Mathieu Quesnel-Vallières
rna-ken.bsky.social
Mathieu Quesnel-Vallières
@rna-ken.bsky.social
Cancer & RNA splicing researcher (he/him)
https://mqvlab.com

Assistant Professor
Department of Immunology and Cell Biology
Université de Sherbrooke
Pinned
If you wonder what splice isoforms exist for your gene(s) of interest, or if you are interested in exploring tissue/cancer-specific splicing, we have a new tool for that.

#RNA #splicing #cancer
MAJIQlopedia: an encyclopedia of RNA splicing variations in human tissues and cancer
Abstract. Quantification of RNA splicing variations based on RNA-Sequencing can reveal tissue- and disease-specific splicing patterns. To study such splicing va
academic.oup.com
Reposted by Mathieu Quesnel-Vallières
“We fundamentally believe that publishing less – but better – is essential for the health of the entire research system worldwide,” the authors of the report state.
Less is more: academic publishing needs ‘radical change,’ Cambridge press report concludes
Academic publishing needs “renewed focus and collective action” to embrace new approaches and ensure the future of the industry, concludes a report from Cambridge University Press, released last we…
retractionwatch.com
October 21, 2025 at 7:11 PM
Open rank tenure-track position in comp bio at the University of Montreal. Great environment, great position. @futurepislack.bsky.social

medecine.umontreal.ca/wp-content/u...
medecine.umontreal.ca
October 3, 2025 at 9:24 PM
Reposted by Mathieu Quesnel-Vallières
Last night, Al-Helou hospital in #Gaza City, supported by MSF, sustained severe collateral damage from nearby attacks. This came despite multiple assurances from Israeli forces that the hospital was not in danger.
September 29, 2025 at 6:48 PM
Reposted by Mathieu Quesnel-Vallières
We have an open Assistant Professor position in Evolutionary Cell and Molecular Biology in the @weillinstitute.bsky.social at Cornell University. academicjobsonline.org/ajo/jobs/30607
Cornell University, Molecular Biology & Genetics
Job #AJO30607, WDR-00055221 Assistant Professor, Molecular Biology & Genetics, Cornell University, Ithaca, New York, US
academicjobsonline.org
September 22, 2025 at 3:25 PM
Reposted by Mathieu Quesnel-Vallières
Pls share: Distributing this advertisement from EMBL for a group leader position at their Hamburg, Germany site:

embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
Group Leader - EMBL Hamburg
Are you ready to lead groundbreaking research in Infection Biochemistry? Join us at EMBL Hamburg! We are recruiting outstanding scientists to establish independent research groups tackling fundamental...
embl.wd103.myworkdayjobs.com
September 2, 2025 at 3:00 PM
I just described one of my aims as being "functional with translational undercurrents" in a grant that I'm writing, as if I were describing a fine wine, and for this sole reason I already consider this application to be successful.
August 31, 2025 at 9:23 PM
Reposted by Mathieu Quesnel-Vallières
JOB ALERT 🚨 We are hiring TWO principal investigators in cell, molecular, systems, or chemical biology in Toronto, Canada at @sinaihealth.bsky.social. We provide a generous startup, fully funded salary and academic appointment at U of Toronto.

www.nature.com/naturecareer...

Please repost!
August 28, 2025 at 6:34 AM
My fabulous lab is raising funds to support the @src-crs.bsky.social and the Université de Sherbrooke Cancer Research Institute.

Join us on September 13 or consider donating to our team to help us design the next generation of cancer treatments!

recherche-cancer-research.crs-src.ca/goto/MQV_lab
August 27, 2025 at 4:51 PM
Reposted by Mathieu Quesnel-Vallières
RNA is far more than a messenger.

Its structures regulate, evolve, and catalyze — carrying out functions DNA alone cannot.

But predicting #RNA structure from sequence is still extremely difficult.

In our recently published paper in @narjournal.bsky.social we present a way forward.

🧵 ⤵️
August 25, 2025 at 3:02 AM
Reposted by Mathieu Quesnel-Vallières
New paper:
More than 2700 human 3′UTRs are highly conserved. These 3′UTRs are essential components in mRNA templates, as their deletion decreases protein activity without changing protein abundance. Highly conserved 3′UTRs help the folding of proteins with long IDRs.

www.biorxiv.org/content/10.1...
mRNA 3′UTRs chaperone intrinsically disordered regions to control protein activity
More than 2,700 human mRNA 3′UTRs have hundreds of highly conserved (HC) nucleotides, but their biological roles are unclear. Here, we show that mRNAs with HC 3′UTRs mostly encode proteins with long intrinsically disordered regions (IDRs), including MYC, UTX, and JMJD3. These proteins are only fully active when translated from mRNA templates that include their 3′UTRs, raising the possibility of functional interactions between 3′UTRs and IDRs. Rather than affecting protein abundance or localization, we find that HC 3′UTRs control transcriptional or histone demethylase activity through co-translationally determined protein oligomerization states that are kinetically stable. 3′UTR-dependent changes in protein folding require mRNA-IDR interactions, suggesting that mRNAs act as IDR chaperones. These mRNAs are multivalent, a biophysical RNA feature that enables their translation in network-like condensates, which provide favorable folding environments for proteins with long IDRs. These data indicate that the coding sequence is insufficient for the biogenesis of biologically active conformations of IDR-containing proteins and that RNA can catalyze protein folding. ### Competing Interest Statement The authors have declared no competing interest. Pershing Square Foundation, https://ror.org/04tce9s05 G. Harold & Leila Y. Mathers Foundation National Institutes of Health, DP1GM123454, R35GM144046 Memorial Sloan Kettering Cancer Center, https://ror.org/02yrq0923, P30 CA008748
www.biorxiv.org
July 7, 2025 at 2:28 PM
Reposted by Mathieu Quesnel-Vallières
Please RT! The oncology department & McGill is hiring an Assistant professor for a lab to be located at Lady Davis Institute (where I am!). McGill and the Lady Davis are fantastic places to do research and Montreal is great city to live in.

mcgill.wd3.myworkdayjobs.com/en-US/McGill...
Assistant Professor (Research), Gerald Bronfman Department of Oncology, Lady Davis Institute for Medical Research (C1-250514)
Please refer to the How to Apply for a Job (for External Candidates) job aid for instructions on how to apply. If you are an active McGill employee (ie: currently in an active contract or position at ...
mcgill.wd3.myworkdayjobs.com
July 1, 2025 at 5:14 PM
Reposted by Mathieu Quesnel-Vallières
🔊 Meet Mathieu Quesnel Vallières @rna-ken.bsky.social : Using transcriptomic analyses to find cancer immunotherapy targets, he’s bringing his expertise to @usherbrooke.bsky.social , supported by D2R’s New Faculty Start-Up program

🔗Learn more: buff.ly/laJgUJ3

#ResearcherSpotlight #RNAResearch
May 27, 2025 at 1:15 PM
Reposted by Mathieu Quesnel-Vallières
dFORCE provides a revised timeline for mRNA synthesis wherein cleavage, termination, and m6A
deposition occur earlier than, or at least partially decoupled from, the bulk of splicing in thousands of genes
April 29, 2025 at 1:56 PM
Reposted by Mathieu Quesnel-Vallières
Thrilled to share my 1st PhD paper exploring the role of a DAAM1 microexon in memory formation and learning! 🧠🐭💻🔬(and first post at @bsky.app :)

Finally published in
@natcomms.nature.com
nature.com/articles/s41... .
With @mirimiam.bsky.social, @maradierssen.bsky.social,
@crg.eu

Details below:
A highly conserved neuronal microexon in DAAM1 controls actin dynamics, RHOA/ROCK signaling, and memory formation - Nature Communications
Actin is crucial for nervous system function yet the role of microexons in its modulation is unclear. Here, the authors show that a microexon in DAAM1 has a role in actin dynamics, neuronal function a...
nature.com
May 9, 2025 at 9:35 AM
Reposted by Mathieu Quesnel-Vallières
Hey Canadian scientists who haven't voted yet, here's a comparison of the costed platforms as they pertain to science prepared by the Canadian Society of Molecular Biosciences: csmb-scbm.ca/wp-content/u...
csmb-scbm.ca
April 23, 2025 at 3:06 PM
Reposted by Mathieu Quesnel-Vallières
“Recruiting U.S. scientists is a fine idea – except we’re barely supporting Canadian scientists as it is”

https://www.theglobeandmail.com/gift/aaa9fec50b2b595cc0291494fc97e4bd10e7d6945d5c457e0bfa75d42846a705/4FRDBEKLNFESVJ3ZILAS36KR7Y
April 19, 2025 at 12:12 PM
Reposted by Mathieu Quesnel-Vallières
Canada's political leaders must stand up for humanity.

Do you agree?

Retweet this tile to let them know. 🇨🇦

Read our full statement here: www.doctorswithoutborders.ca/msf-to-canad... #cdnpoli
April 17, 2025 at 4:00 PM
Rare personal post to express how grateful I am for my collaborators and colleagues, for all the people around me willing to help, and how lucky I am to have this job.
April 10, 2025 at 11:37 PM
Thank you @c17council.bsky.social, Childhood Cancer Canada and Sarcoma Research Canada for funding our project aiming to develop targeted immunotherapy for children with high-risk sarcoma.

Very excited to team up with Dr. Stéphanie Vairy to push this research forward!
#childhoodcancerresearch
March 25, 2025 at 5:31 PM
Reposted by Mathieu Quesnel-Vallières
Share with US students who had their offers of admission withdrawn for PhD programs:

Apply to Canada. Check out Canadian professors, and contact us. Our system works differently here, and we are all still, technically, able to accept students for Fall 2025.
March 13, 2025 at 12:44 AM
Reposted by Mathieu Quesnel-Vallières
Last year, I was overjoyed to receive an NIH NRSA fellowship to study toddler brains and caregiving effects on memory at Columbia. Last night, my grant was terminated.
March 11, 2025 at 3:17 PM
Reposted by Mathieu Quesnel-Vallières
My alma mater, the University of British Columbia, Dept of Medical Genetics, is hiring for a tenure track junior faculty position specializing in chromatin regulation / gene regulatory mechanisms. Beautiful city and vibrant epigenetics research. Please share!

medgen.med.ubc.ca/assistant-pr...
Assistant Professor (Tenure-Track) | Department of Medical Genetics | Life Sciences Institute (LSI) - Department of Medical Genetics
The Department of Medical Genetics, in collaboration with the Life Sciences Institute (LSI), invites applications for a full-time faculty position at the rank of Assistant Professor, tenure track with...
medgen.med.ubc.ca
March 4, 2025 at 2:36 AM
Reposted by Mathieu Quesnel-Vallières
Many US students don’t know how to seek opportunities outside the US. With some help from our colleagues in EU and Canada, we could put together a consolidated website of PhD opportunities and scholarships outside the US, organized by field. There might still be time for this year in some places.
I’m having similar conversations and sharing international opportunities a lot. I’m sure for a lot of US based trainees that feels overwhelming. I moved to Europe for my postdoc.Happy to chat with any trainees about my experience if it would be helpful.
Heartbreaking chats this week with students thinking of giving up on their dreams of getting a PhD. They worry about getting in PhD programs and careers post PhD. My suggestions: don’t be hasty, think broadly incl EU & Canada, & careers beyond traditional academia. What’re you telling your students?
March 1, 2025 at 4:17 AM
Reposted by Mathieu Quesnel-Vallières
Friends! The science that we love is under threat. World-wide, there're forces seeking to make it corporate-like, focused on deliverables, or even the enemy of society. Take a stand & celebrate science & music! #theconferencetoendallconferences - Registration starts NOW!
woodstock.img.cas.cz
March 1, 2025 at 5:44 PM
Reposted by Mathieu Quesnel-Vallières
I wonder if spreading extremely encouraging experimental results on helping treat pancreatic cancer with *gasp* mRNA vaccines may help people who have villainized them come around. This is a good press release on the study and links to the Nature paper. www.mskcc.org/news/can-mrn...
In Early-Phase Pancreatic Cancer Clinical Trial, Investigational mRNA Vaccine Induces Sustained Immune Activity in Small Patient Group
Learn how MSK researchers are deploying mRNA vaccines against pancreatic cancer.
www.mskcc.org
February 28, 2025 at 5:02 PM