There are several types of cell cultures used in toxicology, including primary cultures, continuous cell lines, and stem cell cultures. Primary cultures are derived directly from tissues and maintain many of the characteristics of the original tissue. Continuous cell lines, such as HeLa or CHO cells, are immortalized cells that can be propagated indefinitely. Stem cell cultures offer the ability to differentiate into various cell types, providing a versatile tool for studying toxicity across different tissues.
