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Dreval K, Lake RJ, Fan HY. Analyzing the Interaction of RBPJ with Mitotic Chromatin and Its Impact on Transcription Reactivation upon Mitotic Exit. Methods Mol Biol 2022; 2472:95-108. [PMID: 35674895 DOI: 10.1007/978-1-0716-2201-8_9] [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] [Indexed: 06/15/2023]
Abstract
The sequence-specific transcription factor RBPJ, also known as CSL (CBF1, Su(H), Lag1), is an evolutionarily conserved protein that mediates Notch signaling to guide cell fates. When cells enter mitosis, DNA is condensed and most transcription factors dissociate from chromatin; however, a few, select transcription factors, termed bookmarking factors, remain associated. These mitotic chromatin-bound factors are believed to play important roles in maintaining cell fates through cell division. RBPJ is one such factor that remains mitotic chromatin associated and therefore could function as a bookmarking factor. Here, we describe how to obtain highly purified mitotic cells from the mouse embryonal carcinoma cell line F9, perform chromatin immunoprecipitation with mitotic cells, and measure the first run of RNA synthesis upon mitotic exit. These methods serve as basis to understand the roles of mitotic bookmarking by RBPJ in propagating Notch signals through cell division.
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Affiliation(s)
- Kostiantyn Dreval
- The Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
- Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Science Center, Albuquerque, NM, USA
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Robert J Lake
- The Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
- Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Science Center, Albuquerque, NM, USA
| | - Hua-Ying Fan
- The Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA.
- Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Science Center, Albuquerque, NM, USA.
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Patni AP, Harishankar MK, Joseph JP, Sreeshma B, Jayaraj R, Devi A. Comprehending the crosstalk between Notch, Wnt and Hedgehog signaling pathways in oral squamous cell carcinoma - clinical implications. Cell Oncol (Dordr) 2021; 44:473-494. [PMID: 33704672 DOI: 10.1007/s13402-021-00591-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is a malignant oral cavity neoplasm that affects many people, especially in developing countries. Despite several advances that have been made in diagnosis and treatment, the morbidity and mortality rates due to OSCC remain high. Accumulating evidence indicates that aberrant activation of cellular signaling pathways, such as the Notch, Wnt and Hedgehog pathways, occurs during the development and metastasis of OSCC. In this review, we have articulated the roles of the Notch, Wnt and Hedgehog signaling pathways in OSCC and their crosstalk during tumor development and progression. We have also examined possible interactions and associations between these pathways and treatment regimens that could be employed to effectively tackle OSCC and/or prevent its recurrence. CONCLUSIONS Activation of the Notch signaling pathway upregulates the expression of several genes, including c-Myc, β-catenin, NF-κB and Shh. Associations between the Notch signaling pathway and other pathways have been shown to enhance OSCC tumor aggressiveness. Crosstalk between these pathways supports the maintenance of cancer stem cells (CSCs) and regulates OSCC cell motility. Thus, application of compounds that block these pathways may be a valid strategy to treat OSCC. Such compounds have already been employed in other types of cancer and could be repurposed for OSCC.
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Affiliation(s)
- Anjali P Patni
- Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kanchipuram, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - M K Harishankar
- Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kanchipuram, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Joel P Joseph
- Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kanchipuram, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Bhuvanadas Sreeshma
- Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kanchipuram, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Rama Jayaraj
- College of Human and Human Sciences, Charles Darwin University, Ellangowan Drive, Darwin, Northern Territory, 0909, Australia
| | - Arikketh Devi
- Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kanchipuram, Kattankulathur, Chennai, Tamil Nadu, 603203, India.
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Galbiati A, Zana A, Conti P. Covalent inhibitors of GAPDH: From unspecific warheads to selective compounds. Eur J Med Chem 2020; 207:112740. [PMID: 32898762 DOI: 10.1016/j.ejmech.2020.112740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/23/2020] [Accepted: 08/05/2020] [Indexed: 11/18/2022]
Abstract
Targeting glycolysis is an attractive approach for the treatment of a wide range of pathologies, such as various tumors and parasitic infections. Due to its pivotal role in the glycolysis, Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) represents a rate-limiting enzyme in those cells that mostly, or exclusively rely on this pathway for energy production. In this context, GAPDH inhibition can be a valuable approach for the development of anticancer and antiparasitic drugs. In addition to its glycolytic role, GAPDH possesses several moonlight functions, whose deregulation is involved in some pathological conditions. Covalent modification on different amino acids of GAPDH, in particular on cysteine residues, can lead to a modulation of the enzyme activity. The selectivity towards specific cysteine residues is essential to achieve a specific phenotypic effect. In this work we report an extensive overview of the latest advances on the numerous compounds able to inhibit GAPDH through the covalent binding to cysteine residues, ranging from endogenous metabolites and xenobiotics, which may serve as pharmacological tools to actual drug-like compounds with promising therapeutic perspectives. Furthermore, we focused on the potentialities of the different warheads, shedding light on the possibility to exploit a combination of a finely tuned electrophilic group with a well-designed recognition moiety. These findings can provide useful information for the rational design of novel covalent inhibitors of GAPDH, with the final goal to expand the current treatment options.
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Affiliation(s)
- Andrea Galbiati
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli 25, 20133, Milano, Italy.
| | - Aureliano Zana
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli 25, 20133, Milano, Italy
| | - Paola Conti
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli 25, 20133, Milano, Italy
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Lake RJ, Haynes MK, Dreval K, Bilkis R, Sklar LA, Fan HY. A Novel Flow Cytometric Assay to Identify Inhibitors of RBPJ-DNA Interactions. SLAS DISCOVERY 2020; 25:895-905. [PMID: 32567455 DOI: 10.1177/2472555220932552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Notch signaling is often involved in cancer cell initiation and proliferation. Aberrant Notch activation underlies more than 50% of T-cell acute lymphoblastic leukemia (T-ALL); accordingly, chemicals disrupting Notch signaling are of potential to treat Notch-dependent cancer. Here, we developed a flow cytometry-based high-throughput assay to identify compounds that disrupt the interactions of DNA and RBPJ, the major downstream effector of Notch signaling. From 1492 compounds, we identified 18 compounds that disrupt RBPJ-DNA interactions in a dose-dependent manner. Cell-based assays further revealed that auranofin downregulates Notch-dependent transcription and decreases RBPJ-chromatin interactions in cells. Most strikingly, T-ALL cells that depend on Notch signaling for proliferation are more sensitive to auranofin treatment, supporting the notion that auranofin downregulates Notch signaling by disrupting RBPJ-DNA interaction. These results validate the feasibility of our assay scheme to screen for additional Notch inhibitors and provide a rationale to further test the use of auranofin in treating Notch-dependent cancer.
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Affiliation(s)
- Robert J Lake
- Department of Internal Medicine, Division of Molecular Medicine, Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Mark K Haynes
- Department of Pathology, Program in Cancer Therapeutics, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA.,Center for Molecular Discovery, University of New Mexico Health Science Center, Albuquerque, NM, USA
| | - Kostiantyn Dreval
- Department of Internal Medicine, Division of Molecular Medicine, Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Rabeya Bilkis
- Department of Internal Medicine, Division of Molecular Medicine, Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Larry A Sklar
- Department of Pathology, Program in Cancer Therapeutics, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA.,Center for Molecular Discovery, University of New Mexico Health Science Center, Albuquerque, NM, USA
| | - Hua-Ying Fan
- Department of Internal Medicine, Division of Molecular Medicine, Program in Cellular and Molecular Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
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Wang YX, DU Y, Liu XF, Yang FX, Wu X, Tan L, Lu YH, Zhang JW, Zhou F, Wang GJ. A hepatoprotection study of Radix Bupleuri on acetaminophen-induced liver injury based on CYP450 inhibition. Chin J Nat Med 2020; 17:517-524. [PMID: 31514983 DOI: 10.1016/s1875-5364(19)30073-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Indexed: 01/23/2023]
Abstract
We investigated the potential hepatoprotective effect of Radix Bupleuri (RB) by inducing acute liver injury (ALI) in an animal model using acetaminophen (APAP) after pretreatment with RB aqueous extract for three consecutive days. Compared to those of the APAP group, the biochemical and histological results of the RB pretreatment group showed lower serumaspartate transaminase (AST) and alanine transaminase (ALT) levels as well as less liver damage. Pharmacokinetic study of the toxicity related marker acetaminophen-cysteine (APC) revealed a lower exposure level in rats, suggesting that RB alleviated APAP-induced liver damage by preventing glutathione (GSH) depletion. The results of cocktail approach showed significant inhibition of CYP2E1 and CYP3A activity. Further investigation revealed the increasing of CYP2E1 and CYP3A protein was significantly inhibited in pretreatment group, while no obvious effect on gene expression was found. Therefore, this study clearly demonstrates that RB exhibited significant protective action against APAP-induced acute live injury via pretreatment, and which is partly through inhibiting the increase of activity and translation of cytochrome P450 enzymes, rather than gene transcription.
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Affiliation(s)
- Yu-Xin Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Institute for Food and Drug Control, Nanjing 210019, China
| | - Yi DU
- Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xia-Fei Liu
- Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Fang-Xiu Yang
- Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xiao Wu
- Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Li Tan
- Jiangsu Institute for Food and Drug Control, Nanjing 210019, China
| | - Yi-Hong Lu
- Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China; Jiangsu Institute for Food and Drug Control, Nanjing 210019, China
| | - Jing-Wei Zhang
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Fang Zhou
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Guang-Ji Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China.
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Yuan B, Yang R, Ma Y, Zhou S, Zhang X, Liu Y. A systematic review of the active saikosaponins and extracts isolated from Radix Bupleuri and their applications. PHARMACEUTICAL BIOLOGY 2017; 55:620-635. [PMID: 27951737 PMCID: PMC6130612 DOI: 10.1080/13880209.2016.1262433] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/08/2016] [Accepted: 11/15/2016] [Indexed: 05/18/2023]
Abstract
CONTEXT Radix Bupleuri has been used in traditional Chinese medicine for over 2000 years with functions of relieving exterior syndrome, clearing heat, regulating liver-qi, and lifting yang-qi. More natural active compounds, especially saikosaponins, have been isolated from Radix Bupleuri, which possess various valuable pharmacological activities. OBJECTIVE To summarize the current knowledge on pharmacological activities, mechanisms and applications of extracts and saikosaponins isolated from Radix Bupleuri, and obtain new insights for further research and development of Radix Bupleuri. METHODS PubMed, Web of Science, Science Direct, Research Gate, Academic Journals and Google Scholar were used as information sources through the inclusion of the search terms 'Radix Bupleuri', 'Bupleurum', 'saikosaponins', 'Radix Bupleuri preparation', and their combinations, mainly from the year 2008 to 2016 without language restriction. Clinical preparations containing Radix Bupleuri were collected from official website of China Food and Drug Administration (CFDA). RESULTS AND CONCLUSION 296 papers were searched and 128 papers were reviewed. A broad spectrum of in vitro and in vivo research has proved that Radix Bupleuri extracts, saikosaponin a, saikosaponin d, saikosaponin c, and saikosaponin b2, exhibit evident anti-inflammatory, antitumor, antiviral, anti-allergic, immunoregulation, and neuroregulation activities mainly through NF-κB, MAPK or other pathways. 15 clinical preparations approved by CFDA remarkably broaden the application of Radix Bupleuri. The main side effect of Radix Bupleuri is liver damage when the dosage is excess, which indicates that the maximum tolerated dose is critical for clinical use of Radix Bupleuri extract and purified compounds.
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Affiliation(s)
- Bochuan Yuan
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Rui Yang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Yongsheng Ma
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Shan Zhou
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaodong Zhang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Ying Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
- CONTACT Ying LiuSchool of Chinese Pharmacy, Beijing University of Chinese Medicine, Wangjing Zhonghuan South Street, Chaoyang District, Beijing100102, China
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Zhao Y, Liu PY, Hsieh KY, Hsu PL, Goto M, Morris-Natschke SL, Harn HJ, Lee KH. Design, Synthesis and Structure-Activity Relationships of (±)-Isochaihulactone Derivatives. MEDCHEMCOMM 2017; 8:2040-2049. [PMID: 29391939 DOI: 10.1039/c7md00310b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Z-K8 (2), the racemic form of isochaihulactone (1), previously showed significant antitumor effects in A549 and LNCaP tumor-bearing mice. In the present study, 17 derivatives of 2, were designed, synthesized and evaluated for anti-proliferative activity against four human tumor cell lines. All new derivatives exhibited high potency against A549 and P-glycoprotein (P-gp)-overexpressing KBvin. One of our new derivative exhibited greater activity against three tested tumor cells (A549, KB, and KB-VIN) than 2, and induced cell cycle arrest in the G2/M phase. Moreover, SAR conclusions were first established for this series of compounds. Our study clearly identified a structural feature that should be retained for good activity and also a moiety that can tolerate various modifications and, thus, is ideal for further changes.
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Affiliation(s)
- Yu Zhao
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Po-Yen Liu
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Kan-Yen Hsieh
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Pei-Ling Hsu
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA
| | - Horng-Jyh Harn
- Department of Pathology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA.,Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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Tsai SF, Tao M, Ho LI, Chiou TW, Lin SZ, Su HL, Harn HJ. Isochaihulactone-induced DDIT3 causes ER stress-PERK independent apoptosis in glioblastoma multiforme cells. Oncotarget 2017; 8:4051-4061. [PMID: 27852055 PMCID: PMC5354812 DOI: 10.18632/oncotarget.13266] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 11/02/2016] [Indexed: 11/25/2022] Open
Abstract
The endoplasmic reticulum (ER) is a major site of cellular homeostasis regulation. Under the ER stress condition, Glioblastoma multiform (GBM) cells activate the unfolded protein response. In this study, we discovered isochaihulactone, a natural compound extracted from the Chinese traditional herb Nan-Chai-Hu, which can disrupt ER homeostasis in GBM cell lines. It can induce DNA damage inducible transcript 3 (DDIT3) expression which is independent of 78 kDa glucose-regulated protein (GRP78) and protein kinase RNA-like endoplasmic reticulum kinase (PERK) expression. Flow cytometry results revealed that isochaihulactone trigger the cell cycle arrest at G2/M phase and apoptosis in GBM cells. Isochaihulactone induced DDIT3 led to the expression of NAG-1. The in vivo study showed that isochaihulactone suppressed tumor growth, and DDIT3 and Caspase3 overexpressed in the xenograft model, which is consistent with the in vitro study. Overall, the data revealed that isochaihulactone disrupted ER homeostasis in cancer cells by increasing DDIT3 and NAG-1 expression. Our finding also provides a therapeutic strategy by using isochaihulactone for GBM treatment.
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Affiliation(s)
- Sheng-Feng Tsai
- 1 Department of Life Sciences, National Chung-Hsing University, Taichung, Taiwan
| | - Michael Tao
- 2 Department of Bioengineering, University of California, San Diego, La Jolla, California, USA
| | - Li-Ing Ho
- 3 Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tzyy-Wen Chiou
- 4 Department of Life Science, Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan
| | - Shinn-Zong Lin
- 5 Bioinnovation Center, Tzu Chi foundation, Department of Neurosurgery, Hualien Tzu Chi Hospital, Hualien, Taiwan
| | - Hong-Lin Su
- 1 Department of Life Sciences, National Chung-Hsing University, Taichung, Taiwan
| | - Horng-Jyh Harn
- 6 Bioinnovation Center, Tzu Chi Foundation, Department of Pathology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
- 7 Department of Pathology, China Medical University Hospital, Taichung, Taiwan
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Roles of NOTCH1 as a Therapeutic Target and a Biomarker for Lung Cancer: Controversies and Perspectives. DISEASE MARKERS 2015; 2015:520590. [PMID: 26491213 PMCID: PMC4600509 DOI: 10.1155/2015/520590] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/07/2015] [Accepted: 09/08/2015] [Indexed: 02/08/2023]
Abstract
Lung cancer is one of the most common types of human malignancies and the leading cause of cancer-related death. Patients with surgically resectable early stage lung cancer are more likely curable, but currently only a small population of patients can be diagnosed at such a stage, partly due to our incomplete understanding of the biology of lung cancer and the lack of diagnostic and prognostic biomarkers. Recent studies have shown that NOTCH1 is a critical regulator of human carcinogenesis and has been implicated in multiple steps of cancer development and progression. Herein, we review recent findings about the role of NOTCH1 in lung cancer and discuss its potential usefulness as both a therapeutic target and a biomarker for lung cancer.
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Liang YW, Chang CC, Hung CM, Chen TY, Huang TY, Hsu YC. Preclinical Activity of Simvastatin Induces Cell Cycle Arrest in G1 via Blockade of Cyclin D-Cdk4 Expression in Non-Small Cell Lung Cancer (NSCLC). Int J Mol Sci 2013; 14:5806-16. [PMID: 23481641 PMCID: PMC3634414 DOI: 10.3390/ijms14035806] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/17/2013] [Accepted: 01/17/2013] [Indexed: 11/16/2022] Open
Abstract
Lung cancer is the most common cause of cancer-related death. Nonetheless, a decrease in overall incidence and mortality has been observed in the last 30 years due to prevention strategies and improvements in the use of chemotherapeutic agents. In recent studies, Simvastatin (SIM) has demonstrated anti-tumor activity, as well as potent chemopreventive action. As an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG-CoA), SIM has been shown to stimulate apoptotic cell death. In this study, an MTT assay revealed the cytotoxic activity of SIM against human large cell lung cancer (Non-small cell lung cancer; NSCLC) cells (NCI-H460); however, induced apoptosis was not observed in NCI-H460 cells. Protein expression levels of cell cycle regulating proteins Cdk4, Cyclin D1, p16 and p27 were markedly altered by SIM. Collectively, our results indicate that SIM inhibits cell proliferation and arrests NCI-H460 cell cycle progression via inhibition of cyclin-dependent kinases and cyclins and the enhancement of CDK inhibitors p16 and p27. Our findings suggest that, in addition to the known effects on hypercholesterolemia therapy, SIM may also provide antitumor activity in established NSCLC.
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Affiliation(s)
- Yu-Wei Liang
- Department of Emergency Medicine, Chi-Shan Hospital, Department of Health, Executive Yuan, Kaohsiung 84274, Taiwan; E-Mail:
| | - Chi-Chang Chang
- Department of Obstetrics & Gynecology, E-Da Hospital, E-Da Hospital/I-Shou University, Kaohsiung 82445, Taiwan; E-Mail:
| | - Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; E-Mail:
| | - Tzu-Yu Chen
- Innovative Research Center of Medicine, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan; E-Mail:
- Department of Bioscience Technology, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan
| | - Tzuu-Yuan Huang
- Departments of Neurosurgery, Tainan Sin-Lau Hospital, Tainan 70142, Taiwan; E-Mail:
| | - Yi-Chiang Hsu
- Innovative Research Center of Medicine, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan; E-Mail:
- Graduate Institute of Medical Science, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan
- Author to whom correspondence should be addressed; E-Mail: or ; Tel.: +886-6-278-5123 (ext. 3011); Fax: +886-6-278-5663
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