Objective: To observe the ordered growth behavior of human urinary bladder cancer cell line (BIU) under culture in vitro. Methods: The suspension of BIU cells was spread locally in a culture container. When the cells grew a-long the wall to form a cellular colony, macroscopic and microscopic observations complemented with measurements of the parameters including expanding diameter, expanding rate, cell shape. average cell density, average cell size. dehydrogenase activity and sensitivity to pH were conducted dynamically. Results: During cell culture, obvious laminar characteristics appeared in localized growing BIU cell colonies and there was difference between the cells of different zones in shape, size, density, dehydrogenase activity and sensitivity to pH. Conclusion: Space closing and bio-dissipation result in self-organization of BIU cells with ordered growth behavior. The present experiment offers a simple, controllable model for the study of wavy growth of human cells.
展开▼
