Domingo, 22 Octubre, 2017

Células madres fueron transformadas en células sanguíneas primordiales

Células madres fueron transformadas en células sanguíneas primordiales Células madres fueron transformadas en células sanguíneas primordiales
Danilo Martir | 19 May, 2017, 20:46

Dos equipos de investigadores de Estados Unidos y Reino Unido obtuvieron glóbulos rojo o células de sangre a partir de células madre hematopoyéticas (HSCs), de acuerdo a dos artículos científicos publicado en la revista Nature de esta semana. Este trabajo ofrece esperanza a las personas con leucemia y otros trastornos de la sangre que necesitan trasplantes de médula ósea, pero en los que no es posible encontrar un donante compatible. Los pacientes podrían recibir versiones cultivadas en laboratorio de sus propias células sanas. "Este trabajo es la culminación de más de 20 años de lucha", explicó George Daley, director de un laboratorio de investigación en el Programa de Células Madre del Hospital Infantil de Boston (EE UU).

Con 5 factores de transcripción clave, consiguieron crear las células madre de la sangre. Alteraron los niveles de los factores de transcripción para impulsar su transición a células madre de sangre, que se formaron en una capa de células endoteliales fetales para confirmar sus propiedades.

Santos invita a Trump a una Colombia "en paz"
En tanto, el presidente colombiano, Juan Manuel Santos, remarcó la "fuerte y estratégica alianza" entre EE. "Nuestra alianza se afianzó", aseguró Santos .

"Ahora podemos mostrar la función de la sangre humana en los 'ratones humanizados'". Esto permitirá fabricar un abastecimiento ilimitado de células madre de la sangre extraídas de las células de donantes universales. "Esto podría aumentar el suministro de sangre para los pacientes que necesitan transfusiones", aclaran los autores.

Este paso abre una oportunidad para "crear células de la sangre funcionales" para combatir enfermedades genéticas de la sangre, ha señalado en un comunicado Ryohichi Sugimura, principal firmante del trabajo y uno de los investigadores del equipo de Daley.

FCA US files for diesel vehicle certification
Nonetheless, the stop-sale prevented those models from being sold in the US until the automaker corrected the issues. Department of Justice and other governmental agencies".

La mayoría de investigaciones en el pasado habían concluido que una sola célula madre hematopoyética (generadora) puede brindar una gran variedad de linfocitos, las cuales recorren nuestras venas y por las que sobrevivimos a virus y bacterias.

'GREATEST WITCH HUNT IN US HISTORY' | Trump slams Russian Federation ties probe
In a written statement, Trump insisted anew there were no nefarious ties between his campaign and Russian Federation . Rosenstein has done the right thing", Senate Minority Leader Chuck Schumer of NY said on the Senate floor.

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