Nuclear interacting SET domain protein 1 inactivation impairs GATA1-regulated erythroid differentiation and causes erythroleukemia

Nat Commun. 2020 Jun 12;11(1):2807. doi: 10.1038/s41467-020-16179-8.

Abstract

The nuclear receptor binding SET domain protein 1 (NSD1) is recurrently mutated in human cancers including acute leukemia. We show that NSD1 knockdown alters erythroid clonogenic growth of human CD34+ hematopoietic cells. Ablation of Nsd1 in the hematopoietic system of mice induces a transplantable erythroleukemia. In vitro differentiation of Nsd1-/- erythroblasts is majorly impaired despite abundant expression of GATA1, the transcriptional master regulator of erythropoiesis, and associated with an impaired activation of GATA1-induced targets. Retroviral expression of wildtype NSD1, but not a catalytically-inactive NSD1N1918Q SET-domain mutant induces terminal maturation of Nsd1-/- erythroblasts. Despite similar GATA1 protein levels, exogenous NSD1 but not NSDN1918Q significantly increases the occupancy of GATA1 at target genes and their expression. Notably, exogenous NSD1 reduces the association of GATA1 with the co-repressor SKI, and knockdown of SKI induces differentiation of Nsd1-/- erythroblasts. Collectively, we identify the NSD1 methyltransferase as a regulator of GATA1-controlled erythroid differentiation and leukemogenesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Animals
  • Antigens, CD / metabolism
  • Antigens, CD34 / metabolism
  • Cell Differentiation*
  • Cell Line, Tumor
  • Cell Lineage
  • Chromatin / metabolism
  • DNA-Binding Proteins / metabolism
  • Erythroblasts / metabolism
  • Erythroid Cells / metabolism*
  • Erythroid Cells / pathology*
  • GATA1 Transcription Factor / genetics
  • GATA1 Transcription Factor / metabolism*
  • Gene Expression Regulation, Leukemic
  • Gene Knockdown Techniques
  • Hematopoiesis
  • Histone-Lysine N-Methyltransferase / genetics
  • Histone-Lysine N-Methyltransferase / metabolism*
  • Humans
  • Kaplan-Meier Estimate
  • Leukemia, Erythroblastic, Acute / genetics
  • Leukemia, Erythroblastic, Acute / metabolism*
  • Leukemia, Erythroblastic, Acute / pathology*
  • Male
  • Mice
  • Protein Binding
  • Proto-Oncogene Proteins / metabolism
  • Proto-Oncogene Proteins c-kit / metabolism
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Receptors, Transferrin / metabolism

Substances

  • Antigens, CD
  • Antigens, CD34
  • CD71 antigen
  • Chromatin
  • DNA-Binding Proteins
  • GATA1 Transcription Factor
  • Proto-Oncogene Proteins
  • RNA, Messenger
  • Receptors, Transferrin
  • SKI protein, human
  • Histone-Lysine N-Methyltransferase
  • NSD1 protein, human
  • Nsd1 protein, mouse
  • Proto-Oncogene Proteins c-kit