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El-Benna J, Hurtado-Nedelec M, Gougerot-Pocidalo MA, Dang PMC. Effects of venoms on neutrophil respiratory burst: a major inflammatory function. J Venom Anim Toxins Incl Trop Dis 2021; 27:e20200179. [PMID: 34249119 PMCID: PMC8237995 DOI: 10.1590/1678-9199-jvatitd-2020-0179] [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: 12/10/2020] [Accepted: 03/01/2021] [Indexed: 11/24/2022] Open
Abstract
Neutrophils play a pivotal role in innate immunity and in the inflammatory
response. Neutrophils are very motile cells that are rapidly recruited to the
inflammatory site as the body first line of defense. Their bactericidal activity
is due to the release into the phagocytic vacuole, called phagosome, of several
toxic molecules directed against microbes. Neutrophil stimulation induces
release of this arsenal into the phagosome and induces the assembly at the
membrane of subunits of the NAPDH oxidase, the enzyme responsible for the
production of superoxide anion that gives rise to other reactive oxygen species
(ROS), a process called respiratory burst. Altogether, they are responsible for
the bactericidal activity of the neutrophils. Excessive activation of
neutrophils can lead to extensive release of these toxic agents, inducing tissue
injury and the inflammatory reaction. Envenomation, caused by different animal
species (bees, wasps, scorpions, snakes etc.), is well known to induce a local
and acute inflammatory reaction, characterized by recruitment and activation of
leukocytes and the release of several inflammatory mediators, including
prostaglandins and cytokines. Venoms contain several molecules such as enzymes
(phospholipase A2, L-amino acid oxidase and proteases, among others) and
peptides (disintegrins, mastoporan, parabutoporin etc.). These molecules are
able to stimulate or inhibit ROS production by neutrophils. The present review
article gives a general overview of the main neutrophil functions focusing on
ROS production and summarizes how venoms and venom molecules can affect this
function.
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Affiliation(s)
- Jamel El-Benna
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
| | - Margarita Hurtado-Nedelec
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France.,AP-HP, Centre Hospitalier Universitaire Xavier Bichat, UF Dysfonctionnements Immunitaires, Paris, France
| | - Marie-Anne Gougerot-Pocidalo
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France.,AP-HP, Centre Hospitalier Universitaire Xavier Bichat, UF Dysfonctionnements Immunitaires, Paris, France
| | - Pham My-Chan Dang
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
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Ward MJ, Ellsworth SA, Nystrom GS. A global accounting of medically significant scorpions: Epidemiology, major toxins, and comparative resources in harmless counterparts. Toxicon 2018; 151:137-155. [DOI: 10.1016/j.toxicon.2018.07.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/25/2018] [Accepted: 07/05/2018] [Indexed: 01/18/2023]
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Khemili D, Valenzuela C, Laraba-Djebari F, Hammoudi-Triki D. Differential effect of Androctonus australis hector venom components on macrophage K V channels: electrophysiological characterization. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2018; 48:1-13. [PMID: 30006779 DOI: 10.1007/s00249-018-1323-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/28/2018] [Accepted: 07/09/2018] [Indexed: 12/14/2022]
Abstract
Neurotoxins of scorpion venoms modulate ion channels. Voltage-gated potassium (KV) channels regulate the membrane potential and are involved in the activation and proliferation of immune cells. Macrophages are key components of the inflammatory response induced by scorpion venom. The present study was undertaken to investigate the effect of Androctonus australis hector (Aah) venom on KV channels in murine resident peritoneal macrophages. The cytotoxicity of the venom was assessed using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) -based assay and electrophysiological recordings were performed using the whole-cell patch clamp technique. High doses of Aah venom (50, 125, 250 and 500 µg/ml) significantly decreased cell viability, while concentrations of 0.1-25 µg/ml were not cytotoxic towards peritoneal macrophages. Electrophysiological data revealed a differential block of KV current between resting and LPS-activated macrophages. Aah venom significantly reduced KV current amplitude by 62.5 ± 4.78% (n = 8, p < 0.05), reduced the use-dependent decay of the current, decreased the degree of inactivation and decelerated the inactivation process of KV current in LPS-activated macrophages. Unlike cloned KV1.5 channels, Aah venom exerted a similar blocking effect on KV1.3 compared to KV current in LPS-activated macrophages, along with a hyperpolarizing shift in the voltage dependence of KV1.3 inactivation, indicating a direct mechanism of current inhibition by targeting KV1.3 subunits. The obtained results, demonstrating that Aah venom differentially targets KV channels in macrophages, suggest differential outcomes for their inhibitions, and that further investigations of scorpion venom immunomodulatory potential are required.
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Affiliation(s)
- Dalila Khemili
- Laboratory of Cellular and Molecular Biology, Faculty of Biological Sciences, USTHB, BP 32, El Alia, Bab Ezzouar, 16111, Algiers, Algeria
| | - Carmen Valenzuela
- Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-UAM, Madrid, Spain.,Centro de Investigación Biomédica en Red. Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Fatima Laraba-Djebari
- Laboratory of Cellular and Molecular Biology, Faculty of Biological Sciences, USTHB, BP 32, El Alia, Bab Ezzouar, 16111, Algiers, Algeria.
| | - Djelila Hammoudi-Triki
- Laboratory of Cellular and Molecular Biology, Faculty of Biological Sciences, USTHB, BP 32, El Alia, Bab Ezzouar, 16111, Algiers, Algeria
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Miyamoto JG, Andrade FB, Ferraz CR, Cândido DM, Knysak I, Venancio ÉJ, Verri WA, Landgraf MA, Landgraf RG, Kwasniewski FH. A comparative study of pathophysiological alterations in scorpionism induced by Tityus serrulatus and Tityus bahiensis venoms. Toxicon 2018; 141:25-33. [DOI: 10.1016/j.toxicon.2017.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/31/2017] [Accepted: 11/18/2017] [Indexed: 12/21/2022]
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Sifi A, Adi-Bessalem S, Laraba-Djebari F. Role of angiotensin II and angiotensin type-1 receptor in scorpion venom-induced cardiac and aortic tissue inflammation. Exp Mol Pathol 2017; 102:32-40. [DOI: 10.1016/j.yexmp.2016.11.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 11/12/2016] [Accepted: 11/22/2016] [Indexed: 11/28/2022]
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Rigoni VLS, Kwasniewski FH, Vieira RP, Linhares IS, da Silva JLV, Nogueira-Pedro A, Zamuner SR. Human bronchial epithelial cells injury and cytokine production induced by Tityus serrulatus scorpion venom: An in vitro study. Toxicon 2016; 120:22-8. [PMID: 27452928 DOI: 10.1016/j.toxicon.2016.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 07/13/2016] [Accepted: 07/20/2016] [Indexed: 12/18/2022]
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Borges A, Morales M, Loor W, Delgado M. Scorpionism in Ecuador: First report of severe and fatal envenoming cases from northern Manabí by Tityus asthenes Pocock. Toxicon 2015; 105:56-61. [DOI: 10.1016/j.toxicon.2015.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/13/2015] [Accepted: 08/26/2015] [Indexed: 02/08/2023]
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Maciel MC, Fialho EM, Guerra RN, Borges VM, Kwasniewski FH, Nascimento FR. Tityus serrulatus scorpion venom improves survival and lung inflammation in lethal sepsis induced by CLP in mice. Toxicon 2014; 89:1-8. [DOI: 10.1016/j.toxicon.2014.06.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/11/2014] [Accepted: 06/19/2014] [Indexed: 01/22/2023]
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Lamraoui A, Adi-Bessalem S, Laraba-Djebari F. Modulation of Tissue Inflammatory Response by Histamine Receptors in Scorpion Envenomation Pathogenesis: Involvement of H4 Receptor. Inflammation 2014; 37:1689-704. [DOI: 10.1007/s10753-014-9898-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Trejo E, Borges A, Nañez B, Lippo de Becemberg I, González de Alfonzo R, Alfonzo MJ. Tityus zulianus venom induces massive catecholamine release from PC12 cells and in a mouse envenomation model. Toxicon 2012; 59:117-23. [DOI: 10.1016/j.toxicon.2011.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 10/22/2011] [Accepted: 10/27/2011] [Indexed: 10/15/2022]
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Adi-Bessalem S, Mendil A, Hammoudi-Triki D, Laraba-Djebari F. Lung Immunoreactivity and Airway Inflammation: Their Assessment After Scorpion Envenomation. Inflammation 2011; 35:501-8. [DOI: 10.1007/s10753-011-9338-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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