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Engineering neurovascular organoids with 3D printed microfluidic chips.

Idris Salmon1, Sergei Grebenyuk1, Abdel Rahman Abdel Fattah1

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Summary

This study introduces a 3D printed microfluidic chip for vascularizing human pluripotent stem cell organoids. This novel platform enables synchronized co-development, creating integrated neurovascular organoids for research.

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Area of Science:

  • Developmental Biology
  • Biotechnology
  • Tissue Engineering

Background:

  • Organ generation requires early vascular interaction, crucial for embryonic development.
  • Current organoids lack intrinsic vascularization, hindering growth and research into vascular roles.
  • Existing vascularization methods fail to synchronize temporal and spatial development.

Purpose of the Study:

  • To develop a human pluripotent stem cell (hPSC)-based method for creating vascularized organoids.
  • To enable spatially determined interactions between organoids and vasculature.
  • To create a platform for studying organoid-vasculature co-development.

Main Methods:

  • Utilized a custom-designed 3D printed microfluidic chip for sequential co-culture.
  • Incorporated hPSC-derived pericytes and endothelial cells for de novo vascular network formation.
  • Employed cerebral organoids as a model system to test the platform's efficacy.

Main Results:

  • Generated organized vascular networks through sprouting and self-assembly of vascular cells on-chip.
  • Achieved physical interaction and integration between vasculature and cerebral organoids.
  • Created an integrated neurovascular organoid on chip, demonstrating successful vascularization.

Conclusions:

  • The 3D printing platform effectively vascularizes organoids in a developmentally matched manner.
  • This cost-effective and accessible platform facilitates organoid-vasculature co-development.
  • The technology offers new possibilities for studying and manipulating organoid development with vasculature.