Felix J. Hartmann
@felixjhartmann
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Group Leader @DKFZ and @DKTK_ using multiplexed imaging to study the human tumor immune microenvironment
Heidelberg, Germany
Joined May 2016
Time to announce some big news! I am super excited to join the @DKFZ Heidelberg to start my lab in October this year 🥳 We are going to focus on single-cell analysis and multiplexed imaging to look at anti-tumor immunity. Also hiring so retweet and reach out!
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Excited to see this out: A spatial atlas of human gastrointestinal acute GVHD reveals epithelial and immune dynamics underlying disease pathophysiology
science.org
Multiplexed imaging of aGVHD GI biopsies revealed epithelial remodeling and alteration in immune composition, offering insight into disease pathology.
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I'm thrilled to share our new paper in Nature Immunology! Spatial proteomics of Alzheimer’s disease-specific human microglial states: https://t.co/VvKI36NhfX — the culmination of my postdoc at @Stanford @StanfordMed in the @Bendall_Lab and lab of Thomas Montine! 🧠✨
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I received some old microscopy slides from 1800s, when at-home microscopes made it possible to look at hidden worlds of diatoms, polycystina + other teeny tiny things. I made this website so people today can take a look too: https://t.co/46rKWPx9nK Enjoy! #scienceisforeveryone
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Kasumi identifies local patterns in tissue patches in spatial omics data @tanevski @saezlab #BiotechNatureComms
https://t.co/0BZNIGmDiX
nature.com
Nature Communications - Spatial omics reveal tissue structures and can aid patient stratification. The authors present a method to identify patterns in tissue patches, enabling analysis of disease...
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Get in contact with us for more info on the project and the application process!
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I’m super excited to share what I’ve been working on for the last (many) years: a spatial + genomic + transcriptomic characterization of how the breast cancer microenvironment evolves through immunotherapy! (1/x)
biorxiv.org
Immune checkpoint inhibition (ICI) has fundamentally changed cancer treatment. However, only a minority of patients with metastatic triple negative breast cancer (TNBC) benefit from ICI, and the...
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Preprint alert! We profiled immune organization in sentinel lymph nodes (sLNs) of melanoma patients using spatial proteomics and spatial transcriptomics, and found that it is prognostic of distant metastases:
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📣 Thrilled to announce that our postdocs @marc_a_baertsch, Nina Prokoph,PhD & Alexandra Poos, PhD together with @felixjhartmann, have received Sanofi iAwards Europe funding support for their project https://t.co/iKzbupnTCQ (1/2)
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1/4 Is it possible to perform end-to-end computational analysis on multiplexed images with minimal programming experience? Yes, it is! We present SPACEc, A Streamlined, Interactive Python Workflow for Multiplexed Image Processing and Analysis. Paper: https://t.co/SOhn4pK8PF
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Today we celebrate a 6 year extension for @EMIL_DKFZ as junior research group! Many thanks for the trust and this opportunity to expand our #biomedical #engineering and #cancer #prevention work on the #tumor #microbiome @DKFZ. Perfect moment to say THANK YOU to everyone... (1/8)
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I'm super excited to share Nimbus, our algorithm for automatic classification of cellular marker expression in multiplexed image data! Nimbus is a pretrained deep learning model that works out of the box across panels with any combination of markers (1/x)
biorxiv.org
Multiplexed imaging offers a powerful approach to characterize the spatial topography of tissues in both health and disease. To analyze such data, the specific combination of markers that are present...
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I am incredibly happy to share that we have recently started the European Society for Spatial Biology (ESSB) @SpatialBio which will be hosting its first conference in Berlin 12-13 of December 2024:
spatialbiologysociety.eu
2nd ESSB Meeting Heidelberg · 14-17 October 2025 We are delighted to organize the 2nd ESSB Meeting in collaboration with EMBL in Heidelberg in October 2025. With support of the experienced EMBL...
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Currently at the inaugural two-day @dkfz junior group leader retreat, advancing #cancer research from discovery to therapy. A bright future awaits with highly motivated next-gen scientists at the helm. 🧬🔬 #CancerResearch #NewPI #InnovationInScience @DKTK_
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Our view on the future opportunities and needs for analyzing cellular metabolism in individual cells and tissues! Hope you enjoying reading it 🙂
A call for action for accessible and standardized tools to unlock single-cell #immunometabolism research. Written with @cosgrove47 @immunometlab @RafaJArguello @felixjhartmann @Lo_Zanzi @Perielab1 @Nina_CabezasW @thalexandrov @LyssiotisLab and many others https://t.co/gLfffzNjV7
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#ERCAdG für zwei DKFZ-Forschende!👏 Hannah Monyer (DKFZ, @uniklinik_hd) forscht zur Entstehung von neurodegenerativen Erkrankungen, @platten_michael (DKFZ, @unimedizinma) zu personalisierten zellulären Immuntherapien gegen Hirntumoren. @ERC_Research ➡️ https://t.co/x6n2rEweyj
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🚨🚨🚨The 3rd annual Spatial Biology Summit is set for Sept 10-12 at Stanford! Join us for talks by experts in MIBI, MSI, CODEX, IMC, Spatial Transcriptomics, computational methods, and more. Stay tuned for details! @MikeAngeloLab @Bendall_Lab @b_iologist @Walk14Cameron #sbs2024
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If this sounds interesting to you and you happen to look for a new position, with @felixjhartmann we are hiring an interinstitutional postdoc to work with us in Heidelberg on capturing and exploring higher order tissue organization from highly multiplexed omics data.
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If you are interested in neighborhood analysis to identify the clinical relevance of higher order tissue organization in the tumor microenvironment from spatial multiplexed omics data @tanevski and @felixjhartmann are recruiting an interinstitutional @ResearchLifesci postdoc
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Local heterogeneity of tissues can define their function and predict clinical outcomes. We introduce Kasumi 💻 https://t.co/2xbfYuo39I to identify spatially localized neighborhoods of intra and intercellular relationships from spatial omics persistent across samples & conditions
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