Spatial Transcriptomics: Emerging Technologies in Tissue Gene Expression Profiling Robles Remacho, Agustín Sánchez Martín, Rosario María Díaz Mochón, Juan José In this Perspective, we discuss the current status and advances in spatial transcriptomics technologies, which allow high-resolution mapping of gene expression in intact cell and tissue samples. Spatial transcriptomics enables the creation of highresolution maps of gene expression patterns within their native spatial context, adding an extra layer of information to the bulk sequencing data. Spatial transcriptomics has expanded significantly in recent years and is making a notable impact on a range of fields, including tissue architecture, developmental biology, cancer, and neurodegenerative and infectious diseases. The latest advancements in spatial transcriptomics have resulted in the development of highly multiplexed methods, transcriptomic-wide analysis, and single-cell resolution utilizing diverse technological approaches. In this Perspective, we provide a detailed analysis of the molecular foundations behind the main spatial transcriptomics technologies, including methods based on microdissection, in situ sequencing, single-molecule FISH, spatial capturing, selection of regions of interest, and single-cell or nuclei dissociation. We contextualize the detection and capturing efficiency, strengths, limitations, tissue compatibility, and applications of these techniques as well as provide information on data analysis. In addition, this Perspective discusses future directions and potential applications of spatial transcriptomics, highlighting the importance of the continued development to promote widespread adoption of these techniques within the research community. 2024-05-03T09:37:42Z 2024-05-03T09:37:42Z 2023-10-10 journal article Agustín Robles-Remacho, Rosario M. Sanchez-Martin, and Juan J. Diaz-Mochon Analytical Chemistry 2023 95 (42), 15450-15460 DOI: 10.1021/acs.analchem.3c02029 https://hdl.handle.net/10481/91361 10.1021/acs.analchem.3c02029 eng info:eu-repo/grantAgreement/EC/H2020/MSCA-RISE-101007934 http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Chemical Society