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Slc20a1b is essential for hematopoietic stem/progenitor cell expansion in zebrafish

ABSTRACT: Slc20a1b is essential for hematopoietic stem/progenitor cell expansion in zebrafish

PROVIDER: PRJNA694557 | ENA |

REPOSITORIES: ENA

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Slc20a1b is essential for hematopoietic stem/progenitor cell expansion in zebrafish

Project description:Hematopoietic stem and progenitor cells (HSPCs) are able to self-renew and can give rise to all blood lineages throughout their lifetime, yet the mechanisms regulating HSPC development have yet to be discovered. In this study, we characterized a hematopoiesis defective zebrafish mutant line named smu07, which was obtained from our previous forward genetic screening, and found the HSPC expansion deficiency in the mutant. Positional cloning identified that slc20a1b, which encodes a sodium phosphate cotransporter, contributed to the smu07 blood phenotype. Further analysis demonstrated that mutation of slc20a1b affects HSPC expansion through cell cycle arrest at G2/M phases in a cell-autonomous manner. Our study shows that slc20a1b is a vital regulator for HSPC proliferation in zebrafish early hematopoiesis and provides valuable insights into HSPC development.

2021-01-26 | GSE165415 | GEO

The splicing factor Prpf31 is essential for hematopoietic stem and progenitor cell expansion in zebrafish

Project description:The splicing factor Prpf31 is essential for hematopoietic stem and progenitor cell expansion in zebrafish

| PRJNA720429 | ENA

The splicing factor Prpf31 is required for hematopoietic stem and progenitor cell expansion during zebrafish embryogenesis

Project description:Pre-mRNA splicing is a precise regulated process, and is crucial for system development and homeostasis maintenance. Mutations in spliceosomal components have been found in various hematopoietic malignancies (HMs), and have been considered as oncogenic derivers of HMs. However, the role of spliceosomal components in normal and malignant hematopoiesis remain largely unknown. Pre-mRNA processing factor 31 (PRPF31) is a constitutive spliceosomal component, which mutations are associated with autosomal dominant retinitis pigmentosa. PRPF31 was found to be mutated in several HMs, but the function of PRPF31 in normal hematopoiesis has not been explored. In this study, we generated a prpf31 knockout zebrafish line, and discovered that prpf31 mutants exhibited severe defects in hematopoietic stem and progenitor cell (HSPC) expansion and its sequentially differentiated lineages. Immunofluorescence results showed that Prpf31 deficient HSPCs underwent malformed mitosis and M phase arrest during HSPC expansion. Transcriptome analysis and experimental validations revealed that Prpf31 deficiency extensively perturbed the alternative splicing of mitosis-related genes. Collectively, our findings elucidate a previously undescribed role for Prpf31 in HSPC expansion, through regulating the alternative splicing of mitosis-related genes.

2022-04-07 | GSE171661 | GEO

Mettl16 promotes hematopoietic stem and progenitor cell expansion in embryonic hematopoiesis [m6A-Seq]

Project description:The RNA N6-methyladenosine (m6A) modification has emerged as an essential regulator of vertebrate embryogenesis and malignancies. However, its functions and underlying molecular mechanisms in the expansion of hematopoietic stem and progenitor cells (HSPCs) during early embryonic development remain elusive. Here we show that Mettl16, an RNA methyltransferase identified recently, is specifically required for HSPC expansion during zebrafish early embryonic development in an m6A-dependent manner. In mettl16 deficient embryos, HSPCs exhibit defective proliferation capacity due to G0/G1 arrest. Mechanistically, HSPC proliferation is blocked by impaired methyltransferase function of Mettl16 in vivo. We identify cell cycle gene mybl2b as a novel direct m6A target of Mettl16, and Mettl16 deficiency destabilizes mybl2b mRNA, which is mediated by m6A reader Igf2bp1. Moreover, we revealed that the METTL16-m6A-MYBL2-IGF2BP1 signaling axis in G1/S progression is conserved in humans. Collectively, our findings demonstrate the critical function of m6A modification deposited by Mettl16 in HSPC expansion during early embryonic development.

2024-03-04 | GSE225136 | GEO

Mettl16 promotes hematopoietic stem and progenitor cell expansion in embryonic hematopoiesis [RNA-seq]

2024-03-04 | GSE225089 | GEO

Ageing-associated proteome and acetylome of hematopoietic progenitor cells

Project description:Ageing-associated proteome and acetylome of hematopoietic progenitor cells

2020-09-24 | PXD021651 | iProX

Hematopoietic Stem/Progenitor Cell Expansion Without Differentiation is Achieved in Zwitterionic Hydrogels

Project description:We report the application of Zwitterionic Hydrogel to enable differention-free expansion of human hematopoietic stem/progenitor cells (HSPC) derived from cord blood.

2017-04-17 | GSE85800 | GEO

SRSF10 is essential for progenitor spermatogonia expansion by regulating alternative splicing

Project description:Alternative splicing expands the proteome complexity and plays essential roles in tissue development and human diseases. However, how spermatogenesis is regulated by alternative splicing remains largely unknown. Here, using germ cell-specific knockout mouse model, we demonstrate that the splicing factor Srsf10 is essential for spermatogenesis and male fertility. Depletion of Srsf10 in germ cells had little effect on the formation of SSCs but impeded the expansion of progenitor spermatogonia, leading to the failure of spermatogonia differentiation and meiosis initiation. This was evidenced by the decreased expression of progenitor cell markers in bulk RNA-seq, and much less progenitor and differentiating spermatogonia in single-cell RNA-seq data. Furthermore, the expression of genes involved in cell cycle was abnormal in all subtypes of spermatogonia identified in single-cell RNA-seq data. Notably, using isolated spermatogonia, we found that Srsf10 depletion disturbed the alternative splicing of hundreds of genes, which were preferentially associated with cell cycle, mitotic cell cycle checkpoint and germ cell development, including Dazl, Kit, Ret, Sycp1, Nasp and Bora. These data suggest that SRSF10 is critical for the expansion of progenitor spermatogonia by regulating alternative splicing, expanding our understanding of the novel mechanism underlying spermatogenesis.

2022-11-07 | GSE190646 | GEO

Ints11 is essential for normal function of hematopoietic stem/progenitor cells

Project description:Ints11 is essential for normal function of hematopoietic stem/progenitor cells

| PRJNA668784 | ENA

ZBTB7A prevents RUNX1-RUNX1T1 dependent clonal expansion of human hematopoietic progenitor cells

Project description:ZBTB7A prevents RUNX1-RUNX1T1 dependent clonal expansion of human hematopoietic progenitor cells

| PRJNA589861 | ENA