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Islinger M, Costello JL, Kors S, Soupene E, Levine TP, Kuypers FA, Schrader M. The diversity of ACBD proteins - From lipid binding to protein modulators and organelle tethers. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2020; 1867:118675. [PMID: 32044385 PMCID: PMC7057175 DOI: 10.1016/j.bbamcr.2020.118675] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/30/2020] [Accepted: 02/05/2020] [Indexed: 12/12/2022]
Abstract
Members of the large multigene family of acyl-CoA binding domain containing proteins (ACBDs) share a conserved motif required for binding of Coenzyme A esterified fatty acids of various chain length. These proteins are present in the three kingdoms of life, and despite their predicted roles in cellular lipid metabolism, knowledge about the precise functions of many ACBD proteins remains scarce. Interestingly, several ACBD proteins are now suggested to function at organelle contact sites, and are recognized as host interaction proteins for different pathogens including viruses and bacteria. Here, we present a thorough phylogenetic analysis of the ACBD family and discuss their structure and evolution. We summarize recent findings on the various functions of animal and fungal ACBDs with particular focus on peroxisomes, the role of ACBD proteins at organelle membranes, and their increasing recognition as targets for pathogens.
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Affiliation(s)
- Markus Islinger
- Institute of Neuroanatomy, Medical Faculty Manheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Joseph L Costello
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Exeter EX4 4QD, Devon, UK
| | - Suzan Kors
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Exeter EX4 4QD, Devon, UK
| | - Eric Soupene
- Children's Hospital Oakland Research Institute, Oakland, CA 94609, USA
| | | | - Frans A Kuypers
- Children's Hospital Oakland Research Institute, Oakland, CA 94609, USA
| | - Michael Schrader
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Exeter EX4 4QD, Devon, UK.
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Englbrecht JS, Maas M. Anesthesia in a child with suspected peroxisomal disorder. Anaesthesist 2017; 66:944-947. [DOI: 10.1007/s00101-017-0379-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/14/2017] [Accepted: 10/05/2017] [Indexed: 11/28/2022]
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Ma X, Li J, Brost B, Cheng W, Jiang SW. Decreased expression and DNA methylation levels of GATAD1 in preeclamptic placentas. Cell Signal 2014; 26:959-67. [PMID: 24462704 PMCID: PMC4644424 DOI: 10.1016/j.cellsig.2014.01.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 01/13/2014] [Indexed: 12/13/2022]
Abstract
Expression of syncytin-1, or the human endogenous retroviral family W member 1 (HERVWE1) in human placental trophoblasts is regulated by DNA methylation. Increased DNA methylation and decreased expression of syncytin-1 have been observed in preeclamptic placentas. The syncytin-1-mediated fusogenic as well as non-fusogenic activities, e.g., cell cycle promotion, anti-apoptosis, and immune suppression, are implicated in the pathogenic changes in preeclamptic placentas. It is noteworthy that in a close vicinity to syncytin-1 there are two genes, peroxisome biogenesis factor 1 (PEX1) and GATA zinc finger domain containing 1 (GATAD1), as well as multiple CpG islands around these genes. In this study we determined if these adjacent genes might, like syncytin-1, subject to epigenetic regulation in preeclamptic placentas. Data from quantitative real-time PCR and Western blotting indicated that while PEX1 expression remained stable, GATAD1 expression was significantly decreased in the third-trimester placentas associated with preeclampsia than those associated with normal pregnancy. Immunohistochemistry detected high GATAD1 expression in trophoblast linage, and confirmed its reduced levels in preeclamptic placentas. However, COBRA and bisulfate sequencing detected decreased DNA methylation in levels in the 3 [prime] region of GATAD1 gene in preeclamptic placentas. The positive correlation between 3 [prime] methylation and GATAD1 expression was confirmed by treatment of choriocarcinoma JAR cells with DNMT inhibitor. These data pointed to a potential role of GATAD1 for the syncytium deficiency often associated with preeclamptic placentas. The sharp contrast of the methylation alterations for the closely positioned GATAD1 and HERVWE1 may provide a useful model for studying the accurate control of DNA methylation as well as their positive and negative impact on gene expression in placental trophoblasts.
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Affiliation(s)
- Xiaoling Ma
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, GA, USA
| | - Jinping Li
- Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, GA, USA; Department of Obstetrics and Gynecology, Mayo Clinic and Mayo Medical College, Rochester, MN, USA
| | - Brian Brost
- Department of Obstetrics and Gynecology, Mayo Clinic and Mayo Medical College, Rochester, MN, USA
| | - Wenjun Cheng
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Shi-Wen Jiang
- Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, GA, USA; Department of Obstetrics and Gynecology, Mayo Clinic and Mayo Medical College, Rochester, MN, USA; Department of Obstetrics and Gynecology, Memorial Health Hospital, Savannah, GA, USA.
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Liang JS, Lu JF. Peroxisomal disorders with infantile seizures. Brain Dev 2011; 33:777-82. [PMID: 21397417 DOI: 10.1016/j.braindev.2011.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 02/11/2011] [Accepted: 02/12/2011] [Indexed: 01/03/2023]
Abstract
Peroxisomes are organelles responsible for multiple metabolic pathways including the biosynthesis of plasmalogens and the oxidation of branched-chain as well as very-long-chain fatty acids (VLCFAs). Peroxisomal disorders (PDs) are heterogeneous groups of diseases and affect many organs with varying degrees of involvement. Even pathogenetically distinct PDs share some common symptoms. However, several PDs have uniquely characteristic clinical findings. The durations of survival in PDs are also variable. Infants with PDs are usually presented with developmental delay, visual and hearing impairment. Generalized hypotonia is present in severe cases. Epileptic seizures are also a common characteristic of patients with certain PDs. Nonetheless, the classification and evolution of epilepsy in PDs have not been elucidated in detail. Here, we review the relevant literatures and provide an overview of PDs with particular emphasis on the characteristics of seizures in infants.
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Affiliation(s)
- Jao-Shwann Liang
- Department of Pediatrics and Medical Research, Far Eastern Memorial Hospital, Taipei, Taiwan
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Ryuda M, Tsuzuki S, Matsumoto H, Oda Y, Tanimura T, Hayakawa Y. Identification of a novel gene, anorexia, regulating feeding activity via insulin signaling in Drosophila melanogaster. J Biol Chem 2011; 286:38417-38426. [PMID: 21917925 DOI: 10.1074/jbc.m111.267344] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Feeding activities of animals, including insects, are influenced by various signals from the external environment, internal energy status, and physiological conditions. Full understanding of how such signals are integrated to regulate feeding activities has, however, been hampered by a lack of knowledge about the genes involved. Here, we identified an anorexic Drosophila melanogaster mutant (GS1189) in which the expression of a newly identified gene, Anorexia (Anox), is mutated. In Drosophila larvae, Anox encodes an acyl-CoA binding protein with an ankyrin repeat domain that is expressed in the cephalic chemosensory organs and various neurons in the central nervous system (CNS). Loss of its expression or disturbance of neural transmission in Anox-expressing cells decreased feeding activity. Conversely, overexpression of Anox in the CNS increased food intake. We further found that Anox regulates expression of the insulin receptor gene (dInR); overexpression and knockdown of Anox in the CNS, respectively, elevated and repressed dInR expression, which altered larval feeding activity in parallel with Anox expression levels. Anox mutant adults also showed significant repression of sugar-induced nerve responses and feeding potencies. Although Anox expression levels did not depend on the fasting and feeding states cycle, stressors such as high temperature and desiccation significantly repressed its expression levels. These results strongly suggest that Anox is essential for gustatory sensation and food intake of Drosophila through regulation of the insulin signaling activity that is directly regulated by internal nutrition status. Therefore, the mutant strain lacking Anox expression cannot enhance feeding potencies even under starvation.
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Affiliation(s)
- Masasuke Ryuda
- Department of Applied Biological Sciences, Saga University, Saga 840-8502, Japan
| | - Seiji Tsuzuki
- Department of Applied Biological Sciences, Saga University, Saga 840-8502, Japan
| | - Hitoshi Matsumoto
- Department of Applied Biological Sciences, Saga University, Saga 840-8502, Japan
| | - Yasunori Oda
- Department of Applied Biological Sciences, Saga University, Saga 840-8502, Japan
| | - Teiichi Tanimura
- Department of Biology, Graduate School of Sciences, Kyushu University, Hakozaki 812-8581, Japan
| | - Yoichi Hayakawa
- Department of Applied Biological Sciences, Saga University, Saga 840-8502, Japan.
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Fisher E, Nitz I, Gieger C, Grallert H, Gohlke H, Lindner I, Dahm S, Boeing H, Burwinkel B, Rathmann W, Wichmann HE, Schrezenmeir J, Illig T, Döring F. Association of acyl-CoA-binding protein (ACBP) single nucleotide polymorphisms and type 2 diabetes in two German study populations. Mol Nutr Food Res 2007; 51:178-84. [PMID: 17262885 DOI: 10.1002/mnfr.200600163] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The human acyl-CoA-binding protein (ACBP) is a potential candidate gene of type 2 diabetes (T2D), since it plays a central role in determining the intracellular concentration of activated fatty acids which contribute to insulin resistance. The aim of our study was to evaluate whether single nucleotide polymorphisms (SNPs) of the ACBP gene are associated with risk of T2D. Genotyping of eight SNPs (rs2084202, rs3731607, rs8192501, rs8192504, rs2244135, rs2276596, rs8192506, rs2289948) was performed in 192 incident T2D subjects and 384 matched controls of the European Prospective Investigation into Cancer and Nutrition-Potsdam cohort. A putative promoter SNP (rs2084202) of splice variant ACBP 1c showed decreased risk of T2D (odds ratio (OR) 0.63, 95% CI 0.41-0.96). The haplotype, that contained the mutant base of rs2084202 showed similar evidence for the association with disease risk as single SNP rs2084202. In a second population-based study, Cooperative Health Research in the Augsburg Region of 226 individuals with T2D and 863 control subjects a borderline significant association between rs2084202 and T2D (OR 0.72, 95% CI 0.51-1.01) was observed. In summary, we obtained evidence from two Caucasian study populations that the minor allele of ACBP rs2084202 might be associated with reduced risk of T2D.
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Affiliation(s)
- Eva Fisher
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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Abstract
Seizures represent an important clinical manifestation of inborn errors of metabolism. The presence of myoclonic seizures and very early onset are clues to a metabolic disorder. Specific correlations between age of seizure onset and electroencephalogram patterns with inborn errors of metabolism are discussed. The explosion of information in neurogenetics and metabolism mandates increasing awareness of appropriate metabolic diagnostic and therapeutic strategies in the setting of certain epilepsies. Specific laboratory, imaging, and treatment considerations are included to present updated material in a field that continues to expand rapidly.
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Affiliation(s)
- Phillip L Pearl
- Department of Neurology, Children's National Medical Center, 111 Michigan Avenue, NW, Washington, DC 20010, USA.
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