1
|
Kari D, Mijiti P, Zou S, Zhang P. Study on the correlation between suicidal ideation and ABI3BP gene、DPYSL2 gene methylation in pediatric bipolar disorder with depressive episode. Heliyon 2024; 10:e23680. [PMID: 38226278 PMCID: PMC10788454 DOI: 10.1016/j.heliyon.2023.e23680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 11/27/2023] [Accepted: 12/09/2023] [Indexed: 01/17/2024] Open
Abstract
Patients with bipolar disorder have a higher risk of suicide than the general population. This study aimed to explore the correlation between suicide and gene methylation, as screened by genome-wide scanning, in children and adolescents with bipolar disorder. A total of 45 children and adolescents with bipolar disorder were divided into a suicidal ideation group (n = 41), a non-suicidal ideation group (n = 4), a low-risk group (n = 12), and a middle-to-high-risk group (n = 33). A pre-experiment was conducted on the suicidal ideation (n = 6) and non-suicidal ideation groups (n = 4). Blood samples were scanned using an Illumina HD 850K microarray, and methylation levels were analysed. Differential methylation sites among the sample groups were screened from the original data, and genes related to suicide were identified. Methylation of the ABI3BP and DPYSL2 genes was detected by pyrophosphate sequencing and statistically analysed. There was a significant difference in age between the low- and middle-risk groups. The results of GO analysis for the suicidal ideation and non-suicidal ideation groups showed that the differential methylation sites were mainly involved in the interferon-γ-mediated signalling pathway, with the main signalling pathways being the inflammatory bowel disease (IBD) pathway and type 1 diabetes mellitus (T1DM) pathway. There were significant differences in the methylation of ABI3BP, HLA-DQB1, HLA-DRB1, AUTS2, SP3, NINJ2, DPYSL2, and other genes between the suicidal and non-suicidal ideation groups. There was also a statistically significant difference in the gene methylation levels between the two groups. However, there was no significant difference in the degree of methylation of the ABI3BP and DPYSL2 genes between the low- and middle-to-high-risk groups. These results suggest that suicidal ideation is correlated with the methylation levels of differentially methylated genes in children with bipolar disorder. However, the severity of suicide risk in paediatric patients with bipolar disorder may not be correlated with the degree of methylation of the ABI3BP and DPYSL2 genes. Therefore, further validation was required.
Collapse
Affiliation(s)
- Dilinazi Kari
- Department of Clinical Psychology, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi Xinjiang, 830001, China
| | - Peierdun Mijiti
- Department of Epidemiology and Biostatistics, School of Public Health, Urumqi Xinjiang, 830001, China
| | - Shaohong Zou
- Department of Clinical Psychology, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi Xinjiang, 830001, China
| | - Peiwen Zhang
- Medical College, Shihezi University, Shihezi, Xinjiang, 832003, China
| |
Collapse
|
2
|
Duan SL, Jiang Y, Li GQ, Fu W, Song Z, Li LN, Li J. Research insights into the chemokine-like factor (CKLF)-like MARVEL transmembrane domain-containing family (CMTM): their roles in various tumors. PeerJ 2024; 12:e16757. [PMID: 38223763 PMCID: PMC10787544 DOI: 10.7717/peerj.16757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
The chemokine-like factor (CKLF)-like MARVEL transmembrane domain-containing (CMTM) family includes CMTM1-8 and CKLF, and they play key roles in the hematopoietic, immune, cardiovascular, and male reproductive systems, participating in the physiological functions, cancer, and other diseases associated with these systems. CMTM family members activate and chemoattract immune cells to affect the proliferation and invasion of tumor cells through a similar mechanism, the structural characteristics typical of chemokines and transmembrane 4 superfamily (TM4SF). In this review, we discuss each CMTM family member's chromosomal location, involved signaling pathways, expression patterns, and potential roles, and mechanisms of action in pancreatic, breast, gastric and liver cancers. Furthermore, we discuss several clinically applied tumor therapies targeted at the CMTM family, indicating that CMTM family members could be novel immune checkpoints and potential targets effective in tumor treatment.
Collapse
Affiliation(s)
- Sai-Li Duan
- Department of General Surgery, Xiangya Hospital Central South University, Changsha Province, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha Province, Hunan, China
| | - Yingke Jiang
- Department of General Surgery, Xiangya Hospital Central South University, Changsha Province, Hunan, China
| | - Guo-Qing Li
- Xiangya School of Medicine, Central South University, Changsha Province, Hunan, China
| | - Weijie Fu
- Xiangya School of Medicine, Central South University, Changsha Province, Hunan, China
| | - Zewen Song
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha Province, Hunan, China
| | - Li-Nan Li
- Department of Oncology, The 1st Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Jia Li
- Department of Oncology, The 1st Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| |
Collapse
|
3
|
Huang DY, Lu ST, Chen YS, Cheng CY, Lin WW. Epigenetic upregulation of spleen tyrosine kinase in cancer cells through p53-dependent downregulation of DNA methyltransferase. Exp Cell Res 2023; 425:113540. [PMID: 36889573 DOI: 10.1016/j.yexcr.2023.113540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/25/2023] [Accepted: 03/04/2023] [Indexed: 03/08/2023]
Abstract
Syk is a tumor suppressor gene in some solid tumors. Currently, it remains unknown how Syk gene hypermethylation is controlled by DNA methyltransferase (DNMT) and p53. In colorectal cancer HCT116 cells, we found that protein and mRNA levels of Syk were much higher in WT than in p53-/- cells. Both p53 inhibitor PFT-α and p53 silencing can reduce the protein and mRNA expression of Syk in WT cells, while DNMT inhibitor 5-Aza-2'-dC can increase Syk expression in p53-/- cells. Interestingly, the DNMT expression in p53-/- HCT116 cells was higher than that in WT cells. PFT-α can not only enhance Syk gene methylation but also increase DNMT1 protein and mRNA levels in WT HCT116 cells. In metastatic lung cancer cell lines A549 and PC9, which express WT p53 and gain function of p53, respectively, PFT-α can also downregulate Syk mRNA and protein expression. However, the Syk methylation level was increased by PFT-α in A549 but not in PC9 cells. Likewise, 5-Aza-2'-dC transcriptionally increased Syk gene expression in A549 cells, but not in PC9 cells. In summary methylation of Syk promoter requires DNMT1, and p53 can upregulate Syk expression via downregulation of DNMT1 at the transcriptional level.
Collapse
Affiliation(s)
- Duen-Yi Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shang-Te Lu
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Yuan-Shen Chen
- Department of Neurosurgery, National Taiwan University Hospital Yunlin Branch, Douliu, 64041, Taiwan
| | - Ching-Yuan Cheng
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Wan Lin
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
4
|
Yang MN, Huang R, Zheng T, Dong Y, Wang WJ, Xu YJ, Mehra V, Zhou GD, Liu X, He H, Fang F, Li F, Fan JG, Zhang J, Ouyang F, Briollais L, Li J, Luo ZC. Genome-wide placental DNA methylations in fetal overgrowth and associations with leptin, adiponectin and fetal growth factors. Clin Epigenetics 2022; 14:192. [PMID: 36585686 PMCID: PMC9801645 DOI: 10.1186/s13148-022-01412-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 12/15/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Fetal overgrowth "programs" an elevated risk of type 2 diabetes in adulthood. Epigenetic alterations may be a mechanism in programming the vulnerability. We sought to characterize genome-wide alterations in placental gene methylations in fetal overgrowth and the associations with metabolic health biomarkers including leptin, adiponectin and fetal growth factors. RESULTS Comparing genome-wide placental gene DNA methylations in large-for-gestational-age (LGA, an indicator of fetal overgrowth, n = 30) versus optimal-for-gestational-age (OGA, control, n = 30) infants using the Illumina Infinium Human Methylation-EPIC BeadChip, we identified 543 differential methylation positions (DMPs; 397 hypermethylated, 146 hypomethylated) at false discovery rate < 5% and absolute methylation difference > 0.05 after adjusting for placental cell-type heterogeneity, maternal age, pre-pregnancy BMI and HbA1c levels during pregnancy. Twenty-five DMPs annotated to 20 genes (QSOX1, FCHSD2, LOC101928162, ADGRB3, GCNT1, TAP1, MYO16, NAV1, ATP8A2, LBXCOR1, EN2, INCA1, CAMTA2, SORCS2, SLC4A4, RPA3, UMAD1,USP53, OR2L13 and NR3C2) could explain 80% of the birth weight variations. Pathway analyses did not detect any statistically significant pathways after correcting for multiple tests. We validated a newly discovered differentially (hyper-)methylated gene-visual system homeobox 1 (VSX1) in an independent pyrosequencing study sample (LGA 47, OGA 47). Our data confirmed a hypermethylated gene-cadherin 13 (CDH13) reported in a previous epigenome-wide association study. Adiponectin in cord blood was correlated with its gene methylation in the placenta, while leptin and fetal growth factors (insulin, IGF-1, IGF-2) were not. CONCLUSIONS Fetal overgrowth may be associated with a large number of altered placental gene methylations. Placental VSX1 and CDH13 genes are hypermethylated in fetal overgrowth. Placental ADIPOQ gene methylations and fetal circulating adiponectin levels were correlated, suggesting the contribution of placenta-originated adiponectin to cord blood adiponectin.
Collapse
Affiliation(s)
- Meng-Nan Yang
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China ,grid.17063.330000 0001 2157 2938Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, L5-240, Murray Street 60, Toronto, ON M5G 1X5 Canada
| | - Rong Huang
- grid.17063.330000 0001 2157 2938Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, L5-240, Murray Street 60, Toronto, ON M5G 1X5 Canada
| | - Tao Zheng
- grid.16821.3c0000 0004 0368 8293Department of Obstetrics and Gynecology, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Yu Dong
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Wen-Juan Wang
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Ya-Jie Xu
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Vrati Mehra
- grid.17063.330000 0001 2157 2938Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, L5-240, Murray Street 60, Toronto, ON M5G 1X5 Canada
| | - Guang-Di Zhou
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Xin Liu
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Hua He
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Fang Fang
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Fei Li
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Jian-Gao Fan
- grid.16821.3c0000 0004 0368 8293Center for Fatty Liver, Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092 China
| | - Jun Zhang
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Fengxiu Ouyang
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China
| | - Laurent Briollais
- grid.17063.330000 0001 2157 2938Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, L5-240, Murray Street 60, Toronto, ON M5G 1X5 Canada
| | - Jiong Li
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China ,grid.7048.b0000 0001 1956 2722Department of Clinical Medicine-Department of Clinical Epidemiology, Aarhus University, Olof Palmes Allé 43-45, 8200 Aathus, Denmark
| | - Zhong-Cheng Luo
- grid.16821.3c0000 0004 0368 8293Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200092 China ,grid.17063.330000 0001 2157 2938Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, L5-240, Murray Street 60, Toronto, ON M5G 1X5 Canada
| | | |
Collapse
|
5
|
Bosire C, Vidal AC, Smith JS, Jima D, Huang Z, Skaar D, Valea F, Bentley R, Gradison M, Yarnall KSH, Ford A, Overcash F, Murphy SK, Hoyo C. Association between PEG3 DNA methylation and high-grade cervical intraepithelial neoplasia. Infect Agent Cancer 2021; 16:42. [PMID: 34120615 PMCID: PMC8201933 DOI: 10.1186/s13027-021-00382-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/02/2021] [Indexed: 02/03/2023] Open
Abstract
Background Epigenetic mechanisms are hypothesized to contribute substantially to the progression of cervical intraepithelial neoplasia (CIN) to cervical cancer, although empirical data are limited. Methods Women (n = 419) were enrolled at colposcopic evaluation at Duke Medical Center in Durham, North Carolina. Human papillomavirus (HPV) was genotyped by HPV linear array and CIN grade was ascertained by biopsy pathologic review. DNA methylation was measured at differentially methylated regions (DMRs) regulating genomic imprinting of the IGF2/H19, IGF2AS, MESTIT1/MEST, MEG3, PLAGL1/HYMAI, KvDMR and PEG10, PEG3 imprinted domains, using Sequenom-EpiTYPER assays. Logistic regression models were used to evaluate the associations between HPV infection, DMR methylation and CIN risk overall and by race. Results Of the 419 participants, 20 had CIN3+, 52 had CIN2, and 347 had ≤ CIN1 (CIN1 and negative histology). The median participant age was 28.6 (IQR:11.6) and 40% were African American. Overall, we found no statistically significant association between altered methylation in selected DMRs and CIN2+ compared to ≤CIN1. Similarly, there was no significant association between DMR methylation and CIN3+ compared to ≤CIN2. Restricting the outcome to CIN2+ cases that were HR-HPV positive and p16 staining positive, we found a significant association with PEG3 DMR methylation (OR: 1.56 95% CI: 1.03–2.36). Conclusions While the small number of high-grade CIN cases limit inferences, our findings suggest an association between altered DNA methylation at regulatory regions of PEG3 and high grade CIN in high-risk HPV positive cases. Supplementary Information The online version contains supplementary material available at 10.1186/s13027-021-00382-3.
Collapse
Affiliation(s)
- Claire Bosire
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
| | - Adriana C Vidal
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jennifer S Smith
- Department of Epidemiology, Gillings School of Global Public Health and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Dereje Jima
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
| | - Zhiqing Huang
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University School of Medicine, Durham, NC, USA
| | - David Skaar
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
| | - Fidel Valea
- Department of Obstetrics and Gynecology, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Rex Bentley
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Margaret Gradison
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA
| | - Kimberly S H Yarnall
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA
| | - Anne Ford
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Francine Overcash
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA
| | - Susan K Murphy
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Cathrine Hoyo
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
| |
Collapse
|
6
|
Assem S, Abdelbaki TN, Mohy-El Dine SH, Ketat AF, Abdelmonsif DA. SERPINE-1 Gene Methylation and Protein as Molecular Predictors of Laparoscopic Sleeve Gastrectomy Outcome. Obes Surg 2020; 30:2620-2630. [PMID: 32170551 DOI: 10.1007/s11695-020-04533-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Body weight is subjected to genetic and epigenetic modifiers that might affect the success of weight loss interventions. Because of its possible complications and disparity in patients' response, identification of predictors to the outcome of bariatric surgery is indispensable. OBJECTIVES This prospective study aims to investigate serpin peptidase inhibitor type 1 (SERPINE-1) protein and gene methylation as molecular predictors to the outcome of bariatric surgery. PATIENTS AND METHODS One hundred participants were enrolled and divided to control group (n = 50) and obese patients who underwent laparoscopic sleeve gastrectomy (LSG) (n = 50). Anthropometric measurements were assessed and blood samples were collected preoperatively and 6 months postoperatively for assessment of SERPINE-1 protein and gene methylation, C-reactive protein (CRP), and homeostatic model assessment of insulin resistance (HOMA-IR). Moreover, subjects were followed for 2 years for weight loss parameters. RESULTS Patients with obesity showed high baseline SERPINE-1 protein and gene hypermethylation where LSG was followed by a drop in SERPINE-1 protein level but not gene hypermethylation. Baseline SERPINE-1 gene methylation was negatively related to postoperative weight loss and was the independent predictor to weight loss after LSG. Likewise, postoperative SERPINE-1 protein was negatively related to weight loss with independent expression from its gene methylation state. Furthermore, postoperative SERPINE-1 gene methylation correlated to CRP and HOMA-IR. CONCLUSION Baseline SERPINE-1 gene methylation might be a predictor of weight loss after LSG. Meanwhile, postoperative SERPINE-1 protein could be a predictor to weight loss maintenance after LSG. Lastly, postoperative SERPINE-1 gene methylation might serve as an index to postoperative changes in obesity-related comorbidities.
Collapse
Affiliation(s)
- Sara Assem
- Department of Medical Biochemistry, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Tamer N Abdelbaki
- Department of Surgery, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Safaa H Mohy-El Dine
- Department of Medical Biochemistry, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Amel F Ketat
- Department of Medical Biochemistry, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, University of Alexandria, Alexandria, Egypt. .,Molecular Biology Lab. and Nanomedicine Lab., Center of Excellence for Research in Regenerative Medicine and Applications, University of Alexandria, Alexandria, Egypt.
| |
Collapse
|
7
|
Soda K. Spermine and gene methylation: a mechanism of lifespan extension induced by polyamine-rich diet. Amino Acids 2019; 52:213-224. [PMID: 31004229 DOI: 10.1007/s00726-019-02733-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/06/2019] [Indexed: 01/05/2023]
Abstract
The polyamines spermidine and spermine are synthesized in almost all organisms and are also contained in food. Polyamine synthesis decreases with aging, but no significant decrease in polyamine concentrations were found in organs, tissues, and blood of adult animals and humans. We found that healthy dietary patterns were associated with a preference for polyamine-rich foods, and first reported that increased polyamine intake extended the lifespan of mice and decreased the incidence of colon cancer induced by repeated administration of moderate amounts of a carcinogen. Recent investigations have revealed that changes in DNA methylation status play an important role in lifespan and aging-associated pathologies. The methylation of DNA is regulated by DNA methyltransferases in the presence of S-adenosylmethionine. Decarboxylated S-adenosylmethionine, converted from S-adenosylmethionine by S-adenosylmethionine decarboxylase, provides an aminopropyl group to synthesize spermine and spermidine and acts to inhibit DNMT activity. Long-term increased polyamine intake were shown to elevate blood spermine levels in mice and humans. In vitro studies demonstrated that spermine reversed changes induced by the inhibition of ornithine decarboxylase (e.g., increased decarboxylated S-adenosylmethionine, decreased DNA methyltransferase activity, increased aberrant DNA methylation), whose activity decreases with aging. Further, aged mice fed high-polyamine chow demonstrated suppression of aberrant DNA methylation and a consequent increase in protein levels of lymphocyte function-associated antigen 1, which plays a pivotal role on inflammatory process. This review discusses the relation between polyamine metabolism and DNA methylation, as well as the biological mechanism of lifespan extension induced by increased polyamine intake.
Collapse
Affiliation(s)
- Kuniyasu Soda
- Cardiovascular Research Institute, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Omiya, Saitama-City, Saitama, Japan.
| |
Collapse
|
8
|
Shi B, Xu L, Mao S, Xu L, Liu Z, Sun X, Zhu Z, Qiu Y. Abnormal PITX1 gene methylation in adolescent idiopathic scoliosis: a pilot study. BMC Musculoskelet Disord 2018; 19:138. [PMID: 29743058 PMCID: PMC5941792 DOI: 10.1186/s12891-018-2054-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 04/23/2018] [Indexed: 01/18/2023] Open
Abstract
Background The gene of pituitary homeobox 1 (PITX1) has been reported to be down-regulated in adolescent idiopathic scoliosis (AIS), of which the cause has not been well addressed. The abnormal DNA methylation was recently assumed to be an important mechanism for the down-regulated genes expression. However, the association between PITX1 promoter methylation and the etiology of AIS was not clear. Methods The peripheral blood samples of 50 AIS patients and 50 healthy controls were collected and the genomic DNA was extracted. The pyrosequencing assay was used to assess the methylation status of PITX1 promoter and real-time quantitative polymerase chain reaction (PCR) was used to detect the PITX1 gene expression. Comparison analysis was performed using independent t test and Chi-square tests, while correlation analysis were performed with 2-tailed Pearson coefficients. Results The mean methylation level was (3.52 ± 0.96)% in AIS and (1.40 ± 0.81)% in healthy controls (P < 0.0001). The PITX1 gene expression was 0.15 ± 0.08 in AIS and 0.80 ± 0.55 in healthy controls (P < 0.0001). The comparative analysis showed significant difference in age (P = 0.021) and Cobb angle of the main curve (P = 0.0001) between AIS groups with positive and negative methylation. The methylation level of 6 CpG sites in PITX1 promoters was significantly associated with Cobb angle of the main curve (P < 0.001) in AIS. No statistical relationship between PITX1 promoter methylation and gene expression was found in AIS (P = 0.842). Conclusion Significantly higher methylation level and lower PITX1 gene expression are found in AIS patients. PITX1 methylation is associated with Cobb angles of the main curves in AIS. DNA methylation thus plays an important role in the etiology and curve progression in AIS.
Collapse
Affiliation(s)
- Benlong Shi
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Liang Xu
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Saihu Mao
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Leilei Xu
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Zhen Liu
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Xu Sun
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| | - Zezhang Zhu
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China.
| | - Yong Qiu
- Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road No. 321, Nanjing, 210008, China
| |
Collapse
|
9
|
Wang N, Sui F, Ma J, Su X, Liu J, Yao D, Shi B, Hou P, Yang Q. Site-specific Hypermethylation of RUNX3 Predicts Poor Prognosis in Gastric Cancer. Arch Med Res 2017; 47:285-92. [PMID: 27664488 DOI: 10.1016/j.arcmed.2016.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 07/22/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Methylation status of RUNX3 remains largely unknown in gastric cancer (GC). The aim of this study was to prognostically evaluate the methylation level of CpG sites within RUNX3 promoter region in GC. METHODS Using pyrosequencing, we quantitatively explored the methylation status of 8 CpG sites within RUNX3 promoter region for 76 gastric cancer and 24 normal gastric tissues. We then analyzed the association between methylation level of each CpG site and clinicopathological characteristics and outcomes in the cohort. RESULTS Methylation of RUNX3 promoter was significantly higher in GC than normal subjects. Overall methylation level was closely associated with tumor invasion and TNM stage. Positive associations were found between hypermethylation of the following concerned sites and variables: site -1392, -1397, -1403, -1415 and tumor invasion, as well as TNM stage; site -1392 and lymph node metastasis along with number of lymph node metastases; site -1415 and cancer recurrence; site -1403, -1415 and cancer-related deaths. In multivariate analysis, tumor invasion was correlated with sites -1392 and -1397. Lymph node metastasis was associated with site -1392. Most importantly, methylation of site -1415 was associated with poor survival by using Cox survival regression. CONCLUSION Analysis of RUNX3 gene promoter by quantitative pyrosequencing suggested methylation status of RUNX3 is different in normal and tumor tissues. RUNX3 methylation level is associated with GC, especially the methylation at site -1415 contributes to the poor prognosis in GC. Thus, RUNX3 methylation may serve as a valuable diagnostic and prognostic biomarker in GC.
Collapse
Affiliation(s)
- Na Wang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Fang Sui
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jingjing Ma
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Xi Su
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jiazhe Liu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Demao Yao
- Department of Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Qi Yang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China.
| |
Collapse
|
10
|
Liu Y, Wu H, Zhou Q, Song Q, Rui J, Zou B, Zhou G. Digital quantification of gene methylation in stool DNA by emulsion-PCR coupled with hydrogel immobilized bead-array. Biosens Bioelectron 2017; 92:596-601. [PMID: 27829567 DOI: 10.1016/j.bios.2016.10.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/08/2016] [Accepted: 10/19/2016] [Indexed: 01/04/2023]
Abstract
Aberrations of gene methylation in stool DNA (sDNA) is an effective biomarker for non-invasive colorectal cancer diagnosis. However, it is challenging to accurately quantitate the gene methylation levels in sDNA due to the low abundance and degradation of sDNA. In this study, a digital quantification strategy was proposed by combining emulsion PCR (emPCR) with hydrogel immobilized bead-array. The assay includes following steps: bisulfite conversion of sDNA, pre-amplification by PCR with specific primers containing 5' universal sequences, emPCR of pre-amplicons with beaded primers to achieve single-molecular amplification and identification of hydrogel embedding beads coated with amplicons. The sensitivity and the specificity of the method are high enough to pick up 0.05% methylated targets from unmethylated DNA background. The successful detection of hypermethylated vimentin gene in clinical stool samples suggests that the proposed method should be a potential tool for non-invasive colorectal cancer screening.
Collapse
|
11
|
Jin Y, Xu P, Liu X, Zhang C, Tan C, Chen C, Sun X, Xu Y. Cigarette Smoking, BPDE-DNA Adducts, and Aberrant Promoter Methylations of Tumor Suppressor Genes (TSGs) in NSCLC from Chinese Population. Cancer Invest 2016; 34:173-80. [PMID: 27042875 DOI: 10.3109/07357907.2016.1156689] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Non-small cell lung cancer (NSCLC) is related to the genetic and epigenetic factors. The goal of this study was to determine association of cigarette smoking and BPDE-DNA adducts with promoter methylations of several genes in NSCLC. Methylation of the promoters of p16, RARβ, DAPK, MGMT, and TIMP-3 genes of tumor tissues from 199 lung cancer patients was analyzed with methylation-specific PCR (MSP), and BPDE-DNA adduct level in lung cancer tissue was obtained by ELISA. Level of BPDE-DNA adduct increased significantly in males, aged people (over 60 years), and smokers; however, no significant difference was found while comparing the BPDE-DNA adduct levels among different tumor types, locations, and stages. Cigarette smoking was also associated with increased BPDE-DNA adducts level (OR = 2.43, p > .05) and increased methylation level in at least 1 gene (OR = 5.22, p < .01), both in dose-response manner. Similarly, cigarette smoking also significantly increase the risk of p16 or DAPK methylation (OR = 3.02, p < .05 for p16, and 3.66, p < .05 for DAPK). The highest risk of BPDE-DNA adducts was detected among individuals with cigarette smoking for more than 40 pack-years (OR = 4.21, p < .01). Furthermore, the present study did not show that BPDE-DNA adducts are significantly associated with abnormal TSGs methylations in NSCLC, including SCC and AdO, respectively. Conclusively, cigarette smoking is significantly associated with the increase of BPDE-DNA adduct level, promoter hypermethylation of p16 and DAPK genes, while BPDE-DNA adduct was not significantly related to abnormal promoter hypermethylation in TSGs, suggesting that BPDE-DNA adducts and TSGs methylations play independent roles in NSCLC.
Collapse
Affiliation(s)
- Yongtang Jin
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Peiwei Xu
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Xinneng Liu
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Chunye Zhang
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Cong Tan
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Chunmei Chen
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Xiaoyu Sun
- a Department of Environmental Medicine, Zhejiang University School of Medicine, Zhejiang University , Hangzhou , China
| | - Yingchun Xu
- b Institute of Pharmacology, Zhejiang University School of Pharmacology, Zhejiang University , Hangzhou , China
| |
Collapse
|
12
|
Bednarek K, Kiwerska K, Szaumkessel M, Bodnar M, Kostrzewska-Poczekaj M, Marszalek A, Janiszewska J, Bartochowska A, Jackowska J, Wierzbicka M, Grenman R, Szyfter K, Giefing M, Jarmuz-Szymczak M. Recurrent CDK1 overexpression in laryngeal squamous cell carcinoma. Tumour Biol 2016; 37:11115-26. [PMID: 26912061 PMCID: PMC4999469 DOI: 10.1007/s13277-016-4991-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/11/2016] [Indexed: 12/12/2022] Open
Abstract
In this study, we analyzed the expression profile of four genes (CCNA2, CCNB1, CCNB2, and CDK1) in laryngeal squamous cell carcinoma (LSCC) cell lines and tumor samples. With the application of microarray platform, we have shown the overexpression of these genes in all analyzed LSCC samples in comparison to non-cancer controls from head and neck region. We have selected CDK1 for further analysis, due to its leading role in cell cycle regulation. It is a member of the Ser/Thr protein kinase family of proven oncogenic properties. The results obtained for CDK1 were further confirmed with the application of reverse transcription quantitative polymerase chain reaction (RT-qPCR) technique, Western blot, and immunohistochemistry (IHC). The observed upregulation of CDK1 in laryngeal squamous cell carcinoma has encouraged us to analyze for genetic mechanisms that can be responsible this phenomenon. Therefore, with the application of array-CGH, sequencing analysis and two methods for epigenetic regulation analysis (DNA methylation and miRNA expression), we tried to identify such potential mechanisms. Our attempts to identify the molecular mechanisms responsible for observed changes failed as we did not observe significant alterations neither in the DNA sequence nor in the gene copy number that could underline CDK1 upregulation. Similarly, the pyrosequencing and miRNA expression analyses did not reveal any differences in methylation level and miRNA expression, respectively; thus, these mechanisms probably do not contribute to elevation of CDK1 expression in LSCC. However, our results suggest that alteration of CDK1 expression on both mRNA and protein level probably appears on the very early step of carcinogenesis.
Collapse
Affiliation(s)
- K Bednarek
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - K Kiwerska
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - M Szaumkessel
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - M Bodnar
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - A Marszalek
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Oncologic Pathology, Greater Poland Cancer Centre, Poznan, Poland
| | - J Janiszewska
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - A Bartochowska
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - J Jackowska
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - M Wierzbicka
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - R Grenman
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Medical Biochemistry, Turku University Hospital and University of Turku, Turku, Finland
| | - K Szyfter
- Department of Audiology and Phoniatry, University of Medical Sciences, Poznan, Poland
| | - M Giefing
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland.,Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - M Jarmuz-Szymczak
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland. .,Department of Hematology, University of Medical Sciences, Poznan, Poland.
| |
Collapse
|
13
|
Figura N, Marano L, Moretti E, Ponzetto A. Helicobacter pylori infection and gastric carcinoma: Not all the strains and patients are alike. World J Gastrointest Oncol 2016; 8:40-54. [PMID: 26798436 PMCID: PMC4714145 DOI: 10.4251/wjgo.v8.i1.40] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 10/06/2015] [Accepted: 11/03/2015] [Indexed: 02/05/2023] Open
Abstract
Gastric carcinoma (GC) develops in only 1%-3% of Helicobacter pylori (H. pylori) infected people. The role in GC formation of the bacterial genotypes, gene polymorphisms and host's factors may therefore be important. The risk of GC is enhanced when individuals are infected by strains expressing the oncoprotein CagA, in particular if CagA has a high number of repeats containing the EPIYA sequence in its C'-terminal variable region or particular amino acid sequences flank the EPIYA motifs. H. pylori infection triggers an inflammatory response characterised by an increased secretion of some chemokines by immunocytes and colonised gastric epithelial cells; these molecules are especially constituted by proteins composing the interleukin-1beta (IL-1β) group and tumour necrosis factor-alpha (TNF-α). Polymorphisms in the promoter regions of genes encoding these molecules, could account for high concentrations of IL-1β and TNF-α in the gastric mucosa, which may cause hypochlorhydria and eventually GC. Inconsistent results have been attained with other haplotypes of inflammatory and anti-inflammatory cytokines. Genomic mechanisms of GC development are mainly based on chromosomal or microsatellite instability (MSI) and deregulation of signalling transduction pathways. H. pylori infection may induce DNA instability and breaks of double-strand DNA in gastric mucocytes. Different H. pylori strains seem to differently increase the risk of cancer development run by the host. Certain H. pylori genotypes (such as the cagA positive) induce high degrees of chronic inflammation and determine an increase of mutagenesis rate, oxidative-stress, mismatch repair mechanisms, down-regulation of base excision and genetic instability, as well as generation of reactive oxygen species that modulate apoptosis; these phenomena may end to trigger or concur to GC development.
Collapse
|
14
|
Abstract
Exploring the putative impact of circadian rhythms is a relatively novel approach to illuminating hormone-related female breast cancer etiology and prognosis. One of several proposed mechanisms underlying breast cancer risk among individuals exposed to light at night involves circadian gene alterations. Although in vitro and animal studies indicate a key role of circadian genes in breast tumor suppression, there is a paucity of data on the role of circadian genes in human breast cancer. This review summarizes recent findings of circadian gene expression and DNA methylation profile from human breast cancer studies in relation to hormonal status, clinicopathological features of tumors, and exposure to night shift work. The major findings from human studies indicate that expression of circadian genes is deregulated in breast cancer. Breast cancer etiology and prognosis-associated PERs, CRYs, CLOCK downregulation, and TIMELESS upregulation may be related to relevant gene methylation in tumor tissue. Alterations and desynchronization of molecular clock machinery found on genetic and epigenetic level were observed in more aggressive breast cancer tumors and those lacking estrogen receptors.
Collapse
Affiliation(s)
- E Reszka
- Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - M Przybek
- Nofer Institute of Occupational Medicine, Lodz, Poland
| |
Collapse
|
15
|
Archer SL. Acquired Mitochondrial Abnormalities, Including Epigenetic Inhibition of Superoxide Dismutase 2, in Pulmonary Hypertension and Cancer: Therapeutic Implications. Adv Exp Med Biol 2016; 903:29-53. [PMID: 27343087 DOI: 10.1007/978-1-4899-7678-9_3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There is no cure for non-small-cell lung cancer (NSCLC) or pulmonary arterial hypertension (PAH). Therapies lack efficacy and/or are toxic, reflecting a failure to target disease abnormalities that are distinct from processes vital to normal cells. NSCLC and PAH share reversible mitochondrial-metabolic abnormalities which may offer selective therapeutic targets. The following mutually reinforcing, mitochondrial abnormalities favor proliferation, impair apoptosis, and are relatively restricted to PAH and cancer cells: (1) Epigenetic silencing of superoxide dismutase-2 (SOD2) by methylation of CpG islands creates a pseudohypoxic redox environment that causes normoxic activation of hypoxia inducible factor (HIF-1α). (2) HIF-1α increases expression of pyruvate dehydrogenase kinase (PDK), which impairs oxidative metabolism and promotes a glycolytic metabolic state. (3) Mitochondrial fragmentation, partially due to mitofusin-2 downregulation, promotes proliferation. This review focuses on the recent discovery that decreased expression of SOD2, a putative tumor-suppressor gene and the major source of H2O2, results from hypermethylation of CpG islands. In cancer and PAH hypermethylation of a site in the enhancer region of intron 2 inhibits SOD2 transcription. In normal PASMC, SOD2 siRNA decreases H2O2 and activates HIF-1α. In PAH, reduced SOD2 expression decreases H2O2, reduces the cytosol and thereby activates HIF-1α. This causes a glycolytic shift in metabolism and increases the proliferation/apoptosis ratio by downregulating Kv1.5 channels, increasing cytosolic calcium, and inhibiting caspases. The DNA methyltransferase inhibitor, 5-aza-2'-deoxycytidine, which restores SOD2 expression, corrects the proliferation/apoptosis imbalance in PAH and cancer cells. The specificity of PAH for lung vessels may relate to the selective upregulation of DNA methyltransferases that mediate CpG methylation in PASMC (DNA MT-1A and -3B). SOD2 augmentation inactivates HIF-1α in PAH PASMC and therapy with the SOD mimetic, MnTBAP, regresses experimental PAH. In conclusion, cancer and PAH share acquired mitochondrial abnormalities that increase proliferation and inhibit apoptosis, suggesting new therapeutic targets.
Collapse
Affiliation(s)
- Stephen L Archer
- Head Department of Medicine, Queen's University Program Medical Director KGH, HD, SMOL Etherington Hall, Room 3041 94 Stuart St., Kingston, Ontario, Canada, K7L 3N6.
| |
Collapse
|
16
|
Abstract
Although gastric cancer (GC) is highly prevalent in China and is a leading cause of cancer-related death, major advances in early diagnostic and effective therapeutic strategies have not been made. GC patients are usually diagnosed at an advanced stage and the prognosis is still poor. Over the years, many efforts have been done on exploring the pathology of GC. In particular, genome-wide analysis tools have been widely used in the detection of genetic and epigenetic alterations in GC. For example, many tumor suppressor genes have been found to be aberrantly hypermethylated in GCs, and some even in gastric precancerous lesions, suggesting a role of this molecular event in early gastric tumorigenesis. In addition, accumulating evidences have demonstrated that some hypermethylated genes can be used as potential biomarkers for detection and diagnosis of GC in biopsy specimens and non-invasive body fluids. These exciting advances provide unprecedented opportunities for the development of molecular-based novel diagnostic, prognostic, and therapeutic strategies for GC. Here, we reviewed recent findings on the promoter hypermethylation of tumor suppressor genes in GC and aimed to provide better understanding of the contribution of this epigenetic event to gastric tumorigenesis.
Collapse
Affiliation(s)
- Yujun Li
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, People's Republic of China
| | - Junrong Liang
- Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, People's Republic of China
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, People's Republic of China.
| |
Collapse
|
17
|
Zhou Y, Jin G, Mi R, Dong C, Zhang J, Liu F. The methylation status of the platelet-derived growth factor-B gene promoter and its regulation of cellular proliferation following folate treatment in human glioma cells. Brain Res 2014; 1556:57-66. [PMID: 24502980 DOI: 10.1016/j.brainres.2014.01.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 01/21/2014] [Accepted: 01/28/2014] [Indexed: 12/13/2022]
Abstract
Platelet-derived growth factor-B (PDGF-B) is a growth factor that regulates cell migration, proliferation, and differentiation, and is involved in several physical and pathological processes. The overexpression of PDGF-B in glioma surgical samples revealed its effect on tumorigenesis. In this study, we determined that the expression of PDGF-B in 54 glioma samples varied among different grades and was correlated with the cell proliferation marker, Ki-67. Using pyrosequencing, we quantitatively assessed PDGF-B gene methylation levels and determined that hypomethylation promotes increased expression of PDGF-B in higher grade gliomas. Furthermore, we treated two glioma cell lines with a demethylating agent (5-aza-2'-deoxycitidine, 5-aza-dC) or a remethylating agent (folate) to alter the methylation status of PDGF-B. The epigenetic regulation of the PDGF-B gene not only modulated the expression levels of PDGF-B but also affected the cellular proliferation induced by TGFβ-Smad activity and the PDGF-B peptide itself. Our work showed the importance of the methylation status of the PDGF-B gene promoter, and suggests that the epigenetic regulation of the PDGF-B gene may serve as a potential therapeutic target for the inhibition of glioma proliferation.
Collapse
Affiliation(s)
- Yiqiang Zhou
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Guishan Jin
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Ruifang Mi
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Chengyuan Dong
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Jin Zhang
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Fusheng Liu
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China.
| |
Collapse
|
18
|
Abstract
Gastric cancer is one of the most common malignancies and remains the second leading cause of cancer-related death worldwide. Over 70% of new cases and deaths occur in developing countries. In the early years of the molecular biology revolution, cancer research mainly focuses on genetic alterations, including gastric cancer. Epigenetic mechanisms are essential for normal development and maintenance of tissue-specific gene expression patterns in mammals. Disruption of epigenetic processes can lead to altered gene function and malignant cellular transformation. Recent advancements in the rapidly evolving field of cancer epigenetics have shown extensive reprogramming of every component of the epigenetic machinery in cancer, including DNA methylation, histone modifications, nucleosome positioning, noncoding RNAs, and microRNAs. Aberrant DNA methylation in the promoter regions of gene, which leads to inactivation of tumor suppressor and other cancer-related genes in cancer cells, is the most well-defined epigenetic hallmark in gastric cancer. The advantages of gene methylation as a target for detection and diagnosis of cancer in biopsy specimens and non-invasive body fluids such as serum and gastric washes have led to many studies of application in gastric cancer. This review focuses on the most common and important phenomenon of epigenetics, DNA methylation, in gastric cancer and illustrates the impact epigenetics has had on this field.
Collapse
Key Words
- 5-hmC
- 5-hydroxymethylcytosine
- 5-mC
- 5-methylcytosine
- ADAM metallopeptidase domain 23
- ADAM metallopeptidase with thrombospondin type 1 motif, 9
- ADAM23
- ADAMTS9
- AML
- APC
- ARID1A
- AT motif-binding factor 1
- AT rich interactive domain 1A (SWI-like)
- ATBF1
- Acute myelocytic leukemia
- Adenomatosis polyposis coli
- B-cell translocation gene 4
- BCL2/adenovirus E1B 19kDa interacting protein 3
- BMP-2
- BNIP3
- BS
- BTG4
- Biomarkers
- Bisulfite sequencing
- Bone morphogenetic protein 2
- C-MET
- CACNA1G
- CACNA2D3
- CD44
- CD44 molecule (Indian blood group)
- CDH1
- CDK4
- CDK6
- CDKN1C
- CDKN2A
- CDX2
- CGI
- CHD5
- CHFR
- CKLF-like MARVEL transmembrane domain containing 3
- CMTM3
- CNS
- CRBP1
- Cadherin 1 or E-cadherin
- Calcium channel, voltage-dependent, T type, alpha 1G subunit
- Calcium channel, voltage-dependent, alpha 2/delta subunit 3
- Caudal type homeobox 2
- Central nervous system
- Checkpoint with forkhead and ring finger domains, E3 ubiquitin protein ligase
- Chromodomain helicase DNA binding protein 5
- Chromosome 2 open reading frame 40
- Clinical outcomes
- CpG islands
- Cyclin-dependent kinase 4
- Cyclin-dependent kinase 6
- Cyclin-dependent kinase inhibitor 1A
- Cyclin-dependent kinase inhibitor 1B
- Cyclin-dependent kinase inhibitor 1C
- Cyclin-dependent kinase inhibitor 2A
- Cyclin-dependent kinase inhibitor 2B
- DAB2 interacting protein
- DACT1
- DAPK
- DNA
- DNA methylatransferases
- DNA mismatch repair
- DNMT
- Dapper, antagonist of beta-catenin, homolog 1 (Xenopus laevis)
- Death-associated protein kinase
- Deoxyribose Nucleic Acid
- Dickkopf 3 homolog (Xenopus laevis)
- Dkk-3
- EBV
- ECRG4
- EDNRB
- EGCG
- ERBB4
- Endothelin receptor type B
- Epigallocatechin gallate
- Epigenetics
- Epstein–Barr Virus
- FDA
- FLNc
- Filamin C
- Food and Drug Administration
- GC
- GDNF
- GI endoscopy
- GPX3
- GRIK2
- GSTP1
- Gastric cancer
- Gene methylation
- Glutamate receptor, ionotropic, kainate 2
- Glutathione S-transferase pi 1
- Glutathione peroxidase 3 (plasma)
- H. pylori
- HACE1
- HAI-2/SPINT2
- HECT domain and ankyrin repeat containing E3 ubiquitin protein ligase 1
- HGFA
- HLTF
- HOXA1
- HOXA10
- HRAS-like suppressor
- HRASLS
- Helicase-like transcription factor
- Helicobacter pylori
- Homeobox A1
- Homeobox A10
- Homeobox D10
- HoxD10
- IGF-1
- IGF-1R
- IGFBP3
- IL-1β
- ITGA4
- Insulin-like growth factor 1 (somatomedin C)
- Insulin-like growth factor I receptor
- Insulin-like growth factor binding protein 3
- Integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor)
- Interleukin 1, beta
- KL
- KRAS
- Klotho
- LL3
- LMP2A
- LOX
- LRP1B
- Low density lipoprotein receptor-related protein 1B
- Lysyl oxidase
- MAPK
- MBPs
- MDS
- MGMT
- MINT25
- MLF1
- MLL
- MMR
- MSI
- MSP
- Matrix metallopeptidase 24 (membrane-inserted)
- Met proto-oncogene (hepatocyte growth factor receptor)
- Methyl-CpG binding proteins
- Methylation-specific PCR
- Microsatellite instability
- Myeloid leukemia factor 1
- Myeloid/lymphoid or mixed-lineage leukemia (trithorax homolog, Drosophila)
- Myeloid/lymphoid or mixed-lineage leukemia 3
- NDRG family member 2
- NDRG2
- NPR1
- NR3C1
- Natriuretic peptide receptor A/guanylate cyclase A
- Notch 1
- Nuclear receptor subfamily 3, group C, member 1 (glucocorticoid receptor)
- O-6-methylguanine-DNA methyltransferase
- PCDH10
- PCDH17
- PI3K/Akt
- PIK3CA
- PR domain containing 5
- PRDM5
- PTCH1
- Patched 1
- Phosphatidylethanolamine binding protein 1
- Protein tyrosine phosphatase, non-receptor type 6
- Protocadherin 10
- Protocadherin 17
- Q-MSP
- Quantitative methylation-specific PCR
- RAR-related orphan receptor A
- RARRES1
- RARß
- RAS/RAF/MEK/ERK
- RASSF1A
- RASSF2
- RBP1
- RKIP
- RORA
- ROS
- RUNX3
- Ras association (RalGDS/AF-6) domain family member 1
- Ras association (RalGDS/AF-6) domain family member 2
- Rb
- Retinoic acid receptor responder (tazarotene induced) 1
- Retinoic acid receptor, beta
- Retinol binding protein 1, cellular
- Runt-related transcription factor 3
- S-adenosylmethionine
- SAM
- SFRP2
- SFRP5
- SHP1
- SOCS-1
- STAT3
- SYK
- Secreted frizzled-related protein 2
- Secreted frizzled-related protein 5
- Serine peptidase inhibitor, Kunitz type, 2
- Spleen tyrosine kinase
- Suppressor of cytokine signaling 1
- TCF4
- TET
- TFPI2
- TGF-β
- TIMP metallopeptidase inhibitor 3
- TIMP3
- TNM
- TP73
- TSP1
- Thrombospondin 1
- Tissue factor pathway inhibitor 2
- Transcription factor 4
- Tumor Node Metastasis
- Tumor protein p73
- V-erb-a erythroblastic leukemia viral oncogene homolog 4
- ZFP82 zinc finger protein
- ZIC1
- ZNF545
- Zinc finger protein of the cerebellum 1
- gastrointestinal endoscopy
- glial cell derived neurotrophic factor
- hDAB2IP
- hMLH1
- hepatocyte growth factor activator
- latent membrane protein
- mutL homolog 1
- myelodysplastic syndromes
- p15
- p16
- p21
- p27
- p53
- p73
- phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha
- phosphoinositide 3-kinase (PI3K)/Akt
- reactive oxygen species
- retinoblastoma
- signal transducer and activator of transcription-3
- ten-eleven translocation
- transforming growth factor-β
- tumor protein p53
- tumor protein p73
- v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog
Collapse
Affiliation(s)
- Yiping Qu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, People's Republic of China
| | | | | |
Collapse
|
19
|
Gong Y, Guo MZ, Ye ZJ, Zhang XL, Zhao YL, Yang YS. Silence of HIN-1 expression through methylation of its gene promoter in gastric cancer. World J Gastroenterol 2011; 17:526-33. [PMID: 21274384 PMCID: PMC3027021 DOI: 10.3748/wjg.v17.i4.526] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 11/02/2010] [Accepted: 11/09/2010] [Indexed: 02/06/2023] Open
Abstract
AIM: To clarify the role of high in normal-1 (HIN-1) gene promoter methylation during gastric cancer development.
METHODS: Gastric cancer cell lines and tissue specimens were analyzed for expression of HIN-1 mRNA and protein using the semi-quantitative reverse transcription polymerase chain reaction and immunohistochemistry. The methylation of the HIN-1 gene promoter was detected in gastric carcinoma cells and tissues using methylation-specific polymerase chain reaction. The 3-(4,5-dimethylthiazol-2yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium cell viability assay and flow cytometry were used to assess the changes in behaviors of gastric cancer cells with or without 5-aza-2’-deoxycytidine treatment.
RESULTS: HIN-1 was not expressed in 4 of 5 gastric cancer cell lines. The demethylation reagent 5-aza-2’-deoxycytidine was able to induce or upregulate HIN-1 expression in gastric cancer cell lines, which is associated with reduction of tumor cell viability. Furthermore, methylation of the HIN-1 gene promoter was shown in 57.8% (26/45) of the primary gastric cancer and 42.1% (17/38) of adjacent tissue samples, but was not shown in normal gastric mucosa (0/10). From the clinicopathological data of the patients, methylation of the HIN-1 gene promoter was found to be associated with tumor differentiation (P = 0.000).
CONCLUSION: High methylation of HIN-1 gene promoter results in silence of HIN-1 expression in gastric cancer. 5-aza-2’-deoxycytidine reverses HIN-1 methylation and reduces viability of gastric cancer cells.
Collapse
|
20
|
Wang YC, Yu ZH, Liu C, Xu LZ, Yu W, Lu J, Zhu RM, Li GL, Xia XY, Wei XW, Ji HZ, Lu H, Gao Y, Gao WM, Chen LB. Detection of RASSF1A promoter hypermethylation in serum from gastric and colorectal adenocarcinoma patients. World J Gastroenterol 2008; 14:3074-80. [PMID: 18494062 PMCID: PMC2712178 DOI: 10.3748/wjg.14.3074] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the diagnostic role of serum RASSF1A promoter hypermethylation in gastric and colorectal adenocarcinoma.
METHODS: Methylation-specific polymerase chain reaction (MSPCR) was used to examine the promoter methylation status of the serum RASSF1A gene in 47 gastric adenocarcinoma patients, 45 colorectal adenocarcinoma patients, 60 patients with benign gastrointestinal disease (30 with benign gastric disease and 30 with benign colorectal disease), and 30 healthy donor controls. A paired study of RASSF1A promoter methylation status in primary tumor, adjacent normal tissue, and postoperative serum were conducted in 25 gastric and colorectal adenocarcinoma patients who later were underwent surgical therapy.
RESULTS: The frequencies of detection of serum RASSF1A promoter hypermethylation in gastric (34.0%) and colorectal (28.9%) adenocarcinoma patients were significantly higher than those in patients with benign gastric (3.3%) or colorectal (6.7%) disease or in healthy donors (0%) (P < 0.01). The methylation status of RASSF1A promoter in serum samples was consistent with that in paired primary tumors, and the MSPCR results for RASSF1A promoter methylation status in paired preoperative samples were consistent with those in postoperative serum samples. The serum RASSF1A promoter hypermethylation did not correlate with patient sex, age, tumor differentiation grade, surgical therapy, or serum carcinoembryonic antigen level. Although the serum RASSF1A promoter hypermethylation frequency tended to be higher in patients with distant metastases, there was no correlation between methylation status and metastasis.
CONCLUSION: Aberrant CpG island methylation within the promoter region of RASSF1A is a promising biomarker for gastric and colorectal cancer.
Collapse
|