Gan Lab

@liganlab.bsky.social

Group of passionate scientists unraveling the mysteries of neurodegeneration at Weill Cornell Medicine 🧠 | Tackling Alzheimer’s, FTD, PD & related diseases 🧬 | Focused on tau, innate immunity, & targeted therapeutics using iPSC & transcriptomics🔬

Our study is out today in @NatureNeuro! We show that stressed neurons release DNA, activating cGAS–type I interferon signaling and driving inflammation, seizures and mortality in Dravet syndrome. Blocking cGAS disrupts this immune cascade and improves outcomes. www.nature.com/articles/s41...

cGAS-mediated type I IFN signaling contributes to disease progression in drug-refractory epilepsy - Nature Neuroscience

Huang et al. found that stressed neurons release DNA that activates the immune sensor cGAS, driving inflammatory responses that worsen seizures and mortality in Dravet syndrome. Blocking cGAS interrup...

nature.com

Preprint alert⚠️: Using HuMiNAX, an in vivo human iPSC neuroimmune chimera model of tauopathy, we show tau seeds drive neuronal loss, PGRN overexpression in microglia lowers inflammation & protects neurons, & a human neuronal lncRNA pathway mediates degeneration www.biorxiv.org/content/10.6...

Humanized tauopathy chimeras uncover microglial and lncRNA strategies for neuroprotection

Human genetics implicates innate immunity as a key modifier of tau toxicity, yet human-specific neuroimmune mechanisms remain difficult to test in vivo. Here, we developed HuMiNAX, the first humanized...

biorxiv.org

Gan lab takes on Central Park zoo! Groups ideated, wrote and shot 2-4min short videos about intriguing CP zoo lore last Friday. Awesome time storytelling and collaborating with everyone!

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Excited to share our spotlight article in Cell Stem Cell on CAR-A astrocyte therapy for Alzheimer’s disease, an innovative approach for in vivo amyloid clearance. We discuss both the promise and the challenges ahead. 🧠 www.sciencedirect.com/science/arti...

CAR-A astrocytes for Alzheimer’s: Promise and challenge

In a recent study in Science, Chen et al. engineer astrocytes with anti-amyloid chimeric antigen receptors (CARs) to enable sustained, antigen-directe…

sciencedirect.com

New in Nature: de Faria et al. show focal white matter lesions trigger remote microglial response to demyelinated neurons in grey matter, which is required for remyelination. Deplete grey matter microglia→repair failures→chronic grey matter inflammation doi.org/10.1038/s415...

Focal white matter lesions drive grey matter inflammation and synapse loss - Nature

A transient grey matter microgliosis is required for remyelination, the failure of which results in a chronic neuroinflammatory state seen in neurodegenerative disorders.

doi.org

Paquet lab addresses iPSC limitation: new line with endogenous P301L/S320F 4R tau develops age-related tauopathy phenotypes stem cells typically fail to model. Platform shows pathological tau aggregation for more precise tauopathy research & drug screening www.science.org/doi/10.1126/...

A human iPSC model of tauopathies engineered for 4R tau isoform expression endogenously develops late-stage neuronal tau pathology

A human iPSC–derived tauopathy model endogenously recapitulates late-stage pathology and enables translational applications.

science.org

The 13th Annual Appel Symposium on Mar 24 spotlighted the interconnectedness of neurodegenerative diseases. Drs. Sreeganga Chandra (Yale), Eddie Lee (UPenn), & Anna Orr (Appel) gave keynote presentations, preceded by over two dozen trainee posters from Appel & collaborating labs

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New in Science, Cao lab created a single-cell atlas spanning 21 mouse tissues over 3 age groups. Analysis shows broad changes in cellular composition, chromatin accessibility, & transcription factors in immune cells particularly & major sex differences www.science.org/doi/10.1126/...

Organism-wide cellular dynamics and epigenomic remodeling in mammalian aging

To investigate organism-wide cellular alterations and epigenomic dynamics during aging, we constructed a single-cell chromatin accessibility atlas spanning 21 mouse tissues across three age groups and...

science.org

Congratulations, Nessa Foxe, on receiving the Frank & Blanche Mowrer Memorial 2025-2026 WCGS Merit Fellowship! Nessa is a graduate student in our lab & this award recognizes her for her outstanding productivity & academic record. We couldn't be more proud!

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McGavern lab discovers dural venous sinuses are active neuroimmune interfaces. Fenestrated endothelial cells dynamically open/close borders (RAMP2 dependent) to balance fluid exchange with immune cell trafficking. Disruption compromises antiviral immunity www.nature.com/articles/s41...

Highly dynamic dural sinuses support meningeal immunity - Nature

Microscopic imaging and biochemical studies show that sinuses in mouse and human form a highly dynamic surface that regulates fluid movement and immune cell surveillance via RAMP1-dependent regul...

nature.com

PtdIns(3,5)P2 identified as endogenous lipid ligand of STING, cooperating with cGAMP to promote STING oligomerization, ER-Golgi trafficking, & TBK1 activation. PIKfyve–PtdIns(3,5)P2–STING axis is critical lipid-based mechanism for innate immune signaling www.nature.com/articles/s41...

PtdIns(3,5)P2 is an endogenous ligand of STING in innate immune signalling - Nature

Phosphatidylinositol 3,5-bisphosphate is a ligand of STING and, together with cGAMP, induces STING activation and innate immune responses.

nature.com

DeepMind debuts AlphaGenome to predict functional genomic features from DNA sequences at single-base resolution. Capturing long-range context, AlphaGenome excels at estimating how genetic variants affect gene expression, splicing, & chromatin accessibility www.nature.com/articles/s41...

Advancing regulatory variant effect prediction with AlphaGenome - Nature

AlphaGenome, a deep learning model that inputs 1-Mb DNA sequence to predict functional genomic tracks at single-base resolution across diverse modalities, outperforms existing models in variant effect...

nature.com

New study in Nat Neurosci finds TGFβ signaling is crucial for maintaining microglial resilience to myelin degeneration in the dorsal column of the spinal cord during aging & emergence of TGFβ signaling-sensitive microglial & disease-associated oligodendrocyte subsets www.nature.com/articles/s41...

TGFβ signaling mediates microglial resilience to spatiotemporally restricted myelin degeneration - Nature Neuroscience

Zhu et al. find that aging causes region-specific myelin damage in the spinal cord, which is counteracted by enhanced TGFβ signaling in microglia, revealing a protective mechanism for healthy aging.

nature.com

AD genetic risk links microglial immunity and cholesterol. Our new BioRxiv study identifies CH25H-derived 25-HC as a toxic lipid downstream of cGAS–STING–IFN that drives tau spread, inflammation, and neurodegeneration, offering a tractable therapeutic pathway. www.biorxiv.org/cgi/content/...

STING_IFN_CH25H lipid axis links innate immune activation to tau pathology

Genetic risk for Alzheimers disease is strongly enriched in pathways governing microglial activation and cholesterol metabolism, yet how these processes converge to drive neurodegeneration remains unc...

biorxiv.org