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Qiao X, Yang Y, Zhao Y, Wu X, Zhang L, Cai X, Ji J, Boström KI, Yao Y. Aurora Kinase A Regulates Cell Transitions in Glucocorticoid-Induced Bone Loss. Cells 2023; 12:2434. [PMID: 37887278 PMCID: PMC10605378 DOI: 10.3390/cells12202434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/22/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
Glucocorticoid-induced bone loss is a severe and toxic effect of long-term therapy with glucocorticoids, which are currently prescribed for millions of people worldwide. Previous studies have uncovered that glucocorticoids reciprocally converted osteoblast lineage cells into endothelial-like cells to cause bone loss and showed that the modulations of Foxc2 and Osterix were the causative factors that drove this harmful transition of osteoblast lineage cells. Here, we find that the inhibition of aurora kinase A halts this transition and prevents glucocorticoid-induced bone loss. We find that aurora A interacts with the glucocorticoid receptor and show that this interaction is required for glucocorticoids to modulate Foxc2 and Osterix. Together, we identify a new potential approach to counteracting unwanted transitions of osteoblast lineage cells in glucocorticoid treatment and may provide a novel strategy for ameliorating glucocorticoid-induced bone loss.
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Affiliation(s)
- Xiaojing Qiao
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Yang Yang
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Yan Zhao
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Xiuju Wu
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Li Zhang
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Xinjiang Cai
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Jaden Ji
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
| | - Kristina I. Boström
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
- The Molecular Biology Institute at UCLA, Los Angeles, CA 90095-1570, USA
| | - Yucheng Yao
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1679, USA
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Qiao X, Wu X, Zhao Y, Yang Y, Zhang L, Cai X, Ma JA, Ji J, Lyons K, Boström KI, Yao Y. Cell Transitions Contribute to Glucocorticoid-Induced Bone Loss. Cells 2023; 12:1810. [PMID: 37508475 PMCID: PMC10377921 DOI: 10.3390/cells12141810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/26/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Glucocorticoid-induced bone loss is a toxic effect of long-term therapy with glucocorticoids resulting in a significant increase in the risk of fracture. Here, we find that glucocorticoids reciprocally convert osteoblast-lineage cells into endothelial-like cells. This is confirmed by lineage tracing showing the induction of endothelial markers in osteoblast-lineage cells following glucocorticoid treatment. Functional studies show that osteoblast-lineage cells isolated from glucocorticoid-treated mice lose their capacity for bone formation but simultaneously improve vascular repair. We find that the glucocorticoid receptor directly targets Foxc2 and Osterix, and the modulations of Foxc2 and Osterix drive the transition of osteoblast-lineage cells to endothelial-like cells. Together, the results suggest that glucocorticoids suppress osteogenic capacity and cause bone loss at least in part through previously unrecognized osteoblast-endothelial transitions.
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Affiliation(s)
- Xiaojing Qiao
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Xiuju Wu
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Yan Zhao
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Yang Yang
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Li Zhang
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Xinjiang Cai
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Jocelyn A Ma
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Jaden Ji
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Karen Lyons
- Department of Molecular, Cell & Developmental Biology at UCLA, Los Angeles, CA 90095, USA
| | - Kristina I Boström
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
- The Molecular Biology Institute at UCLA, Los Angeles, CA 90095, USA
| | - Yucheng Yao
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
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Robert AW, Marcon BH, Angulski ABB, Martins SDT, Leitolis A, Stimamiglio MA, Senegaglia AC, Correa A, Alves LR. Selective Loading and Variations in the miRNA Profile of Extracellular Vesicles from Endothelial-like Cells Cultivated under Normoxia and Hypoxia. Int J Mol Sci 2022; 23:ijms231710066. [PMID: 36077462 PMCID: PMC9456085 DOI: 10.3390/ijms231710066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Endothelial-like cells may be obtained from CD133+ mononuclear cells isolated from human umbilical cord blood (hUCB) and expanded using endothelial-inducing medium (E-CD133 cells). Their use in regenerative medicine has been explored by the potential not only to form vessels but also by the secretion of bioactive elements. Extracellular vesicles (EVs) are prominent messengers of this paracrine activity, transporting bioactive molecules that may guide cellular response under different conditions. Using RNA-Seq, we characterized the miRNA content of EVs derived from E-CD133 cells cultivated under normoxia (N-EVs) and hypoxia (H-EVs) and observed that changing the O2 status led to variations in the selective loading of miRNAs in the EVs. In silico analysis showed that among the targets of differentially loaded miRNAs, there are transcripts involved in pathways related to cell growth and survival, such as FoxO and HIF-1 pathways. The data obtained reinforce the pro-regenerative potential of EVs obtained from E-CD133 cells and shows that fine tuning of their properties may be regulated by culture conditions.
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Affiliation(s)
- Anny Waloski Robert
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Bruna Hilzendeger Marcon
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Addeli Bez Batti Angulski
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Sharon de Toledo Martins
- Gene Expression Regulation Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Amanda Leitolis
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Marco Augusto Stimamiglio
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
| | - Alexandra Cristina Senegaglia
- Core for Cell Technology-School of Medicine, Universidade Católica Paraná-PUCPR, Curitiba 80215-901, PR, Brazil
- National Institute of Science and Technology for Regenerative Medicine (INCT-REGENERA), Rio de Janeiro 21941-902, RJ, Brazil
| | - Alejandro Correa
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
- National Institute of Science and Technology for Regenerative Medicine (INCT-REGENERA), Rio de Janeiro 21941-902, RJ, Brazil
- Correspondence: (A.C.); (L.R.A.)
| | - Lysangela Ronalte Alves
- Gene Expression Regulation Laboratory, Instituto Carlos Chagas—ICC-FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba 81350-010, PR, Brazil
- Correspondence: (A.C.); (L.R.A.)
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Bgatova NP, Makarova VV, Taskaeva YS, Nogovitsina SR, Toporkov IA, Eremina AV, Trunov AN, Chernykh VV. Ultrastructural Organization of Uveal Melanoma Stromal Cells. Bull Exp Biol Med 2019; 168:285-90. [PMID: 31782005 DOI: 10.1007/s10517-019-04692-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Indexed: 10/25/2022]
Abstract
Typical blood capillaries and vessels in uveal melanoma were shown and different types of uveal melanoma stromal cells were determined by electron microscopy and immunohistochemical analysis. Macrophages, fibroblasts of varying degrees of differentiation and endothelial-like cells with numerous caveolae in the cytoplasm were found in the channels of the extracellular matrix surrounding accumulations of tumor cells. The presence local structures positively stained for markers of the blood and lymphatic vessels (CD31 and podoplanin) in channels of the extracellular matrix suggests that the described endothelial-like cells can be the structural basis for blood and lymphatic vessels of the tumor.
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Yan D, He Y, Dai J, Yang L, Wang X, Ruan Q. Vascular endothelial growth factor modified macrophages transdifferentiate into endothelial-like cells and decrease foam cell formation. Biosci Rep 2017; 37:BSR20170002. [PMID: 28536311 DOI: 10.1042/BSR20170002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 05/20/2017] [Accepted: 05/22/2017] [Indexed: 12/30/2022] Open
Abstract
Macrophages are largely involved in the whole process of atherosclerosis from an initiation lesion to an advanced lesion. Endothelial disruption is the initial step and macrophage-derived foam cells are the hallmark of atherosclerosis. Promotion of vascular integrity and inhibition of foam cell formation are two important strategies for preventing atherosclerosis. How can we inhibit even the reverse negative role of macrophages in atherosclerosis? The present study was performed to investigate if overexpressing endogenous human vascular endothelial growth factor (VEGF) could facilitate transdifferentiation of macrophages into endothelial-like cells (ELCs) and inhibit foam cell formation. We demonstrated that VEGF-modified macrophages which stably overexpressed human VEGF (hVEGF165) displayed a high capability to alter their phenotype and function into ELCs in vitro. Exogenous VEGF could not replace endogenous VEGF to induce the transdifferentiation of macrophages into ELCs in vitro. We further showed that VEGF-modified macrophages significantly decreased cytoplasmic lipid accumulation after treatment with oxidized LDL (ox-LDL). Moreover, down-regulation of CD36 expression in these cells was probably one of the mechanisms of reduction in foam cell formation. Our results provided the in vitro proof of VEGF-modified macrophages as atheroprotective therapeutic cells by both promotion of vascular repair and inhibition of foam cell formation.
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