NR5A1 and leukemia: As shown in a study by Vaikari et al. [55], the average residence time of the bioengineered PD nanoworm α-CD99-ELP examined for its efficacy against leukemia in mice was dramatically increased, with a circulating half-life of 16 h and a mean residence time of 21.3 h and could reside in liver, spleen and kidney tissue for more than 96 h after infiltration.