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Nakayama A, Nakatochi M, Kawamura Y, Yamamoto K, Nakaoka H, Shimizu S, Higashino T, Koyama T, Hishida A, Kuriki K, Watanabe M, Shimizu T, Ooyama K, Ooyama H, Nagase M, Hidaka Y, Matsui D, Tamura T, Nishiyama T, Shimanoe C, Katsuura-Kamano S, Takashima N, Shirai Y, Kawaguchi M, Takao M, Sugiyama R, Takada Y, Nakamura T, Nakashima H, Tsunoda M, Danjoh I, Hozawa A, Hosomichi K, Toyoda Y, Kubota Y, Takada T, Suzuki H, Stiburkova B, Major TJ, Merriman TR, Kuriyama N, Mikami H, Takezaki T, Matsuo K, Suzuki S, Hosoya T, Kamatani Y, Kubo M, Ichida K, Wakai K, Inoue I, Okada Y, Shinomiya N, Matsuo H. Subtype-specific gout susceptibility loci and enrichment of selection pressure on ABCG2 and ALDH2 identified by subtype genome-wide meta-analyses of clinically defined gout patients. Ann Rheum Dis 2020; 79:657-665. [PMID: 32238385 PMCID: PMC7213308 DOI: 10.1136/annrheumdis-2019-216644] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/13/2020] [Accepted: 02/17/2020] [Indexed: 01/01/2023]
Abstract
Objectives Genome-wide meta-analyses of clinically defined gout were performed to identify subtype-specific susceptibility loci. Evaluation using selection pressure analysis with these loci was also conducted to investigate genetic risks characteristic of the Japanese population over the last 2000–3000 years. Methods Two genome-wide association studies (GWASs) of 3053 clinically defined gout cases and 4554 controls from Japanese males were performed using the Japonica Array and Illumina Array platforms. About 7.2 million single-nucleotide polymorphisms were meta-analysed after imputation. Patients were then divided into four clinical subtypes (the renal underexcretion type, renal overload type, combined type and normal type), and meta-analyses were conducted in the same manner. Selection pressure analyses using singleton density score were also performed on each subtype. Results In addition to the eight loci we reported previously, two novel loci, PIBF1 and ACSM2B, were identified at a genome-wide significance level (p<5.0×10–8) from a GWAS meta-analysis of all gout patients, and other two novel intergenic loci, CD2-PTGFRN and SLC28A3-NTRK2, from normal type gout patients. Subtype-dependent patterns of Manhattan plots were observed with subtype GWASs of gout patients, indicating that these subtype-specific loci suggest differences in pathophysiology along patients’ gout subtypes. Selection pressure analysis revealed significant enrichment of selection pressure on ABCG2 in addition to ALDH2 loci for all subtypes except for normal type gout. Conclusions Our findings on subtype GWAS meta-analyses and selection pressure analysis of gout will assist elucidation of the subtype-dependent molecular targets and evolutionary involvement among genotype, phenotype and subtype-specific tailor-made medicine/prevention of gout and hyperuricaemia.
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Tada H, Hori M, Nomura A, Hosomichi K, Nohara A, Kawashiri MA, Harada-Shiba M. A catalog of the pathogenic mutations of LDL receptor gene in Japanese familial hypercholesterolemia. J Clin Lipidol 2020; 14:346-351.e9. [PMID: 32331935 DOI: 10.1016/j.jacl.2020.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Little data exist on the pathogenic mutations of LDL receptor in Japanese familial hypercholesterolemia (FH). OBJECTIVE We aimed to catalog the pathogenic mutations of LDL receptor gene in the 2 major Japanese FH-care centers (Kanazawa University and National Cerebral and Cardiovascular Center Research Institute), where genetic testing of FH has been performed centrally on requests from institutes all over Japan during more than past 2 decades. METHODS 796 FH subjects from 472 families who had nonsynonymous mutations in LDL receptor gene were included in this study. Genetic mutations were analyzed for mutations by Sanger sequencing as well as by multiplex ligation probe dependent amplification technique for large rearrangements. Pathogenic mutations were defined either as 1) protein truncated variants, 2) registered as pathogenic in ClinVar, or Human Gene Mutation Database (HGMD), or meet the criteria of American College of Medical Genetics and Genomics guideline, or 3) CADD score > 10. RESULTS We found 138 different mutations. Among them, 132 mutations were considered as pathogenic, including 19 large rearrangement mutations. However, 6 missense mutations were classified as variants of unknown significance. A single mutation accounted for as much as 41% of the FH subjects recruited from Kanazawa University mainly due to founder gene effect, whereas many singleton mutations were found from National Cerebral and Cardiovascular Center Research Institute located in Osaka. CONCLUSIONS We provided the largest catalog of pathogenic mutations of LDL receptor gene in Japanese FH. This could aid to determine the pathogenicity of the LDL receptor genetic mutations not only in Japanese but also in other ethnicities.
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Matsumoto M, Tsuneyama K, Morimoto J, Hosomichi K, Matsumoto M, Nishijima H. Tissue-specific autoimmunity controlled by Aire in thymic and peripheral tolerance mechanisms. Int Immunol 2020; 32:117-131. [PMID: 31586207 PMCID: PMC7005526 DOI: 10.1093/intimm/dxz066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 10/02/2019] [Indexed: 01/14/2023] Open
Abstract
Tissue-specific autoimmune diseases are assumed to arise through malfunction of two checkpoints for immune tolerance: defective elimination of autoreactive T cells in the thymus and activation of these T cells by corresponding autoantigens in the periphery. However, evidence for this model and the outcome of such alterations in each or both of the tolerance mechanisms have not been sufficiently investigated. We studied these issues by expressing human AIRE (huAIRE) as a modifier of tolerance function in NOD mice wherein the defects of thymic and peripheral tolerance together cause type I diabetes (T1D). Additive huAIRE expression in the thymic stroma had no major impact on the production of diabetogenic T cells in the thymus. In contrast, huAIRE expression in peripheral antigen-presenting cells (APCs) rendered the mice resistant to T1D, while maintaining other tissue-specific autoimmune responses and antibody production against an exogenous protein antigen, because of the loss of Xcr1+ dendritic cells, an essential component for activating diabetogenic T cells in the periphery. These results contrast with our recent demonstration that huAIRE expression in both the thymic stroma and peripheral APCs resulted in the paradoxical development of muscle-specific autoimmunity. Our results reveal that tissue-specific autoimmunity is differentially controlled by a combination of thymic function and peripheral tolerance, which can be manipulated by expression of huAIRE/Aire in each or both of the tolerance mechanisms.
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Yahara H, Horita S, Yanamoto S, Kitagawa Y, Asaka T, Yoda T, Morita K, Michi Y, Takechi M, Shimasue H, Maruoka Y, Kondo E, Kusukawa J, Tsujiguchi H, Sato T, Kannon T, Nakamura H, Tajima A, Hosomichi K, Yahara K. A Targeted Genetic Association Study of the Rare Type of Osteomyelitis. J Dent Res 2020; 99:271-276. [PMID: 31977282 DOI: 10.1177/0022034520901519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Chronic nonbacterial osteomyelitis is a rare bone disorder that can be found in the jaw. It is often associated with systemic conditions, including autoimmune deficiencies. However, little is known about how the genetic and immunologic background of patients influences the disease. Here, we focus on human leukocyte antigen (HLA), killer cell immunoglobulin-like receptors (KIRs), and their specific combinations that have been difficult to analyze owing to their high diversity. We employed a recently developed technology of simultaneous typing of HLA alleles and KIR haplotype and investigated alleles of the 35 HLA loci and KIR haplotypes composed of centromeric and telomeric motifs in 18 cases and 18 controls for discovery and 472 independent controls for validation. We identified an amino acid substitution of threonine at position 94 of HLA-C in combination with the telomeric KIR genotype of haplotype tA01/tB01 that had significantly higher frequency (>20%) in the case population than in both control populations. Multiple logistic regression analysis based on a dominant model with adjustments for age and sex revealed and validated its statistical significance and high predictive accuracy (C-statistic ≥0.85). Structure-based analysis revealed that the combination of the amino acid change in HLA-C and the telomeric genotype tA01/tB01 could be associated with lower stability of HLA-C. This is the first case-control study of a rare disease that employed the latest sequencing technology enabling simultaneous typing and investigated amino acid polymorphisms at HLA loci in combination with KIR haplotype.
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Higashino T, Morimoto K, Nakaoka H, Toyoda Y, Kawamura Y, Shimizu S, Nakamura T, Hosomichi K, Nakayama A, Ooyama K, Ooyama H, Shimizu T, Ueno M, Ito T, Tamura T, Naito M, Nakashima H, Kawaguchi M, Takao M, Kawai Y, Osada N, Ichida K, Yamamoto K, Suzuki H, Shinomiya N, Inoue I, Takada T, Matsuo H. Dysfunctional missense variant of OAT10/SLC22A13 decreases gout risk and serum uric acid levels. Ann Rheum Dis 2019; 79:164-166. [PMID: 31780526 PMCID: PMC6937405 DOI: 10.1136/annrheumdis-2019-216044] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/13/2019] [Accepted: 09/30/2019] [Indexed: 11/17/2022]
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Takezaki A, Tsukumo SI, Setoguchi Y, Ledford JG, Goto H, Hosomichi K, Uehara H, Nishioka Y, Yasutomo K. A homozygous SFTPA1 mutation drives necroptosis of type II alveolar epithelial cells in patients with idiopathic pulmonary fibrosis. J Exp Med 2019; 216:2724-2735. [PMID: 31601679 PMCID: PMC6888986 DOI: 10.1084/jem.20182351] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/29/2019] [Accepted: 09/06/2019] [Indexed: 12/25/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal disease characterized by scattered fibrotic lesions in the lungs. The pathogenesis and genetic basis of IPF remain poorly understood. Here, we show that a homozygous missense mutation in SFTPA1 caused IPF in a consanguineous Japanese family. The mutation in SFTPA1 disturbed the secretion of SFTPA1 protein. Sftpa1 knock-in (Sftpa1-KI) mice that harbored the same mutation as patients spontaneously developed pulmonary fibrosis that was accelerated by influenza virus infection. Sftpa1-KI mice showed increased necroptosis of alveolar epithelial type II (AEII) cells with phosphorylation of IRE1α leading to JNK-mediated up-regulation of Ripk3. The inhibition of JNK ameliorated pulmonary fibrosis in Sftpa1-KI mice, and overexpression of Ripk3 in Sftpa1-KI mice treated with a JNK inhibitor worsened pulmonary fibrosis. These findings provide new insight into the mechanisms of IPF in which a mutation in SFTPA1 promotes necroptosis of AEII cells through JNK-mediated up-regulation of Ripk3, highlighting the necroptosis pathway as a therapeutic target for IPF.
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Yoshida S, Nomura A, Tada H, Sakata K, Nakanishi C, Fujino N, Hosomichi K, Tajima A, Takamura M. 3073Leveraging transcriptome sequencing for detecting novel disease-related pathways using human cardiac sarcoidosis myocardium biopsies. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background/Introduction
Cardiac sarcoidosis (CS) is one of the main causes of poor outcomes in patients with sarcoidosis, a systemic granulomatous disorder of complex etiology including a genetically susceptible host and specific exposure to disease-triggering antigens. Recently, transcriptome analysis using sarcoidosis peripheral monocytes was reported to be useful for exploring genetic susceptibility and novel disease-causing pathways. However, transcriptome sequencing has not been used to explore disease-related genes and pathways directly using human CS myocardial biopsies.
Purpose
This study aimed to identify transcriptome profiles and novel disease-related pathways of CS by comparing human CS myocardial biopsies with control samples using ribonucleic acid (RNA) sequencing (RNA-Seq).
Methods
We assessed 30 patients with suspected myocardial disorders who underwent transcatheter endomyocardial biopsies at our University Hospital, Japan. Of those, 7 were clinically diagnosed with CS, 9 with hypertrophic cardiomyopathy (HCM), and 14 with dilated cardiomyopathy (DCM). Messenger RNAs were extracted from cardiac muscle biopsies using the Ovation SoLo RNA-Seq System (NuGEN Technologies), according to the manufacturer's instructions. Sequencing was performed with coverage of approximately 20 million reads per sample using Illumina HiSeq 2000. Sequencing reads were mapped using the STAR 2-pass method with GRCh37 as the reference. The DESeq2 R package (version 3.8) was used for further analyses. Principal component analysis (PCA) on gene expression was conducted for detecting outliers such as non-muscular samples. Differential gene expression analysis was performed between the 7 patients with CS and 23 patients with cardiomyopathy (HCM and DCM, non-CS). Gene Ontology (GO) enrichment analysis was conducted to estimate possible disease-related pathways.
Results
We successfully sequenced 60 myocardial biopsy samples (original and biological duplicates) from 30 CS patients. Of these, 2 outlier samples shown by the PCA plot were removed, and 58 were used for further analyses. We found 243 genes that were differentially expressed between CS patients and non-CS patients. Top-rated genes were RP11–366M4.8, RELN, S100A6, WASF3and UCHL1. Pathway analysis using GO demonstrated enrichment oflymphocyte activation (P=4.8x10–16), organelle fission (P=6.1x10–14), the M phase of the mitotic cell cycle (P=2.2x10–13), nuclear division (P=2.4x10–13), mitosis (P=2.4x10–13) and T-cell activation pathways (P=1.2x10–12).
Conclusions
Our differential gene expression and pathway analysis results using human CS myocardial biopsies suggested that lymphocyte activation, specifically the T-cell activation pathway, is linked to CS pathogenesis. Further studies are needed to decipher the role of specific genes related to genetic susceptibility and/or pathways associated with CS occurrence.
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Ogawa K, Okuno T, Hosomichi K, Hosokawa A, Hirata J, Suzuki K, Sakaue S, Kinoshita M, Asano Y, Miyamoto K, Inoue I, Kusunoki S, Okada Y, Mochizuki H. Next-generation sequencing identifies contribution of both class I and II HLA genes on susceptibility of multiple sclerosis in Japanese. J Neuroinflammation 2019; 16:162. [PMID: 31382992 PMCID: PMC6683481 DOI: 10.1186/s12974-019-1551-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/22/2019] [Indexed: 12/13/2022] Open
Abstract
Background The spectrum of classical and non-classical HLA genes related to the risk of multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) in the Japanese population has not been studied in detail. We conducted a case-control analysis of classical and non-classical HLA genes. Methods We used next-generation sequencing (NGS)-based HLA genotyping methods for mapping risk for 45 MS patients, 31 NMOSD patients, and 429 healthy controls. We evaluated the association of the HLA variants with the risk of MS and NMOSD using logistic regression analysis and Fisher’s exact test. Results We confirmed that HLA-DRB1*15:01 showed the strongest association with MS (P = 2.1 × 10−5; odds ratio [OR] = 3.44, 95% confidence interval [95% CI] = 1.95–6.07). Stepwise conditional analysis identified HLA-DRB1*04:05, HLA-B*39:01, and HLA-B*15:01 as being associated with independent MS susceptibility (PConditional < 8.3 × 10−4). With respect to amino acid polymorphisms in HLA genes, we found that phenylalanine at HLA-DQβ1 position 9 had the strongest effect on MS susceptibility (P = 3.7 × 10−8, OR = 3.48, 95% CI = 2.23–5.43). MS risk at HLA-DQβ1 Phe9 was independent of HLA-DRB1*15:01 (PConditional = 1.5 × 10−5, OR = 2.91, 95% CI = 1.79–4.72), while HLA-DRB1*15:01 was just significant when conditioned on HLA-DQβ1 Phe9 (PConditional = 0.037). Regarding a case-control analysis for NMOSD, HLA-DQA1*05:03 had a significant association with NMOSD (P = 1.5 × 10−4, OR = 6.96, 95% CI = 2.55–19.0). Conclusions We identified HLA variants associated with the risk of MS and NMOSD. Our study contributes to the understanding of the genetic architecture of MS and NMOSD in the Japanese population. Electronic supplementary material The online version of this article (10.1186/s12974-019-1551-z) contains supplementary material, which is available to authorized users.
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Aoyama KI, Kimura M, Yamazaki H, Uchibori M, Kojima R, Osawa Y, Hosomichi K, Ota Y, Tanaka M, Yamada S, Nishimura G. New PCNT candidate missense variant in a patient with oral and maxillofacial osteodysplasia: a case report. BMC MEDICAL GENETICS 2019; 20:126. [PMID: 31311520 PMCID: PMC6636042 DOI: 10.1186/s12881-019-0858-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/10/2019] [Indexed: 12/01/2022]
Abstract
Background Osteodysplasia of the oral and maxillofacial bone is generally accompanied by systemic bone abnormalities (such as short stature, joint contracture) or other systemic abnormalities (such as renal, dermatological, cardiovascular, optic, or hearing disorders). However, it does not always present this way. Recent reports have suggested that genome-wide sequencing is an effective method for identifying rare or new disorders. Here, we performed whole-exome sequencing (WES) in a patient with a unique form of acquired, local osteodysplasia of the oral and maxillofacial region. Case presentation A 46-year-old woman presented to our hospital with the complaint of gradually moving mandibular teeth (for 6 months), changing facial appearance, and acquired osteolysis of the oral and maxillofacial bones, showing mandibular hypoplasia without family history. Upon skeletal examination, there were no abnormal findings outside of the oral and maxillofacial area; the patient had a height of 157 cm and bone mineral density (according to dual energy x-ray absorptiometry) of 90%. Results of blood and urine tests, including evaluation of bone metabolism markers and neurological and cardiovascular examinations, were normal. We performed WES of genomic DNA extracted from the blood of this patient and her mother, who did not have the disease, as a negative control. We identified 83 new missense variants in the patient, not detected in her mother, including a candidate single nucleotide variant in exon 14 of PCNT (pericentrin). Critical homozygous or compound heterozygous variants in PCNT are a known cause of microcephalic osteodysplastic primordial dwarfism type II accompanied by mandibular hypoplasia, which is similar to the maxillofacial phenotype in this patient. Conclusions Protein simulations performed using Polymorphism Phenotyping v2 and Combined Annotation Dependent Depletion software indicated that this missense variant is likely to disrupt the PCNT protein structure. These results suggest that this is a new form of osteolysis related to this PCNT variant.
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Kawamura Y, Nakaoka H, Nakayama A, Okada Y, Yamamoto K, Higashino T, Sakiyama M, Shimizu T, Ooyama H, Ooyama K, Nagase M, Hidaka Y, Shirahama Y, Hosomichi K, Nishida Y, Shimoshikiryo I, Hishida A, Katsuura-Kamano S, Shimizu S, Kawaguchi M, Uemura H, Ibusuki R, Hara M, Naito M, Takao M, Nakajima M, Iwasawa S, Nakashima H, Ohnaka K, Nakamura T, Stiburkova B, Merriman TR, Nakatochi M, Ichihara S, Yokota M, Takada T, Saitoh T, Kamatani Y, Takahashi A, Arisawa K, Takezaki T, Tanaka K, Wakai K, Kubo M, Hosoya T, Ichida K, Inoue I, Shinomiya N, Matsuo H. Genome-wide association study revealed novel loci which aggravate asymptomatic hyperuricaemia into gout. Ann Rheum Dis 2019; 78:1430-1437. [PMID: 31289104 PMCID: PMC6788923 DOI: 10.1136/annrheumdis-2019-215521] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 01/06/2023]
Abstract
Objective The first ever genome-wide association study (GWAS) of clinically defined gout cases and asymptomatic hyperuricaemia (AHUA) controls was performed to identify novel gout loci that aggravate AHUA into gout. Methods We carried out a GWAS of 945 clinically defined gout cases and 1003 AHUA controls followed by 2 replication studies. In total, 2860 gout cases and 3149 AHUA controls (all Japanese men) were analysed. We also compared the ORs for each locus in the present GWAS (gout vs AHUA) with those in the previous GWAS (gout vs normouricaemia). Results This new approach enabled us to identify two novel gout loci (rs7927466 of CNTN5 and rs9952962 of MIR302F) and one suggestive locus (rs12980365 of ZNF724) at the genome-wide significance level (p<5.0×10–8). The present study also identified the loci of ABCG2, ALDH2 and SLC2A9. One of them, rs671 of ALDH2, was identified as a gout locus by GWAS for the first time. Comparing ORs for each locus in the present versus the previous GWAS revealed three ‘gout vs AHUA GWAS’-specific loci (CNTN5, MIR302F and ZNF724) to be clearly associated with mechanisms of gout development which distinctly differ from the known gout risk loci that basically elevate serum uric acid level. Conclusions This meta-analysis is the first to reveal the loci associated with crystal-induced inflammation, the last step in gout development that aggravates AHUA into gout. Our findings should help to elucidate the molecular mechanisms of gout development and assist the prevention of gout attacks in high-risk AHUA individuals.
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Elbadry MI, Mizumaki H, Hosokawa K, Espinoza JL, Nakagawa N, Chonabayashi K, Yoshida Y, Katagiri T, Hosomichi K, Zaimoku Y, Imi T, Nguyen MAT, Fujii Y, Tajima A, Ogawa S, Takenaka K, Akashi K, Nakao S. Escape hematopoiesis by HLA-B5401-lacking hematopoietic stem progenitor cells in men with acquired aplastic anemia. Haematologica 2019; 104:e447-e450. [PMID: 30890597 DOI: 10.3324/haematol.2018.210856] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Morimoto J, Nishikawa Y, Kakimoto T, Furutani K, Kihara N, Matsumoto M, Tsuneyama K, Kozono Y, Kozono H, Hozumi K, Hosomichi K, Nishijima H, Matsumoto M. Aire Controls in Trans the Production of Medullary Thymic Epithelial Cells Expressing Ly-6C/Ly-6G. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:3244-3257. [PMID: 30389776 DOI: 10.4049/jimmunol.1800950] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/27/2018] [Indexed: 11/19/2022]
Abstract
Medullary thymic epithelial cells (mTECs), which express a wide range of tissue-restricted Ags (TRAs), contribute to the establishment of self-tolerance by eliminating autoreactive T cells and/or inducing regulatory T cells. Aire controls a diverse set of TRAs within Aire-expressing cells by employing various transcriptional pathways. As Aire has a profound effect on transcriptomes of mTECs, including TRAs not only at the single-cell but also the population level, we suspected that Aire (Aire+ mTECs) might control the cellular composition of the thymic microenvironment. In this study, we confirmed that this is indeed the case by identifying a novel mTEC subset expressing Ly-6 family protein whose production was defective in Aire-deficient thymi. Reaggregated thymic organ culture experiments demonstrated that Aire did not induce the expression of Ly-6C/Ly-6G molecules from mTECs as Aire-dependent TRAs in a cell-intrinsic manner. Instead, Aire+ mTECs functioned in trans to maintain Ly-6C/Ly-6G+ mTECs. Thus, Aire not only controls TRA expression transcriptionally within the cell but also controls the overall composition of mTECs in a cell-extrinsic manner, thereby regulating the transcriptome from mTECs on a global scale.
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Romero V, Nakaoka H, Hosomichi K, Inoue I. High Order Formation and Evolution of Hornerin in Primates. Genome Biol Evol 2018; 10:3167-3175. [PMID: 30256937 PMCID: PMC6280949 DOI: 10.1093/gbe/evy208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2018] [Indexed: 12/15/2022] Open
Abstract
Genomic duplication or loss can accelerate evolution because the number of repeats could affect molecular pathways and phenotypes. We have previously reported that the repeated region of filaggrin (FLG), a crucial component of the outer layers of mammalian skin, had high levels of nucleotide diversity with species-specific divergence and expansion and that it evolved under the birth-and-death model. We focused on hornerin (HRNR), a member of the same gene family that harbor similar tandem repeats as FLG, and examined the formation process of repeated regions and the evolutional model that best fit the HRNR repeated region in the crab-eating macaque (Macaca fascicularis), orangutan (Pongo abelii), gorilla (Gorilla gorilla), and chimpanzee (Pan troglodytes) and compared them with the human (Homo sapiens) sequence. Paar et al. (2011) and Takaishi et al. (2005) have different theories as to the formation of the repeated region of HRNR; both groups share the longest repeat length of 1,404 bp (quartic or longest unit), but they differed in the process. We identified the formation described by Paar et al. {[(“39 bp (primary) × 9” × 2 (secondary)) × 2 (tertiary)] × 5 (quartic)} to be conserved in all species except the crab-eating macaque. We detected high nucleotide diversities between the longest repeats, which fits the birth-and-death model. We concluded that the high order repeat formation of HRNR was conserved in primates except the crab-eating macaque. As previously identified in FLG, the longest repeats have high levels of nucleotide diversity, which could contribute to phenotypic differences between closely related species.
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Yamaguchi T, Hosomichi K, Takahashi M, Haga S, Nakawaki T, Hikita Y, Maki K, Tajima A. Orthognathic surgery induces genomewide changes longitudinally in DNA methylation in saliva. Oral Dis 2018; 25:508-514. [PMID: 30362655 DOI: 10.1111/odi.12998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 07/27/2018] [Accepted: 10/05/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Orthognathic surgery dramatically changes morphology of the maxillofacial deformity and improves the malocclusion morphologically and functionally. We investigated the influence of orthognathic surgery on genomewide DNA methylation in saliva. METHODS Saliva was obtained from nine patients undergoing orthognathic surgery and two healthy reference individuals before and 3 months after orthognathic surgery. Genomewide DNA methylation profiling of saliva (341,482 CpG dinucleotides) was conducted using Infinium HumanMethylation450 BeadChips. RESULTS Comparison between pre- and postsurgery saliva samples revealed significant changes in DNA methylation patterns at 2,381 CpG sites (p < 0.01) with suggestive significance. The differentially methylated probe sets were significantly associated with the cancer pathway (p = 2.8 × 10-7 ; a false discovery rate q-value = 3.7 × 10-4 ) and PI3K-Akt signalling pathway (p = 2.4 × 10-5 ; a false discovery rate q-value = 3.1 × 10-2 ). CONCLUSION Pathway enrichment analysis of genes with suggestive significance demonstrated that altered DNA methylation in saliva of patients undergoing orthognathic surgery, possibly as a response to surgical stress or bone injury. Further studies with a large sample size and long-term observation are needed to validate the phenomena identified in this study.
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Tada H, Kawashiri MA, Nomura A, Teramoto R, Hosomichi K, Nohara A, Inazu A, Mabuchi H, Tajima A, Yamagishi M. Oligogenic familial hypercholesterolemia, LDL cholesterol, and coronary artery disease. J Clin Lipidol 2018; 12:1436-1444. [PMID: 30241732 DOI: 10.1016/j.jacl.2018.08.006] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/09/2018] [Accepted: 08/15/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND The genetic background of severe familial hypercholesterolemia (FH) has yet to be determined. OBJECTIVE We tested if genetic variants associated with low-density lipoprotein (LDL)-altering autosomal recessive diseases influenced LDL cholesterol levels and the odds for coronary artery disease in patients with high LDL cholesterol. METHODS We recruited 500 individuals with elevated LDL cholesterol levels (≥180 mg/dL or ≥140 mg/dL for subjects <15 years). We sequenced the exons of 3 FH genes (LDLR, apolipoprotein B, and proprotein convertase subtilisin/kexin type 9) and 4 LDL-altering accessory genes (ABCG5, ABCG8, APOE, and LDL receptor adaptor protein 1). In addition, 4 single nucleotide polymorphisms associated with polygenic FH in East Asian subjects were genotyped. Oligogenic FH patients were defined as those who harbored damaging variants of both conventional FH genes and LDL-altering accessory genes. RESULTS We identified damaging variants of conventional FH genes in 248 participants (50%). We also detected damaging variants in accessory genes in 57 patients (11%) and identified oligogenic FH in 27 of these patients (5%). Polygenic score in the subjects without any FH mutations was significantly higher than those in any other groups. Compared with monogenic FH, oligogenic FH exhibited significantly higher LDL cholesterol (265 mg/dL, 95% confidence interval [CI] 216-312, and 210 mg/dL, 95% CI 189-243; P = .04). Oligogenic FH exhibited higher odds for coronary artery disease when compared with monogenic FH, although it did not reach statistical significance (odds ratio 1.41, 95% CI 0.68-2.21, P = .24). CONCLUSIONS Among patients with elevated LDL cholesterol, those with oligogenic FH had higher LDL cholesterol than monogenic FH.
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Takahashi M, Hosomichi K, Yamaguchi T, Nagahama R, Yoshida H, Marazita ML, Weinberg SM, Maki K, Tajima A. Exploration of genetic factors determining cleft side in a pair of monozygotic twins with mirror-image cleft lip and palate using whole-genome sequencing and comparison of craniofacial morphology. Arch Oral Biol 2018; 96:33-38. [PMID: 30172943 DOI: 10.1016/j.archoralbio.2018.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The aim of the present study is to explore genetic factors determining difference of cleft side using whole-genome sequencing and evaluation of craniofacial morphology using cephalometric analysis between Japanese monozygotic (MZ) twins with mirror-image cleft lip and palate (CLP). DESIGN We selected a Japanese MZ twin pair (MZ-A and MZ-B) affected with unilateral CLP who are discordant for cleft side (left/right) and conducted whole-genome sequencing to identify genetic factors determining cleft side. Moreover, we compared their craniofacial morphologies using cephalograms. RESULTS Whole-genome sequencing results suggested that no discordant DNA variants were found between MZ-A and MZ-B. The comparison of craniofacial morphology between the MZ twins revealed that MZ-B had maxillary deficiency and slightly more mandibular protrusion than MZ-A. CONCLUSIONS It is indicated that environmental factors might be a critical factor that influences the determination of difference of cleft side in orofacial clefts. In addition, we found some differences in craniofacial morphology between MZ-A and MZ-B. Our findings suggest that various environmental factors, such as epigenetics, might be a critical factor that influences the determination of difference of cleft side in CLP rather than inherited genetic factors.
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Takahashi M, Hosomichi K, Yamaguchi T, Nagahama R, Yoshida H, Maki K, Marazita ML, Weinberg SM, Tajima A. Whole-genome sequencing in a pair of monozygotic twins with discordant cleft lip and palate subtypes. Oral Dis 2018; 24:1303-1309. [PMID: 29873870 DOI: 10.1111/odi.12910] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 05/15/2018] [Accepted: 05/31/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Orofacial clefts (OFCs) are common and etiologically complex birth defects. This study explored potential genetic differences in a pair of Japanese monozygotic (MZ) twins with different forms of OFC using whole-genome sequencing. SUBJECTS AND METHODS One co-twin (MZ-1) presented with nonsyndromic bilateral cleft lip and palate; the other co-twin (MZ-2) had nonsyndromic bilateral cleft lip and unilateral left-sided cleft alveolus. Neither parent had an OFC. Craniofacial morphologic features and potential genetic differences were compared using standard cephalometry and whole-genome sequencing, respectively. RESULTS Morphologically, MZ-1 had a smaller vertical mandibular height, compared to MZ-2. However, no discordant genetic differences were detected. Moreover, both twins and their parents harbored rare candidate gene variants (GRHL3; TPM1) considered to be associated with OFCs. CONCLUSION The observed differences between MZ-1 and MZ-2 in craniofacial morphology assessed by cephalograms might be directly attributable to the effects of the OFC on growth and/or differences in surgical history, given the lack of any differences in genetic background. However, comparisons of discordant MZ twins should continue to identify novel candidates that might control OFC or that might partly explain the missing heritability for this common birth defect, in addition to understanding craniofacial growth and development.
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Watanabe H, Goto S, Mori H, Higashi K, Hosomichi K, Aizawa N, Takahashi N, Tsuchida M, Suzuki Y, Yamada T, Horii A, Inoue I, Kurokawa K, Narita I. Comprehensive microbiome analysis of tonsillar crypts in IgA nephropathy. Nephrol Dial Transplant 2018; 32:2072-2079. [PMID: 27683270 DOI: 10.1093/ndt/gfw343] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 08/10/2016] [Indexed: 12/29/2022] Open
Abstract
Background Immunoglobulin A nephropathy (IgAN) is the most prevalent primary chronic glomerular disease, in which the mucosal immune response elicited particularly in the tonsils or intestine has been estimated to be involved in the development of the disease. To explore the relationship between IgAN and bacterial flora in the tonsils, we conducted a comprehensive microbiome analysis. Methods We enrolled 48 IgAN patients, 21 recurrent tonsillitis (RT) patients without urine abnormalities and 30 children with tonsillar hyperplasia (TH) who had undergone tonsillectomy previously. Genomic DNA from tonsillar crypts of each patient was extracted, and V4 regions of the 16S ribosomal RNA gene were amplified and analysed using a high-throughput multiplexed sequencing approach. Differences in genus composition among the three study groups were statistically analysed by permutational multivariate analysis of variance and visualized by principal component analysis (PCA). Results Substantial diversity in bacterial composition was detected in each sample. Prevotella spp., Fusobacterium spp., Sphingomonas spp. and Treponema spp. were predominant in IgAN patients. The percentage of abundance of Prevotella spp., Haemophilus spp., Porphyromonas spp. and Treponema spp. in IgAN patients was significantly different from that in TH patients. However, there was no significant difference in the percentage of abundance of any bacterial genus between IgAN and RT patients. PCA did not distinguish IgAN from RT, although it discriminated TH. No significant differences in microbiome composition among the groups of IgAN patients according to clinicopathological parameters were observed. Conclusions Similar patterns of bacteria are present in tonsillar crypts of both IgAN and RT patients, suggesting that the host response to these bacteria might be important in the development of IgAN.
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Nishijima H, Kajimoto T, Matsuoka Y, Mouri Y, Morimoto J, Matsumoto M, Kawano H, Nishioka Y, Uehara H, Izumi K, Tsuneyama K, Okazaki IM, Okazaki T, Hosomichi K, Shiraki A, Shibutani M, Mitsumori K, Matsumoto M. Paradoxical development of polymyositis-like autoimmunity through augmented expression of autoimmune regulator (AIRE). J Autoimmun 2018; 86:75-92. [PMID: 28931462 DOI: 10.1016/j.jaut.2017.09.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/13/2017] [Accepted: 09/13/2017] [Indexed: 11/22/2022]
Abstract
Autoimmunity is prevented by the function of the autoimmune regulator [AIRE (Aire in mice)], which promotes the expression of a wide variety of tissue-restricted antigens (TRAs) from medullary thymic epithelial cells (mTECs) and from a subset of peripheral antigen-presenting cells (APCs). We examined the effect of additive expression of human AIRE (huAIRE) in a model of autoimmune diabetes in NOD mice. Unexpectedly, we observed that mice expressing augmented AIRE/Aire developed muscle-specific autoimmunity associated with incomplete maturation of mTECs together with impaired expression of Aire-dependent TRAs. This led to failure of deletion of autoreactive T cells together with dramatically reduced production of regulatory T cells in the thymus. In peripheral APCs, expression of costimulatory molecules was augmented. We suggest that levels of Aire expression need to be tightly controlled for maintenance of immunological tolerance. Our results also highlight the importance of coordinated action between central tolerance and peripheral tolerance under the common control of Aire.
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Kawano T, Hosomichi K, Inoue I, Shimono R, Onishi S, Nakame K, Kaji T, Matsufuji H, Ieiri S. Identification of a novel variant of the RET proto-oncogene in a novel family with Hirschsprung's disease. Pediatr Surg Int 2017; 33:1041-1046. [PMID: 28799054 DOI: 10.1007/s00383-017-4134-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/01/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE Hirschsprung's disease (HSCR) is a congenital disorder of the enteric nervous system characterized by the absence of ganglion cells in the Auerbach's and Meissner's plexuses. Although about 7% of cases are hereditary, the causal mutations have not been completely characterized. We encountered a novel family with inherited HSCR and screened them for causal mutations. METHODS A Japanese family of five female patients and six unaffected individuals was subjected to a whole-exome analysis with a next-generation sequencer. RESULTS After exome sequencing and the annotation of mutations, we identified co-segregated mutations with sequential filtering steps via a standard protocol. Eight mutations were identified: two on chromosome 10 and six on chromosome 11. We used pathogenicity prediction tools such as Genomic Evolutionary Rate Profiling, SIFT, and PolyPhen2 to predict the impact of mutations on the protein activity. S922Y, a novel mutation of RET, was identified as a likely causal mutation. In addition, a mutation of rs2435357T, known as enhancer of RET located in intron 1 of RET, was detected in this family. CONCLUSION The coexistence of RET mutations in both the exon (S922Y) and intron1 (rs2435357T) indicated a risk of HSCR in this family.
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Maruyama K, Aotsuka N, Kumano Y, Sato N, Kawashima N, Onda Y, Maruyama H, Katagiri T, Zaimoku Y, Nakagawa N, Hosomichi K, Ogawa S, Nakao S. Immune-Mediated Hematopoietic Failure after Allogeneic Hematopoietic Stem Cell Transplantation: A Common Cause of Late Graft Failure in Patients with Complete Donor Chimerism. Biol Blood Marrow Transplant 2017; 24:43-49. [PMID: 28860001 DOI: 10.1016/j.bbmt.2017.08.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/15/2017] [Indexed: 10/19/2022]
Abstract
Late graft failure (LGF) without evidence of residual recipient cells is a serious complication after allogeneic hematopoietic stem cell transplantation (allo-SCT) and often requires stem cell infusion from the same donor when the patient fails to respond to conventional therapies. We screened the peripheral blood (PB) of 14 patients who developed donor-type LGF at 2 to 132 months after allo-SCT for the presence of the markers for immune-mediated bone marrow (BM) failure. Increased glycosylphosphatidyl inositol-anchored protein-deficient (GPI-AP-) leukocytes, which accounted for .009% to 0.147% of the total granulocytes, were detected in 5 patients (severe aplastic anemia, n = 2; follicular lymphoma, n = 1; acute lymphoblastic leukemia, n = 1; myelodysplastic syndromes; n = 1) and 4.7% to 81.2% HLA-allele-lacking leukocytes (HLA-LLs) were detected in 2 patients (acute myelogenous leukemia, n = 1; and myelodysplastic syndromes, n = 1). Three of the 5 patients with increased GPI-AP- leukocytes were treated with antithymocyte globulin (ATG), and 2 patients achieved transfusion independence. These results suggest that immune mechanisms that are similar to acquired aplastic anemia underlie condition of approximately one-half of the patients with donor-type LGF, and that in patients with increased GPI-AP- cells, donor-derived hematopoiesis may be restored by ATG therapy alone without donor stem cell infusion.
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Higashino T, Takada T, Nakaoka H, Toyoda Y, Stiburkova B, Miyata H, Ikebuchi Y, Nakashima H, Shimizu S, Kawaguchi M, Sakiyama M, Nakayama A, Akashi A, Tanahashi Y, Kawamura Y, Nakamura T, Wakai K, Okada R, Yamamoto K, Hosomichi K, Hosoya T, Ichida K, Ooyama H, Suzuki H, Inoue I, Merriman TR, Shinomiya N, Matsuo H. Multiple common and rare variants of ABCG2 cause gout. RMD Open 2017; 3:e000464. [PMID: 29225919 PMCID: PMC5706492 DOI: 10.1136/rmdopen-2017-000464] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/22/2017] [Accepted: 07/12/2017] [Indexed: 12/15/2022] Open
Abstract
Objective Previous studies have suggested an association between gout susceptibility and common dysfunctional variants in ATP-binding cassette transporter subfamily G member 2/breast cancer resistance protein (ABCG2/BCRP), including rs72552713 (Q126X) and rs2231142 (Q141K). However, the association of rare ABCG2 variants with gout is unknown. Therefore, we investigated the effects of rare ABCG2 variants on gout susceptibility in this study. Methods We sequenced the exons of ABCG2 in 480 patients with gout and 480 healthy controls (Japanese males). We also performed functional analyses of non-synonymous variants of ABCG2 and analysed the correlation between urate transport function and scores from the protein prediction algorithms (Sorting Intolerant from Tolerant (SIFT) and Polymorphism Phenotyping v2 (PolyPhen-2)). Stratified association analyses and multivariate logistic regression analysis were performed to evaluate the effects of rare and common ABCG2 variants on gout susceptibility. Results We identified 3 common and 19 rare non-synonymous variants of ABCG2. SIFT scores were significantly correlated with the urate transport function, although some ABCG2 variants showed inconsistent scores. When the effects of common variants were removed by stratified association analysis, the rare variants of ABCG2 were associated with a significantly increased risk of gout (OR=3.2, p=6.4×10−3). Multivariate logistic regression analysis revealed that the size effect of these rare ABCG2 variants (OR=2.7, p=3.0×10−3) was similar to that of the common variants, Q126X (OR=3.4, p=3.2×10−6) and Q141K (OR=2.3, p=2.7×10−16). Conclusions This study revealed that multiple common and rare variants of ABCG2 are independently associated with gout. These results could support both the ‘Common Disease, Common Variant’ and ‘Common Disease, Multiple Rare Variant’ hypotheses for the association between ABCG2 and gout susceptibility.
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Akatsuka H, Kuga S, Masuhara K, Davaadorj O, Okada C, Iida Y, Okada Y, Fukunishi N, Suzuki T, Hosomichi K, Ohtsuka M, Tanaka M, Inoue I, Kimura M, Sato T. AMBRA1 is involved in T cell receptor-mediated metabolic reprogramming through an ATG7-independent pathway. Biochem Biophys Res Commun 2017; 491:1098-1104. [PMID: 28789945 DOI: 10.1016/j.bbrc.2017.08.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/04/2017] [Indexed: 11/30/2022]
Abstract
Metabolic reprogramming contributes to dynamic alteration of cell functions and characteristics. In T cells, TCR-mediated signaling evokes metabolic reprogramming and autophagy. AMBRA1 is known to serve in the facilitation of autophagy and quality control of mitochondria, but the role of AMBRA1 in T cell metabolic alteration is unknown. Here, we show that AMBRA1, but not ATG7, plays a role in TCR-mediated control of glycolytic factors and mitochondrial mass, while both AMBRA1 and ATG7 are required for autolysosome formation. Our results suggested that AMBRA1 is a core factor that controls both autophagy and metabolic regulation.
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Tada H, Nomura A, Teramoto R, Hosomichi K, Kawashiri M, Nohara A, Mabuchi H, Tajima A, Yamagishi M. 3102Comprehensive genotyping and phenotyping in patients with severe hypercholesterolemia. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shinmyo Y, Terashita Y, Dinh Duong TA, Horiike T, Kawasumi M, Hosomichi K, Tajima A, Kawasaki H. Folding of the Cerebral Cortex Requires Cdk5 in Upper-Layer Neurons in Gyrencephalic Mammals. Cell Rep 2017; 20:2131-2143. [DOI: 10.1016/j.celrep.2017.08.024] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 06/08/2017] [Accepted: 08/03/2017] [Indexed: 02/06/2023] Open
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