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Wu Z, Derks MFL, Dibbits B, Megens HJ, Groenen MAM, Crooijmans RPMA. Corrigendum: A novel loss-of-function variant in transmembrane protein 263 (TMEM263) of autosomal dwarfism in chicken. Front Genet 2024; 14:1349789. [PMID: 38259620 PMCID: PMC10801168 DOI: 10.3389/fgene.2023.1349789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fgene.2018.00193.].
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2
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Sha Y, Liu W, Tang S, Zhang X, Xiao Z, Xiao Y, Deng H, Zhou H, Wei X. TENT5D disruption causes oligoasthenoteratozoospermia and male infertility. Andrology 2023; 11:1121-1131. [PMID: 36746179 DOI: 10.1111/andr.13407] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/06/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023]
Abstract
BACKGROUND Oligoasthenoteratozoospermia (OAT) is one of the most complex aggregators of male gametic problems. However, the genetic etiology of OAT is still largely unknown. OBJECTIVES To reveal the new genetic factors responsible for male infertility owning to OAT and reveal the outcomes of the affected patients from intracytoplasmic sperm injection (ICSI). MATERIALS AND METHODS Two infertile men with typical OAT were recruited in 2018 and retrospected a cohort that included 47 patients with OAT from 2013 to 2021. Fifty healthy men with proven fertility served as control subjects. To identify the novel pathogenic variants, whole-exome sequencing and Sanger sequencing were used. In silico analysis revealed the affecting of the variants. Field emission scanning electron microscopy was employed to observe the morphological defects of the spermatozoa. Immunofluorescence was used to analyze the expression and localization of the related protein. CRISPR/Cas9 was used to generate the mouse model. ICSI was used as a treatment for the patients and to assess the effects of the pathogenic variant on fertilization and embryo development. RESULTS We identified a loss-of-function mutation NM_001170574.2:c.823G > T (p.Glu275*) in X-linked TENT5D from two patients with OAT. This variant is highly deleterious and has not been found in the human population. The count of patients' spermatozoa is dramatically decreased and displays multiple morphologic abnormalities with poor motility. Tent5d knockout mice are infertile and exhibit parallel defects. ICSI could rescue the infertility of the Tent5d knockout male mice. Moreover, the proband was treated with ICSI and achieved a successful pregnancy outcome for the first time. Subsequent mutation screening identified no TENT5D mutations among 47 additional patients with OAT and 50 control subjects. CONCLUSION Mutation in TENT5D results in OAT and male infertility, and this terrible situation could be rescued by ICSI.
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Affiliation(s)
- Yanwei Sha
- Department of Andrology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Wensheng Liu
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou, Guangdong, China
| | - Songxi Tang
- Department of Andrology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaoya Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, China
| | - Ziyi Xiao
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Yuwei Xiao
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Hongjing Deng
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Huiliang Zhou
- Department of Andrology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaoli Wei
- School of Medicine, Yunnan University, Kunming, Yunnan, China
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3
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Ding Y, Zhang F, Sun F, Liu J, Zhu Z, He X, Bai G, Ni Z, Sun Q, Su Z. Loss of OsHRC function confers blast resistance without yield penalty in rice. Plant Biotechnol J 2023. [PMID: 37102736 PMCID: PMC10363764 DOI: 10.1111/pbi.14061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/05/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Affiliation(s)
- Yanpeng Ding
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Fuping Zhang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fangyao Sun
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Jilu Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zhenzhen Zhu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xi He
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Guihua Bai
- US Department of Agriculture, Hard Winter Wheat Genetics Research Unit, Manhattan, Kansas, USA
| | - Zhongfu Ni
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Qixin Sun
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zhenqi Su
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
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4
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Thieme M, Brêchet A, Bourgeois Y, Keller B, Bucher E, Roulin AC. Experimentally heat-induced transposition increases drought tolerance in Arabidopsis thaliana. New Phytol 2022; 236:182-194. [PMID: 35715973 PMCID: PMC9544478 DOI: 10.1111/nph.18322] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/10/2022] [Indexed: 05/14/2023]
Abstract
Eukaryotic genomes contain a vast diversity of transposable elements (TEs). Formerly often described as selfish and parasitic DNA sequences, TEs are now recognised as a source of genetic diversity and powerful drivers of evolution. However, because their mobility is tightly controlled by the host, studies experimentally assessing how fast TEs may mediate the emergence of adaptive traits are scarce. We exposed Arabidopsis thaliana high-copy TE lines (hcLines) with up to c. eight-fold increased copy numbers of the heat-responsive ONSEN TE to drought as a straightforward and ecologically highly relevant selection pressure. We provide evidence for increased drought tolerance in five out of the 23 tested hcLines and further pinpoint one of the causative mutations to an exonic insertion of ONSEN in the ribose-5-phosphate-isomerase 2 gene. The resulting loss-of-function mutation caused a decreased rate of photosynthesis, plant size and water consumption. Overall, we show that the heat-induced transposition of a low-copy TE increases phenotypic diversity and leads to the emergence of drought-tolerant individuals in A. thaliana. This is one of the rare empirical examples substantiating the adaptive potential of mobilised stress-responsive TEs in eukaryotes. Our work demonstrates the potential of TE-mediated loss-of-function mutations in stress adaptation.
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Affiliation(s)
- Michael Thieme
- Department of Plant and Microbial BiologyUniversity of Zurich8008ZürichSwitzerland
| | - Arthur Brêchet
- Department of Environmental Sciences – BotanyUniversity of Basel4056BaselSwitzerland
| | - Yann Bourgeois
- School of Biological SciencesUniversity of PortsmouthPO1 2DTPortsmouthUK
| | - Bettina Keller
- Department of Plant and Microbial BiologyUniversity of Zurich8008ZürichSwitzerland
| | | | - Anne C. Roulin
- Department of Plant and Microbial BiologyUniversity of Zurich8008ZürichSwitzerland
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5
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Qiu T, Dai Q, Wang Q. A novel de novo hemizygous ARHGEF9 mutation associated with severe intellectual disability and epilepsy: a case report. J Int Med Res 2021; 49:3000605211058372. [PMID: 34851771 PMCID: PMC8647271 DOI: 10.1177/03000605211058372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
ARHGEF9 encodes collybistin, a brain-specific guanosine diphosphate-guanosine-5′-triphosphate exchange factor that plays an important role in clustering of gephyrin and γ-aminobutyric acid type A receptors in the postsynaptic membrane. Overwhelming evidence suggests that defects in this protein can cause X-linked intellectual disability, which comprises a series of clinical phenotypes, including autism spectrum disorder, behavior disorder, intellectual disability, and febrile seizures. Here, we report a boy with clinical symptoms of severe intellectual disability, epilepsy, and developmental delay and regression. Trio exome sequencing (trio-clinical exome sequencing) identified a novel hemizygous deletion, c.656_c.669delACTTCTTTGAGGCC (p. His219Leu fs*9), in exon 5 of ARHGEF9. This variant was not reported in either the Genome Aggregation Database or our database of 309 patients with neurodevelopmental disorders. Oxcarbazepine and levetiracetam reduced the frequency of the patient’s epileptic seizures to a certain extent, but psychomotor developmental delay and developmental regression became more obvious with age. This case study seeks to report a de novo loss-of-function mutation of ARHGEF9, aiming to emphasize the genetic diagnosis of X-linked intellectual disability and further improve knowledge of the ethnic distribution of ARHGEF9 mutations.
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Affiliation(s)
- Tong Qiu
- Division of Pediatrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Qian Dai
- Division of Pediatrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Qiu Wang
- Division of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
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6
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Ota M, Sasaki T, Ebihara T, Yokosawa E, Murakami Y, Matsunaka H, Chinuki Y, Amagai M, Morita E. Filaggrin-gene mutation has minimal effect on the disease severity in the lesions of atopic dermatitis. J Dermatol 2021; 48:1688-1699. [PMID: 34322929 DOI: 10.1111/1346-8138.16087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/22/2021] [Accepted: 07/14/2021] [Indexed: 11/29/2022]
Abstract
Loss-of-function mutations of filaggrin (FLG) gene (FLG) are the strongest known genetic risk factor for atopic dermatitis (AD). It is still debatable how FLG gene mutations and the resulting abnormal amount of FLG protein contribute to skin barrier function and symptoms of AD. In this study, we examined the effects of loss-of-function mutations of FLG gene on the severity of skin lesions and skin barrier function in 55 patients with AD by evaluating eight patients with AD with FLG gene mutations and 47 patients with AD without mutations. The results showed that the FLG gene mutation did not affect the duration of AD, severity of AD, degree of local inflammatory symptoms, skin water content and trans-epidermal water loss of the lesions. Next, in these eight mutation carriers and the 47 non-carriers, stratum corneum was collected from the three site of skin lesions using tape-stripping method, and the amounts of FLG protein and total amino acid contained in the stratum corneum was measured to investigate the effect of the FLG gene mutation on the amount of FLG gene product in the local lesion. FLG abnormalities had little effect on FLG protein and total amino acid content in the stratum corneum in the lesional skin. The amount of the FLG products, especially amino acids derived from FLG, in the stratum corneum of AD lesional skin is influenced by development of dermatitis. The results obtained from this study supports that the activation of Th2-dominant inflammatory cells, together with FLG abnormality, plays a role in suppressing the production of FLG in skin lesions.
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Affiliation(s)
- Masataka Ota
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Takashi Sasaki
- Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Tamotsu Ebihara
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Emiko Yokosawa
- NOV Academic Research, Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Yumi Murakami
- NOV Academic Research, Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Hiroshi Matsunaka
- NOV Academic Research, Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Yuko Chinuki
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Eishin Morita
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan
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7
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Zheng Y, Mwamburi MF, Liu H, Wang F. Loss of Function of OsARG Resulted in Pepper-Shaped Husk in Indica Rice. Life (Basel) 2021; 11:523. [PMID: 34205108 DOI: 10.3390/life11060523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 12/02/2022] Open
Abstract
Grain shape is one of the most important and complex traits determining the grain yield in rice. In this study, we discovered two rice mutants with defective shape spikelets, designated as psh1-1/2 (pepper-shaped husk 1-1/2), which were both isolated from the tissue-culture-regenerated plants of indica cultivar Minghui 86. The two mutants showed the same mutant phenotypes, containing pepper-shaped spikelets; shorter, smaller and compact panicles; very low seed-setting rate; high percentage of split grains; and lower grain width. Genetic analysis indicated that the mutant phenotypes were controlled by a recessive gene. Gene mapping indicated that the target gene PSH1 was located on the short arm of chromosome 4. Sequencing analysis revealed that the two mutants each had a different nonsense mutation in OsARG, confirming that the target gene is OsARG. Compared with the previously reported OsARG mutant nglf-1, psh1-1/2 possessed some distinct mutant phenotypes, probably because of the influence of different genetic background, suggesting that OsARG may function differently under different genetic backgrounds.
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8
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Li Y, Sun B, Wang Z, He Z, Yang F, Wang H, Cui F, Chen Z, Ling L, Wang C, Huang X. Mutation Screening of the GLE1 Gene in a Large Chinese Cohort of Amyotrophic Lateral Sclerosis Patients. Front Neurosci 2021; 15:595775. [PMID: 34025336 PMCID: PMC8131544 DOI: 10.3389/fnins.2021.595775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal progressive neurodegenerative disease involving the upper and lower motor neurons of the spinal cord, brainstem, and cerebral cortex. At least 30 genes have been implicated in familial ALS (fALS) and sporadic ALS (sALS). Kaneb et al. (2015) first carried out a large-scale sequencing study in ALS patients and identified two loss-of-function (LOF) variants in the GLE1 gene. The LOF mutation-induced disruption of RNA metabolism through the haploinsufficiency mechanism is implicated in ALS pathogenesis. A total of 628 ALS patients and 522 individuals without neurodegenerative disorders were enrolled in this study to explore the GLE1 gene contribution to ALS in the Chinese population. All 16 exons and the flanking intron of GLE1 were screened by Sanger sequencing. In total, we identified seven rare GLE1 coding variants, including one novel nonsense mutation and six rare missense mutations in 628 ALS patients. The frequency of GLE1 LOF mutations was 0.16% (1/628) among Chinese sALS patients, implying that it is an uncommon genetic determinant of ALS in Chinese patients. Additionally, the rare missense variants in the hCG1-binding domain of GLE1 impairing the distribution of the hGle1B isoform at the nuclear pore complex (NPC) region may be involved in the pathogenesis of ALS.
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Affiliation(s)
- Yanran Li
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Bo Sun
- Geriatric Neurological Department of the Second Medical Center, National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Zhanjun Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhengqing He
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Fei Yang
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Hongfen Wang
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Fang Cui
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhaohui Chen
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Li Ling
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Chaodong Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xusheng Huang
- Neurological Department of the First Medical Center, Chinese PLA General Hospital, Beijing, China
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9
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Dawidziuk M, Kutkowska-Kaźmierczak A, Gawliński P, Wiszniewski W, Gos M, Stawiński P, Rydzanicz M, Kosińska J, Własienko P, Malinowska Kordowska O, Bartnik-Głaska M, Bernaciak J, Szczałuba K, Bekiesińska-Figatowska M, Płoski R, Bal J, Olimpia Rzońca-Niewczas S. The MED13L haploinsufficiency syndrome associated with de novo nonsense variant (P.GLN1981*). J Mother Child 2021; 24:32-36. [PMID: 33930262 PMCID: PMC8258838 DOI: 10.34763/jmotherandchild.20202403.2021.d-20-00003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The Mediator complex subunit 13-like is a part of the large Mediator complex. Recently, a large number of patients were diagnosed with mutations in this gene, which makes it one of the most frequent causes of syndromic intellectual disability. In this work, we report a patient with a novel de novo likely pathogenic variant c.5941C>T, p.(Gln1981*) in the MED13L gene with severe intellectual disability and facial dysmorphism. Uncommon findings like lack of speech, strabismus and self-destructive behaviour present in our patient allowed us to further define the phenotypic spectrum of mental retardation and distinctive facial features with or without cardiac defects syndrome.
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Affiliation(s)
- Mateusz Dawidziuk
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Anna Kutkowska-Kaźmierczak
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Paweł Gawliński
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Wojciech Wiszniewski
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland.,Department of Molecular and Medical Genetics, Oregon Health and Science University, 3181 SW Sam Jackson Park Road L103, Portland, Oregon, USA
| | - Monika Gos
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Piotr Stawiński
- Department of Medical Genetics, Medical University of Warsaw, 3c Pawińskiego Street, 02-106 Warsaw, Poland
| | - Małgorzata Rydzanicz
- Department of Medical Genetics, Medical University of Warsaw, 3c Pawińskiego Street, 02-106 Warsaw, Poland
| | - Joanna Kosińska
- Department of Medical Genetics, Medical University of Warsaw, 3c Pawińskiego Street, 02-106 Warsaw, Poland
| | - Paweł Własienko
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Olga Malinowska Kordowska
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Magdalena Bartnik-Głaska
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Joanna Bernaciak
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
| | - Krzysztof Szczałuba
- Department of Medical Genetics, Medical University of Warsaw, 3c Pawińskiego Street, 02-106 Warsaw, Poland
| | | | - Rafał Płoski
- Department of Medical Genetics, Medical University of Warsaw, 3c Pawińskiego Street, 02-106 Warsaw, Poland
| | - Jerzy Bal
- Department of Medical Genetics, Institute of Mother and Child, 17a Kasprzaka Street, 01-211 Warsaw, Poland
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Torkamaneh D, Laroche J, Valliyodan B, O'Donoughue L, Cober E, Rajcan I, Vilela Abdelnoor R, Sreedasyam A, Schmutz J, Nguyen HT, Belzile F. Soybean (Glycine max) Haplotype Map (GmHapMap): a universal resource for soybean translational and functional genomics. Plant Biotechnol J 2021; 19:324-334. [PMID: 32794321 DOI: 10.1101/534578] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 07/24/2020] [Accepted: 08/07/2020] [Indexed: 05/27/2023]
Abstract
Here, we describe a worldwide haplotype map for soybean (GmHapMap) constructed using whole-genome sequence data for 1007 Glycine max accessions and yielding 14.9 million variants as well as 4.3 M tag single-nucleotide polymorphisms (SNPs). When sampling random subsets of these accessions, the number of variants and tag SNPs plateaued beyond approximately 800 and 600 accessions, respectively. This suggests extensive coverage of diversity within the cultivated soybean. GmHapMap variants were imputed onto 21 618 previously genotyped accessions with up to 96% success for common alleles. A local association analysis was performed with the imputed data using markers located in a 1-Mb region known to contribute to seed oil content and enabled us to identify a candidate causal SNP residing in the NPC1 gene. We determined gene-centric haplotypes (407 867 GCHs) for the 55 589 genes and showed that such haplotypes can help to identify alleles that differ in the resulting phenotype. Finally, we predicted 18 031 putative loss-of-function (LOF) mutations in 10 662 genes and illustrated how such a resource can be used to explore gene function. The GmHapMap provides a unique worldwide resource for applied soybean genomics and breeding.
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Affiliation(s)
- Davoud Torkamaneh
- Département de Phytologie, Université Laval, Québec City, QC, Canada
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec City, QC, Canada
- Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada
| | - Jérôme Laroche
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec City, QC, Canada
| | - Babu Valliyodan
- National Center for Soybean Biotechnology and Division of Plant Sciences, University of Missouri, Columbia, MO, USA
| | - Louise O'Donoughue
- CÉROM, Centre de recherche Sur Les Grains Inc., Saint-Mathieu de Beloeil, QC, Canada
| | - Elroy Cober
- Agriculture and Agri-Food Canada, Ottawa, ON, Canada
| | - Istvan Rajcan
- Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada
| | - Ricardo Vilela Abdelnoor
- Brazilian Corporation of Agricultural Research (Embrapa Soja), Warta County, PR, Brazil
- Londrina State University (UEL), Londrina, PR, Brazil
| | | | - Jeremy Schmutz
- Institute for Biotechnology, HudsonAlpha, Huntsville, AL, USA
- Department of Energy, Joint Genome Institute, Walnut Creek, CA, USA
| | - Henry T Nguyen
- National Center for Soybean Biotechnology and Division of Plant Sciences, University of Missouri, Columbia, MO, USA
| | - François Belzile
- Département de Phytologie, Université Laval, Québec City, QC, Canada
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec City, QC, Canada
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11
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Torkamaneh D, Laroche J, Valliyodan B, O’Donoughue L, Cober E, Rajcan I, Vilela Abdelnoor R, Sreedasyam A, Schmutz J, Nguyen HT, Belzile F. Soybean (Glycine max) Haplotype Map (GmHapMap): a universal resource for soybean translational and functional genomics. Plant Biotechnol J 2021; 19:324-334. [PMID: 32794321 PMCID: PMC7868971 DOI: 10.1111/pbi.13466] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 07/24/2020] [Accepted: 08/07/2020] [Indexed: 05/10/2023]
Abstract
Here, we describe a worldwide haplotype map for soybean (GmHapMap) constructed using whole-genome sequence data for 1007 Glycine max accessions and yielding 14.9 million variants as well as 4.3 M tag single-nucleotide polymorphisms (SNPs). When sampling random subsets of these accessions, the number of variants and tag SNPs plateaued beyond approximately 800 and 600 accessions, respectively. This suggests extensive coverage of diversity within the cultivated soybean. GmHapMap variants were imputed onto 21 618 previously genotyped accessions with up to 96% success for common alleles. A local association analysis was performed with the imputed data using markers located in a 1-Mb region known to contribute to seed oil content and enabled us to identify a candidate causal SNP residing in the NPC1 gene. We determined gene-centric haplotypes (407 867 GCHs) for the 55 589 genes and showed that such haplotypes can help to identify alleles that differ in the resulting phenotype. Finally, we predicted 18 031 putative loss-of-function (LOF) mutations in 10 662 genes and illustrated how such a resource can be used to explore gene function. The GmHapMap provides a unique worldwide resource for applied soybean genomics and breeding.
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Affiliation(s)
- Davoud Torkamaneh
- Département de PhytologieUniversité LavalQuébec CityQCCanada
- Institut de Biologie Intégrative et des Systèmes (IBIS)Université LavalQuébec CityQCCanada
- Department of Plant AgricultureUniversity of GuelphGuelphONCanada
| | - Jérôme Laroche
- Institut de Biologie Intégrative et des Systèmes (IBIS)Université LavalQuébec CityQCCanada
| | - Babu Valliyodan
- National Center for Soybean Biotechnology and Division of Plant SciencesUniversity of MissouriColumbiaMOUSA
| | - Louise O’Donoughue
- CÉROMCentre de recherche Sur Les Grains Inc.Saint‐Mathieu de BeloeilQCCanada
| | - Elroy Cober
- Agriculture and Agri‐Food CanadaOttawaONCanada
| | - Istvan Rajcan
- Department of Plant AgricultureUniversity of GuelphGuelphONCanada
| | - Ricardo Vilela Abdelnoor
- Brazilian Corporation of Agricultural Research (Embrapa Soja)Warta CountyPRBrazil
- Londrina State University (UEL)LondrinaPRBrazil
| | | | - Jeremy Schmutz
- Institute for BiotechnologyHudsonAlphaHuntsvilleALUSA
- Department of EnergyJoint Genome InstituteWalnut CreekCAUSA
| | - Henry T. Nguyen
- National Center for Soybean Biotechnology and Division of Plant SciencesUniversity of MissouriColumbiaMOUSA
| | - François Belzile
- Département de PhytologieUniversité LavalQuébec CityQCCanada
- Institut de Biologie Intégrative et des Systèmes (IBIS)Université LavalQuébec CityQCCanada
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12
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Bayona A, Arrieta F, Rodríguez-Jiménez C, Cerrato F, Rodríguez-Nóvoa S, Fernández-Lucas M, Gómez-Coronado D, Mata P. Loss-of-function mutation of PCSK9 as a protective factor in the clinical expression of familial hypercholesterolemia: A case report. Medicine (Baltimore) 2020; 99:e21754. [PMID: 32846800 PMCID: PMC7447476 DOI: 10.1097/md.0000000000021754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RATIONALE Proprotein convertase subtilisin/kexin 9 or PCSK9 is a protein whose main function is to regulate the number of low-density lipoprotein receptors (LDLR) present on the cell surface. Loss-of-function mutations in PCSK9 have been related to low LDL-cholesterol levels and a decrease in the risk of cardiovascular events. PATIENT CONCERNS We present the case of a 27-year-old woman, offspring of a patient with familial homozygous hypercholesterolemia, who presented with mild-moderate hypercholesterolemia. DIAGNOSIS Genetic analysis was performed by next generation sequencing using a customized panel of 198 genes. Sanger sequencing was used to confirm the presence of the variants of interest. The genetic analysis showed a pathogenic heterozygous mutation in LDLR [exon 6:c.902A>G:p(Asp301Gly)], as well as a loss-of-function heterozygous variant in PCSK9 [exon1:c.137 G>T:p.(Arg46Leu)]. The genetic analysis of the index case's mother revealed compound heterozygosity for 2 different mutations in LDLR [c.902A>G:p.(Asp301Gly); c.1646G>T:p.(Gly549Val)] in exon 6 and in exon 11, respectively, and the same loss-of-function variant in PCSK9 that had been found in her daughter [(PCSK9:exon1:c.137G>T:p.(Arg46Leu)]. The maternal grandfather of the index case presented the same genetic variants as his granddaughter. INTERVENTIONS The index case did not receive any specific treatment for hypercholesterolemia. The loss-of-function variant in PCSK9 protected her from higher LDL-cholesterol levels, provided she kept partial activity of the LDLR. In her mother, instead, a PCSK9 inhibitor was tried but failed to achieve lipid control. The reason for this may be the complete absence in LDL receptor activity. LDL apheresis was started afterwards, resulting in adequate lipid level control. OUTCOMES To the date, the index case has achieved to maintain adequate total and LDL-cholesterol levels without any other intervention. She has had no known cardiovascular complication. LESSONS Loss-of-function mutations in PCSK9 could protect from developing more severe forms of hypercholesterolemia. The finding of these mutations (LDLR-PCSK9) in three consecutive generations could imply an adaptive mechanism against the development of hypercholesterolemia.
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Affiliation(s)
- Ane Bayona
- Department of Endocrinology and Nutrition, Ramón y Cajal University Hospital
| | - Francisco Arrieta
- Department of Endocrinology and Nutrition, Ramón y Cajal University Hospital
- Ramón y Cajal Health Research Institute (IRYCIS)
- CIBER of Pathophysiology of Obesity and Nutrition (CIBEROBN)
| | | | - Francisco Cerrato
- Ramón y Cajal Health Research Institute (IRYCIS)
- Biochemistry-Research Department, Ramón y Cajal University Hospital
| | | | | | - Diego Gómez-Coronado
- Ramón y Cajal Health Research Institute (IRYCIS)
- CIBER of Pathophysiology of Obesity and Nutrition (CIBEROBN)
- Biochemistry-Research Department, Ramón y Cajal University Hospital
| | - Pedro Mata
- Fundación Hipercolesterolemia Familiar, Madrid, Spain
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13
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Danion F, Aimanianda V, Bayry J, Duréault A, Wong SSW, Bougnoux ME, Tcherakian C, Alyanakian MA, Guegan H, Puel A, Picard C, Lortholary O, Lanternier F, Latgé JP. Aspergillus fumigatus Infection in Humans With STAT3-Deficiency Is Associated With Defective Interferon-Gamma and Th17 Responses. Front Immunol 2020; 11:38. [PMID: 32047500 PMCID: PMC6997434 DOI: 10.3389/fimmu.2020.00038] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/08/2020] [Indexed: 12/23/2022] Open
Abstract
In humans, loss-of-function mutation in the Signal Transducer and Activator of Transcription 3 (STAT3) gene is frequently associated with susceptibility to bacterial as well as fungal infections including aspergillosis, although its pathogenesis remains largely unknown. In the present study, we investigated the immune responses obtained after stimulation with Aspergillus fumigatus in STAT3-deficient patients. A. fumigatus conidial killing efficiencies of both monocytes and neutrophils isolated from whole blood samples of STAT3-deficient patients were not different compared to those of healthy controls. After stimulation with A. fumigatus conidia, lower concentrations of adaptive cytokines (IFN-γ, IL-17 and IL-22) were secreted by peripheral blood mononuclear cells from STAT3-deficient patients compared to those from healthy controls. Moreover, the frequency of IFN-γ and IL-17 producing CD4+ T cells was lower in STAT3-deficient patients vs. healthy controls. Among the STAT3-deficient patients, those with aspergillosis showed further lower secretion of IFN-γ upon stimulation of their PBMCs with A. fumigatus conidia compared to the patients without aspergillosis. Together, our study indicated that STAT3-deficiency leads to a defective adaptive immune response against A. fumigatus infection, particularly with a lower IFN-γ and IL-17 responses in those with aspergillosis, suggesting potential therapeutic benefit of recombinant IFN-γ in STAT3-deficient patients with aspergillosis.
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Affiliation(s)
- François Danion
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Paris, France.,Unité des Aspergillus, Institut Pasteur, Paris, France
| | | | - Jagadeesh Bayry
- Institut National de la Santé et de la Recherche Médicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Thérapeutique, Sorbonne Université, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Amélie Duréault
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Paris, France
| | | | - Marie-Elisabeth Bougnoux
- Unité de Parasitologie-Mycologie service de Microbiologie, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France.,INRA USC 2019, Unite Biologie et Pathogenicite Fongiques, Institut Pasteur, INRA, Paris, France
| | | | - Marie-Alexandra Alyanakian
- Service d'Immunologie Biologique, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Université de Paris, Paris, France
| | - Hélène Guegan
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire de Rennes, Rennes, France.,Univ Rennes, INSERM, IRSET (Institut de Recherche en santé, Environnement et travail) - UMR_S 1085, Rennes, France
| | - Anne Puel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, NY, United States.,Génétique Humaine des Maladies Infectieuses, Hôpital Necker-Enfants Malades, INSERM U1163, Paris and Université de Paris, Imagine Institut, Paris, France
| | - Capucine Picard
- Centre d'étude des Déficits Immunitaires (CEDI), Centre de Référence des Déficits Immunitaires Héréditaires (CEREDIH), Unité d'Immuno-Hématologie, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Paris, France.,Université de Paris, Paris and Institut Imagine, INSERM UMR1163, Paris, France
| | - Olivier Lortholary
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Paris, France.,Institut Pasteur, CNRS, Centre National de Référence Mycoses Invasives et Antifongiques, Unité de Mycologie Moléculaire, UMR 2000, Paris, France
| | - Fanny Lanternier
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Necker-Enfants Malades, Assistance Publique- Hôpitaux de Paris (AP-HP), Paris, France.,St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, NY, United States
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14
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Chang MY, Oh B, Choi JE, Sulistio YA, Woo HJ, Jo A, Kim J, Kim EH, Kim SW, Hwang J, Park J, Song JJ, Kwon OC, Henry Kim H, Kim YH, Ko JY, Heo JY, Lee MJ, Lee M, Choi M, Chung SJ, Lee HS, Lee SH. LIN28A loss of function is associated with Parkinson's disease pathogenesis. EMBO J 2019; 38:e101196. [PMID: 31750563 DOI: 10.15252/embj.2018101196] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 10/01/2019] [Accepted: 10/15/2019] [Indexed: 12/18/2022] Open
Abstract
Parkinson's disease (PD) is neurodegenerative movement disorder characterized by degeneration of midbrain-type dopamine (mDA) neurons in the substantia nigra (SN). The RNA-binding protein Lin28 plays a role in neuronal stem cell development and neuronal differentiation. In this study, we reveal that Lin28 conditional knockout (cKO) mice show degeneration of mDA neurons in the SN, as well as PD-related behavioral deficits. We identify a loss-of-function variant of LIN28A (R192G substitution) in two early-onset PD patients. Using an isogenic human embryonic stem cell (hESC)/human induced pluripotent stem cell (hiPSC)-based disease model, we find that the Lin28 R192G variant leads to developmental defects and PD-related phenotypes in mDA neuronal cells that can be rescued by expression of wild-type Lin28A. Cell transplantation experiments in PD model rats show that correction of the LIN28A variant in the donor patient (pt)-hiPSCs leads to improved behavioral phenotypes. Our data link LIN28A to PD pathogenesis and suggest future personalized medicine targeting this variant in patients.
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Affiliation(s)
- Mi-Yoon Chang
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea
| | - Boram Oh
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Jang-Eun Choi
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Yanuar Alan Sulistio
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Hye-Ji Woo
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Ayoung Jo
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea
| | - Jinil Kim
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Eun-Hee Kim
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Seung Won Kim
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Jungwook Hwang
- Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Jungyun Park
- Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Jae-Jin Song
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Oh-Chan Kwon
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Hyongbum Henry Kim
- Department of Pharmacology, College of Medicine, Yonsei University, Seoul, Korea
| | - Young-Hoon Kim
- Department of Pharmacology, College of Medicine, Yonsei University, Seoul, Korea
| | - Joo Yeon Ko
- Department of Dermatology and Research Institute of Dermatology, University of Hanyang College of Medicine, Hanyang Medical Center, Seoul, Korea
| | - Jun Young Heo
- Department of Biochemistry, Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Korea
| | - Min Joung Lee
- Department of Biochemistry, Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Korea
| | - Moses Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Sun Ju Chung
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyun-Seob Lee
- Genomic Core Facility, Transdisciplinary Research & Collaboration Division, Translational Research Institute, Seoul National University Hospital, Seoul, Korea.,Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Sang-Hun Lee
- Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, Seoul, Korea.,Hanyang Biomedical Research Institute, Hanyang University, Seoul, Korea.,Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
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15
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Mukai J, Cannavò E, Crabtree GW, Sun Z, Diamantopoulou A, Thakur P, Chang CY, Cai Y, Lomvardas S, Takata A, Xu B, Gogos JA. Recapitulation and Reversal of Schizophrenia-Related Phenotypes in Setd1a-Deficient Mice. Neuron 2019; 104:471-487.e12. [PMID: 31606247 DOI: 10.1016/j.neuron.2019.09.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 07/28/2019] [Accepted: 09/10/2019] [Indexed: 12/15/2022]
Abstract
SETD1A, a lysine-methyltransferase, is a key schizophrenia susceptibility gene. Mice carrying a heterozygous loss-of-function mutation of the orthologous gene exhibit alterations in axonal branching and cortical synaptic dynamics accompanied by working memory deficits. We show that Setd1a binds both promoters and enhancers with a striking overlap between Setd1a and Mef2 on enhancers. Setd1a targets are highly expressed in pyramidal neurons and display a complex pattern of transcriptional up- and downregulations shaped by presumed opposing functions of Setd1a on promoters and Mef2-bound enhancers. Notably, evolutionarily conserved Setd1a targets are associated with neuropsychiatric genetic risk burden. Reinstating Setd1a expression in adulthood rescues cognitive deficits. Finally, we identify LSD1 as a major counteracting demethylase for Setd1a and show that its pharmacological antagonism results in a full rescue of the behavioral and morphological deficits in Setd1a-deficient mice. Our findings advance understanding of how SETD1A mutations predispose to schizophrenia (SCZ) and point to novel therapeutic interventions.
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Affiliation(s)
- Jun Mukai
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA
| | - Enrico Cannavò
- Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA
| | - Gregg W Crabtree
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA
| | - Ziyi Sun
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Anastasia Diamantopoulou
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Pratibha Thakur
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA
| | - Chia-Yuan Chang
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Yifei Cai
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Stavros Lomvardas
- Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA; Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Department of Neuroscience, Columbia University, New York, NY 10032, USA
| | - Atsushi Takata
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Fukuura 3-9, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Bin Xu
- Department of Psychiatry, Columbia University Medical Center, New York, NY 10032, USA
| | - Joseph A Gogos
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Mortimer B. Zuckerman Mind Brain and Behavior Institute Columbia University, New York, NY 10027, USA; Department of Neuroscience, Columbia University, New York, NY 10032, USA.
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16
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Wang C, Xing H, Jiang X, Zeng J, Liu Z, Chen J, Wu Y. Cerebral Phaeohyphomycosis Caused by Exophiala dermatitidis in a Chinese CARD9-Deficient Patient: A Case Report and Literature Review. Front Neurol 2019; 10:938. [PMID: 31551907 PMCID: PMC6734004 DOI: 10.3389/fneur.2019.00938] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/13/2019] [Indexed: 12/19/2022] Open
Abstract
Exophiala dermatitidis, a dematiaceous fungus typically found in decaying organic matter worldwide, is a rare cause of fungal infections. Cerebral phaeohyphomycosis is a sporadic but often fatal infection of the brain caused by E. dermatitidis. However, due to limited reports, little is known about its specific predisposing factors, clinical manifestation, and optimal treatment modality. Here, we report a clinical presentation and management of cerebral phaeohyphomycosis in a Chinese patient. An otherwise healthy, young male who was diagnosed with neck fungal lymphadenitis caused by E. dermatitidis 7 months prior and was treated with itraconazole, presented later with progressive intracranial hypertension and persistent coma. Culture of the neck lymphoid tissue produced growth of a black yeast-like fungus, which was identified as E. dermatitidis by sequencing of the ribosomal DNA internal transcribed spacer (ITS) domains. Accordingly, a cerebral biopsy was performed, and the pathological report showed mycelia and fungal granulomas. We also sequenced CARD9 in the patient and found him to be homozygous for loss-of-function mutation; his parents were heterozygous for the same mutation. This is a first case report of cerebral phaeohyphomycosis caused by E. dermatitidis in a CARD9-deficient Chinese patient. He eventually succumbed to brain herniation and severe lung infection with a poor response to therapy. Thus, previously healthy patients with unexplained invasive E. dermatitidis infection, at any age, should be tested for inherited CARD9 deficiency.
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Affiliation(s)
- Chen Wang
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Hongyi Xing
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobing Jiang
- Department of Neurosurgery, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Jingsi Zeng
- Department of Dermatology and Venereology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Zhijun Liu
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Jixiang Chen
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Wu
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
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17
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Bergendahl LT, Gerasimavicius L, Miles J, Macdonald L, Wells JN, Welburn JPI, Marsh JA. The role of protein complexes in human genetic disease. Protein Sci 2019; 28:1400-1411. [PMID: 31219644 DOI: 10.1002/pro.3667] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/10/2019] [Indexed: 12/20/2022]
Abstract
Many human genetic disorders are caused by mutations in protein-coding regions of DNA. Taking protein structure into account has therefore provided key insight into the molecular mechanisms underlying human genetic disease. Although most studies have focused on the intramolecular effects of mutations, the critical role of the assembly of proteins into complexes is being increasingly recognized. Here, we review multiple ways in which consideration of protein complexes can help us to understand and explain the effects of pathogenic mutations. First, we discuss disorders caused by mutations that perturb intersubunit interactions in homomeric and heteromeric complexes. Second, we address how protein complex assembly can facilitate a dominant-negative mechanism, whereby mutated subunits can disrupt the activity of wild-type protein. Third, we show how mutations that change protein expression levels can lead to damaging stoichiometric imbalances. Finally, we review how mutations affecting different subunits of the same heteromeric complex often cause similar diseases, whereas mutations in different interfaces of the same subunit can cause distinct phenotypes.
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Affiliation(s)
- L Therese Bergendahl
- MRC Human Genetics Unit, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, United Kingdom
| | - Lukas Gerasimavicius
- MRC Human Genetics Unit, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, United Kingdom
| | - Jamilla Miles
- MRC Human Genetics Unit, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, United Kingdom
| | - Lewis Macdonald
- MRC Human Genetics Unit, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, United Kingdom
| | - Jonathan N Wells
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, 14850
| | - Julie P I Welburn
- Wellcome Trust Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, United Kingdom
| | - Joseph A Marsh
- MRC Human Genetics Unit, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, United Kingdom
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18
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Carey CM, Govande AA, Cooper JM, Hartley MK, Kranzusch PJ, Elde NC. Recurrent Loss-of-Function Mutations Reveal Costs to OAS1 Antiviral Activity in Primates. Cell Host Microbe 2019; 25:336-343.e4. [PMID: 30713099 DOI: 10.1016/j.chom.2019.01.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/07/2018] [Accepted: 12/28/2018] [Indexed: 11/16/2022]
Abstract
Immune responses counteract infections but also cause collateral damage to hosts. Oligoadenylate synthetase 1 (OAS1) binds double-stranded RNA from invading viruses and produces 2'-5' linked oligoadenylate (2-5A) to activate ribonuclease L (RNase L), which cleaves RNA to inhibit virus replication. OAS1 can also undergo autoactivation by host RNAs, a potential trade-off to antiviral activity. We investigated functional variation in primate OAS1 as a model for how immune pathways evolve to mitigate costs and observed a surprising frequency of loss-of-function variation. In gorillas, we identified a polymorphism that severely decreases catalytic function, mirroring a common variant in humans that impairs 2-5A synthesis through alternative splicing. OAS1 loss-of-function variation is also common in monkeys, including complete loss of 2-5A synthesis in tamarins. The frequency of loss-of-function alleles suggests that costs associated with OAS1 activation can be so detrimental to host fitness that pathogen-protective effects are repeatedly forfeited.
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Affiliation(s)
- Clayton M Carey
- Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Apurva A Govande
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA; Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Juliane M Cooper
- Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Melissa K Hartley
- Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Philip J Kranzusch
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA; Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Nels C Elde
- Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA.
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19
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Abstract
Wnts determine cell polarity, cell proliferation, and cell differentiation during embryogenesis and play an essential role during tooth development initiation and morphogenesis. Wnt/β-catenin signaling has a time-dependent role in development because various signaling molecules that mutually interact are involved in the pathway, and tight regulation of the pathway is essential for normal development. Studies investigating how the Wnt/β-catenin signaling pathway controls the different stages of tooth development are rare. Specifically, the effects of Wnt/β-catenin signaling loss of function on different stages of tooth development are currently unknown. Here, we report the stage-dependent role of Wnt/β-catenin signaling in tooth development. In vivo loss and gain of function of Wnt/β-catenin signaling were implemented through the genetic overexpression of DKK1 with heat shock-inducible transgenic models and the pharmacologic inhibition of β-catenin destruction complex formation in zebrafish, respectively. We demonstrated that transient inhibition of Wnt/β-catenin signaling interrupted tooth development in a stage-dependent manner and conditional activation of Wnt/β-catenin signaling during 4V morphogenesis inhibited the development of 3V. These findings suggest that Wnt/β-catenin signaling plays an important role in the morphogenesis of teeth and the initiation of sequential tooth development in a stage-dependent manner.
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Affiliation(s)
- J S Shim
- 1 Department of Prosthodontics, Korea University Ansan Hospital, Ansan-si, Republic of Korea
| | - B Kim
- 2 Graduate School of Medicine, Korea University, Ansan-si, Republic of Korea
| | - H C Park
- 2 Graduate School of Medicine, Korea University, Ansan-si, Republic of Korea
| | - J J Ryu
- 3 Department of Prosthodontics Korea University Anam Hospital, Seoul, Republic of Korea
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20
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Seong KM, Coates BS, Berenbaum MR, Clark JM, Pittendrigh BR. Comparative CYP-omic analysis between the DDT-susceptible and -resistant Drosophila melanogaster strains 91-C and 91-R. Pest Manag Sci 2018; 74:2530-2543. [PMID: 29656515 DOI: 10.1002/ps.4936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/28/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Cytochrome P450 monooxygenases (P450s) are involved in the biosynthesis of endogenous intracellular compounds and the metabolism of xenobiotics, including chemical insecticides. We investigated the structural and expression level variance across all P450 genes with respect to the evolution of insecticide resistance under multigenerational dichlorodiphenyltrichloroethane (DDT) selection. RESULTS RNA-sequencing (RNA-seq) and reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR) indicated that the transcript levels of seven P450 genes were significantly up-regulated and three P450 genes were down-regulated in the DDT-resistant strain 91-R, as compared to the control strain 91-C. The overexpression of Cyp6g1 was associated with the presence of an Accord and an HMS-Beagle element insertion in the 5' upstream region in conjunction with copy number variation in the 91-R strain, but not in the 91-C strain. A total of 122 (50.2%) fixed nonsynonymous (amino acid-changing) mutations were found between 91-C and 91-R, and 20 (8.2%) resulted in amino acid changes within functional domains. Three P450 proteins were truncated as a result of premature stop codons and fixed between strains. CONCLUSION Our results demonstrate that a combination of changes in P450 protein-coding regions and transcript levels are possibly associated with DDT resistance, and thereby suggest that selection for variant function may occur within this gene family in response to chronic DDT exposure. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Keon Mook Seong
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Brad S Coates
- USDA-ARS, Corn Insects & Crop Genetics Research Unit, Iowa State University, Ames, IA, USA
| | - May R Berenbaum
- Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - John M Clark
- Department of Veterinary & Animal Science, University of Massachusetts, Amherst, MA, USA
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21
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Wu Z, Derks MFL, Dibbits B, Megens HJ, Groenen MAM, Crooijmans RPMA. A Novel Loss-of-Function Variant in Transmembrane Protein 263 (TMEM263) of Autosomal Dwarfism in Chicken. Front Genet 2018; 9:193. [PMID: 29930570 PMCID: PMC6001002 DOI: 10.3389/fgene.2018.00193] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/11/2018] [Indexed: 12/20/2022] Open
Abstract
Autosomal dwarfism (adw) in chickens is a growth deficiency caused by a recessive mutation. Characteristic for adw is an approximately 30% growth reduction with short shank. The adw variant was first recognized in the Cornell K-strain of White Leghorns, but the genetic causal variant remained unknown. To identify the causal variant underlying the adw phenotype, fine mapping was conducted on chromosome 1, within 52-56 Mb. This region was known to harbor the causal variant from previous linkage studies. We compared whole-genome sequence data of this region from normal-sized and adw chickens in order to find the unique causal variant. We identified a novel nonsense mutation NP_001006244.1:p.(Trp59∗), in the transmembrane protein 263 gene (TMEM263), completely associated with adw. The nonsense mutation truncates the transmembrane protein within the membrane-spanning domain, expected to cause a dysfunctional protein. TMEM263 is reported to be associated with bone mineral deposition in humans, and the protein shows interaction with growth hormone 1 (GH1). Our study presents molecular genetic evidence for a novel loss-of-function variant, which likely alters body growth and development in autosomal dwarf chicken.
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22
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Zhang H, Luo J, Liu L, Li J, Fu Q, Chen W, Yang S, Shang W, Wang H, Deng R, Sun L, Zhu X, Wang C. Transplantation for infantile nephronophthisis with loss-of-function mutation in NPHP3: Lesson from a case. Pediatr Transplant 2018; 22:e13233. [PMID: 29869359 DOI: 10.1111/petr.13233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/06/2018] [Indexed: 12/16/2022]
Abstract
The choice of KT only or CLKT for infantile NPHP with mild liver fibrosis is understudied. A 5-year-old girl was transferred to our center for KT due to ESRD. Her primary disease was infantile NPHP with compound heterozygous NPHP3 mutations: c.458A>C(p.Q153P)/missense mutation and c.2032A>T(p. K678X)/nonsense mutation. The patient had elevated liver enzymes and biopsy-proven liver fibrosis. As liver synthesis was acceptable, only KT was performed. However, liver fibrosis progressed at 1.5 years after transplantation, manifested with portal hypertension and hypersplenism. Common causes for portal hypertension were excluded, and the progression was attributed to NPHP. AMR attacked allograft at about 2 years post-transplant. To solve both the liver and the kidney problems, CLKT was performed. Her liver and kidney function recovered initially, but she unfortunately died of pneumonia and subsequent intracranial hemorrhage two weeks later. Nonsense mutation in NPHP3 gene may be correlated with rapid progression of liver disease in infantile NPHP. More studies are required to determine the role of CLKT in these cases; however, combined transplantation may improve long-term graft and patient survival.
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Affiliation(s)
- Huanxi Zhang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jiayue Luo
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Longshan Liu
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jun Li
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qian Fu
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenfang Chen
- Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shicong Yang
- Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjun Shang
- Department of Kidney Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongyang Wang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ronghai Deng
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liangzhong Sun
- Department of Pediatrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Zhu
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Changxi Wang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory on Organ Donation and Transplant Immunology, Guangzhou, China
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23
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Chen E, Yang F, He H, Lei L, Liu R, Du L, Dong J, Wang M, Yang J. Decreased level of RASSF6 in sporadic colorectal cancer and its anti-tumor effects both in vitro and in vivo. Oncotarget 2016; 7:19813-23. [PMID: 27009808 DOI: 10.18632/oncotarget.7852] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 02/11/2016] [Indexed: 12/24/2022] Open
Abstract
Ras-association domain family protein 6 (RASSF6) is a member of tumor suppressor RASSFs family with a wide range of function from RAS interaction, Hippo signaling involvement to cell cycle and apoptosis regulation. RASSF6 is reported inactivated in various types of cancer. However, whether RASSF6 is associated with colorectal cancer and the underlying mechanisms have yet to be investigated. In our previous exome sequencing study, we found a somatic loss-of-function (LoF) mutation in RASSF6 in one sporadic colorectal cancer (sCRC) patient, and two missense mutations in deep sequencing group of sCRC samples, implying the possibility that RASSF6 may be involved in the pathogenesis of sCRC. In this study, we demonstrate that RASSF6 acts as a tumor suppressor in colon cancer cells. Decreased level of RASSF6 was observed in adenocarcinoma compared to normal tissues, especially in advanced tumor cases. Further experiments showed exogenous introduction of RASSF6 into LoVo cells suppressed cell proliferation, migration, invasion, and induced apoptosis in vitro as well as tumor growth in vivo. In contrast, knockdown of RASSF6 in HT-29 cells showed the opposite effects. Taken together, our results suggest, in addition to epigenetics changes, functional somatic mutations may also contribute to the downregulation of RASSF6 and further participate in the pathogenesis of sCRC. RASSF6 may serve as a novel candidate against tumor growth for sCRC.
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24
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Imagawa E, Higashimoto K, Sakai Y, Numakura C, Okamoto N, Matsunaga S, Ryo A, Sato Y, Sanefuji M, Ihara K, Takada Y, Nishimura G, Saitsu H, Mizuguchi T, Miyatake S, Nakashima M, Miyake N, Soejima H, Matsumoto N. Mutations in genes encoding polycomb repressive complex 2 subunits cause Weaver syndrome. Hum Mutat 2017; 38:637-648. [PMID: 28229514 DOI: 10.1002/humu.23200] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 02/13/2017] [Accepted: 02/18/2017] [Indexed: 12/30/2022]
Abstract
Weaver syndrome (WS) is a rare congenital overgrowth disorder caused by heterozygous mutations in EZH2 (enhancer of zeste homolog 2) or EED (embryonic ectoderm development). EZH2 and EED are core components of the polycomb repressive complex 2 (PRC2), which possesses histone methyltransferase activity and catalyzes trimethylation of histone H3 at lysine 27. Here, we analyzed eight probands with clinically suspected WS by whole-exome sequencing and identified three mutations: a 25.4-kb deletion partially involving EZH2 and CUL1 (individual 1), a missense mutation (c.707G>C, p.Arg236Thr) in EED (individual 2), and a missense mutation (c.1829A>T, p.Glu610Val) in SUZ12 (suppressor of zeste 12 homolog) (individual 3) inherited from her father (individual 4) with a mosaic mutation. SUZ12 is another component of PRC2 and germline mutations in SUZ12 have not been previously reported in humans. In vitro functional analyses demonstrated that the identified EED and SUZ12 missense mutations cause decreased trimethylation of lysine 27 of histone H3. These data indicate that loss-of-function mutations of PRC2 components are an important cause of WS.
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Affiliation(s)
- Eri Imagawa
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ken Higashimoto
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Nobuhiko Okamoto
- Department of Medical Genetics, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - Satoko Matsunaga
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Akihide Ryo
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yoshinori Sato
- Department of Molecular Biology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kenji Ihara
- Department of Pediatrics, Faculty of Medicine, Oita University, Yufu, Japan
| | - Yui Takada
- Department of Pediatrics, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | - Gen Nishimura
- Department of Pediatric Imaging, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takeshi Mizuguchi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Satoko Miyatake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Mitsuko Nakashima
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hidenobu Soejima
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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25
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Zaharieva IT, Thor MG, Oates EC, van Karnebeek C, Hendson G, Blom E, Witting N, Rasmussen M, Gabbett MT, Ravenscroft G, Sframeli M, Suetterlin K, Sarkozy A, D'Argenzio L, Hartley L, Matthews E, Pitt M, Vissing J, Ballegaard M, Krarup C, Slørdahl A, Halvorsen H, Ye XC, Zhang LH, Løkken N, Werlauff U, Abdelsayed M, Davis MR, Feng L, Phadke R, Sewry CA, Morgan JE, Laing NG, Vallance H, Ruben P, Hanna MG, Lewis S, Kamsteeg EJ, Männikkö R, Muntoni F. Loss-of-function mutations in SCN4A cause severe foetal hypokinesia or 'classical' congenital myopathy. Brain 2015; 139:674-91. [PMID: 26700687 PMCID: PMC4766374 DOI: 10.1093/brain/awv352] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/13/2015] [Indexed: 11/15/2022] Open
Abstract
See Cannon (doi:
10.1093/brain/awv400
) for a scientific commentary on this article.
Congenital myopathies are a clinically and genetically heterogeneous group of muscle disorders characterized by congenital or early-onset hypotonia and muscle weakness, and specific pathological features on muscle biopsy. The phenotype ranges from foetal akinesia resulting in
in utero
or neonatal mortality, to milder disorders that are not life-limiting. Over the past decade, more than 20 new congenital myopathy genes have been identified. Most encode proteins involved in muscle contraction; however, mutations in ion channel-encoding genes are increasingly being recognized as a cause of this group of disorders.
SCN4A
encodes the α-subunit of the skeletal muscle voltage-gated sodium channel (Na
v
1.4). This channel is essential for the generation and propagation of the muscle action potential crucial to muscle contraction. Dominant
SCN4A
gain-of-function mutations are a well-established cause of myotonia and periodic paralysis. Using whole exome sequencing, we identified homozygous or compound heterozygous
SCN4A
mutations in a cohort of 11 individuals from six unrelated kindreds with congenital myopathy. Affected members developed
in utero
- or neonatal-onset muscle weakness of variable severity. In seven cases, severe muscle weakness resulted in death during the third trimester or shortly after birth. The remaining four cases had marked congenital or neonatal-onset hypotonia and weakness associated with mild-to-moderate facial and neck weakness, significant neonatal-onset respiratory and swallowing difficulties and childhood-onset spinal deformities. All four surviving cohort members experienced clinical improvement in the first decade of life. Muscle biopsies showed myopathic features including fibre size variability, presence of fibrofatty tissue of varying severity, without specific structural abnormalities. Electrophysiology suggested a myopathic process, without myotonia.
In vitro
functional assessment in HEK293 cells of the impact of the identified
SCN4A
mutations showed loss-of-function of the mutant Na
v
1.4 channels. All, apart from one, of the mutations either caused fully non-functional channels, or resulted in a reduced channel activity. Each of the affected cases carried at least one full loss-of-function mutation. In five out of six families, a second loss-of-function mutation was present on the trans allele. These functional results provide convincing evidence for the pathogenicity of the identified mutations and suggest that different degrees of loss-of-function in mutant Na
v
1.4 channels are associated with attenuation of the skeletal muscle action potential amplitude to a level insufficient to support normal muscle function. The results demonstrate that recessive loss-of-function
SCN4A
mutations should be considered in patients with a congenital myopathy.
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Affiliation(s)
- Irina T Zaharieva
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Michael G Thor
- 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Emily C Oates
- 3 Institute for Neuroscience and Muscle Research, Children's Hospital at Westmead, Westmead, New South Wales, 2145, Australia 4 Discipline of Paediatrics and Child Health, Faculty of Medicine, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Clara van Karnebeek
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Glenda Hendson
- 4 Discipline of Paediatrics and Child Health, Faculty of Medicine, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Eveline Blom
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Nanna Witting
- 8 Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, DK2100 Copenhagen, Denmark
| | - Magnhild Rasmussen
- 9 Department of Clinical Neuroscience for Children, Oslo University Hospital, 0424, Oslo, Norway 10 Unit for Hereditary Neuromuscular Disorders, Oslo University Hospital, 0424, Oslo, Norway
| | - Michael T Gabbett
- 11 Genetic Health Queensland, Royal Brisbane & Women's Hospital & Griffith University, Brisbane, Australia
| | - Gianina Ravenscroft
- 12 The Harry Perkins Institute of Medical Research, Centre for Medical Research, The University of Western Australia, Perth, 6009, Western Australia, Australia
| | - Maria Sframeli
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Karen Suetterlin
- 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Anna Sarkozy
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Luigi D'Argenzio
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Louise Hartley
- 13 Department of Child Health, University Hospital Wales, Cardiff, CF14 4XW, UK
| | - Emma Matthews
- 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Matthew Pitt
- 14 Neurophysiology Department, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, UK
| | - John Vissing
- 8 Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, DK2100 Copenhagen, Denmark
| | - Martin Ballegaard
- 15 Department of Clinical Neurophysiology, Rigshospitalet, University of Copenhagen, DK2100 Copenhagen, Denmark
| | - Christian Krarup
- 15 Department of Clinical Neurophysiology, Rigshospitalet, University of Copenhagen, DK2100 Copenhagen, Denmark
| | - Andreas Slørdahl
- 16 Children's Clinic, St.Olavs hospital, Trondheim University Hospital, 7006 Trondheim, Norway
| | - Hanne Halvorsen
- 17 Department of Pathology, University Hospital of North Norway, 9038 Tromsø, Norway
| | - Xin Cynthia Ye
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Lin-Hua Zhang
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Nicoline Løkken
- 8 Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, DK2100 Copenhagen, Denmark
| | - Ulla Werlauff
- 18 The Danish National Rehabilitation Center for Neuromuscular Diseases, Aarhus, 8000 Denmark
| | - Mena Abdelsayed
- 19 Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, V5A 1S6, Canada
| | - Mark R Davis
- 20 Department Molecular Genetics, Pathwest, QEII Medical Centre, Nedlands 6009, Western Australia, Australia
| | - Lucy Feng
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Rahul Phadke
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Caroline A Sewry
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK
| | - Jennifer E Morgan
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Nigel G Laing
- 12 The Harry Perkins Institute of Medical Research, Centre for Medical Research, The University of Western Australia, Perth, 6009, Western Australia, Australia
| | - Hilary Vallance
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Peter Ruben
- 19 Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, V5A 1S6, Canada
| | - Michael G Hanna
- 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Suzanne Lewis
- 5 Department of Pediatrics, Child and Family Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, 4480 Oak Street, Vancouver, B.C. V6H 3V4, Canada
| | - Erik-Jan Kamsteeg
- 21 Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Roope Männikkö
- 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Francesco Muntoni
- 1 Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, WC1N 1EH, UK 2 MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
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26
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Seong KH, Tsuda M, Tsuda-Sakurai K, Aigaki T. The plant homeodomain finger protein MESR4 is essential for embryonic development in Drosophila. Genesis 2015; 53:701-8. [PMID: 26467775 DOI: 10.1002/dvg.22906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 10/05/2015] [Accepted: 10/12/2015] [Indexed: 11/09/2022]
Abstract
Misexpression Suppressor of Ras 4 (MESR4), a plant homeodomain (PHD) finger protein with nine zinc-finger motifs has been implicated in various biological processes including the regulation of fat storage and innate immunity in Drosophila. However, the role of MESR4 in the context of development remains unclear. Here it is shown that MESR4 is a nuclear protein essential for embryonic development. Immunostaining of polytene chromosomes using anti-MESR4 antibody revealed that MESR4 binds to numerous bands along the chromosome arms. The most intense signal was detected at the 39E-F region, which is known to contain the histone gene cluster. P-element insertions in the MESR4 locus, which were homozygous lethal during embryogenesis with defects in ventral ectoderm formation and head encapsulation was identified. In the mutant embryos, expression of Fasciclin 3 (Fas3), an EGFR signal target gene was greatly reduced, and the level of EGFR signal-dependent double phosphorylated ERK (dp-ERK) remained low. However, in the context of wing vein formation, genetic interaction experiments suggested that MESR4 is involved in the EGFR signaling as a negative regulator. These results suggested that MESR4 is a novel chromatin-binding protein required for proper expression of genes including those regulated by the EGFR signaling pathway during development. genesis 53:701-708, 2015. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Ki-Hyeon Seong
- Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji-shi, Tokyo, 192-0397, Japan.,Laboratory of Molecular Genetics, RIKEN Tsukuba Institute, Tsukuba, Ibaraki, 305-0074, Japan
| | - Manabu Tsuda
- Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji-shi, Tokyo, 192-0397, Japan.,Department of Liberal Arts and Human Development, Kanagawa University of Human Services, 1-10-1, Heiseicho, Yokosuka-shi, Kanagawa, 238-8522, Japan
| | - Kayoko Tsuda-Sakurai
- Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji-shi, Tokyo, 192-0397, Japan
| | - Toshiro Aigaki
- Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji-shi, Tokyo, 192-0397, Japan
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27
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Erman B, Bilic I, Hirschmugl T, Salzer E, Çagdas D, Esenboga S, Akcoren Z, Sanal O, Tezcan I, Boztug K. Combined immunodeficiency with CD4 lymphopenia and sclerosing cholangitis caused by a novel loss-of-function mutation affecting IL21R. Haematologica 2015; 100:e216-9. [PMID: 25769540 DOI: 10.3324/haematol.2014.120980] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Baran Erman
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria Department of Pediatric Immunology, Hacettepe University of Medicine, Ankara, Turkey
| | - Ivan Bilic
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Tatjana Hirschmugl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Elisabeth Salzer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Deniz Çagdas
- Department of Pediatric Immunology, Hacettepe University of Medicine, Ankara, Turkey
| | - Saliha Esenboga
- Department of Pediatric Immunology, Hacettepe University of Medicine, Ankara, Turkey
| | - Zuhal Akcoren
- Department of Pediatric Pathology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ozden Sanal
- Department of Pediatric Immunology, Hacettepe University of Medicine, Ankara, Turkey
| | - Ilhan Tezcan
- Department of Pediatric Immunology, Hacettepe University of Medicine, Ankara, Turkey
| | - Kaan Boztug
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Austria
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Halász J, Kodad O, Hegedűs A. Identification of a recently active Prunus-specific non-autonomous Mutator element with considerable genome shaping force. Plant J 2014; 79:220-231. [PMID: 24813246 DOI: 10.1111/tpj.12551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 04/24/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
Miniature inverted-repeat transposable elements (MITEs) are known to contribute to the evolution of plants, but only limited information is available for MITEs in the Prunus genome. We identified a MITE that has been named Falling Stones, FaSt. All structural features (349-bp size, 82-bp terminal inverted repeats and 9-bp target site duplications) are consistent with this MITE being a putative member of the Mutator transposase superfamily. FaSt showed a preferential accumulation in the short AT-rich segments of the euchromatin region of the peach genome. DNA sequencing and pollination experiments have been performed to confirm that the nested insertion of FaSt into the S-haplotype-specific F-box gene of apricot resulted in the breakdown of self-incompatibility (SI). A bioinformatics-based survey of the known Rosaceae and other genomes and a newly designed polymerase chain reaction (PCR) assay verified the Prunoideae-specific occurrence of FaSt elements. Phylogenetic analysis suggested a recent activity of FaSt in the Prunus genome. The occurrence of a nested insertion in the apricot genome further supports the recent activity of FaSt in response to abiotic stress conditions. This study reports on a presumably active non-autonomous Mutator element in Prunus that exhibits a major indirect genome shaping force through inducing loss-of-function mutation in the SI locus.
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Affiliation(s)
- Júlia Halász
- Department of Genetics and Plant Breeding, Corvinus University of Budapest, P.O. Box 53, Budapest, H-1518, Hungary
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Takikawa S, Wang X, Ray C, Vakulenko M, Bell FT, Li X. Human and mouse ZFP57 proteins are functionally interchangeable in maintaining genomic imprinting at multiple imprinted regions in mouse ES cells. Epigenetics 2013; 8:1268-79. [PMID: 24135613 DOI: 10.4161/epi.26544] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Genomic imprinting is a common epigenetic phenomenon in mammals. Dysregulation of genomic imprinting has been implicated in a variety of human diseases. ZFP57 is a master regulator in genomic imprinting. Loss of ZFP57 causes loss of DNA methylation imprint at multiple imprinted regions in mouse embryos, as well as in embryonic stem (ES) cells. Similarly, mutations in human ZFP57 result in hypomethylation at many imprinted regions and are associated with transient neonatal diabetes and other human diseases. Mouse and human Zfp57 genes are located in the same syntenic block. However, mouse and human ZFP57 proteins only display about 50% sequence identity with different number of zinc fingers. It is not clear if they share similar mechanisms in maintaining genomic imprinting. Here we report that mouse and human ZFP57 proteins are functionally interchangeable. Expression of exogenous wild-type human ZFP57 could maintain DNA methylation imprint at three imprinted regions in mouse ES cells in the absence of endogenous mouse ZFP57. However, mutant human ZFP57 proteins containing the mutations found in human patients could not substitute for endogenous mouse ZFP57 in maintaining genomic imprinting in ES cells. Like mouse ZFP57, human ZFP57 and its mutant proteins could bind to mouse KAP1, the universal cofactor for KRAB zinc finger proteins, in mouse ES cells. Thus, we conclude that mouse and human ZFP57 are orthologs despite relatively low sequence identity and mouse ES cell system that we had established before is a valuable system for functional analyses of wild-type and mutant human ZFP57 proteins.
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Affiliation(s)
- Sachiko Takikawa
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
| | - Xin Wang
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
| | - Chelsea Ray
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
| | - Max Vakulenko
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
| | - Fong T Bell
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
| | - Xiajun Li
- Black Family Stem Cell Institute; Department of Developmental and Regenerative Biology; Department of Oncological Sciences; Graduate School of Biological Sciences; Icahn School of Medicine at Mount Sinai; New York, NY USA
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