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Lukas Valihrach

@lukasvalihrach.bsky.social
269 followers 529 following 33 posts

Single-Cell & Spatial Transcriptomics | Group Leader at GliaOmics Lab | Head of GeneCore Facility | Co-founder at Carta Genum | Glial Cells in Health & Disease

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Lukas Valihrach @lukasvalihrach.bsky.social · 07/06/2025
CellNEST reveals cell–cell relay networks using attention mechanisms on spatial transcriptomics👍 www.nature.com/articles/s41...
nature.com
CellNEST reveals cell–cell relay networks using attention mechanisms on spatial transcriptomics - Nature Methods
Cell Neural Networks on Spatial Transcriptomics (CellNEST) deciphers patterns of communication between cells in spatially resolved transcriptomics data and can detect both signals between individual c...
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Lukas Valihrach @lukasvalihrach.bsky.social · 07/06/2025
SpotSweeper: spatially aware quality control for spatial transcriptomics👍 www.nature.com/articles/s41...
nature.com
SpotSweeper: spatially aware quality control for spatial transcriptomics - Nature Methods
SpotSweeper is a spatially aware method for quality control of spatially resolved transcriptomics data that corrects for spatial confounding missed by existing methods, including both local and region...
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Lukas Valihrach @lukasvalihrach.bsky.social · 06/06/2025
Changing genes, cells and networks to reprogram the brain after stroke🫶 www.nature.com/articles/s41...
nature.com
Changing genes, cells and networks to reprogram the brain after stroke - Nature Neuroscience
This review explores how stroke induces changes in gene expression, cell behavior and brain networks, offering insights into recovery. It highlights strategies to enhance cellular reprogramming and br...
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Lukas Valihrach @lukasvalihrach.bsky.social · 04/06/2025
KODAMA enables self-guided weakly supervised learning in spatial transcriptomics www.biorxiv.org/content/10.1...
biorxiv.org
KODAMA enables self-guided weakly supervised learning in spatial transcriptomics
Spatial transcriptomics provides researchers with a powerful tool to investigate gene expression patterns within their native positional context in tissues, revealing intricate cellular relationships....
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Lukas Valihrach @lukasvalihrach.bsky.social · 29/05/2025
A visual–omics foundation model to bridge histopathology with spatial transcriptomics🔥🔥🔥 www.nature.com/articles/s41...
nature.com
A visual–omics foundation model to bridge histopathology with spatial transcriptomics - Nature Methods
OmiCLIP is a visual–omics foundation model that integrates histology and spatial transcriptomics. The associated Loki platform offers accurate and robust tools for alignment, annotation, cell-type dec...
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Lukas Valihrach @lukasvalihrach.bsky.social · 28/05/2025
AI-driven 3D Spatial Transcriptomics🤯 arxiv.org/abs/2502.17761
arxiv.org
AI-driven 3D Spatial Transcriptomics
A comprehensive three-dimensional (3D) map of tissue architecture and gene expression is crucial for illuminating the complexity and heterogeneity of tissues across diverse biomedical applications. Ho...
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Lukas Valihrach @lukasvalihrach.bsky.social · 28/05/2025
Evaluating the practical aspects and performance of commercial single-cell RNA sequencing technologies🔥 www.biorxiv.org/content/10.1...
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Lukas Valihrach @lukasvalihrach.bsky.social · 25/05/2025
How neural stem cell therapy promotes brain repair after stroke🫶 www.cell.com/stem-cell-re...
cell.com
How neural stem cell therapy promotes brain repair after stroke
In this review, Weber, Rust, and Tackenberg discuss the potential mechanisms by which neural stem/progenitor cell therapy can induce brain recovery after ischemic stroke. They argue that neural stem/p...
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Lukas Valihrach @lukasvalihrach.bsky.social · 25/05/2025
Cell simulation as cell segmentation⚡ www.nature.com/articles/s41...
nature.com
Cell simulation as cell segmentation - Nature Methods
Proseg is a segmentation approach for single-cell spatially resolved transcriptomics data that uses unsupervised probabilistic modeling of the spatial distribution of transcripts to accurately segment...
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Lukas Valihrach @lukasvalihrach.bsky.social · 25/05/2025
Spatiotemporal transcriptomic maps of mouse intracerebral hemorrhage at single-cell resolution🔥 www.cell.com/neuron/abstr...
cell.com
Spatiotemporal transcriptomic maps of mouse intracerebral hemorrhage at single-cell resolution
Xiang et al. generated and demonstrate the utility of a spatiotemporal transcriptomic atlas of intracerebral hemorrhage (ICH) at single-cell resolution across 9 time points between 3 hours and 28 days...
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Lukas Valihrach @lukasvalihrach.bsky.social · 22/05/2025
Transcriptome analysis of archived tumors by Visium, GeoMx DSP, and Chromium reveals patient heterogeneity🙌 www.nature.com/articles/s41...
nature.com
Transcriptome analysis of archived tumors by Visium, GeoMx DSP, and Chromium reveals patient heterogeneity - Nature Communications
Currently, there is an urgent need to evaluate the strengths and limitations of various probe-based full transcriptome methods for formalin-fixed paraffin-embedded tumor tissues. Here, the authors ana...
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Lukas Valihrach @lukasvalihrach.bsky.social · 21/05/2025
Beyond cell atlases: spatial biology reveals mechanisms behind disease🫶 www.nature.com/articles/s41...
nature.com
Beyond cell atlases: spatial biology reveals mechanisms behind disease - Nature Biotechnology
As the next generation of spatial transcriptomics tools hits the market, researchers are uncovering previously unknown interactions that could transform clinical research.
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Lukas Valihrach @lukasvalihrach.bsky.social · 20/05/2025
CellFM: a large-scale foundation model pre-trained on transcriptomics of 100 million human cells🤯 www.nature.com/articles/s41...
nature.com
CellFM: a large-scale foundation model pre-trained on transcriptomics of 100 million human cells - Nature Communications
Single-cell sequencing reveals cellular heterogeneity but is challenged by technical noise and batch effects. Here, authors present CellFM, an 800-million-parameter foundation model trained on 100 mil...
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Lukas Valihrach @lukasvalihrach.bsky.social · 20/05/2025
A dynamic and multimodal framework to define microglial states🔥 www.nature.com/articles/s41...
nature.com
A dynamic and multimodal framework to define microglial states - Nature Neuroscience
Sankowski and Prinz propose a classification framework for microglia states that considers the contextual plasticity of microglia. Their multimodal classification aligns a robust terminology with biological function and cellular context.
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Lukas Valihrach @lukasvalihrach.bsky.social · 18/05/2025
Cautions on utilizing plasma GFAP level as a biomarker for reactive astrocytes in neurodegenerative diseases molecularneurodegeneration.biomedcentral.com/articles/10....
molecularneurodegeneration.biomedcentral.com
Cautions on utilizing plasma GFAP level as a biomarker for reactive astrocytes in neurodegenerative diseases - Molecular Neurodegeneration
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Lukas Valihrach @lukasvalihrach.bsky.social · 16/05/2025
A spatiotemporal cancer cell trajectory underlies glioblastoma heterogeneity🔥 www.biorxiv.org/content/10.1...
biorxiv.org
A spatiotemporal cancer cell trajectory underlies glioblastoma heterogeneity
Cancer cells display highly heterogeneous and plastic states in glioblastoma, an incurable brain tumour. However, how these malignant states arise and whether they follow defined cellular trajectories...
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Lukas Valihrach @lukasvalihrach.bsky.social · 15/05/2025
Microglia transcriptional states and their functional significance: Context drives diversity🫶 www.cell.com/immunity/ful...
cell.com
Microglia transcriptional states and their functional significance: Context drives diversity
Single-cell sequencing technologies have revealed the transcriptional diversity of microglia, the brain-resident macrophage population. In this issue, Stevens and colleagues discuss how microglia adap...
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Lukas Valihrach @lukasvalihrach.bsky.social · 15/05/2025
Spatial transcriptomics reveals human cortical layer and area specification🧠 www.nature.com/articles/s41...
nature.com
Spatial transcriptomics reveals human cortical layer and area specification - Nature
Multiplexed error-robust fluorescence in situ hybridization (MERFISH) together with deep-learning-based nucleus segmentation enabled the construction of a highly detailed and informative spatially res...
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Lukas Valihrach @lukasvalihrach.bsky.social · 14/05/2025
Cell-type deconvolution methods for spatial transcriptomics🔥 www.nature.com/articles/s41...
nature.com
Cell-type deconvolution methods for spatial transcriptomics - Nature Reviews Genetics
Cell-type deconvolution methods are often needed to analyse spatial transcriptomic data to recover cell-type distributions. In this Review, the authors describe the process of cell-type deconvolution,...
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Lukas Valihrach @lukasvalihrach.bsky.social · 11/05/2025
Application of spatial transcriptomics across organoids: a high-resolution spatial whole-transcriptome benchmarking dataset www.biorxiv.org/content/10.1...
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Lukas Valihrach @lukasvalihrach.bsky.social · 09/05/2025
EnrichSci: Transcript‑guided Targeted Cell Enrichment for Scalable Single‑Cell RNA Sequencing www.biorxiv.org/content/10.1...
biorxiv.org
EnrichSci: Transcript‑guided Targeted Cell Enrichment for Scalable Single‑Cell RNA Sequencing
Large-scale single‑cell atlas efforts have revealed many aging‑ or disease‑associated cell types, yet these populations are often underrepresented in heterogeneous tissues, limiting detailed molecular...
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Lukas Valihrach @lukasvalihrach.bsky.social · 09/05/2025
snCED-seq: high-fidelity cryogenic enzymatic dissociation of nuclei for single-nucleus RNA-seq of FFPE tissues www.nature.com/articles/s41...
nature.com
snCED-seq: high-fidelity cryogenic enzymatic dissociation of nuclei for single-nucleus RNA-seq of FFPE tissues - Nature Communications
Single-nucleus RNA sequencing can be applied to FFPE tissues, but isolating intact nuclei remains challenging. Here the authors develop a low-temperature enzymatic dissociation strategy for rapid, hig...
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Lukas Valihrach @lukasvalihrach.bsky.social · 09/05/2025
Next generation statistical framework for next generation spatial transcriptomics data www.biorxiv.org/content/10.1...
biorxiv.org
Next generation statistical framework for next generation spatial transcriptomics data
The rapid advancement of spatial transcriptomic technologies, particularly in situ hybridization based methods, has enabled the profiling of gene expression at sub cellular resolution across large tis...
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Lukas Valihrach @lukasvalihrach.bsky.social · 09/05/2025
A computational framework for mapping isoform landscape and regulatory mechanisms from spatial transcriptomics data 🤔 www.biorxiv.org/content/10.1...
biorxiv.org
A computational framework for mapping isoform landscape and regulatory mechanisms from spatial transcriptomics data
Transcript diversity including splicing and alternative 3'end usage is crucial for cellular identity and adaptation, yet its spatial coordination remains poorly understood. Here, we present SPLISOSM (...
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Lukas Valihrach @lukasvalihrach.bsky.social · 08/05/2025
ShinyCell2: An extended library for simple and sharable visualisation of spatial, peak-based and multi-omic single-cell data www.biorxiv.org/content/10.1...
biorxiv.org
ShinyCell2: An extended library for simple and sharable visualisation of spatial, peak-based and multi-omic single-cell data
Single-cell technologies now span multiple modalities, generating large, complex datasets that challenge analysis and sharing. We present ShinyCell2 , an enhanced R package for interactive visualisati...
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Lukas Valihrach @lukasvalihrach.bsky.social · 04/05/2025
Heterogeneity in pericyte inflammatory responses across age and species highlight the importance of human cell models molecularbrain.biomedcentral.com/articles/10....
molecularbrain.biomedcentral.com
Heterogeneity in pericyte inflammatory responses across age and species highlight the importance of human cell models - Molecular Brain
Pericytes in the central nervous system are essential for maintaining blood-brain barrier function, regulating blood flow, modulating immune responses, and interacting closely with surrounding cells o...
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Lukas Valihrach @lukasvalihrach.bsky.social · 03/05/2025
Redefining CNS immune privilege🫶 www.nature.com/articles/s41...
nature.com
Redefining CNS immune privilege - Nature Reviews Immunology
In this Perspective, Smyth and Kipnis reappraise the concept of immune privilege in the central nervous system. Although immune privilege was originally thought to involve isolation of the central ner...
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Lukas Valihrach @lukasvalihrach.bsky.social · 29/04/2025
How the Human Cell Atlas is fast-tracking new medicines😍 www.npr.org/2025/04/18/g...
npr.org
How the Human Cell Atlas is fast-tracking new medicines
Developing new medications can take years. But computational biologist Aviv Regev says AI-powered cell mapping is transforming the process—helping to create life-saving drugs in much less time.
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Lukas Valihrach @lukasvalihrach.bsky.social · 29/04/2025
SpatialAgent: An autonomous AI agent for spatial biology🤯 www.biorxiv.org/content/10.1...
biorxiv.org
SpatialAgent: An autonomous AI agent for spatial biology
Advances in AI are transforming scientific discovery, yet spatial biology, a field that deciphers the molecular organization within tissues, remains constrained by labor-intensive workflows. Here, we ...
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Lukas Valihrach @lukasvalihrach.bsky.social · 29/04/2025
Chimeric brain models: Unlocking insights into human neural development, aging, diseases, and cell therapies www.cell.com/neuron/abstr...
cell.com
Chimeric brain models: Unlocking insights into human neural development, aging, diseases, and cell therapies
Papetti et al. discuss recent advances in understanding human neural development, aging, and disease uncovered through human-rodent chimeric brain models and examine their potential to drive progress ...
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Lukas Valihrach @lukasvalihrach.bsky.social · 29/04/2025
Putting cancer immunotherapy into spatial context in the clinic www.nature.com/articles/s41...
nature.com
Putting cancer immunotherapy into spatial context in the clinic - Nature Biotechnology
Spatial omics technologies offer insights into the organization of cellular and molecular components and their interactions within the tumor ecosystem. Overcoming the key challenges to integrating the...
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Lukas Valihrach @lukasvalihrach.bsky.social · 28/04/2025
From Transcripts to Cells: Dissecting Sensitivity, Signal Contamination, and Specificity in Xenium Spatial Transcriptomics www.biorxiv.org/content/10.1...
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Lukas Valihrach @lukasvalihrach.bsky.social · 26/04/2025
Spatiotemporal Analysis of Remyelination Reveals a Concerted Interferon-Responsive Glial State That Coordinates Immune Infiltration www.biorxiv.org/content/10.1...
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