<p>One of the central challenges in oncology is understanding why tumours stop responding to therapy. Clinicians see this repeatedly: an initial response that gives way to relapse, often driven by the tumour's ability to adapt at the molecular level. These adaptations are not static. They unfold over hours, days, and weeks, and they vary across different regions of the same tumour.</p><p>This means that the molecular programmes that enable a tumour to escape treatment are <i>dynamic, spatially organised, and highly patient-specific</i>. Yet the tools we use today, bulk sequencing, fixed-tissue analysis, and endpoint assays, capture only isolated moments in time. They fall short when clinicians need to know how a tumour changes during treatment, where resistance emerges within the tissue, and when a vulnerable state might be present. This gap calls for a new paradigm for tumour profiling: capturing molecular dynamics directly in living tissue, in both space and time (Figure 1).</p><p>Emerging spatial and temporal omics technologies are heralding this paradigm, but each captures only part of the picture.</p><p>Spatial omics platforms provide detailed maps of fixed biopsy material, yet remain static snapshots that cannot show how these patterns change once treatment begins. Temporal profiling methods offer insight into dynamic responses but rely on sequential biopsies and cannot reveal where within the tissue those changes arise. Lineage tracing,<span><sup>1</sup></span> metabolic labelling,<span><sup>2</sup></span> and live-tissue imaging<span><sup>3</sup></span> each contribute fragments of the picture, but they either require destructive processing, genetic manipulation, or provide only limited molecular depth.</p><p>The core challenge remains: we can map a tumour's landscape or track its evolution, but not capture both in living tissue. This limits our ability to detect early resistance and make timely, biology-guided decisions.</p><p>A key barrier in studying treatment response is that most molecular analyses require destroying the tissue. This makes it impossible to follow how the same piece of patient-derived material changes over time. Nanotechnology now offers a way around this by enabling longitudinal molecular sampling: the ability to extract small amounts of intracellular material from living tissue without compromising its viability.</p><p>Pioneering work using single-probe technologies such as nanopipettes<span><sup>4</sup></span> and FluidFM<span><sup>5</sup></span> showed that it is possible to take ‘live-cell biopsies’: tiny samples of RNA, proteins, or metabolites from the same living cell at multiple timepoints. These studies proved the concept that molecular pathways can be monitored dynamically in living systems, a breakthrough step for temporal omics. However, these approaches work cell-by-cell and are not scalable to tissue-level analysis or to most types of patient-derived samples used in clinical research.</p><p>Nanoneedle a
{"title":"A new paradigm for tumour profiling: Spatiotemporal omics in living tissue","authors":"Ciro Chiappini","doi":"10.1002/ctm2.70547","DOIUrl":"10.1002/ctm2.70547","url":null,"abstract":"<p>One of the central challenges in oncology is understanding why tumours stop responding to therapy. Clinicians see this repeatedly: an initial response that gives way to relapse, often driven by the tumour's ability to adapt at the molecular level. These adaptations are not static. They unfold over hours, days, and weeks, and they vary across different regions of the same tumour.</p><p>This means that the molecular programmes that enable a tumour to escape treatment are <i>dynamic, spatially organised, and highly patient-specific</i>. Yet the tools we use today, bulk sequencing, fixed-tissue analysis, and endpoint assays, capture only isolated moments in time. They fall short when clinicians need to know how a tumour changes during treatment, where resistance emerges within the tissue, and when a vulnerable state might be present. This gap calls for a new paradigm for tumour profiling: capturing molecular dynamics directly in living tissue, in both space and time (Figure 1).</p><p>Emerging spatial and temporal omics technologies are heralding this paradigm, but each captures only part of the picture.</p><p>Spatial omics platforms provide detailed maps of fixed biopsy material, yet remain static snapshots that cannot show how these patterns change once treatment begins. Temporal profiling methods offer insight into dynamic responses but rely on sequential biopsies and cannot reveal where within the tissue those changes arise. Lineage tracing,<span><sup>1</sup></span> metabolic labelling,<span><sup>2</sup></span> and live-tissue imaging<span><sup>3</sup></span> each contribute fragments of the picture, but they either require destructive processing, genetic manipulation, or provide only limited molecular depth.</p><p>The core challenge remains: we can map a tumour's landscape or track its evolution, but not capture both in living tissue. This limits our ability to detect early resistance and make timely, biology-guided decisions.</p><p>A key barrier in studying treatment response is that most molecular analyses require destroying the tissue. This makes it impossible to follow how the same piece of patient-derived material changes over time. Nanotechnology now offers a way around this by enabling longitudinal molecular sampling: the ability to extract small amounts of intracellular material from living tissue without compromising its viability.</p><p>Pioneering work using single-probe technologies such as nanopipettes<span><sup>4</sup></span> and FluidFM<span><sup>5</sup></span> showed that it is possible to take ‘live-cell biopsies’: tiny samples of RNA, proteins, or metabolites from the same living cell at multiple timepoints. These studies proved the concept that molecular pathways can be monitored dynamically in living systems, a breakthrough step for temporal omics. However, these approaches work cell-by-cell and are not scalable to tissue-level analysis or to most types of patient-derived samples used in clinical research.</p><p>Nanoneedle a","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 12","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12685608/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145707560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wanxin Duan, Mingjie Wang, Yifei Liu, Celine Desoyer, Christian Baumgartner, Xiangdong Wang
Precision medicine has evolved through distinct phases, from the origins of the Human Genome Project to mutation-based targeted therapies. This editorial posits that “stereological cell biomedicine” could be a new approach promoting the development of the next generation of precision medicine. This emerging discipline transitions the focus from genomic data to the multi-dimensional and spatiotemporal complexity of single cells. Driven by advances in Stereo single-cell multi-omics (Stereo Cell-seq), spatial transcriptomics (Stereo-seq), and single-cell surfaceomics (sc-surfaceome), this approach aims to capture the stereologically dynamic interactions between organelles within a cell and between cells in the tissue. We argue that understanding the spatiotemporal location of molecules, particularly protein interactions at organelle interfaces and on the cell surface, is as critical as their abundance for defining cellular function in health and disease. Integrating these high-resolution measurements with artificial intelligence and computational modelling will bridge the gap between advanced omics and pathology. Initiatives such as the newly established European Stereo Cell Center (ESCC) signal a global shift towards this new paradigm, which promises to unlock novel diagnostic biomarkers and therapeutic targets for truly multi-factorial and dynamic precision medicine.
{"title":"Stereo cell: A new approach to the next generation of clinical precision medicine","authors":"Wanxin Duan, Mingjie Wang, Yifei Liu, Celine Desoyer, Christian Baumgartner, Xiangdong Wang","doi":"10.1002/ctm2.70537","DOIUrl":"https://doi.org/10.1002/ctm2.70537","url":null,"abstract":"<p>Precision medicine has evolved through distinct phases, from the origins of the Human Genome Project to mutation-based targeted therapies. This editorial posits that “stereological cell biomedicine” could be a new approach promoting the development of the next generation of precision medicine. This emerging discipline transitions the focus from genomic data to the multi-dimensional and spatiotemporal complexity of single cells. Driven by advances in Stereo single-cell multi-omics (Stereo Cell-seq), spatial transcriptomics (Stereo-seq), and single-cell surfaceomics (sc-surfaceome), this approach aims to capture the stereologically dynamic interactions between organelles within a cell and between cells in the tissue. We argue that understanding the spatiotemporal location of molecules, particularly protein interactions at organelle interfaces and on the cell surface, is as critical as their abundance for defining cellular function in health and disease. Integrating these high-resolution measurements with artificial intelligence and computational modelling will bridge the gap between advanced omics and pathology. Initiatives such as the newly established European Stereo Cell Center (ESCC) signal a global shift towards this new paradigm, which promises to unlock novel diagnostic biomarkers and therapeutic targets for truly multi-factorial and dynamic precision medicine.</p>","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 12","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctm2.70537","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145626431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CLINICAL AND TRANSLATIONAL MEDICINE","authors":"","doi":"10.1002/ctm2.70544","DOIUrl":"https://doi.org/10.1002/ctm2.70544","url":null,"abstract":"","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 12","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctm2.70544","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145626357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
<p>T cells are central orchestrators of adaptive immunity and play important and complex roles in chronic inflammation, despite that their roles remain even paradoxical. The dysregulations of T cells occur in chronic diseases, such as inflammation and cancer, from being protectors to potent drivers of tissue pathology.<span><sup>1-3</sup></span> Of those, the pro-inflammatory tissue-resident memory (TRM) T cells accumulate within the tissue, perpetuating a cycle of inflammation. Subsets of TRM T cells, including those producing the highly inflammatory cytokine interleulin-17 (IL-17), are directly implicated in tissue damage, to form the ectopic lymphoid tissues, remodel the microenvironment, and amplify the local response in inflammation and cancer.<span><sup>4, 5</sup></span> Reformed lymphoid alter local gradients of inflammatory mediators to trap and retain more lymphocytes and exacerbate the microenvironmental bioecology. The pre-activated TRM-like T cells harboured in lungs of smokers as the pre-existing state of a tissue can create an immune pressure that reprograms subsequent tumour evolution and response to therapy and profoundly influences disease progression.<span><sup>6</sup></span></p><p>The deep understanding of TRM T-cell phenomes and bio-behaviours provides new insights for the identification of diagnostic biomarkers and therapeutic targets. The TRM T cells as a special type of memory T cells are categorised on basis of the locations (e.g., gut-TRM, lung-TRM, brain-TRM), cell surface antigens (e.g., CD8⁺TRM, CD4⁺TRM), or cell identity gene markers measured by single-cell RNA sequencing (scRNA-seq).<span><sup>7-9</sup></span> One of biological characteristics is their long-term residence in specific tissue to take an immediate action in the initiation of immune responses to invaded pathogens and reduction infectious spreads, faster than circulating memory T cells. Of those, CD8⁺TRM T cells are the majority responsible for antiviral and anti-tumour immunity and can directly terminate infected cells and pathogen replication by releasing inflammatory mediators and enzymes. CD4⁺TRM can support other immune cells (like B cells for antibody production, macrophages for activation), and regulate local immune responses to infectious and autoimmune diseases by enhancing the synergistic effects of the immune networks. In addition, TRM T cells play critical roles in the tissue repair by controlling microenvironmental contents of inflammatory mediators and recognising abnormal cells like infected cells or cancer cells to reduce the risk of tissue damage and maintain microenvironmental immune bioecology. The molecular processes of reservable immune memory in TRM T cells can provide a number of alternatives for vaccination and immunotherapy.</p><p>Recent redefinition of redefining T-cell behaviour in inflamed or tumour microenvironment are largely driven by high-resolution techniques such as scRNA-seq, spatial transcriptomics and multi-omics integ
{"title":"Translational values of tissue-resident memory T cells in chronic inflammation and cancer","authors":"Wanxin Duan, Xiangdong Wang","doi":"10.1002/ctm2.70516","DOIUrl":"https://doi.org/10.1002/ctm2.70516","url":null,"abstract":"<p>T cells are central orchestrators of adaptive immunity and play important and complex roles in chronic inflammation, despite that their roles remain even paradoxical. The dysregulations of T cells occur in chronic diseases, such as inflammation and cancer, from being protectors to potent drivers of tissue pathology.<span><sup>1-3</sup></span> Of those, the pro-inflammatory tissue-resident memory (TRM) T cells accumulate within the tissue, perpetuating a cycle of inflammation. Subsets of TRM T cells, including those producing the highly inflammatory cytokine interleulin-17 (IL-17), are directly implicated in tissue damage, to form the ectopic lymphoid tissues, remodel the microenvironment, and amplify the local response in inflammation and cancer.<span><sup>4, 5</sup></span> Reformed lymphoid alter local gradients of inflammatory mediators to trap and retain more lymphocytes and exacerbate the microenvironmental bioecology. The pre-activated TRM-like T cells harboured in lungs of smokers as the pre-existing state of a tissue can create an immune pressure that reprograms subsequent tumour evolution and response to therapy and profoundly influences disease progression.<span><sup>6</sup></span></p><p>The deep understanding of TRM T-cell phenomes and bio-behaviours provides new insights for the identification of diagnostic biomarkers and therapeutic targets. The TRM T cells as a special type of memory T cells are categorised on basis of the locations (e.g., gut-TRM, lung-TRM, brain-TRM), cell surface antigens (e.g., CD8⁺TRM, CD4⁺TRM), or cell identity gene markers measured by single-cell RNA sequencing (scRNA-seq).<span><sup>7-9</sup></span> One of biological characteristics is their long-term residence in specific tissue to take an immediate action in the initiation of immune responses to invaded pathogens and reduction infectious spreads, faster than circulating memory T cells. Of those, CD8⁺TRM T cells are the majority responsible for antiviral and anti-tumour immunity and can directly terminate infected cells and pathogen replication by releasing inflammatory mediators and enzymes. CD4⁺TRM can support other immune cells (like B cells for antibody production, macrophages for activation), and regulate local immune responses to infectious and autoimmune diseases by enhancing the synergistic effects of the immune networks. In addition, TRM T cells play critical roles in the tissue repair by controlling microenvironmental contents of inflammatory mediators and recognising abnormal cells like infected cells or cancer cells to reduce the risk of tissue damage and maintain microenvironmental immune bioecology. The molecular processes of reservable immune memory in TRM T cells can provide a number of alternatives for vaccination and immunotherapy.</p><p>Recent redefinition of redefining T-cell behaviour in inflamed or tumour microenvironment are largely driven by high-resolution techniques such as scRNA-seq, spatial transcriptomics and multi-omics integ","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 12","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctm2.70516","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145595363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}