Single cell transfection in chick embryos.

Area of Science:

• Developmental Biology
• Cell Biology
• Molecular Biology

Background:

• Understanding cell lineage diversification is crucial in developmental biology.
• Targeting single progenitor cells is essential for lineage tracing and genetic studies.
• Existing methods for single-cell manipulation in vivo can be complex.

Purpose of the Study:

• To describe a straightforward method for transfecting single cells in chicken embryos in-ovo.
• To enable reliable lineage tracing and genetic manipulation of single cells.
• To provide a valuable tool for studying developmental processes.

Main Methods:

• Direct DNA injection into specific tissue domains (somite, neural tube) of chicken embryos in-ovo.
• Sporadic transfection of single epithelial cells.
• Use of reporter genes for lineage tracing up to three days.
• Comparison of genetically manipulated clones with controls.

Main Results:

• Successful and reliable transfection of single cells in chicken tissues.
• Enables tracing of clonal populations derived from single progenitors.
• Allows for the study of genetically modified clonal behaviors.
• Demonstrates advantages over traditional electroporation methods.

Conclusions:

• The described in-ovo single-cell transfection method is technically straightforward and effective.
• It serves as a valuable tool for lineage tracing and genetic manipulation in developmental studies.
• This method complements existing tools and has potential applications in other in-vivo models.