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Celeste Karch

@karchlab.bsky.social
433 followers 52 following 68 posts

Professor. Washington University School of Medicine. Genomics, stem cell models, molecular mechanisms of AD and other tauopathies. She/her. www.karchlab.wustl.edu

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Celeste Karch @karchlab.bsky.social · 22/04/2026
mtyc.co/7sb9ye
mtyc.co
Support From STL to the Capitol: It Starts With You! on Give STL Day
Join me in supporting the work of Empower Missouri!
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Selina Wray @selinawray.bsky.social · 13/04/2026
New preprint 🥳 Gamma secretase isnt a single enzyme, multiple GSEC exist depending on which subunits are incorporated into the complex. We made PSEN1 & PSEN2 knockouts to study the impact of different GSEC in neurons & microglia Led by @celarber.bsky.social www.biorxiv.org/content/10.6...
biorxiv.org
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Celeste Karch @karchlab.bsky.social · 10/04/2026
Excited to share new work led by Sam Swift in the lab identifying NINL as a modifier of tau seeding
alz-journals.onlinelibrary.wiley.com
Integrative genomic and functional analyses reveal NINL as a modulator of tau aggregation
INTRODUCTION Proteostasis dysfunction is a hallmark of frontotemporal dementia (FTD) and Alzheimer's disease (AD), yet the genetic and molecular pathways that disrupt protein homeostasis remain poor...
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Celeste Karch @karchlab.bsky.social · 02/04/2026
Beyond excited to share new work using super resolution microscopy to reveal how a tau mutation drives early changes in the autophagy lysosome pathway led by the amazing Dr Mirfakhar
nature.com
A pathogenic Tau mutation drives autophagy-lysosome dysfunction that limits Tau degradation in a model of frontotemporal dementia - Nature Communications
Researchers show that a disease-causing Tau mutation disrupts the autophagy-lysosome pathway in human neurons, leading to Tau accumulation, and that enhancing autophagy can partially restore protein c...
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Sandro Da Mesquita @da-mesquita.bsky.social · 26/03/2026
Sex-specific APOE4-dependent innate immunity regulates meningeal lymphatics, brain lipids, neuroinflammation, and cognition: Neuron www.cell.com/neuron/fullt...
cell.com
Sex-specific APOE4-dependent innate immunity regulates meningeal lymphatics, brain lipids, neuroinflammation, and cognition
Delivanoglou et al. show that expression of APOE4, a risk factor for Alzheimer’s disease, leads to sexually dimorphic lymphatic and inflammatory responses in mice and humans alike. Suppressing APOE4-i...
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John Lukens @lukensjohnr.bsky.social · 30/03/2026
UBQLN2 links proteotoxicity with lipid metabolism in neurodegeneration www.nature.com/articles/s41...
nature.com
UBQLN2 links proteotoxicity with lipid metabolism in neurodegeneration - Nature Neuroscience
ALS/FTD-linked mutations in UBQLN2, a protein quality control factor, impair degradation of enzymes essential for mitochondrial lipid catabolism, leading to metabolic dysfunction and neurodegeneration...
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Human Rights Watch @hrw.org · 31/03/2026
Transgender rights = human rights. In many countries around the world, the rights of trans people are under attack. This International Transgender Day of Visibility, we continue to work for a world where all people can enjoy their rights fully.
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Juan S. Bonifacino @juanbonifacino.bsky.social · 23/12/2025
Latest preprint from our lab reports that the distinct pH of anterograde (less acidic) and retrograde (more acidic) lysosomal vesicles in the axon depends on assembly of the V1 and V0 domains of the vacuolar H+ ATPase, mediated by the metazoan RAVE complex www.biorxiv.org/content/10.6...
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saligramalab.bsky.social @saligramalab.bsky.social · 19/11/2025
Guidelines for T cell nomenclature www.nature.com/articles/s41...
nature.com
Guidelines for T cell nomenclature - Nature Reviews Immunology
This Consensus Statement clarifies the existing subset-based nomenclature for T cells. Furthermore, it proposes an alternative modular nomenclature that is designed to be brief and flexible and to avo...
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Celeste Karch @karchlab.bsky.social · 14/11/2025
medicalxpress.com/news/2025-11...
medicalxpress.com
Newly discovered RNA molecule could limit protein aggregation and prevent neuronal damage
Neurodegenerative diseases, such as Alzheimer's disease and dementia, are medical conditions that entail the progressive loss of neurons and a decline in brain function. Past studies have found a link...
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Celeste Karch @karchlab.bsky.social · 08/11/2025
"[c]learly Rosy had to go or be put in her place”
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The Friedman Brain Institute @sinaibrain.bsky.social · 05/11/2025
NEW STUDY! Building on pioneering work by Dr. Alison Goate, an international team of researchers, led by #IcahnMountSinai's Anne Schaefer, ID'd distinct population of neuroprotective #Microglia that may point to new therapeutic approach for #Alzheimers. @nature.com 👉 www.nature.com/articles/s41...
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Celeste Karch @karchlab.bsky.social · 31/10/2025
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Cure MAPT FTD @curemaptftd.bsky.social · 26/10/2025
Our first Family Social Hour is today at 8PM! Join us to meet other #MAPTFTD families ❤️ #cureMAPTFTD #FTD us06web.zoom.us/meeting/regi...
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Celeste Karch @karchlab.bsky.social · 25/10/2025
#EndAlz
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Martin Kampmann @kampmann.bsky.social · 22/10/2025
Thank you Alzforum for featuring our new preprint identifying regulators of disease states of #microglia. Project led by Amanda McQuade, computation by Reet Mishra, collaboration with the Nunez and De Jager labs. Alzforum www.alzforum.org/news/researc... Preprint www.biorxiv.org/content/10.1...
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Celeste Karch @karchlab.bsky.social · 21/10/2025
Excited to share new work from the lab showing that FTD causing mutations in tau cause widespread defects in microglia function www.nature.com/articles/s41...
nature.com
Cell autonomous microglia defects in a stem cell model of frontotemporal dementia tau - Molecular Psychiatry
Molecular Psychiatry - Cell autonomous microglia defects in a stem cell model of frontotemporal dementia tau
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Celeste Karch @karchlab.bsky.social · 21/10/2025
Excited to share new work from the lab showing that loss of AD risk gene Ms4a4a promotes abeta clearance and protects against amyloid plaque accumulation in a mouse model 🧠🐭 alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
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Celeste Karch @karchlab.bsky.social · 18/06/2025
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Celeste Karch @karchlab.bsky.social · 18/06/2025
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Celeste Karch @karchlab.bsky.social · 12/06/2025
🎉🎉🎉🎉🎉🎉🎉
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Celeste Karch @karchlab.bsky.social · 06/06/2025
Should PIs at institutions where NIH funds have been frozen still agree to participate in NIH study sections?
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Martin Kampmann @kampmann.bsky.social · 20/05/2025
www.alz.org/news/2025/ke...
alz.org
Contrary to Clear, Verifiable Facts, Secretary Kennedy Continues to Repeat Harmful Myths About Alzheimer’s and Dementia Research
The Alzheimer's Association calls on HHS Secretary Kennedy to stop dangerous fabrications about the state of Alzheimer’s and dementia research.
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Soyon Hong @soyonhonglab.bsky.social · 09/05/2025
Dear immune/glia lovers of brain, gut and beyond… We’re looking for a lab tech/manager to join our team! Pls see details for application here ucl.ac.uk/work-at-ucl/se… @ukdri.ac.uk @uclqsion.bsky.social - pls help circulate among networks who’d be of interest, thank you!
ucl.ac.uk
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Celeste Karch @karchlab.bsky.social · 05/05/2025
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Shannon Macauley @macauleylab.bsky.social · 01/05/2025
LipidCruncher: An open-source web application for processing, visualizing, and analyzing lipidomic data
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Celeste Karch @karchlab.bsky.social · 01/05/2025
Everyone should contact their us congress members and tell them not to cut SNAP (food stamps). secure.everyaction.com/lmBv70YdQkCu...
secure.everyaction.com
URGENT ACTION ALERT: Historic Threat to SNAP – Keep The Pressure On
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Young-Pearse Lab @typlab.bsky.social · 30/04/2025
New TYP lab paper out today in @cp-neuron.bsky.social led by PhD student @alexlish.bsky.social! We took a deep dive into the mechanisms underlying CLU in AD using innovative iPSC, mouse, and human data approaches. Be sure to give it a read! www.cell.com/neuron/abstr...
cell.com
CLU alleviates Alzheimer’s disease-relevant processes by modulating astrocyte reactivity and microglia-dependent synaptic density
Lish et al. reveal that AD-protective CLU alleles enhance CLU upregulation in response to accumulated neuropathology, thereby dampening inflammatory signaling between microglia and astrocytes. Using s...
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Celeste Karch @karchlab.bsky.social · 18/04/2025
Great article featuring pioneering work from the Frost lab along with promising clinical trial data @bessfrost.bsky.social
science.org
Could blocking ‘jumping genes’ help fight disease and aging?
The first clinical trials are testing inhibitors of transposons, DNA sequences that hop around the genome on their own
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Charleston Conference on Alzheimer's Disease (CCAD) @the-ccad.bsky.social · 17/04/2025
Join us on Monday, April 21st for our next #ZoomYourCareer webinar, "The Future of #AI in Research “Is #ChatGPT Smarter than Me?” with #CCAD alumni speakers Shea Andrews and @trajnp.bsky.social! Registration 🔗 us02web.zoom.us/meeting/regi... #NewVisionResearch #ProfessionalDevelopment
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Prof Malú Gámez Tansey @malutansey.bsky.social · 10/04/2025
Zoom your career 🤓🧠🧬https://us02web.zoom.us/meeting/register/tIp9vIuwSF2LJydcdpDIxQ#/registration
us02web.zoom.us
Welcome! You are invited to join a meeting: The Future of AI in Research “Is ChatGPT Smarter than Me?”. After registering, you will receive a confirmation email about joining the meeting.
Welcome! You are invited to join a meeting: The Future of AI in Research “Is ChatGPT Smarter than Me?”. After registering, you will receive a confirmation email about joining the meeting.
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Kepecs Lab @ WashU @kepecslab.bsky.social · 11/04/2025
1/ Why do patients with late-stage cancer lose motivation & sink into apathy? 🔥 Our new Science paper shows chronic inflammation activates a cytokine-sensing brain circuit that lowers motivation. Huge team effort: Aelita Zhu, Sarah Starosta, Pignatelli & Janowitz labs! 🧵 🔗 doi.org/10.1126/scie...
doi.org
A neuroimmune circuit mediates cancer cachexia-associated apathy
Cachexia, a severe wasting syndrome associated with inflammatory conditions, often leads to multiorgan failure and death. Patients with cachexia experience extreme fatigue, apathy, and clinical depres...
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Celeste Karch @karchlab.bsky.social · 31/03/2025
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Celeste Karch @karchlab.bsky.social · 27/03/2025
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Na Zhao @zhaonaa.bsky.social · 20/03/2025
Excited to share our findings on how APOE genotype impacts cell responses to AD using human brain snRNAseq. Huge thanks to the team for all the hard work! @drneurochic.bsky.social @mayoclinic.org @cp-neuron.bsky.social
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Celeste Karch @karchlab.bsky.social · 19/03/2025
When educators, students, families, and community members come together, there is nothing we cannot achieve. Join us to protect students and families on March 19 by attending or hosting a “walk-in” at your local school: nea.org/March19
nea.org
March 19 Participant Toolkit | NEA
On Wednesday, March 19, our communities will walk into our schools together to show elected leaders that we are united in support for the programs and protections our communities need to thrive.
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Maya Voichek @mayavoichek.bsky.social · 17/03/2025
1/ Transposable elements are often called "jumping genes" because they mobilize within genomes. 🧬 But did you know they can also jump 𝘣𝘦𝘵𝘸𝘦𝘦𝘯 cells? 🤯 Our new study reveals how retrotransposons invade the germline directly from somatic cells. www.biorxiv.org/content/10.1... A short thread 🧵👇
Drosophila follicle showing retrotransposons (pink & yellow) expressed in somatic cells infecting the oocyte
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Frank Shewmaker @frank-shewmaker.bsky.social · 17/03/2025
NfL beats GFAP in a head-to-head FTD biomarker competition. Gendron et al. show plasma GFAP and NfL correlate with FTD disorder severity; however, NfL outperforms GFAP as a prognostic biomarker and potential susceptibility marker. molecularneurodegeneration.biomedcentral.com/articles/10....
molecularneurodegeneration.biomedcentral.com
Comprehensive cross-sectional and longitudinal comparisons of plasma glial fibrillary acidic protein and neurofilament light across FTD spectrum disorders - Molecular Neurodegeneration
Background Therapeutic development for frontotemporal dementia (FTD) is hindered by the lack of biomarkers that inform susceptibility/risk, prognosis, and the underlying causative pathology. Blood gli...
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John Lukens @lukensjohnr.bsky.social · 14/03/2025
Endothelial TDP-43 depletion disrupts core blood–brain barrier pathways in neurodegeneration www.nature.com/articles/s41...
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John Lukens @lukensjohnr.bsky.social · 14/03/2025
Multi-cohort cerebrospinal fluid proteomics identifies robust molecular signatures across the Alzheimer disease continuum: Neuron www.cell.com/neuron/fullt...
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Wilfried Rossoll @rossolllab.bsky.social · 13/03/2025
Our proximity proteomics study introducing Probe‑dependent Proximity Profiling (ProPPr) and applying it for profiling tau pathology‑associated proteins in tauopathies + @drneurochic.bsky.social & others is out now! @cziscience.bsky.social molecularneurodegeneration.biomedcentral.com/articles/10....
molecularneurodegeneration.biomedcentral.com
Probe-dependent Proximity Profiling (ProPPr) Uncovers Similarities and Differences in Phospho-Tau-Associated Proteomes Between Tauopathies - Molecular Neurodegeneration
Background Tauopathies represent a diverse group of neurodegenerative disorders characterized by the abnormal aggregation of the microtubule-associated protein tau. Despite extensive research, the mec...
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Melissa E. Murray @drneurochic.bsky.social · 13/03/2025
🤩Preprint alert👇 Excited to introduce the concept of transformative neuropathology, a term we use to describe the integration of foundational descriptive pathology with advanced technologies and methodologies 🔬🏛️🧬🧪🖥️🔬 🧠📊🤖 @cshlnews.bsky.social www.preprints.org/manuscript/2...
preprints.org
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Bess Frost @bessfrost.bsky.social · 12/03/2025
Results from our AntiRetroviral Therapy for Alzheimer's Disease (ART-AD) clinical trial are available online today and will be included in the inaugural issue of npj Dementia. rdcu.be/edfwq
rdcu.be
A Phase IIa clinical trial to evaluate the effects of anti-retroviral therapy in Alzheimer’s disease (ART-AD)
npj Dementia - A Phase IIa clinical trial to evaluate the effects of anti-retroviral therapy in Alzheimer’s disease (ART-AD)
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John Lukens @lukensjohnr.bsky.social · 12/03/2025
PTPσ-mediated PI3P regulation modulates neurodegeneration in C9ORF72-ALS/FTD: Neuron www.cell.com/neuron/fullt...
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Celeste Karch @karchlab.bsky.social · 06/03/2025
If you are in St Louis this weekend, join MO Jobs with Justice to support federal workers
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The Transmitter @thetransmitter.bsky.social · 05/03/2025
@michellemonje.bsky.social at @stanfordmedicine.bsky.social and Frank Winkler at Heidelberg University have won the 2025 @brainprize.bsky.social from the Lundbeck Foundation for their work in cancer neuroscience. By @sydneywyatt.bsky.social #neuroskyence www.thetransmitter.org/community/20...
thetransmitter.org
2025 Brain Prize honors pair of cancer neuroscientists
Michelle Monje and Frank Winkler share the $1.4 million award for their discovery of synapses between brain cancer cells and neurons.
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Towfique Raj @trajnp.bsky.social · 04/03/2025
Nice to see this finally published! Congratulations @jack-humphrey.bsky.social www.nature.com/articles/s41... (Collaborative work with Panos Roussos and his team! ) Long-read RNA sequencing atlas of human microglia isoforms elucidates disease-associated genetic regulation of splicing
nature.com
Long-read RNA sequencing atlas of human microglia isoforms elucidates disease-associated genetic regulation of splicing - Nature Genetics
This isoform-centric microglia genomic atlas includes 35,879 novel human microglia isoforms identified by long-read RNA sequencing. A multi-ancestry quantitative trait locus meta-analysis of known and...
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John Lukens @lukensjohnr.bsky.social · 03/03/2025
CLEC16A in astrocytes promotes mitophagy and limits pathology in a multiple sclerosis mouse model @NatureNeuro www.nature.com/articles/s41...
nature.com
CLEC16A in astrocytes promotes mitophagy and limits pathology in a multiple sclerosis mouse model - Nature Neuroscience
The mechanisms of pathological astrocyte responses during multiple sclerosis remain unclear. Kadowaki et al. found in MS mouse models that CLEC16A suppresses astrocyte pathogenic activities related to...
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Erin Gibson @erinmgibson.bsky.social · 28/02/2025
In honor of #RareDiseaseDay and the mom of an amazing kiddo with one, I want to highlight the amazing organization working to improve the lives of people and families with RASopathies (like ours). (Full disclosure, I am lucky enough to be a Board member of this organization too).
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Carolyn Bertozzi @carolynbertozzi.bskyverified.social · 26/02/2025
Happy to share this new #glycotime work with collaborator Tony Wyss-Coray, led by grad student Sophia Shi, mucin loss at the BBB is associated with aging and cognitive decline, can be reversed by restoration with with gene therapy. Aging is a mucinopathy! www.nature.com/articles/s41...
nature.com
Glycocalyx dysregulation impairs blood–brain barrier in ageing and disease - Nature
Disruption of mucin-domain glycoprotein expression and function in the endothelial glycocalyx are associated with ageing and Alzheimer’s disease, leading to dysregulated blood–brain barrier function.
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