Circulating Tumor Cell is referred to as CTC, Chinese for blood circulation tumor cells, cancer cells that invade the blood vessel or lymphatic system from in situ tumors. As the tumor grows, some of the tumor cells will break off from the tumor in situ, like the "seed" of cancer spread, through the blood or lymphatic system to various organs and tissues in the body. These "seeds" are called circulating tumor cells (CTCs), which are simply the tumor cells that run around the body.
The E.V.A. culture system requires only 20 mL of clinical blood samples to shape tumor organoids while maintaining a certain tumor heterogeneity and microenvironment. This type of 3D culture has the following advantages:1. Cancer cells grow in a three-dimensional environment, closer to the true structure and function of tissues in the body. 2. The response of cancer cells to drugs in 3D culture is closer to that of the body, which can more accurately predict the effectiveness and toxicity of drugs.
The library of testable drugs is up to 100 combinations , spanning chemotherapy drugs, hormonal drugs and targeted drugs.
Only blood samples are required, which is easy to collect, and is suitable for patients who are difficult to obtain tissue samples or are elderly.
Fully customized drug list, selected by the physician to test the drug, can be combined with genetic testing to achieve further personalized precision medicine.
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