Locating RNAs in situ with FISH-STIC probes.

Area of Science:

• Molecular Biology
• Cell Biology
• Biochemistry

Background:

• Cellular molecule localization is crucial for understanding function and regulation.
• Accurate RNA localization techniques are vital for studying noncoding RNA functions.
• Fluorescence in situ hybridization (FISH) is a key method for RNA localization in cells.

Purpose of the Study:

• To provide a detailed protocol for applying FISH-STIC probes for in situ hybridization.
• To offer a flexible and convenient method for localizing individual RNAs within cultured cells.
• To enable RNA localization using multiple fluorophores with fluorescence microscopy.

Main Methods:

• Development and application of Sequential Tagged and Intertwined oligodeoxyribonucleotide Complex (FISH-STIC) probes.
• In situ hybridization on cultured cells.
• Fluorescence microscopy for single-molecule RNA detection.

Main Results:

• FISH-STIC probes allow for straightforward design and commercial synthesis.
• The protocol enables precise intracellular RNA localization at the single-molecule level.
• The method supports the use of multiple fluorophores for versatile RNA visualization.

Conclusions:

• FISH-STIC probes offer a robust and adaptable approach for RNA localization studies.
• This technique facilitates detailed investigation of RNA function and regulation within cells.
• The protocol is suitable for various cell types and research applications in molecular and cell biology.