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Activation of l-histidine biosynthesis as a new antibiotic strategy against Mycobacterium tuberculosis - Nature Communications Here, the authors report metabolic activation as a potential antimicrobial strategy against Mycobacterium tuberculosis. They show that supra-physiological activation of L-histidine biosynthesis r...

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A new way to defeat Mycobacterium! 🦠💉

Metabolic overactivation of the L‑histidine biosynthesis pathway in M. tuberculosis impairs its growth and infectivity, revealing a novel bactericidal mechanism for antimycobacterial drug discovery.

#MicroSky

www.nature.com/articles/s41...

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Rhizobacteria opportunistically boost colonization and impair plant fitness by degrading plant-derived coumarins under iron deficiency - Nature Communications Here, the authors show that rhizobacteria can utilize and detoxify simple coumarins secreted by iron-deficient plants, thereby enhancing their root colonization. This, in turn, hampers plant iron acqu...

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Opportunistic Pseudomonas 🦠🌱

Root‑secreted coumarins can be exploited by Pseudomonas NyZ480, whose coumarin‑degrading genes enable opportunistic colonization that worsens plant iron deficiency and impairs overall plant fitness.

#MicroSky

www.nature.com/articles/s41...

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Transmission dynamics of Oropouche virus in Latin America and the Caribbean - Nature Medicine The transmission dynamics of the 2023–2024 Oropouche virus (OROV) outbreak in Brazil (Manaus City) revealed a twofold increase in Oropouche seroprevalence in Manaus, and in a separate historical recon...

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Transmission dynamics of Oropouche virus 🌐

A comprehensive assessment of OROV transmission in 2023-24 epidemic in Manaus City & estimated OROV infections across Latin America and the Caribbean provides better understanding of the OROV burden

#MicroSky
www.nature.com/articles/s41...

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Diet–microbiome associations in 10,068 individuals from the Human Phenotype Project to guide personalized nutrition - Nature Medicine Analyses of more than 10,000 participants from the Human Phenotype Project revealed distinct, persistent food–microbiome associations that can be used to simulate personalized dietary interventions to...

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Diet-microbiome analysis at population scale 💻🦠

Diet shaped gut microbiome composition and function analysed at species-level resolution might enabling long‑term predictions and personalized dietary intervention strategies.

#MicroSky #MicrobiomeSky

www.nature.com/articles/s41...

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Gut microbiota-derived indole-3-lactic acid suppresses anti-PD-1 efficacy in esophageal squamous cell carcinoma Zhou et al. reveal that gut L. salivarius and its metabolite indole-3-lactic acid (ILA) drive anti-PD-1 resistance in ESCC. Mechanistically, ILA activates AhR to suppress NF-κB signaling, triggering t...

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Microbial factor in cancer immunotherapy resistance 🦀🦠💉

Ligilactobacillus salivarius–derived indole-3-lactic acid suppresses anti-tumor T‑cell populations, driving resistance to anti‑PD‑1 therapy in ESCC

#MicroSky #CancerSky #MicrobiomeSky

www.cell.com/cell-host-mi...

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Controlled human influenza infection reveals heterogeneous expulsion of infectious virus into air A platform called MIST enables quantification and genotyping of infectious influenza in expelled respiratory particles, revealing diverse, individual-specific viral loads and aerosolized variants that...

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Influenza in the sneeze 🤧🦠

A modular sampling tunnel captures, cultures, and sequences virus in human respiratory expulsions, revealing wide individual variation and preserved viral diversity in aerosols.

#MicroSky

www.cell.com/cell/fulltex...

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Parallel but distinct adaptive routes in the budding and fission yeasts after 10,000 generations of experimental evolution - Nature Ecology & Evolution Experimental evolution of fission yeast (Schizosaccharomyces pombe) in the same environment as a previous experiment with budding yeast (Saccharomyces cerevisiae) reveals parallel evolution but distin...

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Same destination, different routes 🍄🧫🧪

Following 10,000 generations, parallel evolution occurred in separate yeast species, but took different genetic routes driven largely by transcriptomic and trans‑regulatory differences.

#MicroSky

www.nature.com/articles/s41...

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Improved VSV-Ebola-GP booster vaccination approach promotes antibody affinity maturation and durable anti-Ebola immunity in humans - Nature Immunology A delayed booster of Ebola vaccine induces a stronger and durable antibody response with higher affinity maturation than a single dose, providing long-lasting immunity and enhancing the ability to pre...

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Vaccination boost! 🦠💉

A delayed booster given 18 months after the initial dose generates a stronger, more diverse, and long‑lasting high‑affinity antibody response to Ebola glycoprotein than a single vaccination.

#MicroSky

www.nature.com/articles/s41...

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Host-derived nitrate fuels indole production by Escherichia coli to drive chronic kidney disease progression Chronic kidney disease (CKD) is linked to an elevated fecal abundance of Enterobacteriaceae, but the ecological drivers of this shift and its impact on disease progression remain unclear. The uremic t...

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Host-microbe cycle in chronic kidney disease 🦠⚕️

Inefficient removal of indole derivatives due to kidney dysfunction in mice raises the levels of nitrate that in turn promote indole producing E. coli

#MicroSky

www.science.org/doi/10.1126/...

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VIBRANT: A phase 1 randomized trial of multi-strain vaginal L. crispatus live biotherapeutic products in people with bacterial vaginosis In this phase 1 randomized trial of women with bacterial vaginosis in South Africa and the United States, Potloane et al. show that a multi-strain vaginal Lactobacillus crispatus live biotherapeutic administered for just 3–7 days following antibiotics can achieve vaginal colonization lasting up to 12 weeks.

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Live biotherapeutics for bacterial vaginosis 🚺🦠

A short course of vaginal Lactobacillus crispatus biotherapeutics after antibiotics safely achieved sustained colonization in many women recovering from bacterial vaginosis.

#MicroSky

www.cell.com/cell-host-mi...

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Microbial upcycling of plastic waste to levodopa - Nature Sustainability The production of high-value chemicals can involve energy-intensive processes, necessitating sustainable production strategies. Here the authors present a circular bioeconomy approach, upcycling plast...

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From trash to treasure 🦠🔧♻️

Engineered E. coli convert the plastic PET to levodopa - a frontline medication for Parkinson’s disease.

#MicroSky

www.nature.com/articles/s41...

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An engineered E. coli strain sustains intratumoral nitric oxide production to boost effectiveness of tumor immunotherapy - Nature Biotechnology An engineered Escherichia coli Nissle 1917 strain carrying a synthetic arginine–nitric oxide (NO) circuit enables sustained intratumoral NO production that promotes vascular normalization and immune r...

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Engineered E. coli boosts tumour immunotherapy 🦠🔧💉

A synthetic arginine–nitric oxide (NO) circuit enables sustained intratumoral NO production that promotes vascular normalization and immune reprogramming in mouse models

#MicroSky

www.nature.com/articles/s41...

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Highly mutagenic continuous evolution in E. coli using a Φ29-based orthogonal replication system - Nature Biotechnology Mutational rates of bacterial evolution are increased using an error-prone orthogonal system.

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Sending evolution into overdrive 🔧🦠

A Φ29‑based DNA replication system in E. coli enables stable and targeted hypermutation achieving evolution of enzyme activities within days

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www.nature.com/articles/s41...

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Auto-crosslinking sporesilk fibers promote endospore and Cry toxin clustering - Nature Communications Authors reveal that protein nanofibrils govern assembly of bacterial spores and extrasporal toxins into insecticidal aggregates. Spores and parasporal bodies are incased in a “sporesilk” matrix that d...

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No-GMO enhanced Bt toxin 🦠🌱🪲

Naturally occurring 'sporesilk' matrix coating the Bacillus thuringiensis toxin crystals boosts insecticidal activity providing a non-GMO pest biocontrol.

#MicroSky

www.nature.com/articles/s41...

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Acinetobacter baumannii’s lifestyle includes soil-dwelling colonization of decaying plant material and airborne spread - Nature Communications Little is known about the ecology and evolution of the nosocomial pathogen Acinetobacter baumannii outside the hospital. Here, Wilharm et al. show that the lifestyle of A. baumannii includes soil-dwel...

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The versatile Acinetobacter baumannii! 🦠

The dreaded pathogen naturally occupies soil and airborne niches that underpin its recalcitrance and human contact may have shaped its evolution.

#MicroSky

www.nature.com/articles/s41...

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Candida albicans synergizes with Fusobacterium nucleatum in colorectal cancer progression via the Flo9-RadD interaction How does other types of microbe like fungi influence tumor-promoting role of Fusobacterium nucleatum? In this study, Li et al. establish that commensal fungi facilitate translocation of pro-tumor bact...

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Multi-kingdom microbial interplay in cancer 🦠🍄🦀⚕️

Candida albicans synergizes with Fusobacterium nucleatum in colorectal cancer offering a potential therapeutic target via L‑arginine disruption.

#MicroSky #CancerSky

www.cell.com/cancer-cell/...

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Antibiotic use and gut microbiome composition links from individual-level prescription data of 14,979 individuals - Nature Medicine Using individual-level data from the Swedish Prescribed Drug Register and fecal metagenomes of 14,979 individuals in Sweden, the authors examined the association between oral antibiotic use over 8 yea...

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Antibiotics in the long run ⌛💊🦠

Antibiotic use shows lasting associations with reduced gut microbial diversity for up to 8 years, indicating long-term impacts on the adult gut microbiome.

#MicroSky #MicrobiomeSky

www.nature.com/articles/s41...

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The MicrobeAtlas database: Global trends and insights into Earth’s microbial ecosystems MicrobeAtlas (www.microbeatlas.org) is an integrated, reference-based resource for truly planet-wide microbiomics, analyzing hundreds of thousands of microbial lineages across diverse environments, co...

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A Microbial Atlas 🦠🗺️

MicrobeAtlas unifies >2 million microbiome samples into a resource that enables consistent cross‑study comparisons and ecological contextualization of both known and newly discovered species.

#MicroSky #MicrobiomeSky

www.cell.com/cell/fulltex...

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Bringing the genetically minimal cell to life on a computer in 4D Simulating the complete cell cycle of the minimal cell provides a platform to understand the progression of complete states over time. The spatial heterogeneity of the intracellular environment can st...

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Simulating a bacterium 💻🦠

A 4D whole-cell model of the minimal bacterium JCVI‑syn3A simulates its ~100‑minute cell cycle to reproduce experimental measurements and predict behaviours

#MicroSky

www.cell.com/cell/fulltex...

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Genetically engineered eye-colonizing microbes that deliver the anti-inflammatory cytokine interleukin-10 enhance corneal tissue repair Engineered bacteria provide a platform for localized delivery of therapeutics. Here, Shane et al. show that an engineered eye commensal can accelerate corneal wound healing by promoting epithelial wou...

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Therapeutic eye bacteria 🦠👁️🔧

Engineered eye‑colonizing bacteria deliver IL‑10 long‑term to reduce inflammation, and accelerate corneal wound healing.

#MicroSky

www.cell.com/cell-reports...

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Meta-analysis of the uncultured gut microbiome across 11,115 global metagenomes reveals a candidate signature of health Silva et al. perform a global analysis of over 11,000 gut microbiomes and reveal that uncultured bacteria are key markers of gut health. The uncultured genus CAG-170 is strongly linked to low gut dysb...

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A microbial signature of health! 🦠⚕️

A large meta-analysis highlights the importance of previously unknown and uncultured gut bacteria in maintaining human health

#MicroSky

www.cell.com/cell-host-mi...

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Dihydroxyhexanoic acid biosynthesis controls turgor in pathogenic fungi Many plant pathogenic fungi penetrate host surfaces mechanically, using turgor pressure generated by specialized infection cells called appressoria. These appressoria develop semipermeable cell walls ...

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Fungi host invasion! 🍄🌱

Mechanism of fungal turgor generation, that aids mechanical host penetration by fungus could present new targets for disease control in plants

#MicroSky

www.science.org/doi/10.1126/...

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Transmission of MPXV from fire-footed rope squirrels to sooty mangabeys - Nature An outbreak of MPXV in sooty mangabeys in Côte d’Ivoire was linked to MPXV-infected fire-footed rope squirrels, providing direct evidence of interspecies transmission and indicating risk for zoonotic ...

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Mpox transmission caught in action! 🐿️🦠🐒

A wild squirrel-to-mangabey interspecies transmission highlights the risk to the population that hunts these animals for food

#MicroSky

www.nature.com/articles/s41...

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Mucosal vaccination in mice provides protection from diverse respiratory threats Traditional vaccines target specific pathogens, limiting their scope against diverse respiratory threats. We describe an intranasal liposomal formulation combining toll-like receptor (TLR) 4 and 7/8 l...

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A broad respiratory vaccine! 🦠🫁💉

An intranasal liposomal vaccine combining TLR4 and TLR7/8 ligands with ovalbumin produced broad and durable respiratory protection in mice

#MicroSky

www.science.org/doi/10.1126/...

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Oxygen metabolism in descendants of the archaeal-eukaryotic ancestor - Nature Sequencing of marine sediments finds 136 newly identified Heimdallarchaeia and several novel lineages, and indicates that Heimdallarchaeia evolved distinct metabolic capabilities from other Asgar...

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Aerobic archaeal-eukaryotic ancestor? 🦠🫁

The ancestor of eukaryotes may have combined hydrogen metabolism with aerobic respiration, shaping early cellular complexity.

#MicroSky

www.nature.com/articles/s41...

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Mucosal vaccination clears Clostridioides difficile colonization - Nature Mucosal administration of a multivalent, adjuvanted vaccine against Clostridioides difficile promoted bacterial clearance and protected against morbidity, mortality, tissue damage and recurrence ...

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C. diff vaccine! 🦠💉

A protective mucosal vaccine formulation that provides sterilizing immunity to clear C. difficile from the host.

#MicroSky

www.nature.com/articles/s41...

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Fecal microbiota transplantation plus immunotherapy in non-small cell lung cancer and melanoma: the phase 2 FMT-LUMINate trial - Nature Medicine In a phase 2 trial evaluating healthy donor fecal microbial transplantation plus either anti-PD-1 in patients with non-small cell lung cancer or anti-PD-1 and anti-CTLA-4 in patients with melanoma, en...

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FMT for cancers in clinic! 💩🦠🦀⚕️

Three different clinical trials report activity of faecal microbiota transplant against cancer

#MicroSky #CancerSky

www.nature.com/articles/s41...
www.nature.com/articles/s41...

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Divergent tumor immunity determined by bacteria-cancer cell engagement In a preclinical breast cancer metastasis model, the same bacteria strain, when present intracellularly versus extracellularly, exerts opposing effects on tumor immunity by inducing divergent neutroph...

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It matters where cancer-associated bacteria are! 🦀💊

The spatial localization of bacteria associated with tumors dictates opposite immune outcomes - driving metastasis or triggering antitumour neutrophil activity

#MicroSky

www.cell.com/cell/fulltex...

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Butyrolactol A enhances caspofungin efficacy via flippase inhibition in drug-resistant fungi Chen et al. identify the natural product butyrolactol A as an inhibitor of the phospholipid flippase Apt1-Cdc50, which it locks in a nonfunctional state. By disrupting membrane homeostasis and enhanci...

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Enhancing anti-fungals! 💊🍄

A natural‑product butyrolactol A restores caspofungin activity against intrinsically resistant Cryptococcus neoformans and multidrug‑resistant Candida auris

#MicroSy

www.cell.com/cell/fulltex...

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