now published at BMC Biology!
rdcu.be/fdITD
Posts by YC Chu
Congrats to first author @emmajbanks.bsky.social, #ListerFellow @tunglejic.bsky.social and collaborators 👏 Discovered 3-gene control hub and strict regulator genes for gene transfer agent activation and bacterial cell lysis.
Paper in @natmicrobiol.nature.com www.nature.com/articles/s41...
Our new paper (with Siemens Healthcare) showing how to rapidly design patient-specific pTx RF pulses to make lower-SAR homogeneous diagnostic-quality 7T SPACE and FLAIR MR images. Special thanks to all my NSERC reviewers who said this wouldn’t work 😉. onlinelibrary.wiley.com/doi/10.1002/...
The supply of blood to brain tissue is thought to depend on the overall neural activity in that tissue, and this dependence is thought to differ across brain regions and across brain states. However, studies supporting these views have measured neural activity as a bulk quantity and related it to blood supply following disparate events in different regions. Here we measure fluctuations in neuronal activity and blood volume across the mouse brain, and find that their relationship is consistent across brain states and brain regions but differs in two opposing brainwide neural populations. Functional ultrasound imaging (fUSI) revealed that whisking, a marker of arousal, is associated with brainwide fluctuations in blood volume. Simultaneous fUSI and Neuropixels recordings showed that neurons that increase activity with whisking have distinct haemodynamic response functions compared with those that decrease activity. Their summed contributions predicted blood volume across states.Brainwide Neuropixels recordings revealed that these opposing populations coexist in the entire brain. Their differing contributions to blood volume largely explain the apparent differences in blood volume fluctuations across regions. The mouse brain thus contains two neural populations with opposite relations to brain state and distinct relationships to blood supply, which together account for brainwide fluctuations in blood volume.
How does blood flow relate to brain activity? We discovered that it reflects two neural populations affected oppositely by arousal. Together, they explain neurovascular coupling in all brain regions and brain states!
Out today in Nature: rdcu.be/fdC2A
@uclbrainscience.bsky.social
Excited to share the latest one from the lab led by José Solano @jolusolo.bsky.social who explored how early life #stress impacts the mouse 🐭 brain 🧠 vasculature
Science 🧪🔬 can be surprising & 2x stress can induce beneficial adaptations leading to resilience, phew!
www.biorxiv.org/content/10.6...
Finally got around to reading this very cool paper on how diurnal mammalian species inverted the response to circadian entraining cues via cell-intrinsic biochemical and molecular mechanisms.
Fun read!
www.science.org/doi/10.1126/...
Regulation of neuronal invasion of small cell lung cancer by STMN2/β-alanine-controlled metabolic reprogramming
uPA-mediated remodeling of CCL21 gradients regulates lymphatic migration of dendritic cells, by Victor Collado-Diaz, Maria-Nefeli Christakopoulou, Philipp Schineis, @halinlab.bsky.social et al. rupress.org/jcb/article/...
📕 JCB Immune Cell Biology collection 👉 rupress.org/jcb/collecti...
#AAI2026
Peng Chen, Zhenhua Zhu, Baoxing Dong, Junxiang Ji, Yuqing Zhu, Wenqiang Liu, Shou-Dong Ye (Anhui University) and colleagues establish a rosette-forming intermediate stem cell model that captures the peri-implantation transition. rupress.org/jcb/article/...
#CellCycle #CellDivision #StemCells
Fig. 1. Early expression of TgBAC(ankrd1a:EGFP) transgene in the border zone CMs. Hearts of TgBAC(ankrd1a:EGFP);Tg(−0.8myl7:nls-DsRedExpress) (n = 4) were cryoinjured and left to recover for 6 and 15 h. White dashed line outlines the ventricle. Scale bars, 200 μm.
Fig. 6. Persistent TgBAC(ankrd1a:EGFP) expression in CMs adjacent to the residual scar. Hearts (n = 4) of TgBAC(ankrd1a:EGFP);Tg(−0.8myl7:nls-DsRedExpress) zebrafish were cryoinjured and analyzed at 30 dpci, showing different levels of scar resolution (least (A) to most (D) regenerated). The whole hearts after dissection were imaged by fluorescence microscopy (A-D). Serial sections were used for AFOG staining (bright-field images on panels А'-D′) and fluorescence imaging by confocal microscopy (А"-D″). In the indicated region of injury on panels A'-D′, collagen is stained blue, fibrin is stained orange, and CMs are stained brown. Scale bar, 100 μm.
An interesting paper from the Kojic lab shows that ankrd1a - a stress responsive gene is consistently unregulated near damaged site in the ❤️ in zebrafish. Loss of ankrd1a leads to an increase in dedifferentiating cells. Check it out here:
doi.org/10.1016/j.cd...
Vinayagamurthy, Bhatt et al. of the Shantanu Chowdhury lab @csir-igib.bsky.social reveal TRF2 is integral for NSC identity. Surprisingly, non-telomeric function of TRF2, instead of commonly understood telomere protection by TRF2, is critical for NSCs. rupress.org/jcb/article/...
#StemCells
👋Our April issue is out!
Cover: Visualizing #lipids
👉2 Perspectives: #embryo models
👉Comment on #mitochondria DNA
🔬 #telomeres #leukemia #ferroptosis #pyroptosis #PhaseSeparation #CellAdhesion #BreastCancer #lncRNA #metabolism #autophagy #microscopy & more!
www.nature.com/ncb/volumes/...
New @currentbiology.bsky.social paper from Dr. Leila Elabbady on neural circuits that transform a touch stimulus into spatially targeted grooming.
Leila discovered a leg somatotopic map and used it to infer tactile receptive fields in the fly VNC connectome.
authors.elsevier.com/a/1mvu83QW8S...
Just out in npj Antimicrobials & Resistance @natureportfolio.nature.com
www.nature.com/articles/s44...
We looked at what actually happens to AMR on pig farms when you reduce antimicrobial use through real-world, coaching-based interventions.
Nature research paper: Molecular basis for methylation-sensitive editing by Cas9
go.nature.com/4tMQ3XQ
Did you know immune systemB cells are essential for exercise performance?
Learning from B cell deficiency in the mouse model
cell.com/cell/fulltex...
🌟Now in Nature Cancer, multi-omics analysis of nasopharyngeal carcinoma identifies molecular subtypes with distinct immune profiles and responses to induction chemotherapy.
🖊️by Jia-Xing Yue, Na Liu, Aihua Sun, Jun Ma & Fuchu He and colleagues
www.nature.com/articles/s43...
🌟New study in Nature Cancer evaluates the clinical significance of early PSMA upregulation in patients with metastatic castrate-resistant prostate cancer treated with enzalutamide with or without 177Lu-PSMA-617.
by @drlouiseemmett.bsky.social & colleagues
www.nature.com/articles/s43...
NF-κB signaling drives rapid skeletal muscle atrophy in patients with breast cancer: The cost of fighting cancer with chemotherapy
journals.physiology.org/doi/abs/10.1...
I am so excited to share our new findings with you! We provide the structural evidence for a direct protein-to-DNA information pathway, showing how a bacterial enzyme 'reads' its own structure to 'write' DNA. www.science.org/doi/10.1126/...
Proud to share our latest paper in @rscchembio.rsc.org, where we tackle oncogenic TRK fusions. Together, @sauravk05.bsky.social and Jiewei Jiang develop potent and selective degraders of the TPM3-TRKA fusion, a key cancer driver. pubs.rsc.org/en/content/a...
We have an exciting new story out at @science.org's Science Immunology! It is all about using #AAV-mediated cytokine delivery to change the lung environment. We can boost #lung #Tregs or delivery anti-inflammatory #cytokines, preventing fatal respiratory collapse
www.science.org/doi/10.1126/...
Out in @natmethods.nature.com: More dyes. They work. Quite well. And blink. Pick the one that fits your target, your technique, and your labeling density. With too many collaborators and institutes to list, but anchored at @hhmijanelia.bsky.social www.nature.com/articles/s41...
Two manuscripts from the lab to catch up upon exploring aspects kinesin-1 regulation. First, our examining the role of cargo-adaptor binding in controlling kinesin-1 conformational dynamics and association with MAP7 is now a VOR @elife.bsky.social elifesciences.org/articles/109...
What does it take to truly understand #cancer in all of its complexity?
Delighted to share our Review in Cell "Cancer ecosystems: A dynamic interplay across scales" with Daniela Quail, where we propose a multi-scale framework connecting tumor ecology with physiology 🧪⚕️
www.cell.com/cell/fulltex...
Phosphorylated tau exhibits antimicrobial activity capable of neutralizing herpes simplex virus 1 infectivity in human neurons
Tau, which is associated with Alzheimer's disease, has functions. It can neutralise virus infections, such as HSV
www.nature.com/artic...
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Toward a fully distributed inhibitory control system: converging evidence across modalities academic.oup.com/cercor/artic... Situates large scale cortical interactions during response inhibition in a literature spanning EEG, fMRI & human intracranial electrophysiology -> an emergent system
Great to see this out. Practical guidance on how to use protein depletion systems in C. elegans
Stunning new landmark study from #HHMIInvestigator David Reich & team @harvardmed.bsky.social lets us watch human evolution in real time across 10,000 years, & what ~16,000 ancient genomes reveal is striking: Natural selection didn't stop when civilization began — it sped up: bit.ly/4ep7uJI.