Ariel Madrigal
arielmadr.bsky.social
Ariel Madrigal
@arielmadr.bsky.social
PhD student of Human Genetics at McGill. Studied genomics at LCG UNAM. Single cell, statistics, cancer.
Reposted by Ariel Madrigal
Happy to share the Biodiversity Cell Atlas white paper, out today in @nature.com. We look at the possibilities, challenges, and potential impacts of molecularly mapping cells across the tree of life.
www.nature.com/articles/s41...
September 24, 2025 at 3:12 PM
Reposted by Ariel Madrigal
We’re excited to share our work where we investigated the mechanisms of chromosome motion by tracking all #chromosomes, mapping their interactions, and live cell karyotyping, using #AI based denoising, segmentation and registration, published in Nature Cell Biology.
www.nature.com/articles/s41...
April 7, 2025 at 1:01 PM
Reposted by Ariel Madrigal
We identify evidence of off-target probe binding in the 10x Genomics #Xenium v1 Human Breast Gene Expression Panel, compromising the accuracy of resulting #singlecell #spatialtranscriptomics profiles

See our preprint for more details: www.biorxiv.org/content/10.1...

#AcademicSky

🧵👇 1/n
Evidence of off-target probe binding in the 10x Genomics Xenium v1 Human Breast Gene Expression Panel compromises accuracy of spatial transcriptomic profiling
The accuracy of spatial gene expression profiles generated by probe-based in situ spatially-resolved transcriptomic technologies depends on the specificity with which probes bind to their intended tar...
www.biorxiv.org
April 3, 2025 at 3:35 PM
Reposted by Ariel Madrigal
We polled Nature readers to ask if they were thinking of leaving the US for jobs abroad. Three-quarters of them (who said they were US-based scientists) said yes. 🧪

www.nature.com/articles/d41...
75% of US scientists who answered Nature poll consider leaving
More than 1,600 readers answered our poll; many said they were looking for jobs in Europe and Canada.
www.nature.com
March 27, 2025 at 2:19 PM
Reposted by Ariel Madrigal
our work on the molecular differences between transcription factor isoforms is out now in Molecular Cell!

key point: 2/3rds of TF isos differ in properties like DNA binding & transcriptional activity

many are "negative regulators" & misexpressed in cancer

www.sciencedirect.com/science/arti...
March 26, 2025 at 5:11 PM
Reposted by Ariel Madrigal
McGill’s MSc & PhD in Human Genetics Program is accepting applications for Fall 2025 from Canadian citizens & permanent residents (Deadline: May 31). International students are encouraged to apply for Winter 2026 (Deadline: Oct 15).
Join our vibrant research community!
www.mcgill.ca/humangenetic...
Application Deadlines
MSc in Genetic Counselling Program (Non-Thesis) Fall Winter Non-Canadian Citizens (International) January 01 N/A Canadian Citizens & Permanent Residents in Canada January 01 N/A * The M.Sc. ...
www.mcgill.ca
March 17, 2025 at 2:18 PM
Reposted by Ariel Madrigal
New in @naturecomms.bsky.social: I'm thrilled to share with you our latest work that applies #srRNAseq to understand splicing accuracy across human introns, tissues and in the context of ageing and neurodegeneration www.nature.com/articles/s41...
Splicing accuracy varies across human introns, tissues, age and disease - Nature Communications
Inaccuracies in RNA splicing may play a significant role in aging and disease. Here, the authors present a comprehensive characterization of splicing accuracy across over 14,000 human samples, offerin...
www.nature.com
January 27, 2025 at 9:53 PM
Reposted by Ariel Madrigal
Congratulations to @soniagr.bsky.social, rytenlab.com team, et al for this project re-analyzing #GTEx human gene expression data uniformly re-processed with #recount3

It was a pleasure working with Sonia G & Mina Ryten

doi.org/10.1038/s414...

@bioconductor.bsky.social @lieberinstitute.bsky.social
January 28, 2025 at 8:54 PM
Reposted by Ariel Madrigal
New research from IGI Investigator Dave Savage and first author Noam Prywes details the landscape of possible Rubisco variants, suggesting ways to make the world's most abundant enzyme better at its job. 🌱

Read more: ow.ly/t2JO50ULh10
January 22, 2025 at 6:08 PM
Reposted by Ariel Madrigal

Excited to share our work @science.org. led by our incredible @tommyz626.bsky.social at @rockefelleruniv.bsky.social! By profiling 21 million single cells across life stages, we reveal aging as distinct, development-like transitions, with dramatic cell population changes in specific time windows!
A panoramic view of cell population dynamics in mammalian aging
To elucidate aging-associated cellular population dynamics, we present PanSci, a single-cell transcriptome atlas profiling over 20 million cells from 623 mouse tissues across different life stages, se...
tinyurl.com
November 29, 2024 at 4:17 PM
Reposted by Ariel Madrigal
Excited to share our latest preprint on scE2G – a new model to link enhancers to target genes using single-cell data – with state-of-the-art performance across multiple perturbation benchmarks.

biorxiv.org/cgi/content/...

Read more below!

1/12
Mapping enhancer-gene regulatory interactions from single-cell data
Mapping enhancers and their target genes in specific cell types is crucial for understanding gene regulation and human disease genetics. However, accurately predicting enhancer-gene regulatory interac...
biorxiv.org
November 25, 2024 at 8:26 AM
Reposted by Ariel Madrigal
A big day of output for the Human Cell Atlas, a global collaborative project with 100 countries to understand our ~37 trillion cells
A Wikipedia of our cells, a "remarkable achievement"
nature.com/articles/d41...
nature.com/immersive/d4...
November 20, 2024 at 5:04 PM
Reposted by Ariel Madrigal
Cancer cells often harbor oncogenes outside chromosomes on extrachromosomal DNA (ecDNA), which is unevenly inherited by dividing cells. We reported in Nature last week that collectives of ecDNAs are inherited together by dividing cancer cells. 1/
www.nature.com/articles/s41...
Coordinated inheritance of extrachromosomal DNAs in cancer cells - Nature
Cooperative species of extrachromosomal DNAs are coordinately inherited through mitotic co-segregation.
www.nature.com
November 18, 2024 at 5:37 PM
Reposted by Ariel Madrigal
NIH faces sweeping reforms, including downsizing and increased oversight, sparking fears of political influence and a shift in priorities. The scientific community must act now to protect the integrity and future of the nation’s biomedical research enterprise.

www.nature.com/articles/d41...
Major biomedical funder NIH poised for massive reform under Trump 2.0
Sweeping changes and more research scrutiny could be on the way for the US National Institutes of Health.
www.nature.com
November 18, 2024 at 7:18 PM