In more detail, SIGLEC17P expression could be used by Tregs to circulate among all tissues; CD33, PCDH1, JAM2, CDHR3, and ITGA3 would orchestrate migration/retention in NI TDLNs; CADM1 in I TDLNS; and CEACAM6 in tumor. The gene discussed is PCDH1; the disease is neoplasm.