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Longwei Bai

@longweibai.bsky.social
67 followers 116 following 8 posts

PhD student @Leulier's lab @igfl @ENS de Lyon

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Reposted by Longwei Bai
Fumiaki Obata @obataf-lab.bsky.social · 25/09/2026
Our new study just out @nature.com Together with Koshi Imami @RIKEN IMS, Hina Kosakamoto found out the key molecule mediating lifespan extension by early life dietary restriction! www.nature.com/articles/s41...
nature.com
Lsp2 links early-life diet to adult translation and lifespan in Drosophila - Nature
Isotope tracing is used to determine the fate of larval dietary amino acids in adult flies, and identifies Lsp2 as a key regulator of translation and lifespan that forms the molecular basis of the eff...
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Zongzhao Zhai @immuno-physiology.bsky.social · 25/09/2026
Excited to share our work reporting that fly Lsp2 acts as a nutrient-induced physiological factor that amplifies mTORC1 output in TOP mRNA translation and regulates lifespan. www.nature.com/articles/s41...
nature.com
Lsp2 links mTORC1 to TOP mRNA translation and lifespan in Drosophila - Nature
In Drosophila, the protein Lsp2, which is induced by dietary essential amino acids, is a key physiological effector of mTORC1, and mutant flies that lack the Lsp2 gene exhibit reduced translation of T...
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corderolab.bsky.social @corderolab.bsky.social · 12/08/2026
Thoroughly enjoyed writing the Prime article for it! journals.plos.org/plosbiology/... Well done Longwei, Francois and the rest of the team.
journals.plos.org
The gut takes it all: Enteroendocrine control of developmental growth
How do developing animals sense nutritional shortages and adjust their growth accordingly? A new study in PLOS Biology shows that the developing intestine is a central regulator of a multi-organ signa...
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PLOS Biology @plosbiology.org · 12/08/2026
Animals can modulate the pace of their #development when #nutrition is limited, but how? This study in #Drosophila larvae uncovers a nutrient-sensitive gut–brain endocrine circuit that slows development and enhances survival under fluctuating nutritional conditions. 🧪 #AcademicSky plos.io/4z9O8QG
Schematic model illustrating the gut–brain axis regulating larval adaptation to nutritional stress.
Compared with normal fed conditions, undernourished germ-free (GF) status or severe malnutrition associated with LpWJL induces Lst expression in a small population of midgut EECs. Once induced, gut-derived Lst acts systemically to suppress the circulating levels of dIlp2. This EEC-specific Lst up-regulation is triggered by reduced amino acid availability through a multi-organ relay involving the fat body and IPCs in the brain. Consequently, Lst orchestrates a feedback control loop that temporarily attenuates developmental progression upon sensing systemic nutrient shortages. This bidirectional gut–brain axis ultimately enables Drosophila larvae to preserve viability under severe nutritional stress. Created in BioRender. Leulier, F. (2026) https://BioRender.com/.
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Alex Gould Lab @alexgouldlab.bsky.social · 25/02/2026
#Drosophila calling. Delighted to share our new collection of ShineGAL4 drivers for CNS, FB, muscles, enterocytes, oenocytes and MTs made by @vgirard.bsky.social, @sebsorge.bsky.social and colleagues @crick.ac.uk. All at Bloomington @bdsc.bsky.social @dev-journal.bsky.social tinyurl.com/4jpw9jd6
ShineGAL4 FLP-out clones
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François Leulier @francoisleulier.bsky.social · 26/01/2026
Latest from the lab. MS previously preprinted (see below) and finally published in print @dev-journal.bsky.social journals.biologists.com/dev/article/... Review process via @reviewcommons.org and @dev-journal.bsky.social 1/3
journals.biologists.com
Bacteria-dependent ecdysone lengthens hungry stomachs
Intestinal growth restriction in starving Drosophila larvae can be selectively rescued by Lactiplantibacillus plantarum (Lp) bacteria in the gut, but how microbiota promote growth is not well understo...
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Dafni Hadjieconomou @drosostalis.bsky.social · 11/01/2026
📣First preprint of the lab📣 Did that really happen?😅 Enteric neurons, aka somatic postmitotic cells, must hold on to their sex identity tight, to deliver a tuned response to signals from the ovary that instruct the animal to engage sex-matched behavioural programmes. www.biorxiv.org/content/10.6...
biorxiv.org
Genetic sex of enteric neurons enables ovarian relaxin to gate maternal gut plasticity
Animals must align intestinal plasticity and feeding with reproductive state, yet the checkpoint that gates these adaptations is unknown. Here we show that an ovary-to-enteric-neuron axis gates the on...
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Bardin Lab @bardinlab.bsky.social · 03/01/2026
Happy 2026 everyone- the time has come to apply! Registration for this exciting Dev Bio conference is until the end of January!
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François Leulier @francoisleulier.bsky.social · 23/11/2025
Revised refereed preprint: www.biorxiv.org/content/10.1... Revision work lead by @longweibai.bsky.social Our work reveals how the #microbiota helps buffer #malnutrition: L. plantarum sustains intestinal activity of the steroid hormone ecdysone, expanding the midgut and supporting systemic growth.
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François Leulier @francoisleulier.bsky.social · 08/11/2025
Latest from the lab by @longweibai.bsky.social www.biorxiv.org/content/10.1... 1/6
biorxiv.org
A nutrient-sensitive enterokine coordinates developmental plasticity through inter-organ signalling
Animal survival in fluctuating environments depend on the ability to modulate their developmental pace in response to nutrient availability, a phenomenon known as developmental plasticity. In Drosophi...
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Julien Colombani & Ditte Andersen lab @colombani-lab.bsky.social · 29/09/2025
Excited to share our last paper describing how intestinal stem cell migration promotes gut regeneration! www.nature.com/articles/s41...
nature.com
Pvf1-Pvr-mediated crosstalk between trachea and gut guides intestinal stem cell migration to promote gut regeneration - Nature Communications
Adult stem cells often reside in specialized niches that they exit upon injury. Here they show that in Drosophila, after damage the gut-associated trachea produces the PDGF-VEGF-related ligand Pvf1, which acts as a guidance cue directing ISC migration toward injury sites.
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corderolab.bsky.social @corderolab.bsky.social · 21/07/2025
Very happy and proud to share the latest work from our lab. Neuroendocrine control of intestinal regeneration through the vascular niche. www.sciencedirect.com/science/arti...
sciencedirect.com
Neuroendocrine control of intestinal regeneration through the vascular niche in Drosophila
Robust and controlled intestinal regeneration involves reciprocal interactions between the intestinal epithelium and its microenvironment. Here, we id…
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Longwei Bai @longweibai.bsky.social · 31/05/2025
Lastest work from Zhai's lab. mTORC1-mediated nutrient sensing orchestrates metabolic processes to maintain physiological homeostasis and influences organismal ageing in Drosophila. www.biorxiv.org/content/10.1...
biorxiv.org
An Adipose mTORC1 Effector Links Nutrient-induced Ribosomal Protein Translation to Lifespan in Drosophila
Mechanistic target of rapamycin complex 1 (mTORC1) senses nutrient availability to orchestrate metabolic processes critical for physiological homeostasis and organismal ageing. While mTORC1 preferenti...
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Igor Iatsenko @iatsenkolab.bsky.social · 28/05/2025
Happy to share our new preprint! We explored the mechanisms underlying differences between male and female #Drosophila in susceptibility to intestinal #infection. #symbiosky #immunity #AcademicSky #insect #symbiosis
biorxiv.org
Sex Differences in Drosophila Intestinal Metabolism Contribute to Sexually Dimorphic Infection Outcome and Alter Gut Pathogen Virulence
Sexual dimorphism in infection outcomes is a pervasive phenomenon, the underlying mechanisms of which remain incompletely understood. Here, utilizing Pseudomonas entomophila intestinal infection in Dr...
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Eric Topol @erictopol.bsky.social · 14/04/2025
Discovery of a gut hormone that regulates protein intake, sleep, and influences lifespan www.nature.com/articles/s42... (open-access) @natmetabolism.nature.com www.nature.com/articles/s42... in mice and flies
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Igor Iatsenko @iatsenkolab.bsky.social · 04/04/2025
Happy to share our latest minireview on Drosophila symbionts in infection: when a friend becomes an enemy | Infection and Immunity journals.asm.org/doi/10.1128/... #immunity #infection #antimicrobialpeptides #microbiome #Drosophila #AcademicSky #insect #endosymbiont #symbiosis
journals.asm.org
Drosophila symbionts in infection: when a friend becomes an enemy | Infection and Immunity
Occupying the interface between host and environment, host-associated microbes play essential roles in interactions with pathogens and influence disease progression (1–4). Considering that most entry ...
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Alex Gould Lab @alexgouldlab.bsky.social · 04/04/2025
Our latest preprint…Adrien Franchet, Yuhong Jin et al @crick.ac.uk show that circulating glutamine drives brain sparing during nutrient restriction. Great collab with labs of Yaël Grosjean and Ian Gilmore. #metabolism #Drosophila #neuralstemcells www.biorxiv.org/content/10.1...
Glutamine-glutamate intercellular relay model for brain sparing
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François Leulier @francoisleulier.bsky.social · 17/03/2025
The lab will be represented at #Dros25. @longweibai.bsky.social presenting in the Physiology session on Friday at 5pm after I give the intro to his talk in a plenary Thursday morning 😉. #Drosophila #microbiome friends, let’s catch up and go see Longwei ´s talk he has a really cool story to share.
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Igor Iatsenko @iatsenkolab.bsky.social · 14/02/2025
And enjoyed it even more when highlighting it in Cell Host Microbe Free access link here: authors.elsevier.com/a/1kbY9_hwRX...
authors.elsevier.com
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