Protocol to denoise spatially resolved transcriptomics data utilizing optimal transport-based gene filtering algorithm

Summary: Spatially resolved transcriptomics (SRT) data contain intricate noise due to the diffusion of transcripts caused by tissue fixation, permeabilization, and cell lysis during the experiment. Here, we present a protocol for denoising SRT data using SpotGF, an optimal transport-based gene filte...

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Bibliographic Details
Main Authors: Lin Du, Jingmin Kang, Jie Li, Hua Qin, Yong Hou, Hai-Xi Sun
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:STAR Protocols
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666166725000310
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Summary:Summary: Spatially resolved transcriptomics (SRT) data contain intricate noise due to the diffusion of transcripts caused by tissue fixation, permeabilization, and cell lysis during the experiment. Here, we present a protocol for denoising SRT data using SpotGF, an optimal transport-based gene filtering algorithm, without modifying the raw gene expression. We describe steps for data preparation, SpotGF score calculation, filtering threshold determination, denoised data generation, and visualization. Our protocol enhances SRT quality and improves the performance of downstream analyses.For complete details on the use and execution of this protocol, please refer to Du et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
ISSN:2666-1667