MicroRNA-100 expression in Zebrafish whole-mount in situ hybridization
miR-100 expression in zebrafish embryos detected by whole-mount in situ hybridization applying the sensitive miRCURY™ LNA Detection probes (Wienholds E., et al., Science 2005, 309, 310-311). Images show expression in brain (hindbrain, diencephalon); spinal cord. MicroRNA detection products are available from Exiqon, see for example hsa-mir-100. The images were kindly contributed by Dr. Erno Wienholds and Dr. Ronald Plasterk, Hubrecht Laboratory, Utrecht, the Netherlands.
microRNAs (miRNAs) are a class of short endogenous RNAs that act as post-transcriptional modulators of gene expression. To date hundreds of miRNAs have been identifyed in invertebrates, vertebrates and plants. MicroRNAs are currently annotated in the Sanger mir database (see
http://microrna.sanger.ac.uk/ ). Growing evidence suggests that miRNAs exhibit a wide variety of regulatory functions and exert significant effects on cell growth, development and differentiation. In addition, recent studies have shown that human miRNA genes are frequently located in cancer-associated genomic regions, while perturbed miRNA expression patterns have been observed in many human cancers.
Exiqon’s unique and proprietary LNA™ (Locked Nucleic Acid) technology enables sensitive and specific detection of miRNAs by in situ hybridisation. Pre-designed or custom miRCURY™ LNA Detection probes for miRNA detection are now available for all known miRNAs in invertebrates, vertebrates and plants. Also, Exiqons miRCURY™ LNA Arrays for microRNA analysis are available either as pre-spotted arrays or as a full service where you only provide the RNA.
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