David Posada

@davidposada.bsky.social

An evolutionary biologist working in cancer evolution. Single-cell genomics, bioinformatics, anything phylo (phylogenetics, phylogeography, phylodynamics).

🔬 Our new study in GPB shows that we can recover cell phylogenies from scRNA-seq data and distinguish tumor vs. normal lineages. 🧬 Most expression variation is transcriptionally plastic, but cell‑cycle genes showed a strong phylogenetic signal in one patient. 👉 academic.oup.com/gpb/advance-...

Unraveling the Phylogenetic Signal of Gene Expression from Single-cell RNA-seq Data

Abstract. Single-cell RNA sequencing (scRNA-seq) has transformed our understanding of phenotypic heterogeneity. Although the predominant focus of scRNA-seq

academic.oup.com

🧬 New preprint out on bioRxiv! Using single-cell WGS and Bayesian phylodynamics, we show that some CRC tumors arise decades before diagnosis, remain indolent, then expand rapidly in the last ~2 years. 📄 doi.org/10.1101/2025... 🙏 Huge thanks to all co-authors

Single-cell phylodynamics reveal rapid late-stage colorectal cancer expansions

Single-cell whole-genome sequencing of 335 cells from seven colorectal cancers, coupled with Bayesian phylodynamic modeling, revealed tumors often originate decades before diagnosis, remain indolent, ...

doi.org

Calling cancer data scientists! 📊 💽 🧮 We have a number of open positions in our core facility @icr.ac.uk These are bioinformatician staff scientist like roles to work on exciting single cell, spatial & other genomics data from across our Institute. A PhD is required. jobs.icr.ac.uk/vacancies/13...

Data Scientist in Sutton | The Institute of Cancer Research

View details and apply for this Data Scientist vacancy in Sutton. Salary : Salary range £39,805 to £53,500 (Dependent on experience ) Reporting to: Professor Trevor Gra...

jobs.icr.ac.uk

Become part of a Marie Skłodowska-Curie Doctoral Network a prestigious EU initiative offering world-class research training, international experience, and strong career prospects for early-stage researchers. It’s more than a PhD:it’s a launchpad for your research career! Apply now: www.evomg-dn.eu

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🚨Our new study in Cellular Oncology🚨 shows high CTC genomic diversity & BCL9L mutations predict worse survival in metastatic colorectal cancer—supporting liquid biopsy for prognosis. 🎯🧬 Thanks to all co-authors! doi.org/10.1007/s134...

Genomic diversity and BCL9L mutational status in circulating tumor cells predict overall survival in metastatic colorectal cancer - Cellular Oncology

Background Metastatic colorectal cancer (mCRC) remains a major cause of cancer-related mortality, but few noninvasive biomarkers exist to track disease progression or inform treatment strategies. Circulating tumor cells (CTCs) offer a minimally invasive source of tumor material, yet the prognostic significance of their genomic diversity remains unclear. Methods We conducted whole-exome sequencing of CTC pools from 29 mCRC patients to characterize their mutational landscape and assess associations with overall survival. Results Our analysis revealed substantial variation in mutational burden among patients, with all CTC pools harboring non-silent mutations in key CRC driver genes. Higher genomic diversity in CTC pools was significantly associated with reduced overall survival. Additionally, non-silent mutations in BCL9L emerged as a strong predictor of patient survival. Conclusion Genomic diversity and BCL9L mutational status in CTC pools emerged as strong predictors of survival in mCRC, underscoring the potential of CTC genomic profiling as a minimally invasive and clinically relevant prognostic tool in mCRC.

doi.org

Studying cancer evolution needs multi-region or single cell seq for phylogenetics, right? Amazingly (I think!) we found single-sample bulk methylation suffices, via analysis of "fluctuating methylation". In @nature.com today led by brilliant @calumgabbutt.bsky.social www.nature.com/articles/s41...

Fluctuating DNA methylation tracks cancer evolution at clinical scale - Nature

Cancer evolutionary dynamics are quantitatively inferred using a method, EVOFLUx, applied to fluctuating DNA methylation.

nature.com

🎉 Last week, Nair successfully defended her Ph.D thesis on the genomic heterogeneity of circulating tumor cells and their role in metastasis! Her research sheds light on how cancer spreads. Huge congratulations to Nair on this outstanding achievement! 👏🧬

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Steve Kerr wore a Harvard basketball shirt after the Warriors’ win tonight: “Yes, this is me supporting Harvard. Way to go. Way to stand up to the bully.”

Our #Cancer #Evolution summer school runs again 30 June-3 July at the beautiful Genome Campus in Hinxton, UK sponsored by @wellcometrust.bsky.social Ideal for starters in the field; this year's focus is on using genomic data for cancer evo research. Brilliant & inspiring faculty! bit.ly/40nLdDD

Evolutionary Biology and Ecology of Cancer — 20250630

Evolutionary Biology and Ecology of Cancer

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Wellcome Connecting Science Learning and Training@eventswcs.bsky.social · 2y ago

Working in #CancerBiology? Join us at our expert-led #EBECancer25 course, to discover how insights on the #evolutionary and ecological aspects of #cancer are shaping the future for improved clinical treatments.💊 📅 30 June-3 July 2025 ⏰Apply by 1 April! 📎bit.ly/40nLdDD @sysbiocurie.bsky.social

Wellcome Connecting Science discussion course
Evolutionary Biology and Ecology of Cancer
Course dates: 30 June-3 July 2025
Location: Wellcome Genome Campus, UK

Application and bursary deadline: 1 April 2025

🎓 Como School on Cancer Evolution (CSCE 2025) for cutting-edge discussions on cancer biology, computational sciences, AI, and more! 🧬🌟 May 27-30, 2025, Villa del Grumello, Como, Italy 🇮🇹. Present your research & network with pioneers in the field. Register at: csce.lakecomoschool.org/registration/

Registration - Como School on Cancer Evolution 27-30 May 2025

Registration Registration: 400 EUR  (includes social dinner) On-premise, per-day registration: 120 EUR (social dinner not included) All fees include VAT. How to register Please fill in the form below ...

csce.lakecomoschool.org