NanoString nCounter is a medium-throughput technology used in mRNA and miRNA differential expression studies. It offers several advantages, including the absence of an amplification step and the ability to analyze low-grade samples. Despite its considerable strengths, the popularity of the nCounter platform in experimental research stabilized in 2022 and 2023, and this trend may continue in the upcoming years. Such stagnation could potentially be attributed to the absence of a standardized analytical pipeline or the indication of optimal processing methods for nCounter data analysis. To standardize the description of the nCounter data analysis workflow, we divided it into five distinct steps: data pre-processing, quality control, background correction, normalization and differential expression analysis. Next, we evaluated eleven R packages dedicated to nCounter data processing to point out functionalities belonging to these steps and provide comments on their applications in studies of mRNA and miRNA samples.
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http://dx.doi.org/10.1016/j.csbj.2024.04.061 | DOI Listing |
Lung Cancer
January 2025
Internal Medicine III, Wakayama Medical University, Wakayama, Japan.
Objectives: The lack of definitive biomarkers presents a significant challenge for chemo-immunotherapy in extensive-stage small-cell lung cancer (ES-SCLC). We aimed to identify key genes associated with chemo-immunotherapy efficacy in ES-SCLC through comprehensive gene expression analysis using machine learning (ML).
Methods: A prospective multicenter cohort of patients with ES-SCLC who received first-line chemo-immunotherapy was analyzed.
Extracell Vesicles Circ Nucl Acids
September 2024
Department of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK.
Aim: Circulating maternal MicroRNA (miRNA) is a promising source of biomarkers for antenatal diagnostics. NanoString nCounter is a popular global screening tool due to its simplicity and ease of use, but there is a lack of standardisation in analysis methods. We examined the effect of user-defined variables upon reported changes in maternal blood miRNA during pregnancy.
View Article and Find Full Text PDFBackground: Primary central nervous system lymphoma (PCNSL) is a rare lymphoid malignancy. Systemic profiling of the PCNSL tumor microenvironment (TME) was previously conducted through gene expression analysis. We investigated the prognostic impact of TME on survival to establish novel prognostic biomarkers in PCNSL patients.
View Article and Find Full Text PDFCancer Med
December 2024
Department of Upper Gastrointestinal Surgery, Royal North Shore Hospital, Sydney, Australia.
Introduction: Intraductal papillary mucinous neoplasms (IPMNs) are diverse premalignant tumors of the pancreas. They progress stepwise from adenoma to carcinoma and offer an opportunity for intervention prior to malignant transformation into pancreatic ductal adenocarcinoma (PDAC). The current study aimed to identify differentially expressed genes (DEGs) in invasive PDAC-associated IPMN vs.
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States.
Background: The inflammatory macrophage response contributes to severe Ebola virus disease, with liver and lung injury in humans.
Objective: We sought to further define the activation status of hepatic and pulmonary macrophage populations in Ebola virus disease.
Methods: We compared liver and lung tissue from terminal Ebola virus (EBOV)-infected and uninfected control cynomolgus macaques challenged via the conjunctival route.
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