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<front>
<journal-meta>
<journal-id>2072-9294</journal-id>
<journal-title><![CDATA[Journal of the Selva Andina Research Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Selva Andina Res. Soc.]]></abbrev-journal-title>
<issn>2072-9294</issn>
<publisher>
<publisher-name><![CDATA[Órgano oficial de la:SELVA ANDINA RESEARCH SOCIETY]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2072-92942019000200005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Avances científicos del veneno de escorpión]]></article-title>
<article-title xml:lang="en"><![CDATA[Scientific advances of scorpion venom]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Delgado]]></surname>
<given-names><![CDATA[Orlando*]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Católica Santo Toribio de Mogrovejo Universidad Católica Santo Toribio de Mogrovejo ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>2</numero>
<fpage>105</fpage>
<lpage>108</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_arttext&amp;pid=S2072-92942019000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_abstract&amp;pid=S2072-92942019000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_pdf&amp;pid=S2072-92942019000200005&amp;lng=en&amp;nrm=iso"></self-uri><kwd-group>
<kwd lng="es"><![CDATA[Veneno]]></kwd>
<kwd lng="es"><![CDATA[escorpión]]></kwd>
<kwd lng="es"><![CDATA[péptidos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana" size="2"><b>Carta Científica</b></font></p>     <p align="right">&nbsp;</p>     <p align="center"><b><font face="Verdana" size="4">Avances científicos del veneno de escorpión</font></b></p>     <p align="center">&nbsp;</p>     <p align="center"><b><font face="Verdana" size="3">Scientific advances of scorpion venom</font></b></p>     <p align="center">&nbsp;</p>     <p align="center">&nbsp;</p>     <p align="center"><b><font face="Verdana" size="2">Pérez-Delgado Orlando<b><sup>*</sup></b></font></b></p>     <p align="center"><font face="Verdana" size="2">Universidad Católica Santo Toribio de</font> <font face="Verdana" size="2">Mogrovejo.</font> <font face="Verdana" size="2">Laboratorio     Multidisciplinario     de Investigación.</font>    <br> <font face="Verdana" size="2">Facultad de Medicina. Laboratorio de Microbiología.</font> <font face="Verdana" size="2">Av.   San  Josemaría  Escrivá  N&deg;855.</font>    ]]></body>
<body><![CDATA[<br> <font face="Verdana" size="2">Chiclayo-Perú.</font> <font face="Verdana" size="2">Tel: (074) 606200.</font> <font face="Verdana" size="2">Movil:+51950630134.</font></p>     <p align="center"><font face="Verdana" size="2"><b>*Dirección de contacto:</b></font> <font face="Verdana" size="2"><b>Orlando Pérez-Delgado</b></font></p>     <p align="center"><font face="Verdana" size="2">E-mail address: <a href="mailto:operezd@gmail.com">operezd@gmail.com</a></font>     <br> <font size="2"><a href="mailto:operez@usat.edu.pe"><font face="Verdana">operez@usat.edu.pe</font></a></font></p>     <p align="center"><font face="Verdana" size="2"><b>Historial del artículo.</b></font></p>     <p align="center"><font face="Verdana" size="2">Recibido Abril 2019.    <br> Devuelto Mayo 2019    <br> Aceptado Mayo 2019.    <br> Disponible en línea Agosto 2019.</font></p>     <p align="center">&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center">&nbsp;</p> <hr align="JUSTIFY">     <p align="justify"><font face="Verdana" size="2"><b>Palabras clave:</b></font> <font face="Verdana" size="2">Veneno,</font> <font face="Verdana" size="2">escorpi&oacute;n,</font> <font face="Verdana" size="2">p&eacute;ptidos.</font></p> <hr align="center">     <p align="justify">&nbsp;</p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="Verdana" size="3"><b>Sr. Editor.</b></font></p>     <p align="justify"><font face="Verdana" size="2">Hasta el momento, se han descrito aproximadamente 2000 especies de escorpiones, distribuidas en todo el mundo y estos se dividen en dos grupos, los escorpiones del viejo mundo y se distribuyen esencialmente en &Aacute;frica, Asia y Am&eacute;rica del Sur, se agrupan en una sola familia, las especies agrupadas de la familia Buthidae con estern&oacute;n de forma triangular, en cambio los del nuevo mundo con un estern&oacute;n de forma pentagonal, est&aacute;n muy dispersos en Europa, Asia y Am&eacute;rica.<sup>1,2</sup> Estos ar&aacute;cnidos se clasifican en siete familias: Scorpionidae, Diplocentridae, Chactidae, Vaejovidae, Bothriuridae, Chaerilidae y Buthidae.<sup>3</sup></font></p>     <p align="justify"><font face="Verdana" size="2">Estos animales venenosos son famosos solo por sus efectos adversos causados por la interacci&oacute;n accidental con humanos y transmiten una variedad de toxinas perjudiciales con diversas actividades fisiol&oacute;gicas que pueden llevar a s&iacute;ntomas menores como la dermatitis y las respuestas al&eacute;rgicas o s&iacute;ntomas muy graves como las enfermedades de la coagulaci&oacute;n, la coagulaci&oacute;n intravascular diseminada y la hemorragia.<sup>4</sup></font></p>     <p align="justify"><font face="Verdana" size="2">Las toxinas producidas por los escorpiones han llamado desde hace mucho tiempo la atenci&oacute;n de los investigadores por sus propiedades terap&eacute;uticas como se reporta del escorpi&oacute;n azul cubano de la especie <i>Rhopalurus junceus </i>que es empleado en la terapia anticancer&iacute;gena<sup>5,6</sup> y varios estudios coinciden en que el veneno del escorpi&oacute;n es una mezcla compuesta por varios p&eacute;ptidos de diferente peso molecular que son considerados como los compuestos bioactivos por tener actividad de inhibir el crecimiento o proliferaci&oacute;n de bacterias, hongos, c&eacute;lulas cancer&iacute;genas.<sup>6,7,</sup><sup>8</sup></font></p>     <p align="justify"><font face="Verdana" size="2">En la actualidad se cuentan con amplios estudios y publicaciones de p&eacute;ptidos con actividad antibacteriana, antif&uacute;ngica, antimal&aacute;rica e inclusive a nivel gen&oacute;mico con la finalidad buscar s&iacute;ntesis, como tambi&eacute;n la variaci&oacute;n en su estructura qu&iacute;mica para evaluar su capacidad antimicrobiana.</font></p>     <p align="justify"><font face="Verdana" size="2">Lo concerniente al mecanismo de acci&oacute;n de estos p&eacute;ptidos, usualmente son dirigidos hacia mol&eacute;culas intracelulares y formando poros en las membranas bacterianas mediante varias v&iacute;as de se&ntilde;alizaci&oacute;n y para estas razones ha sido propuesta que su uso har&iacute;a m&aacute;s dif&iacute;cil para la bacteria llegar a ser resistente al tratamiento. Hay tres diferentes propuestas moleculares de mecanismos de acci&oacute;n para estos p&eacute;ptidos: el modelo alfombra, modelo</font><font face="Verdana" size="2"> barril, modelo anular.<sup>9-12</sup></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="Verdana" size="2">Hoy en d&iacute;a se sabe que a trav&eacute;s del Instituto de Biotecnolog&iacute;a de la Universidad Nacional Aut&oacute;noma de M&eacute;xico y, un grupo de investigaci&oacute;n liderado por el Dr. Lourival Possani, han aislado y patentado un p&eacute;ptido denominado Hadrurina del escorpi&oacute;n <i>Hadrurus aztecus </i>con actividad bactericida sobre un gran n&uacute;mero de microorganismos de importancia cl&iacute;nica tales como <i>Escherichia coli, Enterococcus cloacae, Klebsiella pneumoniae, Salmonella typhiy Pseudomonas aeruginosa<sup>13</sup>, </i>adem&aacute;s por otro lado se ha reportado de un escorpi&oacute;n asi&aacute;tico <i>Scorpiops tibetanus </i>del p&eacute;ptido StCT2 con efecto frente a <i>Staphylococcus aureus, </i>incluyendo cepas resistentes a los antibi&oacute;ticos como a la meticilina (MRSA).<sup>14</sup></font></p>     <p align="justify"><font face="Verdana" size="2">Inclusive a partir del veneno de la especie <i>Pandinus imperator, </i>tambi&eacute;n se ha reportado del p&eacute;ptido denominado escorpina con capacidad inhibitoria frente a etapas sexuales de ooquinetos y gametos de <i>Plasmodium berghei<sup>15</sup>, </i>como tambi&eacute;n del veneno de <i>Tityus </i>gonzalespongai con acci&oacute;n leishmanicida sobre promastigotes de <i>Leishmania mexicana.<sup>16</sup></i></font></p>     <p align="justify"><font face="Verdana" size="2">En los &uacute;ltimos a&ntilde;os, diferentes enfoques como las &quot;&oacute;micas&quot; se han convertido en una herramienta muy poderosa para la comprensi&oacute;n de la complejidad de animales venenosos, utilizando t&eacute;cnicas de biolog&iacute;a molecular, tales como RT-PCR, ADNc se ha amplificado a partir de ARNm total purificado de telsones (&uacute;ltimo segmento del postabdomen de los escorpiones) macerados. A partir de este ADNc varios precursores de secuencias de p&eacute;ptidos han sido identificados, con el uso de oligonucle&oacute;tidos cuyas secuencias se obtuvieron a partir de secuencias de p&eacute;ptidos conocidos, obtenidos mediante la degradaci&oacute;n de Edman. Es as&iacute; que tiene como ejemplo a los genes que codifican para los precursores pept&iacute;dicos antimicrobianos denominados VmCT1, VmCT2, VsCT1 y VsCT2 se clonaron y secuenciaron a partir de los bancos de ADNc preparados a partir de las gl&aacute;ndulas de veneno de las especies de escorpi&oacute;n Mexicanos <i>Vaejovis mexicanus smithi </i>y <i>Vaejovis subcristatus </i>y en otro estudio tambi&eacute;n se ha clonado y aislado un gen nuevo para el p&eacute;ptido antimicrobiano, denominado StCT1, de la biblioteca de ADNc de la gl&aacute;ndula venenosa del escorpi&oacute;n 5. <i>tibetanus </i>que posee actividad inhibidora del crecimiento contra las bacterias Gram-positivas, pero no bacterias gram negativas.<sup>17-19</sup></font></p>     <p align="justify"><font face="Verdana" size="2">En resumen, el veneno de escorpi&oacute;n se considera una alternativa a la terapia anticancer&iacute;gena y antimicrobiana, posee una amplia variedad de p&eacute;ptidos de diferente peso molecular, estructura qu&iacute;mica variable y por &uacute;ltimo a trav&eacute;s de herramientas de biolog&iacute;a molecular se pueden construir genotecas de las gl&aacute;ndulas de los escorpiones, con la finalidad de potenciar su actividad a trav&eacute;s de las modificaciones de sus secuencias aminoac&iacute;dicas.</font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="Verdana" size="3"><b>Conflictos de intereses</b></font></p>     <p align="justify"><font face="Verdana" size="2">El autor declara no tener ningún conflicto de intereses. Declaro no haber recibido ningún tipo de financiación pública y/o privada para la realización del presente manuscrito.</font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="Verdana" size="3"><b>Agradecimientos</b></font></p>     <p align="justify"><font face="Verdana" size="2">El autor agradece al Dr. Manuel Loza-Murguía Director y Editor en Jefe de la Journal of the Selva Andina Research Society, por su aceptación para la publicación sobre Avances Científicos del veneno del escorpión, por su valioso aporte a la revisión de este manuscrito.</font></p>     ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>     <p align="justify"><font face="Verdana" size="3"><b>Literatura citada</b></font></p>     <!-- ref --><p align="justify"><font size="2" face="Verdana">1.&nbsp; Hmed B, Sema HT, Mounir ZK.  Scorpion peptides:    potential    use    for    new    drug development. J Toxicol 2013; (2013):958797. DOI: <a href="http://dx.doi.org/10.1155/2013/958797" target="_blank">http://dx.doi.org/10.1155/2013/958797</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=163236&pid=S2072-9294201900020000500001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="Verdana" size="2">2.&nbsp; Cordeiro  FA,  Amorim  FG,  Anjolette  FA, Arantes EC. 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Indian J Mar Sci 2018;47(04):773-8.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=163239&pid=S2072-9294201900020000500004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="Verdana" size="2">5.&nbsp; García   Gómez   BI,   Coronas   FI,   Restano Cassulini   R,   Rodríguez   RR,   Possani   LD. Biochemical and molecular characterization of the venom from the Cuban scorpion <i>Rhopa lurus junceus </i>Toxicon 2011;58(1):18-27. 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DOI: <a href="https://dx.doi.org/10.1016/j.toxicon.2014.06.006" target="_blank">https://dx.doi.org/10.1016/j.toxicon.2014.06.006</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=163243&pid=S2072-9294201900020000500008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="Verdana" size="2">9.&nbsp; Brogden  KA.  Antimicrobial  peptides:   pore formers or metabolic inhibitors in bacteria. Nat Rev Microbiol 2005;3(3):238-50. 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DOI: <a href="https://dx.doi.org/10.1007/s00018-008-8188-x" target="_blank">https://dx.doi.org/10.1007/s00018-008-8188-x</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=163247&pid=S2072-9294201900020000500012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="Verdana" size="2">13.&nbsp; Torres Larios A, Gurrola GB, Zamudio FZ, Possani LD. Hadrurin, a new antimicrobial peptide from the venom of the scorpion <i>Hadrurus aztecus. </i>Eur J Biochem 2000;267(16):5023-31. 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<label>19.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
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<given-names><![CDATA[P]]></given-names>
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<article-title xml:lang="en"><![CDATA[Cloning and functional characterization of a new antimicrobial peptide gene StCT1 from the venom of the scorpion Scorpiops tibetanus.]]></article-title>
<source><![CDATA[Peptides]]></source>
<year>2010</year>
<volume>31</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>22-6</page-range></nlm-citation>
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