What is the difference between HeLa cells and ordinary cancer cells?

HeLa cells differ significantly from ordinary cancer cells in several aspects. 1. In terms of growth rate, HeLa cells proliferate more rapidly than ordinary cancer cells and possess strong vitality and unlimited proliferative capacity. 2. Regarding lifespan, HeLa cells do not age and die but can divide indefinitely, whereas ordinary cancer cells lack this immortality. Their division and growth include dormant, mitotic, and resting phases. 3. Concerning origin, HeLa cells are typically tumor cells extracted from patients with cervical cancer, while ordinary cancer cells can originate from various types of cancer. 4. Regarding research value, due to their unique characteristics, HeLa cells are widely used in biological and medical research, especially in studies of major diseases such as cancer and AIDS, and thus hold significant scientific value.