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Imágenes unificadas del lipidoma del desarrollo de los vertebrados

Halima Hannah Schede^1,2, Leila Haj Abdullah Alieh^1,2, Laurel Ann Rohde¹

¹Institute of Bioengineering, School of Life Sciences, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland.

|September 3, 2025

Resumen

Este estudio introduce uMAIA, un nuevo marco para analizar los datos de imágenes de espectrometría de masas para mapear el metabolismo embrionario. Revela nuevas distribuciones de lípidos cruciales para el desarrollo y la formación de órganos en embriones de pez cebra.

Área de la Ciencia:

Biología del desarrollo
Metabolomía
Espectrometría de masas por imágenes

Sus antecedentes:

El desarrollo embrionario implica cambios bioquímicos complejos, pero los programas metabólicos se comprenden poco en comparación con la regulación génica.
Las imágenes de espectrometría de masas (MSI) ofrecen potencial para mapear la distribución de metabolitos durante la embriogénesis.

Objetivo del estudio:

Desarrollar un marco analítico (uMAIA) para el análisis de grandes conjuntos de datos MSI.
Construir atlas metabólicos multidimensionales del desarrollo embrionario.

Principales métodos:

Estableció el marco analítico de la uMAIA para el análisis conjunto de los datos del MSI.
Mapeó la distribución 4D de más de 100 lípidos en embriones Danio rerio con resolución micrométrica utilizando MSI.

Principales resultados:

Descubrió trayectorias metabólicas sincronizadas con la morfogénesis.
Reveló una coordinación bioquímica organizada espacialmente que se perdió en las mediciones masivas.
Identificaron distribuciones inesperadas de esfingolipidos y triglicéridos, sugiriendo roles en el establecimiento de patrones y desarrollo de órganos.

Conclusiones:

El marco uMAIA permite la creación de atlas metabólicos de todo el organismo.
Este enfoque facilita el descubrimiento de circuitos metabólicos organizados espacialmente durante el desarrollo.

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