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How is a tissue sample used to begin a cell culture?

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tissue culture Tissue culture often requires sterile working conditions and thus is typically performed in a laminar flow cabinet (or tissue culture hood), which circulates filtered air to reduce the risk of culture contamination.

To initiate a tissue culture, a tiny sample of living tissue—often referred to as an explant—is removed from an organism and dispersed on or in a culture medium.12

This medium provides the necessary nutrients and appropriate chemical balance for the cells to survive and function outside the body. Once the tissue is placed in a container such as a flask, tube, or plate, it is incubated at a temperature typically matching the organism's normal environment. Throughout this process, researchers must maintain strictly sterile conditions to prevent contamination by microorganisms.1

While cultures can be started from small fragments of tissue, they may also be initiated from single cells, which can eventually grow into uniform populations known as clones.1