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Franck Polleux

@franckp.bsky.social
2.3K followers 2K following 89 posts

Neuroscientist and cell biologist. Investigator of the Zuckerman Mind Brain Behavior Institute (ZMBBI) in New York

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Franck Polleux @franckp.bsky.social · 05/08/2026
I am exciting to highlight our new study published today in @cp-neuron.bsky.social. This work represents over 6 years of effort by an incredibly talented postdoc, Carlos Diaz-Salazar, in collaboration with @krzischlab.bsky.social, @bhadurilab.bsky.social at UCLA and Mercedes Paredes lab at UCSF 👇 🧵
cell.com
Human-specific SRGAP2 paralogs synchronize neotenic microglial maturation and synaptic development
Using a combination of microglia-specific conditional mouse knockout and knockin approaches and xenotransplantation of human iPSC-derived microglia, Diaz-Salazar et al. demonstrate that the human-spec...
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Franck Polleux @franckp.bsky.social · 29/04/2026
very excited to speak at this meeting, join us! 👇
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Molly Schumer @mollyschumer.bsky.social · 23/04/2026
Please share widely! We will imminently be posting a technician position in our lab group since @rheasood.bsky.social is off to grad school 🙌! If you know of anyone excited about molecular biology, evolution, and functional genomics please have them reach out (schumer at stanford). Start date ~June
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Jeremy Berg @jeremymberg.bsky.social · 30/03/2026
Watch Director Bhattacharya's performance at CPAC really got to me. I chose to share some of my observations with him. Hold on... 1/11
media.tenor.com
Here We Go Sherman Bell GIF
ALT: Here We Go Sherman Bell GIF
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Awful Announcing @awfulannouncing.bsky.social · 29/03/2026
"The way some of these other immigrants are getting treated in our country right now is a travesty and a disgrace... I think what’s going on in our country — what we’re doing to some of these amazing immigrants, is really unfortunate and it’s really sad." - Charles Barkley on CBS
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Indivisible ❌👑 @indivisible.org · 28/03/2026
The regime had no idea what it was going up against when Trump decided to invade Minnesota. #NoKings
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Franck Polleux @franckp.bsky.social · 13/03/2026
very exciting meeting !👇
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Max Kozlov @maxkozlov.bsky.social · 27/02/2026
The impact is already hitting science agencies hard. The NIH—the world's largest public biomedical research funder—has had to rely on leftover stopgap funds. New grant awards have slowed to a trickle — exacerbating the effects of a record-long shutdown in October. (h/t @jeremymberg.bsky.social)
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Franck Polleux @franckp.bsky.social · 27/02/2026
A timely and insightful perspective written by our former postdoc @justinkohare.bsky.social in @thetransmitter.bsky.social on dendritic integration and the urgent need to develop better ways to bridge molecular/cellular neuroscience with circuit/systems neuroscience 👇
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Physicians for a Healthy Democracy @physiciandemocracy.medsky.social · 27/02/2026
The cover says it all:
The Lancet
“The destruction that Kennedy has wrought in 1 year might take generations to repair, and there is little hope for US health and science while he remains at the helm.”
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The New Republic @newrepublic.com · 27/02/2026
DHS agents kidnapped Columbia neuroscience undergraduate student Ellie Aghayeva, lying to gain access to the building. trib.al/i0n38SC This comes less than a year after DHS agents abducted Columbia University student Mohsen Mahdawi and graduate Mahmoud Khalil.
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Denis Wirtz @deniswirtz.bsky.social · 26/02/2026
Federal funding for US biomedical research is moribund. Since October 1 2025, NIH is -80% in new grants and -70% in values (total dollars). Labs are closing down and researchers are leaving science. To what end?
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Angus Johnston @angus.bsky.social · 26/02/2026
Columbia says DHS entered a dorm at dawn today under false pretenses, detaining a student in violation of the law and university policy.
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Will Bunch @willbunch.bsky.social · 16/02/2026
MPLS was a great moral and practical victory for a new Trump-era resistance, but it was only the end of the beginning 15,000 new masked goons. 150 new ICE offices in every state, and a national network of warehouse concentration camps My column on the battle ahead www.inquirer.com/opinion/ice-...
inquirer.com
No, ICE isn’t ‘retreating.’ It’s loading up to invade your town. | Will Bunch
A much-hyped ICE pullback from Minneapolis is a blip in a looming nationwide surge of arrests, concentration camps.
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Cooper Lund @cooperlund.online · 10/02/2026
That's fucking right, go Team USA
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Governor JB Pritzker @govpritzker.illinois.gov · 09/02/2026
Unidos somos América.
Bad Bunny holds a football that says Together, we are America.
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Alexa Philippou @alexaphilippou.bsky.social · 25/01/2026
Unrivaled co-founder and WNBA MVP Breanna Stewart held up an “Abolish ICE” sign during player intros ahead of Mist’s game this afternoon. Photo via @unrivaledwbb.bsky.social
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Carl T. Bergstrom @carlbergstrom.com · 25/01/2026
It appears that this legend owns a little bookstore — and you can order books from him instead of Bezos. Link in next post.
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Fionna O’Leary @fascinatorfun.bsky.social · 25/01/2026
This is excellent, careful, ruthlessly calm effective reporting from @bbcrosatkins.bsky.social in stark contrast to the earlier both-siding bollox from other BBC colleagues.
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Joshua J. Friedman @joshuajfriedman.com · 22/01/2026
Do you appreciate @nws.noaa.gov's posts on Bluesky? Did you know that this account is a pilot program that may or may not be continued and even expanded to NWS field offices? NWS is soliciting comments here! www.surveymonkey.com/r/PrototypeN... Press release: www.weather.gov/media/notifi...
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Will Stancil @whstancil.bsky.social · 21/01/2026
They are targeting children because they are trying incite violence. I have talked to many journalists today, and they all made the same observation: Border Patrol and ICE have been rolling around with maximum aggression, lingering for ages as crowds, gather, seemingly trying to cause a riot.
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David Ho @davidho.bsky.social · 20/01/2026
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again. www.nature.com/immersive/d4...
This line graph illustrates the percentage change in agency staff levels from the previous year for nine major U.S. federal scientific and health organizations between the fiscal years 2016 and 2025. The agencies tracked include the CDC, Department of Energy, EPA, FDA, NASA, NIH, NIST, NOAA, and NSF. For the majority of the timeline between 2016 and 2023, the agencies show relatively stable fluctuations, generally staying within a range of +5% to -5% change per year. However, there is a dramatic and uniform plummet starting in the 2024–25 period. Every agency depicted shows a sharp downward trajectory, with staffing losses ranging from approximately -15% to over -25%. The Environmental Protection Agency (EPA) shows the most significant decline, dropping to roughly -26%, while the National Institute of Standards and Technology (NIST) shows the least severe but still substantial drop at approximately -15%.
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Chris Murphy @chrismurphyct.bsky.social · 20/01/2026
I flew down to south Texas today to do my job - investigate why people are dying in ICE detention centers. I was just illegally denied entry to Dilley Detention Center. Because they have something to hide.
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Franck Polleux @franckp.bsky.social · 19/01/2026
It’s never been so relevant…
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pete rogers, professional diaper changer @petemrogers.bsky.social · 08/01/2026
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Pierre Vanderhaeghen @vanderhaeghenp2.bsky.social · 03/09/2025
New from the lab: Fatty Acid Metabolism Sets the Species-specific Tempo of Cortical Development through Protein Acetylation Dynamics. Led by amazing trio: @ryo2iwata.bsky.social , Isabel Gallego, @emirerkol.bsky.social, together with @steinaerts.bsky.social , @fendtlab.bsky.social
biorxiv.org
Species-specific Rates of Fatty Acid Metabolism Set the Scale of Temporal Patterning of Corticogenesis through Protein Acetylation Dynamics
Developmental processes display temporal differences across species, leading to divergence in organ size and composition. In the cerebral cortex, neurons of diverse identities are generated sequential...
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Franck Polleux @franckp.bsky.social · 18/12/2025
Delighted to be awarded the 2025 International Prize from the @fondationfyssen.bsky.social jointly with my long time collaborator @vanderhaeghenp2.bsky.social for our work on the 'Neurobiological foundations of human cognition': www.fondationfyssen.fr/deux-laureat...
fondationfyssen.fr
Prix international 2025 - International Prize 2025 - fyssen
Deux lauréats pour le Prix international de la Fondation Fyssen La Fondation Fyssen a le plaisir d’annoncer que le Prix international est exceptionnellement attribué à deux lauréats cette année. Le pr...
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Leah @leah.myatproto.social · 17/12/2025
So I guess they can pencil him down for "opting for Polio" 🩺 🤷‍♀️
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Franck Polleux @franckp.bsky.social · 05/12/2025
Exciting PhD training opportunities 👇 www.mpi.nl/imprs-phd-fe...
mpi.nl
IMPRS PhD Fellowships 2026 | Max Planck Institute
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Franck Polleux @franckp.bsky.social · 27/11/2025
exciting opportunity! 👇
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Bill Grueskin @bgrueskin.bsky.social · 05/11/2025
This NYT story about how Mamdani dealt with the opposition by the city's elites fails to mention one particular elite institution: The NYT editorial page, which last June railed against him as "uniquely unsuited to the city’s challenges... lacks political savvy" www.nytimes.com/2025/11/04/n... 1/
nytimes.com
How Zohran Mamdani Beat Back New York’s Elite and Was Elected Mayor
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Samantha Maldonado @smaldo.bsky.social · 05/11/2025
Inbox— next cover of the New Yorker: “Mayor Mamdani,” by Edel Rodriguez
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Acyn @acyn.bsky.social · 05/11/2025
AOC: We have a future to fight for, and we're either going to do that together or you're going to be left behind. It's not about Progressive. It's not moderate, it's not liberal. This is about do you understand the assignment of fighting fascism right now? And the assignment is you come together…
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Franck Polleux @franckp.bsky.social · 27/10/2025
i really enjoyed talking to Holly Barker @thetransmitter.bsky.social about our collaborative work with @vanderhaeghenp2.bsky.social studying the role of human-specific genes SRGAP2B/C in implementing synaptic neoteny in human cortical neurons 👇
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Franck Polleux @franckp.bsky.social · 27/10/2025
a great piece by @vanderhaeghenp2.bsky.social in @thetransmitter.bsky.social 👇
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Kelsey Tyssowski @kelseytea.bsky.social · 22/10/2025
🧠🌟🐭 Excited to share some of my postdoc work on the evolution of dexterity! We compared deer mice evolved in forest vs prairie habitats. We found that forest mice have: (1) more corticospinal neurons (CSNs) (2) better hand dexterity (3) more dexterous climbing, which is linked to CSN number🧵
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David Ho @davidho.bsky.social · 22/10/2025
If you normally have an incoming class of 15 students (like in my PhD program), what's the point of admitting just one or two students? How are you going to teach classes or have any sense of camaraderie?
go.nature.com
US PhD admissions shrink as fears over Trump’s cuts take hold
Some doctoral programmes are admitting no students at all amid uncertainty about federal science funding.
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Acyn @acyn.bsky.social · 18/10/2025
Hasan: The great irony is of course that Donald Trump is the son of an immigrant. The grandson of an immigrant and married to an immigrant. In fact two of his three wives were immigrants, proving yet again that immigrants will do the jobs that even Americans are not willing to do.
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Bill Madden @maddenifico.bsky.social · 18/10/2025
This is Trump's hometown, New York City. It's hard to comprehend just how many patriotic Americans turned out for the No Kings protest against Trump and his fascist authoritarian regime — but this arial video gives y'all an idea. 🙌💪👏✊️🇺🇸👇
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Franck Polleux @franckp.bsky.social · 11/10/2025
This is what leadership looks like👇 orgchart.mit.edu/letters/rega...
orgchart.mit.edu
Regarding the Compact | MIT Organization Chart
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🦋Dr. Natalia🕊🌻🪬 @solnatamd.medsky.social · 08/10/2025
Six surgeons general...are coming late to the fight. No paywall: archive.ph/cW4yJ
washingtonpost.com
Opinion | Six surgeons general: It’s our duty to warn the nation about RFK Jr.
We took an oath to declare dangers when we found them. We’re doing that again today.
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Khashoggi's Ghost @urocklive1.bsky.social · 03/10/2025
The intellectual purge continues. Last month Marrazzo said she had been silenced when she and her colleagues pushed back against NIH officials who questioned the importance of childhood flu vaccines and canceled long-running clinical trials. www.cbsnews.com/news/rfk-jr-...
cbsnews.com
RFK Jr. fires NIH vaccine whistleblower Dr. Jeanne Marrazzo
RFK Jr. fired infectious disease specialist Dr. Jeanne Marrazzo, who told CBS News she was put on leave after questioning actions taken by Trump appointees.
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Franck Polleux @franckp.bsky.social · 30/09/2025
😔
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Yonah Freemark @yonahfreemark.com · 29/09/2025
Paris celebrated the opening of its 300th “school street”: landscaped & pedestrianized or semi-pedestrianized blocks situated in front of schools. Most have been completed since 2020.
leparisien.fr
Paris passe le cap des 300 rues piétonnes près des écoles pour être « plus accueillante aux enfants »
La municipalité, qui a organisé samedi une fête dédiée, tire un bilan positif de ces espaces piétonnisés aux abords des établissements scola
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Brad Lander @bradlander.bsky.social · 25/09/2025
I was back at 26 Federal Plaza today, where an ICE agent violently threw this bereft woman to the ground in front of her kids. She had not touched him. She did not pose any threat. She had to be taken to the hospital. (🎥: Elias Eliahu)
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Franck Polleux @franckp.bsky.social · 21/09/2025
Excited to highlight a new paper from my graduate student Sergio Bernal Garcia who, together withLuke Hammond, developed RESPAN, a new deep-learning pipeline automating the segmentation of neuronal morphology and dendritic spines from fluorescent microscopy images: www.cell.com/cell-reports...
cell.com
A deep learning pipeline for accurate and automated restoration, segmentation, and quantification of dendritic spines
Garcia et al. present RESPAN, a pipeline that enables automated dendritic spine analysis through seamless integration of deep learning image restoration and segmentation capabilities with comprehensiv...
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Julia Schaeffer | Axon regulation and regrowth lab @axonreg2lab.bsky.social · 11/09/2025
✨ Post-doc opportunity in axon biology, funded by #ATIP-Avenir! 👀 We are looking for an enthusiastic post-doc to join our team at @ibdm.bsky.social to explore translation dynamics in axon regrowth, using live imaging approaches. Apply at: emploi.cnrs.fr/Offres/CDD/U... Thank you for sharing! 👋 🙏
emploi.cnrs.fr
Portail Emploi CNRS - Offre d'emploi - Post-doctoral researcher in axon biology (M/F)
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Carl T. Bergstrom @carlbergstrom.com · 06/09/2025
Simpering cowards one and all. This is almost unbearable to watch.
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Franck Polleux @franckp.bsky.social · 05/09/2025
fascinating results👇
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