ADP is a vasodilator component from Lasiodora sp. mygalomorph spider venom

Members of the spider genus Lasiodora are widely distributed in Brazil, where they are commonly known as caranguejeiras. Lasiodora spider venom is slightly harmful to humans. The bite of this spider causes local pain, edema and erythema. However, Lasiodora sp. spider venom may be a source of importa...

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Veröffentlicht in:Toxicon (Oxford) 2013-09, Vol.72, p.102-112
Hauptverfasser: Horta, C.C., Rezende, B.A., Oliveira-Mendes, B.B.R., Carmo, A.O., Capettini, L.S.A., Silva, J.F., Gomes, M.T., Chávez-Olórtegui, C., Bravo, C.E.S., Lemos, V.S., Kalapothakis, E.
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container_start_page 102
container_title Toxicon (Oxford)
container_volume 72
creator Horta, C.C.
Rezende, B.A.
Oliveira-Mendes, B.B.R.
Carmo, A.O.
Capettini, L.S.A.
Silva, J.F.
Gomes, M.T.
Chávez-Olórtegui, C.
Bravo, C.E.S.
Lemos, V.S.
Kalapothakis, E.
description Members of the spider genus Lasiodora are widely distributed in Brazil, where they are commonly known as caranguejeiras. Lasiodora spider venom is slightly harmful to humans. The bite of this spider causes local pain, edema and erythema. However, Lasiodora sp. spider venom may be a source of important pharmacological tools. Our research group has described previously that Lasiodora sp. venom produces bradycardia in the isolated rat heart. In the present work, we sought to evaluate the vascular effect of Lasiodora sp. venom and to isolate the vasoactive compounds from the venom. The results showed that Lasiodora spider venom induced a concentration-dependent vasodilation in rat aortic rings, which was dependent on the presence of a functional endothelium and abolished by the nitric oxide synthase (NOS) inhibitor L-NAME. Western blot experiments revealed that the venom also increased endothelial NOS function by increasing phosphorylation of the Ser1177 residue. Assay-directed fractionation isolated a vasoactive fraction from Lasiodora sp. venom. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) assays identified a mixture of two compounds: adenosine diphosphate (ADP, approximately 90%) and adenosine monophosphate (AMP, approximately 10%). The vasodilator effects of Lasiodora sp. whole venom, as well as ADP, were significantly inhibited by suramin, which is a purinergic P2-receptor antagonist. Therefore, the results of the present work indicate that ADP is a main vasodilator component of Lasiodora sp. spider venom. •Lasiodora mygalomorph spider venom caused a pronounced concentration-dependent vasodilator response in isolated rat aorta.•The vasodilator effects of Lasiodora sp. venom on the rat aorta were endothelium and nitric oxide-dependent.•ADP is a main vasodilator component from Lasiodora sp. venom.
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Lasiodora spider venom is slightly harmful to humans. The bite of this spider causes local pain, edema and erythema. However, Lasiodora sp. spider venom may be a source of important pharmacological tools. Our research group has described previously that Lasiodora sp. venom produces bradycardia in the isolated rat heart. In the present work, we sought to evaluate the vascular effect of Lasiodora sp. venom and to isolate the vasoactive compounds from the venom. The results showed that Lasiodora spider venom induced a concentration-dependent vasodilation in rat aortic rings, which was dependent on the presence of a functional endothelium and abolished by the nitric oxide synthase (NOS) inhibitor L-NAME. Western blot experiments revealed that the venom also increased endothelial NOS function by increasing phosphorylation of the Ser1177 residue. Assay-directed fractionation isolated a vasoactive fraction from Lasiodora sp. venom. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) assays identified a mixture of two compounds: adenosine diphosphate (ADP, approximately 90%) and adenosine monophosphate (AMP, approximately 10%). The vasodilator effects of Lasiodora sp. whole venom, as well as ADP, were significantly inhibited by suramin, which is a purinergic P2-receptor antagonist. Therefore, the results of the present work indicate that ADP is a main vasodilator component of Lasiodora sp. spider venom. •Lasiodora mygalomorph spider venom caused a pronounced concentration-dependent vasodilator response in isolated rat aorta.•The vasodilator effects of Lasiodora sp. venom on the rat aorta were endothelium and nitric oxide-dependent.•ADP is a main vasodilator component from Lasiodora sp. venom.</description><identifier>ISSN: 0041-0101</identifier><identifier>EISSN: 1879-3150</identifier><identifier>DOI: 10.1016/j.toxicon.2013.06.006</identifier><identifier>PMID: 23792453</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>adenosine diphosphate ; Adenosine Diphosphate - chemistry ; Adenosine Diphosphate - pharmacology ; Adenosine monophosphate ; Adenosine Monophosphate - chemistry ; ADP ; Animals ; antagonists ; Araneae ; Assaying ; Blotting, Western ; Brazil ; Chemical Fractionation ; edema ; endothelial nitric oxide synthase ; Endothelium ; Endothelium - drug effects ; erythema ; fractionation ; heart ; humans ; In Vitro Techniques ; Inhibitors ; Lasiodora ; Mass Spectrometry ; NG-Nitroarginine Methyl Ester - metabolism ; Nitric oxide ; Nitric Oxide Synthase - metabolism ; Nuclear magnetic resonance ; nuclear magnetic resonance spectroscopy ; Nuclear Magnetic Resonance, Biomolecular ; pain ; Phosphorylation ; Phosphorylation - drug effects ; Rats ; Spider ; Spider Venoms - chemistry ; Spiders ; Spiders - chemistry ; suramin ; Suramin - chemistry ; Vasodilation ; Vasodilation - drug effects ; Vasodilator Agents - chemistry ; Vasodilator Agents - pharmacology ; Venom ; venoms ; Western blotting</subject><ispartof>Toxicon (Oxford), 2013-09, Vol.72, p.102-112</ispartof><rights>2013</rights><rights>Copyright © 2013 The Authors. 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Lasiodora spider venom is slightly harmful to humans. The bite of this spider causes local pain, edema and erythema. However, Lasiodora sp. spider venom may be a source of important pharmacological tools. Our research group has described previously that Lasiodora sp. venom produces bradycardia in the isolated rat heart. In the present work, we sought to evaluate the vascular effect of Lasiodora sp. venom and to isolate the vasoactive compounds from the venom. The results showed that Lasiodora spider venom induced a concentration-dependent vasodilation in rat aortic rings, which was dependent on the presence of a functional endothelium and abolished by the nitric oxide synthase (NOS) inhibitor L-NAME. Western blot experiments revealed that the venom also increased endothelial NOS function by increasing phosphorylation of the Ser1177 residue. Assay-directed fractionation isolated a vasoactive fraction from Lasiodora sp. venom. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) assays identified a mixture of two compounds: adenosine diphosphate (ADP, approximately 90%) and adenosine monophosphate (AMP, approximately 10%). The vasodilator effects of Lasiodora sp. whole venom, as well as ADP, were significantly inhibited by suramin, which is a purinergic P2-receptor antagonist. Therefore, the results of the present work indicate that ADP is a main vasodilator component of Lasiodora sp. spider venom. •Lasiodora mygalomorph spider venom caused a pronounced concentration-dependent vasodilator response in isolated rat aorta.•The vasodilator effects of Lasiodora sp. venom on the rat aorta were endothelium and nitric oxide-dependent.•ADP is a main vasodilator component from Lasiodora sp. venom.</description><subject>adenosine diphosphate</subject><subject>Adenosine Diphosphate - chemistry</subject><subject>Adenosine Diphosphate - pharmacology</subject><subject>Adenosine monophosphate</subject><subject>Adenosine Monophosphate - chemistry</subject><subject>ADP</subject><subject>Animals</subject><subject>antagonists</subject><subject>Araneae</subject><subject>Assaying</subject><subject>Blotting, Western</subject><subject>Brazil</subject><subject>Chemical Fractionation</subject><subject>edema</subject><subject>endothelial nitric oxide synthase</subject><subject>Endothelium</subject><subject>Endothelium - drug effects</subject><subject>erythema</subject><subject>fractionation</subject><subject>heart</subject><subject>humans</subject><subject>In Vitro Techniques</subject><subject>Inhibitors</subject><subject>Lasiodora</subject><subject>Mass Spectrometry</subject><subject>NG-Nitroarginine Methyl Ester - metabolism</subject><subject>Nitric oxide</subject><subject>Nitric Oxide Synthase - metabolism</subject><subject>Nuclear magnetic resonance</subject><subject>nuclear magnetic resonance spectroscopy</subject><subject>Nuclear Magnetic Resonance, Biomolecular</subject><subject>pain</subject><subject>Phosphorylation</subject><subject>Phosphorylation - drug effects</subject><subject>Rats</subject><subject>Spider</subject><subject>Spider Venoms - chemistry</subject><subject>Spiders</subject><subject>Spiders - chemistry</subject><subject>suramin</subject><subject>Suramin - chemistry</subject><subject>Vasodilation</subject><subject>Vasodilation - drug effects</subject><subject>Vasodilator Agents - chemistry</subject><subject>Vasodilator Agents - pharmacology</subject><subject>Venom</subject><subject>venoms</subject><subject>Western blotting</subject><issn>0041-0101</issn><issn>1879-3150</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkE1v1DAQhi0EokvhJ7T1sZeEcRw78QlVbfnSSiBBz5YTj1uvkjjY2RX993jZba9wskZ65vU7DyFnDEoGTL7flEv47fswlRUwXoIsAeQLsmJtowrOBLwkK4CaFZDxE_ImpQ0A8FbJ1-Sk4o2qasFX5OvVzXfqEzV0Z1KwfjBLiLQP4xwmnBbqYhjp2iQfbIiGprmk4-O9GcIY4vyQZ28x0h1OYXxLXjkzJHx3fE_J3cfbn9efi_W3T1-ur9ZFX_NqKbjgnRXCNqyubGWtVBadE6rLhTrZiBY7myuDcs6h5RlUreE831wJYyTnp-TykDvH8GuLadGjTz0Og5kwbJNmUqq2EcDr_0Frptq23aPigPYxpBTR6Tn60cRHzUDvjeuNPhrXe-MapM7G89758YttN6J93npSnIGLA-BM0OY--qTvfuQEATlUNX8P-nAgMFvbeYw69R6nHq2P2C_aBv-PEn8AxR6dHw</recordid><startdate>201309</startdate><enddate>201309</enddate><creator>Horta, C.C.</creator><creator>Rezende, B.A.</creator><creator>Oliveira-Mendes, B.B.R.</creator><creator>Carmo, A.O.</creator><creator>Capettini, L.S.A.</creator><creator>Silva, J.F.</creator><creator>Gomes, M.T.</creator><creator>Chávez-Olórtegui, C.</creator><creator>Bravo, C.E.S.</creator><creator>Lemos, V.S.</creator><creator>Kalapothakis, E.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U7</scope><scope>C1K</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>201309</creationdate><title>ADP is a vasodilator component from Lasiodora sp. mygalomorph spider venom</title><author>Horta, C.C. ; 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Mass spectrometry (MS) and nuclear magnetic resonance (NMR) assays identified a mixture of two compounds: adenosine diphosphate (ADP, approximately 90%) and adenosine monophosphate (AMP, approximately 10%). The vasodilator effects of Lasiodora sp. whole venom, as well as ADP, were significantly inhibited by suramin, which is a purinergic P2-receptor antagonist. Therefore, the results of the present work indicate that ADP is a main vasodilator component of Lasiodora sp. spider venom. •Lasiodora mygalomorph spider venom caused a pronounced concentration-dependent vasodilator response in isolated rat aorta.•The vasodilator effects of Lasiodora sp. venom on the rat aorta were endothelium and nitric oxide-dependent.•ADP is a main vasodilator component from Lasiodora sp. venom.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>23792453</pmid><doi>10.1016/j.toxicon.2013.06.006</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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subjects adenosine diphosphate
Adenosine Diphosphate - chemistry
Adenosine Diphosphate - pharmacology
Adenosine monophosphate
Adenosine Monophosphate - chemistry
ADP
Animals
antagonists
Araneae
Assaying
Blotting, Western
Brazil
Chemical Fractionation
edema
endothelial nitric oxide synthase
Endothelium
Endothelium - drug effects
erythema
fractionation
heart
humans
In Vitro Techniques
Inhibitors
Lasiodora
Mass Spectrometry
NG-Nitroarginine Methyl Ester - metabolism
Nitric oxide
Nitric Oxide Synthase - metabolism
Nuclear magnetic resonance
nuclear magnetic resonance spectroscopy
Nuclear Magnetic Resonance, Biomolecular
pain
Phosphorylation
Phosphorylation - drug effects
Rats
Spider
Spider Venoms - chemistry
Spiders
Spiders - chemistry
suramin
Suramin - chemistry
Vasodilation
Vasodilation - drug effects
Vasodilator Agents - chemistry
Vasodilator Agents - pharmacology
Venom
venoms
Western blotting
title ADP is a vasodilator component from Lasiodora sp. mygalomorph spider venom
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