TY - JOUR KW - Assay systems KW - Neuroimmunology KW - Neurological models KW - Phenotypic screening KW - Tissue engineering AU - Jiajing Zhang AU - Yi Wei Lim AU - Angelica Medina AU - Yu-Chi Chen AU - Yining Irene Wang AU - Martin Carrasco Carvajal AU - Marc Ferrer AU - Emily M. Lee AB - Microglia are the primary resident immune cells of the brain, playing both protective and deleterious roles in neurological diseases, which makes them an enticing therapeutic target. Here we developed a Neural Microglia Integrated Multicellular iPSC-derived Cultured Spheroids (NeuroMIMICS) system that enables measurements of both neural network activity and immune responses using human iPSC-derived microglia, astrocytes, and neurons. We validated microglia functionalities in these neural tri-cultures including phagocytic activity, directed motility, and inflammatory responses. RNAseq analysis revealed a phenotypical acquisition of immune functionality via microglia incorporation, supported by increased cytokine production in spheroids challenged with pathogen-like insults. We then demonstrated that the incorporation of healthy microglia corrected alpha-synuclein A53T-mediated dysfunctional phenotypes in the neural spheroids. This work demonstrates a unique immunocompetent functional neural model that is robust and suited for high-throughput screening, laying the groundwork for its application to accelerate the discovery of new therapeutics for neurological diseases. BT - Communications Biology DA - 2026-07-15 DO - 10.1038/s42003-026-10696-w LA - en N2 - Microglia are the primary resident immune cells of the brain, playing both protective and deleterious roles in neurological diseases, which makes them an enticing therapeutic target. Here we developed a Neural Microglia Integrated Multicellular iPSC-derived Cultured Spheroids (NeuroMIMICS) system that enables measurements of both neural network activity and immune responses using human iPSC-derived microglia, astrocytes, and neurons. We validated microglia functionalities in these neural tri-cultures including phagocytic activity, directed motility, and inflammatory responses. RNAseq analysis revealed a phenotypical acquisition of immune functionality via microglia incorporation, supported by increased cytokine production in spheroids challenged with pathogen-like insults. We then demonstrated that the incorporation of healthy microglia corrected alpha-synuclein A53T-mediated dysfunctional phenotypes in the neural spheroids. This work demonstrates a unique immunocompetent functional neural model that is robust and suited for high-throughput screening, laying the groundwork for its application to accelerate the discovery of new therapeutics for neurological diseases. PY - 2026 T2 - Communications Biology TI - Microglia integrated neural spheroids enable neuroinflammatory responses and correct network dysfunction induced by alpha-synuclein mutation UR - https://www.nature.com/articles/s42003-026-10696-w Y2 - 2026-07-20 SN - 2399-3642 ER -