PMID- 37323566 OWN - NLM STAT- MEDLINE DCOM- 20230619 LR - 20231207 IS - 2667-2375 (Electronic) IS - 2667-2375 (Linking) VI - 3 IP - 5 DP - 2023 May 22 TI - Subcellular spatially resolved gene neighborhood networks in single cells. PG - 100476 LID - 10.1016/j.crmeth.2023.100476 [doi] LID - 100476 AB - Image-based spatial omics methods such as fluorescence in situ hybridization (FISH) generate molecular profiles of single cells at single-molecule resolution. Current spatial transcriptomics methods focus on the distribution of single genes. However, the spatial proximity of RNA transcripts can play an important role in cellular function. We demonstrate a spatially resolved gene neighborhood network (spaGNN) pipeline for the analysis of subcellular gene proximity relationships. In spaGNN, machine-learning-based clustering of subcellular spatial transcriptomics data yields subcellular density classes of multiplexed transcript features. The nearest-neighbor analysis produces heterogeneous gene proximity maps in distinct subcellular regions. We illustrate the cell-type-distinguishing capability of spaGNN using multiplexed error-robust FISH data of fibroblast and U2-OS cells and sequential FISH data of mesenchymal stem cells (MSCs), revealing tissue-source-specific MSC transcriptomics and spatial distribution characteristics. Overall, the spaGNN approach expands the spatial features that can be used for cell-type classification tasks. CI - (c) 2023 The Authors. FAU - Fang, Zhou AU - Fang Z AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. AD - Machine Learning Graduate Program, Georgia Institute of Technology, Atlanta, GA, USA. FAU - Ford, Adam J AU - Ford AJ AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. FAU - Hu, Thomas AU - Hu T AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. AD - School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA. FAU - Zhang, Nicholas AU - Zhang N AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. AD - Interdisciplinary Bioengineering Graduate Program, Georgia Institute of Technology, Atlanta, GA, USA. FAU - Mantalaris, Athanasios AU - Mantalaris A AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. FAU - Coskun, Ahmet F AU - Coskun AF AD - Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA. AD - Interdisciplinary Bioengineering Graduate Program, Georgia Institute of Technology, Atlanta, GA, USA. AD - Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA. LA - eng GR - K25 AI140783/AI/NIAID NIH HHS/United States GR - T32 GM142616/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20230512 PL - United States TA - Cell Rep Methods JT - Cell reports methods JID - 9918227360606676 SB - IM MH - In Situ Hybridization, Fluorescence/methods MH - *Single-Cell Analysis/methods MH - *Gene Expression Profiling/methods MH - Gene Regulatory Networks MH - Fibroblasts PMC - PMC10261906 OTO - NOTNLM OT - RNA proximity OT - RNA-RNA interactions OT - cell-type classification OT - gene neighborhood networks OT - spatial omics OT - subcellular transcriptomics COIS- The authors declare no competing interests. EDAT- 2023/06/16 06:42 MHDA- 2023/06/19 13:08 PMCR- 2023/05/12 CRDT- 2023/06/16 04:00 PHST- 2022/07/30 00:00 [received] PHST- 2023/02/18 00:00 [revised] PHST- 2023/04/18 00:00 [accepted] PHST- 2023/06/19 13:08 [medline] PHST- 2023/06/16 06:42 [pubmed] PHST- 2023/06/16 04:00 [entrez] PHST- 2023/05/12 00:00 [pmc-release] AID - S2667-2375(23)00099-1 [pii] AID - 100476 [pii] AID - 10.1016/j.crmeth.2023.100476 [doi] PST - epublish SO - Cell Rep Methods. 2023 May 12;3(5):100476. doi: 10.1016/j.crmeth.2023.100476. eCollection 2023 May 22.