Assistant Professor at the University of British Columbia studying the gut microbiota and abiotic environment in health and disease.

Joined June 2018
10 Photos and videos
Pinned Tweet
Dear microbiology twitter, what are tricks, assumptions and inside knowledge microbiologists have when culturing bacteria that aren't obvious to non-microbiologists? E.g. motion of air being a source of contamination, not touching the rim of threaded tubes etc.
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CIHR funding rate: 13.6%. Early 2000s: 30% . Canada’s new $1.7B Impact program recruits talent — but without increased Tri-Council base funding, we risk further strain on an already stretched system. We’re calling for $1B over 5 years. Support here: tinyurl.com/33c5av46
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Excited to share our latest publication, led by Dr. Ellie McCallum and Juan Burckhardt!
UBC researchers have engineered gut bacteria that dim their fluorescent glow in the presence of illness. Their findings, published in Cell, could improve gut diagnostics by using bacteria that already live there. Read more: bit.ly/4kfzQaf @ubcscience @UBCNews @CTropini
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You can access the article for free here: authors.elsevier.com/a/1mWb4… And more information is available on the updated preprint: biorxiv.org/content/10.1101/…

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Carolina Tropini, PhD retweeted
UBC researchers have engineered gut bacteria that dim their fluorescent glow in the presence of illness. Their findings, published in Cell, could improve gut diagnostics by using bacteria that already live there. Read more: bit.ly/4kfzQaf @ubcscience @UBCNews @CTropini
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Carolina Tropini, PhD retweeted
A new UBC study could help guide strategies to make colonoscopies safer for people with inflammatory bowel disease, who undergo the procedure more frequently than the general population. @UBCMicroImmuno @CTropini science.ubc.ca/news/2026-01/…
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Carolina Tropini, PhD retweeted
30 Sep 2025
Sculptor: the missing UI for Claude Code 🎨 Imagine running 5 Claudes in parallel, safely in containers, while you stay in flow. Then bring their work straight into your IDE to test/edit together. This is how one developer ships like a team. Try it with Sonnet 4.5!
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Carolina Tropini, PhD retweeted
29 May 2025
CIFAR’s Diet Module, developed by @CTropini, equips educators to think more holistically about how our dietary choices shape the microbiome and influence health outcomes. Learn about this initiative, part of the new Humans & the Microbiome curriculum: cifar.tfaforms.net/4706257
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Carolina Tropini, PhD retweeted
6 May 2025
Introducing CIFAR’s new Public Health Microbiome curriculum! Led by experts @MeghanAzad, @CTropini, @Naama_GZ and Melissa Melby, it bridges cutting-edge microbiome science with real-world public health practice. 🔗 Learn more: cifar.ca/cifarnews/2025/04/1…
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Congratulations to Brian on an awesome 3 minute presentation!!
Last week, MBIM undergraduate students participated in UBC’s first Life Sciences Undergraduate 3-Minute Thesis competition. MBIM student Brian Deng from the Tropini lab (left) was awarded first place for a succinct and compelling narrative on his research. Congratulations to all!
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Carolina Tropini, PhD retweeted
Last week, MBIM undergraduate students participated in UBC’s first Life Sciences Undergraduate 3-Minute Thesis competition. MBIM student Brian Deng from the Tropini lab (left) was awarded first place for a succinct and compelling narrative on his research. Congratulations to all!
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Really excited to share new exciting work led by PhD students McCallum and Burckhardt! We created a new series of syn bio tools in Bacteroides to create non-invasive, real time and sensitive in vivo gut biosensors.
Expanding the Bacteroides synthetic biology toolkit to develop an in vivo intestinal malabsorption biosensor. biorxiv.org/content/10.1101/… #biorxiv_synbio
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Excited to share our preprint led by Dr. Hunter! We show that osmotic shifts, common in the gut due to diet & laxatives, alter T4 phage-E. coli evolution. High osmolality promotes fitness but selects for mucoid, weakly phage-resistant E. coli, with implications for phage therapy!
Osmotic conditions shape fitness gains and resistance mechanisms during E. coli and T4 phage co-evolution biorxiv.org/content/10.1101/… #biorxiv_micrbio
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Carolina Tropini, PhD retweeted
Excited for our new work to be officially published doi.org/10.1016/j.bbi.2024.1…! This study in collaboration with @CTropini 's group reveals that early-life gut inflammation leads to sex-dependent changes in the microbiome-endocrine-brain axis.
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Very excited to share a new paper in collaboration with @AVogelCiernia! We show that early-life inflammation alters sex hormones and mating behavior in mice, alongside shifts in hormone-modifying microbiota members! Great work by Olivia, Claire and others! doi.org/10.1016/j.bbi.2024.1…

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Carolina Tropini, PhD retweeted
We have a job opening for an immunologist in our dept @UBCMicroImmuno! Broad immunology position at the Assistant Prof level in beautiful Vancouver 😊 Apply by Oct 24th! Please repost and spread the word 🙏
The Department of Microbiology and Immunology are hiring 1 Assistant Professor Position! Apply by October 24: academicjobsonline.org/ajo/j…
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Huge congratulations to Dr. Pepin, our labs's first PhD student, for a fantastic defense today! Thank you to Drs. Finlay, Guan, Vallance, Parfrey and David for being part of the examining committee!
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And thank you to the thesis committee (Osborne, Ziels and Vallance) for years of support!!
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Very excited to share our latest preprint! Led by a great student @caclayton99, we show how bowel prep increases vulnerability to Salmonella as well as IBD pathobiont infection. We delve into mechanisms and the many facets of this common gut perturbation. shorturl.at/lOoe4
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Carolina Tropini, PhD retweeted
Join us Thursday, June 13 in MSL 102 for the Effective Science Illustrations workshop with Martin Krzywinski. Learn how to turn complex datasets into beautiful, understandable images. eventbrite.com/e/effective-s…
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