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GeoMx digital spatial profiling on biopsies of triple negative breast cancer patients

ABSTRACT: GeoMx digital spatial profiling on biopsies of triple negative breast cancer patients

PROVIDER: PRJEB63209 | ENA |

REPOSITORIES: ENA

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GeoMx digital spatial profiling on biopsies of triple negative breast cancer patients

Project description:In this study, we analyzed the differential spatial transcriptome of Triple-Negative Breast Cancer (TNBC) patients who responded in an opposite manner to neoadjuvant chemotherapy (NACT): we compared responders displaying pathological complete response (pCR) with no-responders who showed disease progression during therapy. Diagnostic TruCut biopsies were analyzed using the GeoMx Cancer Transcriptome Atlas (Nanostring).

2023-10-12 | E-MTAB-13069 | biostudies-arrayexpress

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Project description:We applied a spatially resolved, high-dimensional transcriptomic approach to study MPM morpho-logical evolution. 139 regions across 8 biphasic MPMs (B-MPMs) were profiled using the GeoMx™Digital Spatial Profiler and Cancer Transcriptome Atlas to compare epithelioid and sarcomatoid components transcriptional profile and reconstruct the positional context of transcriptional activities and the spatial topology of MPM cells interactions.

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Spatially resolved transcriptomic profiling: an experimental comparison of GeoMx Digital Spatial Profiling and Visium CytAssist spatial transcriptomics in three cancer types (GeoMx)

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2024-11-01 | E-MTAB-14566 | biostudies-arrayexpress

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Nanostring GeoMx digital spatial profliing of myeloid cells from COVID-19 and normal lung

Project description:To determine definitively whether lung myeloid cells exhibit a pro- or anti-inflammatory signature in COVID-19 disease, we performed digital spatial profiling using the nanoString GeoMx ImmuneOncology plus COVID-19 platform on CD68+ macrophages, myeloperoxidase+ granulocytes and cytokeratin+ epithelium in normal and COVID-19 lung tissue specimens, collecting RNA expression data for each type within 6-8 regions of 5mM tissue sections. One COVID-19 lung tissue yielded minimal sequence data and was excluded from analysis. A volcano plot and heat map of differentially expressed genes within macrophages demonstrate that COVID-19 lung macrophages when compared with normal lung macrophages exhibit a largely alternatively activated, wound-healing signature characterized by expression of the alternatively active macrophage marker CD163, complement/coagulation genes (C1QA, C1QB, THBS1, C1S, C1R), IL6 signaling (STAT2, STAT1) and wound healing (COL3A1, COL6A3), but also interferon response signatures (ISG15, OAS3, IFITM2, IFI6, HLA-A, HLA-B, HLA-C) (Fig. 3H-J). As one of the tissues used for macrophage spatial profiling was from a patient was positive for the virus at the time of death, we compared the expression profiles of virus+ and virus- specimens and found that macrophages in virus+ tissues predominantly expressed an interferon-associated signature

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Nanostring GeoMx digital spatial profliing of myeloid cells from COVID-19 and normal lung

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Gene Expression analysis of therapeutical response in Triple Negative Breast tumors.

Project description:10 biopsies before treatment from triple negative patients with complete response were collected. Total RNA was extracted from tumor specimens and the whole transcriptome was quantified with Affymetrix HuGene1.1ST. The biopsies were classified into Good (major or complete) or Poor (absent or minor) therapeutic response subgroup. Whole genome expression of triple negative breast cancer tissues were measured before neoadjuvant chemotherapy

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