Proliferative and invasive are two characteristics commonly associated with cancer cells. Proliferation refers to the ability of cancer cells to rapidly divide and multiply, leading to the growth of tumors. This is due to genetic mutations or alterations that result in uncontrolled cell division and an inability of the cells to respond to signals that would normally halt cell division.

Invasiveness refers to the ability of cancer cells to invade and migrate into surrounding tissues and organs, disrupting their normal function. This process is driven by genetic and epigenetic changes that alter the structure and behavior of cancer cells, making them more aggressive and able to penetrate surrounding tissue barriers.

Both of these characteristics are hallmarks of cancer progression and metastasis, and their detection is important for cancer diagnosis and treatment. In vitro studies using cancer cell lines or patient-derived xenograft models can be used to investigate the mechanisms underlying cancer proliferation and invasion, as well as to test the efficacy of new therapies or drugs that target these processes.