Establishment of a Model of Microencapsulated SGC7901 Human Gastric Carcinoma Cells Cocultured with Tumor-Associated Macrophages

Figure 2

(a) Crystal formation in MTT assays in microencapsulated SGC9701 cells. The bluish-violet crystals shown in the photos were the viable cells. (A) Microencapsulated cells on day 0 as control. (B) After culturing for 7 days, some viable cells were seen in the outer layer of the spheroids and increased obviously. (C) At 14 days of culture, there were the most viable cells throughout the culture. (D) At 21 days of culture, the viable cells slightly decreased compared to the culture on the 14th day. Magnification: 200x

(b) Growth curve of microencapsulated SGC9701 cells by MTT assays. The proliferation rate of viable cells increased rapidly over 7–14 days and increased slowly over the following days until reaching a plateau