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Zhang JM, Hao LL, Qiu WJ, Zhang HW, Chen T, Ji WJ, Zhang Y, Liu F, Gu XF, Yang SH, Han LS. Clinical, biochemical and genetic characteristics and long-term follow-up of five patients with malonyl-CoA decarboxylase deficiency. Brain Dev 2024; 46:286-293. [PMID: 39069445 DOI: 10.1016/j.braindev.2024.07.001] [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: 02/08/2024] [Revised: 07/04/2024] [Accepted: 07/04/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND Malonyl-CoA decarboxylase (MLYCD) deficiency, also known as malonic aciduria (MAD), is a rare autosomal recessive inherited metabolic defect. In this study, we aimed to investigate the clinical and molecular features of five patients with MAD in order to increase clinicians' awareness of the disease. METHODS Sanger sequencing was used to detect and genetically analyze the MLYCD variations in the preexisting patients and their parents. RESULTS Five patients with MAD (5 months to 9.6 years old; two males and three females) rarely exhibited metabolic decompensation episodes or seizures. All patients exhibited varying degrees of developmental delay and hypotonia. Our study expands the spectrum of variants of the MLYCD gene. MLYCD gene variations were detected in all five patients, and five new variants were identified: c.60delG (p.Arg21Glyfs*52), c.928C > T (p.Arg310*), c.1293G > T (p.Trp431Cys), c.721T > C (p.Ser241Pro), and Exons 4-5 deletion. Additionally, there is no correlation between various genotypes and phenotypes. CONCLUSION A high-medium-chain triglyceride and low-long-chain triglyceride diet supplemented with L-carnitine was effective in most patients and may improve cardiomyopathy and muscle weakness. Newborn screening may aid in the early diagnosis, treatment, and prognosis of this rare disorder.
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Affiliation(s)
- J M Zhang
- Department of Pediatric Endocrinology and Genetics, Hangzhou Children's Hospital, Hang Zhou, 310000 Zhe Jiang, China; Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - L L Hao
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - W J Qiu
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - H W Zhang
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - T Chen
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - W J Ji
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Y Zhang
- Department of Pediatric Endocrinology and Genetics, Hangzhou Children's Hospital, Hang Zhou, 310000 Zhe Jiang, China
| | - F Liu
- Department of Pediatric Endocrinology and Genetics, Hangzhou Children's Hospital, Hang Zhou, 310000 Zhe Jiang, China
| | - X F Gu
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - S H Yang
- Department of Pediatric Endocrinology and Genetics, Hangzhou Children's Hospital, Hang Zhou, 310000 Zhe Jiang, China.
| | - L S Han
- Department of Pediatric Endocrinology and Genetic Metabolism, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China.
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Monda E, Bakalakos A, Syrris P, Mohiddin S, Ferdinandusse S, Murphy E, Elliott PM. Cardiovascular involvement in later-onset malonyl-CoA decarboxylase deficiency: Case studies and literature review. Eur J Med Genet 2023; 66:104885. [PMID: 37979716 DOI: 10.1016/j.ejmg.2023.104885] [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: 05/29/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Malonyl-CoA decarboxylase deficiency (MLYCDD) is an ultra-rare inherited metabolic disorder, characterized by multi-organ involvement manifesting during the first few months of life. Our aim was to describe the clinical, biochemical, and genetic characteristics of patients with later-onset MLYCDD. METHODS Clinical and biochemical characteristics of two patients aged 48 and 29 years with a confirmed molecular diagnosis of MLYCDD were examined. A systematic review of published studies describing the characteristics of cardiovascular involvement of patients with MLYCDD was performed. RESULTS Two patients diagnosed with MLYCDD during adulthood were identified. The first presented with hypertrophic cardiomyopathy and ventricular pre-excitation and the second with dilated cardiomyopathy (DCM) and mild-to-moderate left ventricular (LV) systolic dysfunction. No other clinical manifestation typical of MLYCDD was observed. Both patients showed slight increase in malonylcarnitine in their plasma acylcarnitine profile, and a reduction in malonyl-CoA decarboxylase activity. During follow-up, no deterioration of LV systolic function was observed. The systematic review identified 33 individuals with a genetic diagnosis of MLYCDD (median age 6 months [IQR 1-12], 22 males [67%]). Cardiovascular involvement was observed in 64% of cases, with DCM the most common phenotype. A modified diet combined with levocarnitine supplementation resulted in the improvement of LV systolic function in most cases. After a median follow-up of 8 months, 3 patients died (two heart failure-related and one arrhythmic death). CONCLUSIONS For the first time this study describes a later-onset phenotype of MLYCDD patients, characterized by single-organ involvement, mildly reduced enzyme activity, and a benign clinical course.
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Affiliation(s)
- Emanuele Monda
- Inherited and Rare Cardiovascular Diseases, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy; Institute of Cardiovascular Science, University College of London, London, UK.
| | | | - Petros Syrris
- Institute of Cardiovascular Science, University College of London, London, UK
| | - Saidi Mohiddin
- Barts Health NHS Trust, London, UK; Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Sacha Ferdinandusse
- Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Elaine Murphy
- Charles Dent Metabolic Unit, The National Hospital for Neurology and Neurosurgery, London, UK
| | - Perry Mark Elliott
- Institute of Cardiovascular Science, University College of London, London, UK; Barts Health NHS Trust, London, UK
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Yang C, Li Q, Lin Y, Wang Y, Shi H, Huang L, Zhao W, Xiang H, Zhu J. MCD Inhibits Lipid Deposition in Goat Intramuscular Preadipocytes. Genes (Basel) 2023; 14:440. [PMID: 36833367 PMCID: PMC9956415 DOI: 10.3390/genes14020440] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/20/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Malonyl-CoA decarboxylase (MCD) is a major regulator of fatty acid oxidation catalyzing the decarboxylation of malonyl coenzyme A (malonyl-CoA). Although its involvement in human diseases has been well studied, its role in intramuscular fat (IMF) deposition remains unknown. In this present study, 1726 bp of MCD cDNA was cloned (OM937122) from goat liver, including 5'UTR of 27 bp, 3'UTR of 199 bp, and CDS of 1500 bp, encoding 499 amino acids. In this present study, although the overexpression of MCD increased the mRNA expression of FASN and DGAT2, the expression of ATGL and ACOX1 was also activated significantly and resulted in a decrease in cellular lipid deposition in goat intramuscular preadipocytes. Meanwhile, the silencing of MCD increased the cellular lipid deposition and was accompanied by the expression activation of DGAT2 and the expression suppression of ATGL and HSL, despite the expression suppression of genes related to fatty acid synthesis, including ACC and FASN. However, the expression of DGAT1 was not affected significantly (p > 0.05) by the expression alteration of MCD in this present study. Furthermore, 2025 bp of MCD promoter was obtained and predicted to be regulated by C/EBPα, SP1, SREBP1, and PPARG. In summary, although different pathways may respond to the expression alteration of MCD, the expression of MCD was negatively correlated with the cellular lipid deposition in goat intramuscular preadipocytes. These data may be beneficial for enhancing our understanding of the regulation of IMF deposition in goats.
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Affiliation(s)
- Changheng Yang
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
| | - Qi Li
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
| | - Yaqiu Lin
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu 610041, China
| | - Yong Wang
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu 610041, China
| | - Hengbo Shi
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Lian Huang
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
| | - Wangsheng Zhao
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Hua Xiang
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu 610041, China
| | - Jiangjiang Zhu
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu 610041, China
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Xu F, Wu Y, Huang J, Zhou Y, Xu F, Duan J, Li H. Case report: A novel 5'-UTR-exon1-intron1 deletion in MLYCD in an IVF child with malonyl coenzyme A decarboxylase deficiency and literature review. Front Med (Lausanne) 2023; 10:1160879. [PMID: 37206471 PMCID: PMC10189016 DOI: 10.3389/fmed.2023.1160879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/07/2023] [Indexed: 05/21/2023] Open
Abstract
The subject of the study is an 11-month old IVF baby girl with the typical clinical manifestation of malonyl coenzyme A decarboxylase deficiency, including developmental delay, limb weakness, cardiomyopathy, and excessive excretion of malonic acid and methylmalonic acid. Whole genome sequencing (WGS) revealed a novel heterozygous nonsense mutation (c.672delG, p.Trp224Ter) in the MLYCD gene of the proband and her father and a novel heterozygous deletion in 5'-UTR-exon1-intron1 of the MLYCD gene of the proband and her mother. The patient's cardiac function and limb weakness improved considerably after 3 months of a low-fat diet supplemented with L-carnitine. Furthermore, mapping of gene mutations and clinical manifestations was done by case collection.
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Affiliation(s)
- Fang Xu
- Cardiology Treatment Center, Jiangxi Provincial Children's Hospital, Nanchang, China
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Yangyang Wu
- Cardiology Treatment Center, Jiangxi Provincial Children's Hospital, Nanchang, China
- Pediatric Medical Department, Nanchang University, Nanchang, China
| | - Jiyi Huang
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Yunguo Zhou
- Cardiology Treatment Center, Jiangxi Provincial Children's Hospital, Nanchang, China
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Fei Xu
- Cardiology Treatment Center, Jiangxi Provincial Children's Hospital, Nanchang, China
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Junkai Duan
- Cardiology Treatment Center, Jiangxi Provincial Children's Hospital, Nanchang, China
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
- *Correspondence: Junkai Duan
| | - Hong Li
- JXHC Key Laboratory of Children's Cardiovascular Diseases, Jiangxi Provincial Children's Hospital, Nanchang, China
- Hong Li
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Zhao C, Peng H, Jiang N, Liu Y, Chen Y, Liu J, Guo Q, Wu Z, Wang L. A case of malonyl coenzyme A decarboxylase deficiency with novel mutations and literature review. Front Pediatr 2023; 11:1133134. [PMID: 37144154 PMCID: PMC10152364 DOI: 10.3389/fped.2023.1133134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/24/2023] [Indexed: 05/06/2023] Open
Abstract
Introduction Malonyl coenzyme A decarboxylase deficiency is caused by an abnormality in the MLYCD gene. The clinical manifestations of the disease involve multisystem and multiorgan. Methods We collected and analyzed a patient's clinical characteristics, genetic chain of evidence and RNA-seq. We use the search term "Malonyl-CoA Decarboxylase Deficiency" on Pubmed to collect cases reported. Results We report a 3-year-old girl who is presented with developmental retardation, myocardial damage and elevated C3DC. High-throughput sequencing identified heterozygous mutation (c.798G>A, p.Q266?) in the patient inherited from her father. The other heterozygous mutation (c.641+5G>C) was found in the patient inherited from her mother. RNA-seq showed that there were 254 differential genes in this child, among which 153 genes were up-regulated and 101 genes were down-regulated. Exon jumping events occurred in exons encoding PRMT2 on the positive chain of chromosome 21, which led to abnormal splicing of PRMT2. (P<0.05, FDR<0.05). The result of SNP showed that there were multiple mutation sites on chromosome 1, which may affect the downstream gene variation at the DNA level. The literature review identified 54 cases described since 1984. Discussion It is the first report about the locus, adding a new item to the MLYCD mutation library. Developmental retardation and cardiomyopathy are the most common clinical manifestations, with commonly elevated malonate and malonyl carnitine levels in children.
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Affiliation(s)
- Cong Zhao
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Peng
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nanchuan Jiang
- Department of Radiology,Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yalan Liu
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Chen
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Liu
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Guo
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zubo Wu
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Wang
- Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Shekhovtsov SV, Bulakhova NA, Tsentalovich YP, Zelentsova EA, Meshcheryakova EN, Poluboyarova TV, Berman DI. Metabolomic Analysis Reveals That the Moor Frog Rana arvalis Uses Both Glucose and Glycerol as Cryoprotectants. Animals (Basel) 2022; 12:ani12101286. [PMID: 35625132 PMCID: PMC9137551 DOI: 10.3390/ani12101286] [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: 04/12/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 11/27/2022] Open
Abstract
Simple Summary The moor frog Rana arvalis can tolerate freezing to low temperatures, up to −16 °C. We performed metabolomic analysis of the liver and hindlimb muscles of frozen and control R. arvalis. We found that the moor frog synthesizes glucose and glycerol in similar concentrations as low molecular weight cryoprotectants. This is the first such case reported for the genus Rana, which was believed to use glucose only. We found that freezing upregulates glycolysis, with the accumulation of several end products: lactate, alanine, ethanol, and, possibly, 2,3-butanediol. To our knowledge, this is also the first report of ethanol as an end product of glycolysis in terrestrial vertebrates. We observed highly increased concentrations of nucleotide degradation products, implying high level of stress. We found almost no signs of adaptations to reoxygenation stress, with overall low levels of antioxidants. We also performed metabolomics analysis of subcutaneous ice that was found to contain glucose, glycerol, and several other substances. Abstract The moor frog Rana arvalis is one of a few amphibians that can tolerate freezing to low temperatures, up to −16 °C. In this study, we performed metabolomic analysis of the liver and hindlimb muscles of frozen and control R. arvalis. We found that the moor frog synthesizes glucose and glycerol in similar concentrations as low molecular weight cryoprotectants. This is the first such case reported for the genus Rana, which was believed to use glucose only. We found that freezing upregulates glycolysis, with the accumulation of several end products: lactate, alanine, ethanol, and, possibly, 2,3-butanediol. To our knowledge, this is also the first report of ethanol as an end product of glycolysis in terrestrial vertebrates. We observed highly increased concentrations of nucleotide degradation products, implying high level of stress. The Krebs cycle arrest resulted in high concentrations of succinate, which is common for animals. However, we found almost no signs of adaptations to reoxygenation stress, with overall low levels of antioxidants. We also performed metabolomics analysis of subcutaneous ice that was found to contain glucose, glycerol, and several other substances.
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Affiliation(s)
- Sergei V. Shekhovtsov
- Institute of the Biological Problems of the North FEB RAS, 685000 Magadan, Russia; (N.A.B.); (E.N.M.); (D.I.B.)
- Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia;
- Correspondence:
| | - Nina A. Bulakhova
- Institute of the Biological Problems of the North FEB RAS, 685000 Magadan, Russia; (N.A.B.); (E.N.M.); (D.I.B.)
| | - Yuri P. Tsentalovich
- International Tomography Center SB RAS, 630090 Novosibirsk, Russia; (Y.P.T.); (E.A.Z.)
| | - Ekaterina A. Zelentsova
- International Tomography Center SB RAS, 630090 Novosibirsk, Russia; (Y.P.T.); (E.A.Z.)
- Department of Chemical and Biological Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Ekaterina N. Meshcheryakova
- Institute of the Biological Problems of the North FEB RAS, 685000 Magadan, Russia; (N.A.B.); (E.N.M.); (D.I.B.)
| | | | - Daniil I. Berman
- Institute of the Biological Problems of the North FEB RAS, 685000 Magadan, Russia; (N.A.B.); (E.N.M.); (D.I.B.)
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Heterogenous Clinical Landscape in a Consanguineous Malonic Aciduria Family. Int J Mol Sci 2021; 22:ijms222312633. [PMID: 34884438 PMCID: PMC8658006 DOI: 10.3390/ijms222312633] [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: 10/16/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 11/27/2022] Open
Abstract
Malonic aciduria is an extremely rare inborn error of metabolism due to malonyl-CoA decarboxylase deficiency. This enzyme is encoded by the MLYCD (Malonyl-CoA Decarboxylase) gene, and the disease has an autosomal recessive inheritance. Malonic aciduria is characterized by systemic clinical involvement, including neurologic and digestive symptoms, metabolic acidosis, hypoglycemia, failure to thrive, seizures, developmental delay, and cardiomyopathy. We describe here two index cases belonging to the same family that, despite an identical genotype, present very different clinical pictures. The first case is a boy with neonatal metabolic symptoms, abnormal brain MRI, and dilated cardiomyopathy. The second case, the cousin of the first patient in a consanguineous family, showed later symptoms, mainly with developmental delay. Both patients showed high levels of malonylcarnitine on acylcarnitine profiles and malonic acid on urinary organic acid chromatographies. The same homozygous pathogenic variant was identified, c.346C > T; p. (Gln116*). We also provide a comprehensive literature review of reported cases. A review of the literature yielded 52 cases described since 1984. The most common signs were developmental delay and cardiomyopathy. Increased levels of malonic acid and malonylcarnitine were constant. Presentations ranged from neonatal death to patients surviving past adolescence. These two cases and reported patients in the literature highlight the inter- and intrafamilial variability of malonic aciduria.
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Abstract
Malonyl-CoA, a product of acetyl-CoA carboxylase is a metabolic intermediate in lipogenic tissues that include liver and adipose tissue, where it is involved in the de novo fatty acid synthesis and elongation. Malonyl-CoA decarboxylase (MLYCD, E.C.4.1.1.9), a 55-kDa enzyme catalyses the conversion of malonyl-CoA to acetyl-CoA and carbon dioxide, thus providing a route for disposal of malonyl-CoA from mitochondria and peroxisomes, whereas in the cytosol, the malonyl-CoA pool is regulated by the balance of MLYCD and acetyl-CoA carboxylase activities. So far, 34 cases with different MLYCD gene defects comprising point mutations, stop codons, and frameshift mutations have been reported in the literature. Here, we describe the follow-up of a patient affected by malonic aciduria upon neonatal onset. Molecular analysis showed novel homozygous mutations in the MLYCD gene. Our findings expand the number of reported cases and add a novel variant to the repertoire of MLYCD mutations.
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Fadó R, Rodríguez-Rodríguez R, Casals N. The return of malonyl-CoA to the brain: Cognition and other stories. Prog Lipid Res 2020; 81:101071. [PMID: 33186641 DOI: 10.1016/j.plipres.2020.101071] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 12/11/2022]
Abstract
Nutrients, hormones and the energy sensor AMP-activated protein kinase (AMPK) tightly regulate the intracellular levels of the metabolic intermediary malonyl-CoA, which is a precursor of fatty acid synthesis and a negative regulator of fatty acid oxidation. In the brain, the involvement of malonyl-CoA in the control of food intake and energy homeostasis has been known for decades. However, recent data uncover a new role in cognition and brain development. The sensing of malonyl-CoA by carnitine palmitoyltransferase 1 (CPT1) proteins regulates a variety of functions, such as the fate of neuronal stem cell precursors, the motility of lysosomes in developing axons, the trafficking of glutamate receptors to the neuron surface (necessary for proper synaptic function) and the metabolic coupling between astrocytes and neurons. We discuss the relevance of those recent findings evidencing how nutrients and metabolic disorders impact cognition. We also enumerate all nutritional and hormonal conditions that are known to regulate malonyl-CoA levels in the brain, reflect on protein malonylation as a new post-translational modification, and give a reasoned vision of the opportunities and challenges that future research in the field could address.
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Affiliation(s)
- Rut Fadó
- Basic Sciences Department, Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, E-08195 Sant Cugat del Vallès, Spain; Institut de Neurociències, Universitat Autònoma de Barcelona, 08193, Bellaterra, Cerdanyola del Vallès, Spain.
| | - Rosalía Rodríguez-Rodríguez
- Basic Sciences Department, Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, E-08195 Sant Cugat del Vallès, Spain.
| | - Núria Casals
- Basic Sciences Department, Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, E-08195 Sant Cugat del Vallès, Spain; Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain.
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Chapel-Crespo C, Gavrilov D, Sowa M, Myers J, Day-Salvatore DL, Lynn H, Regier D, Starin D, Steenari M, Schoonderwoerd K, Abdenur JE. Clinical, biochemical and molecular characteristics of malonyl-CoA decarboxylase deficiency and long-term follow-up of nine patients. Mol Genet Metab 2019; 128:113-121. [PMID: 31395333 DOI: 10.1016/j.ymgme.2019.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/22/2019] [Accepted: 07/25/2019] [Indexed: 11/18/2022]
Affiliation(s)
| | | | | | | | | | - Haley Lynn
- Children's Hospital of Wisconsin, Milwaukee, WI, USA
| | - Debra Regier
- Children's National Medical Center, Washington DC, USA
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Wang T, Xue C, Zhang T, Wang Y. The improvements of functional ingredients from marine foods in lipid metabolism. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.09.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yun X, Dong S, Hu Q, Dai Y, Xia Y. 1H NMR-based metabolomics approach to investigate the urine samples of collagen-induced arthritis rats and the intervention of tetrandrine. J Pharm Biomed Anal 2018; 154:302-311. [DOI: 10.1016/j.jpba.2018.03.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/11/2018] [Accepted: 03/13/2018] [Indexed: 12/22/2022]
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Ambati CSR, Yuan F, Abu-Elheiga LA, Zhang Y, Shetty V. Identification and Quantitation of Malonic Acid Biomarkers of In-Born Error Metabolism by Targeted Metabolomics. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:929-938. [PMID: 28315235 DOI: 10.1007/s13361-017-1631-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/13/2017] [Accepted: 02/17/2017] [Indexed: 06/06/2023]
Abstract
Malonic acid (MA), methylmalonic acid (MMA), and ethylmalonic acid (EMA) metabolites are implicated in various non-cancer disorders that are associated with inborn-error metabolism. In this study, we have slightly modified the published 3-nitrophenylhydrazine (3NPH) derivatization method and applied it to derivatize MA, MMA, and EMA to their hydrazone derivatives, which were amenable for liquid chromatography- mass spectrometry (LC-MS) quantitation. 3NPH was used to derivatize MA, MMA, and EMA, and multiple reaction monitoring (MRM) transitions of the corresponding derivatives were determined by product-ion experiments. Data normalization and absolute quantitation were achieved by using 3NPH derivatized isotopic labeled compounds 13C2-MA, MMA-D3, and EMA-D3. The detection limits were found to be at nanomolar concentrations and a good linearity was achieved from nanomolar to millimolar concentrations. As a proof of concept study, we have investigated the levels of malonic acids in mouse plasma with malonyl-CoA decarboxylase deficiency (MCD-D), and we have successfully applied 3NPH method to identify and quantitate all three malonic acids in wild type (WT) and MCD-D plasma with high accuracy. The results of this method were compared with that of underivatized malonic acid standards experiments that were performed using hydrophilic interaction liquid chromatography (HILIC)-MRM. Compared with HILIC method, 3NPH derivatization strategy was found to be very efficient to identify these molecules as it greatly improved the sensitivity, quantitation accuracy, as well as peak shape and resolution. Furthermore, there was no matrix effect in LC-MS analysis and the derivatized metabolites were found to be very stable for longer time. Graphical Abstract ᅟ.
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Affiliation(s)
- Chandra Shekar R Ambati
- Metabolomics Core Facility, Molecular and Cellular Biology, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Furong Yuan
- Department of Biochemistry, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Lutfi A Abu-Elheiga
- Department of Biochemistry, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Yiqing Zhang
- Metabolomics Core Facility, Molecular and Cellular Biology, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Vivekananda Shetty
- Metabolomics Core Facility, Molecular and Cellular Biology, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, TX, 77030, USA.
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14
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Ling B, Liu Y, Li X, Wang Z, Bi S. Identification of the active site of human mitochondrial malonyl-coenzyme a decarboxylase: A combined computational study. Proteins 2016; 84:792-802. [PMID: 26948533 DOI: 10.1002/prot.25029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 02/05/2016] [Accepted: 02/19/2016] [Indexed: 11/06/2022]
Abstract
Malonyl-CoA decarboxylase (MCD) can control the level of malonyl-CoA in cell through the decarboxylation of malonyl-CoA to acetyl-CoA, and plays an essential role in regulating fatty acid metabolism, thus it is a potential target for drug discovery. However, the interactions of MCD with CoA derivatives are not well understood owing to unavailable crystal structure with a complete occupancy in the active site. To identify the active site of MCD, molecular docking and molecular dynamics simulations were performed to explore the interactions of human mitochondrial MCD (HmMCD) and CoA derivatives. The findings reveal that the active site of HmMCD indeed resides in the prominent groove which resembles that of CurA. However, the binding modes are slightly different from the one observed in CurA due to the occupancy of the side chain of Lys183 from the N-terminal helical domain instead of the adenine ring of CoA. The residues 300 - 305 play an essential role in maintaining the stability of complex mainly through hydrogen bond interactions with the pyrophosphate moiety of acetyl-CoA. Principle component analysis elucidates the conformational distribution and dominant concerted motions of HmMCD. MM_PBSA calculations present the crucial residues and the major driving force responsible for the binding of acetyl-CoA. These results provide useful information for understanding the interactions of HmMCD with CoA derivatives. Proteins 2016; 84:792-802. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Baoping Ling
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Yuxia Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Xiaoping Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Zhiguo Wang
- Institute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang Province, 311121, China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong Province, 273165, China
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15
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Liu H, Tan D, Han L, Ye J, Qiu W, Gu X, Zhang H. A new case of malonyl-CoA decarboxylase deficiency with mild clinical features. Am J Med Genet A 2016; 170A:1347-51. [PMID: 26858006 DOI: 10.1002/ajmg.a.37590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 01/22/2016] [Indexed: 01/19/2023]
Abstract
Malonyl-CoA decarboxylase deficiency is an extremely rare autosomal recessive inborn error of fatty acid metabolism. It usually follows a severe disease course and presents poor prognosis without treatment. Here, we report an affected female juvenile with a mild clinical and biochemical phenotype who mainly featured poor schooling without cardiomyopathy and metabolic acidosis. She was suspected of malonyl-CoA decarboxylase deficiency due to a 57-kb deletion in 16q23.3 encompassing the MLCYD gene revealed by chromosome microarray. Malonyl-CoA decarboxylase deficiency was then confirmed by acylcarnitine analysis and organic acid analysis. Real-time PCR analysis of the patient revealed the first three exon deletion of the MLYCD gene, which was maternally inherited. DNA sequencing of the MLYCD gene of the patient identified a novel heterozygous mutation (c.911G>A, p.G304E) in exon 4 that was paternally inherited. The patient urine malonic acid dissolved and had a better school record in 6 month after initiation of fat-limited diet. At 1 year post treatment, the blood malonylcarnitine level decreased remarkably. Our result expands the phenotype of malonyl-CoA decarboxylase deficiency and suggests attentions should be paid to the mild form of disorders, for example, malonyl-CoA decarboxylase deficiency, which usually present a severe disease course.
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Affiliation(s)
- Huan Liu
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongqiong Tan
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lianshu Han
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Ye
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjuan Qiu
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuefan Gu
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huiwen Zhang
- Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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16
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Yizhak K, Gaude E, Le Dévédec S, Waldman YY, Stein GY, van de Water B, Frezza C, Ruppin E. Phenotype-based cell-specific metabolic modeling reveals metabolic liabilities of cancer. eLife 2014; 3. [PMID: 25415239 PMCID: PMC4238051 DOI: 10.7554/elife.03641] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 10/28/2014] [Indexed: 12/11/2022] Open
Abstract
Utilizing molecular data to derive functional physiological models tailored for specific cancer cells can facilitate the use of individually tailored therapies. To this end we present an approach termed PRIME for generating cell-specific genome-scale metabolic models (GSMMs) based on molecular and phenotypic data. We build >280 models of normal and cancer cell-lines that successfully predict metabolic phenotypes in an individual manner. We utilize this set of cell-specific models to predict drug targets that selectively inhibit cancerous but not normal cell proliferation. The top predicted target, MLYCD, is experimentally validated and the metabolic effects of MLYCD depletion investigated. Furthermore, we tested cell-specific predicted responses to the inhibition of metabolic enzymes, and successfully inferred the prognosis of cancer patients based on their PRIME-derived individual GSMMs. These results lay a computational basis and a counterpart experimental proof of concept for future personalized metabolic modeling applications, enhancing the search for novel selective anticancer therapies.
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Affiliation(s)
- Keren Yizhak
- Blavatnik School of Computer Science, Tel-Aviv University, Tel-Aviv, Israel
| | - Edoardo Gaude
- MRC Cancer Unit, University of Cambridge, Cambridge, United Kingdom
| | - Sylvia Le Dévédec
- Division of Toxicology, Leiden Academic Center for Drug Research, Leiden University, Leiden, Netherlands
| | - Yedael Y Waldman
- Blavatnik School of Computer Science, Tel-Aviv University, Tel-Aviv, Israel
| | - Gideon Y Stein
- Department of Internal Medicine 'B', Beilinson Hospital, Rabin Medical Center, Petah-Tikva, Israel
| | - Bob van de Water
- Division of Toxicology, Leiden Academic Center for Drug Research, Leiden University, Leiden, Netherlands
| | - Christian Frezza
- MRC Cancer Unit, University of Cambridge, Cambridge, United Kingdom
| | - Eytan Ruppin
- Blavatnik School of Computer Science, Tel-Aviv University, Tel-Aviv, Israel
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