1
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Krishnan M, Saraswathy S, Singh S, Saggu GK, Kalra N, Agrawala PK, Abraham KM, Das Toora B. Sulforaphane inhibits histone deacetylase causing cell cycle arrest and apoptosis in oral squamous carcinoma cells. Med J Armed Forces India 2024; 80:412-419. [PMID: 39071758 PMCID: PMC11280278 DOI: 10.1016/j.mjafi.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/30/2022] [Indexed: 11/24/2022] Open
Abstract
Background Biologic compounds have recently generated interest in cancer chemoprevention. Sulforaphane (SFN), an isothiocyanate from cruciferous vegetables, has profound epigenetic actions. Since epigenetic aetiology is crucial for oral cancer, this study evaluated the role of SFN in oral cancer prevention. Methods Oral squamous cell carcinoma cells (UPCI-SCC-172) were treated with SFN in three concentrations: 10 μM, 20 μM and 30 μM for two time periods: 24 h and 48 h. MTT assay assessed cell proliferation. Histone deacetylase (HDAC) enzyme activity was colorimetrically estimated in the nuclear extracts. Flow cytometry determined cell cycle stages, reactive oxygen species (ROS) generation and mitochondrial membrane potential (MMP) changes. Extrinsic and intrinsic apoptotic pathways were evaluated from caspase enzyme assays. Results Cell proliferation and HDAC activity (44% in 24 h and 40% in 48 h) were significantly inhibited (p < 0.01). For 10 μM concentration, G2/M cell cycle arrest was found with a reduction in G1 phase cell population at 24 h and 48 h. Concentrations of 20 μM and 30 μM SFN presented cells in apoptosis marked by increased sub G1 cells at 48 h. Concentrations of 10 μM and 20 μM SFN showed a 1.3 to 2.8-fold increase in ROS generation at 24 h and 48 h. The concentration of 30 μM SFN showed a drop in ROS production, denoting cells already in apoptosis. Fall in MMP was also dose- and time-dependent. Caspase enzyme assays (p < 0.001) demonstrated activation of both extrinsic and intrinsic apoptotic pathways. Conclusion Inhibitory action of SFN on oral cancer cell proliferation and HDAC activity led to cell cycle arrest and apoptosis. These effects marked by increase in ROS, a decrease in MMP and activation of apoptotic pathways offer exciting therapeutic options.
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Affiliation(s)
- Manu Krishnan
- Commanding Officer & Classified Specialist (Orthodontics), Military Dental Centre, Ahmednagar, India
| | - Seema Saraswathy
- Faculty (Biochemistry), Army College of Medical Sciences (ACMS), Delhi Cantt, India
| | - Sanjana Singh
- Research Fellow (Dental Research & Implantology), INMAS, DRDO, Delhi, India
| | | | - Namita Kalra
- Technical Officer (Radiation Biosciences), INMAS, DRDO, Delhi, India
| | - Paban K. Agrawala
- Scientist `F' (Radiation Genetics & Epigenetics), INMAS, DRDO, Delhi, India
| | - Kurian Mathew Abraham
- Assistant Professor (Aquatic Biology & Fisheries), University of Kerala, Thiruvananthapuram, India
| | - Bishamber Das Toora
- Head (Biochemistry), Army College of Medical Sciences (ACMS), Delhi Cantt, India
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2
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Burcher JT, DeLiberto LK, Allen AM, Kilpatrick KL, Bishayee A. Bioactive phytocompounds for oral cancer prevention and treatment: A comprehensive and critical evaluation. Med Res Rev 2023; 43:2025-2085. [PMID: 37143373 DOI: 10.1002/med.21969] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 04/05/2023] [Accepted: 04/12/2023] [Indexed: 05/06/2023]
Abstract
The high incidence of oral cancer combined with excessive treatment cost underscores the need for novel oral cancer preventive and therapeutic options. The value of natural agents, including plant secondary metabolites (phytochemicals), in preventing carcinogenesis and representing expansive source of anticancer drugs have been established. While fragmentary research data are available on antioral cancer effects of phytochemicals, a comprehensive and critical evaluation of the potential of these agents for the prevention and intervention of human oral malignancies has not been conducted according to our knowledge. This study presents a complete and critical analysis of current preclinical and clinical results on the prevention and treatment of oral cancer using phytochemicals. Our in-depth analysis highlights anticancer effects of various phytochemicals, such as phenolics, terpenoids, alkaloids, and sulfur-containing compounds, against numerous oral cancer cells and/or in vivo oral cancer models by antiproliferative, proapoptotic, cell cycle-regulatory, antiinvasive, antiangiogenic, and antimetastatic effects. Bioactive phytochemicals exert their antineoplastic effects by modulating various signaling pathways, specifically involving the epidermal growth factor receptor, cytokine receptors, toll-like receptors, and tumor necrosis factor receptor and consequently alter the expression of downstream genes and proteins. Interestingly, phytochemicals demonstrate encouraging effects in clinical trials, such as reduction of oral lesion size, cell growth, pain score, and development of new lesions. While most phytochemicals displayed minimal toxicity, concerns with bioavailability may limit their clinical application. Future directions for research include more in-depth mechanistic in vivo studies, administration of phytochemicals using novel formulations, investigation of phytocompounds as adjuvants to conventional treatment, and randomized clinical trials.
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Affiliation(s)
- Jack T Burcher
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Lindsay K DeLiberto
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Andrea M Allen
- School of Dental Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Kaitlyn L Kilpatrick
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
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3
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Knapp K, Verchio V, Coburn-Flynn O, Li Y, Xiong Z, Morrison JC, Shersher DD, Spitz F, Chen X. Exploring cell competition for the prevention and therapy of esophageal squamous cell carcinoma. Biochem Pharmacol 2023; 214:115639. [PMID: 37290594 PMCID: PMC10528900 DOI: 10.1016/j.bcp.2023.115639] [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: 04/03/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is characterized by the development of cancer in the esophageal squamous epithelium through a step-by-step accumulation of genetic, epigenetic, and histopathological alterations. Recent studies have demonstrated that cancer-associated gene mutations exist in histologically normal or precancerous clones of the human esophageal epithelium. However, only a small proportion of such mutant clones will develop ESCC, and most ESCC patients develop only one cancer. This suggests that most of these mutant clones are kept in a histologically normal state by neighboring cells with higher competitive fitness. When some of the mutant cells evade cell competition, they become "super-competitors" and develop into clinical cancer. It is known that human ESCC is composed of a heterogeneous population of cancer cells that interact with and influence their environment and neighbors. During cancer therapy, these cancer cells not only respond to therapeutic agents but also compete with each other. Therefore, competition between ESCC cells within the same ESCC tumor is a constantly dynamic process. However, it remains challenging to fine-tune the competitive fitness of various clones for therapeutic benefits. In this review, we will explore the role of cell competition in carcinogenesis, cancer prevention, and therapy, using NRF2, NOTCH pathway, and TP53 as examples. We believe that cell competition is a research area with promising targets for clinical translation. Manipulating cell competition may help improve the prevention and therapy of ESCC.
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Affiliation(s)
- Kristen Knapp
- Department of Surgery, Cooper University Hospital, Camden, NJ 08103, USA
| | - Vincent Verchio
- Department of Surgery, Cooper University Hospital, Camden, NJ 08103, USA
| | | | - Yahui Li
- Coriell Institute for Medical Research, Camden, NJ 08103, USA
| | - Zhaohui Xiong
- Coriell Institute for Medical Research, Camden, NJ 08103, USA
| | - Jamin C Morrison
- MD Anderson Cancer Center at Cooper, Camden, NJ 08103, USA; Cooper Medical School of Rowan University, Camden, NJ 08103, USA
| | - David D Shersher
- Department of Surgery, Cooper University Hospital, Camden, NJ 08103, USA; MD Anderson Cancer Center at Cooper, Camden, NJ 08103, USA; Cooper Medical School of Rowan University, Camden, NJ 08103, USA
| | - Francis Spitz
- Department of Surgery, Cooper University Hospital, Camden, NJ 08103, USA; MD Anderson Cancer Center at Cooper, Camden, NJ 08103, USA; Cooper Medical School of Rowan University, Camden, NJ 08103, USA
| | - Xiaoxin Chen
- Department of Surgery, Cooper University Hospital, Camden, NJ 08103, USA; Coriell Institute for Medical Research, Camden, NJ 08103, USA; MD Anderson Cancer Center at Cooper, Camden, NJ 08103, USA; Cooper Medical School of Rowan University, Camden, NJ 08103, USA.
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4
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Zigmundo GCDO, Schuch LF, Schmidt TR, Silveira FM, Martins MAT, Carrard VC, Martins MD, Wagner VP. 4-nitroquinoline-1-oxide (4NQO) induced oral carcinogenesis: A systematic literature review. Pathol Res Pract 2022; 236:153970. [PMID: 35709549 DOI: 10.1016/j.prp.2022.153970] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/31/2022] [Accepted: 06/05/2022] [Indexed: 12/09/2022]
Abstract
OBJECTIVE Based on a critical review of published studies, we aimed to develop a good practice guide for using 4-nitroquinoline-1-oxide (4NQO) as an inducer of oral carcinogenesis in Wistar rats. DESIGN A systematic search was performed on Medline Ovid, PubMed, Embase, Web of Science, and Scopus databases. The SYRCLE's risk of bias tool was used to assess the quality of the studies. RESULTS Thirty-five articles met the selection criteria; 22 (62.9%) of them administered 4NQO systemically in drinking water, with a mean concentration of 30.2 ppm (SD±15.9) and during a mean period of 20.8 (SD±7.8) weeks. The other 13 (37.1%) studies performed topical applications of 4NQO painting the oral mucosa of the animals three times a week (100%) with a mean period of administration of 16.8 (SD±7.0) weeks. Different 4NQO concentrations used for other periods achieved significant tumor development. Most studies didn't perform quantitative clinical analysis, and the histopathological diagnosis/grading criteria varied considerably. CONCLUSIONS A poor description of solution care, adverse effects, and the number of losses were observed, and the reporting of these features needs to be improved. Suggestions to guide the development of future research are provided.
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Affiliation(s)
| | - Lauren Frenzel Schuch
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil
| | - Tuany Rafaeli Schmidt
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Felipe Martins Silveira
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo, Uruguay
| | | | - Vinicius Coelho Carrard
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil
| | - Vivian Petersen Wagner
- Academic Unit of Oral and Maxillofacial Medicine and Pathology, Department of Clinical Dentistry, University of Sheffield, Sheffield, UK.
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5
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Tumor Promoting Effects of Sulforaphane on Diethylnitrosamine-Induced Murine Hepatocarcinogenesis. Int J Mol Sci 2022; 23:ijms23105397. [PMID: 35628208 PMCID: PMC9141104 DOI: 10.3390/ijms23105397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (NRF2) is a key transcription factor involved in protection against initiation of carcinogenesis in normal cells. Notably, recent studies have demonstrated that aberrant activation of NRF2 accelerates the proliferation and progression of cancer cells. The differential effects of NRF2 on multi-stage carcinogenesis have raised a concern about the validity of NRF2 activators for chemoprevention. This prompted us to assess the effects of sulforaphane (SFN), a prototypic NRF2 activating chemopreventive phytochemical, on experimentally induced carcinogenesis. In the present study, SFN was daily injected intraperitoneally (25 mg/kg) for 3 months to male C57BL/6 mice at 6 months after single intraperitoneal administration of a hepatocarcinogen, diethylnitrosamine (DEN). The liver to body weight ratio, tumor growth, and the number and the size of hepatomas measured at 9 months after DEN administration were significantly higher in SFN-treated mice than those in vehicle-treated mice. Moreover, the expression of NRF2, its target protein NAD(P)H:quinone oxidoreductase 1, and the cell proliferation marker, proliferating cell nuclear antigen was further elevated in DEN plus SFN-treated mice. These results suggest that once hepatocarcinogenesis is initiated, SFN may stimulate tumor progression.
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6
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Yu X, Liu Y, Pan K, Sun P, Li J, Li L, Chen Q, Sun Z. Breast Cancer Susceptibility Gene 1 Regulates Oxidative Damage via Nuclear Factor Erythroid 2-related Factor 2 in Oral Cancer Cells. Arch Oral Biol 2022; 139:105447. [DOI: 10.1016/j.archoralbio.2022.105447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 04/09/2022] [Accepted: 04/23/2022] [Indexed: 11/29/2022]
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7
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Ding T, Zou J, Qi J, Dan H, Tang F, Zhao H, Chen Q. Mucoadhesive Nucleoside-Based Hydrogel Delays Oral Leukoplakia Canceration. J Dent Res 2022; 101:921-930. [PMID: 35360978 DOI: 10.1177/00220345221085192] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Some oral squamous cell carcinomas (OSCCs) originate from preexisting oral potentially malignant disorders (OPMDs). Oral leukoplakia (OLK) is the most common and typical OPMD in the clinic, so treatment for it is essential to reduce OSCC incidence. Local chemotherapy is an option other than surgery considering the superficial site of OLK. However, there are no standardized drugs applied to OLK, and traditionally used chemotherapeutic drugs revealed limited efficacy for lack of adhesion. Hence, there is a growing demand to prepare new agents that combine mucoadhesion with an anti-OLK effect. Here, an isoguanosine-tannic acid (isoG-TA) supramolecular hydrogel via dynamic borate esters was successfully fabricated based on isoG and TA. Previously reported guanosine-TA (G-TA) hydrogel was also explored for an anti-OLK effect. Both gels not only exhibited ideal adhesive properties but also integrated anti-OLK activities in one system. In vitro cell viability indicated that isoG and TA inhibited the proliferation of dysplastic oral keratinocytes (DOKs). The in vivo OLK model evidence revealed that both gels showed potential to prevent OLK canceration. In addition, the probable anti-DOK mechanisms of isoG and TA were investigated. The results indicated that isoG could bind to adenosine kinase (ADK) and then affected the mammalian target of rapamycin (mTOR) pathway to inhibit DOK proliferation. TA could significantly and continuously reduce reactive oxygen species (ROS) in DOKs through its antioxidant effect. ROS plays an important role in the progression of cell cycle. We proved that the low level of ROS may inhibit DOK proliferation by inducing G0/G1 arrest in the cell cycle. Altogether, this study innovatively fabricated an isoG-TA hydrogel with ideal adhesion, and both isoG and TA showed in vitro inhibition of DOKs. Moreover, both isoG-TA and G-TA hydrogels possessed potential in delaying the malignant transformation of OLK, and the G-TA hydrogel showed a better statistical effect, providing an effective strategy for controlling OLK.
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Affiliation(s)
- T Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
| | - J Zou
- West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China
| | - J Qi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
| | - H Dan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
| | - F Tang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, P. R. China
| | - H Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Q Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
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8
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Paiboonrungruang C, Simpson E, Xiong Z, Huang C, Li J, Li Y, Chen X. Development of targeted therapy of NRF2 high esophageal squamous cell carcinoma. Cell Signal 2021; 86:110105. [PMID: 34358647 PMCID: PMC8403639 DOI: 10.1016/j.cellsig.2021.110105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a deadly disease and one of the most aggressive cancers of the gastrointestinal tract. As a master transcription factor regulating the stress response, NRF2 is often mutated and becomes hyperactive, and thus causes chemo-radioresistance and poor survival in human ESCC. There is a great need to develop NRF2 inhibitors for targeted therapy of NRF2high ESCC. In this review, we mainly focus on three aspects, NRF2 inhibitors and their mechanisms of action, screening novel drug targets, and evaluation of NRF2 activity in the esophagus. A research strategy has been proposed to develop NRF2 inhibitors using human ESCC cells and mouse models.
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Affiliation(s)
- Chorlada Paiboonrungruang
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George Street, Durham, NC 27707, USA
| | - Emily Simpson
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George Street, Durham, NC 27707, USA
| | - Zhaohui Xiong
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George Street, Durham, NC 27707, USA
| | - Caizhi Huang
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27607, USA
| | - Jianying Li
- Euclados Bioinformatics Solutions, Cary, NC 27519, USA
| | - Yahui Li
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George Street, Durham, NC 27707, USA
| | - Xiaoxin Chen
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George Street, Durham, NC 27707, USA; Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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9
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Scuto M, Trovato Salinaro A, Caligiuri I, Ontario ML, Greco V, Sciuto N, Crea R, Calabrese EJ, Rizzolio F, Canzonieri V, Calabrese V. Redox modulation of vitagenes via plant polyphenols and vitamin D: Novel insights for chemoprevention and therapeutic interventions based on organoid technology. Mech Ageing Dev 2021; 199:111551. [PMID: 34358533 DOI: 10.1016/j.mad.2021.111551] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/19/2021] [Accepted: 08/01/2021] [Indexed: 12/29/2022]
Abstract
Polyphenols are chemopreventive through the induction of nuclear factor erythroid 2 related factor 2 (Nrf2)-mediated proteins and anti-inflammatory pathways. These pathways, encoding cytoprotective vitagenes, include heat shock proteins, such as heat shock protein 70 (Hsp70) and heme oxygenase-1 (HO-1), as well as glutathione redox system to protect against cancer initiation and progression. Phytochemicals exhibit biphasic dose responses on cancer cells, activating at low dose, signaling pathways resulting in upregulation of vitagenes, as in the case of the Nrf2 pathway upregulated by hydroxytyrosol (HT) or curcumin and NAD/NADH-sirtuin-1 activated by resveratrol. Here, the importance of vitagenes in redox stress response and autophagy mechanisms, as well as the potential use of dietary antioxidants in the prevention and treatment of multiple types of cancer are discussed. We also discuss the possible relationship between SARS-CoV-2, inflammation and cancer, exploiting innovative therapeutic approaches with HT-rich aqueous olive pulp extract (Hidrox®), a natural polyphenolic formulation, as well as the rationale of Vitamin D supplementation. Finally, we describe innovative approaches with organoids technology to study human carcinogenesis in preclinical models from basic cancer research to clinical practice, suggesting patient-derived organoids as an innovative tool to test drug toxicity and drive personalized therapy.
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Affiliation(s)
- Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy; Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Angela Trovato Salinaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy.
| | - Isabella Caligiuri
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Maria Laura Ontario
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy.
| | - Valentina Greco
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy.
| | - Nello Sciuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy.
| | - Roberto Crea
- Oliphenol LLC., 26225 Eden Landing Road, Suite C, Hayward, CA 94545, USA.
| | - Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA.
| | - Flavio Rizzolio
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; Department of Molecular Sciences and Nanosystems, Ca'Foscari University of Venice, 30123 Venezia, Italy.
| | - Vincenzo Canzonieri
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy.
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy.
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10
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Tan HH, Thomas NF, Inayat-Hussain SH, Chan KM. (E)-N-(2-(3, 5-Dimethoxystyryl) phenyl) furan-2-carboxamide (BK3C231) induces cytoprotection in CCD18-Co human colon fibroblast cells through Nrf2/ARE pathway activation. Sci Rep 2021; 11:4773. [PMID: 33637843 PMCID: PMC7910600 DOI: 10.1038/s41598-021-83163-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022] Open
Abstract
Cytoprotection involving the nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling pathway is an important preventive strategy for normal cells against carcinogenesis. In our previous study, the chemopreventive potential of (E)-N-(2-(3, 5-Dimethoxystyryl) phenyl) furan-2-carboxamide (BK3C231) has been elucidated through its cytoprotective effects against DNA and mitochondrial damages in the human colon fibroblast CCD-18Co cell model. Therefore this study aimed to investigate the molecular mechanisms underlying BK3C231-induced cytoprotection and the involvement of the Nrf2/ARE pathway. The cells were pretreated with BK3C231 before exposure to carcinogen 4-nitroquinoline N-oxide (4NQO). BK3C231 increased the protein expression and activity of cytoprotective enzymes namely NAD(P)H:quinone oxidoreductase 1 (NQO1), glutathione S-transferase (GST) and heme oxygenase-1 (HO-1), as well as restoring the expression of glutamate-cysteine ligase catalytic subunit (GCLC) back to the basal level. Furthermore, dissociation of Nrf2 from its inhibitory protein, Keap1, and ARE promoter activity were upregulated in cells pretreated with BK3C231. Taken together, our findings suggest that BK3C231 exerts cytoprotection by activating the Nrf2 signaling pathway which leads to ARE-mediated upregulation of cytoprotective proteins. This study provides new mechanistic insights into BK3C231 chemopreventive activities and highlights the importance of stilbene derivatives upon development as a potential chemopreventive agent.
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Affiliation(s)
- Huan Huan Tan
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
| | | | - Salmaan Hussain Inayat-Hussain
- Product Stewardship and Toxicology, Group Health, Safety, Security and Environment, Petroliam Nasional Berhad (PETRONAS), 50088, Kuala Lumpur, Malaysia.,Department of Environmental Health Sciences, Yale School of Public Health, 60 College St, New Haven, CT, 06250, USA
| | - Kok Meng Chan
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia.
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11
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Horiuchi M, Taguchi K, Hirose W, Tsuchida K, Suzuki M, Taniyama Y, Kamei T, Yamamoto M. Cellular Nrf2 Levels Determine Cell Fate during Chemical Carcinogenesis in Esophageal Epithelium. Mol Cell Biol 2021; 41:e00536-20. [PMID: 33257504 PMCID: PMC8093497 DOI: 10.1128/mcb.00536-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/02/2020] [Accepted: 11/16/2020] [Indexed: 12/26/2022] Open
Abstract
Nrf2 is essential for cytoprotection against carcinogens, and through systemic Nrf2 knockout mice, Nrf2-deficient cells were shown to be susceptible to chemical carcinogens and prone to developing cancers. However, the oncogenic potential of Nrf2-deficient epithelial cells surrounded by normal cells in the esophagus could not be assessed by previous models, and the fate of Nrf2-deficient cells in such situations remains elusive. In this study, therefore, we generated mice that harbor almost equal levels of cells with Nrf2 deleted and those with Nrf2 intact in the basal layer of the esophageal epithelium, utilizing inducible Cre-mediated recombination of Nrf2 alleles in adults through moderate use of tamoxifen. In this mouse model, epithelial cells with Nrf2 deleted were maintained with no obvious decrease or phenotypic changes for 12 weeks under unstressed conditions. Upon exposure to the carcinogen 4-nitroquinoline-1-oxide (4NQO), the cells with Nrf2 deleted accumulated DNA damage and selectively disappeared from the epithelium, so almost all 4NQO-induced tumors originated from cells with Nrf2 intact and not from those with Nrf2 deleted. We propose that cells with Nrf2 deleted do not undergo carcinogenesis due to selective elimination upon exposure to 4NQO, indicating that cellular Nrf2 abundance and the epithelial environment determine the cell fate or oncogenic potential of esophageal epithelial cells in 4NQO-induced carcinogenesis.
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Affiliation(s)
- Makoto Horiuchi
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Keiko Taguchi
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Medical Biochemistry, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine (INGEM), Tohoku University, Sendai, Japan
| | - Wataru Hirose
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Kouhei Tsuchida
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
| | - Mikiko Suzuki
- Center for Radioisotope Sciences, Tohoku University, Sendai, Japan
| | - Yusuke Taniyama
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Takashi Kamei
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Medical Biochemistry, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine (INGEM), Tohoku University, Sendai, Japan
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12
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Choi JW, Kim S, Yoo JS, Kim HJ, Kim HJ, Kim BE, Lee EH, Lee YS, Park JH, Park KD. Development and optimization of halogenated vinyl sulfones as Nrf2 activators for the treatment of Parkinson's disease. Eur J Med Chem 2020; 212:113103. [PMID: 33387904 DOI: 10.1016/j.ejmech.2020.113103] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023]
Abstract
The Kelch-like ECH-associated protein 1 (Keap1)-Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway plays a pivotal role in the cellular defense system against oxidative stress by inducing antioxidant and anti-inflammatory effects. We previously developed Nrf2 activators that potentially protect the death of dopaminergic (DAergic) neuronal cells against oxidative stress in Parkinson's disease (PD). In this study, we designed and synthesized a class of halogenated vinyl sulfones by inserting halogens and pyridine to maximize Nrf2 activation efficacy. Among the synthesized compounds, (E)-3-chloro-2-(2-((2-chlorophenyl)sulfonyl)vinyl)pyridine (9d) significantly exhibited potent Nrf2 activating efficacy (9d: EC50 = 26 nM) at least 10-fold compared with the previous developed compounds (1 and 2). Furthermore, treating with 9d remarkably increased Nrf2 nuclear translocation and Nrf2 protein levels in microglial BV-2 cells. 9d was shown to induce the expression of antioxidant response genes HO-1, GCLC, GCLM, and SOD-1 at both the mRNA and protein levels and suppress proinflammatory cytokines and enzymes. Also, 9d remarkably protected DAergic neurons and restored the PD-associated motor dysfunction in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model.
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Affiliation(s)
- Ji Won Choi
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Siwon Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jong Seok Yoo
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
| | - Hyeon Jeong Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyeon Ji Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Byung Eun Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Department of Fundamental Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Elijah Hwejin Lee
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Yong Sup Lee
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea; Department of Fundamental Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
| | - Jong-Hyun Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
| | - Ki Duk Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea.
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13
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Robertson H, Dinkova-Kostova AT, Hayes JD. NRF2 and the Ambiguous Consequences of Its Activation during Initiation and the Subsequent Stages of Tumourigenesis. Cancers (Basel) 2020; 12:E3609. [PMID: 33276631 PMCID: PMC7761610 DOI: 10.3390/cancers12123609] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/19/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023] Open
Abstract
NF-E2 p45-related factor 2 (NRF2, encoded in the human by NFE2L2) mediates short-term adaptation to thiol-reactive stressors. In normal cells, activation of NRF2 by a thiol-reactive stressor helps prevent, for a limited period of time, the initiation of cancer by chemical carcinogens through induction of genes encoding drug-metabolising enzymes. However, in many tumour types, NRF2 is permanently upregulated. In such cases, its overexpressed target genes support the promotion and progression of cancer by suppressing oxidative stress, because they constitutively increase the capacity to scavenge reactive oxygen species (ROS), and they support cell proliferation by increasing ribonucleotide synthesis, serine biosynthesis and autophagy. Herein, we describe cancer chemoprevention and the discovery of the essential role played by NRF2 in orchestrating protection against chemical carcinogenesis. We similarly describe the discoveries of somatic mutations in NFE2L2 and the gene encoding the principal NRF2 repressor, Kelch-like ECH-associated protein 1 (KEAP1) along with that encoding a component of the E3 ubiquitin-ligase complex Cullin 3 (CUL3), which result in permanent activation of NRF2, and the recognition that such mutations occur frequently in many types of cancer. Notably, mutations in NFE2L2, KEAP1 and CUL3 that cause persistent upregulation of NRF2 often co-exist with mutations that activate KRAS and the PI3K-PKB/Akt pathway, suggesting NRF2 supports growth of tumours in which KRAS or PKB/Akt are hyperactive. Besides somatic mutations, NRF2 activation in human tumours can occur by other means, such as alternative splicing that results in a NRF2 protein which lacks the KEAP1-binding domain or overexpression of other KEAP1-binding partners that compete with NRF2. Lastly, as NRF2 upregulation is associated with resistance to cancer chemotherapy and radiotherapy, we describe strategies that might be employed to suppress growth and overcome drug resistance in tumours with overactive NRF2.
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Affiliation(s)
- Holly Robertson
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, UK; (H.R.); (A.T.D.-K.)
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Cambridge CB10 1SA, UK
| | - Albena T. Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, UK; (H.R.); (A.T.D.-K.)
| | - John D. Hayes
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, UK; (H.R.); (A.T.D.-K.)
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14
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The 4-NQO mouse model: An update on a well-established in vivo model of oral carcinogenesis. Methods Cell Biol 2020; 163:197-229. [PMID: 33785166 DOI: 10.1016/bs.mcb.2020.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The early detection and management of oral premalignant lesions (OPMDs) improve their outcomes. Animal models that mimic histological and biological processes of human oral carcinogenesis may help to improve the identification of OPMD at-risk of progression into oral squamous cell carcinoma and to develop preventive strategies for the entire field of cancerization. No animal model is perfectly applicable for investigating human oral carcinogenesis. However, the 4-nitroquinoline 1-oxide (4-NQO) mouse model is well established and mimics several morphological, histological, genomic and molecular features of human oral carcinogenesis. Some of the reasons for the success of this model include its reproducible experimental conditions with limited variation, the possibility of realizing longitudinal studies with invasive intervention or gene manipulation, and sample availability for all stages of oral carcinogenesis, especially premalignant lesions. Moreover, the role of histological and molecular alterations in the field of cancerization (i.e., macroscopically healthy mucosa exposed to a carcinogen) during oral carcinogenesis can be easily explored using this model. In this review, we discuss the advantages and drawbacks of this model for studying human oral carcinogenesis. In summary, the 4-NQO-induced murine oral cancer model is relevant for investigating human oral carcinogenesis, including the immune microenvironment, and for evaluating therapeutic and chemoprevention agents.
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15
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Sequeira I, Rashid M, Tomás IM, Williams MJ, Graham TA, Adams DJ, Vigilante A, Watt FM. Genomic landscape and clonal architecture of mouse oral squamous cell carcinomas dictate tumour ecology. Nat Commun 2020; 11:5671. [PMID: 33168804 PMCID: PMC7652942 DOI: 10.1038/s41467-020-19401-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 10/06/2020] [Indexed: 01/10/2023] Open
Abstract
To establish whether 4-nitroquinoline N-oxide-induced carcinogenesis mirrors the heterogeneity of human oral squamous cell carcinoma (OSCC), we have performed genomic analysis of mouse tongue lesions. The mutational signatures of human and mouse OSCC overlap extensively. Mutational burden is higher in moderate dysplasias and invasive SCCs than in hyperplasias and mild dysplasias, although mutations in p53, Notch1 and Fat1 occur in early lesions. Laminin-α3 mutations are associated with tumour invasiveness and Notch1 mutant tumours have an increased immune infiltrate. Computational modelling of clonal dynamics indicates that high genetic heterogeneity may be a feature of those mild dysplasias that are likely to progress to more aggressive tumours. These studies provide a foundation for exploring OSCC evolution, heterogeneity and progression.
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Affiliation(s)
- Inês Sequeira
- Centre for Stem Cells & Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
- Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK
| | - Mamunur Rashid
- Experimental Cancer Genetics, The Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK
| | - Inês M Tomás
- Centre for Stem Cells & Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Marc J Williams
- Centre for Cancer Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Trevor A Graham
- Centre for Cancer Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, EC1M 6BQ, UK
| | - David J Adams
- Experimental Cancer Genetics, The Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK
| | - Alessandra Vigilante
- Centre for Stem Cells & Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Fiona M Watt
- Centre for Stem Cells & Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK.
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16
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Kumar EA, Kokulnathan T, Wang TJ, Anthuvan AJ, Chang YH. Two-dimensional titanium carbide (MXene) nanosheets as an efficient electrocatalyst for 4-nitroquinoline N-oxide detection. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113354] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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17
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Cytoprotective effects of (E)-N-(2-(3, 5-dimethoxystyryl) phenyl) furan-2-carboxamide (BK3C231) against 4-nitroquinoline 1-oxide-induced damage in CCD-18Co human colon fibroblast cells. PLoS One 2020; 15:e0223344. [PMID: 32365104 PMCID: PMC7197815 DOI: 10.1371/journal.pone.0223344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 04/15/2020] [Indexed: 12/31/2022] Open
Abstract
Stilbenes are a group of chemicals characterized with the presence of 1,2-diphenylethylene. Previously, our group has demonstrated that synthesized (E)-N-(2-(3, 5-dimethoxystyryl) phenyl) furan-2-carboxamide (BK3C231) possesses potential chemopreventive activity specifically inducing NAD(P)H:quinone oxidoreductase 1 (NQO1) protein expression and activity. In this study, the cytoprotective effects of BK3C231 on cellular DNA and mitochondria were investigated in normal human colon fibroblast, CCD-18Co cells. The cells were pretreated with BK3C231 prior to exposure to the carcinogen 4-nitroquinoline 1-oxide (4NQO). BK3C231 was able to inhibit 4NQO-induced cytotoxicity. Cells treated with 4NQO alone caused high level of DNA and mitochondrial damages. However, pretreatment with BK3C231 protected against these damages by reducing DNA strand breaks and micronucleus formation as well as decreasing losses of mitochondrial membrane potential (ΔΨm) and cardiolipin. Interestingly, our study has demonstrated that nitrosative stress instead of oxidative stress was involved in 4NQO-induced DNA and mitochondrial damages. Inhibition of 4NQO-induced nitrosative stress by BK3C231 was observed through a decrease in nitric oxide (NO) level and an increase in glutathione (GSH) level. These new findings elucidate the cytoprotective potential of BK3C231 in human colon fibroblast CCD-18Co cell model which warrants further investigation into its chemopreventive role.
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18
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Zhang M, Xu Y, Jiang L. Sulforaphane attenuates angiotensin II-induced human umbilical vein endothelial cell injury by modulating ROS-mediated mitochondrial signaling. Hum Exp Toxicol 2020; 39:734-747. [PMID: 31957488 DOI: 10.1177/0960327119893414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The study aimed to investigate whether sulforaphane (SFN) protects against angiotensin II (Ang II)-mediated human umbilical vein endothelial cell (HUVEC) injury. Ang II treatment decreased HUVEC viability, increased cell apoptosis, decreased mitochondria membrane potential (MMP), impaired cytochrome c release, activated caspase 3/9, and induced reactive oxygen species (ROS) production, and nicotinamide adenine dinucleotide phosphate oxidase activity. Moreover, SFN treatment blunted Ang II-stimulated oxidative stress and mitochondria-related apoptosis in HUVECs. The ROS scavenger N-acetyl-l-cysteine reduced Ang II-induced oxidative stress and apoptosis, indicating that ROS generation is involved in the Ang II-induced mitochondria-mediated apoptotic pathway. SFN induced nuclear factor erythroid 2 (Nrf2) activation and expression in Ang II-stimulated HUVECs. Downregulation of Nrf2 expression by a target-specific siRNA revealed an Nrf2-dependent effect on the SFN-mediated attenuation of Ang II-induced apoptosis in HUVECs. Pretreatment with brusatol, an Nrf2-specific inhibitor, reversed the protective effects of SFN on Ang II-induced HUVEC injury. SFN treatment protected HUVECs from Ang II-induced damage by decreasing oxidative stress and ameliorating mitochondrial injury.
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Affiliation(s)
- M Zhang
- Division of Cardiology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Xu
- Division of Cardiology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Jiang
- Division of Cardiology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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19
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Lazzara PR, David BP, Ankireddy A, Richardson BG, Dye K, Ratia KM, Reddy SP, Moore TW. Isoquinoline Kelch-like ECH-Associated Protein 1-Nuclear Factor (Erythroid-Derived 2)-like 2 (KEAP1-NRF2) Inhibitors with High Metabolic Stability. J Med Chem 2019; 63:6547-6560. [PMID: 31682434 DOI: 10.1021/acs.jmedchem.9b01074] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Pharmacological activation of NRF2 (nuclear factor erythroid 2-related factor 2) arises from blocking the interaction of NRF2 with its negative regulator, KEAP1 (Kelch-like ECH-associated protein 1). We previously reported an isoquinoline-based NRF2 activator, but this compound showed negative logD7.4 and a -2 charge at physiological pH, which may have limited its membrane permeability. In this work, we report potent, metabolically stable analogs that result from replacing a carboxymethyl group at the 4-position with a fluoroalkyl group.
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20
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Houghton CA. Sulforaphane: Its "Coming of Age" as a Clinically Relevant Nutraceutical in the Prevention and Treatment of Chronic Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2716870. [PMID: 31737167 PMCID: PMC6815645 DOI: 10.1155/2019/2716870] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/24/2019] [Accepted: 09/06/2019] [Indexed: 12/17/2022]
Abstract
A growing awareness of the mechanisms by which phytochemicals can influence upstream endogenous cellular defence processes has led to intensified research into their potential relevance in the prevention and treatment of disease. Pharmaceutical medicine has historically looked to plants as sources of the starting materials for drug development; however, the focus of nutraceutical medicine is to retain the plant bioactive in as close to its native state as possible. As a consequence, the potency of a nutraceutical concentrate or an extract may be lower than required for significant gene expression. The molecular structure of bioactive phytochemicals to a large extent determines the molecule's bioavailability. Polyphenols are abundant in dietary phytochemicals, and extensive in vitro research has established many of the signalling mechanisms involved in favourably modulating human biochemical pathways. Such pathways are associated with core processes such as redox modulation and immune modulation for infection control and for downregulating the synthesis of inflammatory cytokines. Although the relationship between oxidative stress and chronic disease continues to be affirmed, direct-acting antioxidants such as vitamins A, C, and E, beta-carotene, and others have not yielded the expected preventive or therapeutic responses, even though several large meta-analyses have sought to evaluate the potential benefit of such supplements. Because polyphenols exhibit poor bioavailability, few of their impressive in vitro findings have been replicated in vivo. SFN, an aliphatic isothiocyanate, emerges as a phytochemical with comparatively high bioavailability. A number of clinical trials have demonstrated its ability to produce favourable outcomes in conditions for which there are few satisfactory pharmaceutical solutions, foreshadowing the potential for SFN as a clinically relevant nutraceutical. Although myrosinase-inert broccoli sprout extracts are widely available, there now exist myrosinase-active broccoli sprout supplements that yield sufficient SFN to match the doses used in clinical trials.
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21
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Melrose J. The Glucosinolates: A Sulphur Glucoside Family of Mustard Anti-Tumour and Antimicrobial Phytochemicals of Potential Therapeutic Application. Biomedicines 2019; 7:biomedicines7030062. [PMID: 31430999 PMCID: PMC6784281 DOI: 10.3390/biomedicines7030062] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/15/2019] [Accepted: 08/17/2019] [Indexed: 12/13/2022] Open
Abstract
This study reviewed aspects of the biology of two members of the glucosinolate family, namely sinigrin and glucoraphanin and their anti-tumour and antimicrobial properties. Sinigrin and glucoraphanin are converted by the β-sulphoglucosidase myrosinase or the gut microbiota into their bioactive forms, allyl isothiocyanate (AITC) and sulphoraphanin (SFN) which constitute part of a sophisticated defence system plants developed over several hundred million years of evolution to protect them from parasitic attack from aphids, ticks, bacteria or nematodes. Delivery of these components from consumption of cruciferous vegetables rich in the glucosinolates also delivers many other members of the glucosinolate family so the dietary AITCs and SFN do not act in isolation. In vitro experiments with purified AITC and SFN have demonstrated their therapeutic utility as antimicrobials against a range of clinically important bacteria and fungi. AITC and SFN are as potent as Vancomycin in the treatment of bacteria listed by the World Health Organisation as antibiotic-resistant “priority pathogens” and also act as anti-cancer agents through the induction of phase II antioxidant enzymes which inactivate potential carcinogens. Glucosinolates may be useful in the treatment of biofilms formed on medical implants and catheters by problematic pathogenic bacteria such as Pseudomonas aeruginosa and Staphylococcus aureus and are potent antimicrobials against a range of clinically important bacteria and fungi. The glucosinolates have also been applied in the prevention of bacterial and fungal spoilage of food products in advanced atmospheric packaging technology which improves the shelf-life of these products.
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Affiliation(s)
- James Melrose
- Honorary Senior Research Associate, Raymond Purves Bone and Joint Research Laboratory, Kolling Institute of Medical Research, Royal North Shore Hospital, Faculty of Medicine and Health, The University of Sydney, St. Leonards, NSW 2065, Australia.
- Adjunct Professor, Graduate School of Biomedical Engineering, Faculty of Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
- Sydney Medical School, Northern, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia.
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22
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Scioli MG, Storti G, D'Amico F, Gentile P, Fabbri G, Cervelli V, Orlandi A. The Role of Breast Cancer Stem Cells as a Prognostic Marker and a Target to Improve the Efficacy of Breast Cancer Therapy. Cancers (Basel) 2019; 11:cancers11071021. [PMID: 31330794 PMCID: PMC6678191 DOI: 10.3390/cancers11071021] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/13/2019] [Accepted: 07/16/2019] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is the most common form of tumor in women and the leading cause of cancer-related mortality. Even though the major cellular burden in breast cancer is constituted by the so-called bulk tumor cells, another cell subpopulation named cancer stem cells (CSCs) has been identified. The latter have stem features, a self-renewal capacity, and the ability to regenerate the bulk tumor cells. CSCs have been described in several cancer types but breast cancer stem cells (BCSCs) were among the first to be identified and characterized. Therefore, many efforts have been put into the phenotypic characterization of BCSCs and the study of their potential as prognostic indicators and therapeutic targets. Many dysregulated pathways in BCSCs are involved in the epithelial-mesenchymal transition (EMT) and are found up-regulated in circulating tumor cells (CTCs), another important cancer cell subpopulation, that shed into the vasculature and disseminate along the body to give metastases. Conventional therapies fail at eliminating BCSCs because of their quiescent state that gives them therapy resistance. Based on this evidence, preclinical studies and clinical trials have tried to establish novel therapeutic regimens aiming to eradicate BCSCs. Markers useful for BCSC identification could also be possible therapeutic methods against BCSCs. New approaches in drug delivery combined with gene targeting, immunomodulatory, and cell-based therapies could be promising tools for developing effective CSC-targeted drugs against breast cancer.
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Affiliation(s)
- Maria Giovanna Scioli
- Anatomic Pathology Institute, Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Gabriele Storti
- Plastic and Reconstructive Surgery, Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Federico D'Amico
- Anatomic Pathology Institute, Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Pietro Gentile
- Plastic and Reconstructive Surgery, Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Giulia Fabbri
- Anatomic Pathology Institute, Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Valerio Cervelli
- Plastic and Reconstructive Surgery, Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Augusto Orlandi
- Anatomic Pathology Institute, Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Roma, Italy.
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23
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Li Z, Liu Y, Fang Z, Yang L, Zhuang M, Zhang Y, Lv H. Natural Sulforaphane From Broccoli Seeds Against Influenza A Virus Replication in MDCK Cells. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19858221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Zhansheng Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Yumei Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Zhiyuan Fang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Limei Yang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Mu Zhuang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Yangyong Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
| | - Honghao Lv
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, P.R. China
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24
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Ma Y, Zhao L, Coleman D, Gao M, Loor J. Tea polyphenols protect bovine mammary epithelial cells from hydrogen peroxide-induced oxidative damage in vitro by activating NFE2L2/HMOX1 pathways. J Dairy Sci 2019; 102:1658-1670. [DOI: 10.3168/jds.2018-15047] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 10/25/2018] [Indexed: 12/31/2022]
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25
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Fix C, Carver-Molina A, Chakrabarti M, Azhar M, Carver W. Effects of the isothiocyanate sulforaphane on TGF-β1-induced rat cardiac fibroblast activation and extracellular matrix interactions. J Cell Physiol 2019; 234:13931-13941. [PMID: 30609032 DOI: 10.1002/jcp.28075] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 12/11/2018] [Indexed: 12/30/2022]
Abstract
An important step in many pathological conditions, particularly tissue and organ fibrosis, is the conversion of relatively quiescent cells into active myofibroblasts. These are highly specialized cells that participate in normal wound healing but also contribute to pathogenesis. These cells possess characteristics of smooth muscle cells and fibroblasts, have enhanced synthetic activity secreting abundant extracellular matrix components, cytokines, and growth factors, and are capable of generating contractile force. As such, these cells have become potential therapeutic targets in a number of disease settings. Transforming growth factor β (TGF-β) is a potent stimulus of fibrosis and myofibroblast formation and likewise is an important therapeutic target in several disease conditions. The plant-derived isothiocyanate sulforaphane has been shown to have protective effects in several pathological models including diabetic cardiomyopathy, carcinogenesis, and fibrosis. These studies suggest that sulforaphane may be an attractive preventive agent against disease progression, particularly in conditions involving alterations of the extracellular matrix and activation of myofibroblasts. However, few studies have evaluated the effects of sulforaphane on cardiac fibroblast activation and their interactions with the extracellular matrix. The present studies were carried out to determine the potential effects of sulforaphane on the conversion of quiescent cardiac fibroblasts to an activated myofibroblast phenotype and associated alterations in signaling, expression of extracellular matrix receptors, and cellular physiology following stimulation with TGF-β1. These studies demonstrate that sulforaphane attenuates TGF-β1-induced myofibroblast formation and contractile activity. Sulforaphane also reduces expression of collagen-binding integrins and inhibits canonical and noncanonical TGF-β signaling pathways.
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Affiliation(s)
- Charity Fix
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Amanda Carver-Molina
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Mrinmay Chakrabarti
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Mohamad Azhar
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Wayne Carver
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
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Fu J, Xiong Z, Huang C, Li J, Yang W, Han Y, Paiboonrungruan C, Major MB, Chen KN, Kang X, Chen X. Hyperactivity of the transcription factor Nrf2 causes metabolic reprogramming in mouse esophagus. J Biol Chem 2018; 294:327-340. [PMID: 30409900 DOI: 10.1074/jbc.ra118.005963] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/03/2018] [Indexed: 12/17/2022] Open
Abstract
Mutations in the genes encoding nuclear factor (erythroid-derived 2)-like 2 (NRF2), Kelch-like ECH-associated protein 1 (KEAP1), and cullin 3 (CUL3) are commonly observed in human esophageal squamous cell carcinoma (ESCC) and result in activation of the NRF2 signaling pathway. Moreover, hyperactivity of the transcription factor Nrf2 has been found to cause esophageal hyperproliferation and hyperkeratosis in mice. However, the underlying mechanism is unclear. In this study, we aimed to understand the molecular mechanisms of esophageal hyperproliferation in mice due to hyperactive Nrf2. Esophageal tissues were obtained from genetically modified mice that differed in the status of the Nrf2 gene and genes in the same pathway (Nrf2 -/-, Keap1 -/-, K5Cre;Pkm2fl/fl;Keap1 -/-, and WT) and analyzed for metabolomic profiles, Nrf2 ChIP-seq, and gene expression. We found that hyperactive Nrf2 causes metabolic reprogramming and up-regulation of metabolic genes in the mouse esophagus. One of the glycolysis genes encoding pyruvate kinase M2 (Pkm2) was not only differentially up-regulated, but also glycosylated and oligomerized, resulting in increased ATP biosynthesis. However, constitutive knockout of Pkm2 failed to inhibit this esophageal phenotype in vivo, and this failure may have been due to compensation by Pkm1 up-regulation. Transient inhibition of NRF2 or glycolysis inhibited the growth of human ESCC cells in which NRF2 is hyperactive in vitro In summary, hyperactive Nrf2 causes metabolic reprogramming in the mouse esophagus through its transcriptional regulation of metabolic genes. Blocking glycolysis transiently inhibits cell proliferation and may therefore have therapeutically beneficial effects on NRF2high ESCC in humans.
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Affiliation(s)
- Junsheng Fu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, China; Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina 27707
| | - Zhaohui Xiong
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina 27707
| | - Caizhi Huang
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina 27707
| | - Jing Li
- Department of Thoracic Surgery, Ningxia Medical University General Hospital, Yinchuan, Ningxia 750004, China
| | - Wenjun Yang
- Key Laboratory of Fertility Preservation and Maintenance (Ministry of Education), Cancer Institute of the General Hospital, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Yuning Han
- Department of Thoracic Surgery, Ningxia Medical University General Hospital, Yinchuan, Ningxia 750004, China
| | - Chorlada Paiboonrungruan
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina 27707
| | - Michael B Major
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Ke-Neng Chen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), The First Department of Thoracic Surgery, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Xiaozheng Kang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), The First Department of Thoracic Surgery, Peking University Cancer Hospital and Institute, Beijing 100142, China.
| | - Xiaoxin Chen
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina 27707; Center for Esophageal Disease and Swallowing, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599.
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27
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Shi J, Zhang M, Zhang L, Deng H. Epigallocatechin-3-gallate attenuates microcystin-LR-induced apoptosis in human umbilical vein endothelial cells through activation of the NRF2/HO-1 pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 239:466-472. [PMID: 29679944 DOI: 10.1016/j.envpol.2018.04.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/03/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
Our previous study showed that the tea extract, epigallocatechin-3-gallate (EGCG), protects against microcystin-LR (MC-LR) -mediated apoptosis of human umbilical vein endothelial cells (HUVECs); however, the mechanism underlying MC-LR-induced HUVEC apoptosis remains incompletely understood. In this study, we investigated whether the nuclear factor erythroid-like 2 (NRF2)/heme oxygenase-1 (HO-1) pathway, which regulates antioxidant transcriptional regulation of oxidative stress and apoptosis, is involved in this process. Mitochondrial membrane potential (MMP) and caspase-3/-9 activities were evaluated in HUVECs by JC-1 staining and colorimetric activity assay, and a DCFH-DA fluorescent probe assay was used to quantitate reactive oxygen species (ROS) generation. The effects of MC-LR, EGCG, NF2, and HO-1 on HUVEC apoptosis were explored by western blotting and small interfering RNA (siRNA) analyses. MC-LR treatment downregulated HUVEC mitochondrial membrane potential, and decreased levels of cytochrome c release and activated caspase-3/-9, ROS generation, consequently inducing HUVEC apoptosis. EGCG treatment attenuated MC-LR-mediated HUVEC oxidative stress and mitochondria-related apoptosis. EGCG induced NRF2/HO-1 expression and activation in MC-LR treated HUVECs, while downregulation of NRF2/HO-1 by specific siRNAs revealed that NRF2/HO-1 signaling was involved in EGCG attenuation of MC-LR-induced HUVEC apoptosis. Our findings indicate that EGCG treatment protects against MC-LR-mediated HUVEC apoptosis via activation of NRF2/HO-1 signaling.
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Affiliation(s)
- Jun Shi
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, China; Shanghai Institute of Pollution Control and Ecological Safety, China
| | - Min Zhang
- Division of Cardiology, TongRen Hospital, Shanghai Jiao Tong University School of Medicine, 1111 Xianxia Road, Shanghai 200336, China.
| | - Libin Zhang
- Department of Thoracic Surgery, First People's Hospital of Yunnan Province, Kunming 650031, China
| | - Huipin Deng
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, China; Shanghai Institute of Pollution Control and Ecological Safety, China
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Mollenhauer M, Mehrkens D, Rudolph V. Nitrated fatty acids in cardiovascular diseases. Nitric Oxide 2018; 78:S1089-8603(17)30292-6. [PMID: 29588164 DOI: 10.1016/j.niox.2018.03.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 11/26/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death and accounts for one third of disease-related mortality worldwide. Dysregulated redox mechanisms, in particular the formation of reactive oxygen species (ROS) play a pivotal pathogenetic role in CVD. Nitro-fatty acids (NO2-FAs) are electrophilic molecules which have a NO2-group bound to one of their olefinic carbons. They are endogenously formed by the reaction of reactive nitrogen species with unsaturated fatty acids. Basal levels of NO2-FAs are in the low nanomolar range and higher concentrations can be encountered under acidic (stomach) and inflammatory (e.g. ischemia/reperfusion) conditions. Dietary intake of polyunsaturated fatty acids in combination with nitrites raises circulating NO2-FAs to a clinically relevant level in mice. NO2-FAs undergo reversible covalent binding to cysteine residues and by virtue of these posttranslational protein modifications act as potent anti-inflammatory signaling mediators via modulation of various critical pathways like nuclear factor E2-related factor 2 (Nrf2)- and peroxisome proliferator-activated receptor γ (PPARγ) activation, nuclear factor-kappa B (NF-κB) inhibition and hem oxygenase-1 (HO-1)- and heat shock protein (HSP) induction. In this review article, we summarize recent findings about the effects and underlying molecular mechanisms of NO2-FAs from a variety of pre-clinical cardiovascular disease models. The described findings suggest the potential of NO2-FAs to emerge as therapeutic agents with a broad range of potential clinical applications for CVD.
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Affiliation(s)
- Martin Mollenhauer
- Department of Cardiology, Heart Center, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Dennis Mehrkens
- Department of Cardiology, Heart Center, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Volker Rudolph
- Department of Cardiology, Heart Center, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.
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29
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Leone A, Diorio G, Sexton W, Schell M, Alexandrow M, Fahey JW, Kumar NB. Sulforaphane for the chemoprevention of bladder cancer: molecular mechanism targeted approach. Oncotarget 2018; 8:35412-35424. [PMID: 28423681 PMCID: PMC5471065 DOI: 10.18632/oncotarget.16015] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 02/22/2017] [Indexed: 12/11/2022] Open
Abstract
The clinical course for both early and late stage Bladder Cancer (BC) continues to be characterized by significant patient burden due to numerous occurrences and recurrences requiring frequent surveillance strategies, intravesical drug therapies, and even more aggressive treatments in patients with locally advanced or metastatic disease. For these reasons, BC is also the most expensive cancer to treat. Fortunately, BC offers an excellent platform for chemoprevention interventions with potential to optimize the systemic and local exposure of promising agents to the bladder mucosa. However, other than smoking cessation, there is a paucity of research that systematically examines agents for chemoprevention of bladder cancers. Adopting a systematic, molecular-mechanism based approach, the goal of this review is to summarize epidemiological, in vitro, and preclinical studies, including data regarding the safety, bioavailability, and efficacy of agents evaluated for bladder cancer chemoprevention. Based on the available studies, phytochemicals, specifically isothiocyanates such as sulforaphane, present in Brassicaceae or “cruciferous” vegetables in the precursor form of glucoraphanin are: (a) available in standardized formulations; (b) bioavailable- both systemically and in the bladder; (c) observed to be potent inhibitors of BC carcinogenesis through multiple mechanisms; and (d) without toxicities at these doses. Based on available evidence from epidemiological, in vitro, preclinical, and early phase trials, phytochemicals, specifically isothiocyanates (ITCs) such as sulforaphane (SFN) represent a promising potential chemopreventitive agent in bladder cancer.
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Affiliation(s)
- Andrew Leone
- Genitourinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
| | - Gregory Diorio
- Genitourinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
| | - Wade Sexton
- Genitourinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
| | - Michael Schell
- Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
| | - Mark Alexandrow
- Cancer Biology and Evolution, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
| | - Jed W Fahey
- Clinical Pharmacology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Nagi B Kumar
- Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Inc., Tampa, FL, USA
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Chen X, Hu Q, Wu T, Wang C, Xia J, Yang L, Cheng B, Chen X. Proteomics-based investigation of multiple stages of OSCC development indicates that the inhibition of Trx-1 delays oral malignant transformation. Int J Oncol 2018; 52:733-742. [PMID: 29328386 PMCID: PMC5807042 DOI: 10.3892/ijo.2018.4235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/31/2017] [Indexed: 12/30/2022] Open
Abstract
The majority of cases of oral squamous cell carcinoma (OSCC) develop from oral potentially malignant disorders, which have been confirmed to be involved in chronic oxidative stimulation. However, no effective treatment approaches have been used to prevent the development of dysplasia into cancerous lesions thus far. In the present study, a well-established OSCC model was used to detect proteomics profiles at different stages during oral malignant transformation. Of the 15 proteins that were found to be upregulated in both the dysplasia and carcinoma stages, the oxidative stress-associated proteins, thioredoxin-1 (Trx-1), glutaredoxin-1 and peroxiredoxin-2 were note as the proteins with significant changes in expression Trx-1 was identified to be the most significantly upregulated protein in the precancerous stage. Validation experiments confirmed that Trx-1 was overex-pressed both in dysplasia and cancerous tissue samples, and the inhibition of Trx-1 was able to promote the apoptosis of OSCC cells under hypoxic conditions. Furthermore, the experimental application of a Trx-1-specific inhibitory agent in an animal model led to a lower cancerization rate and a delay in tumor formation. The possible mechanisms were associated with the increased apoptosis via a reactive oxygen species (ROS)-dependent pathway. Taken together, our findings indicate that Trx-1 may be an important target for delaying oral malignant transformation, which provides a novel therapeutic strategy for the prevention and treatment of OSCC.
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Affiliation(s)
- Xijuan Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Qinchao Hu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Tong Wu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Chunyang Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Juan Xia
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Linglan Yang
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Bin Cheng
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
| | - Xiaobing Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510060, P.R. China
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31
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Fan H, Paiboonrungruan C, Zhang X, Prigge JR, Schmidt EE, Sun Z, Chen X. Nrf2 regulates cellular behaviors and Notch signaling in oral squamous cell carcinoma cells. Biochem Biophys Res Commun 2017; 493:833-839. [PMID: 28821430 PMCID: PMC6037169 DOI: 10.1016/j.bbrc.2017.08.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/13/2017] [Indexed: 11/18/2022]
Abstract
Oxidative stress is known to play a pivotal role in the development of oral squamous cell carcinoma (OSCC). We have demonstrated that activation of the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway has chemopreventive effects against oxidative stress-associated OSCC. However, Nrf2 have dual roles in cancer development; while it prevents carcinogenesis of normal cells, hyperactive Nrf2 also promotes the survival of cancer cells. This study is aimed to understand the function of Nrf2 in regulating cellular behaviors of OSCC cells, and the potential mechanisms through which Nrf2 facilitates OSCC. We established the Nrf2-overexpressing and Nrf2-knockdown OSCC cell lines, and examined the function of Nrf2 in regulating cell proliferation, migration, invasion, cell cycle and colony formation. Our data showed that Nrf2 overexpression promoted cancer phenotypes in OSCC cells, whereas Nrf2 silencing inhibited these phenotypes. In addition, Nrf2 positively regulated Notch signaling pathway in OSCC cells in vitro. Consistent with this observation, Nrf2 activation in Keap1-/- mice resulted in not only hyperproliferation of squamous epithelial cells in mouse tongue as evidenced by increased expression of PCNA, but also activation of Notch signaling in these cells as evidenced by increased expression of NICD1 and Hes1. In conclusion, Nrf2 regulates cancer behaviors and Notch signaling in OSCC cells.
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Affiliation(s)
- Hong Fan
- Department of Oral Medicine, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing 100050, China
| | | | - Xinyan Zhang
- Department of Oral Medicine, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Justin R Prigge
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, MT 59717, USA
| | - Edward E Schmidt
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, MT 59717, USA
| | - Zheng Sun
- Department of Oral Medicine, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing 100050, China.
| | - Xiaoxin Chen
- Cancer Research Program, JLC-BBRI, North Carolina Central University, Durham, NC 27707, USA.
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32
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Gründemann C, Huber R. Chemoprevention with isothiocyanates - From bench to bedside. Cancer Lett 2017; 414:26-33. [PMID: 29111351 DOI: 10.1016/j.canlet.2017.10.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/10/2017] [Accepted: 10/20/2017] [Indexed: 12/15/2022]
Abstract
Isothiocyanates (ITCs) are naturally occurring hydrolization products from glucosinolates (GLSs) in brassicaceae and in epidemiological studies their intake has been weakly to moderately inversely correlated with the risk of colorectal cancer, prostate cancer and lung cancer. Numerous preclinical studies demonstrate chemopreventive mode of actions of ITCs, mainly related to a.) detoxification (induction of phase II enzymes), b.) anti-inflammatory properties by down-regulation of NFkappaB activity, c.) cyclin-mediated cell cycle arrest and d.) epigenetic modulation by inhibition of histone deacetylase activity. First prospective clinical trials were promising in patients with risk of prostate cancer recurrence. The glutathione-S-transferase gene expression seems to play a major role in the individual susceptibility towards ITCs. Safety issues are widely unclear and should be more addressed in future studies because ITCs can, in low concentrations, compromise the function of human immune cells and might impair genome stability.
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Affiliation(s)
- Carsten Gründemann
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Roman Huber
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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33
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Cheng YM, Tsai CC, Hsu YC. Sulforaphane, a Dietary Isothiocyanate, Induces G₂/M Arrest in Cervical Cancer Cells through CyclinB1 Downregulation and GADD45β/CDC2 Association. Int J Mol Sci 2016; 17:ijms17091530. [PMID: 27626412 PMCID: PMC5037805 DOI: 10.3390/ijms17091530] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/24/2016] [Accepted: 09/06/2016] [Indexed: 12/26/2022] Open
Abstract
Globally, cervical cancer is the most common malignancy affecting women. The main treatment methods for this type of cancer include conization or hysterectomy procedures. Sulforaphane (SFN) is a natural, compound-based drug derived from dietary isothiocyanates which has previously been shown to possess potent anti-tumor and chemopreventive effects against several types of cancer. The present study investigated the effects of SFN on anti-proliferation and G2/M phase cell cycle arrest in cervical cancer cell lines (Cx, CxWJ, and HeLa). We found that cytotoxicity is associated with an accumulation of cells in the G2/M phases of the cell-cycle. Treatment with SFN led to cell cycle arrest as well as the down-regulation of Cyclin B1 expression, but not of CDC2 expression. In addition, the effects of GADD45β gene activation in cell cycle arrest increase proportionally with the dose of SFN; however, mitotic delay and the inhibition of proliferation both depend on the dosage of SFN used to treat cancer cells. These results indicate that SFN may delay the development of cancer by arresting cell growth in the G2/M phase via down-regulation of Cyclin B1 gene expression, dissociation of the cyclin B1/CDC2 complex, and up-regulation of GADD45β proteins.
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Affiliation(s)
- Ya-Min Cheng
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
| | - Ching-Chou Tsai
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Chiayi 61333, Taiwan.
| | - Yi-Chiang Hsu
- Graduate Institute of Medical Science, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan.
- Bachelor Degree Program of Medical Sciences Industry, College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan.
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