Tomoaki Sobajima
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tomogolgier.bsky.social
Tomoaki Sobajima
@tomogolgier.bsky.social
Postdoc in the Francis Barr lab, Department of Biochemistry, University of Oxford

#cellcycle #mitosis #membranetraffic

https://scholar.google.co.uk/citations?hl=en&user=yUcbgLoAAAAJ&view_op=list_works&sortby=pubdate
https://twitter.com/tomogolgier
Pinned
Huge thanks to members of the Barr Lab, EMBOJ Editor Hartmut @hvodermaier.bsky.social and all reviewers!
WIP1 mutations suppress DNA damage-triggered bypass of the mitotic timer
@tomogolgier.bsky.social, Francis Barr et al show that prolonged delays in mitosis & G2 DNA-damage stress cause G1 cell-cycle arrest via different routes distinctly affected by cancer mutations
www.embopress.org/doi/full/10....
Reposted by Tomoaki Sobajima
Many of you know, we lost Béla Novák this year. John Tyson, Francis Barr & I tried to capture his wonderful character & great mind so that those that didn't know him can see what a fantastic person he was.

Thanks to @jcellsci.bsky.social for publishing.

journals.biologists.com/jcs/article/...
Béla Novák (1956–2025) – a legacy of scientific discovery and personal charm
In February 2025, we were shocked and deeply saddened to hear about the death of Béla Novák, Professor in Integrative Systems Biology at the University of Oxford, UK, and a beloved grandfather, father...
journals.biologists.com
October 9, 2025 at 12:59 PM
Reposted by Tomoaki Sobajima
☕️Fulcher et al. show that #MDM2 times mitosis through self-catalysed ubiquitination and proteasomal destruction, triggering G1 arrest following delays in #mitosis associated with chromosome instability and #aneuploidy.
bit.ly/3EXaAoN
MDM2 functions as a timer reporting the length of mitosis - Nature Cell Biology
Fulcher et al. show that MDM2 times mitosis through self-catalysed ubiquitination and proteasomal destruction, triggering G1 arrest following delays in mitosis associated with chromosome instability and aneuploidy.
bit.ly
February 26, 2025 at 9:17 PM
Nice nice.
October 4, 2025 at 5:08 PM
Reposted by Tomoaki Sobajima
@mariasecrier.bsky.social & I are looking for an enthusiastic & excellent data scientist for a 4-year postdoc to understand cell cycle dysregulation in cancer.

Deadline 15th October. Get in touch if you have any questions.

Please repost!

More details:
www.imperial.ac.uk/jobs/search-...
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
www.imperial.ac.uk
September 18, 2025 at 8:02 PM
Reposted by Tomoaki Sobajima
New work from the lab! 🔬

We report that DDIAS is a new component of the mitotic CIP2A-TOPBP1 pathway of genome maintenance. 1/n

www.biorxiv.org/content/10.1...
Mitotic single-stranded DNA suppression by DDIAS
Incomplete DNA replication and chromosome breakage during mitosis pose major threats to chromosome segregation. The CIP2A-TOPBP1 complex acts to mitigate this peril, but its exact role is not yet unde...
www.biorxiv.org
September 10, 2025 at 4:50 PM
Reposted by Tomoaki Sobajima
Multiple golgins are required to support extracellular matrix secretion, modification and assembly, say George Thompson, Nicola Stevenson and colleagues @bristoluni.bsky.social: rupress.org/jcb/article/...

#Organelles #Biochemistry #Trafficking #Golgi
August 25, 2025 at 1:45 PM
Reposted by Tomoaki Sobajima
Review in issue 15:
Midbrain organoid models of dopaminergic system
WIP1 affects the mitotic timer
Legionella affects autophagy by SNARE phoshoribosyl-ubiquitination
Dysfunctional mitochondria trap proteins between their membranes
Cover by @meunierlab.bsky.social
www.embopress.org/toc/14602075...
August 1, 2025 at 8:06 AM
Our co-author Luke nicely describes our EMBO J paper on LinkedIn - have a look:
www.linkedin.com/posts/luke-j...
July 15, 2025 at 7:40 AM
Huge thanks to members of the Barr Lab, EMBOJ Editor Hartmut @hvodermaier.bsky.social and all reviewers!
WIP1 mutations suppress DNA damage-triggered bypass of the mitotic timer
@tomogolgier.bsky.social, Francis Barr et al show that prolonged delays in mitosis & G2 DNA-damage stress cause G1 cell-cycle arrest via different routes distinctly affected by cancer mutations
www.embopress.org/doi/full/10....
June 24, 2025 at 7:02 AM
Wait for a follow-up paper from “Team Timer” being published online soon. There will be lots of (colourful) cell tracking out there 🔜
June 20, 2025 at 9:02 PM
Reposted by Tomoaki Sobajima
Oxr1 and Ncoa7 regulate V-ATPase to achieve optimal pH for glycosylation within the Golgi apparatus and trans-Golgi network | PNAS www.pnas.org/doi/10.1073/...
Oxr1 and Ncoa7 regulate V-ATPase to achieve optimal pH for glycosylation within the Golgi apparatus and trans-Golgi network | PNAS
Maintenance of pH within membranous organelles is crucial for cellular processes such as posttranslational modifications, ligand–receptor interacti...
www.pnas.org
May 31, 2025 at 11:51 AM
Reposted by Tomoaki Sobajima
During #mitosis, before assembling the mitotic spindle, the early mouse embryo lacking #centrosomes uses #actin rather than #microtubules for chromosome congression 👀👇🏼
I’m excited to announce that my paper describing non-canonical mitotic mechanisms in the early mouse embryo is out in @science.org ! (link at end of 🧵)
May 24, 2025 at 11:03 AM
Reposted by Tomoaki Sobajima
Nature reports on the momentum that is building for PROTAC treatments, which eliminate disease-causing proteins, including those responsible for difficult-to-treat childhood cancers. 🧪
How protein-slayer drugs could beat some of the cruellest cancers
Momentum is building for PROTAC treatments that eliminate disease-causing proteins, including those responsible for difficult-to-treat childhood cancers.
go.nature.com
May 10, 2025 at 4:19 PM
Reposted by Tomoaki Sobajima
Genetically altered 'woolly mice' express several mammoth-like traits, including the animal's iconic coat. The cuteness, meanwhile, is a complete coincidence. That and more of the best in @science.org and science in this edition of #ScienceAdviser: www.science.org/content/arti... 🧪
March 4, 2025 at 3:21 PM
Reposted by Tomoaki Sobajima
The Barr lab @ox.ac.uk has discovered the important role of cell division timing mechanisms in the formation of cancer. The research, funded by Cancer Research UK, provides valuable insight into how damaged cells are normally stopped from growing. ⬇️ bit.ly/202502-barr
Cancer beats the clock
New research unveils the important role of cell division timing mechanisms in the formation of cancer
bit.ly
February 12, 2025 at 1:44 PM
Reposted by Tomoaki Sobajima
Congratulations to Francis Barr and his team!
January 9, 2025 at 12:24 PM