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Samuel Zambrano

@samuzambrano.bsky.social
86 followers 108 following 45 posts

Somewhere between physics and biology. Interested in Dynamical Systems (in) Biology. Physically at San Raffaele Univesity, Milan. sites.google.com/view/dynamical-sys… www.unisr.it/en/docenti/z/zambrano-…

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Samuel Zambrano @samuzambrano.bsky.social · 12/10/2026
Very nice read. Following this point of view, with @davidemazza.bsky.social and some bright young people from our teams we recently reviewed how signaling dynamics (visualized in single cells) indeed seems to determine cell fate decisions in many contexts. www.frontiersin.org/journals/cel...
frontiersin.org
Frontiers | Linking signaling dynamics and cell fate decisions through single-cell imaging: evidence and challenges
Our ever-growing capacity to observe dynamic processes at the single-cell level has highlighted how cells use complex signaling dynamics to provide adequate ...
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Philip Ball @philipcball.bsky.social · 10/10/2026
A weekend read for folks who want to get away from AI, Russian diesel, execution porn, and all that, and just read about some science. www.quantamagazine.org/how-does-lif...
quantamagazine.org
How Does Life Unfold? A Landscape Metaphor Comes Into Its Own. | Quanta Magazine
C.H. Waddington’s powerful image of embryonic stem cells specializing on a rolling landscape has captivated biologists since the 1950s. Experimental data is finally confirming, and complicating, his v...
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Samuel Zambrano @samuzambrano.bsky.social · 09/10/2026
Great news! The project “PROTEUS: Physics of Cancer Dynamics: Single Cells, Interacting Populations and Data-Driven Adaptive Control”, in which our team participates, has been funded through the PRIN 2026 call! Thanks to everyone involved! sites.google.com/view/dynamic...
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Nacho Molina @molinalab.bsky.social · 03/10/2026
It was a pleasure to collaborate on this beautiful piece of work led by Susan Mango: nature.com/articles/s41...
nature.com
Single-molecule chromatin tracing reveals a diversity of megabase heterochromatin domains - Nature Structural & Molecular Biology
Single-molecule imaging reveals diverse, megabase-scale heterochromatin domains in C. elegans. Some resemble TADs and depend on condensin I; others are independent of condensin and histone H3K9me, inc...
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Melanie Mitchell @melaniemitchell.bsky.social · 10/09/2026
I wrote down my thoughts about the last several weeks of AI hell. aiguide.substack.com/p/misleading...
aiguide.substack.com
Misleading Metaphors, Real Risks
What To Fear from AI Agents and How to Reclaim Our Human Agency
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Samuel Zambrano @samuzambrano.bsky.social · 10/09/2026
Some (late) news from the team, we were busy with all the holidaying: Timothy graduated in July, kudos to him! sites.google.com/view/dynamic...
sites.google.com
Dynamical Systems (in) Biology - Updates
10/09/2026: Timothy Heinichen got his degree on Biomedical Research in Medicine! This was long due: It was great to see Timothy graduating in July the 20th in San Raffaele University with his work o...
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Ricard Solé @ricardsole.bsky.social · 04/07/2026
How can an extremely simple equation open the door to virtually infinite complexity? Fifty years ago, Bob May’s classic paper in @nature.com on chaos showed how deterministic rules can generate unpredictability, with deep implications for ecology, physics & beyond. mym.iimas.unam.mx/ramon/docs/M...
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Alessandra Boletta @bolettalab.bsky.social · 01/07/2026
🎉 Excited to receive an #ERCPoC grant! QrCiliopathies will test the hypothesis that glutamine sensing is critical in renal ciliopathies, and an actionable node for therapeutics development. In PKD and beyond. #cilia #metabolism #mitochondria #PKD
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Papalopulu Lab @papalopululab.bsky.social · 16/06/2026
The latest article by @veronicabiga.bsky.social uses live-imaging and mathematical modelling to understand how hybrid states emerge in a cross-repressive transcription factor motif!
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eLife @elife.bsky.social · 02/05/2026
Heterogeneity of Sonic Hedgehog response dynamics and fate specification in single neural progenitors
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Heterogeneity of Sonic Hedgehog response dynamics and fate specification in single neural progenitors
Comparing signaling response profiles and fate outcomes in single cells reveals logic and limits of signal interpretation.
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Samuel Zambrano @samuzambrano.bsky.social · 24/04/2026
600% reduction means that you are paid to get the drug.
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Stefan Terjung @stefanterjung.bsky.social · 14/04/2026
We are looking for an experienced light microscopy specialist, motivated to support our users in the Advanced Light Microscopy Facility at EMBL Heidelberg. embl.wd103.myworkdayjobs.com/en-US/EMBL/j... -closing date 11 May 2026 @eurobioimaging.bsky.social @globalbioimaging.bsky.social
embl.wd103.myworkdayjobs.com
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Andrew D Wilson @adw.bsky.social · 06/04/2026
These two books contain the sum total of all human knowledge
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Samuel Zambrano @samuzambrano.bsky.social · 01/04/2026
A wrap-up of @events.embl.org #EESBioOsc Biological Oscillators meeting! sites.google.com/view/dynamic...
sites.google.com
Dynamical Systems (in) Biology - Updates
01/04/2026: A wrap-up of EMBL's Biological Oscillators meeting It was great to visit the EMBL in Heidelberg for be Biological Oscillators 2026 meeting, by far one of my favourite ones. An occasion to ...
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Samuel Zambrano @samuzambrano.bsky.social · 27/03/2026
Unfortunately @events.embl.org #EESBioOsc is coming to an end. As usual it was a scientific treat, and seeing @sarapozzi.bsky.social present her work was a highlight of the meeting. Nicely done!
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
As always, a pleasure working with @davidemazza.bsky.social and his fantastic lab and learn from them about the dynamic mysteries of p53. Great effort from @emabiong.bsky.social with @sarapozzi.bsky.social and @alessialoffreda.bsky.social ... thank you all! There is more to come- stay tuned!
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
And voilà. The simple model matches exactly what we observe: • Enhanced p53 accumulation when NF-κB and p53 are co-activated (vs p53 alone) • No discernible p53 activation when NF-κB is activated alone Once you consider the whole system, the apparent mystery disappears. (6/n)
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
This is where even a simple model becomes useful. Activating NF-κB perturbs a specific portion of the signaling network. The model embeds that perturbation in the full system and lets us simulate three scenarios: what if we activate NF-κB alone, p53 alone, or both together? (5/n)
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
Naively, you might expect that activating NF-κB alone would also lead to a big increase p53. But, "mysteriously", experimentally that’s not what happens. (4/n)
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
NF-κB is activated by cytokines like TNF-α, while p53 is activated by γ-irradiation. Here’s our key observation: We show that NF-κB induces TP53 gene expression. So when you co-activate NF-κB and p53, you get higher p53 levels. (3/n)
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
This work is also a nice example of how even simple mathematical models are incredibly useful in biological systems. They provide a rigorous description of what a perturbation actually does — within the context of the full network, not in isolation. (2/n)
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Samuel Zambrano @samuzambrano.bsky.social · 26/02/2026
So grateful to my buddy the great @davidemazza.bsky.social and all the contributors from our teams to this joint effort to unravel NF-κB–p53 crosstalk. Davide’s thread nicely explains the main findings — here’s a short side note from me 🧵👇 (1/n)
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Davide Mazza @davidemazza.bsky.social · 26/02/2026
What we found surprised us: these two transcription factors cooperate at the molecular level, yet this cooperation produces functional antagonism. Even more intriguingly, inflammatory signals can impair DNA repair by reshaping the temporal dynamics of p53. If you’re curious, here’s the story 👇
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Davide Mazza @davidemazza.bsky.social · 26/02/2026
🧵 I’m very happy to share a new preprint from the @samuzambrano.bsky.social group and ours — a project driven by @emabiong.bsky.social, a PhD student bold enough to tackle a question at the interface of our two expertises: how the biological oscillators p53 and NF-κB talk to each other.
biorxiv.org
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Science Magazine @science.org · 14/01/2026
New preclinical work in #ScienceSignaling reveals how #Tcells respond in real time to signaling inputs of varying intensities and could shed further light on how these cells become activated in the context of immunity and inflammation. scim.ag/4qN2h1d
scim.ag
Antigen affinity modulates ERK pulsing frequency during T cell activation
Real-time, single-cell imaging reveals ERK signaling dynamics in response to T cell receptor stimulation.
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Pablo J. Sáez @pjsaez.bsky.social · 09/01/2026
#FluorescenceFriday Proud of our the last paper @cellcommlab.bsky.social & 1st one of @jboixcampos.bsky.social We continue to study #CellMigration & how cells decide where to go: ↖️↗️⬇️? (movie of the actin #cytoskeleton) Full www.science.org/doi/10.1126/... @focalplane.bsky.social @science.org 🧪🔬
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Samuel Zambrano @samuzambrano.bsky.social · 05/01/2026
Un fantástico tónico intelectual como dice Savater, que por lo demás está en las antípodas de bigotes.
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Arjun Raj @arjunraj.bsky.social · 04/01/2026
Blog post: Chance favors the (theoretically) prepared mind Data is big, machines are learning, so what good is theory anyway? Isn't most discovery driven by serendipity anyway, with theory mostly a "post-mortem"? I argue that this view discounts the value of theory. open.substack.com/pub/arjunraj...
open.substack.com
Chance favors the (theoretically) prepared mind
In defense of the role of theory in innovation
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Melissa Martin @doubleemmartin.bsky.social · 25/12/2025
Extremely funny to call the pope “holier-than-thou”
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Oded Rechavi @odedrechavi.bsky.social · 29/11/2025
Fig. 6: Mathematical model
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Manlio De Domenico @manlius.bsky.social · 23/11/2025
Network Medicine is entering a new phase: one that demands we rethink how we study, model and ultimately treat complex diseases. www.sciencedirect.com/science/arti... #ComplexSystems #NetworkScience #Medicine #MedSky 🧪🧬🌐 🧵 1/
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Samuel Zambrano @samuzambrano.bsky.social · 06/11/2025
Hay un poco de batiburrillo entre sanciones y aranceles en el artículo. Lo último es algo más novedoso. No tengo muy claro que obedezca a una tendencia histórica irreversible, pero con Trump erro todos mis pronósticos :-)
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Samuel Zambrano @samuzambrano.bsky.social · 06/11/2025
Interesante pero un poco impreciso, no? Las sanciones y las vallas europeas anteceden con mucho a Trump.
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Samuel Zambrano @samuzambrano.bsky.social · 31/10/2025
Halloween is a nice day to share our new site, where you can find more info on what our team does. It can briefly be summarized as Dynamical Systems (in) Biology: sites.google.com/view/dynamic...
sites.google.com
Dynamical Systems (in) Biology
We are a team interested in (nonlinear) dynamical systems, in cell biology, in systems biology and in combinations of these elements. Here you can learn about us, who we are, what we publish, how to c...
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Davide Mazza @davidemazza.bsky.social · 23/10/2025
How do dynamics of signalling molecules skew cell fate decisions? With this review we try to move our first steps in the signalling dynamics field, together with the expert lead of @samuzambrano.bsky.social! Kudos to Fulvio, Sara and Erika for their excellent work!
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Samuel Zambrano @samuzambrano.bsky.social · 23/10/2025
As usual it was a pleasure and lots of fun to collaborate with @davidemazza.bsky.social and his lab in this effort led by Fulvio Bonsignore, Sara Pozzi and Erika Aloi.
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Samuel Zambrano @samuzambrano.bsky.social · 23/10/2025
We discuss the evidence from the main areas where this connection is being established (immunity, response to DNA damage, growth factors and developmental cues) outlining the common methodologies used and potential future directions of this emerging dynamic point of view on how cells make decisions.
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Samuel Zambrano @samuzambrano.bsky.social · 23/10/2025
Cells respond to stimuli by activating signaling pathways with a surprising variety of dynamics. Why? As we review here, there is growing evidence connecting dynamics with specific cell fate decisions www.frontiersin.org/journals/cel...
frontiersin.org
Frontiers | Linking signaling dynamics and cell fate decisions through single-cell imaging: evidence and challenges
Our ever-growing capacity to observe dynamic processes at the single-cell level has highlighted how cells use complex signaling dynamics to provide adequate ...
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Eric Topol @erictopol.bsky.social · 12/10/2025
New @nejm.org One-shot gene therapy for a type of congenital deafness enabled some children to hear for the first time, and 3 of 12 kids achieved normal hearing www.nejm.org/doi/full/10.1056/NEJMoa2400521
nejm.org
DB-OTO Gene Therapy for Inherited Deafness | NEJM
Genetic deficiency of otoferlin, a protein critical to synaptic transmission by the sensory hair cells of the ear, causes congenital deafness. Medicines to treat the condition are lacking; children...
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Ricard Solé @ricardsole.bsky.social · 02/10/2025
How dit life originate in our planet? How can we create it in the lab?Our @royalsocietypublishing.org Theme Issue "Origins of Life: the possible and the actual", coedited with @sfiscience.bsky.social C Kempes and Susan Stepney is out! royalsocietypublishing.org/toc/rstb/202... @manlius.bsky.social
royalsocietypublishing.org
Philosophical Transactions of the Royal Society B: Biological Sciences: Vol 380, No 1936
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Physics Magazine @physicsmagazine.aps.org · 19/09/2025
How do you prevent cacio e pepe sauce from congealing? A thoroughly researched answer earned its authors a prize!
physics.aps.org
Pasta Physics Scoops Up an Ig Nobel Prize
A group of Italian physicists was awarded the Ig Nobel Prize in Physics for their study of the phase diagram of a cheesy sauce renowned in Italy.
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Melanie Mitchell @melaniemitchell.bsky.social · 15/09/2025
I wrote a response to Thomas Friedman's "magical thinking" on AI here: aiguide.substack.com/p/magical-th...
aiguide.substack.com
Magical Thinking on AI
A Response to Thomas Friedman's Recent AI Columns in the New York Times
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BK. Titanji @boghuma.bsky.social · 08/09/2025
David Baltimore passed away this weekend. A pioneer of molecular virology who won the Nobel prize in medicine & physiology for his discovery of viral reverse transcriptase. This essay he wrote in 2018 reflecting of his 60yr career in science is a great read. www.annualreviews.org/content/jour...
annualreviews.org
Sixty Years of Discovery | Annual Reviews
Each of us is a story. Mine is a story of doing science for 60 years, and I am honored to be asked to tell it. Even though this autobiography was written for the Annual Review of Immunology, I have ch...
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Hannah Ritchie @hannahritchie.bsky.social · 22/08/2025
Our @ourworldindata.org we visualise weekly updates of wildfire data from the Global Wildfire Information System. Spain was having a pretty low/average year until the past few weeks when it went roaring past previous years. You can track this data here: ourworldindata.org/wildfires
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Samuel Zambrano @samuzambrano.bsky.social · 14/08/2025
Creo haber visto hace poco a un pariente cercano de la chungunga en un acuario de Lisboa. Nombre mucho mejor que el de nutria, que además evita problemas con los italianos, que a las nutrias las llamen 'lontre' y llaman 'nutrie' a otros bichos menos guapos. Un lío it.wikipedia.org/wiki/Myocast...
it.wikipedia.org
Myocastor coypus - Wikipedia
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Gretchen Goldman, PhD @gretchentg.bsky.social · 14/08/2025
My new @science.org editorial on the role of scientists in defending democracy is out today. As authoritarianism takes hold in the US, we must fight for the democratic principles that enable a free society and scientists have a key role. I hope you'll join us. www.science.org/doi/10.1126/...
science.org
Scientists’ role in defending democracy
The United States’ democratic leadership, commitment to freedom of expression, and investment in the pursuit of knowledge have long enabled its preeminence in science and technology. Yet today we are ...
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David Suter @davidsuter.bsky.social · 14/08/2025
🎯
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Samuel Zambrano @samuzambrano.bsky.social · 13/08/2025
There is something harder than reviewing a manuscript: reviewing a very bad manuscript.
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Carl T. Bergstrom @carlbergstrom.com · 08/08/2025
1. Federal funding for research promotes tech, biomedical, and scientific discovery in the US, and provides training for the sci/tech workforce that has brought immeasurable wealth to the US over the past 75 years. Today's executive order includes a provision that will obliterate both functions.
whitehouse.gov
Improving Oversight of Federal Grantmaking
By the authority vested in me as President by the Constitution and the laws of the United States of America, and to improve the process of Federal
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