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Yamaguchi N, Sakaguchi T, Isomoto H, Inamine T, Tsukamoto R, Fukuda D, Ohnita K, Kanda T, Matsushima K, Hirayama T, Yashima K, Tsukamoto K. Polymorphism in autophagy-related genes LRP1 and CAPZA1 may promote gastric mucosal atrophy. Genes Environ 2023; 45:18. [PMID: 37198664 DOI: 10.1186/s41021-023-00274-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/27/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Helicobacter pylori secretes cytotoxin-associated gene A (CagA) into the gastric epithelium, causing gastric mucosal atrophy (GMA) and gastric cancer. In contrast, host cells degrade CagA via autophagy. However, the association between polymorphisms in autophagy-related genes and GMA must be fully elucidated. RESULTS We evaluated the association between single nucleotide polymorphisms (SNPs) in autophagy-related genes (low-density lipoprotein receptor-related protein 1, LRP1; capping actin protein of muscle Z-line alpha subunit 1, CAPAZ1; and lysosomal-associated membrane protein 1, LAMP1) and GMA in 200 H. pylori-positive individuals. The frequency of the T/T genotype at rs1800137 in LRP1 was significantly lower in the GMA group than in the non-GMA group (p = 0.018, odds ratio [OR] = 0.188). The frequencies of the G/A or A/A genotype at rs4423118 and T/A or A/A genotype at rs58618380 of CAPAZ1 in the GMA group were significantly higher than those in the non-GMA group (p = 0.029 and p = 0.027, respectively). Multivariate analysis revealed that C/C or C/T genotype at rs1800137, T/A or A/A genotype at rs58618380, and age were independent risk factors for GMA (p = 0.038, p = 0.023, and p = 0.006, respectively). Furthermore, individuals with the rs1800137 C/C or C/T genotype of LRP1 had a 5.3-fold higher susceptibility to GMA. These genetic tests may provide future directions for precision medicine for individuals more likely to develop GMA. CONCLUSION LRP1 and CAPZA1 polymorphisms may be associated with the development of GMA.
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Affiliation(s)
- Naoyuki Yamaguchi
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Takuki Sakaguchi
- Department of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishi-Cho, Yonago, 683-8504, Japan.
| | - Hajime Isomoto
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
- Department of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishi-Cho, Yonago, 683-8504, Japan.
| | - Tatsuo Inamine
- Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Ryoya Tsukamoto
- Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Daisuke Fukuda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
- Department of Surgical Oncology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
- Fukuda Yutaka Clinic, 3-5 Hamaguchi-machi, Nagasaki, 852-8107, Japan
| | - Ken Ohnita
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
- Shunkaikai Inoue Hospital, 6-12 Takara-machi, Nagasaki, 850-0045, Japan
| | - Tsutomu Kanda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
- Department of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishi-Cho, Yonago, 683-8504, Japan
| | - Kayoko Matsushima
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tatsuro Hirayama
- Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Kazuo Yashima
- Department of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishi-Cho, Yonago, 683-8504, Japan
| | - Kazuhiro Tsukamoto
- Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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Tibori K, Orosz G, Zámbó V, Szelényi P, Sarnyai F, Tamási V, Rónai Z, Mátyási J, Tóth B, Csala M, Kereszturi É. Molecular Mechanisms Underlying the Elevated Expression of a Potentially Type 2 Diabetes Mellitus Associated SCD1 Variant. Int J Mol Sci 2022; 23:ijms23116221. [PMID: 35682900 PMCID: PMC9181825 DOI: 10.3390/ijms23116221] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 12/14/2022] Open
Abstract
Disturbances in lipid metabolism related to excessive food intake and sedentary lifestyle are among major risk of various metabolic disorders. Stearoyl-CoA desaturase-1 (SCD1) has an essential role in these diseases, as it catalyzes the synthesis of unsaturated fatty acids, both supplying for fat storage and contributing to cellular defense against saturated fatty acid toxicity. Recent studies show that increased activity or over-expression of SCD1 is one of the contributing factors for type 2 diabetes mellitus (T2DM). We aimed to investigate the impact of the common missense rs2234970 (M224L) polymorphism on SCD1 function in transfected cells. We found a higher expression of the minor Leu224 variant, which can be attributed to a combination of mRNA and protein stabilization. The latter was further enhanced by various fatty acids. The increased level of Leu224 variant resulted in an elevated unsaturated: saturated fatty acid ratio, due to higher oleate and palmitoleate contents. Accumulation of Leu224 variant was found in a T2DM patient group, however, the difference was statistically not significant. In conclusion, the minor variant of rs2234970 polymorphism might contribute to the development of obesity-related metabolic disorders, including T2DM, through an increased intracellular level of SCD1.
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Affiliation(s)
- Kinga Tibori
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Gabriella Orosz
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Veronika Zámbó
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Péter Szelényi
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Farkas Sarnyai
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Viola Tamási
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Zsolt Rónai
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Judit Mátyási
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary; (J.M.); (B.T.)
| | - Blanka Tóth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary; (J.M.); (B.T.)
| | - Miklós Csala
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
- Correspondence: (M.C.); (É.K.)
| | - Éva Kereszturi
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
- Correspondence: (M.C.); (É.K.)
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Takafuji S, Mori T, Nishimura N, Yamamoto N, Uemura S, Nozu K, Terui K, Toki T, Ito E, Muramatsu H, Takahashi Y, Matsuo M, Yamamura T, Iijima K. Usefulness of functional splicing analysis to confirm precise disease pathogenesis in Diamond-Blackfan anemia caused by intronic variants in RPS19. Pediatr Hematol Oncol 2021; 38:515-527. [PMID: 33622161 DOI: 10.1080/08880018.2021.1887984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Diamond-Blackfan anemia (DBA) is mainly caused by pathogenic variants in ribosomal proteins and 22 responsible genes have been identified to date. The most common causative gene of DBA is RPS19 [NM_001022.4]. Nearly 180 RPS19 variants have been reported, including three deep intronic variants outside the splicing consensus sequence (c.72-92A > G, c.356 + 18G > C, and c.411 + 6G > C). We also identified one case with a c.412-3C > G intronic variant. Without conducting transcript analysis, the pathogenicity of these variants is unknown. However, it is difficult to assess transcripts because of their fragility. In such cases, in vitro functional splicing assays can be used to assess pathogenicity. Here, we report functional splicing analysis results of four RPS19 deep intronic variants identified in our case and in previously reported cases. One splicing consensus variant (c.411 + 1G > A) was also examined as a positive control. Aberrant splicing with a 2-bp insertion between exons 5 and 6 was identified in the patient samples and minigene assay results also identified exon 6 skipping in our case. The exon 6 skipping transcript was confirmed by further evaluation using quantitative RT-PCR. Additionally, minigene assay analysis of three reported deep intronic variants revealed that none of them showed aberrant splicing and that these variants were not considered to be pathogenic. In conclusion, the minigene assay is a useful method for functional splicing analysis of inherited disease.
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Affiliation(s)
- Satoru Takafuji
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Mori
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Noriyuki Nishimura
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Nobuyuki Yamamoto
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Suguru Uemura
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kandai Nozu
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kiminori Terui
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tsutomu Toki
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Etsuro Ito
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masafumi Matsuo
- Locomotion Biology Research Center, Kobe Gakuin University, Kobe, Japan
| | - Tomohiko Yamamura
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazumoto Iijima
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
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Su M, Jia A, He Y, Song Y. Associations of the Polymorphisms in ADIPOQ with Circulating Levels of Adiponectin and Lipids: A Meta-Analysis. Horm Metab Res 2021; 53:541-561. [PMID: 34384110 DOI: 10.1055/a-1543-6362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The relationships between the rs266729, rs1501299, and rs2241766 polymorphisms in adiponectin gene (ADIPOQ) and circulating levels of adiponectin and lipids remain to be clarified. Databases including PubMed and Embase were searched for eligible studies. The random-effects model was used, and standardized mean difference (SMD) with 95% confidence interval (CI) was calculated to estimate the differences in circulating levels of adiponectin and lipids between the subjects with different genotypes. A total of 12 810, 17 319, and 21 361 subjects were identified in the analyses for the rs266729, rs1501299, and rs2241766 polymorphisms, respectively. G allele carriers of the rs266729 polymorphism had lower levels of adiponectin (SMD=-0.28, 95% CI=-0.43 to-0.12) and high-density lipoprotein cholesterol (HDL-C) (SMD=-0.10, 95% CI=-0.17 to-0.02) than CC homozygotes; T allele carriers of the rs1501299 polymorphism had higher levels of adiponectin (SMD=0.21, 95% CI=0.05 to 0.36) and HDL-C (SMD=0.09, 95% CI=0.04 to 0.15) and lower levels of triglycerides (SMD=-0.06, 95% CI=-0.12 to-0.01) than GG homozygotes; G allele carriers of the rs2241766 polymorphism had lower levels of adiponectin (SMD=-0.18, 95% CI=-0.31 to-0.05) and HDL-C (SMD=-0.12, 95% CI=-0.20 to-0.04) than TT homozygotes. This meta-analysis suggests that the rs266729, rs1501299, and rs2241766 polymorphisms of ADIPOQ are significantly associated with circulating levels of adiponectin and lipids, which may partly explain the associations between these polymorphisms and coronary artery disease.
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Affiliation(s)
- Mi Su
- Central Laboratory and the Medical Key Laboratory of Clinical Genetics of Sichuan Province, Affiliated Hospital of Chengdu University, Chengdu, Sichuan, P. R. China
| | - Aimei Jia
- Department of General Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, P. R. China
| | - Yilan He
- School of Preclinical Medicine, North Sichuan Medical College, Nanchong, Sichuan, P. R. China
| | - Yongyan Song
- Central Laboratory and the Medical Key Laboratory of Clinical Genetics of Sichuan Province, Affiliated Hospital of Chengdu University, Chengdu, Sichuan, P. R. China
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LRP1 and APOA1 Polymorphisms: Impact on Warfarin International Normalized Ratio-Related Phenotypes. J Cardiovasc Pharmacol 2020; 76:71-76. [PMID: 32282500 DOI: 10.1097/fjc.0000000000000834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Warfarin international normalized ratio (INR)-related phenotypes such as the percentage of INR time in the therapeutic range (PTTR) and INR variability are associated with warfarin adverse reactions. However, INR-related phenotypes greatly vary among patients, and the underlying mechanism remains unclear. As a key cofactor for coagulation proteins, vitamin K can affect warfarin INR values. The aim of this study was to address the influence of vitamin K-related single-nucleotide polymorphisms (SNPs) on warfarin INR-related phenotypes. A total of 262 patients who were new recipients of warfarin therapy and followed up for 3 months were enrolled. Twenty-nine SNPs were genotyped by matrix-assisted laser desorption/ionization time-of-flight mass array. Sixteen warfarin INR-related phenotypes were observed. After association analysis, 11 SNPs were significantly associated with at least one INR-related phenotype, and 6 SNPs were associated with at least 2 INR-related phenotypes (P < 0.05). In these SNPs, rs1800139, rs1800154, rs1800141, and rs486020 were the most representative. rs1800139, rs1800154, and rs1800141 locate in LRP1 and were found to be correlated with 1-month and 2-month INR variability (P < 0.05). Besides, the APOA1 rs486020 was significantly associated with the first month PTTR (P = 0.009), and patients with C-allele had higher PTTR than those with G-alleles almost during the entire monitoring period. In conclusion, the study revealed that the polymorphisms of LRP1 and APOA1 gene may play important roles in the variation of warfarin INR-related phenotypes. Our results provide new information for improving warfarin anticoagulation management.
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Yi X, Yang Y, Wu P, Xu X, Li W. Alternative splicing events during adipogenesis from hMSCs. J Cell Physiol 2019; 235:304-316. [PMID: 31206189 DOI: 10.1002/jcp.28970] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 12/22/2022]
Abstract
Adipogenesis, the developmental process of progenitor-cell differentiating into adipocytes, leads to fat metabolic disorders. Alternative splicing (AS), a ubiquitous regulatory mechanism of gene expression, allows the generation of more than one unique messenger RNA (mRNA) species from a single gene. Till now, alternative splicing events during adipogenesis from human mesenchymal stem cells (hMSCs) are not yet fully elucidated. We performed RNA-Seq coupled with bioinformatics analysis to identify the differentially expressed AS genes and events during adipogenesis from hMSCs. A global survey separately identified 1262, 1181, 1167, and 1227 ASE involved in the most common types of AS including cassette exon, alt3, and alt5, especially with cassette exon the most prevalent, at 7, 14, 21, and 28 days during adipogenesis. Interestingly, 122 differentially expressed ASE referred to 118 genes, and the three genes including ACTN1 (alt3 and cassette), LRP1 (alt3 and alt5), and LTBP4 (cassette, cassette_multi, and unknown), appeared in multiple AS types of ASE during adipogenesis. Except for all the identified ASE of LRP1 occurred in the extracellular topological domain, alt3 (84) in transmembrane domain significantly differentially expressed was the potential key event during adipogenesis. Overall, we have, for the first time, conducted the global transcriptional profiling during adipogenesis of hMSCs to identify differentially expressed ASE and ASE-related genes. This finding would provide extensive ASE as the regulator of adipogenesis and the potential targets for future molecular research into adipogenesis-related metabolic disorders.
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Affiliation(s)
- Xia Yi
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang, China
| | - Yunzhong Yang
- Beijing Yuanchuangzhilian Techonlogy Development Co., Ltd, Beijing, China
| | - Ping Wu
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang, China
| | - Xiaoyuan Xu
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang, China
| | - Weidong Li
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang, China
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Lu Z, Luo Z, Jia A, Yu L, Muhammad I, Zeng W, Song Y. Associations of the ABCA1 gene polymorphisms with plasma lipid levels: A meta-analysis. Medicine (Baltimore) 2018; 97:e13521. [PMID: 30558007 PMCID: PMC6320104 DOI: 10.1097/md.0000000000013521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Studies on the associations of the adenosine triphosphate-binding cassette transporter A1 gene (ABCA1) rs2230806, rs2230808, and rs2066714 polymorphisms with plasma lipid levels have reported apparently conflicting findings. This meta-analysis aimed to clarify the relationships between the 3 polymorphisms and fasting lipid levels. METHODS A comprehensive search of the literature was carried out by using the databases including Medline, Google Scholar, Web of Science, Embase, Cochrane Library, CNKI, Wanfang, and VIP. The studies that presented mean lipids and standard deviations or standard errors according to the rs2230806, rs2230808, and/or rs2066714 genotypes were examined and included. The random effects model was used. Standardized mean difference and 95% confidence interval were used to assess the differences in lipid levels between the genotypes. Heterogeneity among studies was tested by Cochran's χ-based Q-statistic, and Galbraith plots were used to detect the potential sources of heterogeneity. Publication bias was assessed by Begg's rank correlation test as well as funnel plots. RESULTS Sixty-two studies (48,452 subjects), 12 studies (9853 subjects) and 14 studies (10,727 subjects) were identified for the rs2230806, rs2230808, and rs2066714 polymorphisms, respectively. A dominant model was used for all the polymorphisms in this meta-analysis. The A allele carriers of the rs2230806 polymorphism had higher levels of high-density lipoprotein cholesterol (HDL-C) (P <.001), and lower levels of low-density lipoprotein cholesterol (LDL-C) (P =.03) and triglycerides (TG) (P <.01) than the non-carriers. The A allele carriers of the rs2230808 polymorphism had higher levels of total cholesterol (TC) (P <.001) than the non-carriers. The G allele carriers of the rs2066714 polymorphism had higher levels of TC (P <.01) and HDL-C (P = .02) than the non-carriers. CONCLUSION The ABCA1 rs2230806, rs2230808, and rs2066714 polymorphisms are significantly associated with plasma lipid levels in the present meta-analysis.
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Affiliation(s)
- Zhan Lu
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College
| | - Zhi Luo
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College
| | - Aimei Jia
- School of Preclinical Medicine, and Nanchong Key Laboratory of Metabolic Drugs and Biological Products
| | - Liuqin Yu
- Institute of Materia Medica, School of Pharmacy, North Sichuan Medical College, Nanchong, People's Republic of China
| | - Irfan Muhammad
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College
| | - Wei Zeng
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College
| | - Yongyan Song
- School of Preclinical Medicine, and Nanchong Key Laboratory of Metabolic Drugs and Biological Products
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