<?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>1025-028X</journal-id>
<journal-title><![CDATA[Vaccimonitor]]></journal-title>
<abbrev-journal-title><![CDATA[Vaccimonitor]]></abbrev-journal-title>
<issn>1025-028X</issn>
<publisher>
<publisher-name><![CDATA[Finlay Ediciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1025-028X2001000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ensayo in vitro para detectar la presencia de agentes adventicios en un banco de células de trabajo]]></article-title>
<article-title xml:lang="en"><![CDATA[In vitro assay to determine the presence of adventitious agents in a Working Cell Bank]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pardo]]></surname>
<given-names><![CDATA[Georgina]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almora]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fidalgo]]></surname>
<given-names><![CDATA[Odalys]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamora]]></surname>
<given-names><![CDATA[Arelys]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Niurka]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Ela María]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Finlay  ]]></institution>
<addr-line><![CDATA[Ciudad de La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2001</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2001</year>
</pub-date>
<volume>10</volume>
<numero>1</numero>
<fpage>17</fpage>
<lpage>21</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1025-028X2001000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1025-028X2001000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1025-028X2001000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Actualmente las colecciones de cultivos de tejidos son consideradas valiosas fuentes de material biológico para la investigación, diagnóstico y producción, sin embargo se hacen realmente útiles cuando las mismas están bien organizadas, caracterizadas y manipuladas como Bancos Celulares Maestros y de Trabajo, en dependencia de la dirección de los objetivos de trabajo. Las agencias reguladoras en todo el mundo consideran el establecimiento de Bancos Celulares Maestros y de Trabajo siguiendo las Buenas Prácticas de Fabricación vigentes y los &#8220;Puntos a Considerar en la Caracterización de Líneas Celulares utilizadas en la Producción de Biológicos&#8221;. El objetivo de este trabajo fue determinar que un Banco Celular de Trabajo (BCT) obtenido en nuestro laboratorio estaba libre de agentes adventicios, para lo cual se realizó la observación a través del microscopio óptico y electrónico para visualizar morfología y presencia de retrovirus, se verificó la ausencia de contaminación bacteriana, fúngica y de micoplasmas; además se buscó presencia de otros agentes adventicios utilizando tres sistemas de cultivo celular. La morfología de las células fue seudofibroblástica como está reportado para esta línea, el Banco Celular está exento de bacterias, hongos y micoplasmas y los resultados de la prueba de agentes extraños fueron negativos, la observación al microscopio electrónico no reveló partículas tipo A y tipo C de retrovirus. Como conclusión podemos decir que el Banco Celular de Trabajo cumple con las regulaciones establecidas y pudiera ser empleado en la producción de vacunas veterinarias.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[At present tissue culture collections are considered valuable sources of biological material for research and production, nevertheless they are really useful when they are well organized, characterized and handled as Master Cell Banks and Working Cell Banks, depending on the objectives of the work. Regulatory agencies all over the world consider that the establishment of Master Cell Banks and Working Cell Banks follows good manufacturing practices in effect and the &#8220;Points to consider in the Characterization of Cell Lines used for the Production of Biologicals&#8221;. The objective of this work was to determine if a Working Cell Bank (WCB) obtained in our laboratory was free of adventitious agents. To achieve this, optical and electronic microscopy were carried out looking for the morphology or presence of retrovirus. Absence of bacterial, fungi and micoplasma contamination was also verified. Also the presence of other adventitious agents tested using three cell culture systems. The cell morphology was pseudo fibroblastic as reported for this cell line. The Cell Bank is free of bacteria, fungi and micoplasma. The results of the test for adventitious agents were negative, electronic microscopy observation didn&#8217;t reveal type A or C retroviral particles. As a conclusion we may say that the Working Cell Bank complies with the regulations established and can be used in the production of veterinary vaccines.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Banco Celular de Trabajo]]></kwd>
<kwd lng="es"><![CDATA[BHK- 21]]></kwd>
<kwd lng="es"><![CDATA[Caracterización]]></kwd>
<kwd lng="en"><![CDATA[Working Cell Bank]]></kwd>
<kwd lng="en"><![CDATA[BHK- 21]]></kwd>
<kwd lng="en"><![CDATA[Characterization]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana" size="2"><b><font face="Verdana, Arial, Helvetica, sans-serif">ARTICULOS ORIGINALES</font></b></font></p>     <p align="right">&nbsp;</p>     <p align="right"><font size="4" face="Verdana, Arial, Helvetica, sans-serif"><strong>Ensayo in vitro para detectar la presencia de agentes    adventicios en un banco de c&eacute;lulas de trabajo.</strong></font></p>     <p align="right">&nbsp;</p>     <p align="right"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong><font size="3">In vitro assay to determine the presence of adventitious agents in a Working Cell Bank.</font>    <br> </strong></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>Georgina Pardo, Ernesto Almora, Odalys Fidalgo, Arelys Zamora, Niurka Rodr&iacute;guez y Ela Mar&iacute;a P&eacute;rez.    <br> </strong></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Instituto Finlay. Centro de Investigaci&oacute;n&ndash;Producci&oacute;n de Vacunas y Sueros. Ciudad de La Habana, Cuba.    <br>   E-mail:<a href="mailto:gpardo@finlay.edu.cu">gpardo@finlay.edu.cu</a>    ]]></body>
<body><![CDATA[<br> </font></p> <hr>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>RESUMEN </strong></font></p>     <p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Actualmente las colecciones de cultivos de tejidos son consideradas valiosas fuentes de material biol&oacute;gico para    <br>   la investigaci&oacute;n, diagn&oacute;stico y producci&oacute;n, sin embargo se hacen realmente &uacute;tiles cuando las mismas est&aacute;n bien    <br>   organizadas, caracterizadas y manipuladas como Bancos Celulares Maestros y de Trabajo, en dependencia de    <br>   la direcci&oacute;n de los objetivos de trabajo. Las agencias reguladoras en todo el mundo consideran el    <br>   establecimiento de Bancos Celulares Maestros y de Trabajo siguiendo las Buenas Pr&aacute;cticas de Fabricaci&oacute;n    <br>   vigentes y los &ldquo;Puntos a Considerar en la Caracterizaci&oacute;n de L&iacute;neas Celulares utilizadas en la Producci&oacute;n de    <br>   Biol&oacute;gicos&rdquo;. El objetivo de este trabajo fue determinar que un Banco Celular de Trabajo (BCT) obtenido en    <br>   nuestro laboratorio estaba libre de agentes adventicios, para lo cual se realiz&oacute; la observaci&oacute;n a trav&eacute;s del    ]]></body>
<body><![CDATA[<br>   microscopio &oacute;ptico y electr&oacute;nico para visualizar morfolog&iacute;a y presencia de retrovirus, se verific&oacute; la ausencia de    <br>   contaminaci&oacute;n bacteriana, f&uacute;ngica y de micoplasmas; adem&aacute;s se busc&oacute; presencia de otros agentes adventicios    <br>   utilizando tres sistemas de cultivo celular. La morfolog&iacute;a de las c&eacute;lulas fue seudofibrobl&aacute;stica como est&aacute;    <br>   reportado para esta l&iacute;nea, el Banco Celular est&aacute; exento de bacterias, hongos y micoplasmas y los resultados de    <br>   la prueba de agentes extra&ntilde;os fueron negativos, la observaci&oacute;n al microscopio electr&oacute;nico no revel&oacute; part&iacute;culas    <br>   tipo A y tipo C de retrovirus. Como conclusi&oacute;n podemos decir que el Banco Celular de Trabajo cumple con las    <br>   regulaciones establecidas y pudiera ser empleado en la producci&oacute;n de vacunas veterinarias.    <br> </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>Palabras claves:</strong> Banco Celular de Trabajo, BHK- 21, Caracterizaci&oacute;n.</font></p> <hr>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">  <strong>ABSTRACT</strong></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">  At present tissue culture collections are considered valuable sources of biological material for research and production,   nevertheless they are really useful when they are well organized, characterized and handled as Master Cell Banks and    Working Cell Banks, depending on the objectives of the work. Regulatory agencies all over the world consider that the    establishment of Master Cell Banks and Working Cell Banks follows good manufacturing practices in effect and the &ldquo;Points    to consider in the Characterization of Cell Lines used for the Production of Biologicals&rdquo;. The objective of this work was to    determine if a Working Cell Bank (WCB) obtained in our laboratory was free of adventitious agents. To achieve this,   optical and electronic microscopy were carried out looking for the morphology or presence of retrovirus. Absence of    bacterial, fungi and micoplasma contamination was also verified. Also the presence of other adventitious agents tested    using three cell culture systems. The cell morphology was pseudo fibroblastic as reported for this cell line. The Cell Bank    is free of bacteria, fungi and micoplasma. The results of the test for adventitious agents were negative, electronic    <br>   microscopy observation didn&rsquo;t reveal type A or C retroviral particles. As a conclusion we may say that the Working Cell    Bank complies with the regulations established and can be used in the production of veterinary vaccines.    <br> </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>Keywords:</strong> Working Cell Bank, BHK- 21, Characterization.</font></p> <hr>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Texto completo en pdf</font></p>     <P  ALIGN="JUSTIFY"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><B>REFERENCIAS</B> </font>     <!-- ref --><P ALIGN="JUSTIFY"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">1. Steuer A, Ostrove M. Establishing Cell Bank under Current Good Manufacturing Practices. BioPharm 1996; 9:40-44. </font>     <!-- ref --><P ALIGN="JUSTIFY"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">2. Lee CK. Issues of Biological Assays for Viral Vaccines. Dev Biol Stand 1996; 88:41-47. </font>     <P ALIGN="JUSTIFY"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">3. ATCC Quality Control Methods for Cell Lines Eds. Hay, RJ, Caputo, J, Macy, ML; 1994. </font>     <P ALIGN="JUSTIFY"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">4. ATCC Cell Lines and Hibridomas. 8&#170; Edition. Eds. Hay RJ, Caputo J, Macy ML. ATCC CCl-10. 1994; 10. </font>     ]]></body>
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