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Tumor-colonizing Lachnoclostridium-mediated chemokine expression enhances the immune infiltration of bladder urothelial carcinoma.
Cancer Immunol Immunother
January 2025
Geneis Beijing Co., Ltd, Beijing, 100102, China.
Limited research into the tumor immune microenvironment (TIME) for bladder urothelial carcinoma (BUC), particularly the neglect of the intratumoral microbiota, has hindered the development of immunotherapies targeting BUC. Here, we collect 401 patients with BUC with host transcriptome samples and matched tumor microbiome samples from The Cancer Genome Atlas database. Besides, two independent BUC cohorts receiving immunotherapy were obtained.
View Article and Find Full Text PDFSpatial expression of fibroblast activation protein-α in clear cell renal cell carcinomas revealed by multiplex immunoprofiling analysis of the tumor microenvironment.
Cancer Immunol Immunother
January 2025
Biobizkaia Health Research Institute, 48903, Barakaldo, Spain.
Clear cell renal cell carcinoma (ccRCC) is one of the most challenging neoplasms because of its phenotypic variability and intratumoral heterogeneity. Because of its variability, ccRCC is a good test bench for the application of new technological approaches to unveiling its intricacies. Multiplex immunofluorescence (mIF) is an emerging method that enables the simultaneous and detailed assessment of tumor and stromal cell subpopulations in a single tissue section.
View Article and Find Full Text PDFThe spatially informed mFISHseq assay resolves biomarker discordance and predicts treatment response in breast cancer.
Nat Commun
January 2025
MultiplexDX, s.r.o., Comenius University Science Park, Bratislava, Slovakia.
Current assays fail to address breast cancer's complex biology and accurately predict treatment response. On a retrospective cohort of 1082 female breast tissues, we develop and validate mFISHseq, which integrates multiplexed RNA fluorescent in situ hybridization with RNA-sequencing, guided by laser capture microdissection. This technique ensures tumor purity, unbiased whole transcriptome profiling, and explicitly quantifies intratumoral heterogeneity.
View Article and Find Full Text PDFIntratumor heterogeneity of EGFR expression mediates targeted therapy resistance and formation of drug tolerant microenvironment.
Nat Commun
January 2025
Translational Immunology Research Program (TRIMM), Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors are commonly used to treat non-small cell lung cancers with EGFR mutations, but drug resistance often emerges. Intratumor heterogeneity is a known cause of targeted therapy resistance and is considered a major factor in treatment failure. This study identifies clones of EGFR-mutant non-small cell lung tumors expressing low levels of both wild-type and mutant EGFR protein.
View Article and Find Full Text PDFA phase I clinical trial adding OX40 agonism to in situ therapeutic cancer vaccination in patients with low-grade B cell lymphoma highlights challenges in translation from mouse to human studies.
Clin Cancer Res
January 2025
Stanford University, Stanford, CA, United States.
Purpose: Activating T cell costimulatory receptors is a promising approach for cancer immunotherapy. In preclinical work, adding an OX40 agonist to in situ vaccination (ISV) with SD101, a TLR9 agonist, was curative in a mouse model of lymphoma. We sought to test this combination in a Phase I clinical trial for patients with low-grade B cell lymphoma.
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