Encapsulation of viable cells within polyacrylate membranes

Area of Science:

• Biomaterials Science
• Cell Biology
• Polymer Chemistry

Background:

• Cell encapsulation is crucial for various biotechnological applications, including antibody production.
• Developing biocompatible and semipermeable membranes is essential for maintaining cell viability and function post-encapsulation.
• Hybridoma cells are widely used for monoclonal antibody production.

Purpose of the Study:

• To develop a novel semipermeable hydrogel membrane for encapsulating viable hybridoma cells.
• To assess the viability and functionality of encapsulated hybridoma cells.
• To evaluate the antibody production capacity of encapsulated hybridoma cells.

Main Methods:

• Encapsulation of hybridoma cells using a polyanionic acrylic copolymer and polycationic polymers.
• Formation of a polyelectrolyte complex membrane via interpolymeric ionic interactions.
• Assessment of cell viability and growth within microcapsules.
• Quantification of antihuman IgM produced by encapsulated cells using immunoassay.

Main Results:

• A novel semipermeable hydrogel membrane was successfully developed for cell encapsulation.
• Hybridoma cells remained viable and divided within the microcapsules over 8 days.
• A direct relationship was observed between polyanion solution viscosity and hybridoma cell viability.
• Encapsulated hybridoma cells produced antihuman IgM at a concentration of 3 µg/ml.

Conclusions:

• The developed hydrogel membrane is suitable for encapsulating viable hybridoma cells.
• The encapsulation method supports cell division and antibody production.
• This technique offers a promising approach for the development of microcapsules for antibody production.