<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2008000300008</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Diindolylmethane Derivatives as Apoptosis Inductors in L5178y Cells]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velasco-Bejarano]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Torres]]></surname>
<given-names><![CDATA[Luvia Enid]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Estrada]]></surname>
<given-names><![CDATA[José Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Ruvalcaba]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Toledano]]></surname>
<given-names><![CDATA[Cecilio]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Penieres-Carrillo]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Cuautitlán Sección Química Orgánica]]></institution>
<addr-line><![CDATA[ México]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Departamento de Inmunología]]></institution>
<addr-line><![CDATA[México D.F]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Nacional Autónoma de México Ciudad Universitaria Instituto de Química]]></institution>
<addr-line><![CDATA[México D.F]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2008</year>
</pub-date>
<volume>52</volume>
<numero>3</numero>
<fpage>224</fpage>
<lpage>228</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2008000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2008000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2008000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Cell growth and division are highly regulated processes, although a notable exception is provided by the cancer cell, which arises as a variant that has lost the usual proliferation control pathways. Consequently, there is growing interest in the search for antitu-moral substances with high efficacy, low toxicity, and minimum side effects. In this sense, we synthesize eight diindolylmethane derivatives and the in vitro antitumor activity against murine L5178Y lymphoma cells was assessed. The preliminary results showed that the substituent and its position on the phenyl group were important for its potency against the lymphoma cells tested. Compound 3a was the most active compound with 93 % cell grown inhibition and 71.04% of apoptosis.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[El crecimiento celular así como la división celular son procesos altamente regulados, sin embargo, una notable excepción son las células cancerosas, las cuales han perdido sus mecanismos de control y regulación. En consecuencia el creciente interés por la búsqueda de sustancias antitumorales con alta eficiencia, baja toxicidad y la menor cantidad de reacciones adversas, nos condujo a sintetizar una familia de ocho diindolimetanos, los cuales fueron evaluados como inductores de apoptosis. Los resultados preliminares mostraron que el sustituyente y la posición en el grupo fenilo son importantes para esta actividad. El compuesto 3a de la serie estudiada mostró ser el más activo con un 93 % de la inhibición del crecimiento celular y una inducción de apoptosis de 71.04 %.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[DIM derivatives]]></kwd>
<kwd lng="en"><![CDATA[apoptosis]]></kwd>
<kwd lng="en"><![CDATA[cytotoxic effects]]></kwd>
<kwd lng="en"><![CDATA[L5178Y cells]]></kwd>
<kwd lng="es"><![CDATA[Derivados del DIM]]></kwd>
<kwd lng="es"><![CDATA[apoptosis]]></kwd>
<kwd lng="es"><![CDATA[efecto citotóxico]]></kwd>
<kwd lng="es"><![CDATA[Células L5178Y]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Article</font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Diindolylmethane Derivatives as Apoptosis Inductors in L5178y Cells</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Benjam&iacute;n Velasco&#150;Bejarano,<sup>1</sup> Luvia Enid S&aacute;nchez&#150;Torres,<sup>2</sup> Jos&eacute; Guadalupe Garc&iacute;a&#150;Estrada,<sup>1</sup> Ren&eacute; Miranda&#150;Ruvalcaba,<sup>1</sup> Cecilio &Aacute;lvarez&#150;Toledano,<sup>3</sup> Guillermo Penieres&#150;Carrillo<sup>1*</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Facultad de Estudios Superiores Cuautitl&aacute;n, Secci&oacute;n Qu&iacute;mica Org&aacute;nica, Universidad Nacional Aut&oacute;noma de M&eacute;xico, Av. 1 de mayo S/N Cuautitl&aacute;n Izcalli, Estado de M&eacute;xico, C.P. 54740. Tel + 52 55 56232024. <sup>*</sup>Responsible author:</i> <a href="mailto:penieres@unam.mx">penieres@unam.mx</a>.</font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Escuela Nacional de Ciencias Biol&oacute;gicas, Departamento de Inmunolog&iacute;a, Instituto Polit&eacute;cnico Nacional, Carpio y Plan de Ayala, Casco de S. Tom&aacute;s, M&eacute;xico D.F. C.P. 11340, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>3</sup> Instituto de Qu&iacute;mica, Universidad Nacional Aut&oacute;noma de M&eacute;xico, Ciudad Universitaria, Circuito Exterior, M&eacute;xico D.F., C.P. 04510, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 23 junio de 2008    <br>   Aceptado el 28 de agosto de 2008</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">Cell growth and division are highly regulated processes, although a notable exception is provided by the cancer cell, which arises as a variant that has lost the usual proliferation control pathways. Consequently, there is growing interest in the search for antitu&#150;moral substances with high efficacy, low toxicity, and minimum side effects. In this sense, we synthesize eight diindolylmethane derivatives and the in vitro antitumor activity against murine L5178Y lymphoma cells was assessed. The preliminary results showed that the substituent and its position on the phenyl group were important for its potency against the lymphoma cells tested. Compound <b>3a </b>was the most active compound with 93 % cell grown inhibition and 71.04% of apoptosis.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>DIM derivatives, apoptosis, cytotoxic effects, L5178Y cells.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">El crecimiento celular as&iacute; como la divisi&oacute;n celular son procesos altamente regulados, sin embargo, una notable excepci&oacute;n son las c&eacute;lulas cancerosas, las cuales han perdido sus mecanismos de control y regulaci&oacute;n. En consecuencia el creciente inter&eacute;s por la b&uacute;squeda de sustancias antitumorales con alta eficiencia, baja toxicidad y la menor cantidad de reacciones adversas, nos condujo a sintetizar una familia de ocho diindolimetanos, los cuales fueron evaluados como inductores de apoptosis. Los resultados preliminares mostraron que el sustituyente y la posici&oacute;n en el grupo fenilo son importantes para esta actividad. El compuesto <b>3a </b>de la serie estudiada mostr&oacute; ser el m&aacute;s activo con un 93 % de la inhibici&oacute;n del crecimiento celular y una inducci&oacute;n de apoptosis de 71.04 %.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras clave: </b>Derivados del DIM, apoptosis, efecto citot&oacute;xico, C&eacute;lulas L5178Y.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/jmcs/v52n3/v52n3a8.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgements</b></font></p>     <p align="justify"><font face="verdana" size="2">We would like to thank DGAPA&#150;UNAM for their financial support to Project IN215505. S&aacute;nchez&#150;Torres Luvia has a fellowship from COFAA&#150;IPN and EDI&#150;IPN.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. Cohen, J. H.; Cristal, A. R.; Standford J. L. <i>J. Nat. 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