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Systems and Signals

@syssig.bsky.social
90 followers 80 following 17 posts

mtDNA, nets, noise, inference profiles.imperial.ac.uk/nick.jones/…

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Michele Frison @frisophagy.bsky.social · 10/10/2025
How can mitophagy be an effective quality control mechanism if mtDNA mutations reach high enough levels to cause disease? This question led us into a dark path, full of concepts of evolutionary genetics, germline stem cell biology and mito-nuclear compatibility. www.science.org/doi/10.1126/...
science.org
Ubiquitin-mediated mitophagy regulates the inheritance of mitochondrial DNA mutations
Mitochondrial synthesis of adenosine triphosphate is essential for eukaryotic life but is dependent on the cooperation of two genomes: nuclear and mitochondrial DNA (mtDNA). mtDNA mutates ~15 times as...
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Reposted by Systems and Signals
Trevor Graham @trevorgraham.bsky.social · 10/09/2025
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...
nature.com
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.
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Systems and Signals @syssig.bsky.social · 29/08/2025
Our paper 'Limits of message passing for node classification: How class-bottlenecks restrict signal-to-noise ratio' is now out as a preprint on Arxiv: arxiv.org/abs/2508.17822. 1/8
arxiv.org
Limits of message passing for node classification: How class-bottlenecks restrict signal-to-noise ratio
Message passing neural networks (MPNNs) are powerful models for node classification but suffer from performance limitations under heterophily (low same-class connectivity) and structural bottlenecks i...
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Reposted by Systems and Signals
I-X @imperial-ix.bsky.social · 18/07/2025
🚀 AI in Science Fellowships – Applications Now Open! The I-X Centre for AI in Science is recruiting up to 19 fellows to join their prestigious programme and accelerate artificial intelligence research in Engineering, Natural and Mathematical Sciences. 1/5
lnkd.in
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I-X @imperial-ix.bsky.social · 19/06/2025
🚨 Opening in mid-July: 🔹 Up to 8x 2-year Independent Fellowships in AI in Science, supported by @schmidtsciences.bsky.social 🔹 Up to 2x 2-year Joint Fellowships with ICR & CNRS 🔹 Up to 3x 1-year Linked Fellowships at Imperial (followed by a 1 year linked fellowship at AIMS and NCBS). 2/2
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Reposted by Systems and Signals
I-X @imperial-ix.bsky.social · 19/06/2025
🚨 AI in Science Fellowship Opportunities 🚨 🔹Now open: Up to 6x 4-year Independent Fellowships dedicated to AI in Science in a program supported by Schmidt Sciences and Imperial College London [@imperialcollegeldn.bsky.social]. 🔗 Find out more and apply: www.imperial.ac.uk/research-and... 1/2
imperial.ac.uk
Imperial College Research Fellowships | Research | Imperial College London
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Systems and Signals @syssig.bsky.social · 29/05/2025
An approachable interview published today www.imperial.ac.uk/news/264393/... about this paper www.nature.com/articles/s41...
imperial.ac.uk
Cryptic mitochondrial DNA mutations reveal a hidden layer of the ageing process | Imperial News | Imperial College London
Single-cell analysis of over 120,000 cells reveals how mitochondrial DNA mutations accumulate with age and may affect ageing and neurodegeneration.
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Systems and Signals @syssig.bsky.social · 07/03/2025
We're pleased our exciting paper 'Cryptic mitochondrial ageing coincides with mid-late life and is pathophysiologically informative in single cells across tissues and species' is now out in Nature Comms: www.nature.com/articles/s41...
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Systems and Signals @syssig.bsky.social · 12/12/2024
Merry Cristae! Thanks to Hetvi for the art: @vuisnotabot.bsky.social
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Systems and Signals @syssig.bsky.social · 22/11/2024
Systems and signals group in Imperial maths led by Nick Jones. Stay tuned for our latest research on #mitochondria #aging #genetics #biomathematics #physicalbiology #networks and #ML. We blog at systems-signals.blogspot.com and there's more about us here profiles.imperial.ac.uk/nick.jones/a...
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