In vitro culture of murine megakaryocytes from fetal liver-derived hematopoietic stem cells.

In vitro culture of murine megakaryocytes from fetal liver-derived hematopoietic stem cells.
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DOI:
10.1080/09537104.2018.1492107
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发表时间:
2018-09
期刊:
影响因子:
3.3
通讯作者:
Machlus KR
Machlus KR
中科院分区:
医学3区
文献类型:
--
作者:
Vijey P;Posorske B;Machlus KR

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巨核细胞(MK)是专门的前体细胞,致力于产生和增殖血小板。在细胞骨架驱动的过程中,成熟的mk通过释放薄的细胞质延伸物(称为原血小板)到窦状动脉中产生血小板。由于这一过程的知识差距和临床对非供体血小板来源的需求不断增加,研究人员正在成功地开发人工培养系统来重建血小板生物发生的环境。然而,当前方法的缺点是干细胞富集过程复杂,生长期长,MK产量低,前血小板产量差。我们提出了一种简单、可靠的原代MK培养方法,利用妊娠小鼠的胎儿肝脏。我们的技术将膨胀时间缩短至4天,每个肝脏产生约15,000-20,000 mk。这些mk中约有20-50%产生结构致密、高质量的原血小板。在这篇综述中,我们概述了MK培养和分离的方法。
Megakaryocytes (MK) are specialized precursor cells committed to producing and proliferating platelets. In a cytoskeletal-driven process, mature MKs generate platelets by releasing thin cytoplasmic extensions, named proplatelets, into the sinusoids. Due to knowledge gaps in this process and mounting clinical demand for non-donor based platelet sources, investigators are successfully developing artificial culture systems to recreate the environment of platelet biogenesis. Nevertheless, drawbacks in current methods entail elaborate procedures for stem cell enrichment, extensive growth periods, low MK yield, and poor proplatelet production. We propose a simple, robust method of primary MK culture that utilizes fetal livers from pregnant mice. Our technique reduces expansion time to 4 days, and generates ~15,000–20,000 MKs per liver. Approximately 20–50% of these MKs produce structurally dense, high quality proplatelets. In this review, we outline our method of MK culture and isolation.
DOI: 10.1083/jcb.201304054
发表时间: 2013-06-10
期刊: The Journal of cell biology
影响因子: --
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