Multiplexed miRNA fluorescence in situ hybridization (miRNA FISH) is an advanced method for visualizing differentially expressed miRNAs, together with other reference RNAs, in archival tissues. Some miRNAs are excellent disease biomarkers due to their abundance and cell-type specificity. However, these short RNA molecules are difficult to visualize due to loss by diffusion, probe mishybridization, and signal detection and signal amplification issues. Here, we describe a reliable and adjustable method for visualizing and normalizing miRNA signals in formalin-fixed paraffin-embedded (FFPE) tissue sections.
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http://dx.doi.org/10.1007/978-1-4939-1459-3_14 | DOI Listing |
Mol Biol Rep
January 2025
Department of Cardiology, Ganzhou People's Hospital, Ganzhou, Jiangxi, China.
As multiple imaging modalities cannot reliably diagnose cardiac tumors, the molecular approach offers alternative ways to detect rare ones. One such molecular approach is CRISPR-based diagnostics (CRISPR-Dx). CRISPR-Dx enables visual readout, portable diagnostics, and rapid and multiplex detection of nucleic acids such as microRNA (miRNA).
View Article and Find Full Text PDFACS Nano
December 2024
School of Biomedical Engineering, Tsinghua University, Beijing 100084, China.
The simultaneous detection of proteins and microRNA (miRNA) at the single extracellular vesicle (EV) level shows great promise for precise disease profiling, owing to the heterogeneity and scarcity of tumor-derived EVs. However, a highly reliable method for multiple-target analysis of single EVs remains to be developed. In this study, a igital ual CRISPR-Cas-powered ingle V valuation () system was proposed to enable the concurrent detection of surface protein and inner miRNA of EVs at the single-molecule level.
View Article and Find Full Text PDFOncol Lett
February 2025
Laboratory of Cancer Epigenetics, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39070, Mexico.
Cervical cancer (CC) is considered a public health problem. Circular RNAs (circRNAs) serve important roles in different types of cancer, including CC. However, the mechanisms used by circRNAs to facilitate CC progression are currently unclear.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Université Paris-Saclay, Evry, France. Electronic address:
Background: microRNAs (miRNAs) are small non-coding RNAs regulating gene expression. They have attracted significant interest as biomarkers for early diagnosis, prediction and monitoring of treatment response in many diseases. As individual miRNAs often lack the required sensitivity and specificity, miRNA signatures are developed for clinical applications.
View Article and Find Full Text PDFAnal Chem
December 2024
Department of Laboratory Medical Center, General Hospital of Northern Theater Command, No. 83, Wenhua Road, Shenhe District, Shenyang 110016, China.
Gastric cancer (GC) is one of the leading causes of cancer mortality in the world. Most patients are in the advanced stage of the disease at the time of diagnosis because the symptoms of early gastric cancer patients are not obvious. Early diagnosis of gastric cancer is still challenging due to the high cost, invasiveness, and low accuracy of traditional diagnostic methods such as endoscopy and biopsy.
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