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Regulation of Erythropoiesis 3.0

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Biology".

Deadline for manuscript submissions: closed (30 August 2022) | Viewed by 5422

Special Issue Editor


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Guest Editor
Department of Life Science, Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
Interests: transcriptional regulation; transcription factors; chromatin remodeling complexes; cell fate decision; erythropoiesis; cancer stem cells; anticancer drugs
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Special Issue Information

Dear Colleagues,

Approximately 84% of the cells in the human body are red blood cells. Erythropoiesis is the complex process that produces mature red blood cells (erythrocytes) from erythropoietic stem cells, and mature red blood cells in mammals uniquely lack a cell nucleus and most organelle, with some exceptions in some salamanders and fish. Genetic diseases, such as sickle cell anemia and hereditary persistence of fetal hemoglobin (HPFH) and erythroleukemia, have been studied as a model for gene expression control and for molecular genetic understanding and treatment development. However, although considerable advances in the understanding of erythropoiesis and hemoglobin switching have occurred, the fundamental molecular mechanism of the regulation of erythropoiesis and globin switching is still not understood

This Special Issue on the regulation of erythropoiesis will include a selection of original papers and reviews focused on genetic and cellular bases and molecular mechanisms of erythroid differentiation and globin switching, including epigenetic connections between the gene regulatory network and chromatin dynamics, cell signaling, recent progress in single cell genomics, and various new pathophysiologic mechanisms.

Prof. Dr. Chul Geun Kim
Guest Editor

Manuscript Submission Information

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Keywords

  • erythropoiesis
  • hemoglobin switching
  • gene regulatory network
  • epigenetics
  • chromatin dynamics
  • cell signaling
  • single cell genomics
  • pathophysiologic mechanisms

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Published Papers (2 papers)

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Research

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17 pages, 2642 KiB  
Article
LRF Promotes Indirectly Advantageous Chromatin Conformation via BGLT3-lncRNA Expression and Switch from Fetal to Adult Hemoglobin
by Vasiliki Chondrou, Athanasios-Nasir Shaukat, Georgios Psarias, Katerina Athanasopoulou, Evanthia Iliopoulou, Ariadne Damanaki, Constantinos Stathopoulos and Argyro Sgourou
Int. J. Mol. Sci. 2022, 23(13), 7025; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms23137025 - 24 Jun 2022
Cited by 3 | Viewed by 2362
Abstract
The hemoglobin switch from fetal (HbF) to adult (HbA) has been studied intensively as an essential model for gene expression regulation, but also as a beneficial therapeutic approach for β-hemoglobinopathies, towards the objective of reactivating HbF. The transcription factor LRF (Leukemia/lymphoma-related), encoded from [...] Read more.
The hemoglobin switch from fetal (HbF) to adult (HbA) has been studied intensively as an essential model for gene expression regulation, but also as a beneficial therapeutic approach for β-hemoglobinopathies, towards the objective of reactivating HbF. The transcription factor LRF (Leukemia/lymphoma-related), encoded from the ZBTB7A gene has been implicated in fetal hemoglobin silencing, though has a wide range of functions that have not been fully clarified. We thus established the LRF/ZBTB7A-overexpressing and ZBTB7A-knockdown K562 (human erythroleukemia cell line) clones to assess fetal vs. adult hemoglobin production pre- and post-induction. Transgenic K562 clones were further developed and studied under the influence of epigenetic chromatin regulators, such as DNA methyl transferase 3 (DNMT3) and Histone Deacetylase 1 (HDAC1), to evaluate LRF’s potential disturbance upon the aberrant epigenetic background and provide valuable information of the preferable epigenetic frame, in which LRF unfolds its action on the β-type globin’s expression. The ChIP-seq analysis demonstrated that LRF binds to γ-globin genes (HBG2/1) and apparently associates BCL11A for their silencing, but also during erythropoiesis induction, LRF binds the BGLT3 gene, promoting BGLT3-lncRNA production through the γ-δ intergenic region of β-type globin’s locus, triggering the transcriptional events from γ- to β-globin switch. Our findings are supported by an up-to-date looping model, which highlights chromatin alterations during erythropoiesis at late stages of gestation, to establish an “open” chromatin conformation across the γ-δ intergenic region and accomplish β-globin expression and hemoglobin switch. Full article
(This article belongs to the Special Issue Regulation of Erythropoiesis 3.0)
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Review

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26 pages, 2964 KiB  
Review
Erythroid Cell Research: 3D Chromatin, Transcription Factors and Beyond
by Charlotte Andrieu-Soler and Eric Soler
Int. J. Mol. Sci. 2022, 23(11), 6149; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms23116149 - 30 May 2022
Cited by 3 | Viewed by 2561
Abstract
Studies of the regulatory networks and signals controlling erythropoiesis have brought important insights in several research fields of biology and have been a rich source of discoveries with far-reaching implications beyond erythroid cells biology. The aim of this review is to highlight key [...] Read more.
Studies of the regulatory networks and signals controlling erythropoiesis have brought important insights in several research fields of biology and have been a rich source of discoveries with far-reaching implications beyond erythroid cells biology. The aim of this review is to highlight key recent discoveries and show how studies of erythroid cells bring forward novel concepts and refine current models related to genome and 3D chromatin organization, signaling and disease, with broad interest in life sciences. Full article
(This article belongs to the Special Issue Regulation of Erythropoiesis 3.0)
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