were performed using a 2-tailed Student's t test, with a P value of less than 0.05 considered significant.Study approval. All mouse experiments were conducted with the approval of the IACUC of the University of Utah and in accordance with international legal and ethical standards. Clinical analyses were performed with approval from the IRB of the University of Utah and in accordance with legal and ethical standards. As only extant records were reviewed, the requirement for consent was waived by the IRB.
Author contributionsKBJ and MLH conceived the experiments. JJB, BEI, HJ, MLH, YW, MH and KBJ performed experiments. JJB, AG, and KBJ analyzed data. MRC contributed mice and resources. KBJ wrote the manuscript, and all authors edited it.