Gregory P Donaldson
@gdonaldson.bsky.social
Assistant Professor, UCLA Microbiology Immunology & Molecular Genetics
Bacteroides, IgA, epithelia
www.donaldsonlab.com
Bacteroides, IgA, epithelia
www.donaldsonlab.com
Reposted by Gregory P Donaldson
Excited to share new work by Guli Agirman + co that identifies a direct mechanism linking gut microbial imidazole propionate to stress! 🧠🦠 Btw this image was made by Nano Banana Pro 🍌. First time I've gotten a model to accurately generate a science graphic 🤯 authors.elsevier.com/a/1mA5M6t8JE...
November 25, 2025 at 5:45 PM
Excited to share new work by Guli Agirman + co that identifies a direct mechanism linking gut microbial imidazole propionate to stress! 🧠🦠 Btw this image was made by Nano Banana Pro 🍌. First time I've gotten a model to accurately generate a science graphic 🤯 authors.elsevier.com/a/1mA5M6t8JE...
Reposted by Gregory P Donaldson
Very excited to share our latest work in Science on metagenomic editing (MetaEdit) of the gut microbiome in vivo & directly modifying unculturable immune-modulatory SFB bug in the small intestine. 🦠🧬🛠️
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Metagenomic editing of commensal bacteria in vivo using CRISPR-associated transposases
Although metagenomic sequencing has revealed a rich microbial biodiversity in the mammalian gut, methods to genetically alter specific species in the microbiome are highly limited. Here, we introduce ...
www.science.org
November 13, 2025 at 8:53 PM
Very excited to share our latest work in Science on metagenomic editing (MetaEdit) of the gut microbiome in vivo & directly modifying unculturable immune-modulatory SFB bug in the small intestine. 🦠🧬🛠️
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Gregory P Donaldson
UCLA alumnus Fred Ramsdell received the @nobelprize.bsky.social today in Physiology or Medicine — our 17th Nobel Prize for an alum or faculty member, and the third prize in five years for a Bruin. ucla.in/4oaVlKd #nobelprize #academicsky 🧪
October 6, 2025 at 3:23 PM
UCLA alumnus Fred Ramsdell received the @nobelprize.bsky.social today in Physiology or Medicine — our 17th Nobel Prize for an alum or faculty member, and the third prize in five years for a Bruin. ucla.in/4oaVlKd #nobelprize #academicsky 🧪
Reposted by Gregory P Donaldson
Happy to share this paper in final form rdcu.be/eH8tj, with more info on neuronal responses and potential mechanism of actions! The results suggest that there is neural interoception of microbial metabolic state 🧠🦠 We hope they can inspire more work in this area!
September 25, 2025 at 3:36 PM
Happy to share this paper in final form rdcu.be/eH8tj, with more info on neuronal responses and potential mechanism of actions! The results suggest that there is neural interoception of microbial metabolic state 🧠🦠 We hope they can inspire more work in this area!
Reposted by Gregory P Donaldson
If you're a UCLA researcher (PI, grad student, etc) with an NSF, NIH or other suddenly suspended grant, please email or DM me.
I'm trying to confirm what the suspension letters say and how extensive the NIH suspensions are.
Email: Mikhail at calmatters dot org
I'm trying to confirm what the suspension letters say and how extensive the NIH suspensions are.
Email: Mikhail at calmatters dot org
I chased this all day:
UCLA research grants suspended after Trump administration faulted campus for antisemitism
calmatters.org/education/hi...
UCLA research grants suspended after Trump administration faulted campus for antisemitism
calmatters.org/education/hi...
UCLA research grants suspended after Trump administration faulted campus for antisemitism
The Justice Department issued UCLA a notice of violation for not responding “adequately” to complaints about antisemitism.
calmatters.org
August 1, 2025 at 3:35 PM
If you're a UCLA researcher (PI, grad student, etc) with an NSF, NIH or other suddenly suspended grant, please email or DM me.
I'm trying to confirm what the suspension letters say and how extensive the NIH suspensions are.
Email: Mikhail at calmatters dot org
I'm trying to confirm what the suspension letters say and how extensive the NIH suspensions are.
Email: Mikhail at calmatters dot org
Reposted by Gregory P Donaldson
Breaking: NSF is suspending roughly 300 grants with UCLA, following a DOJ finding on Tuesday that the university violated Title VI by "creating a hostile educational environment for Jewish and Israeli students."
July 31, 2025 at 5:53 PM
Breaking: NSF is suspending roughly 300 grants with UCLA, following a DOJ finding on Tuesday that the university violated Title VI by "creating a hostile educational environment for Jewish and Israeli students."
Reposted by Gregory P Donaldson
I am seeking a postdoc for my group at UCLA. We work at the intersection of population genetics x microbiome (garud.eeb.ucla.edu). If interested, please message me!
Garud Lab
garud.eeb.ucla.edu
July 22, 2025 at 5:51 PM
I am seeking a postdoc for my group at UCLA. We work at the intersection of population genetics x microbiome (garud.eeb.ucla.edu). If interested, please message me!
Reposted by Gregory P Donaldson
CCII's Vice Director, Sidonia Fagarasan, and the faculty of this year's RIKEN IMS-JSI Summer School & Symposium.
Sidonia spoke about the biochemical dialog between immune cells mediating anti-cancer responses
www.ims.riken.jp/events/rcais...
Sidonia spoke about the biochemical dialog between immune cells mediating anti-cancer responses
www.ims.riken.jp/events/rcais...
July 17, 2025 at 7:22 AM
CCII's Vice Director, Sidonia Fagarasan, and the faculty of this year's RIKEN IMS-JSI Summer School & Symposium.
Sidonia spoke about the biochemical dialog between immune cells mediating anti-cancer responses
www.ims.riken.jp/events/rcais...
Sidonia spoke about the biochemical dialog between immune cells mediating anti-cancer responses
www.ims.riken.jp/events/rcais...
Reposted by Gregory P Donaldson
The Xue lab at UC Irvine is looking for a staff scientist to support our work investigating how microbes interact and evolve in the gut microbiome! Open to a wide range of previous experience levels, see ad for more.
recruit.ap.uci.edu/JPF09601
recruit.ap.uci.edu/JPF09601
Junior, Assistant, or Associate Specialist – Xue Lab
University of California, Irvine is hiring. Apply now!
recruit.ap.uci.edu
July 17, 2025 at 8:32 PM
The Xue lab at UC Irvine is looking for a staff scientist to support our work investigating how microbes interact and evolve in the gut microbiome! Open to a wide range of previous experience levels, see ad for more.
recruit.ap.uci.edu/JPF09601
recruit.ap.uci.edu/JPF09601
Reposted by Gregory P Donaldson
Check it out, a great opportunity for people looking to start their own lab in Japan 👇
www.ccii.med.kyoto-u.ac.jp/en/careers-e...
www.ccii.med.kyoto-u.ac.jp/en/careers-e...
Open Positions｜Careers｜Center for Cancer Immunotherapy and Immunobiology
Open Positions
www.ccii.med.kyoto-u.ac.jp
July 2, 2025 at 6:32 AM
Check it out, a great opportunity for people looking to start their own lab in Japan 👇
www.ccii.med.kyoto-u.ac.jp/en/careers-e...
www.ccii.med.kyoto-u.ac.jp/en/careers-e...
”replication crisis” has always been hyperbole. Scientists ALWAYS argued, called each other frauds, and eventually land on consensus. A lot of what van Leeuwenhoek observed in the late 1600s was NOT REPRODUCIBLE because nobody could make lenses like him. But he was right, about cells, and bacteria.
There is no "science-wide replication crisis" because every word in that phrase carries unfounded assumptions. 🧵
1. There is no evidence that progress has generally stalled in the sciences. Also, no one has actually tried to estimate replicability across fields.
1. There is no evidence that progress has generally stalled in the sciences. Also, no one has actually tried to estimate replicability across fields.
June 4, 2025 at 2:05 AM
”replication crisis” has always been hyperbole. Scientists ALWAYS argued, called each other frauds, and eventually land on consensus. A lot of what van Leeuwenhoek observed in the late 1600s was NOT REPRODUCIBLE because nobody could make lenses like him. But he was right, about cells, and bacteria.
Reposted by Gregory P Donaldson
When I write "Utilize"
February 22, 2025 at 12:17 PM
When I write "Utilize"
Goin back to Cali. Find me at UCLA. I’m recruiting at all levels. You can learn more at our lab website: www.donaldsonlab.com
We have an advertisement up for a technician (SRA) position:
jobs.ucla.edu/jobs/5998
We have an advertisement up for a technician (SRA) position:
jobs.ucla.edu/jobs/5998
Gregory P Donaldson, PhD, Assistant Professor at MIMG (starting January 2025) | Microbiology Immunology & Molecular Genetics
Please join us as we welcome Dr. Donaldson to UCLA in his new role as assistant professor in the Department of Microbiology, Immunology, and Molecular Genetics.
mimg.ucla.edu
December 10, 2024 at 4:09 PM
Goin back to Cali. Find me at UCLA. I’m recruiting at all levels. You can learn more at our lab website: www.donaldsonlab.com
We have an advertisement up for a technician (SRA) position:
jobs.ucla.edu/jobs/5998
We have an advertisement up for a technician (SRA) position:
jobs.ucla.edu/jobs/5998
Reposted by Gregory P Donaldson
Hi friends new and old! I study how microbes interact and evolve in complex communities like the human gut microbiome.🦠🧬💩 I'm thrilled to share that I'm starting a lab at UC Irvine in April 2025 and am recruiting at all levels - please spread the word! kxuelab.com More about my work below...🧵1/n
Xue lab at UC Irvine
Ecology and evolution in the human gut microbiome
kxuelab.com
November 19, 2024 at 6:57 PM
Hi friends new and old! I study how microbes interact and evolve in complex communities like the human gut microbiome.🦠🧬💩 I'm thrilled to share that I'm starting a lab at UC Irvine in April 2025 and am recruiting at all levels - please spread the word! kxuelab.com More about my work below...🧵1/n
Still thinking about gut biogeography.
Gut biogeography of the bacterial microbiota - Nature Reviews Microbiology
The gut microbiota has a strong impact on host physiology. In this Review, Mazmanian and colleagues describe the mechanisms that control the biogeography of bacteria in the gut and discuss the importa...
www.nature.com
November 16, 2024 at 3:51 PM
Still thinking about gut biogeography.