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Durán-Sotuela A, Fernandez-Moreno M, Suárez-Ulloa V, Vázquez-García J, Relaño S, Hermida-Gómez T, Balboa-Barreiro V, Lourido-Salas L, Calamia V, Fernandez-Puente P, Ruiz-Romero C, Fernández-Tajes J, Vaamonde-García C, de Andrés MC, Oreiro N, Blanco FJ, Rego-Perez I. A meta-analysis and a functional study support the influence of mtDNA variant m.16519C on the risk of rapid progression of knee osteoarthritis. Ann Rheum Dis 2023:ard-2022-223570. [PMID: 37024296 DOI: 10.1136/ard-2022-223570] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 03/17/2023] [Indexed: 04/08/2023]
Abstract
OBJECTIVES To identify mitochondrial DNA (mtDNA) genetic variants associated with the risk of rapid progression of knee osteoarthritis (OA) and to characterise their functional significance using a cellular model of transmitochondrial cybrids. METHODS Three prospective cohorts contributed participants. The osteoarthritis initiative (OAI) included 1095 subjects, the Cohort Hip and Cohort Knee included 373 and 326 came from the PROspective Cohort of Osteoarthritis from A Coruña. mtDNA variants were screened in an initial subset of 450 subjects from the OAI by in-depth sequencing of mtDNA. A meta-analysis of the three cohorts was performed. A model of cybrids was constructed to study the functional consequences of harbouring the risk mtDNA variant by assessing: mtDNA copy number, mitochondrial biosynthesis, mitochondrial fission and fusion, mitochondrial reactive oxygen species (ROS), oxidative stress, autophagy and a whole transcriptome analysis by RNA-sequencing. RESULTS mtDNA variant m.16519C is over-represented in rapid progressors (combined OR 1.546; 95% CI 1.163 to 2.054; p=0.0027). Cybrids with this variant show increased mtDNA copy number and decreased mitochondrial biosynthesis; they produce higher amounts of mitochondrial ROS, are less resistant to oxidative stress, show a lower expression of the mitochondrial fission-related gene fission mitochondrial 1 and an impairment of autophagic flux. In addition, its presence modulates the transcriptome of cybrids, especially in terms of inflammation, where interleukin 6 emerges as one of the most differentially expressed genes. CONCLUSIONS The presence of the mtDNA variant m.16519C increases the risk of rapid progression of knee OA. Among the most modulated biological processes associated with this variant, inflammation and negative regulation of cellular process stand out. The design of therapies based on the maintenance of mitochondrial function is recommended.
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Affiliation(s)
- Alejandro Durán-Sotuela
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Mercedes Fernandez-Moreno
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Victoria Suárez-Ulloa
- Grupo de Avances en Telemedicina e Informática Sanitaria (ATIS), Plataforma de Bioinformática, Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Jorge Vázquez-García
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Sara Relaño
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Tamara Hermida-Gómez
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
- Grupo GBTTC-CHUAC, Centro de Investigación Biomédica en Red Bioingeniería Biomateriales y Nanomedicina, Madrid, Spain
| | - Vanesa Balboa-Barreiro
- Unidad de apoyo a la investigación, Grupo de Investigación en Enfermería y Cuidados en Salud, Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Lucia Lourido-Salas
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Valentina Calamia
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Patricia Fernandez-Puente
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Cristina Ruiz-Romero
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
- Grupo GBTTC-CHUAC, Centro de Investigación Biomédica en Red Bioingeniería Biomateriales y Nanomedicina, Madrid, Spain
| | - Juan Fernández-Tajes
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Carlos Vaamonde-García
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - María C de Andrés
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
| | - Natividad Oreiro
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
- Grupo GBTTC-CHUAC, Centro de Investigación Biomédica en Red Bioingeniería Biomateriales y Nanomedicina, Madrid, Spain
| | - Francisco J Blanco
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
- Grupo de Investigación en Reumatología y Salud (GIR-S), Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Facultad de Fisioterapia, Campus de Oza, Universidade da Coruña, A Coruna, Galicia, Spain
| | - Ignacio Rego-Perez
- Grupo de Investigación en Reumatología (GIR), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), Instituto de Investigación Biomédica de A Coruña, A Coruna, Galicia, Spain
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Dawod PGA, Jancic J, Marjanovic A, Brankovic M, Jankovic M, Samardzic J, Gamil Anwar Dawod A, Novakovic I, Abdel Motaleb FI, Radlovic V, Kostic VS, Nikolic D. Mutational Analysis and mtDNA Haplogroup Characterization in Three Serbian Cases of Mitochondrial Encephalomyopathies and Literature Review. Diagnostics (Basel) 2021; 11:1969. [PMID: 34829316 PMCID: PMC8620769 DOI: 10.3390/diagnostics11111969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/15/2022] Open
Abstract
Mitochondrial encephalomyopathies (MEMP) are heterogeneous multisystem disorders frequently associated with mitochondrial DNA (mtDNA) mutations. Clinical presentation varies considerably in age of onset, course, and severity up to death in early childhood. In this study, we performed molecular genetic analysis for mtDNA pathogenic mutation detection in Serbian children, preliminary diagnosed clinically, biochemically and by brain imaging for mitochondrial encephalomyopathies disorders. Sanger sequencing analysis in three Serbian probands revealed two known pathogenic mutations. Two probands had a heteroplasmic point mutation m.3243A>G in the MT-TL1 gene, which confirmed mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episode syndrome (MELAS), while a single case clinically manifested for Leigh syndrome had an almost homoplasmic (close to 100%) m.8993T>G mutation in the MT-ATP6 gene. After full mtDNA MITOMASTER analysis and PhyloTree build 17, we report MELAS' association with haplogroups U and H (U2e and H15 subclades); likewise, the mtDNA-associated Leigh syndrome proband shows a preference for haplogroup H (H34 subclade). Based on clinical-genetic correlation, we suggest that haplogroup H may contribute to the mitochondrial encephalomyopathies' phenotypic variability of the patients in our study. We conclude that genetic studies for the distinctive mitochondrial encephalomyopathies should be well-considered for realizing clinical severity and possible outcomes.
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Affiliation(s)
- Phepy G. A. Dawod
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Cairo 11591, Egypt;
| | - Jasna Jancic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
- Clinic of Neurology and Psychiatry of Children and Youth, 11000 Belgrade, Serbia
| | - Ana Marjanovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
| | - Marija Brankovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
| | - Milena Jankovic
- Neurology Clinic, Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Janko Samardzic
- Institute of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Ayman Gamil Anwar Dawod
- Internal Medicine, Hepatogastroenterology and Endoscopy Department, Faculty of Medicine, Ain Shams University, Cairo 11591, Egypt;
| | - Ivana Novakovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
| | - Fayda I. Abdel Motaleb
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Cairo 11591, Egypt;
| | - Vladimir Radlovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
- Pediatric Surgery Department, University Children’s Hospital, 11000 Belgrade, Serbia
| | - Vladimir S. Kostic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
- Neurology Clinic, Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Dejan Nikolic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (P.G.A.D.); (J.J.); (A.M.); (M.B.); (I.N.); (V.R.); (V.S.K.)
- Physical Medicine and Rehabilitation Department, University Children’s Hospital, Tirsova 10, 11000 Belgrade, Serbia
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