Collagen Gel Droplet Culture Method to Examine In Vitro Chemosensitivity
For effective cancer chemotherapy, chemosensitivity testing of anticancer drugs should be performed using fresh surgical specimens obtained from the cancer. We have developed a new in vitro chemosensitivity test named the collagen gel droplet embedded culture drug sensitivity test (CD-DST). The CD-DST method consists of a collagen gel droplet embedded culture step, exposure and washout of anticancer drug, a serum-free culture step, and evaluation of anticancer effect by image analysis. This method has many advantages including a high success rate for primary culture, the need for only a small number of cells for the test, easy quantification of the anticancer effects without contamination with fibroblasts by using an image analysis system, a good correlation between in vitro and in vivo results, and simplicity and speed. The CD-DST method can be performed in the laboratory using a system kit Primaster�.
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