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RIO-kinase 2 is essential for hematopoiesis.
Messling, Jan-Erik; Peña-Rømer, Isabel; Moroni, Ann Sophie; Bruestl, Sarah; Helin, Kristian.
Afiliación
  • Messling JE; Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
  • Peña-Rømer I; The Institute of Cancer Research, London, United Kingdom.
  • Moroni AS; Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
  • Bruestl S; The Institute of Cancer Research, London, United Kingdom.
  • Helin K; The Institute of Cancer Research, London, United Kingdom.
PLoS One ; 19(4): e0300623, 2024.
Article en En | MEDLINE | ID: mdl-38564577
ABSTRACT
Regulation of protein synthesis is a key factor in hematopoietic stem cell maintenance and differentiation. Rio-kinase 2 (RIOK2) is a ribosome biogenesis factor that has recently been described an important regulator of human blood cell development. Additionally, we have previously identified RIOK2 as a regulator of protein synthesis and a potential target for the treatment of acute myeloid leukemia (AML). However, its functional relevance in several organ systems, including normal hematopoiesis, is not well understood. Here, we investigate the consequences of RIOK2 loss on normal hematopoiesis using two different conditional knockout mouse models. Using competitive and non-competitive bone marrow transplantations, we demonstrate that RIOK2 is essential for the differentiation of hematopoietic stem and progenitor cells (HSPCs) as well as for the maintenance of fully differentiated blood cells in vivo as well as in vitro. Loss of RIOK2 leads to rapid death in full-body knockout mice as well as mice with RIOK2 loss specific to the hematopoietic system. Taken together, our results indicate that regulation of protein synthesis and ribosome biogenesis by RIOK2 is essential for the function of the hematopoietic system.
Asunto(s)

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Células Madre Hematopoyéticas / Leucemia Mieloide Aguda Límite: Animals / Humans Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Células Madre Hematopoyéticas / Leucemia Mieloide Aguda Límite: Animals / Humans Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca