Tagging and Deleting of Endogenous Caveolar Components Using CRISPR/Cas9 Technology

Area of Science:

• Cell Biology
• Molecular Biology
• Genetics

Background:

• Caveolae are specialized membrane microdomains involved in cellular processes like endocytosis and signal transduction.
• Understanding caveolar component function requires precise genetic manipulation tools.

Purpose of the Study:

• To establish CRISPR/Cas9-mediated methods for generating genetically modified cells with altered caveolar components.
• To provide examples of knock-in (KI) and knock-out (KO) strategies for specific caveolar proteins.

Main Methods:

• CRISPR/Cas9 gene editing was employed for targeted genetic modifications.
• Cas9 was delivered via plasmid DNA using electroporation.
• Fluorescence-activated cell sorting (FACS) was used for selection and enrichment of edited cells.
• Specific examples include knock-in of EHD2 with eGFP and knock-out of Caveolin1 (Cav1).

Main Results:

• Successful generation of tissue culture cells with fluorescently tagged caveolar proteins (e.g., EHD2-eGFP).
• Successful generation of cells with deleted endogenous caveolar components (e.g., Cav1 KO).
• A list of validated guide RNA (gRNA) sequences for targeting various caveolar components is provided.

Conclusions:

• CRISPR/Cas9 technology is effective for precise genetic engineering of caveolar components in cells.
• These engineered cell lines facilitate the study of caveolae structure and function.
• The provided gRNA list aids researchers in similar genetic modification studies.