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Mesa-Núñez C, Leon-Rico D, Aldea M, Damián C, Sanchez-Baltasar R, Sanchez R, Alberquilla O, Segovia JC, Bueren JA, Almarza E. The downregulated membrane expression of CD18 in CD34 + cells defines a primitive population of human hematopoietic stem cells. Stem Cell Res Ther 2020; 11:164. [PMID: 32345365 PMCID: PMC7189462 DOI: 10.1186/s13287-020-01672-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/18/2020] [Accepted: 04/08/2020] [Indexed: 01/06/2023] Open
Abstract
Background CD18 is the common beta subunit of β2 integrins, which are expressed on hematopoietic cells. β2 integrins are essential for cell adhesion and leukocyte trafficking. Methods Here we have analyzed the expression of CD18 in different subsets of human hematopoietic stem and progenitor cells (HSPCs) from cord blood (CB), bone marrow (BM), and mobilized peripheral blood (mPB) samples. CD34+ cells were classified into CD18high and CD18low/neg, and each of these populations was analyzed for the expression of HSPC markers, as well as for their clonogenity, quiescence state, and repopulating ability in immunodeficient mice. Results A downregulated membrane expression of CD18 was associated with a primitive hematopoietic stem cells (HSC) phenotype, as well as with a higher content of quiescent cells and multipotent colony-forming cells (CFCs). Although no differences in the short-term repopulating potential of CD18low/neg CD34+ and CD18high CD34+ cells were observed, CD18low/neg CD34+ cells were characterized by an enhanced long-term repopulating ability in NSG mice. Conclusions Overall, our results indicate that the downregulated membrane expression of CD18 characterizes a primitive population of human hematopoietic repopulating cells.
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Affiliation(s)
- Cristina Mesa-Núñez
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Diego Leon-Rico
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Montserrat Aldea
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Carlos Damián
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Raquel Sanchez-Baltasar
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Rebeca Sanchez
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Omaira Alberquilla
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - José Carlos Segovia
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Juan Antonio Bueren
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Elena Almarza
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain. .,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain.
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