Jian Ma
@jianma.bsky.social
3.8K followers 780 following 23 posts
Ray and Stephanie Lane Professor of Computational Biology at CMU School of Computer Science. https://www.cs.cmu.edu/~jianma/
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jianma.bsky.social
We recently launched the AI4BIO Center at Carnegie Mellon. Our goal is to tackle grand challenges in decoding the molecular language governing cellular behavior. Look forward to collaborating with the broad community!

www.cmu.edu/news/stories...
CMU Launches Center for AI-Driven Biomedical Research
The new Center for AI-Driven Biomedical Research (AI4BIO) will use novel artificial intelligence and machine learning methods to illuminate fundamental aspects of gene regulation, cellular function, t...
www.cmu.edu
Reposted by Jian Ma
jcellsci.bsky.social
Check out the recent preprints in #cellbio, selected by the @prelights.bsky.social community.

The featured preLight, from @bdmaier.bsky.social,‬ highlights STEAMBOAT, a ML framework for delineation of cellular interactions from @jianma.bsky.social & team.

journals.biologists.com/jcs/article/...
preLights in cell biology (June 2025) | Journal of Cell Science | The Company of Biologists
journals.biologists.com
jianma.bsky.social
Hannenhalli & Pevzner's legendary STOC-95 paper on sorting by reversals has won the 30-year Test-of-Time Award at STOC! 30 years!! A rare algorithmic gem from #compbio with lasting impact - I still use it to introduce genome rearrangements in my class. sigact.org/prizes/stoc_...
jianma.bsky.social
We introduce EYKTHYR, a computational method that integrates gene expression and chromatin accessibility in a spatially aware model to identify transcription factors shaping spatial gene programs.
biorxiv-bioinfo.bsky.social
EYKTHYR reveals transcriptional regulators of spatial gene programs https://www.biorxiv.org/content/10.1101/2025.05.19.654884v1
jianma.bsky.social
We introduce POPARI -- an interpretable, spatially-aware factor-based model for multi-sample spatial transcriptomics, capturing spatial patterns of gene programs and how they vary across samples and conditions.
biorxiv-bioinfo.bsky.social
POPARI: Modeling multisample variation in spatial transcriptomics https://www.biorxiv.org/content/10.1101/2025.05.08.652741v1
Reposted by Jian Ma
drkbio.bsky.social
The short talk and scholarship deadlines for the @keystonesymposia.bsky.social AI in Molecular Biology meeting in September are coming up fast, May 20th. Looking forward to seeing the submissions! www.keystonesymposia.org/conferences/...
jianma.bsky.social
Cellular interactions span scales and shape cell states & tissue function. We introduce STEAMBOAT, a multiscale attention model for spatial omics that reveals how cells interact - from local contact to long-range signals, uncovering previously unrecognized patterns. Led by Lane Fellow Shaoheng Liang
biorxivpreprint.bsky.social
STEAMBOAT: Attention-based multiscale delineation of cellular interactions in tissues https://www.biorxiv.org/content/10.1101/2025.04.06.647437v1
jianma.bsky.social
Integrating spatial transcriptomics across platforms is hard - different gene panels, sparse data. We introduce LLOKI, using optimal transport + single-cell FM for unified ST integration. Work led by Ellie Haber @mldcmu.bsky.social & Lane Fellow Spencer Krieger.
biorxivpreprint.bsky.social
Unified integration of spatial transcriptomics across platforms https://www.biorxiv.org/content/10.1101/2025.03.31.646238v1
jianma.bsky.social
Congratulations Xian!
jianma.bsky.social
Honored to be elected as a Fellow of ISCB @iscb.bsky.social ! Grateful to the community, colleagues, and students who have shaped my journey. Look forward to contributing to the next wave of advances in comp bio!
iscb.bsky.social
🌟 Congrats to the 2025 ISCB Fellows! 🌟 Honoring leaders in #computationalbiology for outstanding research, innovation and service. See this year's Fellows and their contributions here: https://t.ly/VYfLk
jianma.bsky.social
How does genetic variation affect the cellular genome-wide activity of CRISPR-Cas9 at a population scale? Excited to have contributed to this work in collab w/ Shengdar Tsai, Yong Cheng and their teams @stjuderesearch.bsky.social. The ML component, CHANGE-net, was developed by Wendy Yang in the lab
biorxivpreprint.bsky.social
Population-scale cellular GUIDE-seq-2 and biochemical CHANGE-seq-R profiles reveal human genetic variation frequently affects Cas9 off-target activity https://www.biorxiv.org/content/10.1101/2025.02.10.637517v1
Reposted by Jian Ma
srikosuri.bsky.social
It’s been a tough few weeks. My 10yo daughter was diagnosed with a very rare, aggressive cancer called interdigitating dendritic cell sarcoma (IDCS). I’m reaching out to identify clinicians/patients who have encountered pediatric IDCS or other (non-LCH) dendritic or histiocytic sarcomas cases.
Reposted by Jian Ma
rohitsingh8080.bsky.social
Delighted to be hosting @jianma.bsky.social as a Distinguished Speaker (Lecturer?) at Duke Cell Biology.

Great talk on a variety of foods, from Higashi and SpiceMix to Steamboat!

Also, some stuff on 3D genome.
Reposted by Jian Ma
anshulkundaje.bsky.social
Was asked to contribute brief commentary about my views on the present and future of AI models for regulatory genomics. Wud love for others to add their comments to this thread.

Also check out commentaries from @jianma.bsky.social, Katie Pollard, Remo Rohs & others

www.cell.com/molecular-ce...
Reposted by Jian Ma
biorxivpreprint.bsky.social
DNALONGBENCH: A Benchmark Suite for Long-Range DNA Prediction Tasks https://www.biorxiv.org/content/10.1101/2025.01.06.631595v1
Reposted by Jian Ma
recombconf.bsky.social
We’re thrilled to announce the keynote speakers for #RECOMB2025! Don’t miss the opportunity to gain insights from leading experts in the field: Peer Bork, Evan Eichler, Narry Kim, Sang Yup Lee, Lior Pachter, Olga Troyanskaya, and Leslie Valiant.

📢 Stay tuned for more updates 📢
Reposted by Jian Ma
atalwalkar.bsky.social
Excited about L2G, led by Wenduo Cheng. We leverage LLMs to beat genomic FMs and strong supervised baselines on a wide range of benchmarks. L2G uses cross-modal transfer (rather than vanilla fine-tuning), and neural architecture search to learn a genomic-specific embedder model.
jianma.bsky.social
Can we bypass the resource bottleneck of pretraining genomic Foundation Models? Our work L2G repurposes language LLMs for genomics via cross-modal transfer, matching fine-tuned genomic FMs. Kudos to Wenduo & fantastic collab w/ @atalwalkar.bsky.social. L2G, language to genome; L2G, life’s too good!
jianma.bsky.social
Can we bypass the resource bottleneck of pretraining genomic Foundation Models? Our work L2G repurposes language LLMs for genomics via cross-modal transfer, matching fine-tuned genomic FMs. Kudos to Wenduo & fantastic collab w/ @atalwalkar.bsky.social. L2G, language to genome; L2G, life’s too good!
Reposted by Jian Ma
anshulkundaje.bsky.social
Check out this systematic benchmark of genome-wide, annotation agnostic DNALMs & strong baseline ab-initio models for biologically meaningful tasks in regulatory genomics 1/
jianma.bsky.social
I am so, so sorry, Rita. My deepest condolences
jianma.bsky.social
I've recently joined the Scientific Advisory Board of
@czbiohub.bsky.social Chicago. CZ Biohub Chicago is tackling major challenges in understanding tissue inflammation. Look forward to the new technologies, including AI/ML solutions, emerging from this Biohub. www.czbiohub.org/chi/people/#...
People at CZ Biohub Chicago
Meet the people of Chan Zuckerberg Biohub Chicago.
www.czbiohub.org