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Yu KD, Chen AX, Yang C, Fan L, Huang AJ, Shao ZM. The associations between two polymorphisms in the interleukin-10 gene promoter and breast cancer risk. Breast Cancer Res Treat 2010; 131:27-31. [DOI: 10.1007/s10549-010-1133-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 08/17/2010] [Indexed: 01/04/2023]
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Kong F, Liu J, Liu Y, Song B, Wang H, Liu W. Association of interleukin-10 gene polymorphisms with breast cancer in a Chinese population. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2010; 29:72. [PMID: 20553628 PMCID: PMC2907337 DOI: 10.1186/1756-9966-29-72] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 06/17/2010] [Indexed: 01/02/2023]
Abstract
Backgroud Interleukin-10(IL-10) is a multifunctional cytokine with both immunosuppressive and antiangiogenic functions. Polymorphisms in the IL-10 gene promoter genetically determine interindividual differences in IL-10 production. This study was performed to determined whether polymorphisms in the IL-10 gene promoter were associated with breast cancer in a Chinese Han population. Methods We genotyped 315 patients with breast cancer and 322 healthy control subjects for -1082A/G, -819T/C and -592A/C single nucleotide polymorphisms in the promoter region of the IL-10 gene by polymerase chain reactionerestriction fragment length polymorphism (PCR-RFLP). Results There were no significant differences in genotype, allele, or haplotype frequencies in all three loci between patients and healthy controls. Analysis of breast cancer prognostic and predictive factors revealed that the -1082AA genotype was associated with a significantly increased risk of lymph node (LN) involvement (P = 0.041) and larger tumor size (P = 0.039) at the time of diagnosis. Furthermore, in the haplotype analysis of IL-10 gene, we found that patients carrying ATA haplotype were in higher LN involvement (p = 0.022) and higher tumor stage(p = 0.028) of breast cancer at the time of diagnosis compared with others. Conclusions Our findings suggest that IL-10 promoter polymorphisms participate in the progression of breast cancer rather than in its initial development in Chinese Han women.
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Affiliation(s)
- Fanjun Kong
- Department of Oncology, State Key Discipline of Cell Biology, Xijing Hospital, Fourth Military Medical University, 710032 Xi'an, PR China
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53
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Three polymorphisms in interleukin-1β gene and risk for breast cancer: a meta-analysis. Breast Cancer Res Treat 2010; 124:821-5. [DOI: 10.1007/s10549-010-0910-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Accepted: 04/19/2010] [Indexed: 01/01/2023]
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Analysis of common germline polymorphisms as prognostic factors in patients with lymph node-positive breast cancer. J Cancer Res Clin Oncol 2010; 136:1813-9. [PMID: 20204402 DOI: 10.1007/s00432-010-0839-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Accepted: 02/12/2010] [Indexed: 12/21/2022]
Abstract
PURPOSE Women with breast cancer that initially involves local lymph nodes have a higher risk for local recurrence or developing metastases. Recent data suggest that germline polymorphism is a significant, previously unrecognized factor in breast cancer progression and metastasis. We assessed the influence of 16 selected common germline polymorphisms in disease-free survival and overall survival among 216 women diagnosed with lymph node-positive breast cancer. RESULTS The rare allele of FAS 1377G>A was significantly associated with prolonged disease-free survival (P = 0.012, risk ratio of recurrence (RR) = 0.557, 95% confidence interval (CI) = 0.353-0.878) in univariate analysis. After adjusting for known breast cancer prognostic factors the association remained significant (P = 0.050, RR = 0.500, CI = 0.309-0.809). In overall survival analysis we found a significant association of the FAS 1377G>A (P = 0.040, RR = 0.451, CI = 0.496-1.188) and IL10 592C>A polymorphisms (P = 0.020, RR = 1.707, CI = 1.087-2.680) in the univariate Cox regression. The effect remained statistically significant in the multivariate analysis for the IL10 592C>A polymorphism (P = 0.013, RR 1.841, CI 1.140-2.973). No association was found for MTHFR 677C>T, VEGF 936C>T, CCND1 870G>A, TGFB1 29T>C, FASLG 844C>T, FAS 670A>G, GPB3 825C>T, ITGA2 807C>T, ITGA2 1648G>A, ITGB3 176T>C, MMP1 -1607 1G/2G, MMP3 5A/6A, PTGS2 8473T>C, IL10 592C>A and SULT1A1 638G>A polymorphisms and disease-free survival or overall survival. CONCLUSIONS Our data suggest that the FAS 1377G>A and IL10 592C>A polymorphisms could modify disease-free and overall survival in women with lymph node-positive breast cancer.
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Yu KD, Di GH, Fan L, Chen AX, Yang C, Shao ZM. Lack of an association between a functional polymorphism in the interleukin-6 gene promoter and breast cancer risk: a meta-analysis involving 25,703 subjects. Breast Cancer Res Treat 2009; 122:483-8. [PMID: 20043205 DOI: 10.1007/s10549-009-0706-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Accepted: 12/19/2009] [Indexed: 11/28/2022]
Abstract
The association between a single-nucleotide polymorphism (SNP) -174G > C (rs1800795) located in the IL-6 gene promoter and breast cancer risk is still controversial and ambiguous. We performed in this study a more precise estimation of the relationship by meta-analyzing the currently available evidence from literature. A total of 11 publications containing 12 studies including 10,137 cases and 15,566 controls were identified. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of association in the codominant model, dominant model, and recessive model. When all the studies were pooled into the meta-analysis, there was no evidence showing a significant association between -174G > C and breast cancer risk (for CC vs. GG: OR = 1.024, 95% CI: 0.935-1.121; for GC vs. GG: OR = 1.008, 95% CI: 0.946-1.073; for dominant model: OR = 0.980, 95% CI: 0.857-1.121; and for recessive model: OR = 1.027, 95% CI: 0.944-1.117). In the subgroup analyses by ethnicity, no significant associations were observed in any genetic models. In summary, the present meta-analysis suggests that the functional polymorphism -174G > C within the IL-6 gene promoter is not associated with breast cancer risk. Identifying a unique SNP as a breast cancer risk predictor remains a very challenging task.
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Affiliation(s)
- Ke-Da Yu
- Department of Breast Surgery, Cancer Hospital/Cancer Institute, Fudan University, 399 Ling-Ling Road, 200032, Shanghai, People's Republic of China
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Chérel M, Campion L, Bézieau S, Campone M, Charrier J, Gaschet J, Ricolleau G, Gouraud W, Charbonnel C, Jézéquel P. Molecular screening of interleukin-6 gene promoter and influence of −174G/C polymorphism on breast cancer. Cytokine 2009; 47:214-23. [DOI: 10.1016/j.cyto.2009.06.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 05/20/2009] [Accepted: 06/27/2009] [Indexed: 11/27/2022]
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Marella NV, Malyavantham KS, Wang J, Matsui SI, Liang P, Berezney R. Cytogenetic and cDNA microarray expression analysis of MCF10 human breast cancer progression cell lines. Cancer Res 2009; 69:5946-53. [PMID: 19584277 DOI: 10.1158/0008-5472.can-09-0420] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We used a combination of spectral karyotyping, array comparative genomic hybridization, and cDNA microarrays to gain insights into the structural and functional changes of the genome in the MCF10 human breast cancer progression model cell lines. Spectral karyotyping data showed several chromosomal aberrations and array comparative genomic hybridization analysis identified numerous genomic gains and losses that might be involved in the progression toward cancer. Analysis of the expression levels of genes located within these genomic regions revealed a lack of correlation between chromosomal gains and losses and corresponding up-regulation or down-regulation for the majority of the approximately 1,000 genes analyzed in this study. We conclude that other mechanisms of gene regulation that are not directly related to chromosomal gains and losses play a major role in breast cancer progression.
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Affiliation(s)
- Narasimharao V Marella
- Department of Biological Sciences, University at Buffalo, State University of New York, New York 14260, USA
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Ozgen AG, Karadeniz M, Erdogan M, Berdeli A, Saygili F, Yilmaz C. The (-174) G/C polymorphism in the interleukin-6 gene is associated with risk of papillary thyroid carcinoma in Turkish patients. J Endocrinol Invest 2009; 32:491-4. [PMID: 19494710 DOI: 10.1007/bf03346494] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Interleukins and cytokines play an important role in the pathogenesis of many cancers.We aimed to evaluate the interleukin (IL)-6 gene polymorphisms in patients with papillary thyroid carcinoma (PTC) and control subjects. MATERIAL AND METHODS In this study, 42 patients with PTC and 340 healthy controls were included. Peripheral blood samples were taken from control group and patients, and blood samples were preserved at -80 C in tubes containing Na-EDTA. RESULTS We also found a statistically significant difference between patients with PTC and the control group with respect to IL-6 genotype (p<0.05). IL-6 gene polymorphism in patients with PTC patients did not reveal statistically significant difference between the 2 groups (size of tumor >1 cm and <1 cm), multicentricity, RET-PTC types and capsule invasion (p>0.05).We also did not find a statistically significant difference between patients with PTC and the control group with respect to IL-6-gene allele frequency (p>0.05). DISCUSSION Our data suggest that the IL-6 G-174 C polymorphism could play a role in thyroid cancer risk, but there is no effective role as a prognostic factor.
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Affiliation(s)
- A G Ozgen
- Division of Internal Disease, Department of Endocrinology and Metabolism, Ege University, Bornova, Izmir, Turkey
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Gerger A, Renner W, Langsenlehner T, Hofmann G, Knechtel G, Szkandera J, Samonigg H, Krippl P, Langsenlehner U. Association of interleukin-10 gene variation with breast cancer prognosis. Breast Cancer Res Treat 2009; 119:701-5. [DOI: 10.1007/s10549-009-0417-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Accepted: 04/30/2009] [Indexed: 12/23/2022]
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Seruga B, Zhang H, Bernstein LJ, Tannock IF. Cytokines and their relationship to the symptoms and outcome of cancer. Nat Rev Cancer 2008; 8:887-99. [PMID: 18846100 DOI: 10.1038/nrc2507] [Citation(s) in RCA: 471] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tumours contain immune cells and a network of pro- and anti-inflammatory cytokines, which collaborate in the development and progression of cancer. Cytokine profiles might prove to be prognostic. The systemic effects of pro-inflammatory cytokines are associated with fatigue, depression and cognitive impairment, and can affect quality of life before, during and after treatment. In people with advanced cancer, pro-inflammatory cytokines are additionally associated with anorexia and cachexia, pain, toxicity of treatment and resistance to treatment. However, physical activity might modify cytokine levels and decrease fatigue in patients with cancer, and might also improve their prognosis.
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Affiliation(s)
- Bostjan Seruga
- Division of Medical Oncology, Princess Margaret Hospital, St. Michael's Hospital, University of Toronto, Toronto, Canada
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Collado-Hidalgo A, Bower JE, Ganz PA, Irwin MR, Cole SW. Cytokine gene polymorphisms and fatigue in breast cancer survivors: early findings. Brain Behav Immun 2008; 22:1197-200. [PMID: 18617366 PMCID: PMC2783767 DOI: 10.1016/j.bbi.2008.05.009] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2008] [Revised: 05/12/2008] [Accepted: 05/25/2008] [Indexed: 10/21/2022] Open
Abstract
Converging evidence from basic and clinical studies suggests a role for proinflammatory cytokines in cancer-related fatigue, although the etiology of elevated inflammatory processes is unclear. We examined single nucleotide polymorphisms (SNPs) in the promoters of cytokine genes as genetic risk factors for cytokine-related fatigue in 33 fatigued and 14 non-fatigued breast cancer survivors, focusing on promoter sequence polymorphisms in IL1B and IL6 associated with differential expression of proinflammatory cytokines. Predictors of fatigue included presence of at least one cytosine at IL1B -511 (95%CI=0.91-16.6, p=.007) and homozygosity for either variant of the IL6 -174 genotype (G/G or C/C; 95%CI=1.12-17.9, p=.027). Associations between fatigue status and IL1B genotype remained significant after covariate adjustment for demographic, biobehavioral and treatment-related factors. These findings provide preliminary evidence that polymorphisms in IL1B may serve as a potential risk factor for persistent fatigue in the aftermath of cancer.
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Affiliation(s)
- Alicia Collado-Hidalgo
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, USA
| | - Julienne E. Bower
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, USA,UCLA Department of Psychology, USA,UCLA Department of Psychiatry and Biobehavioral Sciences, USA,Division of Cancer Prevention and Control Research, Jonsson Comprehensive Cancer Center at UCLA, USA,Corresponding author. Address: UCLA Department of Psychiatry and Biobehavioral Sciences, 300 UCLA Medical Plaza, Room 3306, Box 957076, Los Angeles, CA 90095-7076, USA. E-mail address: (J.E. Bower)
| | - Patricia A. Ganz
- Division of Cancer Prevention and Control Research, Jonsson Comprehensive Cancer Center at UCLA, USA,UCLA Schools of Medicine and Public Health, USA
| | - Michael R. Irwin
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, USA,UCLA Department of Psychiatry and Biobehavioral Sciences, USA
| | - Steve W. Cole
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, USA,UCLA Department of Medicine, USA
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Erdogan M, Karadeniz M, Ozbek M, Ozgen AG, Berdeli A. Interleukin-10 gene polymorphism in patients with papillary thyroid cancer in Turkish population. J Endocrinol Invest 2008; 31:750-4. [PMID: 18997484 DOI: 10.1007/bf03349252] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Interleukin-10 (IL-10) is a major anti-inflammatory cytokine that plays a crucial role in the regulation of the immune system. Chronic inflammation has been reported to be a risk factor for thyroid neoplasia. The propensity to mount an inflammatory response is modified by germ line variation in cytokine and other inflammation-related genes. We hypothesized that a proinflammatory genotype would be positively associated with thyroid cancer. We aimed to evaluate the relation between the genotypic and allelic frequencies of the IL-10(-1082 G/A), IL-10(-592 A/C), and IL-10(-819 C/T) polymorphisms, and their association with the risk of developing papillary thyroid cancer (PTC) in the Turkish population. RESEARCH DESIGN AND METHODS Forty-two patients with PTC and 113 healthy controls were included in this study. The diagnosis of PTC was confirmed by histopathologic examination after surgery. The evaluation of genotype for IL-10 gene polymorphism was performed using PCR-restriction fragment length polymorphism method. RESULTS Statistically significant difference IL-10(-1082 G/A) gene polymorphism was determined between 2 (PTC and control) groups. No difference was determined with respect to IL-10(-592 A/C) and IL-10(-819 C/T) gene polymorphisms, and IL-10(-1082 G/A), IL-10(-592 A/C), and IL-10(-819 C/T) allele frequencies of participating between the control group and the patients with PTC (p>0.05). CONCLUSIONS The polymorphism of IL-10(-1082 G/A) gene was significantly associated with the occurrence of PTC. Such studies will contribute significantly to our understanding of the biological role of IL-10(-1082 G/A) gene polymorphism in PTC development. In conclusion, IL-10(-1082 G/A) gene polymorphism may affect the survival of papillary thyroid carcinoma.
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Affiliation(s)
- M Erdogan
- Department of Endocrinology and Metabolism Disease, Ege University Medical School, Bornova, Izmir, Turkey.
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63
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Associations of circulating C-reactive protein and interleukin-6 with cancer risk: findings from two prospective cohorts and a meta-analysis. Cancer Causes Control 2008; 20:15-26. [PMID: 18704713 DOI: 10.1007/s10552-008-9212-z] [Citation(s) in RCA: 233] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Accepted: 07/12/2008] [Indexed: 12/19/2022]
Abstract
OBJECTIVE We investigated the associations of circulating C-reactive protein (CRP) and interleukin-6 (IL-6) with cancer risk. METHODS We examined the associations of CRP and IL-6 with incident cancer in two prospective cohorts, the British Women's Heart and Health Study (4,286 women aged 60-80) and the Caerphilly Cohort (2,398 men aged 45-59) using Cox regression and pooled our findings with previous prospective studies' in fixed and random effects meta-analyses. RESULTS CRP and IL-6 were associated with some incident cancers in our cohorts, but the numbers of cancer cases were small. In our meta-analyses elevated CRP was associated with an increased overall risk of cancer (random effects estimate (RE): 1.10, 95% CI: 1.02, 1.18) and lung cancer (RE: 1.32, 95% CI: 1.08, 1.61). Its associations with colorectal (RE: 1.09, 95% CI: 0.98, 1.21) and breast cancer risks (RE: 1.10, 95% CI: 0.97, 1.26) were weaker. CRP appeared unrelated to prostate cancer risk (RE: 1.00 0.88, 1.13). IL-6 was associated with increased lung and breast cancer risks and decreased prostate cancer risk, and was unrelated to colorectal cancer risk. CONCLUSIONS Our findings suggest an etiological role for CRP and IL-6 in some cancers. Further large prospective and genetic studies would help to better understand this role.
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Heikkilä K, Ebrahim S, Lawlor DA. Systematic review of the association between circulating interleukin-6 (IL-6) and cancer. Eur J Cancer 2008; 44:937-45. [PMID: 18387296 DOI: 10.1016/j.ejca.2008.02.047] [Citation(s) in RCA: 169] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 02/29/2008] [Accepted: 02/29/2008] [Indexed: 12/20/2022]
Abstract
Our aim was to systematically review the epidemiologic evidence for an association of circulating interleukin-6 (IL-6), an inflammatory cytokine and cancer. We systematically searched electronic databases Embase, Medline and Web of Science for the studies of circulating IL-6 and any form of cancer. We identified and reviewed 189 discrete studies, consisting of 177 prevalent studies and three prospective studies. Cancer patients' IL-6 concentrations were higher than healthy controls' in most studies, but the results of investigations comparing IL-6 in cancer patients and individuals with benign diseases were less consistent. Due to the small number of prospective studies it is impossible to determine whether IL-6 is causally related to cancer. Large prospective studies of circulating IL-6 or studies using the functional variants of the IL-6 gene as instruments for circulating IL-6 concentrations would provide information on possible aetiological links between IL-6 and malignancy.
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Yan B, Chen G, Saigal K, Yang X, Jensen ST, Van Waes C, Stoeckert CJ, Chen Z. Systems biology-defined NF-kappaB regulons, interacting signal pathways and networks are implicated in the malignant phenotype of head and neck cancer cell lines differing in p53 status. Genome Biol 2008; 9:R53. [PMID: 18334025 PMCID: PMC2397505 DOI: 10.1186/gb-2008-9-3-r53] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Revised: 01/28/2008] [Accepted: 03/11/2008] [Indexed: 02/28/2023] Open
Abstract
BACKGROUND Aberrant activation of the nuclear factor kappaB (NF-kappaB) pathway has been previously implicated as a crucial signal promoting tumorigenesis. However, how NF-kappaB acts as a key regulatory node to modulate global gene expression, and contributes to the malignant heterogeneity of head and neck cancer, is not well understood. RESULTS To address this question, we used a newly developed computational strategy, COGRIM (Clustering Of Gene Regulons using Integrated Modeling), to identify NF-kappaB regulons (a set of genes under regulation of the same transcription factor) for 1,265 genes differentially expressed by head and neck cancer cell lines differing in p53 status. There were 748 NF-kappaB targets predicted and individually annotated for RELA, NFkappaB1 or cREL regulation, and a prevalence of RELA related genes was observed in over-expressed clusters in a tumor subset. Using Ingenuity Pathway Analysis, the NF-kappaB targets were reverse-engineered into annotated signature networks and pathways, revealing relationships broadly altered in cancer lines (activated proinflammatory and down-regulated Wnt/beta-catenin and transforming growth factor-beta pathways), or specifically defective in cancer subsets (growth factors, cytokines, integrins, receptors and intermediate kinases). Representatives of predicted NF-kappaB target genes were experimentally validated through modulation by tumor necrosis factor-alpha or small interfering RNA for RELA or NFkappaB1. CONCLUSION NF-kappaB globally regulates diverse gene programs that are organized in signal networks and pathways differing in cancer subsets with distinct p53 status. The concerted alterations in gene expression patterns reflect cross-talk among NF-kappaB and other pathways, which may provide a basis for molecular classifications and targeted therapeutics for heterogeneous subsets of head and neck or other cancers.
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Affiliation(s)
- Bin Yan
- Head and Neck Surgery Branch, NIDCD, National Institutes of Health, Bethesda, MD 20892, USA.
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Upadhyay R, Jain M, Kumar S, Ghoshal UC, Mittal B. Potential influence of interleukin-1 haplotype IL-1β-511*T-IL-1RN*1 in conferring low risk to middle third location of esophageal cancer: A case–control study. Hum Immunol 2008; 69:179-86. [DOI: 10.1016/j.humimm.2008.01.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Revised: 01/19/2008] [Accepted: 01/24/2008] [Indexed: 01/22/2023]
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Sigurdson AJ, Bhatti P, Doody MM, Hauptmann M, Bowen L, Simon SL, Weinstock RM, Linet MS, Rosenstein M, Stovall M, Alexander BH, Preston DL, Struewing JP, Rajaraman P. Polymorphisms in apoptosis- and proliferation-related genes, ionizing radiation exposure, and risk of breast cancer among U.S. Radiologic Technologists. Cancer Epidemiol Biomarkers Prev 2008; 16:2000-7. [PMID: 17932347 DOI: 10.1158/1055-9965.epi-07-0282] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Although genes involved in apoptosis pathways and DNA repair pathways are both essential for maintaining genomic integrity, genetic variants in DNA repair have been thought to increase susceptibility to radiation carcinogenesis, but similar hypotheses have not generally been raised about apoptosis genes. For this reason, potential modification of the relationship between ionizing radiation exposure and breast cancer risk by polymorphic apoptosis gene variants have not been investigated among radiation-exposed women. METHODS In a case-control study of 859 cases and 1,083 controls within the U.S. Radiologic Technologists cohort, we assessed breast cancer risk with respect to 16 candidate variants in eight genes involved in apoptosis, inflammation, and proliferation. Using carefully reconstructed cumulative breast dose estimates from occupational and personal diagnostic ionizing radiation, we also investigated the joint effects of these polymorphisms on the risk of breast cancer. RESULTS In multivariate analyses, we observed a significantly decreased risk of breast cancer associated with the homozygous minor allele of CASP8 D302H [rs1045485, odds ratio (OR), 0.3; 95% confidence interval (95% CI), 0.1-0.8]. We found a significantly increased breast cancer risk with increasing minor alleles for IL1A A114S (rs17561); heterozygote OR 1.2 (95% CI, 1.0-1.4) and homozygote OR 1.5 (95% CI, 1.1-2.0), P(trend) = 0.008. Assuming a dominant genetic model, IL1A A114S significantly modified the dose-response relationship between cumulative personal diagnostic radiation and breast cancer risk, adjusted for occupational dose (P(interaction) = 0.004). CONCLUSION The U.S. Radiologic Technologists breast cancer study provided a unique opportunity to examine the joint effects of common genetic variation and ionizing radiation exposure to the breast using detailed occupational and personal diagnostic dose data. We found evidence of effect modification of the radiation and breast cancer dose-response relationship that should be confirmed in studies with more cases and controls and quantified radiation breast doses in the low-to-moderate range.
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Affiliation(s)
- Alice J Sigurdson
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, 6120 Executive Boulevard, EPS 7092, MSC 7238, Bethesda, MD 20892-7238, USA.
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Zabaleta J, Schneider BG, Ryckman K, Hooper PF, Camargo MC, Piazuelo MB, Sierra RA, Fontham ETH, Correa P, Williams SM, Ochoa AC. Ethnic differences in cytokine gene polymorphisms: potential implications for cancer development. Cancer Immunol Immunother 2008; 57:107-14. [PMID: 17618436 PMCID: PMC11031046 DOI: 10.1007/s00262-007-0358-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Accepted: 06/13/2007] [Indexed: 12/23/2022]
Abstract
Differences in incidence and outcome of cancer among ethnic groups may be explained by biological and/or socio-economic factors. Genetic variations that affect chronic inflammation, a potentially important risk factor for carcinogenesis, may differ across ethnic groups. Such differences may help explain cancer disparities among these groups. Single nucleotide polymorphisms (SNPs) within cytokine genes can affect cytokine levels and the degree of inflammation. Associations between cancer and some cytokine SNPs have been suggested. However, these have not been consistently replicated among populations, suggesting that SNP function may differ according to ethnicity, or that SNPs alone do not completely account for regulation of inflammation. We examined seven polymorphisms in African-American (n = 294) and Caucasian (n = 299) newborns in Louisiana: IL1B-511C > T, IL1B-31T > C, IL1B + 3954C > T, IL1RN*2, IL10-1082G > A, IL10-592C > A, and TNF-308G > A. African-American newborns had significantly higher frequencies of IL1B-511T, IL1B-31C, IL10-1082A and IL10-592A alleles and complete linkage equilibrium between IL1B + 3954 and IL1B-31. In contrast, IL1B + 3954T, IL1RN*2, and TNF-308A were more frequent in Caucasian newborns and exhibited strong linkage disequilibrium between IL1B + 3954 and IL1B-31. All allelic frequencies were significantly different between groups. We hypothesize that these dissimilarities may contribute to differences in the inflammatory response and cancer incidence and mortality between African-Americans and Caucasians in Louisiana.
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Affiliation(s)
- Jovanny Zabaleta
- Stanley S. Scott Cancer Center, LSUHSC, New Orleans, LA USA
- 533 Bolivar St, CSRB 455, New Orleans, LA 70112 USA
| | | | - Kelli Ryckman
- Center for Human Genetic Research, Vanderbilt University School of Medicine, Nashville, TN USA
| | - Pleasant F. Hooper
- Biochemical Genetics Laboratory, Louisiana Office of Public Health, New Orleans, LA USA
- Present Address: Therapeutic Monitoring Services, L.L.C, New Orleans, LA USA
| | | | | | - Rosa A. Sierra
- Stanley S. Scott Cancer Center, LSUHSC, New Orleans, LA USA
| | | | - Pelayo Correa
- Division of Gastroenterology, Vanderbilt University, Nashville, TN USA
| | - Scott M. Williams
- Center for Human Genetic Research, Vanderbilt University School of Medicine, Nashville, TN USA
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Walker LC, Waddell N, Ten Haaf A, Grimmond S, Spurdle AB. Use of expression data and the CGEMS genome-wide breast cancer association study to identify genes that may modify risk in BRCA1/2 mutation carriers. Breast Cancer Res Treat 2007; 112:229-36. [PMID: 18095154 DOI: 10.1007/s10549-007-9848-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Accepted: 11/30/2007] [Indexed: 01/31/2023]
Abstract
Germline mutations in BRCA1 or BRCA2 confer an increased lifetime risk of developing breast or ovarian cancer, but variable penetrance suggests that cancer susceptibility is influenced in part by modifier genes. Microarray expression profiling was conducted for 69 irradiated lymphoblastoid cell lines derived from healthy controls, or from cancer-affected women with a strong family history of breast and ovarian cancer carrying pathogenic mutations in BRCA1 or BRCA2, or with no BRCA1/2 mutations (BRCAX). Genes discriminating between BRCA1, BRCA2 or BRCAX and controls were stratified based on irradiation response and/or cell cycle involvement. Gene lists were aligned against genes tagged with single nucleotide polymorphisms (SNPs) determined by the Cancer Genetic Markers of Susceptibility (CGEMS) Breast Cancer Whole Genome Association Scan to be nominally associated with breast cancer risk. Irradiation responsive genes whose expression correlated with BRCA1 and/or BRCA2 mutation status were more likely to be tagged by risk-associated SNPs in the CGEMS dataset (BRCA1, P = 0.0005; BRCA2, P = 0.01). In contrast, irradiation responsive genes correlating with BRCAX status were not enriched in the CGEMS dataset. Classification of expression data by involvement in cell cycle processes did not enrich for genes tagged by risk-associated SNPs, for BRCA1, BRCA2 or BRCAX groups. Using a novel combinatorial approach, we have identified a subset of irradiation responsive genes as high priority candidate BRCA1/2 modifier genes. Similar approaches may be used to identify genes and underlying genetic risk factors that interact with exogenous stimulants to cause or modify any disease, without a priori knowledge of the pathways involved.
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Affiliation(s)
- Logan C Walker
- Queensland Institute of Medical Research, PO Royal Brisbane Hospital, Brisbane, QLD, Australia
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