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Affinity descubre anticuerpos potentes para SARS-CoV-2
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Affinity Biosciences logo

News provided by

Affinity Biosciences

Jul 02, 2020, 05:14 ET

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MELBOURNE, Australia, 2 de julio de 2020 /PRNewswire/ -- Con sede en Melbourne, Affinity Biosciences Pty Ltd (Affinity), una compañía privada centrada en el descubrimiento de anticuerpos para terapias contra el cáncer, ha anunciado hoy el descubrimiento de potentes anticuerpos con potencial terapéutico contra la COVID-19.

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Affinity Biosciences antibody binding to the SARS-CoV-2 virus spike protein.
Affinity Biosciences antibody binding to the SARS-CoV-2 virus spike protein.

En marzo, Affinity comenzó la exploración de su biblioteca documentada de cien mil millones de anticuerpos para descubrir los que podrían neutralizar el SARS-CoV-2, el virus causante de la COVID-19. Tras descubrir varios anticuerpos candidatos que bloquean la proteína spike del virus frente a su vinculación al receptor humano, Affinity se dirigió al Peter Doherty Institute for Infection and Immunity (Doherty Institute) en abril de cara a llevar a cabo pruebas utilizando el virus en el laboratorio. El Doherty Institute ha confirmado que los anticuerpos de Affinity pueden neutralizar por completo la infección de SARS-CoV-2 en un microgramo de una sola cifra/concentración ml en ensayos de neutralización de virus de cinco días. Los anticuerpos presentan una elevada afinidad para la proteína spike de SARS-CoV-2 de unos 20 picomolar, impulsada por una tasa muy baja, como medida de cómo l anticuerpo sigue enlazado a su objetivo.

"Nuestros anticuerpos se adhieren a la proteína spike del virus y bloquean su actividad", comentó el doctor Peter Smith, consejero delegado de Affinity. "Estos anticuerpos pueden ser protectores en humano, evitando que el virus gane una posición sólida en personas sanas expuestas al virus, además de ser útiles en detener el progreso del virus en una persona infectada bloqueando su capacidad para infectar nuevas células y replicarse".

Una terapia altamente efectiva permitiría llevar a cabo de forma más rápida una vida normal con una amenaza reducida de personas infectadas que necesiten hospitalización.

Los próximos pasos en el desarrollo de una terapia de Affinity para la COVID-19 son: 

  • Affinity buscará un proceso expeditado que permita la fabricación rápida de sus anticuerpos para con los estándares de las Good Manufacturing Practice (GMP) para ensayos clínicos.
  • Identificación de rutas de desarrollo expeditadas con agencias normativas (TGA, FDA, and EMA).
  • Hay en marcha debates con gobiernos, ONGs y compañías farmacéuticas para conseguir el desarrollo acelerado y la distribución comercial. Los anticuerpos Affinity están en un estudio comparativo llevado a cabo por el La Jolla Institute for Immunology (programa CoVIC) que cuenta con fondos de COVID-19 Therapeutics Accelerator, lanzado en marzo a través de la Bill & Melinda Gates Foundation, Wellcome Trust, Mastercard y filántropos (covic.lji.org).

Affinity es además parte de un consorcio encabezado por el Walter and Eliza Hall Institute para el desarrollo de productos biológicos contra SARS-CoV-2, habiendo recibido recientemente fondos del Gobierno de Victoria y del Medical Research Future Fund (MRFF).

Página web: affinity.bio/covid-19

Foto - https://mma.prnewswire.com/media/1170006/Affinity_Biosciences_antibody_binding_SARS_CoV_2.jpg 
Logo - https://mma.prnewswire.com/media/1170007/Affinity_Biosciences_logo_Logo.jpg

Related Links

http://affinity.bio/covid-19

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