Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population

Abstract The aim of the present study was to elucidate the utility of Mesenchymal Stem Cell Antigen-1 (MSCA1) (tissue nonspecific alkaline phosphatase (TNAP)) as a potential marker for purification of human chondrocyte fraction with less heterogenous phenotype from those with osteogenic properties....

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Main Authors: Ausra Unguryte, Ilona Uzieliene, Edvardas Bagdonas, Aiste Zentelyte, Narūnas Porvaneckas, Eiva Bernotiene
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-91303-6
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author Ausra Unguryte
Ilona Uzieliene
Edvardas Bagdonas
Aiste Zentelyte
Narūnas Porvaneckas
Eiva Bernotiene
author_facet Ausra Unguryte
Ilona Uzieliene
Edvardas Bagdonas
Aiste Zentelyte
Narūnas Porvaneckas
Eiva Bernotiene
author_sort Ausra Unguryte
collection DOAJ
description Abstract The aim of the present study was to elucidate the utility of Mesenchymal Stem Cell Antigen-1 (MSCA1) (tissue nonspecific alkaline phosphatase (TNAP)) as a potential marker for purification of human chondrocyte fraction with less heterogenous phenotype from those with osteogenic properties. Chondrocytes were isolated from human osteoarthritis cartilage and sorted according to MSCA1 expression by MACS (Magnetic-activated cell sorting) and FACS (Fluorescence-activated cell sorting) techniques (MSCA1high and MSCA1low), analyzed for gene expression, osteogenic and adipogenic differentiation capacities, and were compared between the sorted populations. Gene expression analyses revealed upregulation in osteogenic genes (ALPL and RUNX2) and significantly lower expression of chondrocyte-specific genes (COL2A1, SOX9 and MIA) in sorted MSCA1high, as compared to MSCA1low. Expression of Aldehyde dehydrogenase isoform gene ALDH1A2 was enriched in MSCA1low chondrocytes. Stronger osteogenic differentiation was observed in MSCA1high, as compared to the unsorted cells, and particularly, MSCA1low chondrocytes. Expression of MSCA1 in human chondrocytes is biased in their commitment to the osteogenic lineage. We demonstrate that MSCA1 can be used as a marker for separation of cells, prone to differentiate towards osteogenic lineage from those, retaining chondrogenic phenotype. This may allow enrichment of a chondrogenic population and separation from undesirable osteoprogenitors.
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spelling doaj-art-40bfd83f306c4e9a9a58bccb435808492025-08-20T02:59:22ZengNature PortfolioScientific Reports2045-23222025-03-0115111310.1038/s41598-025-91303-6Potential of MSCA1 for isolating osteogenic cells in a chondrocyte populationAusra Unguryte0Ilona Uzieliene1Edvardas Bagdonas2Aiste Zentelyte3Narūnas Porvaneckas4Eiva Bernotiene5Department of Regenerative Medicine, Innovative medicine centreDepartment of Regenerative Medicine, Innovative medicine centreDepartment of Regenerative Medicine, Innovative medicine centreDepartment of Regenerative Medicine, Innovative medicine centreClinic of Rheumatology, Orthopaedics Traumatology and Reconstructive Surgery, Faculty of Medicine, Vilnius UniversityDepartment of Regenerative Medicine, Innovative medicine centreAbstract The aim of the present study was to elucidate the utility of Mesenchymal Stem Cell Antigen-1 (MSCA1) (tissue nonspecific alkaline phosphatase (TNAP)) as a potential marker for purification of human chondrocyte fraction with less heterogenous phenotype from those with osteogenic properties. Chondrocytes were isolated from human osteoarthritis cartilage and sorted according to MSCA1 expression by MACS (Magnetic-activated cell sorting) and FACS (Fluorescence-activated cell sorting) techniques (MSCA1high and MSCA1low), analyzed for gene expression, osteogenic and adipogenic differentiation capacities, and were compared between the sorted populations. Gene expression analyses revealed upregulation in osteogenic genes (ALPL and RUNX2) and significantly lower expression of chondrocyte-specific genes (COL2A1, SOX9 and MIA) in sorted MSCA1high, as compared to MSCA1low. Expression of Aldehyde dehydrogenase isoform gene ALDH1A2 was enriched in MSCA1low chondrocytes. Stronger osteogenic differentiation was observed in MSCA1high, as compared to the unsorted cells, and particularly, MSCA1low chondrocytes. Expression of MSCA1 in human chondrocytes is biased in their commitment to the osteogenic lineage. We demonstrate that MSCA1 can be used as a marker for separation of cells, prone to differentiate towards osteogenic lineage from those, retaining chondrogenic phenotype. This may allow enrichment of a chondrogenic population and separation from undesirable osteoprogenitors.https://doi.org/10.1038/s41598-025-91303-6MSCA1/TNAPOsteoarthritisChondrocytesMACSOsteogenic differentiation
spellingShingle Ausra Unguryte
Ilona Uzieliene
Edvardas Bagdonas
Aiste Zentelyte
Narūnas Porvaneckas
Eiva Bernotiene
Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
Scientific Reports
MSCA1/TNAP
Osteoarthritis
Chondrocytes
MACS
Osteogenic differentiation
title Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
title_full Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
title_fullStr Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
title_full_unstemmed Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
title_short Potential of MSCA1 for isolating osteogenic cells in a chondrocyte population
title_sort potential of msca1 for isolating osteogenic cells in a chondrocyte population
topic MSCA1/TNAP
Osteoarthritis
Chondrocytes
MACS
Osteogenic differentiation
url https://doi.org/10.1038/s41598-025-91303-6
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