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Laurie H Glimcher1, Gregory A Petsko2

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Yuk Ming Dennis Lo recibió el Premio Lasker 2022 por descubrir el ADN fetal en la sangre materna. Este avance permitió pruebas prenatales no invasivas para condiciones como el síndrome de Down.

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Área de la Ciencia:

  • La genética
  • Biología molecular
  • Medicina Clínica

Sus antecedentes:

  • El diagnóstico prenatal tradicionalmente incluía procedimientos invasivos con riesgos asociados.
  • La presencia de ADN fetal libre de células (cfDNA) en la circulación materna ofreció una alternativa potencial no invasiva.
  • Las primeras investigaciones se centraron en identificar el material genético fetal dentro del torrente sanguíneo materno.

Objetivo del estudio:

  • Investigar la posibilidad de detectar material genético fetal en la sangre materna.
  • Desarrollar un método no invasivo para la detección genética prenatal.
  • Para permitir la detección temprana de anomalías cromosómicas como el síndrome de Down.

Principales métodos:

  • Utilizó técnicas moleculares avanzadas para aislar y analizar el ADN fetal libre de células del plasma materno.
  • Se han desarrollado ensayos sensibles para detectar secuencias específicas de ADN fetal y aneuploidias cromosómicas.
  • Valida el método de pruebas prenatales no invasivas (NIPT) en comparación con las técnicas de diagnóstico tradicionales.

Principales resultados:

  • Identificó y caracterizó con éxito el ADN fetal que circula en la sangre materna.
  • Demostró la alta precisión de las pruebas prenatales no invasivas en la detección del síndrome de Down y otras trisomías.
  • Se estableció la utilidad clínica del NIPT para el cribado prenatal generalizado.

Conclusiones:

  • El descubrimiento del ADN fetal en la sangre materna revolucionó el diagnóstico prenatal.
  • La prueba prenatal no invasiva ofrece una alternativa segura y efectiva a los procedimientos invasivos.
  • Este avance mejoró significativamente la detección de trastornos genéticos fetales, mejorando los resultados de salud materna e infantil.