Abstract

Chemical groups of microenvironment play an important role in the adhesion, proliferation, and apoptosis of tumor cells. The different chemical groups (CH3 , OH, COOH) were grafted on the surfaces with the same density by self-assembly monolayer (SAM) technique to introduce the influence of different microenvironments of the human bladder cancer (5637) cells. The results indicated that the 5637 cells on COOH surface exhibited the lowest proliferation rate and the highest apoptosis rate on the first and fifth day because of negative charge and polarity of the COOH group, which might help optimize biomedicine materials and find new methods to treat bladder cancer.

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