Multiplexed spatial transcriptomics methods and the application of expansion microscopy
While spatial transcriptomics has undeniably revolutionized our ability to study cellular organization, it has driven the development of a great number of innovative transcriptomics methods, which can be classified into in situ sequencing (ISS) methods, in situ hybridization (ISH) techniques, and ne...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 July 2024
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| In: |
Frontiers in cell and developmental biology
Year: 2024, Jahrgang: 12, Pages: 1-21 |
| ISSN: | 2296-634X |
| DOI: | 10.3389/fcell.2024.1378875 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3389/fcell.2024.1378875 Verlag, kostenfrei, Volltext: https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2024.1378875/full 
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| Verfasserangaben: | Andra Fortner and Octavian Bucur |
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| 520 | |a While spatial transcriptomics has undeniably revolutionized our ability to study cellular organization, it has driven the development of a great number of innovative transcriptomics methods, which can be classified into in situ sequencing (ISS) methods, in situ hybridization (ISH) techniques, and next-generation sequencing (NGS)-based sequencing with region capture. These technologies not only refine our understanding of cellular processes, but also open up new possibilities for breakthroughs in various research domains. One challenge of spatial transcriptomics experiments is the limitation of RNA detection due to optical crowding of RNA in the cells. Expansion microscopy (ExM), characterized by the controlled enlargement of biological specimens, offers a means to achieve super-resolution imaging, overcoming the diffraction limit inherent in conventional microscopy and enabling precise visualization of RNA in spatial transcriptomics methods. In this review, we elaborate on ISS, ISH and NGS-based spatial transcriptomic protocols and on how performance of these techniques can be extended by the combination of these protocols with ExM. Moving beyond the techniques and procedures, we highlight the broader implications of transcriptomics in biology and medicine. These include valuable insight into the spatial organization of gene expression in cells within tissues, aid in the identification and the distinction of cell types and subpopulations and understanding of molecular mechanisms and intercellular changes driving disease development. | ||
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