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Pierre HC, Amrine CSM, Doyle MG, Salvi A, Raja HA, Chekan JR, Huntsman AC, Fuchs JR, Liu K, Burdette JE, Pearce CJ, Oberlies NH. Verticillins: fungal epipolythiodioxopiperazine alkaloids with chemotherapeutic potential. Nat Prod Rep 2024. [PMID: 38629495 DOI: 10.1039/d3np00068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Covering: 1970 through June of 2023Verticillins are epipolythiodioxopiperazine (ETP) alkaloids, many of which possess potent, nanomolar-level cytotoxicity against a variety of cancer cell lines. Over the last decade, their in vivo activity and mode of action have been explored in detail. Notably, recent studies have indicated that these compounds may be selective inhibitors of histone methyltransferases (HMTases) that alter the epigenome and modify targets that play a crucial role in apoptosis, altering immune cell recognition, and generating reactive oxygen species. Verticillin A (1) was the first of 27 analogues reported from fungal cultures since 1970. Subsequent genome sequencing identified the biosynthetic gene cluster responsible for producing verticillins, allowing a putative pathway to be proposed. Further, molecular sequencing played a pivotal role in clarifying the taxonomic characterization of verticillin-producing fungi, suggesting that most producing strains belong to the genus Clonostachys (i.e., Bionectria), Bionectriaceae. Recent studies have explored the total synthesis of these molecules and the generation of analogues via both semisynthetic and precursor-directed biosynthetic approaches. In addition, nanoparticles have been used to deliver these molecules, which, like many natural products, possess challenging solubility profiles. This review summarizes over 50 years of chemical and biological research on this class of fungal metabolites and offers insights and suggestions on future opportunities to push these compounds into pre-clinical and clinical development.
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Affiliation(s)
- Herma C Pierre
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
| | - Chiraz Soumia M Amrine
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
- Department of Physical and Earth Sciences. Arkansas Tech University, 1701 N. Boulder Ave., Russellville, Arkansas 72801, USA
| | - Michael G Doyle
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
| | - Amrita Salvi
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 900 S. Ashland Ave (M/C 870), Chicago, Illinois 60607, USA
| | - Huzefa A Raja
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
| | - Jonathan R Chekan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
| | - Andrew C Huntsman
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Ohio State University, 500 W. 12th Ave., Columbus, Ohio 43210, USA
| | - James R Fuchs
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Ohio State University, 500 W. 12th Ave., Columbus, Ohio 43210, USA
| | - Kebin Liu
- Department of Biochemistry and Molecular Biology and the Georgia Cancer Center, Medical College of Georgia, Augusta, GA 30912, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA 30904, USA
| | - Joanna E Burdette
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 900 S. Ashland Ave (M/C 870), Chicago, Illinois 60607, USA
| | | | - Nicholas H Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
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Rehman A, Huang Y, Wan H. Evolving Mechanisms in the Pathophysiology of Pemphigus Vulgaris: A Review Emphasizing the Role of Desmoglein 3 in Regulating p53 and the Yes-Associated Protein. Life (Basel) 2021; 11:life11070621. [PMID: 34206820 PMCID: PMC8303937 DOI: 10.3390/life11070621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 01/28/2023] Open
Abstract
The immunobullous condition Pemphigus Vulgaris (PV) is caused by autoantibodies targeting the adhesion proteins of desmosomes, leading to blistering in the skin and mucosal membrane. There is still no cure to the disease apart from the use of corticosteroids and immunosuppressive agents. Despite numerous investigations, the pathological mechanisms of PV are still incompletely understood, though the etiology is thought to be multifactorial. Thus, further understanding of the molecular basis underlying this disease process is vital to develop targeted therapies. Ample studies have highlighted the role of Desmoglein-3 (DSG3) in the initiation of disease as DSG3 serves as a primary target of PV autoantibodies. DSG3 is a pivotal player in mediating outside-in signaling involved in cell junction remodeling, cell proliferation, differentiation, migration or apoptosis, thus validating its biological function in tissue integrity and homeostasis beyond desmosome adhesion. Recent studies have uncovered new activities of DSG3 in regulating p53 and the yes-associated protein (YAP), with the evidence of dysregulation of these pathways demonstrated in PV. The purpose of this review is to summarize the earlier and recent advances highlighting our recent findings related to PV pathogenesis that may pave the way for future research to develop novel specific therapies in curing this disease.
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Affiliation(s)
- Ambreen Rehman
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (A.R.); (Y.H.)
- Department of Oral Diagnosis and Medicine, Dr Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Yunying Huang
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (A.R.); (Y.H.)
| | - Hong Wan
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (A.R.); (Y.H.)
- Correspondence:
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Zou S, Zou P, Wang Y, Dong R, Wang J, Li N, Wang T, Zhou T, Chen Z, Zhang Y, Chen M, Zhou C, Zhang T, Luo L. ERp29 inhibition attenuates TCA toxicity via affecting p38/p53- dependent pathway in human trophoblast HTR-8/SVeno cells. Arch Biochem Biophys 2019; 676:108125. [PMID: 31586554 DOI: 10.1016/j.abb.2019.108125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 12/20/2022]
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a liver disorder occurred in pregnant women, and the mechanism for such disease is still unclear. The bioinformatics analysis of our previous study has revealed the abnormal expression of endoplasmic reticulum protein 29 (ERp29) in placental tissue of ICP patients. In this study, the function of ERp29 was further explored using in vitro model of ICP. The results showed that up-regulation of ERp29 occurred in TCA (taurocholic acid)-treated human trophoblast HTR-8/SVeno cells, and ERp29 inhibition reversed TCA toxicity via attenuating G2/M arrest and cell apoptosis. Mechanical study revealed ERp29 inhibition suppressed phosphorylation and kinase activity of p38, thus subsequently affecting expression and phosphorylation of p53 (ser18) as well as the transcriptional activity of p53. The conduction of this study might confirm the important role of ERp29 in ICP and which would be helpful for the development of target therapeutic method for ICP.
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Affiliation(s)
- Shaohan Zou
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, 310000, Zhejiang Province, China
| | - Ping Zou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Yao Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Ruirui Dong
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Jing Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Na Li
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Tiejun Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Tao Zhou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Zhong Chen
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Yan Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China
| | - Conghua Zhou
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu Province, China
| | - Ting Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China.
| | - Liang Luo
- The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China.
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Khole S, Mittal S, Jagadish N, Ghosh D, Gadgil V, Sinkar V, Ghaskadbi S. Andrographolide enhances redox status of liver cells by regulating microRNA expression. Free Radic Biol Med 2019; 130:397-407. [PMID: 30414976 DOI: 10.1016/j.freeradbiomed.2018.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/03/2018] [Accepted: 11/04/2018] [Indexed: 12/21/2022]
Abstract
Andrographis paniculata Nees and its principal compound andrographolide are well known for exerting beneficial effects by modulating signaling pathways in different biological systems. Our earlier studies have demonstrated the ability of andrographolide as well as andrographolide enriched extracts to activate Nrf2/HO-1 pathway through adenosine A2a receptor. Present study investigated ability of andrographolide to regulate Nrf2 induced antioxidant defense systems by miRNAs using HepG2 cells. Andrographolide strongly induced Nrf2 which in turn modulated enzymes of glutathione and thioredoxin antioxidant systems. It also regulated crucial transcription factors viz. hepatocyte nuclear factor alpha (HNF4A) and tumor suppressor protein 53 (p53). Downregulation of HNF4A by andrographolide led to decrease in miRNAs regulating Heme oxygenase-1 (miR-377) and glutathione cysteine ligase (miR-433). Upregulation of p53 on the other hand led to increase in miRNAs regulating thioredoxin interacting protein (miR-17, miR-224) and glutathione peroxidase (miR-181a). Involvement of p53 and HNF4A in modulation of these miRNAs was confirmed by chromatin immunoprecipitation assay. Overall, the work reveals that andrographolide through modulation of p53 and HNF4A, regulates miRNAs leading to upregulation of HO-1, glutathione and thioredoxin systems. Andrographolide thus, can play a beneficial role in modulating antioxidant defense in oxidative stress induced diseases such as diabetes, ageing etc.
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Affiliation(s)
- Swati Khole
- Department of Zoology, Savitribai Phule Pune University (SPPU), Ganeshkhind, Pune 411007, Maharashtra, India
| | - Smriti Mittal
- Department of Zoology, Savitribai Phule Pune University (SPPU), Ganeshkhind, Pune 411007, Maharashtra, India; Department of Biotechnology, Savitribai Phule Pune University (SPPU), Ganeshkhind, Pune 411007, Maharashatra, India
| | - Nidhi Jagadish
- Strategic Science Group, Naturals and Traditional Medicine, Unilever R&D Bangalore, 64, Main Road, Whitefield, Bangalore 560066, Karnataka, India
| | - Debjani Ghosh
- Strategic Science Group, Naturals and Traditional Medicine, Unilever R&D Bangalore, 64, Main Road, Whitefield, Bangalore 560066, Karnataka, India
| | - Vijay Gadgil
- Strategic Science Group, Naturals and Traditional Medicine, Unilever R&D Bangalore, 64, Main Road, Whitefield, Bangalore 560066, Karnataka, India
| | - Vilas Sinkar
- Strategic Science Group, Naturals and Traditional Medicine, Unilever R&D Bangalore, 64, Main Road, Whitefield, Bangalore 560066, Karnataka, India
| | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University (SPPU), Ganeshkhind, Pune 411007, Maharashtra, India.
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Marine-Derived Penicillium Species as Producers of Cytotoxic Metabolites. Mar Drugs 2017; 15:md15100329. [PMID: 29064452 PMCID: PMC5666435 DOI: 10.3390/md15100329] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/30/2017] [Accepted: 10/09/2017] [Indexed: 12/16/2022] Open
Abstract
Since the discovery of penicillin, Penicillium has become one of the most attractive fungal genera for the production of bioactive molecules. Marine-derived Penicillium has provided numerous excellent pharmaceutical leads over the past decades. In this review, we focused on the cytotoxic metabolites * (* Cytotoxic potency was referred to five different levels in this review, extraordinary (IC50/LD50: <1 μM or 0.5 μg/mL); significant (IC50/LD50: 1~10 μM or 0.5~5 μg/mL); moderate (IC50/LD50: 10~30 μM or 5~15 μg/mL); mild (IC50/LD50: 30~50 μM or 15~25 μg/mL); weak (IC50/LD50: 50~100 μM or 25~50 μg/mL). The comparative potencies of positive controls were referred when they were available). produced by marine-derived Penicillium species, and on their cytotoxicity mechanisms, biosyntheses, and chemical syntheses.
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Wang J, Zhu X, Kolli S, Wang H, Pearce CJ, Oberlies NH, Phelps MA. Plasma pharmacokinetics and bioavailability of verticillin A following different routes of administration in mice using liquid chromatography tandem mass spectrometry. J Pharm Biomed Anal 2017; 139:187-192. [PMID: 28284083 DOI: 10.1016/j.jpba.2017.02.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/22/2017] [Accepted: 02/28/2017] [Indexed: 02/06/2023]
Abstract
Verticillin A is a natural product isolated from fungal cultures and has displayed potent antibiotic, antiviral, nematocidal, and anticancer properties in vitro. While in vivo studies have been limited due to sparse supply, the in vivo efficacy data that does exist demonstrates potent anti-tumor activity in murine cancer models. The current study aims to investigate the pharmacokinetics and bioavailability of verticillin A in mice to provide guidance for further efficacy assessment in mouse models. A sensitive and specific liquid chromatography-tandem mass spectrometry method was developed and validated for the quantification of verticillin A in mouse plasma. Sample preparation was accomplished through protein precipitation, and chromatographic separation was achieved on an Agilent Zorbax Extend C18 column with a security guard cartridge C8 using a binary gradient with mobile phase A (water/0.1% formic acid) and B (ACN/0.1% formic acid) at a flow rate of 400μl/min. Elution of verticillin A and internal standard, hesperetin, occurred at 4.87 and 2.06min, respectively. The total chromatographic run time was 8min, and the assay was linear in the concentration range of 1-1000nM. The within- and between day precisions and accuracy were in the range of 2.58-8.71 and 90-105%, respectively. The assay was applied to determine plasma drug concentration in a mouse pharmacokinetic study. It was found that intraperitoneal dosing of 3mg/kg resulted in high systemic exposure and achieved Cmax of 110nM with plasma concentrations sustained above 10nM for the 24-h duration of the study. Intravenous and oral dosing achieved observed Cmax of 73nM and 9nM, respectively. Oral dosing resulted in an approximate 9% bioavailability. Comparing with previously published in vitro studies that demonstrated verticillin A is active in the 20nM to 130nM range, the pharmacokinetic data demonstrate similar levels are achieved in mouse plasma via intravenous or intraperitoneal dosing routes.
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Affiliation(s)
- Jiang Wang
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Xiaohua Zhu
- College of Pharmacy, The Ohio State University, Columbus, OH, United States
| | - Shamala Kolli
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Hongyan Wang
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Cedric J Pearce
- Mycosynthetix, Inc., 505 Meadowlands Dr., Suite 103, Hillsborough, NC 27278, United States
| | - Nicholas H Oberlies
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, NC 27402, United States
| | - Mitch A Phelps
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States; College of Pharmacy, The Ohio State University, Columbus, OH, United States.
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7
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Enhanced dereplication of fungal cultures via use of mass defect filtering. J Antibiot (Tokyo) 2017; 70:553-561. [PMID: 28074050 PMCID: PMC5407915 DOI: 10.1038/ja.2016.145] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/04/2016] [Indexed: 11/20/2022]
Abstract
Effective and rapid dereplication is a hallmark of present-day drug discovery from natural sources. This project strove to both decrease the time and expand the structural diversity associated with dereplication methodologies. A 5 min liquid chromatographic run time employing heated electrospray ionization (HESI) was evaluated to determine whether it could be used as a faster alternative over the 10 min ESI method we reported previously. Results revealed that the 5 min method was as sensitive as the 10 min method and, obviously, was twice as fast. To facilitate dereplication, the retention times, UV absorption maxima, full-scan HRMS and MS/MS were cross-referenced with an in-house database of over 300 fungal secondary metabolites. However, this strategy was dependent upon the makeup of the screening in-house database. Thus, mass defect filtering (MDF) was explored as an additional targeted screening strategy to permit identification of structurally related components. The use of a dereplication platform incorporating the 5 min chromatographic method together with MDF facilitated rapid and effective identification of known compounds and detection of structurally related analogs in extracts of fungal cultures.
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8
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11'-Deoxyverticillin A (C42) promotes autophagy through K-Ras/GSK3 signaling pathway in HCT116 cells. Protein Cell 2015; 5:945-9. [PMID: 25261996 PMCID: PMC4259883 DOI: 10.1007/s13238-014-0099-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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9
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Cellular processes involved in human epidermal cells exposed to extremely low frequency electric fields. Cell Signal 2015; 27:889-98. [DOI: 10.1016/j.cellsig.2015.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 02/08/2015] [Indexed: 01/18/2023]
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10
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Liu L, Rezvani HR, Back JH, Hosseini M, Tang X, Zhu Y, Mahfouf W, Raad H, Raji G, Athar M, Kim AL, Bickers DR. Inhibition of p38 MAPK signaling augments skin tumorigenesis via NOX2 driven ROS generation. PLoS One 2014; 9:e97245. [PMID: 24824222 PMCID: PMC4019556 DOI: 10.1371/journal.pone.0097245] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 04/16/2014] [Indexed: 11/19/2022] Open
Abstract
p38 mitogen-activated protein kinases (MAPKs) respond to a wide range of extracellular stimuli. While the inhibition of p38 signaling is implicated in the impaired capacity to repair ultraviolet (UV)-induced DNA damage—a primary risk factor for human skin cancers—its mechanism of action in skin carcinogenesis remains unclear, as both anti-proliferative and survival functions have been previously described. In this study, we utilized cultured keratinocytes, murine tumorigenesis models, and human cutaneous squamous cell carcinoma (SCC) specimens to assess the effect of p38 in this regard. UV irradiation of normal human keratinocytes increased the expression of all four p38 isoforms (α/β/γ/δ); whereas irradiation of p53-deficient A431 keratinocytes derived from a human SCC selectively decreased p38α, without affecting other isoforms. p38α levels are decreased in the majority of human cutaneous SCCs assessed by tissue microarray, suggesting a tumor-suppressive effect of p38α in SCC pathogenesis. Genetic and pharmacological inhibition of p38α and in A431 cells increased cell proliferation, which was in turn associated with increases in NAPDH oxidase (NOX2) activity as well as intracellular reactive oxygen species (ROS). These changes led to enhanced invasiveness of A431 cells as assessed by the matrigel invasion assay. Chronic treatment of p53-/-/SKH-1 mice with the p38 inhibitor SB203580 accelerated UV-induced SCC carcinogenesis and increased the expression of NOX2. NOX2 knockdown suppressed the augmented growth of A431 xenografts treated with SB203580. These findings indicate that in the absence of p53, p38α deficiency drives SCC growth and progression that is associated with enhanced NOX2 expression and ROS formation.
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Affiliation(s)
- Liang Liu
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
| | - Hamid Reza Rezvani
- Biothérapies des maladies génétiques et cancers, Univ. de Bordeaux, Bordeaux, France
- INSERM, Biothérapies des maladies génétiques et cancers, Bordeaux, France
| | - Jung Ho Back
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
| | - Mohsen Hosseini
- Biothérapies des maladies génétiques et cancers, Univ. de Bordeaux, Bordeaux, France
- INSERM, Biothérapies des maladies génétiques et cancers, Bordeaux, France
| | - Xiuwei Tang
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
| | - Yucui Zhu
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
| | - Walid Mahfouf
- Biothérapies des maladies génétiques et cancers, Univ. de Bordeaux, Bordeaux, France
- INSERM, Biothérapies des maladies génétiques et cancers, Bordeaux, France
| | - Houssam Raad
- Biothérapies des maladies génétiques et cancers, Univ. de Bordeaux, Bordeaux, France
- INSERM, Biothérapies des maladies génétiques et cancers, Bordeaux, France
| | - Grace Raji
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
| | - Mohammad Athar
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Arianna L. Kim
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
- * E-mail: (AK); (DB)
| | - David R. Bickers
- Department of Dermatology, Columbia University Medical Center, New York, New York, United States of America
- * E-mail: (AK); (DB)
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11
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Pritchard AL, Hayward NK. Molecular pathways: mitogen-activated protein kinase pathway mutations and drug resistance. Clin Cancer Res 2013; 19:2301-9. [PMID: 23406774 DOI: 10.1158/1078-0432.ccr-12-0383] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Receptor tyrosine kinases are a diverse family of transmembrane proteins that can activate multiple pathways upon ligation of the receptor, one of which is the series of mitogen-activated protein kinase (MAPK) signaling cascades. The MAPK pathways play critical roles in a wide variety of cancer types, from hematologic malignancies to solid tumors. Aberrations include altered expression levels and activation states of pathway components, which can sometimes be attributable to mutations in individual members. The V600E mutation of BRAF was initially described in 2002 and has been found at particularly high frequency in melanoma and certain subtypes of colorectal cancer. In the relatively short time since this discovery, a family of drugs has been developed that specifically target this mutated BRAF isoform, which, after results from phase I/II and III clinical trials, was granted U.S. Food and Drug Administration approval in August 2011. Although these drugs produce clinically meaningful increases in progression-free and overall survival, due to acquired resistance they have not improved mortality rates. New drugs targeting other members of the MAPK pathways are in clinical trials or advanced stages of development. It is hoped that combination therapies of these new drugs in conjunction with BRAF inhibitors will counteract the mechanisms of resistance and provide cures. The clinical implementation of next-generation sequencing is leading to a greater understanding of the genetic architecture of tumors, along with acquired mechanisms of drug resistance, which will guide the development of tumor-specific inhibitors and combination therapies in the future.
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Affiliation(s)
- Antonia L Pritchard
- Oncogenomics Research Group, CBCRC Building, Queensland Institute of Medical Research, Herston, Brisbane, Queensland, Australia
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12
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Borthwick AD. 2,5-Diketopiperazines: synthesis, reactions, medicinal chemistry, and bioactive natural products. Chem Rev 2012; 112:3641-716. [PMID: 22575049 DOI: 10.1021/cr200398y] [Citation(s) in RCA: 604] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Kim CH, Bahn JH, Lee SH, Kim GY, Jun SI, Lee K, Baek SJ. Induction of cell growth arrest by atmospheric non-thermal plasma in colorectal cancer cells. J Biotechnol 2010; 150:530-8. [PMID: 20959125 DOI: 10.1016/j.jbiotec.2010.10.003] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 10/01/2010] [Accepted: 10/07/2010] [Indexed: 11/25/2022]
Abstract
Plasma is generated by ionizing neutral gas molecules, resulting in a mixture of energy particles, including electrons and ions. Recent progress in the understanding of non-thermal atmospheric plasma has led to applications in biomedicine. However, the exact molecular mechanisms involved in plasma-induced cell growth arrest are unclear. In this study, we investigated the feasibility of non-thermal atmospheric plasma treatment for cancer therapy and examined the mechanism by which plasma induces anti-proliferative properties and cell death in human colorectal cancer cells. Non-thermal atmospheric plasma induced cell growth arrest and induced apoptosis. In addition, plasma reduced cell migration and invasion activities. As a result, we found that plasma treatment to the cells increases β-catenin phosphorylation, suggesting that β-catenin degradation plays a role at least in part in plasma-induced anti-proliferative activity. Therefore, non-thermal atmospheric plasma constitutes a new biologic tool with the potential for therapeutic applications that modulate cell signaling and function.
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Affiliation(s)
- Chul-Ho Kim
- Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
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Zhang X, Chen W, Guillermo R, Chandrasekher G, Kaushik RS, Young A, Fahmy H, Dwivedi C. Alpha-santalol, a chemopreventive agent against skin cancer, causes G2/M cell cycle arrest in both p53-mutated human epidermoid carcinoma A431 cells and p53 wild-type human melanoma UACC-62 cells. BMC Res Notes 2010; 3:220. [PMID: 20682067 PMCID: PMC3161371 DOI: 10.1186/1756-0500-3-220] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Accepted: 08/03/2010] [Indexed: 12/12/2022] Open
Abstract
Background α-Santalol, an active component of sandalwood oil, has shown chemopreventive effects on skin cancer in different murine models. However, effects of α-santalol on cell cycle have not been studied. Thus, the objective of this study was to investigate effects of α-santalol on cell cycle progression in both p53 mutated human epidermoid carcinoma A431 cells and p53 wild-type human melanoma UACC-62 cells to elucidate the mechanism(s) of action. Methods MTT assay was used to determine cell viability in A431 cells and UACC-62; fluorescence-activated cell sorting (FACS) analysis of propidium iodide staining was used for determining cell cycle distribution in A431 cells and UACC-62 cells; immunoblotting was used for determining the expression of various proteins and protein complexes involved in the cell cycle progression; siRNA were used to knockdown of p21 or p53 in A431 and UACC-62 cells and immunofluorescence microscopy was used to investigate microtubules in UACC-62 cells. Results α-Santalol at 50-100 μM decreased cell viability from 24 h treatment and α-santalol at 50 μM-75 μM induced G2/M phase cell cycle arrest from 6 h treatment in both A431 and UACC-62 cells. α-Santalol altered expressions of cell cycle proteins such as cyclin A, cyclin B1, Cdc2, Cdc25c, p-Cdc25c and Cdk2. All of these proteins are critical for G2/M transition. α-Santalol treatment up-regulated the expression of p21 and suppressed expressions of mutated p53 in A431 cells; whereas, α-santalol treatment increased expressions of wild-type p53 in UACC-62 cells. Knockdown of p21 in A431 cells, knockdown of p21 and p53 in UACC-62 cells did not affect cell cycle arrest caused by α-santalol. Furthermore, α-santalol caused depolymerization of microtubules similar to vinblastine in UACC-62 cells. Conclusions This study for the first time identifies effects of α-santalol in G2/M phase arrest and describes detailed mechanisms of G2/M phase arrest by this agent, which might be contributing to its overall cancer preventive efficacy in various mouse skin cancer models.
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Affiliation(s)
- Xiaoying Zhang
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD 57007, USA.
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Kim JK, Shin EK, Park JH, Kim YH, Park JHY. Antitumor and antimetastatic effects of licochalcone A in mouse models. J Mol Med (Berl) 2010; 88:829-38. [PMID: 20383690 DOI: 10.1007/s00109-010-0625-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 03/24/2010] [Accepted: 03/25/2010] [Indexed: 12/19/2022]
Abstract
Licochalcone A (LicA), a major phenolic constituent of licorice, has antiproliferative and anti-inflammatory properties in human and murine cell lines. We previously showed that LicA down-regulates the expression of cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) via the modulation of nuclear factor-kappaB and activator protein-1 activation in cell culture. We therefore tested whether LicA inhibits carcinogenesis and metastasis in mouse models. To induce colon carcinogenesis, C57BL/6 mice were given a single intraperitoneal injection of azoxymethane (10 mg/kg body weight), followed by 1% dextran sulfate sodium in the drinking water. Additionally, we also assessed the effect of LicA on liver metastasis by intrasplenic injection of BALB/c mice with CT-26 cells. Feeding the mice with LicA (5, 15, and 30 mg/kg body weight) significantly reduced tumor formation as well as the number of cells expressing proliferating cell nuclear antigen, beta-catenin, COX-2, and iNOS in the colon. LicA also decreased colon levels of proinflammatory cytokines and chemokines. In addition, LicA significantly increases survival of animals and inhibited liver metastasis as well as the expression of matrix metalloproteinase-9 in the liver. These preclinical studies indicate that LicA has potent antitumor and antimetastatic activity, suggesting that LicA could increase efficacy and improve patient outcomes in colorectal cancer.
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Affiliation(s)
- Jin-Kyung Kim
- Center for Efficacy Assessment and Development of Functional Foods and Drugs, Hallym University, Chuncheon, South Korea.
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Feng Y, Wen J, Chang CCJ. p38 Mitogen-activated protein kinase and hematologic malignancies. Arch Pathol Lab Med 2009; 133:1850-6. [PMID: 19886722 DOI: 10.5858/133.11.1850] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2009] [Indexed: 11/06/2022]
Abstract
CONTEXT p38 mitogen-activated protein kinase (MAPK) signaling has been implicated in responses ranging from apoptosis to cell cycle, induction of expression of cytokine genes, and differentiation. This plethora of activators conveys the complexity of the p38 pathway. This complexity is further complicated by the observation that the downstream effects of p38 MAPK activation may be different depending on types of stimuli, cell types, and various p38 MAPK isoforms involved. OBJECTIVE This review focuses on the recent advancement of the p38 MAPK isoforms as well as the roles of p38 MAPK in hematologic malignancies. DATA SOURCES Review of pertinent published literature and work in our laboratory. CONCLUSIONS In some hematologic malignancies, activation of p38 plays a key role in promoting or inhibiting proliferation and also in increasing resistance to chemotherapeutic agents. The importance of different p38 isoforms in various cellular functions has been acknowledged recently. Further understanding of these isoforms will allow the design of more specific inhibitors to target particular isoforms to maximize the treatment effect and minimize the side effects for treating hematopoietic malignancies.
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Affiliation(s)
- Yongdong Feng
- Department of Pathology, The Methodist Hospital and The Methodist Hospital Research Institute, Houston, Texas, USA
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Abstract
The fungal metabolite (+)-11,11'-dideoxyverticillin A, a cytotoxic alkaloid isolated from a marine Penicillium sp., belongs to a fascinating family of densely functionalized, stereochemically complex, and intricate dimeric epidithiodiketopiperazine natural products. Although the dimeric epidithiodiketopiperazines have been known for nearly 4 decades, none has succumbed to total synthesis. We report a concise enantioselective total synthesis of (+)-11,11'-dideoxyverticillin A via a strategy inspired by our biosynthetic hypothesis for this alkaloid. Highly stereo- and chemoselective advanced-stage tetrahydroxylation and tetrathiolation reactions, as well as a mild strategy for the introduction of the epidithiodiketopiperazine core in the final step, were developed to address this highly sensitive substructure. Our rapid functionalization of the advanced molecular framework aims to mimic plausible biosynthetic steps and offers an effective strategy for the chemical synthesis of other members of this family of alkaloids.
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Affiliation(s)
- Justin Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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I. Dalko P, Menozzi C, Cossy J. Studies on Enol Carbonate Chemistry: Stereoselective Construction of Vicinal Quaternary Benzylic Centers in the Bis-oxindole Series. HETEROCYCLES 2007. [DOI: 10.3987/com-07-s(k)59] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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