Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro

Hydroxyurea (HU) is an antineoplastic agent that functions as an antimetabolite compound by inhibiting the ribonucleotide reductase. HU acts mainly as a cytostatic drug that through DNA replication stress may trigger a premature senescence-like cell phenotype, though its influence on bone marrow-der...

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Autores principales: Sunčica Kapor, Milica Vukotić, Tijana Subotički, Dragoslava Đikić, Olivera Mitrović Ajtić, Milica Radojković, Vladan P. Čokić, Juan F. Santibanez
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/12042089d7074df19c9805d4a519fb13
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spelling oai:doaj.org-article:12042089d7074df19c9805d4a519fb132021-11-25T18:06:42ZHydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro10.3390/jpm111110482075-4426https://doaj.org/article/12042089d7074df19c9805d4a519fb132021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4426/11/11/1048https://doaj.org/toc/2075-4426Hydroxyurea (HU) is an antineoplastic agent that functions as an antimetabolite compound by inhibiting the ribonucleotide reductase. HU acts mainly as a cytostatic drug that through DNA replication stress may trigger a premature senescence-like cell phenotype, though its influence on bone marrow-derived mesenchymal stem/stromal cell (BMMSC) functions has not elucidated yet. Our results indicate that HU inhibits the growth of human BMMSC alongside senescence-like changes in both morphology and replicative potential, provokes cell cycle arrest at the S phase without affecting cellular viability and induces the expression of senescence-associated β-galactosidase and p16INK4. Moreover, HU-induced senescent BMMSC, although they did not change MSC markers expression, exhibited reduced capacity osteogenic and adipogenic differentiation. Conversely, HU treatment increased immunoregulatory functions of BMMSC compared with untreated cells and determined by T-cell proliferation. Interestingly, HU did not influence the capacity of BMMSC to induce monocytic myeloid-derived suppressor cells. Thus, these results suggest that HU improves the BMMSC functions on the T-cell inhibition and preserves their interaction with myeloid cell compartment. Mechanistically, BMMSC under HU treatment displayed a downregulation of mTOR and p38 MAPK signaling that may explain the reduced cell differentiation and increased immunomodulation activities. Together, the results obtained in this investigation suggest that HU by inducing senescence-like phenotype of BMMSC influences their cellular differentiation and immunoregulatory functions.Sunčica KaporMilica VukotićTijana SubotičkiDragoslava ĐikićOlivera Mitrović AjtićMilica RadojkovićVladan P. ČokićJuan F. SantibanezMDPI AGarticlehydroxyureabone marrow mesenchymal stem cellssenescencedifferentiationimmunosuppressionMedicineRENJournal of Personalized Medicine, Vol 11, Iss 1048, p 1048 (2021)
institution DOAJ
collection DOAJ
language EN
topic hydroxyurea
bone marrow mesenchymal stem cells
senescence
differentiation
immunosuppression
Medicine
R
spellingShingle hydroxyurea
bone marrow mesenchymal stem cells
senescence
differentiation
immunosuppression
Medicine
R
Sunčica Kapor
Milica Vukotić
Tijana Subotički
Dragoslava Đikić
Olivera Mitrović Ajtić
Milica Radojković
Vladan P. Čokić
Juan F. Santibanez
Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
description Hydroxyurea (HU) is an antineoplastic agent that functions as an antimetabolite compound by inhibiting the ribonucleotide reductase. HU acts mainly as a cytostatic drug that through DNA replication stress may trigger a premature senescence-like cell phenotype, though its influence on bone marrow-derived mesenchymal stem/stromal cell (BMMSC) functions has not elucidated yet. Our results indicate that HU inhibits the growth of human BMMSC alongside senescence-like changes in both morphology and replicative potential, provokes cell cycle arrest at the S phase without affecting cellular viability and induces the expression of senescence-associated β-galactosidase and p16INK4. Moreover, HU-induced senescent BMMSC, although they did not change MSC markers expression, exhibited reduced capacity osteogenic and adipogenic differentiation. Conversely, HU treatment increased immunoregulatory functions of BMMSC compared with untreated cells and determined by T-cell proliferation. Interestingly, HU did not influence the capacity of BMMSC to induce monocytic myeloid-derived suppressor cells. Thus, these results suggest that HU improves the BMMSC functions on the T-cell inhibition and preserves their interaction with myeloid cell compartment. Mechanistically, BMMSC under HU treatment displayed a downregulation of mTOR and p38 MAPK signaling that may explain the reduced cell differentiation and increased immunomodulation activities. Together, the results obtained in this investigation suggest that HU by inducing senescence-like phenotype of BMMSC influences their cellular differentiation and immunoregulatory functions.
format article
author Sunčica Kapor
Milica Vukotić
Tijana Subotički
Dragoslava Đikić
Olivera Mitrović Ajtić
Milica Radojković
Vladan P. Čokić
Juan F. Santibanez
author_facet Sunčica Kapor
Milica Vukotić
Tijana Subotički
Dragoslava Đikić
Olivera Mitrović Ajtić
Milica Radojković
Vladan P. Čokić
Juan F. Santibanez
author_sort Sunčica Kapor
title Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
title_short Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
title_full Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
title_fullStr Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
title_full_unstemmed Hydroxyurea Induces Bone Marrow Mesenchymal Stromal Cells Senescence and Modifies Cell Functionality In Vitro
title_sort hydroxyurea induces bone marrow mesenchymal stromal cells senescence and modifies cell functionality in vitro
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/12042089d7074df19c9805d4a519fb13
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