MOSAIK: Multi-Origin Spatial Transcriptomics Analysis and Integration Kit

Fuente: arXiv
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Main Authors: Baptista, Anthony, Nuamah, Rosamond, Chiappini, Ciro, Grigoriadis, Anita
Format: Preprint
Published: 2025
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author Baptista, Anthony
Nuamah, Rosamond
Chiappini, Ciro
Grigoriadis, Anita
author_facet Baptista, Anthony
Nuamah, Rosamond
Chiappini, Ciro
Grigoriadis, Anita
contents Spatial transcriptomics (ST) has revolutionised transcriptomics analysis by preserving tissue architecture, allowing researchers to study gene expression in its native spatial context. However, despite its potential, ST still faces significant technical challenges. Two major issues include: (1) the integration of raw data into coherent and reproducible analysis workflows, and (2) the accurate assignment of transcripts to individual cells. To address these challenges, we present MOSAIK, the first fully integrated, end-to-end workflow that supports raw data from both NanoString CosMx Spatial Molecular Imager (CosMx) and 10x Genomics Xenium In Situ (Xenium). MOSAIK (Multi-Origin Spatial Transcriptomics Analysis and Integration Kit) unifies transcriptomics and imaging data into a single Python object based on the spatialdata format. This unified structure ensures compatibility with a broad range of Python tools, enabling robust quality control and downstream analyses. With MOSAIK, users can perform advanced analyses such as re-segmentation (to more accurately assign transcripts to individual cells), cell typing, tissue domain identification, and cell-cell communication within a seamless and reproducible Python environment.
format Preprint
id arxiv_https___arxiv_org_abs_2505_11384
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MOSAIK: Multi-Origin Spatial Transcriptomics Analysis and Integration Kit
Baptista, Anthony
Nuamah, Rosamond
Chiappini, Ciro
Grigoriadis, Anita
Quantitative Methods
Spatial transcriptomics (ST) has revolutionised transcriptomics analysis by preserving tissue architecture, allowing researchers to study gene expression in its native spatial context. However, despite its potential, ST still faces significant technical challenges. Two major issues include: (1) the integration of raw data into coherent and reproducible analysis workflows, and (2) the accurate assignment of transcripts to individual cells. To address these challenges, we present MOSAIK, the first fully integrated, end-to-end workflow that supports raw data from both NanoString CosMx Spatial Molecular Imager (CosMx) and 10x Genomics Xenium In Situ (Xenium). MOSAIK (Multi-Origin Spatial Transcriptomics Analysis and Integration Kit) unifies transcriptomics and imaging data into a single Python object based on the spatialdata format. This unified structure ensures compatibility with a broad range of Python tools, enabling robust quality control and downstream analyses. With MOSAIK, users can perform advanced analyses such as re-segmentation (to more accurately assign transcripts to individual cells), cell typing, tissue domain identification, and cell-cell communication within a seamless and reproducible Python environment.
title MOSAIK: Multi-Origin Spatial Transcriptomics Analysis and Integration Kit
topic Quantitative Methods
url https://arxiv.org/abs/2505.11384