|
1
|
Niemann T, Joneleit J, Storm J, Nacke T, Wähnert D, Kaltschmidt C, Vordemvenne T, Kaltschmidt B. Analyzing Sex-Specific Dimorphism in Human Skeletal Stem Cells. Cells 2023; 12:2683. [PMID: 38067111 PMCID: PMC10705359 DOI: 10.3390/cells12232683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
Sex-related differences are a current topic in contemporary science. In addition to hormonal regulation, cell-autonomous mechanisms are important in bone homeostasis and regeneration. In this study, human skeletal stem cells (SSCs) from female and male adults were cultured and analyzed with immunological assays and osteogenic differentiation assessments. Female SSCs exhibited a mean doubling time of 100.6 h, whereas male SSCs displayed a mean doubling time of 168.0 h. Immunophenotyping revealed the expression of the stem cell markers Nestin, CD133, and CD164, accompanied by the neural-crest marker SOX9. Furthermore, multiparameter flow cytometric analyses revealed a substantial population of multipotent SSCs, comprising up to 80% in both sexes. An analysis of the osteogenic differentiation potential demonstrated a strong mineralization in both male and female SSCs under physiological conditions. Recognizing the prevailing association of bone diseases with inflammatory processes, we also analyzed the osteogenic potential of SSCs from both sexes under pro-inflammatory conditions. Upon TNF-α and IL-1β treatment, we observed no sexual dimorphism on osteogenesis. In summary, we demonstrated the successful isolation and characterization of SSCs capable of rapid osteogenic differentiation. Taken together, in vitro cultured SSCs might be a suitable model to study sexual dimorphisms and develop drugs for degenerative bone diseases.
Collapse
Affiliation(s)
- Tarek Niemann
- Molecular Neurobiology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany; (J.J.); (T.N.); (B.K.)
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
| | - Jonas Joneleit
- Molecular Neurobiology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany; (J.J.); (T.N.); (B.K.)
| | - Jonathan Storm
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
- Department of Cell Biology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Tom Nacke
- Molecular Neurobiology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany; (J.J.); (T.N.); (B.K.)
| | - Dirk Wähnert
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
- Department of Trauma and Orthopedic Surgery, Protestant Hospital of Bethel Foundation, Campus Bielefeld-Bethel, University Hospital OWL of Bielefeld University, Burgsteig 13, 33617 Bielefeld, Germany
| | - Christian Kaltschmidt
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
- Department of Cell Biology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Thomas Vordemvenne
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
- Department of Trauma and Orthopedic Surgery, Protestant Hospital of Bethel Foundation, Campus Bielefeld-Bethel, University Hospital OWL of Bielefeld University, Burgsteig 13, 33617 Bielefeld, Germany
| | - Barbara Kaltschmidt
- Molecular Neurobiology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany; (J.J.); (T.N.); (B.K.)
- Forschungsverbund BioMedizin Bielefeld FBMB e.V., 33615 Bielefeld, Germany; (J.S.); (D.W.); (C.K.); (T.V.)
- Department of Cell Biology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| |
Collapse
|