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Domínguez HJ, Cabrera-García D, Cuadrado C, Novelli A, Fernández-Sánchez MT, Fernández JJ, Daranas AH. Prorocentroic Acid, a Neuroactive Super-Carbon-Chain Compound from the Dinoflagellate Prorocentrum hoffmannianum. Org Lett 2020; 23:13-18. [DOI: 10.1021/acs.orglett.0c03437] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Humberto J. Domínguez
- Instituto Universitario de Bio-Orgánica Antonio González, University of La Laguna, 38206, Tenerife, Spain
| | - David Cabrera-García
- Department of Biochemistry and Molecular Biology and University Institute of Biotechnology of Asturias (IUBA), Campus “El Cristo”, University of Oviedo, 33006 Oviedo, Oviedo, Spain
| | - Cristina Cuadrado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (IPNA-CSIC), La Laguna, 38206, Tenerife, Spain
| | - Antonello Novelli
- Department of Psychology and University Institute of Biotechnology of Asturias (IUBA), Campus “El Cristo”, University of Oviedo; Institute for Sanitary Research of the Princedom of Asturias (ISPA), 33006 Oviedo, Oviedo, Spain
| | - M. Teresa Fernández-Sánchez
- Department of Biochemistry and Molecular Biology and University Institute of Biotechnology of Asturias (IUBA), Campus “El Cristo”, University of Oviedo, 33006 Oviedo, Oviedo, Spain
| | - José J. Fernández
- Instituto Universitario de Bio-Orgánica Antonio González, University of La Laguna, 38206, Tenerife, Spain
| | - Antonio Hernández Daranas
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (IPNA-CSIC), La Laguna, 38206, Tenerife, Spain
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Domínguez HJ, Napolitano JG, Fernández-Sánchez MT, Cabrera-García D, Novelli A, Norte M, Fernández JJ, Daranas AH. Belizentrin, a Highly Bioactive Macrocycle from the Dinoflagellate Prorocentrum belizeanum. Org Lett 2014; 16:4546-9. [DOI: 10.1021/ol502102f] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Humberto J. Domínguez
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - José G. Napolitano
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - M. Teresa Fernández-Sánchez
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - David Cabrera-García
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - Antonello Novelli
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - Manuel Norte
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - José J. Fernández
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
| | - Antonio Hernández Daranas
- Institute
for Bio-Organic Chemistry “Antonio González”,
Center for Biomedical Research of the Canary Islands,
and ∥Department of Chemical
Engineering and Pharmaceutical Technology, Faculty of Pharmacy, University of La Laguna, 38206 La Laguna, Tenerife, Spain
- Department
of Biochemistry and Molecular Biology, and §Department of Psychology, Institute
of Biotechnology of Asturias, Campus “El Cristo”, University of Oviedo, Oviedo 33006, Spain
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Valdiglesias V, Prego-Faraldo MV, Pásaro E, Méndez J, Laffon B. Okadaic acid: more than a diarrheic toxin. Mar Drugs 2013; 11:4328-49. [PMID: 24184795 PMCID: PMC3853731 DOI: 10.3390/md11114328] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 10/08/2013] [Accepted: 10/23/2013] [Indexed: 01/04/2023] Open
Abstract
Okadaic acid (OA) is one of the most frequent and worldwide distributed marine toxins. It is easily accumulated by shellfish, mainly bivalve mollusks and fish, and, subsequently, can be consumed by humans causing alimentary intoxications. OA is the main representative diarrheic shellfish poisoning (DSP) toxin and its ingestion induces gastrointestinal symptoms, although it is not considered lethal. At the molecular level, OA is a specific inhibitor of several types of serine/threonine protein phosphatases and a tumor promoter in animal carcinogenesis experiments. In the last few decades, the potential toxic effects of OA, beyond its role as a DSP toxin, have been investigated in a number of studies. Alterations in DNA and cellular components, as well as effects on immune and nervous system, and even on embryonic development, have been increasingly reported. In this manuscript, results from all these studies are compiled and reviewed to clarify the role of this toxin not only as a DSP inductor but also as cause of alterations at the cellular and molecular levels, and to highlight the relevance of biomonitoring its effects on human health. Despite further investigations are required to elucidate OA mechanisms of action, toxicokinetics, and harmful effects, there are enough evidences illustrating its toxicity, not related to DSP induction, and, consequently, supporting a revision of the current regulation on OA levels in food.
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Affiliation(s)
- Vanessa Valdiglesias
- Toxicology Unit, Department of Psychobiology, University of A Coruña, A Coruña E15071, Spain; E-Mails: (E.P.); (B.L.)
- Department of Cellular and Molecular Biology, University of A Coruna, A Coruña E15071, Spain; E-Mails: (M.V.P.-F.); (J.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +34-981167000; Fax: +34-981167172
| | - María Verónica Prego-Faraldo
- Department of Cellular and Molecular Biology, University of A Coruna, A Coruña E15071, Spain; E-Mails: (M.V.P.-F.); (J.M.)
| | - Eduardo Pásaro
- Toxicology Unit, Department of Psychobiology, University of A Coruña, A Coruña E15071, Spain; E-Mails: (E.P.); (B.L.)
| | - Josefina Méndez
- Department of Cellular and Molecular Biology, University of A Coruna, A Coruña E15071, Spain; E-Mails: (M.V.P.-F.); (J.M.)
| | - Blanca Laffon
- Toxicology Unit, Department of Psychobiology, University of A Coruña, A Coruña E15071, Spain; E-Mails: (E.P.); (B.L.)
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Li FCH, Li BPT, Wu JCC, Chang AYW. Transition from oxidative stress to nitrosative stress in rostral ventrolateral medulla underlies fatal intoxication induced by organophosphate mevinphos. Toxicol Sci 2013; 135:202-17. [PMID: 23824088 DOI: 10.1093/toxsci/kft147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
As the most widely used pesticides in the world, fatal incidence of suicidal poisoning by organophosphate compounds is high and is often associated with cardiovascular toxicity. Using the pesticide mevinphos as our tool, we investigated the roles of oxidative stress and nitrosative stress at the rostral ventrolateral medulla (RVLM), the brain stem site that maintains arterial pressure (AP) and sympathetic vasomotor tone, in the cardiovascular depressive effects of organophosphate poisons. Microinjection of mevinphos (10 nmol) into the RVLM of anesthetized Sprague-Dawley rats induced progressive hypotension that was accompanied by an increase (phase I), followed by a decrease (phase II) of an experimental index of baroreflex-mediated sympathetic vasomotor tone, with a fatality rate of 35%. During phase I, there was a preferential upregulation of angiotensin type I receptor (AT1R) messenger RNA (mRNA) and protein that leads to activation of NADPH oxidase (Nox) and increase in superoxide at the RVLM. Pharmacological antagonism of these signals exacerbated fatality and shorted survival time by eliminating baroreflex-mediated sympathetic vasomotor tone, AP, and heart rate. During phase II, there was a progressive upregulation of angiotensin type II receptor (AT2R) mRNA and protein that leads to increase in peroxynitrite in the RVLM, blockade of both sustained brain stem cardiovascular regulation and improved survival. We further found that AT1R and AT2R cross-interacted at transcriptional and signaling levels in the RVLM. We conclude that a transition from AT1R-mediated oxidative stress to AT2R-mediated nitrosative stress in the RVLM underlies the shift from sustained to impaired brain stem cardiovascular regulation that underpins cardiovascular fatality during mevinphos intoxication.
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Affiliation(s)
- Faith C H Li
- Center for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan, Republic of China
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