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Brooks SD, Hileman SM, Chantler PD, Milde SA, Lemaster KA, Frisbee SJ, Shoemaker JK, Jackson DN, Frisbee JC. Protection from vascular dysfunction in female rats with chronic stress and depressive symptoms. Am J Physiol Heart Circ Physiol 2018; 314:H1070-H1084. [PMID: 29451821 DOI: 10.1152/ajpheart.00647.2017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The increasing prevalence and severity of clinical depression are strongly correlated with vascular disease risk, creating a comorbid condition with poor outcomes but demonstrating a sexual disparity whereby female subjects are at lower risk than male subjects for subsequent cardiovascular events. To determine the potential mechanisms responsible for this protection against stress/depression-induced vasculopathy in female subjects, we exposed male, intact female, and ovariectomized (OVX) female lean Zucker rats to the unpredictable chronic mild stress (UCMS) model for 8 wk and determined depressive symptom severity, vascular reactivity in ex vivo aortic rings and middle cerebral arteries (MCA), and the profile of major metabolites regulating vascular tone. While all groups exhibited severe depressive behaviors from UCMS, severity was significantly greater in female rats than male or OVX female rats. In all groups, endothelium-dependent dilation was depressed in aortic rings and MCAs, although myogenic activation and vascular (MCA) stiffness were not impacted. Higher-resolution results from pharmacological and biochemical assays suggested that vasoactive metabolite profiles were better maintained in female rats with normal gonadal sex steroids than male or OVX female rats, despite increased depressive symptom severity (i.e., higher nitric oxide and prostacyclin and lower H2O2 and thromboxane A2 levels). These results suggest that female rats exhibit more severe depressive behaviors with UCMS but are partially protected from the vasculopathy that afflicts male rats and female rats lacking normal sex hormone profiles. Determining how female sex hormones afford partial vascular protection from chronic stress and depression is a necessary step for addressing the burden of these conditions on cardiovascular health. NEW & NOTEWORTHY This study used a translationally relevant model for chronic stress and elevated depressive symptoms to determine how these factors impact conduit and resistance arteriolar function in otherwise healthy rats. While chronic stress leads to an impaired vascular reactivity associated with elevated oxidant stress, inflammation, and reduced metabolite levels, we demonstrated partial protection from vascular dysfunction in female rats with normal sex hormone profiles compared with male or ovariectomized female rats.
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Affiliation(s)
- Steven D Brooks
- Department of Physiology and Pharmacology, West Virginia University , Morgantown, West Virginia
| | - Stanley M Hileman
- Department of Physiology and Pharmacology, West Virginia University , Morgantown, West Virginia
| | - Paul D Chantler
- Department of Exercise Physiology, West Virginia University , Morgantown, West Virginia
| | - Samantha A Milde
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada
| | - Kent A Lemaster
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada
| | - Stephanie J Frisbee
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada.,Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada
| | - J Kevin Shoemaker
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada.,School of Kinesiology, University of Western Ontario , London, Ontario , Canada
| | - Dwayne N Jackson
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada
| | - Jefferson C Frisbee
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Faculty of Health Sciences, University of Western Ontario , London, Ontario , Canada
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Anisiewicz A, Pawlik A, Filip-Psurska B, Turlej E, Dzimira S, Milczarek M, Gdesz K, Papiernik D, Jarosz J, Kłopotowska D, Kutner A, Mazur A, Wietrzyk J. Unfavorable effect of calcitriol and its low-calcemic analogs on metastasis of 4T1 mouse mammary gland cancer. Int J Oncol 2017; 52:103-126. [PMID: 29115583 PMCID: PMC5743363 DOI: 10.3892/ijo.2017.4185] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/12/2017] [Indexed: 12/17/2022] Open
Abstract
Low vitamin D status is considered as a risk factor for breast cancer and has prognostic significance. Furthermore, vitamin D deficiency increases after adjuvant cancer therapy, which alters bone metabolism increasing the risk of osteoporosis. It is now postulated that vitamin D supplementation in breast cancer treatment delays the recurrence of cancer thereby extending survival. We evaluated the impact of calcitriol and its low-calcemic analogs, PRI-2191 and PRI-2205, on the tumor growth, angiogenesis, and metastasis of 4T1 mouse mammary gland cancer. Gene expression analysis related to cancer invasion/metastasis, real-time PCR, ELISA, western blotting, and histochemical studies were performed. In vitro studies were conducted to compare the effects of calcitriol and its analogs on 4T1 and 67NR cell proliferation and expression of selected proteins. Calcitriol and its analogs increased lung metastasis without influencing the growth of primary tumor. The levels of plasma 17β-estradiol and transforming growth factor β (TGFβ) were found to be elevated after treatment. Moreover, the results showed that tumor blood perfusion improved and osteopontin (OPN) levels increased, whereas vascular endothelial growth factor (VEGF) and TGFβ levels decreased in tumors from treated mice. All the studied treatments resulted in increased collagen content in the tumor tissue in the early step of tumor progression, and calcitriol caused an increase in collagen content in lung tissue. In addition, in vitro proliferation of 4T1 tumor cells was not found to be affected by calcitriol or its analogs in contrast to non-metastatic 67NR cells. Calcitriol and its analogs enhanced the metastatic potential of 4T1 mouse mammary gland cancer by inducing the secretion of OPN probably via host cells. In addition, OPN tumor overexpression prevailed over the decreasing tumor TGFβ level and blood vessel normalization via tumor VEGF deprivation induced by calcitriol and its analogs. Moreover, the increased plasma TGFβ and 17β-estradiol levels contributed to the facilitation of metastatic process.
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Affiliation(s)
- Artur Anisiewicz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Agata Pawlik
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Beata Filip-Psurska
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Eliza Turlej
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Stanisław Dzimira
- Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - Magdalena Milczarek
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Katarzyna Gdesz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Diana Papiernik
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Joanna Jarosz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Dagmara Kłopotowska
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
| | - Andrzej Kutner
- Department of Pharmacology, Pharmaceutical Research Institute, 01-793 Warsaw, Poland
| | - Andrzej Mazur
- Université Clermont Auvergne, INRA, UNH, F-63000 Clermont-Ferrand, France
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53‑114 Wroclaw, Poland
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Pacini S, Barachini S, Montali M, Carnicelli V, Fazzi R, Parchi P, Petrini M. Mesangiogenic Progenitor Cells Derived from One Novel CD64(bright)CD31(bright)CD14(neg) Population in Human Adult Bone Marrow. Stem Cells Dev 2016; 25:661-73. [PMID: 26975798 PMCID: PMC4854213 DOI: 10.1089/scd.2015.0344] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) have been the object of extensive research for decades, due to their intrinsic clinical value. Nonetheless, the unambiguous identification of a unique in vivo MSC progenitor is still lacking, and the hypothesis that these multipotent cells could possibly arise from different in vivo precursors has been gaining consensus in the last years. We identified a novel multipotent cell population in human adult bone marrow that we first named Mesodermal Progenitor Cells (MPCs) for the ability to differentiate toward the mesenchymal lineage, while still retaining angiogenic potential. Despite extensive characterization, MPCs positioning within the differentiation pathway and whether they can be ascribed as possible distinctive progenitor of the MSC lineage is still unclear. In this study, we describe the ex vivo isolation of one novel bone marrow subpopulation (Pop#8) with the ability to generate MPCs. Multicolor flow cytometry in combination with either fluorescence-activated cell sorting or magnetic-activated cell sorting were applied to characterize Pop#8 as CD64(bright)CD31(bright)CD14(neg). We defined Pop#8 properties in culture, including the potential of Pop#8-derived MPCs to differentiate into MSCs. Gene expression data were suggestive of Pop#8 in vivo involvement in hematopoietic stem cell niche constitution/maintenance. Pop#8 resulted over three logs more frequent than other putative MSC progenitors, corroborating the idea that most of the controversies regarding culture-expanded MSCs could be the consequence of different culture conditions that select or promote particular subpopulations of precursors.
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Affiliation(s)
- Simone Pacini
- 1 Hematology Division, Department of Clinical and Experimental Medicine, University of Pisa , Pisa, Italy
| | - Serena Barachini
- 1 Hematology Division, Department of Clinical and Experimental Medicine, University of Pisa , Pisa, Italy
| | - Marina Montali
- 1 Hematology Division, Department of Clinical and Experimental Medicine, University of Pisa , Pisa, Italy
| | - Vittoria Carnicelli
- 2 Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa , Pisa, Italy
| | - Rita Fazzi
- 1 Hematology Division, Department of Clinical and Experimental Medicine, University of Pisa , Pisa, Italy
| | - Paolo Parchi
- 3 First Orthopedic Division, Department of Translational Research and New Technology in Medicine and Surgery, University of Pisa , Pisa, Italy
| | - Mario Petrini
- 1 Hematology Division, Department of Clinical and Experimental Medicine, University of Pisa , Pisa, Italy
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Identification of the active components in Bone Marrow Soup: a mitigator against irradiation-injury to salivary glands. Sci Rep 2015; 5:16017. [PMID: 26526154 PMCID: PMC4630618 DOI: 10.1038/srep16017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 10/08/2015] [Indexed: 12/21/2022] Open
Abstract
In separate studies, an extract of soluble intracellular contents from whole bone marrow cells, named “Bone Marrow (BM) Soup”, was reported to either improve cardiac or salivary functions post-myocardial infarction or irradiation (IR), respectively. However, the active components in BM Soup are unknown. To demonstrate that proteins were the active ingredients, we devised a method using proteinase K followed by heating to deactivate proteins and for safe injections into mice. BM Soup and “deactivated BM Soup” were injected into mice that had their salivary glands injured with 15Gy IR. Control mice received either injections of saline or were not IR. Results at week 8 post-IR showed the ‘deactivated BM Soup’ was no better than injections of saline, while injections of native BM Soup restored saliva flow, protected salivary cells and blood vessels from IR-damage. Protein arrays detected several angiogenesis-related factors (CD26, FGF, HGF, MMP-8, MMP-9, OPN, PF4, SDF-1) and cytokines (IL-1ra, IL-16) in BM Soup. In conclusion, the native proteins (but not the nucleic acids, lipids or carbohydrates) were the therapeutic ingredients in BM Soup for functional salivary restoration following IR. This molecular therapy approach has clinical potential because it is theoretically less tumorigenic and immunogenic than cell therapies.
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Decellularized allogeneic heart valves demonstrate self-regeneration potential after a long-term preclinical evaluation. PLoS One 2014; 9:e99593. [PMID: 24940754 PMCID: PMC4062459 DOI: 10.1371/journal.pone.0099593] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 05/16/2014] [Indexed: 01/02/2023] Open
Abstract
Tissue-engineered heart valves are proposed as novel viable replacements granting longer durability and growth potential. However, they require extensive in vitro cell-conditioning in bioreactor before implantation. Here, the propensity of non-preconditioned decellularized heart valves to spontaneous in body self-regeneration was investigated in a large animal model. Decellularized porcine aortic valves were evaluated for right ventricular outflow tract (RVOT) reconstruction in Vietnamese Pigs (n = 11) with 6 (n = 5) and 15 (n = 6) follow-up months. Repositioned native valves (n = 2 for each time) were considered as control. Tissue and cell components from explanted valves were investigated by histology, immunohistochemistry, electron microscopy, and gene expression. Most substitutes constantly demonstrated in vivo adequate hemodynamic performances and ex vivo progressive repopulation during the 15 implantation months without signs of calcifications, fibrosis and/or thrombosis, as revealed by histological, immunohistochemical, ultrastructural, metabolic and transcriptomic profiles. Colonizing cells displayed native-like phenotypes and actively synthesized novel extracellular matrix elements, as collagen and elastin fibers. New mature blood vessels, i.e. capillaries and vasa vasorum, were identified in repopulated valves especially in the medial and adventitial tunicae of regenerated arterial walls. Such findings correlated to the up-regulated vascular gene transcription. Neoinnervation hallmarks were appreciated at histological and ultrastructural levels. Macrophage populations with reparative M2 phenotype were highly represented in repopulated valves. Indeed, no aspects of adverse/immune reaction were revealed in immunohistochemical and transcriptomic patterns. Among differentiated elements, several cells were identified expressing typical stem cell markers of embryonic, hematopoietic, neural and mesenchymal lineages in significantly higher number and specific topographic distribution in respect to control valves. Following the longest follow-up ever realized in preclinical models, non-preconditioned decellularized allogeneic valves offer suitable microenvironment for in vivo cell homing and tissue remodeling. Manufactured with simple, timesaving and cost-effective procedures, these promising valve replacements hold promise to become an effective alternative, especially for pediatric patients.
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Derivation of human peripheral blood derived endothelial progenitor cells and the role of osteopontin surface modification and eNOS transfection. Biomaterials 2013; 34:7292-301. [PMID: 23810253 DOI: 10.1016/j.biomaterials.2013.06.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 06/04/2013] [Indexed: 11/22/2022]
Abstract
Endothelial coverage of blood-contacting biomaterial surfaces has been difficult to achieve. A readily available autologous source of endothelium combined with an appropriate attachment substrate would improve the chances of developing functional surfaces. Here we describe methods to derive high quantities of human endothelial progenitor cells (EPCs) from peripheral blood monocytes (PBMCs) obtained by leukapheresis. These cells are morphologically and phenotypically similar to human umbilical vein endothelial cells (HUVECs); however, their expression of the key vascular factor - endothelial nitric oxide synthase (eNOS) - is markedly lower than that observed in HUVECs. We demonstrate that eNOS levels can be restored with plasmid-based transfection. To promote EPC adherence we examined substrate enhancement with a matricellular protein associated with vascular repair, osteopontin (OPN). We observed dose- and time-dependent responses of OPN in EPC adhesion, spreading, and haptotactic migration of EPCs in Boyden chamber assays. In addition, the combination of the OPN coating and enhanced eNOS expression in EPCs maximally enhanced cell adhesion (39.6 ± 1.7 and 49.4 ± 2.4 cells/field for 0 and 1 nM OPN) and spreading (84.7 ± 3.5% and 92.1 ± 3.9% for 0 nM and 1 nM OPN). These data highlight the direct effects of OPN on peripheral blood derived EPCs, suggesting that OPN works by mediating progenitor cell adhesion during vascular injury. The combination of autologous EPCs and OPN coatings could be a promising method of developing functional endothelialized surfaces.
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D'Amico F, Skarmoutsou E, Quaderno G, Malaponte G, La Corte C, Scibilia G, D'Agate G, Scollo P, Fraggetta F, Spandidos DA, Mazzarino MC. Expression and localisation of osteopontin and prominin-1 (CD133) in patients with endometriosis. Int J Mol Med 2013; 31:1011-6. [PMID: 23545719 PMCID: PMC3658602 DOI: 10.3892/ijmm.2013.1325] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 03/28/2013] [Indexed: 11/17/2022] Open
Abstract
In this study, we investigated the expression and localisation of the proteins, osteopontin (OPN) and prominin-1 (CD133), as well as the plasma OPN levels in the endometrium of patients with endometriosis. Samples of ectopic endometriotic lesions and normal endometrium were obtained from 31 women with endometriosis and 28 healthy control subjects. The mRNA and protein expression of OPN and CD133 was analysed by real-time RT-PCR and immunohistochemistry. The plasma levels of OPN were determined by ELISA. Our results revealed that OPN mRNA and protein expression, as well as its release in the blood, was significantly increased in the endometriotic lesions in comparison to normal tissue. Although the presence of CD133+ cells was detected in the normal endometrium, as well as in the endometriosis specimens, a significant quantitative variation of this protein was not demonstrated in the patients with endometriosis. In conclusion, our data indicate that OPN is involved in the development of endometriosis by enhancing the invasiveness, proliferation and survival of endometrial cells in ectopic lesions. CD133 cannot be used as a disease marker for endometriosis, although an involvement of this protein in the pathogenesis of endometriosis cannot be excluded.
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Affiliation(s)
- Fabio D'Amico
- Department of Biomedical Sciences, Pathology and Oncology Unit, University of Catania, Catania, Italy.
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Winhofer Y, Kiefer FW, Handisurya A, Tura A, Klein K, Schneider B, Marculescu R, Wagner OF, Pacini G, Luger A, Stulnig TM, Kautzky-Willer A. CTX (crosslaps) rather than osteopontin is associated with disturbed glucose metabolism in gestational diabetes. PLoS One 2012; 7:e40947. [PMID: 22844418 PMCID: PMC3402470 DOI: 10.1371/journal.pone.0040947] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 06/15/2012] [Indexed: 11/19/2022] Open
Abstract
Objective Reciprocal interaction between bone and glucose metabolism might play a pivotal role in the development of type 2 diabetes. We recently demonstrated that osteocalcin is increased in women with gestational diabetes (GDM) compared to healthy pregnant women and related to enhanced insulin secretion. Here, we aimed to investigate the role of the bone resorption marker CTX and osteopontin (OPN), a key molecule in subclinical inflammation underlying insulin resistance, in gestational diabetes. Methods Insulin sensitivity and secretion (derived from OGTT) as well as CTX and osteopontin were investigated in 26 GDM and 52 women with normal glucose tolerance during pregnancy [CON] between 24th and 28th gestational weeks; 24 women also underwent postpartum examination. Results CTX was significantly higher in GDM compared to CON (0.44±0.20 vs.0.28±0.12 ng/ml, p<.0001) and positively correlated with osteocalcin (R = 0.64, p<.0001) and parameters of insulin secretion. Osteopontin plasma concentrations were decreased in GDM compared to CON (28.81±22.12 vs.37.68±19.63 ng/ml, p = 0.04), and did not show any relation to insulin secretion or sensitivity, but were significantly correlated with CRP (R = 0.3, p<0.007) and liver enzymes. Twelve weeks after delivery CTX and OPN were increased compared to pregnancy (both p<.0001) and did not differ between GDM and CON. Conclusion Our findings support the idea of a tight regulation between bone and glucose metabolism, and suggest, that less curbed CTX during pregnancy might be involved in osteocalcin-mediated amelioration of insulin secretion in GDM. On the other hand, osteopontin was unrelated to insulin resistance in GDM, but associated with inflammatory markers and liver enzymes in all women.
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Affiliation(s)
- Yvonne Winhofer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Florian W. Kiefer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Ammon Handisurya
- Division of Nephrology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Andrea Tura
- Metabolic Unit, Institute of Biomedical Engineering, National Research Council, Padova, Italy
| | - Katharina Klein
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Barbara Schneider
- CeMSIIS, Section of Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Rodrig Marculescu
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, General Hospital of Vienna, Vienna, Austria
| | - Oswald F. Wagner
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, General Hospital of Vienna, Vienna, Austria
| | - Giovanni Pacini
- Metabolic Unit, Institute of Biomedical Engineering, National Research Council, Padova, Italy
| | - Anton Luger
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas M. Stulnig
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Christian Doppler-Laboratory for Cardio-Metabolic Immunotherapy, Medical University of Vienna, Vienna, Austria
| | - Alexandra Kautzky-Willer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- * E-mail:
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Jin X, Fu GX, Li XD, Zhu DL, Gao PJ. Expression and function of osteopontin in vascular adventitial fibroblasts and pathological vascular remodeling. PLoS One 2011; 6:e23558. [PMID: 21949681 PMCID: PMC3176202 DOI: 10.1371/journal.pone.0023558] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 07/20/2011] [Indexed: 12/04/2022] Open
Abstract
Osteopontin is known to play important roles in various diseases including vascular disorders. However, little is known about its expression and function in vascular adventitial fibroblasts. Adventitial fibroblasts have been shown to play a key role in pathological vascular remodeling associating with various vascular disorders. In this study, we measured activation of Osteopontin and its biological functions in cultured adventitial fibroblasts and injured rat carotid injury arteries induced by balloon angioplasty. Our results showed that angiotensin II and aldosterone increased Osteopontin expression in adventitial fibroblasts in a time- and concentration-dependent manner. MAPKs and AP-1 pathways were involved in Osteopontin upregulation. In addition, Adventitial fibroblast migration stimulated by Angiotensin II and aldosterone required OPN expression. Perivascular delivery of antisense oligonucleotide for Osteopontin suppressed neointimal formation post-injury. We concluded that upregulation of Osteopontin expression in adventitial fibroblasts might be important in the pathogenesis of vascular remodeling after arterial injury.
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Affiliation(s)
- Xin Jin
- Laboratory of Vascular Biology, Institute of Health Science, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
- Shanghai Institute of Hypertension, Shanghai, China
- Faculty of Biological Science, Institute of Membrane and Systems Biology, University of Leeds, Leeds, United Kingdom
| | - Guo-xiang Fu
- State Key Laboratory of Medical Genomics and Shanghai Key Laboratory of Vascular Biology, Shanghai JiaoTong University School of Medicine, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai, China
| | - Xiao-dong Li
- Laboratory of Vascular Biology, Institute of Health Science, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
- Shanghai Institute of Hypertension, Shanghai, China
| | - Ding-liang Zhu
- State Key Laboratory of Medical Genomics and Shanghai Key Laboratory of Vascular Biology, Shanghai JiaoTong University School of Medicine, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai, China
| | - Ping-jin Gao
- State Key Laboratory of Medical Genomics and Shanghai Key Laboratory of Vascular Biology, Shanghai JiaoTong University School of Medicine, Ruijin Hospital, Shanghai, China
- Laboratory of Vascular Biology, Institute of Health Science, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
- Shanghai Institute of Hypertension, Shanghai, China
- * E-mail:
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Activation function 2 (AF2) of estrogen receptor-alpha is required for the atheroprotective action of estradiol but not to accelerate endothelial healing. Proc Natl Acad Sci U S A 2011; 108:13311-6. [PMID: 21788522 DOI: 10.1073/pnas.1105632108] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
17β-Estradiol (E2) regulates estrogen receptor-α (ERα) target gene transcription through the two independent activation functions (AFs), AF1 and AF2, located in the N-terminal and ligand binding domain of ERα, respectively. We previously reported that ERα is required for the E2 atheroprotective action as well as for its accelerative action on endothelial healing, but its AF1 function is dispensable. Here, we investigated the role of ERαAF2 in these two major beneficial actions of E2 by electively targeting ERαAF2 (named ERαAF2(0)). Our results prove four points. (i) Compared with WT ERα, the ability of ERαAF2(0) to stimulate the C3 complement or the estrogen response element-thymidine kinase promoter in two cell lines was dramatically decreased, confirming the importance of AF2 in the E2-induced transcriptional activity of ERα. (ii) The uterotrophic action of E2 was totally absent in ERαAF2(0) mice, showing the crucial role of ERαAF2 in E2-induced uterus hyperplasia. (iii) ERαAF2 was dispensable for the accelerative action of E2 on endothelial healing, underlining the functionality of ERαAF2(0) in vivo. (iv) Finally, the atheroprotective effect of E2 was abrogated in ERαAF2(0) LDL-r(-/-) mice. Thus, whereas ERαAF1 and ERαAF2 are both required for the uterotrophic action of E2, we show that only ERαAF2 is necessary for its atheroprotective effect.
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Yu M, Liu Q, Yi K, Wu L, Tan X. Effects of osteopontin on functional activity of late endothelial progenitor cells. J Cell Biochem 2011; 112:1730-6. [PMID: 21328611 DOI: 10.1002/jcb.23071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The aim of this study is to investigate the effect of osteopontin (OPN) on functional activity of late endothelial progenitor cells (EPCs). Total mononuclear cells (MNCs) were isolated from human umbilical cord blood by Ficoll density gradient centrifugation, and then the cells were plated on fibronectin-coated culture plates. Late EPCs were positive for both 1,1-dioctadecyl-3,3,3,3-tetramethylindocarbocyanine-labeled acetylated low-density lipoprotein (DiI-acLDL) and fluorescein-isothiocyanate-conjugated Ulex europaeus agglutinin lectin (UEA-1). Expression of von Willbrand factor (vWF) and kinase insert domain receptor (KDR) were detected by indirect immunofluorescence staining. Late EPCs of 3-5 passages were treated for 24 h with OPN (to make a series of final concentration: 0.005 µg/ml, 0.01 µg/ml, 0.05 µg/ml, 0.5 µg/ml, 2.5 µg/ml), or vehicle control. The proliferation, migration, and in vitro vasculogenesis activity of late EPCs were assayed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, modified Boyden chamber assay and an in vitro angiogenesis assay, respectively. Late EPCs adhesion assay was performed by replating cells on fibronectin-coated plates, and then adherent cells were counted. Incubation with OPN dose-dependently inhibited the proliferative, adhesive, and in vitro vasculogenesis capacity and increased migratory activity of late EPCs.
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Affiliation(s)
- Min Yu
- Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
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Lenfant F, Trémollières F, Gourdy P, Arnal JF. Timing of the vascular actions of estrogens in experimental and human studies: why protective early, and not when delayed? Maturitas 2010; 68:165-73. [PMID: 21167666 DOI: 10.1016/j.maturitas.2010.11.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 11/18/2010] [Accepted: 11/18/2010] [Indexed: 01/27/2023]
Abstract
Estrogens, and in particular 17β-estradiol (E2), play a pivotal role in sexual development and reproduction and are also implicated in a large number of physiological processes including the cardiovascular system. Although epidemiological studies and Nurses' Health Study suggested, and all animal models of early atheroma clearly demonstrated a vasculoprotective action of both endogenous and exogenous estrogens, the Women's Health Initiative did not confirm the preventive action of estrogens against coronary heart disease (CHD). However, women who initiated hormone therapy closer to menopause tended to have reduced CHD risk compared with increased CHD risk among women more distant from menopause. Thus, it is now mandatory to try to understand the mechanisms that could have influenced the actions of estrogens at various stages of atherosclerosis and/or of life. In this current review, we will summarize our understanding of the potential cellular targets and mechanisms of the vasculoprotective actions of estrogens, as well as of the lack of action of estrogens when administered after a period of hormonal deprivation. The mechanisms of the aggravating role of progestogens such as medroxyprogesterone acetate will be considered. Finally, we will analyze the possibilities to uncouple some beneficial from other undesirable actions following the partial/selective activation of estrogen receptors.
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Affiliation(s)
- Françoise Lenfant
- INSERM U1048-I2MC, Faculté de Médecine, Université de Toulouse III et CHU de Toulouse, Toulouse, France.
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Arnal JF, Fontaine C, Billon-Galés A, Favre J, Laurell H, Lenfant F, Gourdy P. Estrogen Receptors and Endothelium. Arterioscler Thromb Vasc Biol 2010; 30:1506-12. [DOI: 10.1161/atvbaha.109.191221] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Estrogens, and in particular 17β-estradiol (E2), play a pivotal role in sexual development and reproduction and are also implicated in a large number of physiological processes, including the cardiovascular system. Both acetylcholine-induced and flow-dependent vasodilation are preserved or potentiated by estrogen treatment in both animal models and humans. Indeed, E2 increases the endothelial production of nitric oxide and prostacyclin and prevents early atheroma through endothelial-mediated mechanisms. Furthermore, whereas it prevents endothelial activation, E2 potentiates the ability of several subpopulations of the circulating or resident immune cells to produce proinflammatory cytokines. The balance between these 2 actions could determine the final effect in a given pathophysiological process. E2 also promotes endothelial healing, as well as angiogenesis. Estrogen actions are essentially mediated by 2 molecular targets: estrogen receptor-α (ERα) and ERβ. The analysis of mouse models targeted for ERα or ERβ demonstrated a prominent role of ERα in vascular biology. ERα directly modulates transcription of target genes through 2 activation functions (AFs), AF-1 and AF-2. Interestingly, an AF-1-deficient ERα isoform can be physiologically expressed in the endothelium and appears sufficient to mediate most of the vasculoprotective actions of E2. In contrast, AF-1 is necessary for the E2 actions in reproductive targets. Thus, it appears conceivable to uncouple the vasculoprotective and sexual actions with appropriate selective ER modulators.
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Affiliation(s)
- Jean-François Arnal
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Coralie Fontaine
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Audrey Billon-Galés
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Julie Favre
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Henrik Laurell
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Françoise Lenfant
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
| | - Pierre Gourdy
- From INSERM U858-I2MC, Faculté de Médecine, Université de Toulouse et CHU de Toulouse, Toulouse, France
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Wary KK, Vogel SM, Garrean S, Zhao YD, Malik AB. Requirement of alpha(4)beta(1) and alpha(5)beta(1) integrin expression in bone-marrow-derived progenitor cells in preventing endotoxin-induced lung vascular injury and edema in mice. Stem Cells 2010; 27:3112-20. [PMID: 19839056 DOI: 10.1002/stem.241] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The goal of this study was to determine the role of integrin-mediated adhesion of bone-marrow-derived progenitor cells (BMPCs) as a requirement for the endothelial barrier protection in a lung injury model. C57BL mice were used as the source for BMPCs, which were characterized as CD34(+) and fetal liver kinase-1 (Flk1)(+) and also an expression of a repertoire of integrins. We used a mouse model of bacterial lipopolysaccharide (LPS)-induced lung vascular injury and edema formation to test the effects of BMPC integrin expression in preventing endothelial barrier injury. Adhesion of BMPCs to purified extracellular matrix proteins induced focal adhesion kinase (Fak) phosphorylation and formation of branching point structures in a alpha(4) and alpha(5) integrin-dependent manner. BMPCs expressing red fluorescent protein (RFP) were administered via the retro-orbital venous route in mice treated intraperitonially with LPS (7.5 mg/kg body weight). We observed increased retention of RFP-labeled Flk1(+) and CD34(+) BMPCs for up to 8 weeks in mice injured with LPS. BMPC transplantation increased survival by 50% (at 72-96 hours after LPS) and reduced lung vascular injury and extravascular water content induced by LPS. However, blocking with anti-alpha(4) or anti-alpha(5) integrin antibody or shRNA-mediated silencing of alpha(4) or alpha(5) integrins in donor BMPCs failed to prevent the vascular injury or edema formation and mortality. Thus, alpha(4) and alpha(5) integrin-dependent adhesion of BMPCs in lung tissue plays a critical role in preventing lung vascular injury and increasing survival in a mouse model of LPS-induced acute lung injury.
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Affiliation(s)
- Kishore K Wary
- Department of Pharmacology and Center for Lung and Vascular Biology, The University of Illinois, Chicago, Illinois 60612, USA.
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Renault MA, Robbesyn F, Réant P, Douin V, Daret D, Allières C, Belloc I, Couffinhal T, Arnal JF, Klingel K, Desgranges C, Dos Santos P, Charpentier F, Gadeau AP. Osteopontin expression in cardiomyocytes induces dilated cardiomyopathy. Circ Heart Fail 2010; 3:431-9. [PMID: 20200330 DOI: 10.1161/circheartfailure.109.898114] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Inflammatory processes play a critical role in myocarditis, dilated cardiomyopathy, and heart failure. The expression of the inflammatory chemokine osteopontin (OPN) is dramatically increased in cardiomyocytes and inflammatory cells during myocarditis and heart failure in human and animals. However, its role in the development of heart diseases is not known. METHODS AND RESULTS To understand whether OPN is involved in cardiomyopathies, we generated a transgenic mouse (MHC-OPN) that specifically overexpresses OPN in cardiomyocytes with cardiac-specific promoter-directed OPN expression. Young MHC-OPN mice were phenotypically indistinguishable from their control littermates, but most of them died prematurely with a half-life of 12 weeks of age. Electrocardiography revealed conduction defects. Echocardiography showed left ventricular dilation and systolic dysfunction. Histological analysis revealed cardiomyocyte loss, severe fibrosis, and inflammatory cell infiltration. Most of these inflammatory cells were activated T cells with Th1 polarization and cytotoxic activity. Autoantibodies against OPN, cardiac myosin, or troponin I, were not found in the serum of MHC-OPN mice. CONCLUSIONS These data show that OPN expression in the heart induces in vivo T-cell recruitment and activation leading to chronic myocarditis, the consequence of which is myocyte destruction and hence, dilated cardiomyopathy. Thus, OPN might therefore constitute a potential therapeutic target to limit heart failure.
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Imanishi T, Tsujioka H, Akasaka T. Endothelial progenitor cell senescence--is there a role for estrogen? Ther Adv Cardiovasc Dis 2009; 4:55-69. [PMID: 19965898 DOI: 10.1177/1753944709353173] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Recent studies have demonstrated that aging or senescence constitutes a potential limitation to the ability of endothelial progenitor cells (EPCs) to sustain ischemic tissue repair. Excess amount of reactive oxygen species (ROS) is involved in senescence, causing defective neovascularization. Conversely, estrogens have been shown to accelerate recovery of the endothelium after vascular injury. Estrogen reduces EPC senescence through augmentation of telomerase activity. In addition, the inhibition of EPC senescence by estrogen in vitro may improve the functional activity of EPCs in a way that is important for potential cell therapy. This review describes current understanding of EPC senescence and the role of estrogen in preventing EPC senescence.
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Affiliation(s)
- Toshio Imanishi
- Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan.
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Molin DG, van den Akker NM, Post MJ. Affirmative Action of Osteopontin on Endothelial Progenitors. Arterioscler Thromb Vasc Biol 2008; 28:2099-100. [DOI: 10.1161/atvbaha.108.176446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Daniel G.M. Molin
- From the Departments of Physiology (D.G.M.M., M.J.P.) and Cardiology (N.M.S.v.d.A.), CARIM, Maastricht University Medical Center, the Netherlands; and the Department of Biomedical Engineering (M.J.P.), Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Nynke M.S van den Akker
- From the Departments of Physiology (D.G.M.M., M.J.P.) and Cardiology (N.M.S.v.d.A.), CARIM, Maastricht University Medical Center, the Netherlands; and the Department of Biomedical Engineering (M.J.P.), Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Mark J. Post
- From the Departments of Physiology (D.G.M.M., M.J.P.) and Cardiology (N.M.S.v.d.A.), CARIM, Maastricht University Medical Center, the Netherlands; and the Department of Biomedical Engineering (M.J.P.), Eindhoven University of Technology, Eindhoven, the Netherlands
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