Celeste Karch's Avatar

Celeste Karch

@karchlab.bsky.social

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

418 Followers  |  52 Following  |  65 Posts  |  Joined: 15.11.2024  |  1.5108

Latest posts by karchlab.bsky.social on Bluesky

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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...

23.12.2025 14:13 β€” πŸ‘ 39    πŸ” 14    πŸ’¬ 0    πŸ“Œ 1
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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...

Guidelines for T cell nomenclature www.nature.com/articles/s41...

19.11.2025 11:27 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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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...

medicalxpress.com/news/2025-11...

14.11.2025 00:22 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
"[c]learly Rosy had to go or be put in her place”

"[c]learly Rosy had to go or be put in her place”

08.11.2025 02:49 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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 πŸ‘‰ www.nature.com/articles/s41...

05.11.2025 23:51 β€” πŸ‘ 29    πŸ” 15    πŸ’¬ 0    πŸ“Œ 2
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Our first Family Social Hour is today at 8PM! Join us to meet other #MAPTFTD families ❀️

#cureMAPTFTD #FTD

us06web.zoom.us/meeting/regi...

26.10.2025 22:58 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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#EndAlz

25.10.2025 15:18 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

22.10.2025 18:28 β€” πŸ‘ 38    πŸ” 11    πŸ’¬ 0    πŸ“Œ 0
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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

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...

21.10.2025 21:22 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

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/...

21.10.2025 01:06 β€” πŸ‘ 34    πŸ” 8    πŸ’¬ 1    πŸ“Œ 0
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πŸŽ‰πŸŽ‰πŸŽ‰πŸŽ‰πŸŽ‰πŸŽ‰πŸŽ‰

12.06.2025 16:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Should PIs at institutions where NIH funds have been frozen still agree to participate in NIH study sections?

06.06.2025 21:22 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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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.

www.alz.org/news/2025/ke...

20.05.2025 19:01 β€” πŸ‘ 45    πŸ” 28    πŸ’¬ 0    πŸ“Œ 3

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!

09.05.2025 08:33 β€” πŸ‘ 10    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1
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LipidCruncher: An open-source web application for processing, visualizing, and analyzing lipidomic data

01.05.2025 18:55 β€” πŸ‘ 9    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
URGENT ACTION ALERT: Historic Threat to SNAP – Keep The Pressure On

Everyone should contact their us congress members and tell them not to cut SNAP (food stamps). secure.everyaction.com/lmBv70YdQkCu...

01.05.2025 15:59 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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CLU alleviates Alzheimer’s disease-relevant processes by modulating astrocyte reactivity and microglia-dependent synaptic density Lish etΒ 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...

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...

30.04.2025 15:56 β€” πŸ‘ 21    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
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Could blocking β€˜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

Great article featuring pioneering work from the Frost lab along with promising clinical trial data @bessfrost.bsky.social

18.04.2025 01:52 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Join us on Monday, April 21st for our next #ZoomYourCareer webinar, "The Future of #AI in Research β€œIs #ChatGPT Smarter than Me?” with #CCAD alumni speakers Shea Andrews and @trajnp.bsky.social!

Registration πŸ”— us02web.zoom.us/meeting/regi...

#NewVisionResearch #ProfessionalDevelopment

17.04.2025 22:25 β€” πŸ‘ 3    πŸ” 4    πŸ’¬ 0    πŸ“Œ 1
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Welcome! You are invited to join a meeting: The Future of AI in Research β€œIs 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 β€œIs ChatGPT Smarter than Me?”. After registering, you will receive a confirmation email about joining the meeting.

Zoom your career πŸ€“πŸ§ πŸ§¬https://us02web.zoom.us/meeting/register/tIp9vIuwSF2LJydcdpDIxQ#/registration

10.04.2025 15:43 β€” πŸ‘ 3    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
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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...

1/ Why do patients with late-stage cancer lose motivation & sink into apathy?
πŸ”₯ 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! 🧡
πŸ”— doi.org/10.1126/scie...

11.04.2025 14:00 β€” πŸ‘ 101    πŸ” 46    πŸ’¬ 4    πŸ“Œ 4
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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

20.03.2025 01:38 β€” πŸ‘ 23    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
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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.

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 β€œwalk-in” at your local school: nea.org/March19

19.03.2025 01:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Drosophila follicle showing retrotransposons (pink & yellow) expressed in somatic cells infecting the oocyte

Drosophila follicle showing retrotransposons (pink & yellow) expressed in somatic cells infecting the oocyte

1/ Transposable elements are often called "jumping genes" because they mobilize within genomes. 🧬
But did you know they can also jump 𝘣𝘦𝘡𝘸𝘦𝘦𝘯 cells? 🀯
Our new study reveals how retrotransposons invade the germline directly from somatic cells.
www.biorxiv.org/content/10.1...
A short thread πŸ§΅πŸ‘‡

17.03.2025 11:56 β€” πŸ‘ 546    πŸ” 259    πŸ’¬ 12    πŸ“Œ 33

@karchlab is following 20 prominent accounts