The Gene Encoding the Hematopoietic Stem Cell Regulator CCN3/NOV is Under Direct Cytokine Control Through the Transcription Factors STAT5A/B
Overview
Authors
Affiliations
Cytokines control the biology of hematopoietic stem cells (HSCs) and progenitor cells in part through the transcription factors STAT5A/B. To investigate the target genes of STAT5A/B activated by cytokines in HSCs and progenitors, we performed microarray analyses using Lineage(-) Sca-1(+) c-Kit(+) (KSL) cells in the presence and absence of STAT5A/B. Stimulation with a mixture containing IL-3, IL-6, stem cell factor, thrombopoietin, and Flt3 ligand induced Ccn3/Nov mRNA over 100-fold in WT (control) but not Stat5a/b-null KSL cells. CCN3/NOV is a positive regulator of human HSC self-renewal and development of committed blood cells. Without stimulation, the Ccn3/Nov signal level was low in control KSL cells similar to Stat5a/b-null KSL cells. To determine which cytokine activates the Ccn3/Nov gene, we analyzed Lineage(-) c-Kit(+) (KL) and 32D cells using quantitative PCR and ChIP assays. Although stimulation with a mixture lacking IL-3 prevented the induction of Ccn3/Nov in control KL cells, IL-3 alone could induce Ccn3/Nov mRNA in control KL and 32D cells. ChIP assays using 32D cells revealed IL-3-induced binding of STAT5A/B to a γ-interferon-activated sequences site in the Ccn3/Nov gene promoter. This is the first report that Ccn3/Nov is directly induced by cytokines through STAT5A/B.
Zhang Q, Falques-Costa T, Pilheden M, Sturesson H, Ovlund T, Rissler V Hemasphere. 2024; 8(9):e70006.
PMID: 39329074 PMC: 11426354. DOI: 10.1002/hem3.70006.
YTHDF2 promotes multiple myeloma cell proliferation via STAT5A/MAP2K2/p-ERK axis.
Hua Z, Wei R, Guo M, Lin Z, Yu X, Li X Oncogene. 2022; 41(10):1482-1491.
PMID: 35075244 DOI: 10.1038/s41388-022-02191-3.
Leguit R, Raymakers R, Hebeda K, Goldschmeding R J Cell Commun Signal. 2021; 15(1):25-56.
PMID: 33428075 PMC: 7798015. DOI: 10.1007/s12079-020-00602-2.
The role of the CCN family of proteins in blood cancers.
Crawford L, Irvine A J Cell Commun Signal. 2016; 10(3):197-205.
PMID: 27485291 PMC: 5055499. DOI: 10.1007/s12079-016-0342-x.
Ishihara J, Umemoto T, Yamato M, Shiratsuchi Y, Takaki S, Petrich B Int J Hematol. 2014; 99(4):393-406.
PMID: 24563081 PMC: 4412171. DOI: 10.1007/s12185-014-1534-x.