Solid-phase combinatorial synthesis using microarrays of microcompartments with light-induced on-chip cell screening.

Area of Science:

• Biotechnology
• Chemical Biology
• Materials Science

Background:

• Traditional drug discovery involves separate synthesis and screening steps, leading to low throughput and high costs.
• Inefficiency in drug discovery stems from the spatial and temporal separation of synthesis and biological evaluation.
• There is a need for integrated platforms that accelerate the drug discovery pipeline.

Purpose of the Study:

• To develop a miniaturized platform combining combinatorial solid-phase synthesis and high-throughput cell screening.
• To create a system enabling controlled, light-induced release of synthesized compounds for biological assays.
• To demonstrate the platform's utility for creating chemical libraries and assessing cell viability.

Main Methods:

• Fabrication of nanoporous polymer layers (poly(2-hydroxyethyl methacrylate-co-ethylene dimethacrylate)) with distinct hydrophilic and superhydrophobic regions.
• Utilizing porous polymer within hydrophilic spots as a support for solid-phase synthesis.
• Employing photo-cleavable linkers for UV-triggered release of synthesized products into adjacent droplets containing reagents or cells.

Main Results:

• Successful implementation of peptide synthesis to generate a chemical library on the platform.
• Demonstrated controlled, light-induced release of synthesized compounds, allowing spatial, temporal, and quantitative control.
• Confirmed high cell viability after UV-triggered small-molecule release, indicating compatibility with biological systems.

Conclusions:

• The developed platform integrates synthesis and screening on a miniaturized scale, significantly improving drug discovery efficiency.
• The light-induced release mechanism offers precise control over compound delivery for biological testing.
• This approach shows promise for diverse cell lines and applications in chemical library synthesis and drug screening.