Three-dimensional cell culture systems as an in vitro platform for cancer and stem cell modeling

Three-dimensional(3 D) culture systems are becoming increasingly popular due to their ability to mimic tissue-like structures more effectively than the monolayer cultures. In cancer and stem cell research, the natural cell characteristics and architectures are closely mimicked by the 3 D cell models. Thus, the 3 D cell cultures are promising and suitable systems for various proposes, ranging from disease modeling to drug target identification as well as potential therapeutic substances that may transform our lives. This review provides a comprehensive compendium of recent advancements in culturing cells, in particular cancer and stem cells, using 3 D culture techniques. The major approaches highlighted here include cell spheroids, hydrogel embedding, bioreactors, scaffolds, and bioprinting. In addition, the progress of employing 3 D cell culture systems as a platform for cancer and stem cell research was addressed, and the prominent studies of 3 D cell culture systems were discussed.