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Dvir Aran

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@dvir_a

Biomedical Data Science Lab; Associate Professor @ Technion, Israel; Co-Founder, MedBAR.ai
Israel aran-lab.com Joined October 2009
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Dvir Aran Verified account @dvir_a
Our paper is now out in @NEJM_AI!

Three years ago, I met @ShellyShahar, and we started experimenting with LLMs for clinical decision support. We were excited about the possibilities, but felt something was missing in how these models were evaluated.

Decisions in medicine involve trade-offs. Send a patient for an MRI? Recommend a biopsy? Refer, or wait?

Most benchmarks focus on accuracy and safety. We examined another dimension: the cost of recommended care.

eur01.safelinks.protection.outlook.com/?url=https%3A%…
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Dvir Aran Verified account @dvir_a
In this editorial about our paper the author note correctly that "the tools studied here will soon be outdated". I recently reran the pipeline with the 10 newest models. In most families, cost of care continued going up - workup-inflation.medbar.ai
Isaac Kohane Verified account @zakkohane Oct 15
AI Costs? Sometimes the best clinical decision is to do less: Important editorial @NEJM_AI about how AI plays into costs ai.nejm.org/stoken/default… Relevant to the $1billion in add'l costs reported by @BCBSAssociation CC @chrissyfarr @aafp
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Dvir Aran Verified account @dvir_a
I’ll try to make my point in a different way. A few years ago (mostly pre-LLMs), a high school student in my lab used data to find synthetic lethal targets for cancer academic.oup.com/nargab/article…. The bioinformatics pipeline revealed many such candidates. We chose one and, together with @ayoubnlab, validated it, and it actually worked!
1. This paper didn’t get much love from editors and was eventually published in a relatively low-impact journal. If you want impact, you need to go much deeper into validation and mechanism. The hard truth is that there are many papers like this, and editors are fed up with bioinformatics pipelines that discover candidates.
2. My main point is that it seems Anthropic automated the pipeline for finding candidates. I’m pretty sure that if Anthropic asked 900 agents to find synthetic lethal targets, they would do a really good job of finding promising candidates, in a sense, replacing a phenomenal high school student in a small bioinformatics lab. This is very, very, very different from revolutionizing biology and very similar to the regular applications of LLMs we all experience.
3. I am 100% bullish on LLMs/foundation models revolutionizing biology and healthcare. It’s actually already happening, and there have been dozens of high-impact discoveries. This one doesn’t seem to be in the same league, but I’m sure the Anthropic lab, which I assume is heavily funded and has unlimited access to tokens and agents, will be at the forefront of future discoveries.
academic.oup.com SLAYER: a computational framework for identifying synthetic lethal interactions through integrated... Abstract. Synthetic lethality represents a promising therapeutic approach in precision oncology, yet systematic identification of clinically relevant synth
Dvir Aran Verified account @dvir_a Sep 23
Based on this post, I was expecting a groundbreaking advancement, but reading through the work, it feels quite underwhelming. It seems to cover only basic bioinformatics analysis, whereas we have seen much more complex tasks accomplished by LLMs. Without the Anthropic PR surrounding it, it would likely be viewed as just another standard paper among the dozens published every day.
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Dvir Aran Verified account @dvir_a
Based on this post, I was expecting a groundbreaking advancement, but reading through the work, it feels quite underwhelming. It seems to cover only basic bioinformatics analysis, whereas we have seen much more complex tasks accomplished by LLMs. Without the Anthropic PR surrounding it, it would likely be viewed as just another standard paper among the dozens published every day.
Anthropic Verified account @AnthropicAI Sep 23
Claude has discovered a previously unknown enzyme system hidden in the DNA of bacteriophages. Beside the enzyme’s gene sits a long array of repeating DNA—a structure that looks somewhat similar to CRISPR.

We don’t yet understand what this system does, but only a handful of known systems share its features, and all of them are able to cut, copy, and paste DNA. Historically, the discovery of such programmable systems has helped revolutionize medicine. CRISPR, for instance, is now the foundation of genetic medicines. But it will take much more work to learn what this system does, and whether it can be put to similar use.

Read more: anthropic.com/news/claude-di…
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Dvir Aran Verified account @dvir_a
Our paper is out in @Cancer_Cell!
We started this project almost 5 years ago with the idea that to understand why some cancer patients respond to immunotherapy and others do not, we may need to look beyond the tumor before treatment. Immunotherapy is not just a test of a pre-existing state; it is a perturbation. It changes the tumor immune microenvironment.
So the question became: can the direction of that change explain response?
authors.elsevier.com/a/1niWC5TA51p1…