<qa>  What is the cause of the killing of 0250 expressing micrometastatic RCC?Our hypothesis is that immunization with G250MontanideGM-CSF plus IL-2 can lead to an expansion of G250-specific CTL and result in killing of 0250 expressing micrometastatic RCC. We propose a dose finding study of escalating low doses of IL 2 subcutaneous, since no prior study has specifically evaluated the use of low dose IL-2 as a cytokine adjuvant and attempted to establish a correlation between dose and immunolgic response. 