Changes in megakaryopoiesis over ontogeny and their implications in health and disease

A growing body of research has made it increasingly clear that there are substantial biological differences between fetal/neonatal and adult megakaryopoiesis. Over the last decade, studies revealed a developmentally unique uncoupling of proliferation, polyploidization, and cytoplasmic maturation in...

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Main Authors: Patricia Davenport, Zhi-Jian Liu, Martha Sola-Visner
Format: Article
Language:English
Published: Taylor & Francis Group 2020-08-01
Series:Platelets
Subjects:
Online Access:http://dx.doi.org/10.1080/09537104.2020.1742879
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author Patricia Davenport
Zhi-Jian Liu
Martha Sola-Visner
author_facet Patricia Davenport
Zhi-Jian Liu
Martha Sola-Visner
author_sort Patricia Davenport
collection DOAJ
description A growing body of research has made it increasingly clear that there are substantial biological differences between fetal/neonatal and adult megakaryopoiesis. Over the last decade, studies revealed a developmentally unique uncoupling of proliferation, polyploidization, and cytoplasmic maturation in neonatal MKs that results in the production of large numbers of small, low ploidy, but mature MKs during this period of development, and identified substantial molecular differences between fetal/neonatal and adult MKs. This review will summarize our current knowledge on the developmental differences between fetal/neonatal and adult MKs, and recent advances in our understanding of the underlying molecular mechanisms, including newly described developmentally regulated pathways and miRNAs. We will also discuss the implications of these findings on the ways MKs interact with the environment, the response of neonates to thrombocytopenia, the pathogenesis of Down syndrome-transient myeloproliferative disorder (TMD), and the developmental stage specific-manifestations of congenital amegakaryocytic thrombocytopenia.
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spelling doaj.art-e14cfd60cf5c423d8ca649aca53cc48c2023-09-15T10:38:07ZengTaylor & Francis GroupPlatelets0953-71041369-16352020-08-0131669269910.1080/09537104.2020.17428791742879Changes in megakaryopoiesis over ontogeny and their implications in health and diseasePatricia Davenport0Zhi-Jian Liu1Martha Sola-Visner2Boston Children’s Hospital and Harvard Medical SchoolBoston Children’s Hospital and Harvard Medical SchoolBoston Children’s Hospital and Harvard Medical SchoolA growing body of research has made it increasingly clear that there are substantial biological differences between fetal/neonatal and adult megakaryopoiesis. Over the last decade, studies revealed a developmentally unique uncoupling of proliferation, polyploidization, and cytoplasmic maturation in neonatal MKs that results in the production of large numbers of small, low ploidy, but mature MKs during this period of development, and identified substantial molecular differences between fetal/neonatal and adult MKs. This review will summarize our current knowledge on the developmental differences between fetal/neonatal and adult MKs, and recent advances in our understanding of the underlying molecular mechanisms, including newly described developmentally regulated pathways and miRNAs. We will also discuss the implications of these findings on the ways MKs interact with the environment, the response of neonates to thrombocytopenia, the pathogenesis of Down syndrome-transient myeloproliferative disorder (TMD), and the developmental stage specific-manifestations of congenital amegakaryocytic thrombocytopenia.http://dx.doi.org/10.1080/09537104.2020.1742879fetusmegakaryocyteneonatethrombopoietin
spellingShingle Patricia Davenport
Zhi-Jian Liu
Martha Sola-Visner
Changes in megakaryopoiesis over ontogeny and their implications in health and disease
Platelets
fetus
megakaryocyte
neonate
thrombopoietin
title Changes in megakaryopoiesis over ontogeny and their implications in health and disease
title_full Changes in megakaryopoiesis over ontogeny and their implications in health and disease
title_fullStr Changes in megakaryopoiesis over ontogeny and their implications in health and disease
title_full_unstemmed Changes in megakaryopoiesis over ontogeny and their implications in health and disease
title_short Changes in megakaryopoiesis over ontogeny and their implications in health and disease
title_sort changes in megakaryopoiesis over ontogeny and their implications in health and disease
topic fetus
megakaryocyte
neonate
thrombopoietin
url http://dx.doi.org/10.1080/09537104.2020.1742879
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