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Kwon MR, Park JS, Ko EJ, Park J, Ju EJ, Shin SH, Son GW, Lee HW, Park YY, Kang MH, Kim YJ, Kim BM, Lee HJ, Kim TW, Kim CJ, Song SY, Park SS, Jeong SY. Ibulocydine Inhibits Migration and Invasion of TNBC Cells via MMP-9 Regulation. Int J Mol Sci 2024; 25:6123. [PMID: 38892310 PMCID: PMC11173234 DOI: 10.3390/ijms25116123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Triple-negative breast cancer (TNBC) accounts for approximately 15-20% of all breast cancer types, indicating a poor survival prognosis with a more aggressive biology of metastasis to the lung and a short response duration to available therapies. Ibulocydine (IB) is a novel (cyclin-dependent kinase) CDK7/9 inhibitor prodrug displaying potent anti-cancer effects against various cancer cell types. We performed in vitro and in vivo experiments to determine whether IB inhibits metastasis and eventually overcomes the poor drug response in TNBC. The result showed that IB inhibited the growth of TNBC cells by inducing caspase-mediated apoptosis and blocking metastasis by reducing MMP-9 expression in vitro. Concurrently, in vivo experiments using the metastasis model showed that IB inhibited metastasis of MDA-MB-231-Luc cells to the lung. Collectively, these results demonstrate that IB inhibited the growth of TNBC cells and blocked metastasis by regulating MMP-9 expression, suggesting a novel therapeutic agent for metastatic TNBC.
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Affiliation(s)
- Mi-Ri Kwon
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Ji-Soo Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun-Jung Ko
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Jin Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Eun-Jin Ju
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Seol-Hwa Shin
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Ga-Won Son
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Hye-Won Lee
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Yun-Yong Park
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Myoung-Hee Kang
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Yeon-Joo Kim
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Byeong-Moon Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee-Jin Lee
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Tae-Won Kim
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Chong-Jai Kim
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Si-Yeol Song
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Seok-Soon Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Seong-Yun Jeong
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
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Liang H, Du J, Elhassan RM, Hou X, Fang H. Recent progress in development of cyclin-dependent kinase 7 inhibitors for cancer therapy. Expert Opin Investig Drugs 2021; 30:61-76. [PMID: 33183110 DOI: 10.1080/13543784.2021.1850693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Introduction: Cyclin-dependent kinase 7 (CDK7) is a part of the CDK-activating kinase family (CAK) which has a key role in the cell cycle and transcriptional regulation. Several lines of evidence suggest that CDK7 is a promising therapeutic target for cancer. CDK7 selective inhibitors such as SY-5609 and CT7001 are in clinical development. Areas covered: We explore the biology of CDK7 and its role in cancer and follow this with an evaluation of the preclinical and clinical progress of CDK7 inhibitors, and their potential in the clinic. We searched PubMed and ClinicalTrials to identify relevant data from the database inception to 14 October 2020. Expert opinion: CDK7 inhibitors are next generation therapeutics for cancer. However, there are still challenges which include selectively, side effects, and drug resistance. Nevertheless, with ongoing clinical development of these inhibitors and greater analysis of their target, CDK7 inhibitors will become a promising approach for treatment of cancer in the near future.
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Affiliation(s)
- Hanzhi Liang
- Department of Medicinal Chemistry and Key Laboratory of Chemical Biology of Natural Products (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
| | - Jintong Du
- Shandong Cancer Hospital and Institute, Shandong First Medical University , Jinan, Shandong, China
| | - Reham M Elhassan
- Department of Medicinal Chemistry and Key Laboratory of Chemical Biology of Natural Products (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
| | - Xuben Hou
- Department of Medicinal Chemistry and Key Laboratory of Chemical Biology of Natural Products (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
| | - Hao Fang
- Department of Medicinal Chemistry and Key Laboratory of Chemical Biology of Natural Products (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
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Al-Warhi T, Abo-Ashour MF, Almahli H, Alotaibi OJ, Al-Sanea MM, Al-Ansary GH, Ahmed HY, Elaasser MM, Eldehna WM, Abdel-Aziz HA. Novel [( N-alkyl-3-indolylmethylene)hydrazono]oxindoles arrest cell cycle and induce cell apoptosis by inhibiting CDK2 and Bcl-2: synthesis, biological evaluation and in silico studies. J Enzyme Inhib Med Chem 2020; 35:1300-1309. [PMID: 32522063 PMCID: PMC7717600 DOI: 10.1080/14756366.2020.1773814] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/03/2020] [Accepted: 05/17/2020] [Indexed: 12/21/2022] Open
Abstract
As a continuation for our previous work, a novel set of N-alkylindole-isatin conjugates (7, 8a-c, 9 and 10a-e) is here designed and synthesised with the prime aim to develop more efficient isatin-based antitumor candidates. Utilising the SAR outputs from the previous study, our design here is based on appending four alkyl groups with different length (ethyl and n-propyl), bulkiness (iso-propyl) and unsaturation (allyl) on N-1 of indole motif, with subsequent conjugation with different N-unsubstituted isatin moieties to furnish the target conjugates. As planned, the adopted strategy achieved a substantial improvement in the growth inhibitory profile for the target conjugates in comparison to the reported lead VI. The best results were obtained with N-propylindole -5-methylisatin hybrid 8a which displayed broad spectrum anti-proliferative action with efficient sub-panel GI50 (MG-MID) range from 1.33 to 4.23 µM, and promising full-panel GI50 (MG-MID) equals 3.10 µM, at the NCI five-dose assay. Also, hybrid 8a was able to provoke cell cycle disturbance and apoptosis in breast T-47D cells as evidenced by the DNA flow cytometry and Annexin V-FITC/PI assays. Furthermore, hybrid 8a exhibited good inhibitory action against cell cycle regulator CDK2 protein kinase and the anti-apoptotic Bcl-2 protein (IC50= 0.85 ± 0.03 and 0.46 ± 0.02 µM, respectively). Interestingly, molecular docking for hybrid 8a in CDK2 and Bcl-2 active sites unveiled that N-propyl group is involved in significant hydrophobic interactions. Taken together, the results suggested conjugate 8a as a promising lead for further development and optimisation as an efficient antitumor drug.
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Affiliation(s)
- Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mahmoud F. Abo-Ashour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, Egypt
| | - Hadia Almahli
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
| | - Ohoud J. Alotaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohammad M. Al-Sanea
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Aljouf, Saudi Arabia
| | - Ghada H. Al-Ansary
- Department of Pharmaceutical Chemistry, Pharmacy Program, Batterejee Medical College, Jeddah, Saudi Arabia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Hanaa Y. Ahmed
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
| | - Mahmoud M. Elaasser
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Hatem A. Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, Egypt
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Shen S, Dean DC, Yu Z, Duan Z. Role of cyclin-dependent kinases (CDKs) in hepatocellular carcinoma: Therapeutic potential of targeting the CDK signaling pathway. Hepatol Res 2019; 49:1097-1108. [PMID: 31009153 DOI: 10.1111/hepr.13353] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 02/23/2019] [Accepted: 03/28/2019] [Indexed: 12/12/2022]
Abstract
Liver cancer is the fourth leading cause of cancer related mortality in the world, with hepatocellular carcinoma (HCC) representing the most common primary subtype. Two-thirds of HCC patients have advanced disease when diagnosed, and for these patients, treatment strategies remain limited. In addition, there is a high incidence of tumor recurrence after surgical resection with the current treatment regimens. The development of novel and more effective agents is required. Cyclin-dependent kinases (CDKs) constitute a family of 21 different protein kinases involved in regulating cell proliferation, apoptosis, and drug resistance, and are evaluated in preclinical and clinical trials as chemotherapeutics. To summarize and discuss the therapeutic potential of targeting CDKs in HCC, recent published articles identified from PubMed were comprehensively reviewed. The key words included hepatocellular carcinoma, cyclin-dependent kinases, and CDK inhibitors. This review focuses on the emerging evidence from studies describing the genetic and functional aspects of CDKs in HCC. We also present an overview of CDK inhibitors that have shown efficacy in laboratory studies of HCC. Although many of the studies assessing CDK-targeting therapies in HCC are at the preclinical stage, there is significant evidence that CDK inhibitors used alone or in combination with established chemotherapy drugs could have significant applications in HCC.
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Affiliation(s)
- Shen Shen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at University of Los Angeles, Los Angeles, CA, USA
| | - Dylan C Dean
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at University of Los Angeles, Los Angeles, CA, USA
| | - Zujiang Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenfeng Duan
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at University of Los Angeles, Los Angeles, CA, USA
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5
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Inhibition of anaplastic lymphoma kinase promotes apoptosis and suppresses proliferation in human hepatocellular carcinoma. Anticancer Drugs 2019; 29:513-519. [PMID: 29570100 DOI: 10.1097/cad.0000000000000616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Our study was to examine the roles of crizotinib and ceritinib in hepatocellular carcinoma (HCC) cells and explore the possible mechanisms. MTT assay was employed to examine the proliferation of five HCC cell lines treated with various concentrations of crizotinib or ceritinib. HepG2 and HCCLM3 cells were incubated with 2 nmol/l ceritinib for 1 week, followed by crystal violet staining and cell counting. Protein amounts of t-ALK, p-ALK, t-AKT, p-AKT, t-ERK, p-ERK, Mcl-1, survivin, and XIAP in HepG2 cells under different culture conditions were evaluated by western blot. HepG2 and HCCLM3 cells were treated with vehicle or ceritinib and measured by flow cytometry apoptosis analysis with Annexin-V/propidium iodide staining. MTT assay showed that both crizotinib and ceritinib suppressed the proliferation of various human HCC cells. Crystal violet staining analysis also indicated that ceritinib effectively inhibited human HCC cell proliferation. Western blot analysis indicated that both crizotinib and ceritinib inhibited ALK, AKT, and ERK phosphorylations. In addition, ceritinib reduced antiapoptotic gene expressions in HepG2 cells. Flow cytometry analysis indicated that ceritinib induced HepG2 and HCCLM3 cells apoptosis. ALK inhibitor exhibited antitumor effects by inhibiting ALK activation, repressing AKT and ERK pathways, and suppressing antiapoptotic gene expressions, which subsequently promoted apoptosis and suppressed HCC cell proliferations.
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Farouk F, Shamma R. Chemical structure modifications and nano-technology applications for improving ADME-Tox properties, a review. Arch Pharm (Weinheim) 2019; 352:e1800213. [DOI: 10.1002/ardp.201800213] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/02/2018] [Accepted: 11/11/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Faten Farouk
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Ahram Canadian University; Giza Egypt
| | - Rehab Shamma
- Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy; Cairo University; Cairo Egypt
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Bian J, Ren J, Li Y, Wang J, Xu X, Feng Y, Tang H, Wang Y, Li Z. Discovery of Wogonin-based PROTACs against CDK9 and capable of achieving antitumor activity. Bioorg Chem 2018; 81:373-381. [DOI: 10.1016/j.bioorg.2018.08.028] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/17/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
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8
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Zhong L, Yang S, Jia Y, Lei K. Inhibition of cyclin‐dependent kinase 7 suppresses human hepatocellular carcinoma by inducing apoptosis. J Cell Biochem 2018; 119:9742-9751. [PMID: 30145799 DOI: 10.1002/jcb.27292] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 06/26/2018] [Indexed: 02/04/2023]
Affiliation(s)
- Liqiang Zhong
- Department of Oncology The Second People’s Hospital of Yibin Yibin China
| | - Sihao Yang
- Department of Traditional Chinese Medicine The Second People’s Hospital of Yibin Yibin China
| | - Yuming Jia
- Department of Oncology The Second People’s Hospital of Yibin Yibin China
| | - Kaijian Lei
- Department of Oncology The Second People’s Hospital of Yibin Yibin China
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Ito M, Tanaka T, Toita A, Uchiyama N, Kokubo H, Morishita N, Klein MG, Zou H, Murakami M, Kondo M, Sameshima T, Araki S, Endo S, Kawamoto T, Morin GB, Aparicio SA, Nakanishi A, Maezaki H, Imaeda Y. Discovery of 3-Benzyl-1-( trans-4-((5-cyanopyridin-2-yl)amino)cyclohexyl)-1-arylurea Derivatives as Novel and Selective Cyclin-Dependent Kinase 12 (CDK12) Inhibitors. J Med Chem 2018; 61:7710-7728. [PMID: 30067358 DOI: 10.1021/acs.jmedchem.8b00683] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cyclin-dependent kinase 12 (CDK12) plays a key role in the coordination of transcription with elongation and mRNA processing. CDK12 mutations found in tumors and CDK12 inhibition sensitize cancer cells to DNA-damaging reagents and DNA-repair inhibitors. This suggests that CDK12 inhibitors are potential therapeutics for cancer that may cause synthetic lethality. Here, we report the discovery of 3-benzyl-1-( trans-4-((5-cyanopyridin-2-yl)amino)cyclohexyl)-1-arylurea derivatives as novel and selective CDK12 inhibitors. Structure-activity relationship studies of a HTS hit, structure-based drug design, and conformation-oriented design using the Cambridge Structural Database afforded the optimized compound 2, which exhibited not only potent CDK12 (and CDK13) inhibitory activity and excellent selectivity but also good physicochemical properties. Furthermore, 2 inhibited the phosphorylation of Ser2 in the C-terminal domain of RNA polymerase II and induced growth inhibition in SK-BR-3 cells. Therefore, 2 represents an excellent chemical probe for functional studies of CDK12 and could be a promising lead compound for drug discovery.
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Affiliation(s)
- Masahiro Ito
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Toshio Tanaka
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Akinori Toita
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Noriko Uchiyama
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Hironori Kokubo
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Nao Morishita
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Michael G Klein
- Department of Structural Biology , Takeda California Inc. , 10410 Science Center Drive , San Diego , California 92121 , United States
| | - Hua Zou
- Department of Structural Biology , Takeda California Inc. , 10410 Science Center Drive , San Diego , California 92121 , United States
| | - Morio Murakami
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Mitsuyo Kondo
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Tomoya Sameshima
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Shinsuke Araki
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Satoshi Endo
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Tomohiro Kawamoto
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Gregg B Morin
- Genome Sciences Centre , British Columbia Cancer Agency , 675 West 10th Avenue , Vancouver , British Columbia V5Z 1L3 , Canada.,Department of Medical Genetics , University of British Columbia , Vancouver , British Columbia V6H 3N1 , Canada
| | - Samuel A Aparicio
- Department of Molecular Oncology , British Columbia Cancer Agency , 675 West 10th Avenue , Vancouver , British Columbia V5Z 1L3 , Canada
| | - Atsushi Nakanishi
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Hironobu Maezaki
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
| | - Yasuhiro Imaeda
- Pharmaceutical Research Division , Takeda Pharmaceutical Company Limited , 26-1, Muraoka-Higashi 2-chome , Fujisawa , Kanagawa 251-8555 , Japan
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Wakasugi H, Takahashi H, Niinuma T, Kitajima H, Oikawa R, Matsumoto N, Takeba Y, Otsubo T, Takagi M, Ariizumi Y, Suzuki M, Okuse C, Iwabuchi S, Nakano M, Akutsu N, Kang JH, Matsui T, Yamada N, Sasaki H, Yamamoto E, Kai M, Sasaki Y, Sasaki S, Tanaka Y, Yotsuyanagi H, Tsutsumi T, Yamamoto H, Tokino T, Nakase H, Suzuki H, Itoh F. Dysregulation of miRNA in chronic hepatitis B is associated with hepatocellular carcinoma risk after nucleos(t)ide analogue treatment. Cancer Lett 2018; 434:91-100. [PMID: 30026054 DOI: 10.1016/j.canlet.2018.07.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/04/2018] [Accepted: 07/12/2018] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus (HBV) infection is a major cause of hepatocellular carcinoma (HCC). Nucleos(t)ide analogue (NA) therapy effectively reduces the incidence of HCC, but it does not completely prevent the disease. Here, we show that dysregulation of microRNAs (miRNAs) is involved in post-NA HCC development. We divided chronic hepatitis B (CHB) patients who received NA therapy into two groups: 1) those who did not develop HCC during the follow-up period after NA therapy (no-HCC group) and 2) those who did (HCC group). miRNA expression profiles were significantly altered in CHB tissues as compared to normal liver, and the HCC group showed greater alteration than the no-HCC group. NA treatment restored the miRNA expression profiles to near-normal in the no-HCC group, but it was less effective in the HCC group. A number of miRNAs implicated in HCC, including miR-101, miR-140, miR-152, miR-199a-3p, and let-7g, were downregulated in CHB. Moreover, we identified CDK7 and TACC2 as novel target genes of miR-199a-3p. Our results suggest that altered miRNA expression in CHB contributes to HCC development, and that improvement of miRNA expression after NA treatment is associated with reduced HCC risk.
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Affiliation(s)
- Hideki Wakasugi
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan; Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hideaki Takahashi
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan; Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan; Division of Gastroenterology, Department of Internal Medicine, St. Marianna University School of Medicine Yokohama City Seibu Hospital, Yokohama, Japan
| | - Takeshi Niinuma
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroshi Kitajima
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Ritsuko Oikawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Naoki Matsumoto
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yuko Takeba
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Takehito Otsubo
- Department of Gastroenterological and General Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University, Kawasaki, Japan
| | - Yasushi Ariizumi
- Department of Pathology, St. Marianna University, Kawasaki, Japan
| | - Michihiro Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan; Division of Gastroenterology and Hepatology, Kawasaki Municipal Tama Hospital, Japan
| | - Chiaki Okuse
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan; Division of Gastroenterology and Hepatology, Kawasaki Municipal Tama Hospital, Japan
| | - Shogo Iwabuchi
- Center for Hepato-Biliary-Pancreatic and Digestive Disease, Shonan Fujisawa Tokushukai Hospital, Kanagawa, Japan
| | - Masayuki Nakano
- Department of Pathology, Shonan Fujisawa Tokushukai Hospital, Kanagawa, Japan
| | - Noriyuki Akutsu
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Jong-Hon Kang
- Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Takeshi Matsui
- Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Norie Yamada
- Department of Internal Medicine, Center for Liver Diseases, Kiyokawa Hospital, Tokyo, Japan
| | - Hajime Sasaki
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Eiichiro Yamamoto
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan; Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Masahiro Kai
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yasushi Sasaki
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Shigeru Sasaki
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yasuhito Tanaka
- Department of Virology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan; Department Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Yotsuyanagi
- Division of Infectious Diseases and Applied Immunology, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Takeya Tsutsumi
- Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo, Japan
| | - Hiroyuki Yamamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Takashi Tokino
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo, Japan.
| | - Fumio Itoh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
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11
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Upregulation of Mcl-1 inhibits JQ1-triggered anticancer activity in hepatocellular carcinoma cells. Biochem Biophys Res Commun 2018; 495:2456-2461. [DOI: 10.1016/j.bbrc.2017.12.153] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/25/2017] [Indexed: 01/01/2023]
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12
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Perlíková P, Hocek M. Pyrrolo[2,3-d]pyrimidine (7-deazapurine) as a privileged scaffold in design of antitumor and antiviral nucleosides. Med Res Rev 2017; 37:1429-1460. [PMID: 28834581 PMCID: PMC5656927 DOI: 10.1002/med.21465] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 12/17/2022]
Abstract
7-Deazapurine (pyrrolo[2,3-d]pyrimidine) nucleosides are important analogues of biogenic purine nucleosides with diverse biological activities. Replacement of the N7 atom with a carbon atom makes the five-membered ring more electron rich and brings a possibility of attaching additional substituents at the C7 position. This often leads to derivatives with increased base-pairing in DNA or RNA or better binding to enzymes. Several types of 7-deazapurine nucleosides with potent cytostatic or cytotoxic effects have been identified. The most promising are 7-hetaryl-7-deazaadenosines, which are activated in cancer cells by phosphorylation and get incorporated both to RNA (causing inhibition of proteosynthesis) and to DNA (causing DNA damage). Mechanism of action of other types of cytostatic nucleosides, 6-hetaryl-7-deazapurine and thieno-fused deazapurine ribonucleosides, is not yet known. Many 7-deazaadenosine derivatives are potent inhibitors of adenosine kinases. Many types of sugar-modified derivatives of 7-deazapurine nucleosides are also strong antivirals. Most important are 2'-C-methylribo- or 2'-C-methyl-2'-fluororibonucleosides with anti-HCV activities (several compounds underwent clinical trials). Some underexplored areas of potential interest are also outlined.
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Affiliation(s)
- Pavla Perlíková
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesCZ‐16610Prague 6Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesCZ‐16610Prague 6Czech Republic
- Department of Organic ChemistryFaculty of ScienceCharles University in PragueCZ‐12843Prague 2Czech Republic
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13
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Pang C, Huang G, Luo K, Dong Y, He F, Du G, Xiao M, Cai W. miR-206 inhibits the growth of hepatocellular carcinoma cells via targeting CDK9. Cancer Med 2017; 6:2398-2409. [PMID: 28940993 PMCID: PMC5633544 DOI: 10.1002/cam4.1188] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/22/2017] [Accepted: 08/12/2017] [Indexed: 12/24/2022] Open
Abstract
miR‐206 plays an important role in regulating the growth of multiple cancer cells. Cyclin‐dependent kinase 9 (CDK9) stimulates the production of abundant prosurvival proteins, leading to impaired apoptosis of cancer cells. However, it is unknown whether CDK9 is involved in the miR‐206‐mediated growth suppression of hepatocellular carcinoma (HCC) cells. In this study, we found that the expression level of miR‐206 was significantly lower in HCC cell lines than that in normal hepatic cell line (L02). Meanwhile, CDK9 was upregulated in HCC cell lines. Moreover, miR‐206 downregulated CDK9 in HCC cells via directly binding to its mRNA 3′ UTR, which resulted in a decrease of RNA PolII Ser2 phosphorylation and Mcl‐1 level. Additionally, miR‐206 suppressed the cell proliferation, and induced cell cycle arrest and apoptosis. Similarly, silence or inhibition of CDK9 also repressed the cell proliferation, and induced cell cycle arrest and apoptosis. Taken together, the results demonstrated that miR‐206 inhibited the growth of HCC cells through targeting CDK9, suggesting that the miR‐206‐CDK9 pathway may be a novel target for the treatment of HCC.
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Affiliation(s)
- Chi Pang
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
| | - Gang Huang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, 400038, China
| | - Kaili Luo
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
| | - Yuying Dong
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
| | - Fengtian He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, 400038, China
| | - Guankui Du
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
| | - Man Xiao
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
| | - Wangwei Cai
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, 570102, China
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14
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Khan Z, Khan AA, Yadav H, Prasad GBKS, Bisen PS. Survivin, a molecular target for therapeutic interventions in squamous cell carcinoma. Cell Mol Biol Lett 2017; 22:8. [PMID: 28536639 PMCID: PMC5415770 DOI: 10.1186/s11658-017-0038-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/27/2017] [Indexed: 12/14/2022] Open
Abstract
Squamous cell carcinoma (SCC) is the most common cancer worldwide. The treatment of locally advanced disease generally requires various combinations of radiotherapy, surgery, and systemic therapy. Despite aggressive multimodal treatment, most of the patients relapse. Identification of molecules that sustain cancer cell growth and survival has made molecular targeting a feasible therapeutic strategy. Survivin is a member of the Inhibitor of Apoptosis Protein (IAP) family, which is overexpressed in most of the malignancies including SCC and totally absent in most of the normal tissues. This feature makes survivin an ideal target for cancer therapy. It orchestrates several important mechanisms to support cancer cell survival including inhibition of apoptosis and regulation of cell division. Overexpression of survivin in tumors is also associated with poor prognosis, aggressive tumor behavior, resistance to therapy, and high tumor recurrence. Various strategies have been developed to target survivin expression in cancer cells, and their effects on apoptosis induction and tumor growth attenuation have been demonstrated. In this review, we discuss recent advances in therapeutic potential of survivin in cancer treatment.
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Affiliation(s)
- Zakir Khan
- School of Studies in Biotechnology, Jiwaji University, Gwalior, 474001 MP India.,Department of Biomedical Sciences, Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, CA 90048 USA
| | - Abdul Arif Khan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hariom Yadav
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892 USA
| | | | - Prakash Singh Bisen
- School of Studies in Biotechnology, Jiwaji University, Gwalior, 474001 MP India
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15
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Park SS, Jwa E, Shin SH, Ju EJ, Park I, Pak JH, Hwang JJ, Cho DH, Kim BM, Kim SB, Lee JS, Song SY, Jeong SY, Choi EK. Ibulocydine sensitizes human hepatocellular carcinoma cells to TRAIL-induced apoptosis via calpain-mediated Bax cleavage. Int J Biochem Cell Biol 2016; 83:47-55. [PMID: 27923747 DOI: 10.1016/j.biocel.2016.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/22/2016] [Accepted: 12/02/2016] [Indexed: 11/26/2022]
Abstract
Tumor necrosis factor-related apoptosis-induced ligand (TRAIL) induces apoptosis selectively in cancer cells without affecting the majority of normal human cells. However, hepatocellular carcinoma (HCC) cells often display resistance to TRAIL-induced apoptosis. Ibulocydine (IB) is an isobutyrate ester pro-drug of a novel synthetic Cdk inhibitor that targets Cdk7 and Cdk9. In this study, we show that treatment with subtoxic doses of IB in combination with TRAIL displays potent cytotoxicity in TRAIL-resistant human HCC cells. Combination of IB and TRAIL was found to synergistically induce apoptosis through activation of caspases, which was blocked by a pan-caspase inhibitor (zVAD). Although the expression of Mcl-1 and survivin were reduced by IB plus TRAIL, overexpression of Mcl-1 and survivin did not block the cell death induced by co-treatment. Moreover, overexpression of Bcl-xL did not significantly interfere with the cell death induced by co-treatment of IB and TRAIL. Interestingly, the combination treatment induced cleavage of Bax, which was translocated to mitochondria upon induction of apoptosis. Furthermore, down-regulation of Bax by small interfering RNA effectively reduced the cell death and loss of mitochondrial membrane potential (MMP) caused by co-treatment with IB and TRAIL. Finally, pre-treatment of HCC cells with a calpain inhibitor effectively blocked IB plus TRAIL-induced cleavage of Bax and apoptosis. Collectively, our results demonstrate that IB increases the sensitivity of human HCC cells to TRAIL via mitochondria signaling pathway mediated by calpain-induced cleavage of Bax, suggesting that combined treatment with IB and TRAIL may offer an effective therapeutic strategy for human HCC.
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Affiliation(s)
- Seok Soon Park
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eunjin Jwa
- Department of Radiation Oncology, University of Soonchunhyang College of Medicine, Cheonan, Republic of Korea
| | - Seol Hwa Shin
- Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eun Jin Ju
- Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Intae Park
- Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jhang Ho Pak
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung Jin Hwang
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea; Center for Advancing Cancer Therapeutics, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong-Hyung Cho
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Republic of Korea
| | - B Moon Kim
- Department of Chemistry, Seoul National University, Seoul, Republic of Korea
| | - Sung-Bae Kim
- Department of Oncology, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung Shin Lee
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Internal Medicine,Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Si Yeol Song
- Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea; Center for Advancing Cancer Therapeutics, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Radiation Oncology, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Seong-Yun Jeong
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea; Center for Advancing Cancer Therapeutics, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Eun Kyung Choi
- Institute for Innovative Cancer Research, University of Ulsan College of Medicine, Seoul, Republic of Korea; Center for Advancing Cancer Therapeutics, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Radiation Oncology, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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16
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Kolodziej M, Goetz C, Di Fazio P, Montalbano R, Ocker M, Strik H, Quint K. Roscovitine has anti-proliferative and pro-apoptotic effects on glioblastoma cell lines: A pilot study. Oncol Rep 2015; 34:1549-56. [PMID: 26151768 DOI: 10.3892/or.2015.4105] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/03/2015] [Indexed: 02/07/2023] Open
Abstract
Purine analogue roscovitine, a cyclin-dependent kinase (CDK) inhibitor, has shown strong anti-proliferative and pro-apoptotic effects in solid and hematologic cancers such as non small-cell lung cancer and lymphomas. It targets CDK2, 7 and 9 preferentially, which are also overexpressed in glioblastoma. Τherefore, the biological effects of roscovitine in glioblastoma cell lines were investigated. Glioblastoma A172 and G28 cell lines were incubated with serial concentrations of roscovitine for 24-120 h. Proliferation was measured using the xCELLigence Real-Time Cell Analyzer, an impedance‑based cell viability system. Cell cycle distribution was assessed by flow cytometry and gene expression was quantified by quantitative RT-PCR and western blot analysis. Roscovitine exhibited a clear dose-dependent anti‑proliferative and pro‑apoptotic effect in the A172 cell line, while G28 cells showed a anti-proliferative effect only at 100 µM. The results of the flow cytometric (FACS) analysis revealed a dose-dependent increase of the G2/M and sub-G1 fractions in A172 cells, while G28 cells responded with an elevated sub-G1 fraction only at the highest concentration. Roscovitine led to a dose‑dependent decrease of transcripts of p53, CDK 7 and cyclins A and E and an increase of >4-fold of p21 in A172 cells. In G28 cells, a dose‑dependent induction of CDK2, p21 and cyclin D was observed between 10 and 50 µM roscovitine after 72 h, however, at the highest concentration of 100 µM, all investigated genes were downregulated. Roscovitine exerted clear dose-dependent anti-proliferative and pro-apoptotic effects in A172 cells and less distinct effects on G28 cells. In A172 cells, roscovitine led to G2/M arrest and induced apoptosis, an effect accompanied by induced p21 and a reduced expression of CDK2, 7 and 9 and cyclins A and E. These effects requre further studies on a larger scale to confirm whether roscovitine can be used as a therapeutic agent against glioblastoma.
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Affiliation(s)
- M Kolodziej
- Department of Neurosurgery, University Hospital Giessen, Giessen, Germany
| | - C Goetz
- Institute for Surgical Research, University of Marburg, Marburg, Germany
| | - P Di Fazio
- Institute for Surgical Research, University of Marburg, Marburg, Germany
| | - R Montalbano
- Institute for Surgical Research, University of Marburg, Marburg, Germany
| | - M Ocker
- Institute for Surgical Research, University of Marburg, Marburg, Germany
| | - H Strik
- Department of Neurology, Thoracic and Vascular Surgery, University Hospital Marburg, Marburg, Germany
| | - K Quint
- Institute for Surgical Research, University of Marburg, Marburg, Germany
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17
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Srivastava R, Ahn SH. Modifications of RNA polymerase II CTD: Connections to the histone code and cellular function. Biotechnol Adv 2015; 33:856-72. [PMID: 26241863 DOI: 10.1016/j.biotechadv.2015.07.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 07/08/2015] [Accepted: 07/28/2015] [Indexed: 12/24/2022]
Abstract
At the onset of transcription, many protein machineries interpret the cellular signals that regulate gene expression. These complex signals are mostly transmitted to the indispensable primary proteins involved in transcription, RNA polymerase II (RNAPII) and histones. RNAPII and histones are so well coordinated in this cellular function that each cellular signal is precisely allocated to specific machinery depending on the stage of transcription. The carboxy-terminal domain (CTD) of RNAPII in eukaryotes undergoes extensive posttranslational modification, called the 'CTD code', that is indispensable for coupling transcription with many cellular processes, including mRNA processing. The posttranslational modification of histones, known as the 'histone code', is also critical for gene transcription through the reversible and dynamic remodeling of chromatin structure. Notably, the histone code is closely linked with the CTD code, and their combinatorial effects enable the delicate regulation of gene transcription. This review elucidates recent findings regarding the CTD modifications of RNAPII and their coordination with the histone code, providing integrative pathways for the fine-tuned regulation of gene expression and cellular function.
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Affiliation(s)
- Rakesh Srivastava
- Division of Molecular and Life Sciences, College of Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - Seong Hoon Ahn
- Division of Molecular and Life Sciences, College of Science and Technology, Hanyang University, Ansan, Republic of Korea.
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18
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Ibulocydine sensitizes human cancers to radiotherapy by induction of mitochondria-mediated apoptosis. Radiother Oncol 2014; 112:295-301. [PMID: 25082098 DOI: 10.1016/j.radonc.2014.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 06/23/2014] [Accepted: 07/10/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND PURPOSE Ibulocydine (IB), a novel prodrug of CDK inhibitor, has been reported to have anti-cancer effect in human hepatoma cells. In order to address its feasibility as a radiosensitizer to improve radiotherapeutic efficacy for human cancers, this study was designed. MATERIAL AND METHODS Human cancer cells of lung and colon were treated with IB and/or radiotherapy (RT). The cellular effects were assessed by CCK-8, clonogenic, flow cytometric, and western blotting assays. In vivo radiotherapeutic efficacy was evaluated using the xenograft mouse model. RESULTS Combined treatment of IB and RT significantly reduced viability and survival fraction of the cells. Apoptotic cell death accompanied with activation of caspases, decrease in Bcl-2/Bax expression, loss of mitochondrial membrane potential (MMP) leading to release of cytochrome c into cytosol was observed. Recovery of Bcl-2 expression level by introducing Bcl-2 expressing plasmid DNA compromised the loss of MMP and apoptosis induced by IB and RT. In vivo therapeutic efficacy of combined treatment was verified in the xenograft mouse model, in which tumor growth was markedly delayed by RT with IB. CONCLUSIONS IB demonstrated the property of sensitizing human cancer cells to RT by induction of mitochondria-mediated apoptosis, suggesting that IB deserves to be applied for chemoradiotherapy.
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19
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Xie G, Tang H, Wu S, Chen J, Liu J, Liao C. The cyclin-dependent kinase inhibitor SNS-032 induces apoptosis in breast cancer cells via depletion of Mcl-1 and X-linked inhibitor of apoptosis protein and displays antitumor activity in vivo. Int J Oncol 2014; 45:804-12. [PMID: 24865236 DOI: 10.3892/ijo.2014.2467] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/08/2014] [Indexed: 11/06/2022] Open
Abstract
Inhibitors of cyclin-dependent kinases (Cdks) have been reported to have activities in many types of cancer cells by inhibiting Cdk7 and Cdk9, which control transcription. SNS-032 is a potent and selective inhibitor of Cdk2, Cdk7 and Cdk9 and has emerged in clinical trials. Here, we examined the viability of MCF-7 and MDA-MB-435 breast cancer cells in the presence of SNS-032 and observed a dose-dependent inhibition of cellular proliferation in both cell lines. SNS-032 had a direct apoptosis-inducing effect through both the extrinsic and intrinsic apoptotic pathways in breast cancer cells as shown by a dose-dependent increase in Annexin V-positive cells and terminal deoxynucleotidyl transferase-mediated dUTP nick?end labeling (TUNEL)-positive cells, as well as activation of caspase-8, -9 and poly(ADP-ribose) polymerase (PARP). At the molecular level, SNS-032 induced a marked dephosphorylation of serine 2 and 5 of RNA polymerase (RNA Pol) II and blocked RNA synthesis. Consistent with the inherently rapid turnover rates of their transcripts and proteins, the anti-apoptotic proteins Mcl-1 and X-linked inhibitor of apoptosis protein (XIAP) were rapidly reduced on exposure to SNS-032. Our results also indicated that SNS-032 suppressed the growth of breast cancer xenografts in mice. These data demonstrate that the use of SNS-032 may be a rational and novel therapeutic strategy for human breast cancer and warrants further clinical investigation.
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Affiliation(s)
- Gui'e Xie
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, P.R. China
| | - Hongping Tang
- Department of Pathology, Shenzhen Maternity and Child Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, P.R. China
| | - Shaoqing Wu
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, P.R. China
| | - Jingsong Chen
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, P.R. China
| | - Jiangwen Liu
- College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, P.R. China
| | - Can Liao
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, P.R. China
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Villicaña C, Cruz G, Zurita M. The basal transcription machinery as a target for cancer therapy. Cancer Cell Int 2014; 14:18. [PMID: 24576043 PMCID: PMC3942515 DOI: 10.1186/1475-2867-14-18] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 02/21/2014] [Indexed: 01/11/2023] Open
Abstract
General transcription is required for the growth and survival of all living cells. However, tumor cells require extraordinary levels of transcription, including the transcription of ribosomal RNA genes by RNA polymerase I (RNPI) and mRNA by RNA polymerase II (RNPII). In fact, cancer cells have mutations that directly enhance transcription and are frequently required for cancer transformation. For example, the recent discovery that MYC enhances the transcription of the majority genes in the genome correlates with the fact that several transcription interfering drugs preferentially kill cancer cells. In recent years, advances in the mechanistic studies of the basal transcription machinery and the discovery of drugs that interfere with multiple components of transcription are being used to combat cancer. For example, drugs such as triptolide that targets the general transcription factors TFIIH and JQ1 to inhibit BRD4 are administered to target the high proliferative rate of cancer cells. Given the importance of finding new strategies to preferentially sensitize tumor cells, this review primarily focuses on several transcription inhibitory drugs to demonstrate that the basal transcription machinery constitutes a potential target for the design of novel cancer drugs. We highlight the drugs’ mechanisms for interfering with tumor cell survival, their importance in cancer treatment and the challenges of clinical application.
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Affiliation(s)
| | | | - Mario Zurita
- Departament of Developmental Genetics, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Mexico, Mexico.
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21
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Kim YJ, Kwon SH, Bae IH, Kim BM. Selectivity between N-1 and N-7 nucleosides: regioselective synthesis of BMK-Y101, a potent cdk7 and 9 inhibitor. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Increased α-tubulin1b expression indicates poor prognosis and resistance to chemotherapy in hepatocellular carcinoma. Dig Dis Sci 2013; 58:2713-20. [PMID: 23625295 DOI: 10.1007/s10620-013-2692-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 04/13/2013] [Indexed: 12/09/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the leading causes of cancer deaths worldwide. It is important to understand molecular mechanisms of HCC progression and to develop clinically useful biomarkers for the disease. AIM We aimed to investigate the possible involvement of α-tubulin1b (TUBA1B) in HCC pathology. METHODS Tissue specimens were obtained from 114 HCC patients during hepatectomy. Immunohistochemistry and western blot analysis were used to detect TUBA1B expression in HCC tissues and cell lines. TUBA1B was knocked down in HCC cells by siRNA transfection. CCK-8 assay and flow cytometry were applied to determine cell proliferation and cell cycle progression, respectively. The efficacy of paclitaxel chemotherapy was evaluated by plate colony formation assay. RESULTS TUBA1B was higher expressed in HCC tumor tissues than in adjacent nontumor tissues. TUBA1B and Ki-67 expressions were positively related to each other, and both their expressions were significantly associated with histological grade of HCC patients. Univariate and multivariate survival analyses revealed that TUBA1B was a significant predictor for overall survival of HCC patients. TUBA1B expression was increased in HCC cells during the G1- to S-phase transition. TUBA1B knockout in HCC cells inhibited cell proliferation, and attenuated resistance to paclitaxel. CONCLUSIONS Our results indicated that TUBA1B expression was upregulated in HCC tumor tissues and proliferating HCC cells, and an increased TUBA1B expression was associated with poor overall survival and resistance to paclitaxel of HCC patients.
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23
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Marzo I, Naval J. Antimitotic drugs in cancer chemotherapy: promises and pitfalls. Biochem Pharmacol 2013; 86:703-10. [PMID: 23886991 DOI: 10.1016/j.bcp.2013.07.010] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/11/2013] [Accepted: 07/11/2013] [Indexed: 11/19/2022]
Abstract
Cancer cells usually display higher proliferation rates than normal cells. Some currently used antitumor drugs, such as vinca alkaloids and taxanes, act by targeting microtubules and inhibiting mitosis. In the last years, different mitotic regulators have been proposed as drug target candidates for antitumor therapies. In particular, inhibitors of Cdks, Chks, Aurora kinase and Polo-like kinase have been synthesized and evaluated in vitro and in animal models and some of them have reached clinical trials. However, to date, none of these inhibitors has been still approved for use in chemotherapy regimes. We will discuss here the most recent preclinical information on those new antimitotic drugs, as well as the possible molecular bases underlying their lack of clinical efficiency. Also, advances in the identification of other mitosis-related targets will be also summarized.
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Affiliation(s)
- Isabel Marzo
- Departamento de Bioquimica y Biologia Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, Spain.
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