Sejtkészítmények

Sejtkészítmények, often translated as cell preparations or cell cultures, refer to the collection and maintenance of living cells outside their natural environment. This practice is fundamental to numerous scientific disciplines, including biology, medicine, and biotechnology. The primary goal of creating sejtkészítmények is to study cellular functions, test the effects of drugs or treatments, produce biological products, and understand disease mechanisms in a controlled setting.

There are several types of sejtkészítmények. Primary cell cultures are derived directly from tissues and have a limited lifespan. Cell lines, on the other hand, are immortalized cells that can be cultured indefinitely, often due to mutations that overcome normal cellular senescence. Sejtkészítmények can be grown as adherent cultures, where cells attach to a surface, or as suspension cultures, where cells grow freely in a liquid medium.

The success of maintaining viable sejtkészítmények relies on providing an appropriate culture medium containing essential nutrients, growth factors, and salts. Sterility is paramount to prevent contamination by microorganisms. Incubators are used to maintain optimal temperature and atmospheric conditions, typically a specific percentage of carbon dioxide. Sejtkészítmények are indispensable tools for advancing our understanding of life at the cellular level and for developing new therapeutic strategies.