Figure 4

Interferon-γ release. Representative results again from patient 4. In all, 1 × 10⁵ lymphocytes were cocultured for 24 h with 1 × 10⁴ RCC cells from the three cell lines: 2220R, 2245R and 2246R. After 24 h the supernatants were removed and assayed for interferon-γ by ELISA. Error bars refer to the s.d. for each dilution.