摘要

Artificial three-dimensional (3D) in vitro tumor models mimicking the native cell architecture and environments are highly desirable tools for studying tumor progression and screening therapeutics. In this work, a 3D bacterial cellulose (BC) scaffold with multichanneled macropores (similar to 300 mu m) was fabricated. The obtained MM-BC scaffold was characterized by SEM, mercury intrusion porosimeter, contact angle and mechanical measurements, and determined for its potential as a tumor model. It was demonstrated that the MM-BC scaffold exhibited hierarchical pore structure and sufficient mechanical strength. Moreover, the MM-BC scaffold supported the adhesion, migration, and proliferation of primary culture cancer cells, allowed the cells' infiltration into the core of the scaffold. The results suggested that the MM-BC scaffold can be an effective in vitro tumor model to study cancer progression and drug screening.