutyric acid, reduced LicA-induced cell death. LicA also induced reactive oxygen species (ROS) accumulation and the anti-oxidant N-acetylcysteine reduced LicA-induced cell death and CHOP expression. In addition, LicA increased the levels of cytosolic Ca(2+), which was blocked by 2-aminoethoxydiphenyl borate (an antagonist of inositol 1,4,5-trisphosphate receptor) and BAPTA-AM (an intracellular Ca(2+) chelator). 2-Aminoethoxydiphenyl borate and BAPTA-AM inhibited LicA-induced cell death. Interestingly, LicA induced phosphorylation of phospholipase Cγ1 (PLCγ1) and inhibition of PLCγ1 reduced cell death and ER stress. Moreover, the multi-targeted receptor tyrosine kinase inhibitors, sorafenib and sunitinib, reduced LicA-induced cell death, ER stress, and cytosolic Ca(2+) and ROS accumulation. Finally, LicA induced phosphorylation of vascular endothelial growth factor receptor 2 (VEGFR2) and c-Met receptor and inhibition of both receptors by co-transfection with VEGFR2 and c-Met siRNAs reversed LicA-induced cell death, Ca(2+) increase, and CHOP expression. Taken together, these findings suggest that induction of ER stress via a PLCγ1-, Ca(2+)-, and ROS-dependent pathway may be an important mechanism by which LicA induces apoptosis in HepG2 hepatocellular carcinoma cells.
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Affiliation(s)
- A-Young Choi
- Department of Biochemistry and Molecular Biology, School of Medicine, Medical Research Center for Bioreaction to Reactive Oxygen Species, Biomedical Science Institute, Kyung Hee University, Seoul, 130-701, Republic of Korea
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23
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Roskoski R. Src protein-tyrosine kinase structure, mechanism, and small molecule inhibitors. Pharmacol Res 2015; 94:9-25. [PMID: 25662515 DOI: 10.1016/j.phrs.2015.01.003] [Citation(s) in RCA: 369] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 01/26/2015] [Indexed: 12/13/2022]
Abstract
The physiological Src proto-oncogene is a protein-tyrosine kinase that plays key roles in cell growth, division, migration, and survival signaling pathways. From the N- to C-terminus, Src contains a unique domain, an SH3 domain, an SH2 domain, a protein-tyrosine kinase domain, and a regulatory tail. The chief phosphorylation sites of human Src include an activating pTyr419 that results from phosphorylation in the kinase domain by an adjacent Src molecule and an inhibitory pTyr530 in the regulatory tail that results from phosphorylation by C-terminal Src kinase (Csk) or Chk (Csk homologous kinase). The oncogenic Rous sarcoma viral protein lacks the equivalent of Tyr530 and is constitutively activated. Inactive Src is stabilized by SH2 and SH3 domains on the rear of the kinase domain where they form an immobilizing and inhibitory clamp. Protein kinases including Src contain hydrophobic regulatory and catalytic spines and collateral shell residues that are required to assemble the active enzyme. In the inactive enzyme, the regulatory spine contains a kink or a discontinuity with a structure that is incompatible with catalysis. The conversion of inactive to active Src is accompanied by electrostatic exchanges involving the breaking and making of distinct sets of kinase domain salt bridges and hydrogen bonds. Src-catalyzed protein phosphorylation requires the participation of two Mg(2+) ions. Although nearly all protein kinases possess a common K/E/D/D signature, each enzyme exhibits its unique variations of the protein-kinase reaction template. Bosutinib, dasatinib, and ponatinib are Src/multikinase inhibitors that are approved by the FDA for the treatment of chronic myelogenous leukemia and vandetanib is approved for the treatment of medullary thyroid cancer. The Src and BCR-Abl inhibitors saracatinib and AZD0424, along with the previous four drugs, are in clinical trials for a variety of solid tumors including breast and lung cancers. Both ATP and targeted therapeutic Src protein kinase inhibitors such as dasatinib and ponatinib make hydrophobic contacts with catalytic spine residues and form hydrogen bonds with hinge residues connecting the small and large kinase lobes.
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Affiliation(s)
- Robert Roskoski
- Blue Ridge Institute for Medical Research, 3754 Brevard Road, Suite 116, Box 19, Horse Shoe, NC 28742-8814, United States.
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24
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Wu JR, Hu CT, You RI, Ma PL, Pan SM, Lee MC, Wu WS. Preclinical trials for prevention of tumor progression of hepatocellular carcinoma by LZ-8 targeting c-Met dependent and independent pathways. PLoS One 2015; 10:e0114495. [PMID: 25607934 PMCID: PMC4301873 DOI: 10.1371/journal.pone.0114495] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 11/07/2014] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is among the most lethal cancers. Mounting studies highlighted the essential role of the HGF/c-MET axis in driving HCC tumor progression. Therefore, c-Met is a potential therapeutic target for HCC. However, several concerns remain unresolved in c-Met targeting. First, the status of active c-Met in HCC must be screened to determine patients suitable for therapy. Second, resistance and side effects have been observed frequently when using conventional c-Met inhibitors. Thus, a preclinical system for screening the status of c-Met signaling and identifying efficient and safe anti-HCC agents is urgently required. In this study, immunohistochemical staining of phosphorylated c-Met (Tyr1234) on tissue sections indicated that HCCs with positive c-Met signaling accounted for approximately 46% in 26 cases. Second, many patient-derived HCC cell lines were established and characterized according to motility and c-Met signaling status. Moreover, LZ8, a medicinal peptide purified from the herb Lingzhi, featuring immunomodulatory and anticancer properties, was capable of suppressing cell migration and slightly reducing the survival rate of both c-Met positive and negative HCCs, HCC372, and HCC329, respectively. LZ8 also suppressed the intrahepatic metastasis of HCC329 in SCID mice. On the molecular level, LZ8 suppressed the expression of c-Met and phosphorylation of c-Met, ERK and AKT in HCC372, and suppressed the phosphorylation of JNK, ERK, and AKT in HCC329. According to receptor array screening, the major receptor tyrosine kinase activated in HCC329 was found to be the epidermal growth factor receptor (EGFR). Moreover, tyrosine-phosphorylated EGFR (the active EGFR) was greatly suppressed in HCC329 by LZ8 treatment. In addition, LZ8 blocked HGF-induced cell migration and c-Met-dependent signaling in HepG2. In summary, we designed a preclinical trial using LZ8 to prevent the tumor progression of patient-derived HCCs with c-Met-positive or -negative signaling.
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Affiliation(s)
- Jia-Ru Wu
- Institute of Medical Sciences, Tzu Chi University, Hualein, Taiwan
| | - Chi-Tan Hu
- Research Centre for Hepatology, Buddhist Tzu Chi General Hospital and Department of Internal Medicine Tzu Chi University, Hualien, Taiwan
| | - Ren-In You
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualein, Taiwan
| | - Pei-Ling Ma
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualein, Taiwan
| | - Siou-Mei Pan
- Research Centre for Hepatology, Buddhist Tzu Chi General Hospital and Department of Internal Medicine Tzu Chi University, Hualien, Taiwan
| | - Ming-Che Lee
- Department of Surgery, Buddhist Tzu Chi General Hospital, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Wen-Sheng Wu
- Institute of Medical Sciences, Tzu Chi University, Hualein, Taiwan
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualein, Taiwan
- * E-mail:
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25
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Shen G, Lin Y, Yang X, Zhang J, Xu Z, Jia H. MicroRNA-26b inhibits epithelial-mesenchymal transition in hepatocellular carcinoma by targeting USP9X. BMC Cancer 2014; 14:393. [PMID: 24890815 PMCID: PMC4062892 DOI: 10.1186/1471-2407-14-393] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 05/20/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Metastasis is responsible for the rapid recurrence and poor survival of malignancies. Epithelial-mesenchymal transition (EMT) has a critical role in metastasis. Increasing evidence indicates that EMT can be regulated by microRNAs (miRNAs). The aim of this study was to investigate the role of miR-26b in modulating epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma (HCC), as well as to identify its underlying mechanism of action. METHODS The expression level of miR-26b was assessed in multiple HCC cell lines (HepG2, MHCC97H, Hep3B, MHCC97L, HCCC9810, BEL-7402, Huh7 and QGY-7703), as well as in liver tissue from patients with HCC. Follow-up studies examined the effects of a miR-26b mimic (increased expression) and a miR-26b inhibitor (decreased expression) on markers of EMT, wound healing and cell migration. The molecular target of miR-26b was also identified using a computer algorithm and confirmed experimentally. RESULTS MiR-26b expression was decreased in HCC cell lines and was inversely correlated with the grade of HCC. Increased expression of miR-26b inhibited the migration and invasiveness of HCC cell lines, which was accompanied by decreased expression of the epithelial marker E-cadherin and increased expression of the mesenchymal marker vimentin, at both the mRNA and protein expression levels. A binding site for miR-26b was theoretically identified in the 3'UTR of USP9X. Further studies revealed that overexpression of miR-26b repressed the endogenous level of USP9X protein expression. Overexpression of miR-26b also repressed Smad4 expression, whereas its inhibition elevated Smad4 expression. CONCLUSIONS Taken together, our results indicate that miR-26b were inhibited in HCC. In HCC cell lines, miR-26b targeted the 3'UTR of USP9X, which in turn affects EMT through Smad4 and the TGF-β signaling pathway. Our analysis of clinical HCC samples verifies that miR-26b also targets USP9X expression to inhibit the EMT of hepatocytes. Thus, miR-26b may have some effects on the EMT of HCC cells.
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Affiliation(s)
| | | | | | | | | | - Hongyun Jia
- Department of clinical examination, the second affiliated hospital of Guangzhou Medical University, Guangzhou, China.
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Targeting of the MET receptor tyrosine kinase by small molecule inhibitors leads to MET accumulation by impairing the receptor downregulation. FEBS Lett 2014; 588:653-8. [PMID: 24440350 DOI: 10.1016/j.febslet.2013.12.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 11/25/2013] [Accepted: 12/17/2013] [Indexed: 11/20/2022]
Abstract
The MET receptor tyrosine kinase is deregulated primarily via overexpression or point mutations in various human cancers and different strategies for MET inhibition are currently evaluated in clinical trials. We observed by Western blot analysis and by Flow cytometry that MET inhibition by different MET small molecule inhibitors surprisingly increases in a dose-dependent manner total MET levels in treated cells. Mechanistically, this inhibition-related MET accumulation was associated with reduced Tyr1003 phosphorylation and MET physical association with the CBL ubiquitin ligase with concomitant decrease in MET ubiquitination. These data may suggest careful consideration for design of anti-MET clinical protocols.
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Liu Q, Liu J. Signaling pathways in hepatocellular carcinoma. Shijie Huaren Xiaohua Zazhi 2014; 22:59-66. [DOI: 10.11569/wcjd.v22.i1.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma is a complex multistep process involving progressive abnormalities of hepatocellular survival, proliferation, apoptosis and differentiation. Currently, accumulating evidence has demonstrated that the development of hepatocellular carcinoma is closely associated with dysregulation of several signaling pathways. Aberrant activation of these signaling cascades often leads to the over-expression of oncogenes and down-regulation of tumor suppressor genes, thus promoting cell cycle progression and apoptosis evasion. Here, we discuss some signaling pathways in hepatocellular carcinoma.
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The Molecular Crosstalk between the MET Receptor Tyrosine Kinase and the DNA Damage Response-Biological and Clinical Aspects. Cancers (Basel) 2013; 6:1-27. [PMID: 24378750 PMCID: PMC3980615 DOI: 10.3390/cancers6010001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 12/06/2013] [Accepted: 12/06/2013] [Indexed: 02/07/2023] Open
Abstract
Radiation therapy remains an imperative treatment modality for numerous malignancies. Enduring significant technical achievements both on the levels of treatment planning and radiation delivery have led to improvements in local control of tumor growth and reduction in healthy tissue toxicity. Nevertheless, resistance mechanisms, which presumably also involve activation of DNA damage response signaling pathways that eventually may account for loco-regional relapse and consequent tumor progression, still remain a critical problem. Accumulating data suggest that signaling via growth factor receptor tyrosine kinases, which are aberrantly expressed in many tumors, may interfere with the cytotoxic impact of ionizing radiation via the direct activation of the DNA damage response, leading eventually to so-called tumor radioresistance. The aim of this review is to overview the current known data that support a molecular crosstalk between the hepatocyte growth factor receptor tyrosine kinase MET and the DNA damage response. Apart of extending well established concepts over MET biology beyond its function as a growth factor receptor, these observations directly relate to the role of its aberrant activity in resistance to DNA damaging agents, such as ionizing radiation, which are routinely used in cancer therapy and advocate tumor sensitization towards DNA damaging agents in combination with MET targeting.
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Advanced unresectable hepatocellular carcinoma: new biologics as fresh ammunition or clues to disease understanding? Curr Opin Oncol 2013; 25:409-16. [PMID: 23680714 DOI: 10.1097/cco.0b013e3283621074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Hepatocellular carcinoma (HCC) is a prevalent malignancy associated with a guarded prognosis. At present, sorafenib is the only approved systemic therapy for patients with advanced disease. The effect of sorafenib on overall survival is modest and limited in time by the occurrence of drug resistance. RECENT FINDINGS Together with the increasing knowledge of molecular pathways involved in HCC, targeted molecules have been developed and tested in first and second line following sorafenib. These include antiangiogenic drugs, as well as biologicals inhibiting cell proliferation and survival. Recent phase III trials investigated sunitinib, linifanib, brivanib and erlotinib, but none of them were found superior to sorafenib. New findings in mechanisms of drug resistance create opportunities in the treatment of sorafenib-refractory disease, with cMET inhibition as the most promising approach. This article reviews the pathways involved in HCC and their targets as well as potential strategies for drug development in the future. SUMMARY Advanced HCC has been the subject of intensive clinical research following the success of sorafenib. Despite many failures, some agents show promising results in phase II trials. Targeting new pathways, using multidrug regimens and tailoring treatment guided by predictive markers should allow new successes.
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Wu YM, Liu CH, Huang MJ, Lai HS, Lee PH, Hu RH, Huang MC. C1GALT1 enhances proliferation of hepatocellular carcinoma cells via modulating MET glycosylation and dimerization. Cancer Res 2013; 73:5580-90. [PMID: 23832667 DOI: 10.1158/0008-5472.can-13-0869] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Altered glycosylation is a hallmark of cancer. The core 1 β1,3-galactosyltransferase (C1GALT1) controls the formation of mucin-type O-glycans, far overlooked and underestimated in cancer. Here, we report that C1GALT1 mRNA and protein are frequently overexpressed in hepatocellular carcinoma tumors compared with nontumor liver tissues, where it correlates with advanced tumor stage, metastasis, and poor survival. Enforced expression of C1GALT1 was sufficient to enhance cell proliferation, whereas RNA interference-mediated silencing of C1GALT1 was sufficient to suppress cell proliferation in vitro and in vivo. Notably, C1GALT1 attenuation also suppressed hepatocyte growth factor (HGF)-mediated phosphorylation of the MET kinase in hepatocellular carcinoma cells, whereas enforced expression of C1GALT1 enhanced MET phosphorylation. MET blockade with PHA665752 inhibited C1GALT1-enhanced cell viability. In support of these results, we found that the expression level of phospho-MET and C1GALT1 were associated in primary hepatocellular carcinoma tissues. Mechanistic investigations showed that MET was decorated with O-glycans, as revealed by binding to Vicia villosa agglutinin and peanut agglutinin. Moreover, C1GALT1 modified the O-glycosylation of MET, enhancing its HGF-induced dimerization and activation. Together, our results indicate that C1GALT1 overexpression in hepatocellular carcinoma activates HGF signaling via modulation of MET O-glycosylation and dimerization, providing new insights into how O-glycosylation drives hepatocellular carcinoma pathogenesis.
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Affiliation(s)
- Yao-Ming Wu
- Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
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Roskoski R. The preclinical profile of crizotinib for the treatment of non-small-cell lung cancer and other neoplastic disorders. Expert Opin Drug Discov 2013; 8:1165-79. [DOI: 10.1517/17460441.2013.813015] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Hu CT, Cheng CC, Pan SM, Wu JR, Wu WS. PKC mediates fluctuant ERK-paxillin signaling for hepatocyte growth factor-induced migration of hepatoma cell HepG2. Cell Signal 2013; 25:1457-67. [PMID: 23524339 DOI: 10.1016/j.cellsig.2013.03.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 03/12/2013] [Indexed: 12/23/2022]
Abstract
Hepatocyte growth factor (HGF) is critical for triggering metastasis of hepatocellular carcinoma cell (HCC). Extracellular signal-regulated kinase (ERK) mediates HGF-induced cell migration via focal adhesion signaling. Protein kinase C (PKC) is a negative regulator of ERK activation, however, both PKC and ERK were required for HGF-induced cell migration. To address this intriguing issue, the signal mechanisms for HGF-induced HepG2 cell migration were investigated in a long-term fashion. HGF-induced phosphorylations of ERK, Src (at Tyr 416) and paxillin (at Ser178 and Tyr31) were up and down for 3 times within 24h. HGF also induced fluctuant PKC activation and Rac degradation. Consistently, HGF induced intermittent actin polarization within 24h, which can be blocked by the inhibitors of PKC (Bisindolymaleimide) and ERK. Inhibitor studies revealed that ERK was required for HGF-induced paxillin phosphorylation at Ser178, whereas PKC and Rac-1 may suppress HGF-induced phosphorylation of ERK and paxillin (at Ser178) and upregulate phosphorylation of paxillin at Tyr31. Based on shRNA technique, PKCα and δ were responsible for suppressing HGF-induced phosphorylation of ERK and paxillin (at Ser178), whereas PKC ε and ζ were required for phosphorylation of paxillin at Tyr31. The HGF-induced fluctuant signaling is reminiscent of c-Met endocytosis. Using Concanavalin A, an inhibitor of endocytosis, we found that c-Met endocytosis was required for PKC to suppress ERK phosphorylation. Moreover, HGF-induced c-Met degradation was also fluctuant, which can be prevented by Bisindolymaleimide. In conclusion, PKC is critical for mediating HGF-induced fluctuant ERK-paxillin signaling during cell migration, probably via triggering endosomal degradation of c-Met.
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Affiliation(s)
- Chi-Tan Hu
- Research Centre for Hepatology, Department of Internal Medicine, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan
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Abstract
PURPOSE The proto-oncogene beta-catenin is linked to an abnormal activation of the Wnt/beta-catenin-pathway and shows mutations in 50-90 % of hepatoblastoma (HB). Corresponding, the recently published murine orthotopic HB model differs from the former subcutaneous model by nuclear beta-catenin distribution. As the nuclear localization of beta-catenin is considered to reflect a more aggressive tumor growth, the influence of beta-catenin inhibition on cell viability and drug-efficiency in HB cells was analyzed. METHODS Beta-catenin distribution in HB cells was analyzed by immunofluorescence. The influence of beta-catenin inhibitors Celecoxib, Etodolac, ICG001, and MET kinase inhibitor (SU11274) alone and in combination with cisplatin (CDDP) on HB cell lines (HuH6, HepT1) was evaluated by cell viability assays and BrdU incorporation. RESULTS Celecoxib and ICG001 reduced dose-dependently HB cell viability and decreased nuclear beta-catenin in cultivated HB cells. Etodolac was without influence at concentrations up to 100 μM. Combinations of Celecoxib or ICG001 with MET kinase inhibitor or CDDP resulted in additive reduction of cell viability. CONCLUSION Pharmaceutical beta-catenin inhibitors can modulate the nuclear localization of beta-catenin and reduce cell viability of HB cells in vitro. These promising effects might optimize the outcome of high-risk HB. The orthotopic HB model is a suitable basis for further in vivo studies.
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Abstract
Under normal physiological conditions, the hepatocyte growth factor (HGF) and its receptor, the MET transmembrane tyrosine kinase (cMET), are involved in embryogenesis, morphogenesis, and wound healing. The HGF-cMET axis promotes cell survival, proliferation, migration, and invasion via modulation of epithelial-mesenchymal interactions. Hepatocellular cancer (HCC) is the third most common cause of worldwide cancer-related mortality; advanced disease is associated with a paucity of therapeutic options and a five-year survival rate of only 10%. Dysregulation of the HGF-cMET pathway is implicated in HCC carcinogenesis and progression through activation of multiple signaling pathways; therefore, cMET inhibition is a promising therapeutic strategy for HCC treatment. The authors review HGF-cMET structure and function in normal tissue and in HCC, cMET inhibition in HCC, and future strategies for biomarker identification.
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Phage displayed peptides/antibodies recognizing growth factors and their tyrosine kinase receptors as tools for anti-cancer therapeutics. Int J Mol Sci 2012; 13:5254-5277. [PMID: 22606042 PMCID: PMC3344278 DOI: 10.3390/ijms13045254] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 04/09/2012] [Accepted: 04/20/2012] [Indexed: 12/21/2022] Open
Abstract
The basic idea of displaying peptides on a phage, introduced by George P. Smith in 1985, was greatly developed and improved by McCafferty and colleagues at the MRC Laboratory of Molecular Biology and, later, by Barbas and colleagues at the Scripps Research Institute. Their approach was dedicated to building a system for the production of antibodies, similar to a naïve B cell repertoire, in order to by-pass the standard hybridoma technology that requires animal immunization. Both groups merged the phage display technology with an antibody library to obtain a huge number of phage variants, each of them carrying a specific antibody ready to bind its target molecule, allowing, later on, rare phage (one in a million) to be isolated by affinity chromatography. Here, we will briefly review the basis of the technology and the therapeutic application of phage-derived bioactive molecules when addressed against key players in tumor development and progression: growth factors and their tyrosine kinase receptors.
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Liu Y, Shi QF, Ye YC, Tashiro SI, Onodera S, Ikejima T. Activated O2^|^bull;^|^minus; and H2O2 Mediated Cell Survival in SU11274-Treated Non-Small-Cell Lung Cancer A549 Cells via c-Met^|^ndash;PI3K^|^ndash;Akt and c-Met^|^ndash;Grb2/SOS^|^ndash;Ras^|^ndash;p38 Pathways. J Pharmacol Sci 2012; 119:150-9. [DOI: 10.1254/jphs.12048fp] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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