Long-term C. elegans immobilization enables high resolution developmental studies in vivo

Area of Science:

• Developmental Biology
• Cellular Biology
• Microfluidics

Background:

• Live imaging of Caenorhabditis elegans (C. elegans) is crucial for studying conserved cellular pathways and morphogenesis.
• Conventional immobilization methods (physical and chemical) significantly impact physiological processes, limiting research on dynamic developmental events.
• Existing techniques hinder high-resolution in vivo imaging of C. elegans.

Purpose of the Study:

• To develop and present a novel, user-friendly microfluidic platform for long-term immobilization of viable C. elegans.
• To enable high-resolution, in vivo live imaging of C. elegans without compromising normal development.
• To overcome the limitations imposed by conventional immobilization techniques in C. elegans research.

Main Methods:

• Development of a microfluidic device for C. elegans immobilization.
• Utilizing the platform for long-term, high-resolution live imaging of C. elegans.
• Demonstration of the platform's capabilities through specific biological assays.

Main Results:

• Successful long-term immobilization of viable, normally developing C. elegans.
• Compatibility of the microfluidic platform with high-resolution image acquisition.
• Demonstrated continuous assessment of anchor cell invasion, distal tip cell migration, and germ cell apoptosis in vivo.

Conclusions:

• The novel microfluidic platform effectively immobilizes C. elegans for extended periods, preserving viability and normal development.
• This technology overcomes critical limitations of conventional methods, facilitating advanced in vivo live imaging studies.
• The platform opens new avenues for detailed investigation of cellular pathways and developmental processes in C. elegans.