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Huber HF, Li C, Xie D, Gerow KG, Register TC, Shively CA, Cox LA, Nathanielsz PW. Female baboon adrenal zona fasciculata and zona reticularis regulatory and functional proteins decrease across the life course. GeroScience 2024; 46:3405-3417. [PMID: 38311700 PMCID: PMC11009170 DOI: 10.1007/s11357-024-01080-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/09/2024] [Indexed: 02/06/2024] Open
Abstract
Debate exists on life-course adrenocortical zonal function trajectories. Rapid, phasic blood steroid concentration changes, such as circadian rhythms and acute stress responses, complicate quantification. To avoid pitfalls and account for life-stage changes in adrenocortical activity indices, we quantified zonae fasciculata (ZF) and reticularis (ZR) across the life-course, by immunohistochemistry of key regulatory and functional proteins. In 28 female baboon adrenals (7.5-22.1 years), we quantified 12 key proteins involved in cell metabolism, division, proliferation, steroidogenesis (including steroid acute regulatory protein, StAR), oxidative stress, and glucocorticoid and mitochondrial function. Life-course abundance of ten ZF proteins decreased with age. Cell cycle inhibitor and oxidative stress markers increased. Seven of the 12 proteins changed in the same direction for ZR and ZF. Importantly, ZF StAR decreased, while ZR StAR was unchanged. Findings indicate ZF function decreased, and less markedly ZR function, with age. Causes and aging consequences of these changes remain to be determined.
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Affiliation(s)
- Hillary Fries Huber
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military, San Antonio, TX, 78227, USA.
| | - Cun Li
- Texas Pregnancy & Life-Course Health Research Center, Animal Science, University of Wyoming, Laramie, WY, USA
| | - Dongbin Xie
- Texas Pregnancy & Life-Course Health Research Center, Animal Science, University of Wyoming, Laramie, WY, USA
| | | | - Thomas C Register
- Pathology-Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Carol A Shively
- Pathology-Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Laura A Cox
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military, San Antonio, TX, 78227, USA
- Center for Precision Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Peter W Nathanielsz
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military, San Antonio, TX, 78227, USA
- Texas Pregnancy & Life-Course Health Research Center, Animal Science, University of Wyoming, Laramie, WY, USA
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Van Leene C, De Bosscher K. NCOR1/2 and glucocorticoid receptor orchestrate hepatic function. Nat Metab 2024; 6:783-784. [PMID: 38622412 DOI: 10.1038/s42255-024-01028-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Affiliation(s)
- Chloé Van Leene
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Karolien De Bosscher
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
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Mata-Greenwood E, Chow WL, Anti NAO, Sands LD, Adeoye O, Ford SP, Nathanielsz PW. Dysregulation of Glucocorticoid Receptor Homeostasis and Glucocorticoid-Associated Genes in Umbilical Cord Endothelial Cells of Diet-Induced Obese Pregnant Sheep. Int J Mol Sci 2024; 25:2311. [PMID: 38396987 PMCID: PMC10888705 DOI: 10.3390/ijms25042311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Maternal obesity (MO) is associated with offspring cardiometabolic diseases that are hypothesized to be partly mediated by glucocorticoids. Therefore, we aimed to study fetal endothelial glucocorticoid sensitivity in an ovine model of MO. Rambouillet/Columbia ewes were fed either 100% (control) or 150% (MO) National Research Council recommendations from 60 d before mating until near-term (135 days gestation). Sheep umbilical vein and artery endothelial cells (ShUVECs and ShUAECs) were used to study glucocorticoid receptor (GR) expression and function in vitro. Dexamethasone dose-response studies of gene expression, activation of a glucocorticoid response element (GRE)-dependent luciferase reporter vector, and cytosolic/nuclear GR translocation were used to assess GR homeostasis. MO significantly increased basal GR protein levels in both ShUVECs and ShUAECs. Increased GR protein levels did not result in increased dexamethasone sensitivity in the regulation of key endothelial gene expression such as endothelial nitric oxide synthase, plasminogen activator inhibitor 1, vascular endothelial growth factor, or intercellular adhesion molecule 1. In ShUVECs, MO increased GRE-dependent transactivation and FKBP prolyl isomerase 5 (FKBP5) expression. ShUAECs showed generalized glucocorticoid resistance in both dietary groups. Finally, we found that ShUVECs were less sensitive to dexamethasone-induced activation of GR than human umbilical vein endothelial cells (HUVECs). These findings suggest that MO-mediated effects in the offspring endothelium could be further mediated by dysregulation of GR homeostasis in humans as compared with sheep.
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Affiliation(s)
- Eugenia Mata-Greenwood
- Lawrence D. Longo Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA; (W.L.C.); (N.A.O.A.); (L.D.S.)
| | - Wendy L. Chow
- Lawrence D. Longo Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA; (W.L.C.); (N.A.O.A.); (L.D.S.)
| | - Nana A. O. Anti
- Lawrence D. Longo Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA; (W.L.C.); (N.A.O.A.); (L.D.S.)
| | - LeeAnna D. Sands
- Lawrence D. Longo Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA; (W.L.C.); (N.A.O.A.); (L.D.S.)
| | - Olayemi Adeoye
- Department of Pharmaceutical Sciences, School of Pharmacy, Loma Linda University, Loma Linda, CA 92350, USA;
| | - Stephen P. Ford
- Center for the Study of Fetal Programming, Department of Animal Science, University of Wyoming, Laramie, WY 82071, USA (P.W.N.)
| | - Peter W. Nathanielsz
- Center for the Study of Fetal Programming, Department of Animal Science, University of Wyoming, Laramie, WY 82071, USA (P.W.N.)
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