Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration

Megakaryocytes (MKs), the largest and rarest cells of the hematopoietic system, differentiate by increasing their size, DNA and cytoplasmic contents during maturation in order to release high numbers of blood platelets into the circulation. The gold-standard to study these complex cells is the isola...

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Main Authors: Markus Spindler, Kristina Mott, Harald Schulze, Markus Bender
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Platelets
Subjects:
Online Access:http://dx.doi.org/10.1080/09537104.2023.2192289
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author Markus Spindler
Kristina Mott
Harald Schulze
Markus Bender
author_facet Markus Spindler
Kristina Mott
Harald Schulze
Markus Bender
author_sort Markus Spindler
collection DOAJ
description Megakaryocytes (MKs), the largest and rarest cells of the hematopoietic system, differentiate by increasing their size, DNA and cytoplasmic contents during maturation in order to release high numbers of blood platelets into the circulation. The gold-standard to study these complex cells is the isolation of primary MKs from the native bone marrow (BM). This is typically achieved by using fluorescence- or magnetic-activated cell sorting. However, both methods are time-consuming and require a trained experimenter who is able to operate highly priced special equipment. Here, we demonstrate a simple and rapid alternative method to enrich mature MKs (≥16 N) from murine adult BM by size exclusion. The purity of the MK fraction reached 70–80% after isolation (100- to 250-fold enrichment). Reanalysis of isolated MKs by confocal microscopy revealed the expected expression of lineage-defining MK- and platelet-specific surface receptors, including CD42a/b/d and CD41/CD61. In addition, we detected a clear enrichment of MK-specific proteins/transcripts like $${\rm{\beta }}$$1-tubulin, $${\rm{\beta }}$$3-integrin, GPVI and GPIb$${\rm{\alpha }}$$, whereas the neutrophil marker Ly6G was only detectable in the BM sample. Taken together, we demonstrate that the protocol proposed in this Technical Report is a compatible addition to established isolation methods.
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spelling doaj.art-c82f2bb70f834c359ca2a9514d7108462023-09-15T10:38:11ZengTaylor & Francis GroupPlatelets0953-71041369-16352023-12-0134110.1080/09537104.2023.21922892192289Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtrationMarkus Spindler0Kristina Mott1Harald Schulze2Markus Bender3University Hospital WürzburgUniversity Hospital WürzburgUniversity Hospital WürzburgUniversity Hospital WürzburgMegakaryocytes (MKs), the largest and rarest cells of the hematopoietic system, differentiate by increasing their size, DNA and cytoplasmic contents during maturation in order to release high numbers of blood platelets into the circulation. The gold-standard to study these complex cells is the isolation of primary MKs from the native bone marrow (BM). This is typically achieved by using fluorescence- or magnetic-activated cell sorting. However, both methods are time-consuming and require a trained experimenter who is able to operate highly priced special equipment. Here, we demonstrate a simple and rapid alternative method to enrich mature MKs (≥16 N) from murine adult BM by size exclusion. The purity of the MK fraction reached 70–80% after isolation (100- to 250-fold enrichment). Reanalysis of isolated MKs by confocal microscopy revealed the expected expression of lineage-defining MK- and platelet-specific surface receptors, including CD42a/b/d and CD41/CD61. In addition, we detected a clear enrichment of MK-specific proteins/transcripts like $${\rm{\beta }}$$1-tubulin, $${\rm{\beta }}$$3-integrin, GPVI and GPIb$${\rm{\alpha }}$$, whereas the neutrophil marker Ly6G was only detectable in the BM sample. Taken together, we demonstrate that the protocol proposed in this Technical Report is a compatible addition to established isolation methods.http://dx.doi.org/10.1080/09537104.2023.2192289bone marrowmegakaryocyte enrichmentmegakaryocyte isolationmurineprimary,protocol
spellingShingle Markus Spindler
Kristina Mott
Harald Schulze
Markus Bender
Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
Platelets
bone marrow
megakaryocyte enrichment
megakaryocyte isolation
murine
primary,
protocol
title Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
title_full Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
title_fullStr Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
title_full_unstemmed Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
title_short Rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
title_sort rapid isolation of mature murine primary megakaryocytes by size exclusion via filtration
topic bone marrow
megakaryocyte enrichment
megakaryocyte isolation
murine
primary,
protocol
url http://dx.doi.org/10.1080/09537104.2023.2192289
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AT kristinamott rapidisolationofmaturemurineprimarymegakaryocytesbysizeexclusionviafiltration
AT haraldschulze rapidisolationofmaturemurineprimarymegakaryocytesbysizeexclusionviafiltration
AT markusbender rapidisolationofmaturemurineprimarymegakaryocytesbysizeexclusionviafiltration