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Politiek FA, Turkenburg M, Henneman L, Ofman R, Waterham HR. Molecular and cellular consequences of mevalonate kinase deficiency. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167177. [PMID: 38636615 DOI: 10.1016/j.bbadis.2024.167177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/06/2024] [Accepted: 04/14/2024] [Indexed: 04/20/2024]
Abstract
Mevalonate kinase deficiency (MKD) is an autosomal recessive metabolic disorder associated with recurrent autoinflammatory episodes. The disorder is caused by bi-allelic loss-of-function variants in the MVK gene, which encodes mevalonate kinase (MK), an early enzyme in the isoprenoid biosynthesis pathway. To identify molecular and cellular consequences of MKD, we studied primary fibroblasts from severely affected patients with mevalonic aciduria (MKD-MA) and more mildly affected patients with hyper IgD and periodic fever syndrome (MKD-HIDS). As previous findings indicated that the deficient MK activity in MKD impacts protein prenylation in a temperature-sensitive manner, we compared the subcellular localization and activation of the small Rho GTPases RhoA, Rac1 and Cdc42 in control, MKD-HIDS and MKD-MA fibroblasts cultured at physiological and elevated temperatures. This revealed a temperature-induced altered subcellular localization and activation in the MKD cells. To study if and how the temperature-induced ectopic activation of these signalling proteins affects cellular processes, we performed comparative transcriptome analysis of control and MKD-MA fibroblasts cultured at 37 °C or 40 °C. This identified cell cycle and actin cytoskeleton organization as respectively most down- and upregulated gene clusters. Further studies confirmed that these processes were affected in fibroblasts from both patients with MKD-MA and MKD-HIDS. Finally, we found that, similar to immune cells, the MK deficiency causes metabolic reprogramming in MKD fibroblasts resulting in increased expression of genes involved in glycolysis and the PI3K/Akt/mTOR pathway. We postulate that the ectopic activation of small GTPases causes inappropriate signalling contributing to the molecular and cellular aberrations observed in MKD.
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Affiliation(s)
- Frouwkje A Politiek
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Marjolein Turkenburg
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Linda Henneman
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, the Netherlands; Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Rob Ofman
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Hans R Waterham
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Amsterdam Reproduction & Development, Amsterdam, the Netherlands.
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2
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Politiek FA, Turkenburg M, Ofman R, Waterham HR. Mevalonate kinase-deficient THP-1 cells show a disease-characteristic pro-inflammatory phenotype. Front Immunol 2024; 15:1379220. [PMID: 38550596 PMCID: PMC10972877 DOI: 10.3389/fimmu.2024.1379220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 02/29/2024] [Indexed: 04/02/2024] Open
Abstract
Objective Bi-allelic pathogenic variants in the MVK gene, which encodes mevalonate kinase (MK), an essential enzyme in isoprenoid biosynthesis, cause the autoinflammatory metabolic disorder mevalonate kinase deficiency (MKD). We generated and characterized MK-deficient monocytic THP-1 cells to identify molecular and cellular mechanisms that contribute to the pro-inflammatory phenotype of MKD. Methods Using CRISPR/Cas9 genome editing, we generated THP-1 cells with different MK deficiencies mimicking the severe (MKD-MA) and mild end (MKD-HIDS) of the MKD disease spectrum. Following confirmation of previously established disease-specific biochemical hallmarks, we studied the consequences of the different MK deficiencies on LPS-stimulated cytokine release, glycolysis versus oxidative phosphorylation rates, cellular chemotaxis and protein kinase activity. Results Similar to MKD patients' cells, MK deficiency in the THP-1 cells caused a pro-inflammatory phenotype with a severity correlating with the residual MK protein levels. In the MKD-MA THP-1 cells, MK protein levels were barely detectable, which affected protein prenylation and was accompanied by a profound pro-inflammatory phenotype. This included a markedly increased LPS-stimulated release of pro-inflammatory cytokines and a metabolic switch from oxidative phosphorylation towards glycolysis. We also observed increased activity of protein kinases that are involved in cell migration and proliferation, and in innate and adaptive immune responses. The MKD-HIDS THP-1 cells had approximately 20% residual MK activity and showed a milder phenotype, which manifested mainly upon LPS stimulation or exposure to elevated temperatures. Conclusion MK-deficient THP-1 cells show the biochemical and pro-inflammatory phenotype of MKD and are a good model to study underlying disease mechanisms and therapeutic options of this autoinflammatory disorder.
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Affiliation(s)
- Frouwkje A. Politiek
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Marjolein Turkenburg
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
| | - Rob Ofman
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
| | - Hans R. Waterham
- Laboratory Genetic Metabolic Diseases, Department of Laboratory Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
- Amsterdam Reproduction & Development, Amsterdam, Netherlands
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Politiek FA, Turkenburg M, Koster J, Ofman R, Waterham HR. Identification of FDA-approved drugs that increase mevalonate kinase in hyper IgD syndrome. J Inherit Metab Dis 2024; 47:302-316. [PMID: 38131282 DOI: 10.1002/jimd.12698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/13/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023]
Abstract
Mevalonate kinase deficiency (MKD) is an autoinflammatory metabolic disorder caused by bi-allelic loss-of-function variants in the MVK gene, resulting in decreased activity of the encoded mevalonate kinase (MK). Clinical presentation ranges from the severe early-lethal mevalonic aciduria to the milder hyper-IgD syndrome (MKD-HIDS), and is in the majority of patients associated with recurrent inflammatory episodes with often unclear cause. Previous studies with MKD-HIDS patient cells indicated that increased temperature, as caused by fever during an inflammatory episode, lowers the residual MK activity, which causes a temporary shortage of non-sterol isoprenoids that promotes the further development of inflammation. Because an increase of the residual MK activity is expected to make MKD-HIDS patients less sensitive to developing inflammatory episodes, we established a cell-based screen that can be used to identify compounds and/or therapeutic targets that promote this increase. Using a reporter HeLa cell line that stably expresses the most common MKD-HIDS variant, MK-V377I, C-terminally tagged with bioluminescent NanoLuc luciferase (nLuc), we screened the Prestwick Chemical Library®, which includes 1280 FDA-approved compounds. Multiple compounds increased MK-V377I-nLuc bioluminescence, including steroids (i.e., glucocorticoids, estrogens, and progestogens), statins and antineoplastic drugs. The glucocorticoids increased MK-V377I-nLuc bioluminescence through glucocorticoid receptor signaling. Subsequent studies in MKD-HIDS patient cells showed that the potent glucocorticoid clobetasol propionate increases gene transcription of MVK and other genes regulated by the transcription factor sterol regulatory element-binding protein 2 (SREBP-2). Our results suggest that increasing the flux through the isoprenoid biosynthesis pathway by targeting the glucocorticoid receptor or SREBP-2 could be a potential therapeutic strategy in MKD-HIDS.
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Affiliation(s)
- Frouwkje A Politiek
- Department of Laboratory Medicine, Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Marjolein Turkenburg
- Department of Laboratory Medicine, Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
| | - Janet Koster
- Department of Laboratory Medicine, Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
| | - Rob Ofman
- Department of Laboratory Medicine, Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
| | - Hans R Waterham
- Department of Laboratory Medicine, Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development, Amsterdam, the Netherlands
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Cetin Gedik K, Arici ZS, Kul Cinar O, Garcia-Bournissen F, Romano M, Demirkaya E. Practical Approach to Diagnosis and Management of IL-1-Mediated Autoinflammatory Diseases (CAPS, TRAPS, MKD, and DIRA). Paediatr Drugs 2024; 26:113-126. [PMID: 38376736 DOI: 10.1007/s40272-023-00615-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/11/2023] [Indexed: 02/21/2024]
Abstract
Systemic autoinflammatory diseases (SAIDs) are a group of rare genetic and nongenetic immune dysregulatory disorders associated with high morbidity and mortality if left untreated. Therefore, early diagnosis and initiation of targeted treatment is vital in SAID patients to control the disease activity and prevent long-term immune-mediated damage. A specific group of genetically defined SAIDs is associated with increased inflammasome-mediated production of active interleukin (IL)-1. Even though progress in immunobiology and genetics has brought forth diagnostic tools and novel treatments that have been described in the literature extensively, many challenges remain in the clinical setting. Some challenges that health care providers may face on a day-to-day basis include the requirement of a multidisciplinary approach due to the complexity of these diseases, limited evidence-based treatment options, and barriers to access available therapies. Primarily, IL-1 inhibitors anakinra, canakinumab, and rilonacept are used to control the inflammation in these patients, with the goal of achieving sustainable remission. Recently published provisional points to consider from the European Alliance of Associations for Rheumatology (EULAR) and American College of Rheumatology (ACR) provide diagnosis, management, and monitoring recommendations for four IL-1-mediated autoinflammatory diseases: cryopyrin-associated periodic syndromes (CAPS), tumour necrosis factor receptor-associated periodic syndrome (TRAPS), mevalonate kinase deficiency (MKD), and deficiency of the IL-1 receptor antagonist (DIRA). The goal of this paper is to aid health care professionals by providing a practical approach to diagnosis and management of these four IL-1 mediated SAIDs on the basis of the recent EULAR/ACR recommendations.
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Affiliation(s)
- Kader Cetin Gedik
- Division of Pediatric Rheumatology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA.
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| | - Zehra Serap Arici
- Division of Rheumatology, Malatya Training and Research Hospital, Malatya, Turkey
| | - Ovgu Kul Cinar
- Department of Paediatric Rheumatology, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London, WC1N 3JH, UK
| | - Facundo Garcia-Bournissen
- Department of Pediatrics, Division of Pediatric Pharmacology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, N6A 5W9, Canada
| | - Micol Romano
- Department of Pediatrics, Division of Pediatric Pharmacology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, N6A 5W9, Canada
- Canadian Behcet and Autoinflammatory Disease Center (CAN-BE-AID), University of Western Ontario, London, ON, N6A 4V2, Canada
| | - Erkan Demirkaya
- Department of Pediatrics, Division of Pediatric Pharmacology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, N6A 5W9, Canada
- Canadian Behcet and Autoinflammatory Disease Center (CAN-BE-AID), University of Western Ontario, London, ON, N6A 4V2, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, N6A 5W9, Canada
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Li Y, Lu M. Tocilizumab for treating mevalonate kinase deficiency and TNF receptor-associated periodic syndrome: a case series and literature review. Pediatr Rheumatol Online J 2024; 22:11. [PMID: 38183017 PMCID: PMC10768362 DOI: 10.1186/s12969-023-00952-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Mevalonate kinase deficiency (MKD) and TNF receptor-associated periodic syndrome (TRAPS) are categorized as systemic autoinflammatory diseases (SAIDs), which are rare diseases characterized by early onset, severe conditions, and challenging diagnosis and treatment. Although different SAIDs have varying standard treatments, some SAIDs are poorly controlled after routine treatment, seriously affecting the growth and development of children and their quality of life. This study aims to provide more treatment strategies for SAIDs. CASE PRESENTATION We present two Chinese patients with MKD and TRAPS who were resistant to TNF- (tumor necrosis factor-) α blockade. After using etanercept, baricitinib, and glucocorticoid, patients with MKD and TRAPS still had periodic fever and rash. Due to the unavailability of IL-1 antagonists in the Chinese Mainland, we started administering intravenous tocilizumab (TCZ) at a dosage of 240 mg every three weeks. They had not experienced fever or rash after receiving one or two doses of TCZ. Before treatment with TCZ in the MKD patient, white blood cell (WBC) count, and TNF-α level were normal, erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) increased significantly, and IL-6 increased slightly. After treatment with TCZ, ESR and CRP levels returned to normal; however, IL-6 increased occasionally. In the TRAPS patient, ESR, CRP, WBC, IL-6, and TNF-α levels were increased significantly. After TCZ treatment, ESR, CRP, WBC, IL-6, and TNF-α levels returned to normal. The two patients were treated with TCZ for more than six months and achieved clinical and serological remission. Furthermore, they had no adverse reactions after injection of TCZ. CONCLUSION In the absence of IL-1 antagonists in mainland China, tocilizumab emerges as an alternative drug in SAIDs that are resistant to TNF-α blockade.
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Affiliation(s)
- Yandie Li
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Heath, NO.3333, Bin-sheng Road, 310052, Hangzhou, China
| | - Meiping Lu
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Heath, NO.3333, Bin-sheng Road, 310052, Hangzhou, China.
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Irwin M, Tanawattanacharoen VK, Turner A, Son MBF, Hale RC, Platt CD, Putra J, Schmidt BAR, Wasserman MG. A case of neonatal sweet syndrome associated with mevalonate kinase deficiency. Pediatr Rheumatol Online J 2023; 21:101. [PMID: 37700301 PMCID: PMC10496215 DOI: 10.1186/s12969-023-00887-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Sweet syndrome (SS), also known as acute febrile neutrophilic dermatosis, is an immunologic syndrome characterized by widespread neutrophilic infiltration. Histiocytoid Sweet syndrome (H-SS) is a histopathologic variant of SS. While SS most commonly occurs in adults, this case report discusses an infant patient who presented with H-SS. CASE PRESENTATION Through a multidisciplinary approach, this patient was also found to have very early onset inflammatory bowel disease (VEO-IBD) and Mevalonate kinase-associated disease (MKAD). While prior case studies have characterized an association between VEO-IBD and MKAD, there is no literature describing the association of all three diagnoses this case: H-SS, VEO-IBD and MKAD. Initiation of canakinumab in this patient resulted in successful control of the disease. CONCLUSIONS This case highlights the importance of a multidisciplinary approach to rare diagnoses, and collaboration during cases with significant diagnostic uncertainty.
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Affiliation(s)
- Margaret Irwin
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA.
| | - Veeraya K Tanawattanacharoen
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
| | - Amy Turner
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | - Mary Beth F Son
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
- Division of Rheumatology, Boston Children's Hospital, Boston, MA, USA
| | - Rebecca C Hale
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
- Division of Immunology, Boston Children's Hospital, Boston, MA, USA
| | - Craig D Platt
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
- Division of Immunology, Boston Children's Hospital, Boston, MA, USA
| | - Juan Putra
- Department of Pathology, Boston Children's Hospital, Boston, MA, USA
| | | | - Mollie G Wasserman
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
- Division of Hospital Medicine, Boston Children's Hospital, Boston, MA, USA
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7
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Li Y, Yu M, Lu M. Pathophysiology, clinical manifestations and current management of IL-1 mediated monogenic systemic autoinflammatory diseases, a literature review. Pediatr Rheumatol Online J 2022; 20:90. [PMID: 36253853 PMCID: PMC9575291 DOI: 10.1186/s12969-022-00728-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Systemic autoinflammatory diseases (SAIDs) are hyperinflammatory and immune-dysregulation conditions that present in childhood. This kind of disease is a rare disease with early-onset, severe condition and difficult diagnosis, which seriously affects the growth and development of children. Most children need a genetic diagnosis. However, with the limitation of access to genetic testing and the detection of somatic mutations, the diagnosis of SAIDs remains challenging. IL-1 is one of the important cytokines involved in the pathogenesis of SAIDs. Here we briefly review monogenic SAIDs mediated by aberrant IL-1 production, with the aim to further understand the pathogenesis, clinical manifestations and treatments of IL-1 mediated SAIDs. METHODS Literature reviews were performed using "PubMed" and "Web of Science" by searching for the terms "autoinflammatory diseases" and "IL-1". RESULTS Monogenic SAIDs mediated by IL-1 include MKD, FMF, TRAPS, PAAND, PAPA, CAPS, DIRA, Majeed syndrome, NAIAD, NLRC4-MAS, PFIT, APLAID. Monogenic SAIDs have early onset, various clinical manifestations and difficult diagnosis, so early recognition and early treatment can reduce the complications and enhance the quality of life. CONCLUSIONS There are many kinds of IL-1 mediated SAIDs. Pediatricians should be alert to SAIDs in the face of the patients with repeated fever, repeated rash and poor effect of routine treatment. The patients should be carried out with gene testing and treatment in time.
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Affiliation(s)
- Yandie Li
- grid.13402.340000 0004 1759 700XDepartment of Rheumatology Immunology and Allergy, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Heath, NO.57 Zhugan Lane, Yan-an Road, Hangzhou, 310003 China
| | - Meiping Yu
- grid.13402.340000 0004 1759 700XDepartment of Rheumatology Immunology and Allergy, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Heath, NO.57 Zhugan Lane, Yan-an Road, Hangzhou, 310003 China
| | - Meiping Lu
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Heath, NO.57 Zhugan Lane, Yan-an Road, Hangzhou, 310003, China.
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8
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Munoz MA, Skinner OP, Masle-Farquhar E, Jurczyluk J, Xiao Y, Fletcher EK, Kristianto E, Hodson MP, O'Donoghue SI, Kaur S, Brink R, Zahra DG, Deenick EK, Perry KA, Robertson AA, Mehr S, Hissaria P, Mulders-Manders CM, Simon A, Rogers MJ. Increased core body temperature exacerbates defective protein prenylation in mouse models of mevalonate kinase deficiency. J Clin Invest 2022; 132:160929. [PMID: 36189795 PMCID: PMC9525117 DOI: 10.1172/jci160929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
Mevalonate kinase deficiency (MKD) is characterized by recurrent fevers and flares of systemic inflammation, caused by biallelic loss-of-function mutations in MVK. The underlying disease mechanisms and triggers of inflammatory flares are poorly understood because of the lack of in vivo models. We describe genetically modified mice bearing the hypomorphic mutation p.Val377Ile (the commonest variant in patients with MKD) and amorphic, frameshift mutations in Mvk. Compound heterozygous mice recapitulated the characteristic biochemical phenotype of MKD, with increased plasma mevalonic acid and clear buildup of unprenylated GTPases in PBMCs, splenocytes, and bone marrow. The inflammatory response to LPS was enhanced in compound heterozygous mice and treatment with the NLRP3 inflammasome inhibitor MCC950 prevented the elevation of circulating IL-1β, thus identifying a potential inflammasome target for future therapeutic approaches. Furthermore, lines of mice with a range of deficiencies in mevalonate kinase and abnormal prenylation mirrored the genotype-phenotype relationship in human MKD. Importantly, these mice allowed the determination of a threshold level of residual enzyme activity, below which protein prenylation is impaired. Elevated temperature dramatically but reversibly exacerbated the deficit in the mevalonate pathway and the defective prenylation in vitro and in vivo, highlighting increased body temperature as a likely trigger of inflammatory flares.
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Affiliation(s)
- Marcia A Munoz
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Oliver P Skinner
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Etienne Masle-Farquhar
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Julie Jurczyluk
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Ya Xiao
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Emma K Fletcher
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Esther Kristianto
- Victor Chang Cardiac Innovation Centre, Victor Chang Cardiac Research Institute, Sydney, New South Wales, Australia
| | - Mark P Hodson
- School of Pharmacy, University of Queensland, Woolloongabba, Queensland, Australia
| | - Seán I O'Donoghue
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Sandeep Kaur
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Robert Brink
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - David G Zahra
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Elissa K Deenick
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Kristen A Perry
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Avril Ab Robertson
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland, Australia
| | - Sam Mehr
- Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Pravin Hissaria
- Royal Adelaide Hospital, SA Pathology and University of Adelaide, Adelaide, South Australia, Australia
| | - Catharina M Mulders-Manders
- Department of Internal Medicine, Radboudumc Expertise Centre for Immunodeficiency and Autoinflammation, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Anna Simon
- Department of Internal Medicine, Radboudumc Expertise Centre for Immunodeficiency and Autoinflammation, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Michael J Rogers
- Garvan Institute of Medical Research and School of Clinical Medicine, UNSW Sydney, Sydney, New South Wales, Australia
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9
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Dvaladze A, Tavares E, Di Scipio M, Nimmo G, Grudzinska-Pechhacker MK, Paton T, Tumber A, Li S, Eileen C, Ertl-Wagner B, Mamak E, Hoffmann G, Marshall CR, Haas D, Mayatepek E, Schulze A, Heon E, Vincent A. Deep Intronic Variant in MVK as a Cause for Mevalonic Aciduria Initially Presenting as Non-syndromic Retinitis Pigmentosa. Clin Genet 2022; 102:524-529. [PMID: 35916082 DOI: 10.1111/cge.14207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022]
Abstract
Non-syndromic retinitis pigmentosa (NSRP) is a clinically and genetically heterogeneous group of disorders characterized by progressive degeneration of the rod and cone photoreceptors, often leading to blindness. The evolving association of syndromic genes to cause NSRP and the increasing role of intronic variants in explaining missing heritability in genetic disorders present challenges in establishing conclusive clinical and genetic diagnoses. This study sought to identify and validate the causative genetic variant(s) in a 13-year-old male initially diagnosed with NSRP. Genome sequencing identified a pathogenic missense variant in MVK [NM_000431.3:c.803T>C (p. Ile268Thr)], in trans with a novel intronic variant predicted to create a new donor splice site (c.768+71C>A). Proband cDNA analysis confirmed the inclusion of the first 68 base pairs of intron 8 that resulted in a frameshift in MVK (r.768_769ins[768+1_768+68]) and significantly reduced the expression of reference transcript (17.6%). Patient re-phenotyping revealed ataxia, cerebellar atrophy, elevated urinary mevalonate and LTE4 , in keeping with mild mevalonic aciduria and associated syndromic retinitis pigmentosa. Leakage of reference transcript likely explains the milder phenotype observed. This is the first association of a deep intronic splice variant to cause MVK-related disorder. This report highlights the importance of variant validation and patient re-phenotyping in establishing accurate diagnosis in the era of genome sequencing.
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Affiliation(s)
- Anna Dvaladze
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada
| | - Erika Tavares
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada
| | - Matteo Di Scipio
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada
| | - Graeme Nimmo
- Clinical and Metabolic Genetics, HSC, Canada.,Fred A Litwin Family Centre for Genetic Medicine, The University Health Network, Toronto, Canada
| | - Monika K Grudzinska-Pechhacker
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada.,Department of Ophthalmology and Vision Sciences, HSC and University of Toronto, Canada
| | - Tara Paton
- The Centre for Applied Genomics, HSC, Canada
| | - Anupreet Tumber
- Department of Ophthalmology and Vision Sciences, HSC and University of Toronto, Canada
| | - Shuning Li
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada
| | - Christabel Eileen
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada
| | - Birgit Ertl-Wagner
- Division of Neuroradiology, HSC, Canada.,Department of Medical Imaging, University of Toronto, Canada
| | - Eva Mamak
- Department of Psychology, HSC, Canada
| | - Georg Hoffmann
- Neuropaediatrics and Paediatric Metabolic Medicine, University Hospital Heidelberg, Germany
| | | | - Dorothea Haas
- Neuropaediatrics and Paediatric Metabolic Medicine, University Hospital Heidelberg, Germany
| | - Ertan Mayatepek
- Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich Heine University, Dusseldorf, Germany
| | - Andreas Schulze
- Clinical and Metabolic Genetics, HSC, Canada.,Department of Paediatrics, University of Toronto, Canada.,Department of Biochemistry, University of Toronto, Canada
| | - Elise Heon
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada.,Department of Ophthalmology and Vision Sciences, HSC and University of Toronto, Canada
| | - Ajoy Vincent
- Genetics and Genome Biology, The Hospital for Sick Children (HSC), Toronto, Canada.,Department of Ophthalmology and Vision Sciences, HSC and University of Toronto, Canada
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10
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Twists and turns of the genetic story of mevalonate kinase-associated diseases: A review. Genes Dis 2022; 9:1000-1007. [PMID: 35685471 PMCID: PMC9170606 DOI: 10.1016/j.gendis.2021.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/19/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022] Open
Abstract
Mevalonate kinase (MK)-associated diseases encompass a broad spectrum of rare auto-inflammatory conditions, all resulting from pathogenic variants in the mevalonate kinase gene (MVK). Their clinical manifestations are highly variable, ranging from more or less serious systemic disorders, such as hereditary recurrent fevers, to purely localized pathologies such as porokeratosis. The oldest condition identified as linked to this gene is a metabolic disease called mevalonic aciduria, and the most recent is disseminated superficial actinic porokeratosis, a disease limited to the skin. The modes of inheritance of MK-associated diseases also diverge among the different subtypes: recessive for the systemic subtypes and dominant with a post-zygotic somatic genetic alteration for MVK-associated porokeratosis. This review quickly retraces the historical steps that led to the description of the various MK-associated disease phenotypes and to a better understanding of their pathophysiology, then summarizes and compares the different genetic mechanisms involved in this group of disorders, and finally discusses the diverse causes that could underlie this phenotypic heterogeneity.
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11
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Lin B, Goldbach-Mansky R. Pathogenic insights from genetic causes of autoinflammatory inflammasomopathies and interferonopathies. J Allergy Clin Immunol 2022; 149:819-832. [PMID: 34893352 PMCID: PMC8901451 DOI: 10.1016/j.jaci.2021.10.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/31/2021] [Accepted: 10/06/2021] [Indexed: 12/22/2022]
Abstract
A number of systemic autoinflammatory diseases arise from gain-of-function mutations in genes encoding IL-1-activating inflammasomes or cytoplasmic nucleic acid sensors including the receptor and sensor STING and result in increased IL-1 and type I interferon production, respectively. Blocking these pathways in human diseases has provided proof-of-concept, confirming the prominent roles of these cytokines in disease pathogenesis. Recent insights into the multilayered regulation of these sensor pathways and insights into their role in amplifying the disease pathogenesis of monogenic and complex genetic diseases spurred new drug development targeting the sensors. This review provides insights into the pathogenesis and genetic causes of these "prototypic" diseases caused by gain-of function mutations in IL-1-activating inflammasomes (inflammasomopathies) and in interferon-activating pathways (interferonopathies) including STING-associated vasculopathy with onset in infancy, Aicardi-Goutieres syndrome, and proteasome-associated autoinflammatory syndromes that link activation of the viral sensors STING, "self" nucleic acid metabolism, and the ubiquitin-proteasome system to "type I interferon production" and human diseases. Clinical responses and biomarker changes to Janus kinase inhibitors confirm a role of interferons, and a growing number of diseases with "interferon signatures" unveil extensive cross-talk between major inflammatory pathways. Understanding these interactions promises new tools in tackling the significant clinical challenges in treating patients with these conditions.
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Affiliation(s)
- Bin Lin
- Translational Autoinflammatory Diseases Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md.
| | - Raphaela Goldbach-Mansky
- Translational Autoinflammatory Diseases Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md.
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12
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DeMarsh SJ, Kendel NE, Bacha C, Ardoin SP, Kahwash S, Rose MJ. Storming the castle: A case report of multi‐system dysregulation in a child with Castleman disease. Clin Case Rep 2022; 10:e05491. [PMID: 35369387 PMCID: PMC8858787 DOI: 10.1002/ccr3.5491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/20/2022] [Accepted: 02/06/2022] [Indexed: 11/09/2022] Open
Abstract
Castleman disease is a non‐clonal, lymphoproliferative disorder rarely seen in children. Presented is a 12‐year‐old male with progressive abdominal pain, vomiting, and fever. Diagnostic testing revealed multi‐organ system involvement and the diagnosis was ultimately made with tissue biopsy. Marked disease regression occurred after high‐dose steroids and continued interleukin‐6 inhibition.
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Affiliation(s)
- Samantha J. DeMarsh
- Division of Pediatric Residency Program Nationwide Children’s Hospital Columbus Ohio USA
| | - Nicole E. Kendel
- Division of Pediatric Hematology‐Oncology Nationwide Children’s Hospital Columbus Ohio USA
| | - Christine Bacha
- Division of Pediatric Rheumatology Nationwide Children’s Hospital Columbus Ohio USA
| | - Stacy P. Ardoin
- Division of Pediatric Rheumatology Nationwide Children’s Hospital Columbus Ohio USA
| | - Samir Kahwash
- Division of Pediatric Pathology Nationwide Children’s Hospital Columbus Ohio USA
| | - Melissa J. Rose
- Division of Pediatric Hematology‐Oncology Nationwide Children’s Hospital Columbus Ohio USA
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13
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Borst C, Symmank D, Drach M, Weninger W. Cutaneous signs and mechanisms of inflammasomopathies. Ann Rheum Dis 2022; 81:454-465. [PMID: 35039323 DOI: 10.1136/annrheumdis-2021-220977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/20/2021] [Indexed: 11/03/2022]
Abstract
The emerging group of autoinflammatory diseases (AIDs) is caused by a dysregulation of the innate immune system while lacking the typical footprint of adaptive immunity. A prominent subgroup of AIDs are inflammasomopathies, which are characterised by periodic flares of cutaneous signs as well as systemic organ involvement and fever. The range of possible skin lesions is vast, ranging from urticarial, erysipelas-like and pustular rashes to erythematous patches, violaceous plaques and eventual necrosis and ulceration. This review provides a structured overview of the pathogenesis and the clinical picture with a focus on dermatological aspects of inflammasomopathies. Current treatment options for these conditions are also discussed.
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Affiliation(s)
- Carina Borst
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Dörte Symmank
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Mathias Drach
- Department of Dermatology, Medical University of Vienna, Wien, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Wien, Austria
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14
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Jain A, Bhoyar RC, Pandhare K, Mishra A, Sharma D, Imran M, Senthivel V, Divakar MK, Rophina M, Jolly B, Batra A, Sharma S, Siwach S, Jadhao AG, Palande NV, Jha GN, Ashrafi N, Mishra PK, A K V, Jain S, Dash D, Kumar NS, Vanlallawma A, Sarma RJ, Chhakchhuak L, Kalyanaraman S, Mahadevan R, Kandasamy S, B M P, Rajagopal RE, Ramya J E, Devi P N, Bajaj A, Gupta V, Mathew S, Goswami S, Mangla M, Prakash S, Joshi K, Meyakumla, S S, Gajjar D, Soraisham R, Yadav R, Devi YS, Gupta A, Mukerji M, Ramalingam S, B K B, Scaria V, Sivasubbu S. Genetic epidemiology of autoinflammatory disease variants in Indian population from 1029 whole genomes. JOURNAL OF GENETIC ENGINEERING AND BIOTECHNOLOGY 2021; 19:183. [PMID: 34905135 PMCID: PMC8671593 DOI: 10.1186/s43141-021-00268-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022]
Abstract
Background Autoinflammatory disorders are the group of inherited inflammatory disorders caused due to the genetic defect in the genes that regulates innate immune systems. These have been clinically characterized based on the duration and occurrence of unprovoked fever, skin rash, and patient’s ancestry. There are several autoinflammatory disorders that are found to be prevalent in a specific population and whose disease genetic epidemiology within the population has been well understood. However, India has a limited number of genetic studies reported for autoinflammatory disorders till date. The whole genome sequencing and analysis of 1029 Indian individuals performed under the IndiGen project persuaded us to perform the genetic epidemiology of the autoinflammatory disorders in India. Results We have systematically annotated the genetic variants of 56 genes implicated in autoinflammatory disorder. These genetic variants were reclassified into five categories (i.e., pathogenic, likely pathogenic, benign, likely benign, and variant of uncertain significance (VUS)) according to the American College of Medical Genetics and Association of Molecular pathology (ACMG-AMP) guidelines. Our analysis revealed 20 pathogenic and likely pathogenic variants with significant differences in the allele frequency compared with the global population. We also found six causal founder variants in the IndiGen dataset belonging to different ancestry. We have performed haplotype prediction analysis for founder mutations haplotype that reveals the admixture of the South Asian population with other populations. The cumulative carrier frequency of the autoinflammatory disorder in India was found to be 3.5% which is much higher than reported. Conclusion With such frequency in the Indian population, there is a great need for awareness among clinicians as well as the general public regarding the autoinflammatory disorder. To the best of our knowledge, this is the first and most comprehensive population scale genetic epidemiological study being reported from India. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-021-00268-2.
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Affiliation(s)
- Abhinav Jain
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Rahul C Bhoyar
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Kavita Pandhare
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Anushree Mishra
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Disha Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Mohamed Imran
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Vigneshwar Senthivel
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Mohit Kumar Divakar
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Mercy Rophina
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Bani Jolly
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Arushi Batra
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Sumit Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Sanjay Siwach
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Arun G Jadhao
- Department of Zoology, RTM Nagpur University, Nagpur, Maharashtra, 440033, India
| | - Nikhil V Palande
- Department of Zoology, Shri Mathuradas Mohota College of Science, Nagpur, Maharashtra, 440009, India
| | - Ganga Nath Jha
- Department of Anthropology, Vinoba Bhave University, Hazaribag, Jharkhand, 825301, India
| | - Nishat Ashrafi
- Department of Anthropology, Vinoba Bhave University, Hazaribag, Jharkhand, 825301, India
| | - Prashant Kumar Mishra
- Department of Biotechnology, Vinoba Bhave University, Hazaribag, Jharkhand, 825301, India
| | - Vidhya A K
- Department of Biochemistry, Dr. Kongu Science and Art College, Erode, Tamil Nadu, 638107, India
| | - Suman Jain
- Thalassemia and Sickle Cell Society, Hyderabad, Telangana, 500052, India
| | - Debasis Dash
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | | | - Andrew Vanlallawma
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, 796004, India
| | - Ranjan Jyoti Sarma
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, 796004, India
| | | | | | - Radha Mahadevan
- TVMC, Tirunelveli Medical College, Tirunelveli, Tamil Nadu, 627011, India
| | - Sunitha Kandasamy
- TVMC, Tirunelveli Medical College, Tirunelveli, Tamil Nadu, 627011, India
| | - Pabitha B M
- TVMC, Tirunelveli Medical College, Tirunelveli, Tamil Nadu, 627011, India
| | | | - Ezhil Ramya J
- TVMC, Tirunelveli Medical College, Tirunelveli, Tamil Nadu, 627011, India
| | - Nirmala Devi P
- TVMC, Tirunelveli Medical College, Tirunelveli, Tamil Nadu, 627011, India
| | - Anjali Bajaj
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Vishu Gupta
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Samatha Mathew
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Sangam Goswami
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Mohit Mangla
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Savinitha Prakash
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Kandarp Joshi
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Meyakumla
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India
| | - Sreedevi S
- Department of Microbiology, St.Pious X Degree & PG College for Women, Hyderabad, Telangana, 500076, India
| | - Devarshi Gajjar
- Department of Microbiology, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - Ronibala Soraisham
- Department of Dermatology, Venereology and Leprology, Regional Institute of Medical Sciences, Imphal, Manipur, 795004, India
| | - Rohit Yadav
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Yumnam Silla Devi
- CSIR- North East Institute of Science and Technology, Jorhat, Assam, 785006, India
| | - Aayush Gupta
- Department of Dermatology, Dr. D.Y. Patil Medical College, Pune, Maharashtra, 411018, India
| | - Mitali Mukerji
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Sivaprakash Ramalingam
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Binukumar B K
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Vinod Scaria
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India.
| | - Sridhar Sivasubbu
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110025, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India.
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15
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Bader-Meunier B, Martins AL, Charbit-Henrion F, Meinzer U, Belot A, Cuisset L, Faye A, Georgin-Lavialle S, Quartier P, Remy-Piccolo V, Ruemmele F, Uettwiller F, Viala J, Cerf Bensussan N, Berrebi D, Melki I. Mevalonate Kinase Deficiency: A Cause of Severe Very-Early-Onset Inflammatory Bowel Disease. Inflamm Bowel Dis 2021; 27:1853-1857. [PMID: 34525209 DOI: 10.1093/ibd/izab139] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 12/20/2022]
Abstract
Mevalonate kinase deficiency should be considered in patients with severe very-early-onset inflammatory bowel disease (IBD), especially in patients with a history of recurrent or chronic fever, peritoneal adhesions, and atypical IBD pathology. Anti-interleukin-1 therapy may be efficacious in these patients with monogenic very-early-onset IBD.
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Affiliation(s)
- Brigitte Bader-Meunier
- Department of Paediatric Immunology, Hematology, and Rheumatology, Groupe Hospitalier Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, and Imagine Foundation, Paris, France
| | - Andreia Luís Martins
- Pediatric Department, Professor Doutor Fernando Fonseca Hospital, Amadora, Portugal
| | - Fabienne Charbit-Henrion
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Groupe Hospitalier Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université de Paris, Paris, France.,Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Ulrich Meinzer
- Université de Paris, Paris, France.,Department of General Paediatric, Infectious Diseases and Internal Medicine, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, Paris, France.,Center for Research on Inflammation, Paris, France.,Biology and Genetics of Bacterial Cell Wall Unit, Pasteur Institute, Paris, France
| | - Alexandre Belot
- Department of Pediatric Nephrology, Rheumatology and Dermatology and Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Hôpital Femme Mère Enfant, Bron, Lyon,France
| | - Laurence Cuisset
- Department of Molecular Genetics, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Albert Faye
- Université de Paris, Paris, France.,Department of General Paediatric, Infectious Diseases and Internal Medicine, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sophie Georgin-Lavialle
- Sorbonne University, Paris, France.,Department of Internal Medicine, Tenon Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France; National Reference Center of Autoinflammatory Disease and AA Amyloidosis.,Laboratoire Inserm, Paris, France
| | - Pierre Quartier
- Department of Paediatric Immunology, Hematology, and Rheumatology, Groupe Hospitalier Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, and Imagine Foundation, Paris, France.,Université de Paris, Paris, France
| | | | - Frank Ruemmele
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Groupe Hospitalier Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université de Paris, Paris, France
| | - Florence Uettwiller
- Paediatric Rheumatology Unit, Centre Hospitalier Universitaire de Clocheville, Tours, France
| | - Jérôme Viala
- Université de Paris, Paris, France.,Department of Paediatric Gastro-enterology and Nutrition, Hôpital Universitaire Robert-Debré, Assistance Publique-Hôpitaux de Paris, Paris, France.,INSERM UMR1149, Paris, France
| | - Nadine Cerf Bensussan
- Université de Paris, Paris, France.,Laboratory of Intestinal Immunity, Imagine Institute, Paris, France.,INSERM UMR1149, Paris, France
| | - Dominique Berrebi
- Université de Paris, Paris, France.,Department of Paediatric Pathology, Hôpital Robert-Debré, Hôpital Universitaire Robert-Debré, Assistance Publique-Hôpitaux de Paris, Paris, France.,Paris University, Paris, France
| | - Isabelle Melki
- Department of Paediatric Immunology, Hematology, and Rheumatology, Groupe Hospitalier Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, and Imagine Foundation, Paris, France.,Department of General Paediatric, Infectious Diseases and Internal Medicine, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Centre for Rheumatic, Autoimmune and Systemic Diseases in Children, Assistance Publique-Hôpitaux de Paris, Paris, France.,Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, Paris, France
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16
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Politiek FA, Waterham HR. Compromised Protein Prenylation as Pathogenic Mechanism in Mevalonate Kinase Deficiency. Front Immunol 2021; 12:724991. [PMID: 34539662 PMCID: PMC8446354 DOI: 10.3389/fimmu.2021.724991] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/12/2021] [Indexed: 12/25/2022] Open
Abstract
Mevalonate kinase deficiency (MKD) is an autoinflammatory metabolic disorder characterized by life-long recurring episodes of fever and inflammation, often without clear cause. MKD is caused by bi-allelic pathogenic variants in the MVK gene, resulting in a decreased activity of the encoded enzyme mevalonate kinase (MK). MK is an essential enzyme in the isoprenoid biosynthesis pathway, which generates both non-sterol and sterol isoprenoids. The inflammatory symptoms of patients with MKD point to a major role for isoprenoids in the regulation of the innate immune system. In particular a temporary shortage of the non-sterol isoprenoid geranylgeranyl pyrophosphate (GGPP) is increasingly linked with inflammation in MKD. The shortage of GGPP compromises protein prenylation, which is thought to be one of the main causes leading to the inflammatory episodes in MKD. In this review, we discuss current views and the state of knowledge of the pathogenetic mechanisms in MKD, with particular focus on the role of compromised protein prenylation.
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Affiliation(s)
- Frouwkje A Politiek
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Hans R Waterham
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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17
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Brennenstuhl H, Nashawi M, Schröter J, Baronio F, Beedgen L, Gleich F, Jeltsch K, von Landenberg C, Martini S, Simon A, Thiel C, Tsiakas K, Opladen T, Kölker S, Hoffmann GF, Haas D. Phenotypic diversity, disease progression, and pathogenicity of MVK missense variants in mevalonic aciduria. J Inherit Metab Dis 2021; 44:1272-1287. [PMID: 34145613 DOI: 10.1002/jimd.12412] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/09/2021] [Accepted: 06/16/2021] [Indexed: 01/05/2023]
Abstract
Mevalonic aciduria (MVA) and hyperimmunoglobulinemia D syndrome (MKD/HIDS) are disorders of cholesterol biosynthesis caused by variants in the MVK gene and characterized by increased urinary excretion of mevalonic acid. So far, 30 MVA patients have been reported, suffering from recurrent febrile crises and neurologic impairment. Here, we present an in-depth analysis of the phenotypic spectrum of MVA and provide an in-silico pathogenicity model analysis of MVK missense variants. The phenotypic spectrum of 11 MVA patients (age range 0-51 years) registered in the Unified European Registry for Inherited Metabolic Disorders database was systematically analyzed using terms of the Human Phenotype Ontology. Biochemical, radiological as well as genetic characteristics were investigated. Six of eleven patients have reached adulthood and four have reached adolescence. One of the adolescent patients died at the age of 16 years and one patient died shortly after birth. Symptoms started within the first year of life, including episodic fever, developmental delay, ataxia, and ocular involvement. We also describe a case with absence of symptoms despite massive excretion of mevalonic acid. Pathogenic variants causing MVA cluster within highly conserved regions, which are involved in mevalonate and ATP binding. The phenotype of adult and adolescent MVA patients is more heterogeneous than previously assumed. Outcome varies from an asymptomatic course to early death. MVK variants cluster in functionally important and highly conserved protein domains and show high concordance regarding their expected pathogenicity.
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Affiliation(s)
- Heiko Brennenstuhl
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Mohammed Nashawi
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
- Department of Pediatrics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Julian Schröter
- Division of Pediatric Epileptology, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Federico Baronio
- Paediatric Unit, Department of Medical and Surgical Sciences, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Lars Beedgen
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Florian Gleich
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Kathrin Jeltsch
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | | | - Silvia Martini
- Neonatal Intensive Care Unit, Department of Medical and Surgical Sciences, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Anna Simon
- Department of Internal Medicine, Radboudumc Expertise Centre for Immunodeficiency and Autoinflammation (REIA), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Christian Thiel
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Konstantinos Tsiakas
- Department of Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Opladen
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Stefan Kölker
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Georg F Hoffmann
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Dorothea Haas
- Division of Neuropaediatrics and Paediatric Metabolic Medicine, Center for Paediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
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18
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Sharma P, Jain A, Scaria V. Genetic Landscape of Rare Autoinflammatory Disease Variants in Qatar and Middle Eastern Populations Through the Integration of Whole-Genome and Exome Datasets. Front Genet 2021; 12:631340. [PMID: 34054914 PMCID: PMC8155677 DOI: 10.3389/fgene.2021.631340] [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: 11/19/2020] [Accepted: 03/24/2021] [Indexed: 11/13/2022] Open
Abstract
Rare monogenic autoinflammatory diseases are a group of recurrent inflammatory genetic disorders caused due to genetic variants in over 37 genes. While a number of these disorders have been identified and reported in Middle Eastern populations, the carrier frequency of these genetic variants in the Middle Eastern population is not known. The availability of whole-genome and exome datasets of over 1,000 individuals from Qatar persuaded us to explore the genetic epidemiology of rare autoinflammatory genetic variants. We have systematically analyzed genetic variants in genome-scale datasets from Qatar with a compendium of variants associated with autoinflammatory diseases. The variants were systematically reclassified according to the American College of Medical Genetics and Genomics guidelines for interpretation of variant pathogenicity. Our analysis identified seven pathogenic and likely pathogenic variants with significant differences in their allele frequencies compared to the global population. The cumulative carrier frequency of these variants was found to be 2.58%. Furthermore, our analysis revealed that five genes, implicated in rare autoinflammatory diseases, were under natural selection. To the best of our knowledge, this is the first and most comprehensive study on the population-scale analysis and genetic epidemiology of genetic variants that cause rare autoinflammatory disease in Middle Eastern populations.
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Affiliation(s)
- Parul Sharma
- Center for Computational Biology, Indraprastha Institute of Information Technology, New Delhi, India
| | - Abhinav Jain
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Vinod Scaria
- Center for Computational Biology, Indraprastha Institute of Information Technology, New Delhi, India.,CSIR-Institute of Genomics and Integrative Biology, New Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
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19
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Boursier G, Rittore C, Milhavet F, Cuisset L, Touitou I. Mevalonate Kinase-Associated Diseases: Hunting for Phenotype-Genotype Correlation. J Clin Med 2021; 10:jcm10081552. [PMID: 33917151 PMCID: PMC8067830 DOI: 10.3390/jcm10081552] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/11/2022] Open
Abstract
Mevalonate kinase-associated diseases (MKAD) are caused by pathogenic mutations in the mevalonate kinase gene (MVK) and encompass several phenotypically different rare and hereditary autoinflammatory conditions. The most serious is a recessive systemic metabolic disease called mevalonic aciduria, and the most recently recognized is disseminated superficial actinic porokeratosis, a dominant disease limited to the skin. To evaluate a possible correlation between genotypes and (1) the different MKAD clinical subtypes or (2) the occurrence of severe manifestations, data were reviewed for all patients with MVK variants described in the literature (N = 346), as well as those referred to our center (N = 51). The genotypes including p.(Val377Ile) (homozygous or compound heterozygous) were more frequent in mild systemic forms but were also sometimes encountered with severe disease. We confirmed that amyloidosis was more prevalent in patients compound heterozygous for p.(Ile268Thr) and p.(Val377Ile) than in others and revealed new associations. Patients homozygous for p.(Leu264Phe), p.(Ala334Thr) or compound heterozygous for p.(His20Pro) and p.(Ala334Thr) had increased risk of severe neurological or ocular symptoms. All patients homozygous for p.(Leu264Phe) had a cataract. The variants associated with porokeratosis were relatively specific and more frequently caused a frameshift than in patients with other clinical forms (26% vs. 6%). We provide practical recommendations focusing on phenotype-genotype correlation in MKAD that could be helpful for prophylactic management.
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Affiliation(s)
- Guilaine Boursier
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Rare and Autoinflammatory Diseases Unit, CHU, 34295 Montpellier, France; (G.B.); (C.R.); (F.M.)
| | - Cécile Rittore
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Rare and Autoinflammatory Diseases Unit, CHU, 34295 Montpellier, France; (G.B.); (C.R.); (F.M.)
| | - Florian Milhavet
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Rare and Autoinflammatory Diseases Unit, CHU, 34295 Montpellier, France; (G.B.); (C.R.); (F.M.)
- IRMB, University of Montpellier, INSERM, 34295 Montpellier, France
| | - Laurence Cuisset
- Genetic and Molecular Biology Laboratory, Cochin Hospital, 75014 Paris, France;
| | - Isabelle Touitou
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Rare and Autoinflammatory Diseases Unit, CHU, 34295 Montpellier, France; (G.B.); (C.R.); (F.M.)
- IRMB, University of Montpellier, INSERM, 34295 Montpellier, France
- Correspondence:
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20
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Gene Expression Analysis of Mevalonate Kinase Deficiency Affected Children Identifies Molecular Signatures Related to Hematopoiesis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031170. [PMID: 33525735 PMCID: PMC7908123 DOI: 10.3390/ijerph18031170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 12/12/2022]
Abstract
Mevalonate kinase deficiency (MKD) is a rare autoinflammatory genetic disorder characterized by recurrent fever attacks and systemic inflammation with potentially severe complications. Although it is recognized that the lack of protein prenylation consequent to mevalonate pathway blockade drives IL1β hypersecretion, and hence autoinflammation, MKD pathogenesis and the molecular mechanisms underlaying most of its clinical manifestations are still largely unknown. In this study, we performed a comprehensive bioinformatic analysis of a microarray dataset of MKD patients, using gene ontology and Ingenuity Pathway Analysis (IPA) tools, in order to identify the most significant differentially expressed genes and infer their predicted relationships into biological processes, pathways, and networks. We found that hematopoiesis linked biological functions and pathways are predominant in the gene ontology of differentially expressed genes in MKD, in line with the observed clinical feature of anemia. We also provided novel information about the molecular mechanisms at the basis of the hematological abnormalities observed, that are linked to the chronic inflammation and to defective prenylation. Considering the broad and unspecific spectrum of MKD clinical manifestations and the difficulty in its diagnosis, a better understanding of MKD molecular bases could be translated to the clinical level to facilitate diagnosis, and improve management and therapy.
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21
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Spectrum of clinical features and genetic variants in mevalonate kinase (MVK) gene of South Indian families suffering from Hyperimmunoglobulin D Syndrome. PLoS One 2020; 15:e0237999. [PMID: 32822427 PMCID: PMC7442240 DOI: 10.1371/journal.pone.0237999] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/06/2020] [Indexed: 12/30/2022] Open
Abstract
Hyper-IgD syndrome (HIDS, OMIM #260920) is a rare autosomal recessive autoinflammatory disorder caused by pathogenic variants in the mevalonate kinase (MVK) gene. HIDS has an incidence of 1:50,000 to 1:5,000, and is thought to be prevalent mainly in northern Europe. Here, we report a case series of HIDS from India, which includes ten patients from six families who presented with a wide spectrum of clinical features such as recurrent fever, oral ulcers, rash, arthritis, recurrent diarrhea, hepatosplenomegaly, and high immunoglobulin levels. Using whole exome sequencing (WES) and/or Sanger capillary sequencing, we identified five distinct genetic variants in the MVK gene from nine patients belonging to six families. The variants were classified as pathogenic or likely pathogenic as per the American College of Medical Genetics and Genomics and the Association for Molecular Pathology (ACMG-AMP) guidelines for annotation of sequence variants. Over 70% of patients in the present study had two recurrent mutations in MVK gene i.e. a nonsynonymous variant p.V377I, popularly known as the ‘Dutch mutation’, along with a splicing variant c.226+2delT in a compound heterozygous form. Identity by descent analysis in two patients with the recurrent variants identified a 6.7 MB long haplotype suggesting a founder effect in the South Indian population. Our analysis suggests that a limited number of variants account for the majority of the patients with HIDS in South India. This has implications in clinical diagnosis, as well as in the development of cost-effective approaches for genetic diagnosis and screening. To our best knowledge, this is the first and most comprehensive case series of clinically and genetically characterized patients with HIDS from India.
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22
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Ter Haar NM, Jansen MHA, Frenkel JF, Vastert SJ. How autoinflammation may turn into autoimmune inflammation: Insights from monogenetic and complex IL-1 mediated auto-inflammatory diseases. Clin Immunol 2020; 219:108538. [PMID: 32681980 DOI: 10.1016/j.clim.2020.108538] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 06/14/2020] [Accepted: 07/08/2020] [Indexed: 12/12/2022]
Abstract
IL-1 mediated auto-inflammatory diseases are characterised by episodes of unexplained fever, generalized and localized inflammation. The characteristic symptoms predominantly result from exaggerated activation of innate immune pathways. However, in some patients with typical IL-1 mediated diseases, chronic disease manifestations develop in the absence of acute inflammation, suggesting the involvement of adaptive immune pathways. We discuss clinical observations as well as novel insights in how chronic activation of innate immune pathways can lead to auto-immune disease features in patients with auto-inflammatory diseases and how we need to better understand these sequelae in order to improve treatment strategies.
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Affiliation(s)
- N M Ter Haar
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands; Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, the Netherlands
| | - M H A Jansen
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J F Frenkel
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands
| | - S J Vastert
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands; Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, the Netherlands.
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23
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Abstract
Kawasaki disease, known as mucocutaneous lymph node syndrome, is a multi-system disease of unknown aetiology that occurs in young children under 5 years of age. The recurrence rate of Kawasaki disease is as rare as 1-3%. Especially in cases with coronary artery involvement, recurrent Kawasaki disease should be investigated in terms of underlying rheumatologic diseases such as periodic fever syndromes, microscopic polyangiitis, polyarteritis nodosa, and systemic-onset juvenile arthritis. In this study, we report homozygote mutations in mevalonate kinase and familial Mediterranean fever genes in a recurrent Kawasaki disease with coronary dilatation.
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24
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Hints for Genetic and Clinical Differentiation of Adult-Onset Monogenic Autoinflammatory Diseases. Mediators Inflamm 2019; 2019:3293145. [PMID: 32082075 PMCID: PMC7012260 DOI: 10.1155/2019/3293145] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/16/2019] [Indexed: 12/16/2022] Open
Abstract
Monogenic autoinflammatory diseases (mAIDs) are inherited errors of innate immunity characterized by systemic inflammation recurring with variable frequency and involving the skin, serosal membranes, synovial membranes, joints, the gastrointestinal tube, and/or the central nervous system, with reactive amyloidosis as a potential severe long-term consequence. Although individually uncommon, all mAIDs set up an emerging chapter of internal medicine: recent findings have modified our knowledge regarding mAID pathophysiology and clarified that protean inflammatory symptoms can be variably associated with periodic fevers, depicting multiple specific conditions which usually start in childhood, such as familial Mediterranean fever, tumor necrosis factor receptor-associated periodic syndrome, cryopyrin-associated periodic syndrome, and mevalonate kinase deficiency. There are no evidence-based studies to establish which potential genotype analysis is the most appropriate in adult patients with clinical phenotypes suggestive of mAIDs. This review discusses genetic and clinical hints for an ideal diagnostic approach to mAIDs in adult patients, as their early identification is essential to prompt effective treatment and improve quality of life, and also highlights the most recent developments in the diagnostic work-up for the most frequent hereditary periodic febrile syndromes worldwide.
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25
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Figueras-Nart I, Mascaró JM, Solanich X, Hernández-Rodríguez J. Dermatologic and Dermatopathologic Features of Monogenic Autoinflammatory Diseases. Front Immunol 2019; 10:2448. [PMID: 31736939 PMCID: PMC6828938 DOI: 10.3389/fimmu.2019.02448] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/01/2019] [Indexed: 12/12/2022] Open
Abstract
Autoinflammatory diseases include disorders with a monogenic cause and also complex conditions associated to polygenic or multifactorial factors. An increased number of both monogenic and polygenic autoinflammatory conditions have been identified during the last years. Although skin manifestations are often predominant in monogenic autoinflammatory diseases, clinical and histopathological information regarding their dermatological involvement is still scarce. Monogenic autoinflammatory diseases with cutaneous expression can be classified based on the predominant lesion: (1) maculopapular rashes or inflammatory plaques; (2) urticarial rashes; (3) pustular, pyogenic or neutrophilic dermatosis-like rashes; (4) panniculitis or subcutaneous nodules; (5) vasculitis or vasculopathy; (6) hyperkeratotic lesions; (7) hyperpigmented lesions; (8) bullous lesions; and (9) aphthous lesions. By using this classification, this review intends to provide clinical and histopathological knowledge about cutaneous involvement in monogenic autoinflammatory diseases.
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Affiliation(s)
- Ignasi Figueras-Nart
- Department of Dermatology, Bellvitge Hospital, University of Barcelona, Barcelona, Spain
| | - José M Mascaró
- Department of Dermatology, Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Xavier Solanich
- Department of Internal Medicine, Bellvitge Hospital, University of Barcelona, Barcelona, Spain
| | - José Hernández-Rodríguez
- Clinical Unit of Autoinflammatory Diseases and Vasculitis Research Unit, Department of Autoimmune Diseases, Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain
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26
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Munoz MA, Jurczyluk J, Simon A, Hissaria P, Arts RJW, Coman D, Boros C, Mehr S, Rogers MJ. Defective Protein Prenylation in a Spectrum of Patients With Mevalonate Kinase Deficiency. Front Immunol 2019; 10:1900. [PMID: 31474985 PMCID: PMC6702261 DOI: 10.3389/fimmu.2019.01900] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 07/26/2019] [Indexed: 01/08/2023] Open
Abstract
The rare autoinflammatory disease mevalonate kinase deficiency (MKD, which includes HIDS and mevalonic aciduria) is caused by recessive, pathogenic variants in the MVK gene encoding mevalonate kinase. Deficiency of this enzyme decreases the synthesis of isoprenoid lipids and thus prevents the normal post-translational prenylation of small GTPase proteins, which then accumulate in their unprenylated form. We recently optimized a sensitive assay capable of detecting unprenylated Rab GTPase proteins in peripheral blood mononuclear cells (PBMCs) and showed that this assay distinguished MKD from other autoinflammatory diseases. We have now analyzed PBMCs from an additional six patients with genetically-confirmed MKD (with different compound heterozygous MVK genotypes), and compared these with PBMCs from three healthy volunteers and four unaffected control individuals heterozygous for the commonest pathogenic variant, MVKV377I. We detected a clear accumulation of unprenylated Rab proteins, as well as unprenylated Rap1A by western blotting, in all six genetically-confirmed MKD patients compared to heterozygous controls and healthy volunteers. Furthermore, in the three subjects for whom measurements of residual mevalonate kinase activity was available, enzymatic activity inversely correlated with the extent of the defect in protein prenylation. Finally, a heterozygous MVKV377I patient presenting with autoinflammatory symptoms did not have defective prenylation, indicating a different cause of disease. These findings support the notion that the extent of loss of enzyme function caused by biallelic MVK variants determines the severity of defective protein prenylation, and the accumulation of unprenylated proteins in PBMCs may be a sensitive and consistent biomarker that could be used to aid, or help rule out, diagnosis of MKD.
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Affiliation(s)
- Marcia A Munoz
- Bone Biology, Garvan Institute of Medical Research, Sydney & St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, Australia
| | - Julie Jurczyluk
- Bone Biology, Garvan Institute of Medical Research, Sydney & St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, Australia
| | - Anna Simon
- Department of Internal Medicine, Radboudumc Expertise Centre for Immunodeficiency and Autoinflammation, Radboud University Medical Centre, Nijmegen, Netherlands
| | | | - Rob J W Arts
- Department of Internal Medicine, Radboudumc Expertise Centre for Immunodeficiency and Autoinflammation, Radboud University Medical Centre, Nijmegen, Netherlands
| | - David Coman
- Queensland Children's Hospital, Brisbane, QLD, Australia.,School of Medicine, University of Queensland, Brisbane, QLD, Australia.,School of Medicine, Griffith University, Brisbane, QLD, Australia
| | - Christina Boros
- Department of Rheumatology, Women's and Children's Hospital, University of Adelaide Discipline of Paediatrics, Adelaide, SA, Australia
| | - Sam Mehr
- Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, VIC, Australia
| | - Michael J Rogers
- Bone Biology, Garvan Institute of Medical Research, Sydney & St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, Australia
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27
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Abstract
The autoinflammatory diseases comprise a broad spectrum of disorders characterized by unchecked activation of the innate immune system. Whereas aberrations in adaptive immunity have long been identified in 'autoimmune' disorders, the concept of 'autoinflammation' emerged relatively recently, first describing a group of clinical disorders characterized by spontaneous episodes of systemic inflammation without manifestations typical of autoimmune disorders. Improved knowledge of innate immune mechanisms, coupled with remarkable progress in genomics and an expanding number of clinical cases, has since led to an increasing number of disorders classified as autoinflammatory or containing an autoinflammatory component. Biologic therapies targeting specific components of the innate immune system have provided immense clinical benefit, and have further elucidated the role of innate immunity in autoinflammatory disorders. This article reviews the basic mechanisms of autoinflammation, followed by an update on the pathophysiology and treatment of the monogenic and multifactorial autoinflammatory diseases, and the common dermatologic conditions in which autoinflammation plays a major role.
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28
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Galeotti C, Georgin-Lavialle S, Sarrabay G, Touitou I, Koné-Paut I. Le déficit en mévalonate kinase en 2016. Rev Med Interne 2018; 39:265-270. [DOI: 10.1016/j.revmed.2016.08.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 08/18/2016] [Indexed: 01/08/2023]
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29
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Moreira A, Torres B, Peruzzo J, Mota A, Eyerich K, Ring J. Skin symptoms as diagnostic clue for autoinflammatory diseases. An Bras Dermatol 2017; 92:72-80. [PMID: 28225960 PMCID: PMC5312182 DOI: 10.1590/abd1806-4841.20175208] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/12/2015] [Indexed: 12/18/2022] Open
Abstract
Autoinflammatory disorders are immune-mediated diseases with increased production of inflammatory cytokines and absence of detectable autoantibodies. They course with recurrent episodes of systemic inflammation and fever is the most common symptom. Cutaneous manifestations are prevalent and important to diagnosis and early treatment of the syndromes. The purpose of this review is to emphasize to dermatologists the skin symptoms present in these syndromes in order to provide their early diagnosis.
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Affiliation(s)
- Alvaro Moreira
- Department of Dermatology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany.,Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | - Barbara Torres
- Department of Dermatology and Venereology, Faculty of Medicine of the University of Porto, Porto, Portugal.,Unidade de Saúde Familiar Vale de Sorraia, Coruche, Portugal
| | - Juliano Peruzzo
- Faculdade de Medicina - Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil
| | - Alberto Mota
- Department of Dermatology and Venereology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Kilian Eyerich
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Johannes Ring
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland.,Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
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30
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Ter Haar NM, Jeyaratnam J, Lachmann HJ, Simon A, Brogan PA, Doglio M, Cattalini M, Anton J, Modesto C, Quartier P, Hoppenreijs E, Martino S, Insalaco A, Cantarini L, Lepore L, Alessio M, Calvo Penades I, Boros C, Consolini R, Rigante D, Russo R, Pachlopnik Schmid J, Lane T, Martini A, Ruperto N, Frenkel J, Gattorno M. The Phenotype and Genotype of Mevalonate Kinase Deficiency: A Series of 114 Cases From the Eurofever Registry. Arthritis Rheumatol 2017; 68:2795-2805. [PMID: 27213830 DOI: 10.1002/art.39763] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 05/17/2016] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Mevalonate kinase deficiency (MKD) is a rare metabolic disease characterized by recurrent inflammatory episodes. This study was undertaken to describe the genotype, phenotype, and response to treatment in an international cohort of MKD patients. METHODS All MKD cases were extracted from the Eurofever registry (Executive Agency for Health and Consumers project no. 2007332), an international, multicenter registry that retrospectively collects data on children and adults with autoinflammatory diseases. RESULTS The study included 114 MKD patients. The median age at onset was 0.5 years. Patients had on average 12 episodes per year. Most patients had gastrointestinal symptoms (n = 112), mucocutaneous involvement (n = 99), lymphadenopathy (n = 102), or musculoskeletal symptoms (n = 89). Neurologic symptoms included headache (n = 43), cerebellar syndrome (n = 2), and mental retardation (n = 4). AA amyloidosis was noted in 5 patients, almost twice as many as expected from findings in previous cohorts. Macrophage activation syndrome occurred in 1 patient. Patients were generally well between attacks, but 10-20% of the patients had constitutional symptoms, such as fatigue, between fever episodes. Patients with p.V377I/p.I268T compound heterozygosity had AA amyloidosis significantly more often. Patients without a p.V377I mutation more often had severe musculoskeletal involvement. Treatment with nonsteroidal antiinflammatory drugs relieved symptoms. Steroids given during attacks, anakinra, and etanercept appeared to improve symptoms and could induce complete remission in patients with MKD. CONCLUSION We describe the clinical and genetic characteristics of 114 MKD patients, which is the largest cohort studied so far. The clinical manifestations confirm earlier reports. However, the prevalence of AA amyloidosis is far higher than expected.
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Affiliation(s)
| | | | | | - Anna Simon
- Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paul A Brogan
- University College London and Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | | | - Marco Cattalini
- University of Brescia and Spedali Civili di Brescia, Brescia, Italy
| | - Jordi Anton
- Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | | | - Pierre Quartier
- Université Paris-Descartes, Hôpital Necker-Enfants Malades, Paris, France
| | | | - Silvana Martino
- Clinica Pediatrica Università di Torino, Day-Hospital Immuno-reumatologia, Turin, Italy
| | | | | | | | | | | | - Christina Boros
- Women's and Children's Hospital, University of Adelaide, North Adelaide, South Australia, Australia
| | | | | | - Ricardo Russo
- Hospital de Pediatria Juan P. Garrahan, Buenos Aires, Argentina
| | | | - Thirusha Lane
- University College London Medical School, London, UK
| | - Alberto Martini
- Istituto Giannina Gaslini and Università degli Studi di Genova, Genoa, Italy
| | | | - Joost Frenkel
- University Medical Center Utrecht, Utrecht, The Netherlands.
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31
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Abstract
Autoinflammatory disorders are sterile inflammatory conditions characterized by episodes of early-onset fever, rash, and disease-specific patterns of organ inflammation. Gain-of-function mutations in innate danger-sensing pathways, including the inflammasomes and the nucleic acid sensing pathways, play critical roles in the pathogenesis of IL-1 and Type-I IFN-mediated disorders and point to an important role of excessive proinflammatory cytokine signaling, including interleukin (IL)-1b , Type-I interferons, IL-18, TNF and others in causing the organ specific immune dysregulation. The article discusses the concept of targeting proinflammatory cytokines and their signaling pathways with cytokine blocking treatments that have been life changing for some patients.
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Affiliation(s)
- Kyawt Win Shwin
- Translational Autoinflammatory Disease Studies, Rheumatology Fellowship Program, National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Building 10, Room 6D-52, 10 Center Drive, Bethesda, MD 20892, USA; Division of Rheumatic Diseases, UT Southwestern Medical Center, Dallas VA Medical Center, North Texas Health Care System, 4500 S. Lancaster Road, Dallas, TX 75216, USA
| | - Chyi-Chia Richard Lee
- Dermatopathology Section, Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), National Institutes of Health (NIH), Building 10, Room 2S235J, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Raphaela Goldbach-Mansky
- Translational Autoinflammatory Disease Studies, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Building 10, Room 6D-47B, 10 Center Drive, Bethesda, MD 20892, USA.
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32
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Cecatto C, Amaral AU, da Silva JC, Wajner A, Godoy KDS, Ribeiro RT, Gonçalves ADM, Vargas CR, Wajner M. Mevalonolactone disrupts mitochondrial functions and induces permeability transition pore opening in rat brain mitochondria: Implications for the pathogenesis of mevalonic aciduria. Neurochem Int 2017; 108:133-145. [PMID: 28284974 DOI: 10.1016/j.neuint.2017.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/07/2017] [Accepted: 03/06/2017] [Indexed: 12/13/2022]
Abstract
Mevalonic aciduria (MVA) is caused by severe deficiency of mevalonic kinase activity leading to tissue accumulation and high urinary excretion of mevalonic acid (MA) and mevalonolactone (ML). Patients usually present severe neurologic symptoms whose pathophysiology is poorly known. Here, we tested the hypothesis that the major accumulating metabolites are toxic by investigating the in vitro effects of MA and ML on important mitochondrial functions in rat brain and liver mitochondria. ML, but not MA, markedly decreased mitochondrial membrane potential (ΔΨm), NAD(P)H content and the capacity to retain Ca2+ in the brain, besides inducing mitochondrial swelling. These biochemical alterations were totally prevented by the classical inhibitors of mitochondrial permeability transition (MPT) cyclosporine A and ADP, as well as by ruthenium red in Ca2+-loaded mitochondria, indicating the involvement of MPT and an important role for mitochondrial Ca2+ in these effects. ML also induced lipid peroxidation and markedly inhibited aconitase activity, an enzyme that is highly susceptible to free radical attack, in brain mitochondrial fractions, indicating that lipid and protein oxidative damage may underlie some of ML-induced deleterious effects including MTP induction. In contrast, ML and MA did not compromise oxidative phosphorylation in the brain and all mitochondrial functions evaluated in the liver, evidencing a selective toxicity of ML towards the central nervous system. Our present study provides for the first time evidence that ML impairs essential brain mitochondrial functions with the involvement of MPT pore opening. It is therefore presumed that disturbance of brain mitochondrial homeostasis possibly contributes to the neurologic symptoms in MVA.
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Affiliation(s)
- Cristiane Cecatto
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alexandre Umpierrez Amaral
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Janaína Camacho da Silva
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alessandro Wajner
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Kálita Dos Santos Godoy
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rafael Teixeira Ribeiro
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Aline de Mello Gonçalves
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carmen Regla Vargas
- Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Moacir Wajner
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.
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Rigante D. A systematic approach to autoinflammatory syndromes: a spelling booklet for the beginner. Expert Rev Clin Immunol 2017; 13:571-597. [PMID: 28064547 DOI: 10.1080/1744666x.2017.1280396] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Donato Rigante
- Institute of Pediatrics, Periodic Fever Research Center, Fondazione Policlinico Universitario A. Gemelli, Università Cattolica Sacro Cuore, Rome, Italy
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Kellner U, Stöhr H, Weinitz S, Farmand G, Weber BHF. Mevalonate kinase deficiency associated with ataxia and retinitis pigmentosa in two brothers with MVK gene mutations. Ophthalmic Genet 2017; 38:340-344. [PMID: 28095071 DOI: 10.1080/13816810.2016.1227459] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE To report the clinical and molecular genetic findings in two brothers with retinitis pigmentosa (RP) and mevalonate kinase deficiency (MKD). METHODS The brothers were examined clinically and with fundus autofluorescence, near-infrared autofluorescence, and spectral domain optical coherence tomography. Targeted resequencing was done with a custom designed gene panel containing 78 genes associated with RP. Mutations were confirmed by direct Sanger sequencing. RESULTS Both brothers, aged 46 and 47 years, were found to carry compound heterozygous mutations in the MVK gene (c.59A>C, c.1000G>A) encoding mevalonate kinase. They presented with severe ataxia, pseudophakia due to early onset cataract, and progressed retinitis pigmentosa. In one brother with cystoid macular edema, treatment with dorzolamide was beneficial. Serum IgD levels were markedly increased in both brothers and mevalonic acid blood and urine levels were markedly increased in the one brother who could be examined. The disease severity differed between the brothers-one had more severe ataxia and less severe visual deficiency compared to the other. CONCLUSION MKD can be associated with RP and early onset cataract. Most MKD patients developing RP carry the (p.Ala334Thr) mutation. Macular edema can be treated using local dorzolamide.
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Affiliation(s)
- Ulrich Kellner
- a Zentrum für Seltene Netzhauterkrankungen, AugenZentrum Siegburg , MVZ ADTC Siegburg GmbH , Siegburg , Germany.,b RetinaScience , Bonn , Germany
| | - Heidi Stöhr
- c Institut für Humangenetik , Universität Regensburg , Regensburg , Germany
| | - Silke Weinitz
- a Zentrum für Seltene Netzhauterkrankungen, AugenZentrum Siegburg , MVZ ADTC Siegburg GmbH , Siegburg , Germany.,b RetinaScience , Bonn , Germany
| | - Ghazaleh Farmand
- a Zentrum für Seltene Netzhauterkrankungen, AugenZentrum Siegburg , MVZ ADTC Siegburg GmbH , Siegburg , Germany
| | - Bernhard H F Weber
- c Institut für Humangenetik , Universität Regensburg , Regensburg , Germany
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Mukhin NA, Bogdanova MV, Rameev VV, Kozlovskaya LV. Autoinflammatory diseases and kidney involvement. TERAPEVT ARKH 2017; 89:4-20. [DOI: 10.17116/terarkh20178964-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Schlabe S, Schwarze-Zander C, Lohse P, Rockstroh JK. Hyper-IgD and periodic fever syndrome (HIDS) due to compound heterozygosity for G336S and V377I in a 44-year-old patient with a 27-year history of fever. BMJ Case Rep 2016; 2016:bcr-2016-217616. [PMID: 27899390 DOI: 10.1136/bcr-2016-217616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Hereditary autoinflammatory syndromes are a rare, but notable cause of fever of unknown origin. During the last few years, the knowledge of the genetic background has significantly increased. Here, we report a novel pathogenic mutation in the MVK gene as the cause of fever in a 44-year-old male patient with a history of fever over a period of 27 years.
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Affiliation(s)
- Stefan Schlabe
- Department of Internal Medicine I, Universitatsklinikum Bonn, Bonn, Germany
| | | | - Peter Lohse
- Institute for Laboratory Medicine and Human Genetics, Singen, Germany
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Cytokine signatures in hereditary fever syndromes (HFS). Cytokine Growth Factor Rev 2016; 33:19-34. [PMID: 27916611 DOI: 10.1016/j.cytogfr.2016.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/31/2016] [Accepted: 11/14/2016] [Indexed: 02/03/2023]
Abstract
Hereditary fever syndromes (HFS) include a group of disorders characterized by recurrent self-limited episodes of fever accompanied by inflammatory manifestations occurring in the absence of infection or autoimmune reaction. Advances in the genetics of HFS have led to the identification of new gene families and pathways involved in the regulation of inflammation and innate immunity. The key role of several cytokine networks in the pathogenesis of HFS has been underlined by several groups, and supported by the rapid response of patients to targeted cytokine blocking therapies. This can be due to the direct effect of cytokine overproduction or to an absence of receptor antagonist resulting in dysbalance of downstream pro- and anti-inflammatory cytokine networks. The aim of this study was to present an overview and to discuss the major concepts regarding the cellular and molecular immunology of HFS, with a particular focus on their specific cytokine signatures and physiopathological implications. Based on their molecular and cellular mechanisms, HFS have been classified into intrinsic and extrinsic IL-1β activation disorders or inflammasomopathies, and protein misfolding disorders. This review integrates all recent data in an updated classification of HFS.
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Cattalini M, Soliani M, Lopalco G, Rigante D, Cantarini L. Systemic and organ involvement in monogenic autoinflammatory disorders: a global review filtered through internists' lens. Intern Emerg Med 2016; 11:781-91. [PMID: 27221072 DOI: 10.1007/s11739-016-1466-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
Abstract
Monogenic autoinflammatory disorders (AIDs) are rare diseases driven by cytokine-mediated extraordinary sterile inflammation that results from the activation of innate immune pathways. The clinical hallmark of these diseases is the recurrence of stereotyped episodes of systemic- and organ-specific inflammation; the most common systems involved being the skin, musculoskeletal system, gastrointestinal tract, and central nervous system. The autoinflammatory disorders may have a profound impact on the quality of life of the affected patients, and a delayed diagnosis may lead to severe complications, the most dreadful of which is AA-Amyloidosis. This review gives an overview on the four main AIDs, namely familial Mediterranean fever, tumor necrosis factor receptor-associated periodic syndrome, cryopyrinopathies, and mevalonate kinase deficiency, focusing on their clinical phenotype in adults and differential diagnosis, suggesting a diagnostic algorithm, and reviewing the available treatments.
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Affiliation(s)
- Marco Cattalini
- Pediatric Clinic, University of Brescia and Spedali Civili di Brescia, Brescia, Italy
| | - Martina Soliani
- Pediatric Clinic, University of Brescia and Spedali Civili di Brescia, Brescia, Italy
| | - Giuseppe Lopalco
- Interdisciplinary Department of Medicine, Rheumatology Unit, Bari, Italy
| | - Donato Rigante
- Institute of Pediatrics, Fondazione Policlinico Universitario A. Gemelli, Università Cattolica Sacro Cuore, Rome, Italy
| | - Luca Cantarini
- Department of Medical Sciences, Surgery and Neurosciences, Research Center of Systemic Autoinflammatory Diseases and Behçet's Disease Clinic, University of Siena, Siena, Italy.
- Rheumatology Unit, Policlinico Le Scotte, University of Siena, Viale Bracci 1, 53100, Siena, Italy.
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Favier LA, Schulert GS. Mevalonate kinase deficiency: current perspectives. APPLICATION OF CLINICAL GENETICS 2016; 9:101-10. [PMID: 27499643 PMCID: PMC4959763 DOI: 10.2147/tacg.s93933] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mevalonate kinase deficiency (MKD) is a recessively inherited autoinflammatory disorder with a spectrum of manifestations, including the well-defined clinical phenotypes of hyperimmunoglobulinemia D and periodic fever syndrome and mevalonic aciduria. Patients with MKD have recurrent attacks of hyperinflammation associated with fever, abdominal pain, arthralgias, and mucocutaneous lesions, and more severely affected patients also have dysmorphisms and central nervous system anomalies. MKD is caused by mutations in the gene encoding mevalonate kinase, with the degree of residual enzyme activity largely determining disease severity. Mevalonate kinase is essential for the biosynthesis of nonsterol isoprenoids, which mediate protein prenylation. Although the precise pathogenesis of MKD remains unclear, increasing evidence suggests that deficiency in protein prenylation leads to innate immune activation and systemic hyperinflammation. Given the emerging understanding of MKD as an autoinflammatory disorder, recent treatment approaches have largely focused on cytokine-directed biologic therapy. Herein, we review the current genetic and pathologic understanding of MKD, its various clinical phenotypes, and the evolving treatment approach for this multifaceted disorder.
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Affiliation(s)
- Leslie A Favier
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Grant S Schulert
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
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40
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Campbell L, Raheem I, Malemud CJ, Askari AD. The Relationship between NALP3 and Autoinflammatory Syndromes. Int J Mol Sci 2016; 17:ijms17050725. [PMID: 27187378 PMCID: PMC4881547 DOI: 10.3390/ijms17050725] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/06/2016] [Accepted: 05/06/2016] [Indexed: 12/22/2022] Open
Abstract
The nucleotide-binding domain, leucine-rich repeat/pyrin domain-containing-3 (NALP3) inflammasome, which is required for synthesis of interleukin-1β, has been implicated in the pathogenesis of several autoinflammatory syndromes. This review of the literature summarizes the interconnectedness of NALP3 inflammasome with some of these disorders. Familial Mediterranean fever results from a mutation in the Mediterranean fever (MEFV) gene, which encodes the pyrin protein. Previous study results suggest that pyrin suppresses caspase-1 activation, perhaps by competing for the adaptor protein, termed, pyrin domain of apoptosis/speck-like protein containing a caspase-recruitment domain (ACS) which therefore interferes with NALP3 inflammasome activation. The nucleotide-binding domain, leucine-rich repeat/pyrin domain-containing-3 (NALP3) inflammasome is constitutively activated in cryopyrin-associated periodic syndromes due to gain-of-function mutations resulting from point mutations within the neuronal apoptosis inhibitor protein/class 2 transcription factor/heterokaryon incompatibility/telomerase-associated protein-1 (NACHT) domain of the NALP3 protein. Pyogenic arthritis, pyoderma gangrenosum and acne (PAPA) syndrome is caused by mutations in the genes encoding proline-serine-threonine phosphatase interacting protein 1 (PSTPIP1). These PSTPIP1 mutants are thought to bind to pyrin causing an increase in the pyrin domain of apoptosis/speck-like protein containing a caspase-recruitment domain (ASC) pyroptosome assembly leading to procaspase-1 recruitment and therefore its activation. Hyperimmunoglublinemia D syndrome is caused by mevalonate kinase (MVK) deficiency, which may be affected by protein accumulation that leads to NALP3 inflammasome activation. Tumor necrosis factor receptor-associated periodic syndrome is associated with mutations in the tumor necrosis factor receptor superfamily, member 1A (TNFRSF1A) gene which decreases the level of soluble tumor necrosis factor receptor-1 (TNFR1) leading to neutralization of tumor necrosis factor (TNF)-α. In general, these autoinflammatory disorders have shown a clinical response to interleukin-1 (IL-1) antagonists, suggesting that the NALP3 inflammasome serves a critical role in their pathogenesis.
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Affiliation(s)
- Lorna Campbell
- Rheumatology Fellows at University Hospitals Case Medical Center, Cleveland, OH 44106-5076, USA.
| | - Irfan Raheem
- Rheumatology Fellows at University Hospitals Case Medical Center, Cleveland, OH 44106-5076, USA.
| | - Charles J Malemud
- Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine and University Hospitals Case Medical Center, 2061 Cornell Road, Cleveland, OH 44106-5076, USA.
| | - Ali D Askari
- Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine and University Hospitals Case Medical Center, 2061 Cornell Road, Cleveland, OH 44106-5076, USA.
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Zhang S. Natural history of mevalonate kinase deficiency: a literature review. Pediatr Rheumatol Online J 2016; 14:30. [PMID: 27142780 PMCID: PMC4855321 DOI: 10.1186/s12969-016-0091-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/27/2016] [Indexed: 01/02/2023] Open
Abstract
Mevalonate kinase deficiency (MKD), a very rare autosomal recessive autoinflammatory disease with multiple organ involvement, presents clinically as hyperimmunoglobulinemia D syndrome (HIDS), a less severe phenotype and more common form, and mevalonic aciduria (MVA), a more severe phenotype and rare form. MKD is characterized by recurrent febrile attacks that are frequently accompanied by lymphadenopathy, gastrointestinal symptoms, arthralgia, myalgia, skin rash, and aphthous ulcers. Patients with MVA also have intrauterine growth retardation, congenital defects (cataracts, shortened limbs, and dysmorphic craniofacial features), neurological disease, and failure to thrive. Mean age at onset of symptoms is within the first year of life. There is a delay by several years between symptom onset and diagnosis, which is in part attributable to the initial misdiagnosis due to the rarity and nonspecific clinical manifestations of disease. The frequency of recurrent febrile attacks is highest in childhood and gradually decreases after adolescence. MKD is associated with rare long-term complications such as type AA amyloidosis, joint contractures, abdominal adhesions, renal angiomyolipoma, and severe pneumococcal infections. Frequent febrile attacks significantly impair several aspects of patients' and caregivers' quality of life, with an adverse impact on patients' daily activities, education, and employment. Lifespan is generally normal for HIDS whereas MVA can be fatal in early childhood.
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Affiliation(s)
- Shumin Zhang
- Epidemiology, Takeda Development Center Americas, Inc., One Takeda Parkway, Deerfield, IL, 60015, USA.
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42
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Durel CA, Aouba A, Bienvenu B, Deshayes S, Coppéré B, Gombert B, Acquaviva-Bourdain C, Hachulla E, Lecomte F, Touitou I, Ninet J, Philit JB, Messer L, Brouillard M, Girard-Madoux MH, Moutschen M, Raison-Peyron N, Hutin P, Duffau P, Trolliet P, Hatron PY, Heudier P, Cevallos R, Lequerré T, Brousse V, Lesire V, Audia S, Maucort-Boulch D, Cuisset L, Hot A. Observational Study of a French and Belgian Multicenter Cohort of 23 Patients Diagnosed in Adulthood With Mevalonate Kinase Deficiency. Medicine (Baltimore) 2016; 95:e3027. [PMID: 26986117 PMCID: PMC4839898 DOI: 10.1097/md.0000000000003027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The aim of this study was to describe the clinical and biological features of Mevalonate kinase deficiency (MKD) in patients diagnosed in adulthood. This is a French and Belgian observational retrospective study from 2000 to 2014. To constitute the cohort, we cross-check the genetic and biochemical databases. The clinical, enzymatic, and genetic data were gathered from medical records. Twenty-three patients were analyzed. The mean age at diagnosis was 40 years, with a mean age at onset of symptoms of 3 years. All symptomatic patients had fever. Febrile attacks were mostly associated with arthralgia (90.9%); lymphadenopathy, abdominal pain, and skin lesions (86.4%); pharyngitis (63.6%); cough (59.1%); diarrhea, and hepatosplenomegaly (50.0%). Seven patients had psychiatric symptoms (31.8%). One patient developed recurrent seizures. Three patients experienced renal involvement (13.6%). Two patients had angiomyolipoma (9.1%). All but one tested patients had elevated serum immunoglobulin (Ig) D level. Twenty-one patients had genetic diagnosis; most of them were compound heterozygote (76.2%). p.Val377Ile was the most prevalent mutation. Structural articular damages and systemic AA amyloidosis were the 2 most serious complications. More than 65% of patients displayed decrease in severity and frequency of attacks with increasing age, but only 35% achieved remission. MKD diagnosed in adulthood shared clinical and genetic features with classical pediatric disease. An elevated IgD concentration is a good marker for MKD in adults. Despite a decrease of severity and frequency of attacks with age, only one-third of patients achieved spontaneous remission.
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Affiliation(s)
- Cécile-Audrey Durel
- From the Internal Medicine Department, Edouard Herriot Hospital, Lyon (C-AD, BC, JN, M-HG-M, AH); Internal Medicine Department, Côte de Nacre Hospital, Caen (AA, BB, SD); Medicine and Rheumatology Department, Saint-Louis Hospital, La Rochelle (BG); Inborn Errors of Metabolism Laboratory, Civil Hospital of Lyon, Bron (CA-B); Internal Medicine Department, Claude Huriez Hospital, Lille (EH, P-YH); Polyvalent Medicine Department, Cornouaille Hospital Center, Quimper (FL, PH); Autoinflammatory Diseases Medical Unit, Arnaud Villeuneuve Hospital, Montpellier (IT); Nephrology Department, Metropole Savoie Hospital Center, Chambéry (J-BP); Rheumatology Department, Louis Pasteur Hospital, Colmar (LM); Hematology Department, Arras Hospital Center, Arras, France (MB); Internal Medicine Department, Sart Tilman, Liège, Belgique (MM); Dermatology and Allergology Department, Saint-Eloi Hospital, Montpellier (NR-P); Internal Medicine Department, Saint-André Hospital, Bordeaux (PD); Nephrology Department, Lyon Sud Hospital Center, Pierre-Bénite (PT); Hematology Department, Princesse Grace Hospital Center, Monaco (PH); Internal Medicine Department, Saint-Vincent Hospital Center, Strasbourg (RC); Rheumatology Department, Charles Nicole Hospital, Rouen (TL); Department of Pediatrics, Necker-Enfants Malades Hospital, Paris (VB); Diabetology and Internal Medicine Department, Blois Hospital Center, Blois (VL); Internal Medicine Department, Bocage Central, Dijon (SA); Service de Biostatistique, Hospices civiles de Lyon, Université de Lyon 1, Villeurbanne; CNRS, UMR5558, Laboratoire de Biométrie et Biologie Evolutive, Equipe Biostatistique-Santé, Villeurbanne (DM-B); and Department of Biochemical Genetics, Hospital and Institut Cochin, Paris (LC), France
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Liu Y, Wang J, Qin Y, Huang C, Archacki S, Ma J, Li D, Liu M. Identification of three mutations in the MVK gene in six patients associated with disseminated superficial actinic porokeratosis. Clin Chim Acta 2016; 454:124-9. [DOI: 10.1016/j.cca.2016.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/08/2016] [Accepted: 01/11/2016] [Indexed: 12/19/2022]
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Golpour M, Ghaffari J. Hyperimmunoglobulin-D Syndrome in Children: A Review Article. JOURNAL OF PEDIATRICS REVIEW 2016. [DOI: 10.17795/jpr-4593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Piram M, Koné-Paut I. [Recurrent fevers in childhood]. Presse Med 2015; 44:1266-75. [PMID: 26549686 DOI: 10.1016/j.lpm.2015.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 07/07/2015] [Accepted: 09/03/2015] [Indexed: 10/22/2022] Open
Abstract
Recurrent fevers are defined as multiple stereotypical febrile episodes separated by spontaneous symptom-free intervals and occurring for months and years. Hereditary recurrent fevers are rare prototype Mendelian diseases due to inherited mutations in genes encoding partners of the innate immunity. Recurrent episodes of fever plus acute features of inflammation starting during childhood with family history are the main clues for suspecting HRF. Their common associated complication is AA amyloidosis. The diagnosis is made on clinical grounds but the genetic diagnosis may contribute in most cases of monogenic hereditary recurrent fevers. Recurrent fevers must be distinguished from intermittent fevers, mostly infectious, characterized by variation in associated symptoms from episode-to-episode and without periodicity.
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Affiliation(s)
- Maryam Piram
- AP-HP, université Paris Sud, CHU de Bicêtre, centre de référence des maladies auto-inflammatoires de l'enfant (CeRéMAI)(1), service de rhumatologie pédiatrique, 78, rue du Général-Leclerc, 94270 le Kremlin-Bicêtre, France.
| | - Isabelle Koné-Paut
- AP-HP, université Paris Sud, CHU de Bicêtre, centre de référence des maladies auto-inflammatoires de l'enfant (CeRéMAI)(1), service de rhumatologie pédiatrique, 78, rue du Général-Leclerc, 94270 le Kremlin-Bicêtre, France
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Browne C, Timson DJ. In SilicoPrediction of the Effects of Mutations in the Human Mevalonate Kinase Gene: Towards a Predictive Framework for Mevalonate Kinase Deficiency. Ann Hum Genet 2015; 79:451-9. [DOI: 10.1111/ahg.12126] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 04/29/2015] [Accepted: 05/21/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Claire Browne
- School of Biological Sciences; Queen's University Belfast, Medical Biology Centre; 97 Lisburn Road Belfast BT9 7BL UK
| | - David J. Timson
- School of Biological Sciences; Queen's University Belfast, Medical Biology Centre; 97 Lisburn Road Belfast BT9 7BL UK
- Institute for Global Food Security; Queen's University Belfast; 18-30 Malone Road Belfast BT9 5BN UK
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Diagnostic Value of Urinary Mevalonic Acid Excretion in Patients with a Clinical Suspicion of Mevalonate Kinase Deficiency (MKD). JIMD Rep 2015; 27:33-8. [PMID: 26409462 DOI: 10.1007/8904_2015_489] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 07/28/2015] [Accepted: 07/29/2015] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE In patients suffering from mevalonate kinase deficiency (MKD), the reduced enzyme activity leads to an accumulation of mevalonic acid which is excreted in the urine. This study aims to evaluate the diagnostic value of urinary mevalonic acid measurement in patients with a clinical suspicion of mevalonate kinase deficiency. METHODS In this single-center, retrospective analysis, all patients in whom both measurement of mevalonic acid and genetic testing had been performed in the preceding 17 years have been included. The presence of two pathogenic MVK mutations or demonstration of decreased enzyme activity was considered to be the gold standard for the diagnosis of MKD. RESULTS Sixty-one patients were included in this study. Thirteen of them harbored two MVK mutations; twelve of them showed elevated levels of mevalonic acid. Forty-eight patients did not harbor any MVK mutations, yet five of them excreted increased amounts of mevalonic acid. This corresponds to a sensitivity of 92%, a specificity of 90%, a positive predictive value of 71%, and a negative predictive value of 98%. The positive likelihood ratio is 10 and the negative likelihood ratio is 0.09. CONCLUSION MKD seems very unlikely in patients with a normal mevalonic acid excretion, but it cannot be excluded completely. Further, a positive urinary mevalonic acid excretion still requires MVK analysis to confirm the diagnosis of MKD. Therefore, detection of urinary mevalonic acid should not be mandatory before genetic testing. However, as long as genetic testing is not widely available and affordable, measurement of urinary mevalonic acid is a fair way to select patients for MVK gene analysis or enzyme assay.
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Treatment of hyperimmunoglobulinemia D syndrome with biologics in children: review of the literature and Finnish experience. Eur J Pediatr 2015; 174:707-14. [PMID: 25721923 DOI: 10.1007/s00431-015-2505-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/23/2015] [Accepted: 02/10/2015] [Indexed: 12/14/2022]
Abstract
UNLABELLED Hyperimmunoglobulinemia D syndrome (HIDS) is an autoinflammatory disorder that is caused by mevalonate kinase deficiency (MKD). Recent advances in the pathogenesis of MKD, including the proposed mechanisms of inflammasome activation, provide the basis for the development of new treatment modalities. So far, feedback on the treatment of HIDS with biological medicines has come from case reports with limited numbers of patients. In this review, we summarize the data that is currently available on the treatment of HIDS in children, with the emphasis on new therapies, and present three Finnish pediatric cases treated with anakinra. Case reports have been published on 33 pediatric HIDS patients who have been treated with biological medicines, and in some cases, they were treated with more than one drug. Of these patients, 21 were treated with anakinra and 16 with etanercept, resulting in complete or partial responses in 90 and 50% of cases, respectively. A further five patients were treated with canakinumab, with complete or partial responses. CONCLUSION The accumulating evidence on the efficacy and safety of biological drugs in pediatric HIDS suggests that the anti-interleukin-1 agent anakinra is the drug of choice for HIDS in children. WHAT IS KNOWN • Various biologic drugs have been tried for the treatment of HIDS. What is New: • Based on the 90% response rate, anakinra seems to be the drug of choice for HIDS in children.
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Esposito S, Ascolese B, Senatore L, Bosis S, Verrecchia E, Cantarini L, Rigante D. Current advances in the understanding and treatment of mevalonate kinase deficiency. Int J Immunopathol Pharmacol 2015; 27:491-8. [PMID: 25572728 DOI: 10.1177/039463201402700404] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Mevalonate kinase deficiency (MKD) is a rare autosomal recessive autoinflammatory metabolic disease that is caused by mutations in the MVK gene. Patients with MKD typically have an early onset in infancy. MKD is characterized by recurrent episodes of high fever, abdominal distress, diffuse joint pain, and skin rashes. In a subset of patients, MKD is also associated with elevated serum immunoglobulin D (IgD) levels (hyperimmunoglobulinemia D syndrome, HIDS). The clinical phenotype of MKD varies widely and depends on the severity of the impaired mevalonate kinase activity. Complete impairment results in the severe metabolic disease, mevalonic aciduria, while a partial deficiency results in a broad spectrum of clinical presentation, including HIDS. The precise molecular mechanisms behind the elevated serum IgD levels and inflammation that occurs in MKD remain unknown. Children who exhibit symptoms of MKD should be tested for mutations in the MKD gene. However, the complexity of MKD often results in delays in its definitive diagnosis and the outcome in adult age is not completely known. Therapeutic options for MKD are based on limited data and include non-steroidal anti-inflammatory drugs, corticosteroids, and biological agents that target specific cytokine pathways. In recent years, some studies have reported promising results for new biological drugs; however, these cases have failed to achieve satisfactory remission. Therefore, further studies are needed to understand the pathogenesis of MKD and identify innovative therapeutic tools for its management.
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Affiliation(s)
- S Esposito
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - B Ascolese
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - L Senatore
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - S Bosis
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - E Verrecchia
- Periodic Fever Research Center, Department of Internal Medicine, Università Cattolica Sacro Cuore, Rome, Italy
| | - L Cantarini
- Research Center of Systemic Autoimmune and Autoinflammatory Diseases, Rheumatology Unit, Policlinico Le Scotte, University of Siena, Siena, Italy
| | - D Rigante
- Institute of Pediatrics, Universita Cattolica Sacro Cuore, Rome, Italy
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de Jesus AA, Canna SW, Liu Y, Goldbach-Mansky R. Molecular mechanisms in genetically defined autoinflammatory diseases: disorders of amplified danger signaling. Annu Rev Immunol 2015; 33:823-74. [PMID: 25706096 DOI: 10.1146/annurev-immunol-032414-112227] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Patients with autoinflammatory diseases present with noninfectious fever flares and systemic and/or disease-specific organ inflammation. Their excessive proinflammatory cytokine and chemokine responses can be life threatening and lead to organ damage over time. Studying such patients has revealed genetic defects that have helped unravel key innate immune pathways, including excessive IL-1 signaling, constitutive NF-κB activation, and, more recently, chronic type I IFN signaling. Discoveries of monogenic defects that lead to activation of proinflammatory cytokines have inspired the use of anticytokine-directed treatment approaches that have been life changing for many patients and have led to the approval of IL-1-blocking agents for a number of autoinflammatory conditions. In this review, we describe the genetically characterized autoinflammatory diseases, we summarize our understanding of the molecular pathways that drive clinical phenotypes and that continue to inspire the search for novel treatment targets, and we provide a conceptual framework for classification.
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Affiliation(s)
- Adriana Almeida de Jesus
- Translational Autoinflammatory Diseases Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, Maryland 20892;
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