New fluorescent tools for cancer diagnosis

May 24, 2013 ? In recent years, microRNAs (miRNAs) and other non-coding RNAs are small molecules that help control the expression of specific proteins. In recent years they have emerged as disease biomarkers. miRNA profiles have been used to establish tissue origin for cancers of unknown primary origin, determine prognosis, monitor therapeutic responses and screen for disease, but clinically tractable, diagnostic methods for monitoring miRNA expression in patient samples are not currently available.

In this issue of the Journal of Clinical Investigation, Thomas Tuschl and colleagues at Rockefeller University developed a multicolor fluorescence labeling method that can be used to visualize miRNAs in tissue sections, such as those recovered from biopsies.

Using this method, Tuschl and colleagues were able to identify tumor specific miRNAs in basal cell carcinoma and Merkel cell carcinoma (accompanying image) and distinguish between FFPE sections from the two tumor types.

This proof-of concept study indicates that RNA FISH could serve as a molecular diagnostic in a clinical setting. In a companion commentary, Gennadi Glinksy of Stanford University discusses how this technology could contribute to the development of RNA-based diagnostics and therapeutics.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

---

Story Source:

The above story is reprinted from materials provided by Journal of Clinical Investigation.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

---

Journal References:

1. Neil Renwick, Pavol Cekan, Paul A. Masry, Sean E. McGeary, Jason B. Miller, Markus Hafner, Zhen Li, Aleksandra Mihailovic, Pavel Morozov, Miguel Brown, Tasos Gogakos, Mehrpouya B. Mobin, Einar L. Snorrason, Harriet E. Feilotter, Xiao Zhang, Clifford S. Perlis, Hong Wu, Mayte Su?rez-Fari?as, Huichen Feng, Masahiro Shuda, Patrick S. Moore, Victor A. Tron, Yuan Chang, Thomas Tuschl. Multicolor microRNA FISH effectively differentiates tumor types. Journal of Clinical Investigation, 2013; DOI: 10.1172/JCI68760
2. Gennadi V. Glinsky. RNA-guided diagnostics and therapeutics for next-generation individualized nanomedicine. Journal of Clinical Investigation, 2013; DOI: 10.1172/JCI69268

Note: If no author is given, the source is cited instead.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/health_medicine/genes/~3/7wNPRAjjhC4/130524122006.htm

ray lewis alicia keys randy moss randy moss superbowl commercials OJ Brigance What Time Does The Superbowl Start 2013