SLIT2 and neoplasm: Additionally, functional annotation analysis revealed that the down-regulated DNAJB4 (DnaJ (Hsp40) homolog, subfamily B, member 4) and SLIT2 (slit homologue 2) might function as tumor-suppressors, and the up-regulated KIT (v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog) may function as an oncogene.