Assays of megakaryocyte development: cytoplasm, storage granules, and demarcation membranes.

Methods Mol Biol

Département d'Hématologie, Institut Cochin Paris, Service d'hématologie et d'immunologie, Faculté de Médecine Paris, France.

Published: June 2005

Download full-text PDF

Source
http://dx.doi.org/10.1385/1-59259-782-3:323DOI Listing

Publication Analysis

Top Keywords

assays megakaryocyte
4
megakaryocyte development
4
development cytoplasm
4
cytoplasm storage
4
storage granules
4
granules demarcation
4
demarcation membranes
4
assays
1
development
1
cytoplasm
1

Similar Publications

[Clinical characteristics and prognosis of acute erythroleukemia in children].

Zhongguo Dang Dai Er Ke Za Zhi

January 2025

Department of Children's Hematology and Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.

Objectives: To investigate the clinical characteristics and prognosis of acute erythroleukemia (AEL) in children.

Methods: A retrospective analysis was conducted on the clinical data, treatment, and prognosis of 8 children with AEL treated at the First Affiliated Hospital of Zhengzhou University from January 2013 to December 2023.

Results: Among the 7 patients with complete bone marrow morphological analysis, 4 exhibited trilineage dysplasia, with a 100% incidence of erythroid dysplasia (7/7), a 71% incidence of myeloid dysplasia (5/7), and a 57% incidence of megakaryocytic dysplasia (4/7).

View Article and Find Full Text PDF

Acute inflammation induces acute megakaryopoiesis with impaired platelet production during fetal hematopoiesis.

Development

January 2025

Institute for Regenerative Medicine, State Key Laboratory of Cardiology and Medical Innovation Center, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.

Hematopoietic development is tightly regulated by various factors. The role of RNA m6A modification during fetal hematopoiesis, particularly in megakaryopoiesis, remains unclear. Here, we demonstrate that loss of m6A methyltransferase METTL3 induces formation of double-stranded RNAs (dsRNAs) and activates acute inflammation during fetal hematopoiesis.

View Article and Find Full Text PDF

Cytoskeletal remodeling and mitochondrial bioenergetics play important roles in thrombocytopoiesis and platelet function. Recently, α-actinin-1 mutations have been reported in patients with congenital macrothrombocytopenia. However, the role and underlying mechanism of α-actinin-1 in thrombocytopoiesis and platelet function remain elusive.

View Article and Find Full Text PDF

Platelet-like particles (PLPs), derived from megakaryocytic cell lines MEG-01 and K-562, are widely used as a surrogate to study platelet formation and function. We demonstrate by RNA-Seq that PLPs are transcriptionally distinct from platelets. Expression of key genes in signaling pathways promoting platelet activation/aggregation, such as the PI3K/AKT, protein kinase A, phospholipase C, and α-adrenergic and GP6 receptor pathways, was missing or under-expressed in PLPs.

View Article and Find Full Text PDF

Aging and chronic inflammation are associated with overabundant myeloid-primed multipotent progenitors (MPPs) amongst hematopoietic stem and progenitor cells (HSPCs). While HSC differentiation bias has been considered a primary cause of myeloid bias, whether it is sufficient has not been quantitatively evaluated. Here, we analyzed bone marrow data from the IκB- (Nfkbia+/-Nfkbib-/-Nfkbie-/-) mouse model of inflammation with elevated NFκB activity, which shows increased myeloid-biased MPPs.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!