Kalin Nonchev
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nonchev.bsky.social
Kalin Nonchev
@nonchev.bsky.social
PhD at ETH Zurich, machine learning and biomedical data https://kalinnonchev.github.io
Older spot-level spatial transcriptomics datasets shouldn't be forgotten now that new single-cell methods exist. 🧬

Instead of discarding this rich resource, we can bridge the gap.
DeepSpot2Cell helps bridge the gap 👇
October 1, 2025 at 3:28 PM
Internship Opportunity: Multimodal AI Research Scientist at the Biomedical Informatics Group at ETH Zurich 🚀

Interested in working at the intersection of computational pathology, spatial transcriptomics, LLM representation learning, and tissue generation?
August 18, 2025 at 8:41 PM
🚀 Excited to share that we've generated the largest digital spatial transcriptomics dataset using DeepSpot - over 56 million spatial transcriptomics spots from 3 780 TCGA samples across skin melanoma, renal cell carcinoma, lung adenocarcinoma, and lung squamous cell carcinoma cohorts. #pathology
May 12, 2025 at 5:07 AM
By extending our recent deep learning method, DeepSpot, to support 10x Genomics Xenium data, we significantly improved single-cell gene expression predictions in patients with Inflammatory Bowel Disease. It is exciting to see its performance validated in an independent evaluation!
March 20, 2025 at 6:36 AM
First place award at the Autoimmune Disease Machine Learning Challenge organized by the @broadinstitute.org and CrunchDAO. Our approach outperformed competitors worldwide in predicting single-cell spatial transcriptomics from H&E images. 🎉
March 20, 2025 at 6:36 AM
9/12 The TCGA spatial transcriptomics dataset, containing over 37 million spots, provides unique insights into the molecular landscapes of cancer tissues. It also sets a benchmark for evaluating and developing new spatial transcriptomics models. 🌍
February 24, 2025 at 7:46 PM
8/12 DeepSpot outperformed previous models or matched bulk-RNA seq performance in tumor type classification. 🧬
February 24, 2025 at 7:46 PM
7/12 Using DeepSpot, we generated the largest spatial transcriptomics dataset - over 37 million spots from 1792 TCGA slides across skin melanoma and kidney cancer. To assess out-of-distribution performance we aggregated the gene expression per slide and compared it to bulk-RNA.
February 24, 2025 at 7:46 PM
6/12 DeepSpot overcomes spatial transcriptomics gene sensitivity. Higher resolution often reduces gene sensitivity and increases spot contamination, leading to misleading results. DeepSpot successfully recovered low-quality samples that would’ve been discarded.
February 24, 2025 at 7:46 PM
5/12 DeepSpot enables digital spatial transcriptomics analysis, allowing de novo clustering, marker gene identification, and pathway discovery based on predicted gene expression. 🔍
February 24, 2025 at 7:45 PM
4/12 DeepSpot substantially improved gene correlations across multiple datasets from patients with metastatic melanoma, kidney, lung, and colon cancers, outperforming previous state-of-the-art models. 🚀
February 24, 2025 at 7:45 PM
3/12 DeepSpot uses a deep-set neural network to model transcriptomic spots as bags of sub-spots (Visium). It enhances resolution by learning sub-spot contributions and integrates tissue context by pooling neighboring spots to learn the tissue landscape.
February 24, 2025 at 7:45 PM
2/12 For each spot, we create a bag of sub-spots by dividing it into sub-tiles that capture the local morphology and a bag of neighboring spots to represent the global tissue environment. A pretrained pathology foundation model extracts tile features, which are input to DeepSpot.
February 24, 2025 at 7:44 PM
1/12 DeepSpot leverages advanced pathology foundation models and multi-level tissue context to accurately predict gene expression directly from H&E images. It is trained on paired spatial transcriptomics data sequenced with @10xgenomics.bsky.social
Visium. 💻✨
February 24, 2025 at 7:44 PM
How can we predict spatial transcriptomics from histology images to enable simple, affordable, and reliable analysis of spatially resolved gene expression in routine clinical use? 🤔 Introducing DeepSpot – a deep learning model designed to tackle this! 🧵👇 www.medrxiv.org/content/10.1...
February 24, 2025 at 7:43 PM
9/12 The TCGA spatial transcriptomics dataset, containing over 37 million spots, provides unique insights into the molecular landscapes of cancer tissues. It also sets a benchmark for evaluating and developing new spatial transcriptomics models. 🌍
February 24, 2025 at 7:36 PM
8/12 DeepSpot outperformed previous models or matched bulk-RNA seq performance in tumor type classification. 🧬
February 24, 2025 at 7:35 PM
7/12 Using DeepSpot, we generated the largest spatial transcriptomics dataset - over 37 million spots from 1792 TCGA slides across skin melanoma and kidney cancer. To assess out-of-distribution performance we aggregated the gene expression per slide and compared it to bulk-RNA.
February 24, 2025 at 7:35 PM
6/12 DeepSpot overcomes spatial transcriptomics gene sensitivity. Higher resolution often reduces gene sensitivity and increases spot contamination, leading to misleading results. DeepSpot successfully recovered low-quality samples that would’ve been discarded.
February 24, 2025 at 7:34 PM
5/12 DeepSpot enables digital spatial transcriptomics analysis, allowing de novo clustering, marker gene identification, and pathway discovery based on predicted gene expression. 🔍
February 24, 2025 at 7:34 PM
4/12 DeepSpot substantially improved gene correlations across multiple datasets from patients with metastatic melanoma, kidney, lung, and colon cancers, outperforming previous state-of-the-art models. 🚀
February 24, 2025 at 7:33 PM
3/12 DeepSpot uses a deep-set neural network to model transcriptomic spots as bags of sub-spots (Visium). It enhances resolution by learning sub-spot contributions and integrates tissue context by pooling neighboring spots to learn the tissue landscape.
February 24, 2025 at 7:33 PM
2/12 For each spot, we create a bag of sub-spots by dividing it into sub-tiles that capture the local morphology and a bag of neighboring spots to represent the global tissue environment. A pretrained pathology foundation model extracts tile features, which are input to DeepSpot.
February 24, 2025 at 7:33 PM
1/12 DeepSpot leverages advanced pathology foundation models and multi-level tissue context to accurately predict gene expression directly from H&E images. It is trained on paired spatial transcriptomics data sequenced with @10xGenomics
Visium. 💻✨
February 24, 2025 at 7:32 PM