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Abdelhaleem IA, Brakat AM, Adayel HM, Asla MM, Rizk MA, Aboalfetoh AY. The effects of resveratrol on glycemic control and cardiometabolic parameters in patients with T2DM: A systematic review and meta-analysis. Med Clin (Barc) 2021; 158:576-585. [PMID: 34666902 DOI: 10.1016/j.medcli.2021.06.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/24/2021] [Accepted: 06/30/2021] [Indexed: 01/12/2023]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a progressive meta-inflammatory disorder, which induce micro and macrovascular complications. Resveratrol is a nutraceutical known to have antioxidant and anti-inflammatory properties. It improves insulin resistance; however, no clear evidence regarding its effects in patients with T2DM. OBJECTIVES We aimed to evaluate the efficacy and the safety of oral resveratrol supplementation in type 2 diabetic patients concerning dose and duration. METHODS We searched PubMed, Cochrane Library, Scopus, WOS, Wiley, and Google Scholar for RCTs evaluating the efficacy and safety of resveratrol on patients with T2DM. We screened the studies for the eligibility criteria, performed the quality assessment, extracted the studies' characteristics, baseline, and outcome data of interest, and finally conducted the meta-analysis using RevManV5.3. RESULTS This systematic review and meta-analysis, including 17 RCTs with total 871 patients with T2DM, showed that resveratrol was superior to placebo on fasting blood glucose (FBG) and total cholesterol (TC) with doses ≥500mg {MD=-13.34, 95%CI [-22.73, -3.95], P=0.005}, {MD=-5.64, 95%CI [-6.95, -4.33], P<0.00001} respectively. Moreover, it improved HbA1c at three months {MD=-0.41, 95%CI [-0.65, -0.16], P=0.001 and systolic blood pressure {MD: -7.91, 95%CI [-10.44, -5.37], P<0.00001}. CONCLUSION We concluded that resveratrol beneficially modulates glycemic control as well as cardiometabolic parameters in patients with T2DM.
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Affiliation(s)
- Ibrahim A Abdelhaleem
- Faculty of Medicine, Zagazig University, Zagazig City, Sharkia 44519, Egypt; International Medical Research Association IMedRA, Egypt.
| | - Aml M Brakat
- Faculty of Medicine, Zagazig University, Zagazig City, Sharkia 44519, Egypt; International Medical Research Association IMedRA, Egypt
| | - Hoda M Adayel
- Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; International Medical Research Association IMedRA, Egypt
| | - Moamen M Asla
- Faculty of Medicine, Zagazig University, Zagazig City, Sharkia 44519, Egypt; International Medical Research Association IMedRA, Egypt
| | - Marwa A Rizk
- Faculty of Medicine, Zagazig University, Zagazig City, Sharkia 44519, Egypt; International Medical Research Association IMedRA, Egypt
| | - Aya Y Aboalfetoh
- Research and Development Department, Egyptian International Pharmaceutical Industries Company - EPICO, 10th of Ramadan City, Sharkia 44634, Egypt; International Medical Research Association IMedRA, Egypt
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Hamada H, Goto Y, Arakawa J, Murayama E, Ogawa Y, Konno M, Oyama T, Asai M, Sato A, Tanuma SI, Uchiumi F. Characterization of the human E2F4 promoter region and its response to 12-O-tetradecanoylphorbol-13-acetate. J Biochem 2019; 166:363-373. [PMID: 31199460 DOI: 10.1093/jb/mvz047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 06/11/2019] [Indexed: 12/23/2022] Open
Abstract
The E2F transcription factors (TFs), which control the progression of the cell cycle in response to DNA-damage and various stresses, are known to interact with a tumour suppressor, Retinoblastoma 1 (RB1). We previously showed that the response of the human RB1 promoter to a 12-O-tetradecanoylphorbol-13-acetate (TPA) in HL-60 cells is mediated by a duplicated GGAA motif, which is also present in the 5'-upstream of the E2F family genes. The motifs are especially rich in the 5'-upstream of the E2F4 gene. In the present study, we constructed luciferase (Luc) expression vectors containing a 466 bp of the 5'-upstream of the human E2F4 gene. The transfection of this plasmid and deletion/mutation-introduced derivatives into HL-60 cells and a Luc reporter assay showed that duplicated and triplicated GGAA (TTCC) motifs in the E2F4 promoter respond to TPA. As expected, electrophoretic mobility shift assay indicated that SPI1 (PU.1) binds to the GGAA motif-containing element. A quantitative RT-PCR and western blotting showed that the E2F4 transcripts and its encoding proteins accumulate during the differentiation of HL-60 into macrophage-like cells. In contrast, the expression of the E2F1 gene and the protein, which possibly acts as a cell cycle accelerator, was greatly diminished.
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Affiliation(s)
- Hiroshi Hamada
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Yuta Goto
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Jun Arakawa
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Erisa Murayama
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Yui Ogawa
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Midori Konno
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Takahiro Oyama
- Hinoki Shinyaku Co., Ltd, 9-6 Nibancho, Chiyoda-ku, Tokyo, Japan
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Masashi Asai
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Akira Sato
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Sei-Ichi Tanuma
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
- Genomic Medical Science, Research Institute of Science and Technology, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
| | - Fumiaki Uchiumi
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken, Japan
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Characterization of the 5'-flanking region of the human DNA helicase B (HELB) gene and its response to trans-Resveratrol. Sci Rep 2016; 6:24510. [PMID: 27079536 PMCID: PMC4832242 DOI: 10.1038/srep24510] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/30/2016] [Indexed: 12/17/2022] Open
Abstract
Human DNA helicase B (HELB/HDHB) regulates DNA replication through association with human DNA polymerase α-primase. In the present study, an 866-base pair (bp) of the 5′-flanking region of the human HELB gene-containing Luciferase (Luc) reporter plasmid, pHDHB-Luc was transfected into various cell lines and Luc activity was analyzed. Deletion analyses revealed that a 121-bp containing the major transcription start site (TSS) was essential for the basal promoter activity in all tested cells. TF-SEARCH analysis indicated that GC-box/Sp1 and duplicated GGAA-motifs containing putative STAT-x and c-ETS binding sites are located close to the TSS. Furthermore, chromatin immunoprecipitation (ChIP) analysis showed that PU.1 and Sp1 bind to the 121-bp region. Reverse transcriptase-polymerase chain reaction (RT-PCR) and western blot analyses showed the HELB gene and protein expression was up-regulated by trans-Resveratrol (Rsv) treatment in HeLa S3 cells. Moreover, transfection experiment indicated that mutations on the GC-boxes and the duplicated GGAA-motif greatly reduced promoter activity and the response to Rsv in HeLa S3 cells. These results suggest that Rsv, which is a natural compound that has been found to elongate the lifespan of various organisms, regulates HELB promoter activity through co-operation of the GC-boxes and the duplicated GGAA-motif in the 121-bp.
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Uchiumi F, Shoji K, Sasaki Y, Sasaki M, Sasaki Y, Oyama T, Sugisawa K, Tanuma SI. Characterization of the 5'-flanking region of the human TP53 gene and its response to the natural compound, Resveratrol. J Biochem 2016; 159:437-47. [PMID: 26684585 PMCID: PMC4885937 DOI: 10.1093/jb/mvv126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 11/02/2015] [Indexed: 01/19/2023] Open
Abstract
Tumour suppressor p53, which is encoded by theTP53gene, is widely known to play an important role in response to DNA damage and various stresses. It has recently been reported that p53 regulates glucose metabolism and that an increase in p53 protein level is induced after serum deprivation or treatments with a natural compound,trans-Resveratrol (Rsv). In this study, we constructed a Luciferase expression vector, pGL4-TP53-551, containing 551 bp of the 5'-upstream region of the humanTP53gene, which was then transfected into HeLa S3 cells. A Luciferase assay showed that Rsv treatment increased the promoter activity of theTP53gene in comparison to that ofPIF1 Detailed deletion and mutation analyses revealed that Nkx-2.5 and E2F-binding elements are required in addition to duplicated GGAA (TTCC), for the regulation ofTP53promoter activity. In this study, it is suggested that the transient induction ofTP53gene expression by Rsv treatment might be partly involved in its anti-aging effect through maintenance of chromosomal DNAs.
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Affiliation(s)
- Fumiaki Uchiumi
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences; Research Center for RNA Science, RIST;
| | - Koichiro Shoji
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Yuki Sasaki
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Moe Sasaki
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Yamato Sasaki
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Takahiro Oyama
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Kyoko Sugisawa
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences
| | - Sei-ichi Tanuma
- Research Center for RNA Science, RIST; Biochemistry, Faculty of Pharmaceutical Sciences; and Drug Creation Frontier Research Center, RIST, Tokyo University of Science, Noda-shi, Chiba-ken 278-8510, Japan
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Uchiumi F, Watanabe T, Ohta R, Abe H, Tanuma SI. PARP1 gene expression is downregulated by knockdown of PARG gene. Oncol Rep 2013; 29:1683-8. [PMID: 23467693 PMCID: PMC3658849 DOI: 10.3892/or.2013.2321] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Accepted: 01/29/2013] [Indexed: 11/05/2022] Open
Abstract
Poly(ADP-ribosyl)ation is a modification of nuclear proteins that regulates DNA replication, repair and transcription. In order to investigate the biological effects of degradation of poly(ADP-ribose), knockdown of the poly(ADP-ribose) glycohydrolase (PARG) gene was performed by introducing a short interfering RNA (siRNA)-pool into HeLa S3 cells. Notably, poly(ADP-ribosyl)ated proteins did not accumulate in the cells. Western blotting, quantitative RT-PCR analysis and a transient transfection assay revealed that poly(ADP-ribose) polymerase 1 (PARP1) gene/protein expression and its promoter activity were reduced in the PARG knockdown cells. These results suggest that the amount of poly(ADP-ribose) in a cell is regulated under the control of PARP1/PARG gene expression balance. Furthermore, in this study, we showed that PARG-siRNA enhanced cell death induced by staurosporine (STS). Thus, we propose a PARG-siRNA utilizing gene-therapy for cancer treatment.
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Affiliation(s)
- Fumiaki Uchiumi
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda-shi, Chiba-ken 278-8510, Japan.
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Chun SG, Yee NS. Werner syndrome as a hereditary risk factor for exocrine pancreatic cancer: potential role of WRN in pancreatic tumorigenesis and patient-tailored therapy. Cancer Biol Ther 2010; 10:430-7. [PMID: 20657174 DOI: 10.4161/cbt.10.5.12763] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Advanced age is considered a risk factor for pancreatic cancer, but this relationship at the molecular and genetic level remains unclear. We present a clinical case series focusing on an association between pancreatic adenocarcinoma and Werner syndrome (WS) that is an autosomal recessive genetic disorder characterized by accelerated aging and cancer predisposition, and is caused by loss-of-function mutations in the WS RecQ helicase gene (WRN). Although pancreatic adenocarcinoma mostly occurs in a sporadic fashion, a minority of cases occurs in the context of susceptible individuals with hereditary syndromes. While WS has not been previously recognized as a risk factor for developing malignant tumors of the exocrine pancreas, the clinicopathologic features of three reported patients suggest a contributory role of WRN deficiency in pancreatic carcinogenesis. Molecular genetic analyses support the role of WRN as a tumor suppressor gene, although recent evidence reveals that WRN can alternatively promote oncogenicity depending on the molecular context. Based upon the clinico-pathologic features of these patients and the role of WRN in experimental models, we propose that its loss-of-function predisposes the development of pancreatic adenocarcinoma through epigenetic silencing or loss-of-heterozygosity of WRN. To test this hypothesis, we are investigating the mechanistic role of WRN in pancreatic cancer models including a pancreatic adenocarcinoma cell line generated from a human with WS. These studies are expected to provide new insight into the relationship between aging and pancreatic tumorigenesis, and facilitate development of novel strategies for patient-tailored interventions in this deadly malignancy.
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Affiliation(s)
- Stephen G Chun
- Department of Surgery, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
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Uchiumi F, Enokida K, Shiraishi T, Masumi A, Tanuma SI. Characterization of the promoter region of the human IGHMBP2 (Smubp-2) gene and its response to TPA in HL-60 cells. Gene 2010; 463:8-17. [PMID: 20441787 DOI: 10.1016/j.gene.2010.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 04/13/2010] [Accepted: 04/28/2010] [Indexed: 11/28/2022]
Abstract
Immunoglobulin mu-binding protein 2 (IGHMBP2/Smubp-2) is a helicase motif-containing DNA-binding protein that has been suggested to regulate various nuclear functions. Recent studies indicated that mutations in the IGHMBP2 gene are responsible for spinal muscular atrophy with respiratory distress type I (SMARD1). However, the mechanism of regulation of IGHMBP2 gene expression remains unclear. In the present study, a 2.0-kb fragment of the 5'-flanking (promoter) region of the human IGHMBP2 gene was isolated from the HL-60 genome by PCR and ligated into a luciferase (Luc) expression vector, pGL3, to generate the pSmu-Luc plasmid. Deletion analyses revealed that a 108-bp region is essential for basal promoter activity with a response to TPA in HL-60 cells. TF-SEARCH analysis showed that overlapping ets (GGAA) motifs are located upstream of the transcription start sites. Chromatin immunoprecipitation (ChIP) assay, electropheretic mobility shift assay (EMSA) and competition analyses indicated that PU.1 (Spi-1) recognizes and binds to the duplicated ets motifs in this 108-bp region. Moreover, co-transfection of the PU.1 expression plasmid and pSmu-Luc into HL-60 cells revealed that PU.1 modulates TPA-induced IGHMBP2 promoter activity. Taken together, these observations suggest that the duplicated GGAA motifs are essential for the IGHMBP2 promoter activity and its positive response to TPA in HL-60 cells.
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Affiliation(s)
- Fumiaki Uchiumi
- Department of Gene Regulation, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 270-8510 Japan.
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Uchiumi F, Watanabe T, Tanuma SI. Characterization of various promoter regions of the human DNA helicase-encoding genes and identification of duplicated ets (GGAA) motifs as an essential transcription regulatory element. Exp Cell Res 2010; 316:1523-34. [DOI: 10.1016/j.yexcr.2010.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Revised: 03/01/2010] [Accepted: 03/10/2010] [Indexed: 01/05/2023]
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Rossi ML, Ghosh AK, Bohr VA. Roles of Werner syndrome protein in protection of genome integrity. DNA Repair (Amst) 2010; 9:331-44. [PMID: 20075015 DOI: 10.1016/j.dnarep.2009.12.011] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Werner syndrome protein (WRN) is one of a family of five human RecQ helicases implicated in the maintenance of genome stability. The conserved RecQ family also includes RecQ1, Bloom syndrome protein (BLM), RecQ4, and RecQ5 in humans, as well as Sgs1 in Saccharomyces cerevisiae, Rqh1 in Schizosaccharomyces pombe, and homologs in Caenorhabditis elegans, Xenopus laevis, and Drosophila melanogaster. Defects in three of the RecQ helicases, RecQ4, BLM, and WRN, cause human pathologies linked with cancer predisposition and premature aging. Mutations in the WRN gene are the causative factor of Werner syndrome (WS). WRN is one of the best characterized of the RecQ helicases and is known to have roles in DNA replication and repair, transcription, and telomere maintenance. Studies both in vitro and in vivo indicate that the roles of WRN in a variety of DNA processes are mediated by post-translational modifications, as well as several important protein-protein interactions. In this work, we will summarize some of the early studies on the cellular roles of WRN and highlight the recent findings that shed some light on the link between the protein with its cellular functions and the disease pathology.
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Affiliation(s)
- Marie L Rossi
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
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