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Namiki T, Takemoto M, Hayashi A, Yamagata H, Ishikawa T, Yokote K, Li SY, Kubota M, Zhang BS, Yoshida Y, Matsutani T, Mine S, Machida T, Kobayashi Y, Terada J, Naito A, Tatsumi K, Takizawa H, Nakamura R, Kuroda H, Iwadate Y, Hiwasa T. Serum anti-PCK1 antibody levels are a prognostic factor for patients with diabetes mellitus. BMC Endocr Disord 2023; 23:239. [PMID: 37904164 PMCID: PMC10614393 DOI: 10.1186/s12902-023-01491-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 10/16/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Autoantibodies develop in autoimmune diseases, cancer, diabetes mellitus (DM), and atherosclerosis-related diseases. However, autoantibody biomarkers have not been successfully examined for diagnosis and therapy. METHODS Serological identification of antigens through recombinant cDNA expression cloning (SEREX) was used for primary screening of antigens. The cDNA product was expressed in bacteria and purified. Amplified luminescent proximity homogeneous assay-linked immunosorbent assay (AlphaLISA) was used to evaluate antibody levels in serum samples. RESULTS Phosphoenolpyruvate carboxykinase 1 (PCK1) was recognized as an antigen by serum IgG antibodies in the sera of patients with atherosclerosis. AlphaLISA showed significantly higher serum antibody levels against recombinant PCK1 protein in patients with DM and cardiovascular disease than in healthy donors, but not in those with acute ischemic stroke, transient ischemic attack, or obstructive sleep apnea syndrome. The area under the receiver operating characteristic curve for anti-PCK1 antibodies was 0.7024 for DM. The serum anti-PCK1 antibody levels were associated with age, platelet count, and blood pressure. Anti-PCK1-antibody-positive patients showed significantly lower overall survival than the negative patients. CONCLUSIONS Serum anti-PCK1 antibody levels were found to be associated with DM. The anti-PCK1 antibody marker is useful for predicting the overall survival of patients with DM.
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Grants
- Grant Numbers 20K17953, 19K09451, 17K19810, 19K08596, 20K07810, 16K10520, 20K07810, 21K07395 and 15K10117. This work was supported, in part, by research grants from the Japan Science and Technology Agency (JST) and JSPS KAKENHI
- Grant Numbers 20K17953, 19K09451, 17K19810, 19K08596, 20K07810, 16K10520, 20K07810, 21K07395 and 15K10117. This work was supported, in part, by research grants from the Japan Science and Technology Agency (JST) and JSPS KAKENHI
- Grant Numbers 20K17953, 19K09451, 17K19810, 19K08596, 20K07810, 16K10520, 20K07810, 21K07395 and 15K10117. This work was supported, in part, by research grants from the Japan Science and Technology Agency (JST) and JSPS KAKENHI
- Grant Numbers 20K17953, 19K09451, 17K19810, 19K08596, 20K07810, 16K10520, 20K07810, 21K07395 and 15K10117. This work was supported, in part, by research grants from the Japan Science and Technology Agency (JST) and JSPS KAKENHI
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Affiliation(s)
- Toshiki Namiki
- Department of Diabetes, Metabolism and Endocrinology, School of Medicine, International University of Health and Welfare, Narita Hospital, 852 Hatakeda, Narita City, Chiba, 286-8520, Japan
| | - Minoru Takemoto
- Department of Diabetes, Metabolism and Endocrinology, School of Medicine, International University of Health and Welfare, Narita Hospital, 852 Hatakeda, Narita City, Chiba, 286-8520, Japan.
| | - Aiko Hayashi
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Hiroki Yamagata
- Department of Diabetes, Metabolism and Endocrinology, School of Medicine, International University of Health and Welfare, Narita Hospital, 852 Hatakeda, Narita City, Chiba, 286-8520, Japan
| | - Takahiro Ishikawa
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Shu-Yang Li
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Masaaki Kubota
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Bo-Shi Zhang
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Yoichi Yoshida
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Tomoo Matsutani
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Seiichiro Mine
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
- Department of Neurological Surgery, Chiba Prefectural Sawara Hospital, Chiba, 287-0003, Japan
- Department of Neurological Surgery, Chiba Cerebral and Cardiovascular Center, Chiba, 290-0512, Japan
| | - Toshio Machida
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
- Department of Neurological Surgery, Chiba Cerebral and Cardiovascular Center, Chiba, 290-0512, Japan
- Department of Neurosurgery, Eastern Chiba Medical Center, Chiba, 283-8686, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Akira Naito
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Hirotaka Takizawa
- Port Square Kashiwado Clinic, Kashiwado Memorial Foundation, Chiba, 260-0025, Japan
| | - Rika Nakamura
- Medical Project Division, Research Development Center, Fujikura Kasei Co, Saitama, 340-0203, Japan
| | - Hideyuki Kuroda
- Medical Project Division, Research Development Center, Fujikura Kasei Co, Saitama, 340-0203, Japan
| | - Yasuo Iwadate
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Takaki Hiwasa
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
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Relationships of SLC2A4, RBP4, PCK1, and PI3K Gene Polymorphisms with Gestational Diabetes Mellitus in a Chinese Population. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7398063. [PMID: 30805369 PMCID: PMC6363241 DOI: 10.1155/2019/7398063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/02/2019] [Indexed: 01/06/2023]
Abstract
Background Solute carrier family 2 member 4- (SLC2A4-) retinol binding protein-4- (RBP4-) phosphoenolpyruvate carboxykinase 1 (PCK1)/phosphoinositide 3-kinase (PI3K) is an adipocyte derived “signalling pathway” that may contribute to the pathogenesis of type 2 diabetes mellitus (T2DM). We explored whether single nucleotide polymorphisms (SNPs) of these “signalling pathway” genes are associated with gestational diabetes mellitus (GDM). Methods Case-control studies were conducted to compare GDM and control groups. A total of 334 cases and 367 controls were recruited. Seventeen candidate SNPs of the pathway were selected. Chi-square tests, logistic regression, and linear regression were used to estimate the relationships of SNPs with GDM risk and oral glucose tolerance test (OGTT), fasting insulin, and homeostasis model assessment of insulin resistance (HOMA-IR) levels. Model-based multifactor dimensionality reduction was used to estimate the adjusted interactions between genes. Regression and interaction analyses were adjusted by maternal age, prepregnancy BMI, and weekly BMI growth. The Bonferroni correction was applied for multiple comparisons. Results RBP4 rs7091052 was significantly associated with GDM risk. SLC2A4 rs5435, RBP4 rs7091052, PCK1 rs1042531 and rs2236745, and PIK3R1 (coding gene of the PI3K P85 subunit) rs34309 were associated with OGTT, fasting insulin, and HOMA-IR levels in the linear regression analysis. The gene-gene interaction analysis showed that, compared with pregnant women with other genotype combinations, women with SLC2A4 rs5435 (CC/CT), RBP4 rs7091052 (CC), PCK1 rs1042531 (TT/TG) and rs2236745 (TT), and PIK3R1 rs34309 (AA) had lower GDM risk. Conclusion SLC2A4, RBP4, PCK1, and PIK3R1 genes may be involved in the pathogenesis of GDM.
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Association of PCK1 with Body Mass Index and Other Metabolic Features in Patients With Psychotropic Treatments. J Clin Psychopharmacol 2015; 35:544-52. [PMID: 26280835 DOI: 10.1097/jcp.0000000000000388] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Weight gain is a major health problem among psychiatric populations. It implicates several receptors and hormones involved in energy balance and metabolism. Phosphoenolpyruvate carboxykinase 1 is a rate-controlling enzyme involved in gluconeogenesis, glyceroneogenesis and cataplerosis and has been related to obesity and diabetes phenotypes in animals and humans. The aim of this study was to investigate the association of phosphoenolpyruvate carboxykinase 1 polymorphisms with metabolic traits in psychiatric patients treated with psychotropic drugs inducing weight gain and in general population samples. One polymorphism (rs11552145G > A) significantly associated with body mass index in the psychiatric discovery sample (n = 478) was replicated in 2 other psychiatric samples (n1 = 168, n2 = 188), with AA-genotype carriers having lower body mass index as compared to G-allele carriers. Stronger associations were found among women younger than 45 years carrying AA-genotype as compared to G-allele carriers (-2.25 kg/m, n = 151, P = 0.009) and in the discovery sample (-2.20 kg/m, n = 423, P = 0.0004). In the discovery sample for which metabolic parameters were available, AA-genotype showed lower waist circumference (-6.86 cm, P = 0.008) and triglycerides levels (-5.58 mg/100 mL, P < 0.002) when compared to G-allele carriers. Finally, waist-to-hip ratio was associated with rs6070157 (proxy of rs11552145, r = 0.99) in a population-based sample (N = 123,865, P = 0.022). Our results suggest an association of rs11552145G > A polymorphism with metabolic-related traits, especially in psychiatric populations and in women younger than 45 years.
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Anuradha CV. Phytochemicals targeting genes relevant for type 2 diabetes. Can J Physiol Pharmacol 2013; 91:397-411. [PMID: 23745945 DOI: 10.1139/cjpp-2012-0350] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Nutrigenomic approaches based on ethnopharmacology and phytotherapy concepts have revealed that type 2 diabetes mellitus (T2DM) may be susceptible to dietary intervention. Interaction between bioactive food components and the genome may influence cell processes and modulate the onset and progression of the disease. T2DM, characterized by insulin resistance and beta cell dysfunction, is one of the leading causes of death and disability. Despite the great advances that have been made in the understanding and management of this complex, multifactorial disease, T2DM has become a worldwide epidemic in the 21st century. Population and family studies have revealed a strong genetic component of T2DM, and a number of candidate genes have been identified in humans. Variations in the gene sequences such as single nucleotide polymorphisms, explain the individual differences in traits like disease susceptibility and response to treatment. A clear understanding of how nutrients affect the expression of genes should facilitate the development of individualized intervention and, eventually, treatment strategies for T2DM. Review of the literature identified many phytochemicals/extracts from traditional medicinal plants that can target diabetogenic genes. This review focuses on the genetic aspects of T2DM, nutrient modification of genes relevant for diabetes, and future prospects of nutritional therapy of T2DM.
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Affiliation(s)
- Carani Venkatraman Anuradha
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India.
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Rees SD, Britten AC, Bellary S, O'Hare JP, Kumar S, Barnett AH, Kelly MA. The promoter polymorphism -232C/G of the PCK1 gene is associated with type 2 diabetes in a UK-resident South Asian population. BMC MEDICAL GENETICS 2009; 10:83. [PMID: 19725958 PMCID: PMC2749022 DOI: 10.1186/1471-2350-10-83] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Accepted: 09/02/2009] [Indexed: 12/26/2022]
Abstract
Background The PCK1 gene, encoding cytosolic phosphoenolpyruvate carboxykinase (PEPCK-C), has previously been implicated as a candidate gene for type 2 diabetes (T2D) susceptibility. Rodent models demonstrate that over-expression of Pck1 can result in T2D development and a single nucleotide polymorphism (SNP) in the promoter region of human PCK1 (-232C/G) has exhibited significant association with the disease in several cohorts. Within the UK-resident South Asian population, T2D is 4 to 6 times more common than in indigenous white Caucasians. Despite this, few studies have reported on the genetic susceptibility to T2D in this ethnic group and none of these has investigated the possible effect of PCK1 variants. We therefore aimed to investigate the association between common variants of the PCK1 gene and T2D in a UK-resident South Asian population of Punjabi ancestry, originating predominantly from the Mirpur area of Azad Kashmir, Pakistan. Methods We used TaqMan assays to genotype five tagSNPs covering the PCK1 gene, including the -232C/G variant, in 903 subjects with T2D and 471 normoglycaemic controls. Results Of the variants studied, only the minor allele (G) of the -232C/G SNP demonstrated a significant association with T2D, displaying an OR of 1.21 (95% CI: 1.03 - 1.42, p = 0.019). Conclusion This study is the first to investigate the association between variants of the PCK1 gene and T2D in South Asians. Our results suggest that the -232C/G promoter polymorphism confers susceptibility to T2D in this ethnic group. Trial Registration UKADS Trial Registration: ISRCTN38297969
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Affiliation(s)
- Simon D Rees
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
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Elbers CC, Onland-Moret NC, Franke L, Niehoff AG, van der Schouw YT, Wijmenga C. A strategy to search for common obesity and type 2 diabetes genes. Trends Endocrinol Metab 2007; 18:19-26. [PMID: 17126559 DOI: 10.1016/j.tem.2006.11.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 11/01/2006] [Accepted: 11/14/2006] [Indexed: 12/24/2022]
Abstract
Worldwide, the incidence of type 2 diabetes is rising rapidly, mainly because of the increase in the incidence of obesity, which is an important risk factor for this condition. Both obesity and type 2 diabetes are complex genetic traits but they also share some nongenetic risk factors. Hence, it is tempting to speculate that the susceptibility to type 2 diabetes and obesity might also partly be due to shared genes. By comparing all of the published genome scans for type 2 diabetes and obesity, five overlapping chromosomal regions for both diseases (encompassing 612 candidate genes) have been identified. By analysing these five susceptibility loci for type 2 diabetes and obesity, using six freely available bioinformatics tools for disease gene identification, 27 functional candidate genes have been pinpointed that are involved in eating behaviour, metabolism and inflammation. These genes might reveal a molecular link between the two disorders.
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Affiliation(s)
- Clara C Elbers
- Complex Genetics Section, Department of Biomedical Genetics, University Medical Centre Utrecht, PO Box 85060, 3508 AB Utrecht, the Netherlands
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