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Embeddings multimodales parcialmente compartidos aprenden una representación holística del estado celular

Xinyi Zhang1,2, G V Shivashankar3,4, Caroline Uhler5,6

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Un nuevo marco computacional, APOLLO, integra diversos datos unicelulares aprendiendo el intercambio de información parcial. Este enfoque proporciona una visión más interpretable de los estados celulares al distinguir la información compartida y específica de la modalidad.

Palabras clave:
biología computacionalanálisis multiómico unicelularbioinformática

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Área de la Ciencia:

  • Biología computacional
  • Análisis multiómico unicelular
  • Bioinformática

Sus antecedentes:

  • Las tecnologías unicelulares generan diversos tipos de datos simultáneamente.
  • Los métodos de integración actuales a menudo oscurecen las contribuciones específicas de la modalidad.
  • Necesidad de métodos que retengan y distingan la información compartida y específica de la modalidad.

Objetivo del estudio:

  • Introducir APOLLO, un marco computacional para integrar datos unicelulares multimodales.
  • Permitir el aprendizaje del intercambio de información parcial entre diferentes tipos de datos.
  • Proporcionar una visión más interpretable y holística de los estados celulares.

Principales métodos:

  • Se desarrolló un Autoencoder con un espacio latente parcialmente superpuesto aprendido a través de la Optimización Latente (APOLLO).
  • Probado en datos simulados y cuatro conjuntos de datos unicelulares del mundo real (SHARE-seq, CITE-seq, imagen multiplexada).

Principales resultados:

  • APOLLO integra con éxito diversas modalidades de datos unicelulares.
  • Permite la predicción de datos faltantes, como tinciones de proteínas no medidas.
  • Permite el desentrañamiento de las contribuciones de la modalidad o del compartimento celular a fenotipos específicos.

Conclusiones:

  • APOLLO ofrece un enfoque eficiente para la integración de datos unicelulares multimodales.
  • Conserva y distingue la información compartida y específica de la modalidad para una mayor interpretabilidad.
  • Facilita una comprensión holística de los estados y fenotipos celulares.