First Author | Yu CI | Year | 2021 |
Journal | J Exp Med | Volume | 218 |
Issue | 6 | PubMed ID | 33857287 |
Mgi Jnum | J:347556 | Mgi Id | MGI:6724839 |
Doi | 10.1084/jem.20182163 | Citation | Yu CI, et al. (2021) Human KIT+ myeloid cells facilitate visceral metastasis by melanoma. J Exp Med 218(6) |
abstractText | Metastasis of melanoma significantly worsens prognosis; thus, therapeutic interventions that prevent metastasis could improve patient outcomes. Here, we show using humanized mice that colonization of distant visceral organs with melanoma is dependent upon a human CD33+CD11b+CD117+ progenitor cell subset comprising <4% of the human CD45+ leukocytes. Metastatic tumor-infiltrating CD33+ cells from patients and humanized (h)NSG-SGM3 mice showed converging transcriptional profiles. Single-cell RNA-seq analysis identified a gene signature of a KIT/CD117-expressing CD33+ subset that correlated with decreased overall survival in a TCGA melanoma cohort. Thus, human CD33+CD11b+CD117+ myeloid cells represent a novel candidate biomarker as well as a therapeutic target for metastatic melanoma. |