What Are Organoids? Understanding Organoid Models and How They Are Made

Miniaturized, in vitro versions of organs provide insights into disease and development.

Written byJennifer Zieba, PhD
Published Updated 8 min read

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Organoids are 3D cell cultures derived from pluripotent stem cells that mimic the structure, function, and cellular complexity of human organs. These in vitro, miniaturized versions of organs are especially well suited for studying complex multicellular organ structures, such as the brain, retina, kidney, and lungs, and are now widely used to study organ development and disease.1

A spheroid is a round cluster of primary or immortalized cells that scientists commonly grow with 3D culture techniques for tumor research.2 Organoids are similar to these structures, except their formation begins with tissue-specific stem cells that self-assemble into microscopic versions of a functioning organ component.1

Organoids allow researchers to study matrix-adhered cells and learn about organ development. A process that could take years using live model organisms now only takes months with organoids grown in culture. Combined with CRISPR genome ...

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  • Jennifer Zieba, PhD headshot

    Jen earned her PhD in human genetics at the University of California, Los Angeles. She is currently a project scientist in the orthopedic surgery department at UCLA where she works on identifying mutations and possible treatments for rare genetic musculoskeletal disorders. Jen enjoys teaching and communicating complex scientific concepts to a wide audience and is a freelance writer for The Scientist's Creative Services Team.

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