Scholar

Kiran Raosaheb Patil

H-index: 52
Biology 73%
Engineering 9%
tbharat-lab.bsky.social
Sub-cellular chemical mapping in bacteria using correlated cryogenic electron and mass spectrometry imaging

Congrats Hannah Ochner and authors on this important paper! Strong collaboration with @kiranrpatil.bsky.social

www.biorxiv.org/cgi/content/...
@mrclmb.bsky.social @wellcometrust.bsky.social

Reposted by: Kiran Raosaheb Patil

molsystbiol.org
@skamrad.bsky.social @kiranrpatil.bsky.social show xenobiotics impact growth of gut bacteria and their metabolic homeostasis by affecting amine metabolism ➡️ www.embopress.org/doi/full/10....
kiranrpatil.bsky.social
p.s. the manuscript also reports a screen of 42 widespread pollutants x 14 gut bacteria for bioaccumulation and biotransformation– we followed up on PFAS because of the major risk they pose to our and environmental health.
kiranrpatil.bsky.social
Our study provides a new window into understanding the toxicokinetics of PFAS and a step towards development of scalable biotechnological solutions for PFAS removal. Thanks to fantastic team members, especially first-author Anna Lindell, and all collaborators for making this possible.
Dr. Anna Lindell, first author of the study
kiranrpatil.bsky.social
Last but not least, we show that bioaccumulation happens within mouse gut environment and high-accumulating bacterial communities accelerate PFAS clearance through feces. Thanks to @lisamaierlab.bsky.social
Mice colonised with human gut bacteria show increased PFAS excretion
kiranrpatil.bsky.social
We also have thermal-proteomic-profiling (TPP, @savitski-lab.bsky.social ) and metabolomic data as well as laboratory evolution experiments supporting intra-cellular localisation of these molecules and surprising high tolerance of the accumulating bacteria cells.
kiranrpatil.bsky.social
PFAS was thought to interact only passively with cell membranes (and thus get stuck there). Our genetic analysis shows involvement of efflux pumps and thus implies active transport. We should not repeat the mistake of assuming passive interactions - Biology is complex and full of surprises!
Artist's illustration of PFAS bioaccumulation. Peter Northrop
kiranrpatil.bsky.social
This feat is achieved because these molecules aggregate in dense clumps, leaving the cellular machinery unaffected. These clumps are visible at single cell resolution with cryo-FIB-SIMS. @tbharat-lab.bsky.social
Cryogenic FIB-SIMS shows intracellular PFAS aggregates
kiranrpatil.bsky.social
Despite their surfactant-like properties, PFAS get inside the cells and can accumulate in amounts comparable to native metabolites; without much affecting the growth!
kiranrpatil.bsky.social
The study is the first report of PFAS bioaccumulation by gut bacteria. Through extensive screening, we discovered bioaccumulation by a group of prevalent human gut bacteria and across a wide concentration range (as low as 0.34 nM).
Bacteroides have remarkable capacity to accumulate PFAS
kiranrpatil.bsky.social
Excited to share some key details on our latest research in @natmicrobiol.nature.com reporting intra-cellular accumulation of #PFAS (aka forever chemicals) by certain human gut bacteria. #microsky #mevosky #microbiomesky
www.nature.com/articles/s41...
Human gut bacteria bioaccumulate PFAS
kiranrpatil.bsky.social
Great collaboration with @savitski-lab.bsky.social! Thank you for this impactful collaboration!
kiranrpatil.bsky.social
thank you @tbharat-lab.bsky.social lab! So cool to see the PFAS inside single cells with your technology!

Reposted by: Kiran Raosaheb Patil

mrc-tu.bsky.social
Researchers in the Patil Lab have discovered that certain species of gut bacteria can absorb PFAS. Boosting these species in our gut microbiome could be a new way to protect us from the harmful effects of PFAS.

Read more here: buff.ly/4FsVFsS

@kiranrpatil.bsky.social @indraroux.bsky.social
3D rendering of a bacterium with flagella cut open to show clumps of PFAS molecules inside along with the bacteria's own cellular machinery.
kiranrpatil.bsky.social
Latest study from the lab is online today (and another will be out tomorrow, stay tuned:)). We profiled effect of >1700 chemicals (drugs, pesticides,...) on secretion of amines (involved in gut-brain and gut-immune axis. ) by human gut bacteria. Brilliant work by @skamrad.bsky.social and Tara Davis
mrc-tu.bsky.social
Stephan Kamrad and Tara Davis in the Patil lab at the MRC Toxicology Unit have identified that some drugs and environmental contaminants alter gut bacterial amine metabolism.

Find out more here: buff.ly/5akzsgs
@kiranrpatil.bsky.social @skamrad.bsky.social

Reposted by: Kiran Raosaheb Patil

mrc-tu.bsky.social
Stephan Kamrad and Tara Davis in the Patil lab at the MRC Toxicology Unit have identified that some drugs and environmental contaminants alter gut bacterial amine metabolism.

Find out more here: buff.ly/5akzsgs
@kiranrpatil.bsky.social @skamrad.bsky.social

Reposted by: Kiran Raosaheb Patil

kstapornwongkul.bsky.social
📢 Fresh off the press and featuring new exciting experiments! 🧪
We show how glycolytic activity instructs germ layer proportions through regulation of Nodal and Wnt signaling - happy to finally share this 😊
doi.org/10.1016/j.st...

B2B with @jesseveenvliet.bsky.social lab: doi.org/10.1016/j.st... 🤩
kiranrpatil.bsky.social
Sweeteners are so common in food and drinks. New work expanding our knowledge base of sweetener-bacteria interactions 👇🏽. Kudos to @sonjablasche.bsky.social @indraroux.bsky.social and others from our lab
kiranrpatil.bsky.social
Congratulations to talented @naomiirisvdberg.bsky.social for successfully passing her PhD exam! Very proud of the latest PhD graduate from my lab and the entire team! 🙌🎉🍾

References

Fields & subjects

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