Thermo-modulated Hela cell release from an elastic and biocompatible hydrogel

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Cell Biology

Background:

• Cell proliferation and detachment are crucial for cell culture and therapies.
• Developing advanced hydrogel scaffolds is essential for improving these processes.

Purpose of the Study:

• To develop and characterize a novel double network hydrogel with thermosensitive properties.
• To evaluate the hydrogel's mechanical properties and its ability to support cell growth and controlled release.

Main Methods:

• Fabrication of a double network hydrogel comprising a thermosensitive P(AEtMA-Cl-DEAEA) network and a polyacrylamide network.
• Assessment of hydrogel elasticity and structural integrity under deformation.
• Adsorption and release of Bovine Serum Albumin (BSA) at different temperatures.
• Culturing of HeLa cells on the hydrogel scaffolds at 37°C and evaluating detachment at 20°C.

Main Results:

• The double network hydrogel exhibited excellent elasticity and maintained structural integrity.
• BSA adsorption and release were successfully demonstrated, triggered by temperature changes.
• HeLa cells proliferated on the hydrogel scaffolds at 37°C.
• A significant percentage of cells (32.6% ± 6.4%) detached upon cooling to 20°C, remaining viable.

Conclusions:

• The developed double network hydrogel possesses superior mechanical properties and unique temperature-triggered cell release capabilities.
• This hydrogel shows significant potential for applications in cell culture, tissue engineering, and cell-based therapies.