Which of the following is false?

The statement that is identified as false is that cell adhesion is not wanted when designing a biomaterial to be implanted into the body. In fact, cell adhesion is a critical aspect when it comes to the success of biomaterials used in tissue engineering. Effective cell adhesion is necessary for the integration of the biomaterial with surrounding tissues, allowing for the appropriate biological response. When biomaterials allow for proper cell adhesion, they facilitate new tissue formation and encourage the desired cellular behaviors, which are essential for healing and regeneration.

In tissue engineering, promoting cell adhesion helps to ensure that cells properly colonize the biomaterial, leading to the development of functional tissues. A biomaterial that does not support cell adhesion could fail to achieve its purpose, resulting in poor integration with the host tissue or rejection by the body.

The other statements are accurate: cell adhesion is essential for tissue formation; cells utilize various types of cell junctions to create connections; and cancer cells indeed exhibit altered adhesion behaviors compared to normal cells, which contributes to their ability to invade tissues and metastasize.