1
|
Gourgas O, Lemire G, Eaton AJ, Alshahrani S, Duker AL, Li J, Carroll RS, Mackenzie S, Nikkel SM, Bober MB, Boycott KM, Murshed M. Author Correction: Specific heterozygous variants in MGP lead to endoplasmic reticulum stress and cause spondyloepiphyseal dysplasia. Nat Commun 2024; 15:3655. [PMID: 38688929 PMCID: PMC11061129 DOI: 10.1038/s41467-024-47898-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Affiliation(s)
- Ophélie Gourgas
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Gabrielle Lemire
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Alison J Eaton
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- University of Alberta, Edmonton, AB, Canada
| | - Sultanah Alshahrani
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Jingjing Li
- Department of Medicine, McGill University, Montreal, QC, Canada
| | | | | | | | | | - Kym M Boycott
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Monzur Murshed
- Department of Medicine, McGill University, Montreal, QC, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada.
- Shriners Hospitals for Children - Canada, Montreal, QC, Canada.
| |
Collapse
|
2
|
Gourgas O, Lemire G, Eaton AJ, Alshahrani S, Duker AL, Li J, Carroll RS, Mackenzie S, Nikkel SM, Bober MB, Boycott KM, Murshed M. Specific heterozygous variants in MGP lead to endoplasmic reticulum stress and cause spondyloepiphyseal dysplasia. Nat Commun 2023; 14:7054. [PMID: 37923733 PMCID: PMC10624854 DOI: 10.1038/s41467-023-41651-6] [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: 01/07/2022] [Accepted: 09/13/2023] [Indexed: 11/06/2023] Open
Abstract
Matrix Gla protein (MGP) is a vitamin K-dependent post-translationally modified protein, highly expressed in vascular and cartilaginous tissues. It is a potent inhibitor of extracellular matrix mineralization. Biallelic loss-of-function variants in the MGP gene cause Keutel syndrome, an autosomal recessive disorder characterized by widespread calcification of various cartilaginous tissues and skeletal and vascular anomalies. In this study, we report four individuals from two unrelated families with two heterozygous variants in MGP, both altering the cysteine 19 residue to phenylalanine or tyrosine. These individuals present with a spondyloepiphyseal skeletal dysplasia characterized by short stature with a short trunk, diffuse platyspondyly, midface retrusion, progressive epiphyseal anomalies and brachytelephalangism. We investigated the cellular and molecular effects of one of the heterozygous deleterious variants (C19F) using both cell and genetically modified mouse models. Heterozygous 'knock-in' mice expressing C19F MGP recapitulate most of the skeletal anomalies observed in the affected individuals. Our results suggest that the main underlying mechanism leading to the observed skeletal dysplasia is endoplasmic reticulum stress-induced apoptosis of the growth plate chondrocytes. Overall, our findings support that heterozygous variants in MGP altering the Cys19 residue cause autosomal dominant spondyloepiphyseal dysplasia, a condition distinct from Keutel syndrome both clinically and molecularly.
Collapse
Affiliation(s)
- Ophélie Gourgas
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Gabrielle Lemire
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Alison J Eaton
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- University of Alberta, Edmonton, AB, Canada
| | - Sultanah Alshahrani
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Jingjing Li
- Department of Medicine, McGill University, Montreal, QC, Canada
| | | | | | | | | | - Kym M Boycott
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Monzur Murshed
- Department of Medicine, McGill University, Montreal, QC, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada.
- Shriners Hospitals for Children - Canada, Montreal, QC, Canada.
| |
Collapse
|
3
|
Parashar A, Gourgas O, Lau K, Li J, Muiznieks L, Sharpe S, Davis E, Cerruti M, Murshed M. Elastin calcification in in vitro models and its prevention by MGP's N-terminal peptide. J Struct Biol 2021; 213:107637. [PMID: 33059036 DOI: 10.1016/j.jsb.2020.107637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 06/01/2020] [Revised: 10/01/2020] [Accepted: 10/03/2020] [Indexed: 01/17/2023]
Abstract
Medial calcification has been associated with diabetes, chronic kidney disease, and genetic disorders like pseudoxanthoma elasticum. Recently, we showed that genetic reduction of arterial elastin content reduces the severity of medial calcification in matrix Gla protein (MGP)-deficient and Eln haploinsufficient Mgp-/-;Eln+/- mice. This study suggests that there might be a direct effect of elastin amount on medial calcification. We studied this using novel in vitro systems, which are based on elastin or elastin-like polypeptides. We first examined the mineral deposition properties of a transfected pigmented epithelial cell line that expresses elastin and other elastic lamina proteins. When grown in inorganic phosphate-supplemented medium, these cells deposited calcium phosphate minerals, which could be prevented by an N'-terminal peptide of MGP (m3pS) carrying phosphorylated serine residues. We next confirmed these findings using a cell-free elastin-like polypeptide (ELP3) scaffold, where the peptide prevented mineral maturation. Overall, this work describes a novel cell culture model for elastocalcinosis and examines the inhibition of mineral deposition by the m3pS peptide in this and a cell-free elastin-based scaffold. Our study provides strong evidence suggesting the critical functional roles of MGP's phosphorylated serine residues in the prevention of elastin calcification and proposes a possible mechanism of their action.
Collapse
Affiliation(s)
- Abhinav Parashar
- Faculty of Dentistry, McGill University, Montreal, Québec, Canada
| | - Ophélie Gourgas
- Department of Medicine, McGill University, Montreal, Québec, Canada
| | - Kirk Lau
- Materials Engineering, McGill University, Montreal, Québec, Canada
| | - Jingjing Li
- Department of Medicine, McGill University, Montreal, Québec, Canada
| | - Lisa Muiznieks
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Elaine Davis
- Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
| | - Marta Cerruti
- Materials Engineering, McGill University, Montreal, Québec, Canada
| | - Monzur Murshed
- Faculty of Dentistry, McGill University, Montreal, Québec, Canada; Department of Medicine, McGill University, Montreal, Québec, Canada; Shriners Hospital for Children, Montreal, Quebec, Canada.
| |
Collapse
|
4
|
Gourgas O, Khan K, Schwertani A, Cerruti M. Differences in mineral composition and morphology between men and women in aortic valve calcification. Acta Biomater 2020; 106:342-350. [PMID: 32092430 DOI: 10.1016/j.actbio.2020.02.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 01/31/2020] [Accepted: 02/18/2020] [Indexed: 01/02/2023]
Abstract
Aortic valve calcification leads to the deposition of calcium phosphate minerals in the extracellular matrix of the aortic valve leaflets. The mineral deposits can severely narrow the opening of the aortic valve, leading to aortic stenosis. There are no therapies to halt or slow down disease progression and the mechanisms governing aortic valve calcification are still poorly understood. Recently, several studies have shown that for the same aortic stenosis severity, women present significantly lower calcification loads than men. The cause of this sex-related difference is unknown. To understand this difference, we analyzed mineral deposits from surgically excised calcified human aortic valves with different material characterization techniques. We find profound differences in mineral composition and morphology between sexes, which strongly suggest that minerals form slower in women than in men and follow a different mineralization pathway. This finding paves the way for new approaches specifically geared towards men or women in the diagnosis and treatment of aortic valve calcification. STATEMENT OF SIGNIFICANCE: Aortic valve calcification is a health disorder with increasing prevalence and high morbidity and mortality. Currently there is no approved effective treatment; the only available therapeutic option is invasive valve replacement, to which not all patients are suited. The main reason for such lack of treatment options is our lack of understanding of the calcification mechanism. In this study, we show profound differences in mineral composition and morphology between sexes, suggesting that aortic valve calcification follows different mineralization pathways in men and women. These findings pave the way for new approaches specifically geared towards men or women in the diagnosis and treatment of aortic valve calcification.
Collapse
|
5
|
Gourgas O, Cole GB, Muiznieks LD, Sharpe S, Cerruti M. Effect of the Ionic Concentration of Simulated Body Fluid on the Minerals Formed on Cross-Linked Elastin-Like Polypeptide Membranes. Langmuir 2019; 35:15364-15375. [PMID: 31729882 DOI: 10.1021/acs.langmuir.9b02542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Deposition of calcium phosphate minerals on the elastin-rich medial layers of arteries can cause severe cardiovascular complications. There are no available treatments for medial calcification, and the mechanism of mineral formation on elastin layers is still unknown. We recently developed an in vitro model of medial calcification using cross-linked elastin-like polypeptide (ELP) membranes immersed in simulated body fluid (SBF). While mineral phase evolution matched that observed in a mouse model of medial calcification, the long incubation required was a practical limitation of this model. Using higher SBF ion concentrations could be a solution to speed up mineral deposition, but its effect on the mineralization process is still not well understood. Here we analyze mineral formation and phase transformation on ELP membranes immersed in high concentration SBF. We show that while mineral deposition is significantly accelerated in these conditions, the chemistry and morphology of the minerals deposited on the ELP membranes and the overall mineralization process are strongly affected. Overall, this work suggests that while the use of low concentration SBF in this in vitro model is more appropriate to study medial calcification associated with the loss of calcification inhibitors, higher SBF ion concentration may be more relevant to study medial calcification in patients with life-threatening diseases such as chronic kidney disease.
Collapse
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| | - Gregory B Cole
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Lisa D Muiznieks
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
| | - Simon Sharpe
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| |
Collapse
|
6
|
Khan K, Albanese I, Yu B, Shalal Y, Al-Kindi H, Alaws H, Tardif JC, Gourgas O, Cerutti M, Schwertani A. Urotensin II, urotensin-related peptide, and their receptor in aortic valve stenosis. J Thorac Cardiovasc Surg 2019; 161:e1-e15. [PMID: 31679703 DOI: 10.1016/j.jtcvs.2019.09.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/08/2019] [Accepted: 09/09/2019] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Aortic valve stenosis (AVS) is the most common cause of surgical valve replacement worldwide. The vasoactive peptide urotensin II (UII) is upregulated in atherosclerosis and several other cardiovascular diseases; however, its role in the pathogenesis of AVS remains to be determined. Here, we investigated the expression of UII, urotensin-related peptide (URP), and the urotensin receptor (UT) and the role this system plays in AVS. METHODS Immunohistochemistry and reverse-transcriptase polymerase chain reaction were used to examine the cellular localization and mRNA expression, of UII, URP, and UT in calcified and noncalcified aortic valves. Human aortic valve interstitial cells were isolated from normal valves and treated with UII or URP, and changes in cell proliferation, cholesterol efflux, calcium deposition, and β-catenin translocation were assessed. RESULTS The mRNA expression of UII, URP, and UT was significantly greater in patients with AVS. There was abundant presence of UII, URP, and UT immunostaining in diseased compared with nondiseased valves and correlated significantly with presence of calcification (P < .0001) and fibrosis (P < .0001). Treating human aortic valve interstitial cells with UII or URP significantly increased cell proliferation (P < .0001) and decreased cholesterol efflux (P = .0011 and P = .0002, respectively). UII also significantly reduced ABCA1 protein expression (P = .0457) and increased β-catenin nuclear translocation (P < .0001) and mineral deposition (P < .0001). CONCLUSIONS Together, these data suggest that the urotensin system plays a role in the pathogenesis of AVS and warrants further investigation.
Collapse
Affiliation(s)
- Kashif Khan
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Isabella Albanese
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Bin Yu
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Yousif Shalal
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Hamood Al-Kindi
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Hossney Alaws
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | | | - Ophélie Gourgas
- Department of Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Marta Cerutti
- Department of Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Adel Schwertani
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, Quebec, Canada.
| |
Collapse
|
7
|
Guerra ED, Baakdah F, Gourgas O, Tam M, Stevenson MM, Georges E, Bohle DS, Cerruti M. Inorganic ions on hemozoin surface provide a glimpse into Plasmodium biology. J Inorg Biochem 2019; 200:110808. [PMID: 31487576 DOI: 10.1016/j.jinorgbio.2019.110808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/23/2019] [Accepted: 08/24/2019] [Indexed: 11/30/2022]
Abstract
In malaria, Plasmodium parasites produce hemozoin (Hz) as a route to detoxify free heme released from the catabolism of hemoglobin. Hz isolated from the parasites is encapsulated in an organic layer constituted by parasite and host components. This organic coating may play a role in Hz formation and in the immunomodulatory properties attributed to Hz, and they may influence the mode of action of antimalarials that block Hz formation. In this work, we analyze the organic layer adhered to Hz, and find Na, Cl, Si, Ca and P present, in addition to organic material. Our results suggest that Na, Cl, and P adsorb during Hz release from the red blood cells, while Si and Ca derive from components present during Hz biomineralization within the digestive vacuole of the parasite. Overall, we show that inorganic elements associated with Hz surface provide insights into the biological functions of Plasmodium parasites.
Collapse
Affiliation(s)
- E Danae Guerra
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 2B2, Canada
| | - Fadi Baakdah
- Institute of Parasitology, McGill University, Ste Anne de Bellevue, Quebec H9X 3V9, Canada
| | - Ophélie Gourgas
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 2B2, Canada
| | - Mifong Tam
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Mary M Stevenson
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada; Department of Medicine, McGill University, Montreal, Quebec H4A 3J1, Canada
| | - Elias Georges
- Institute of Parasitology, McGill University, Ste Anne de Bellevue, Quebec H9X 3V9, Canada
| | - D Scott Bohle
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 2B2, Canada.
| |
Collapse
|
8
|
Gourgas O, Muiznieks LD, Bello DG, Nanci A, Sharpe S, Cerruti M. Cross-Linked Elastin-like Polypeptide Membranes as a Model for Medial Arterial Calcification. Biomacromolecules 2019; 20:2625-2636. [DOI: 10.1021/acs.biomac.9b00417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Lisa D. Muiznieks
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Dainelys Guadarrama Bello
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Antonio Nanci
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| |
Collapse
|
9
|
Gourgas O, Marulanda J, Zhang P, Murshed M, Cerruti M. Multidisciplinary Approach to Understand Medial Arterial Calcification. Arterioscler Thromb Vasc Biol 2018; 38:363-372. [PMID: 29217507 DOI: 10.1161/atvbaha.117.309808] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 11/22/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Vascular calcification significantly increases morbidity in life-threatening diseases, and no treatments are available because of lack of understanding of the underlying molecular mechanism. Here, we study the physicochemical details of mineral nucleation and growth in an animal model that faithfully recapitulates medial arterial calcification in humans, to understand how pathological calcification is initiated on the vascular extracellular matrix. APPROACH AND RESULTS MGP (matrix Gla protein) is a potent mineralization inhibitor. We study the evolution of medial calcification in MGP-deficient mice over the course of 5 weeks using a combination of material science techniques and find that mineral composition and crystallinity evolve over time and space. We show that calcium is adsorbed first and then amorphous calcium phosphate and octacalcium phosphate forms, which then transform into hydroxyapatite and carbonated apatite. These events are repeated after each nucleation event, providing a snapshot of the overall mineral evolution at each time point analyzed. CONCLUSIONS Our results show that an interdisciplinary approach combining animal models and materials science can provide insights into the mechanism of vascular calcification and suggest the importance of analyzing mineral phases, rather than just overall mineralization extent, to diagnose and possibly prevent disease development.
Collapse
Affiliation(s)
- Ophélie Gourgas
- From the Materials Engineering (O.G., P.Z., M.C.), Faculty of Dentistry (J.M., M.M.), Department of Medicine (M.M.), and Shriners Hospital for Children (M.M.), McGill University, Montreal, Quebec, Canada
| | - Juliana Marulanda
- From the Materials Engineering (O.G., P.Z., M.C.), Faculty of Dentistry (J.M., M.M.), Department of Medicine (M.M.), and Shriners Hospital for Children (M.M.), McGill University, Montreal, Quebec, Canada
| | - Peng Zhang
- From the Materials Engineering (O.G., P.Z., M.C.), Faculty of Dentistry (J.M., M.M.), Department of Medicine (M.M.), and Shriners Hospital for Children (M.M.), McGill University, Montreal, Quebec, Canada
| | - Monzur Murshed
- From the Materials Engineering (O.G., P.Z., M.C.), Faculty of Dentistry (J.M., M.M.), Department of Medicine (M.M.), and Shriners Hospital for Children (M.M.), McGill University, Montreal, Quebec, Canada
| | - Marta Cerruti
- From the Materials Engineering (O.G., P.Z., M.C.), Faculty of Dentistry (J.M., M.M.), Department of Medicine (M.M.), and Shriners Hospital for Children (M.M.), McGill University, Montreal, Quebec, Canada.
| |
Collapse
|
10
|
Latreille PL, Alsharif S, Gourgas O, Tehrani SF, Roullin VG, Banquy X. Release kinetics from nano-inclusion-based and affinity-based hydrogels: A comparative study. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
11
|
Yu B, Hafiane A, Thanassoulis G, Ott L, Filwood N, Cerruti M, Gourgas O, Shum-Tim D, Al Kindi H, de Varennes B, Alsheikh-Ali A, Genest J, Schwertani A. Lipoprotein(a) Induces Human Aortic Valve Interstitial Cell Calcification. JACC Basic Transl Sci 2017; 2:358-371. [PMID: 30062157 PMCID: PMC6034440 DOI: 10.1016/j.jacbts.2017.03.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/30/2017] [Accepted: 03/30/2017] [Indexed: 12/22/2022]
Abstract
Lp(a) significantly increased alkaline phosphatase activity, phosphate and calcium content, and matrix vesicle formation and induced apoptosis and calcification of normal human aortic valve interstitial cells. The type of minerals induced by Lp(a) resembles that seen in calcified human aortic valves as shown by Raman spectroscopy. Lp(a)-induced calcification of human aortic valve interstitial cells is mediated by activation of MAPK38, GSK3β, and Wnt signaling. Inhibition of GSK3β and MAPK38 significantly reduced lipoprotein(a)-induced aortic valve interstitial cell calcification. Lp(a)is abundant in calcified aortic valves, and lipoprotein(a) immunoreactivity colocalized with that of oxidized phospholipids.
Lipoprotein(a), or Lp(a), significantly increased alkaline phosphatase activity, release of phosphate, calcium deposition, hydroxyapatite, cell apoptosis, matrix vesicle formation, and phosphorylation of signal transduction proteins; increased expression of chondro-osteogenic mediators; and decreased SOX9 and matrix Gla protein (p < 0.001). Inhibition of MAPK38 and GSK3β significantly reduced Lp(a)-induced calcification of human aortic valve interstitial cells (p < 0.001). There was abundant presence of Lp(a) and E06 immunoreactivity in diseased human aortic valves. The present study demonstrates a causal effect for Lp(a) in aortic valve calcification and suggests that interfering with the Lp(a)pathway could provide a novel therapeutic approach in the management of this debilitating disease.
Collapse
Key Words
- ALP, alkaline phosphatase
- BMP, bone morphogenetic protein
- FWHM, full width half maximum
- HAVIC, human aortic valve interstitial cell
- LDL, low-density lipoprotein
- LOX-1, oxidized LDL receptor 1
- Lp(a), lipoprotein(a)
- MAPK, mitogen-activated protein kinase
- MGP, matrix Gla protein
- OxPL, oxidized phospholipid
- Raman spectroscopy
- apo(a), apolipoprotein(a)
- mRNA, messenger ribonucleic acid
- oxidized phospholipids
- real-time PCR
- stenosis
Collapse
Affiliation(s)
- Bin Yu
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Anouar Hafiane
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - George Thanassoulis
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Leah Ott
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Nial Filwood
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Marta Cerruti
- Department of Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Ophélie Gourgas
- Department of Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Dominique Shum-Tim
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Hamood Al Kindi
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Benoit de Varennes
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Alawi Alsheikh-Ali
- College of Medicine, Mohammed Bin Rashid University of Medical and Health Sciences, Dubai, United Arab Emirates
| | - Jacques Genest
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| | - Adel Schwertani
- Divisions of Cardiology and Cardiac Surgery, Department of Medicine, Surgery and Pathology, McGill University, Montreal, Quebec, Canada
| |
Collapse
|
12
|
Albanese I, Yu B, Al-Kindi H, Barratt B, Ott L, Al-Refai M, de Varennes B, Shum-Tim D, Cerruti M, Gourgas O, Rhéaume E, Tardif JC, Schwertani A. Role of Noncanonical Wnt Signaling Pathway in Human Aortic Valve Calcification. Arterioscler Thromb Vasc Biol 2016; 37:543-552. [PMID: 27932350 DOI: 10.1161/atvbaha.116.308394] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 11/28/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The mechanisms underlying the pathogenesis of aortic valve calcification remain unclear. With accumulating evidence demonstrating that valve calcification recapitulates bone development, the crucial roles of noncanonical Wnt ligands WNT5a, WNT5b, and WNT11 in osteogenesis make them critical targets in the study of aortic valve calcification. APPROACH AND RESULTS Using immunohistochemistry, real-time qPCR, Western blotting, and tissue culture, we examined the tissue distribution of WNT5a, WNT5b, and WNT11 in noncalcified and calcified aortic valves and their effects on human aortic valve interstitial cells (HAVICs). Only focal strong immunostaining for WNT5a was seen in and around areas of calcification. Abundant immunostaining for WNT5b and WNT11 was seen in inflammatory cells, fibrosis, and activated myofibroblasts in areas of calcified foci. There was significant correlation between WNT5b and WNT11 overall staining and presence of calcification, lipid score, fibrosis, and microvessels (P<0.05). Real-time qPCR and Western blotting revealed abundant expression of both Wnts in stenotic aortic valves, particularly in bicuspid valves. Incubation of HAVICs from noncalcified valves with the 3 noncanonical Wnts significantly increased cell apoptosis and calcification (P<0.05). Treatment of HAVICs with the mitogen-activated protein kinase-38β and GSK3β inhibitors significantly reduced their mineralization (P<0.01). Raman spectroscopy identified the inorganic phosphate deposits as hydroxyapatite and showed a significant increase in hydroxyapatite deposition in HAVICs in response to WNT5a and WNT11 (P<0.05). Similar crystallinity was seen in the deposits found in HAVICs treated with Wnts and in calcified human aortic valves. CONCLUSIONS These findings suggest a potential role for noncanonical Wnt signaling in the pathogenesis of aortic valve calcification.
Collapse
Affiliation(s)
- Isabella Albanese
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Bin Yu
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Hamood Al-Kindi
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Bianca Barratt
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Leah Ott
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Mohammad Al-Refai
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Benoit de Varennes
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Dominique Shum-Tim
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Marta Cerruti
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Ophélie Gourgas
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Eric Rhéaume
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Jean-Claude Tardif
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Adel Schwertani
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.).
| |
Collapse
|