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Mohammed Bakheet M, Mohssin Ali H, Jalil Talab T. Evaluation of some proinflammatory cytokines and biochemical parameters in pre and postmenopausal breast cancer women. Cytokine 2024; 179:156632. [PMID: 38701734 DOI: 10.1016/j.cyto.2024.156632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/08/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
The study was planned to evaluate the differences in certain proinflammatory cytokines(IL-6, TNF-α) with CRP and biochemical parameters (E2, D3, LDH, GGT, TSB, Ca, Ph, uric acid), between women with pre- and postmenopausal breast cancer and seemingly healthy women in Iraqi women as controls; at medical city in teaching Oncology hospital,70 breast cancer patients women their ages ranged (47.51 ± 1.18) and 20 healthy women with age (44.45 ± 2.66) begun from September (2020) to February (2021). The aims of this study to investigate the evaluation of chemotherapy effects especially doxorubicin and cyclophosphamide only use in this study in pre and postmenopausal breast cancer women on proinflammatory cytokines(IL-6, TNF-α) with CRP and on biochemical parameters(E2, D3, LDH, GGT, TSB, Ca, Ph, uric acid) in pre and postmenapausal breast cancer women. The patients were divided into five groups and each group contains 14 patients women with breast cancer during pre and postmenopausal periods. The control groups were divided into 10 pre and 10 postmenopausal women(Fig. 1). The results of proinflammatory cytokines of and biochemical parameters in premenopausal groups were as the levels of IL-6 (pg/ml),TNF-α(pg/ml) and CRP (ng/ml) showed significant increase differences (P < 0.01)among breast cancer treated (BCT) groups in comparison with control groups,While the Liver enzymes GGT,LDH and TSB showed highly significant increase (P < 0.01) in BCT groups, Estrogen levels (pg/ml) and D3(ng/ml) increased significantly (P < 0.01)among BCT groups. Blood serum calcium and phosphorus with uric acid levels (mg/dl) showed significant difference (P < 0.01); While the result in postmenopausal of IL-6(pg/ml), TNF-α (pg/ml) and CRP (ng/ml) showed highly significant differences (P < 0.01)among BCT groups.While GGT(IU/L), LDH(IU/L) and TSB (mg/dl) enzymes were increased significantly (p < 0.01), Estrogen (pg/ml) and D3(ng/ml) levels showed significant increase (P < 0.01) among BCT groups.Blood calcium and phosphorus showed significant increase (P < 0.01) while uric acid was non-significant increase (P > 0.05).
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Affiliation(s)
| | - Hiba Mohssin Ali
- Department of Biology, College of Science, Mustansiriyah University, Bagdad, Iraq.
| | - Tabarak Jalil Talab
- Department of Biology, College of Science, Mustansiriyah University, Bagdad, Iraq.
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McClellan JC, Li JL, Gao G, Huo D. Expression- and splicing-based multi-tissue transcriptome-wide association studies identified multiple genes for breast cancer by estrogen-receptor status. Breast Cancer Res 2024; 26:51. [PMID: 38515142 PMCID: PMC10958972 DOI: 10.1186/s13058-024-01809-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 03/14/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Although several transcriptome-wide association studies (TWASs) have been performed to identify genes associated with overall breast cancer (BC) risk, only a few TWAS have explored the differences in estrogen receptor-positive (ER+) and estrogen receptor-negative (ER-) breast cancer. Additionally, these studies were based on gene expression prediction models trained primarily in breast tissue, and they did not account for alternative splicing of genes. METHODS In this study, we utilized two approaches to perform multi-tissue TWASs of breast cancer by ER subtype: (1) an expression-based TWAS that combined TWAS signals for each gene across multiple tissues and (2) a splicing-based TWAS that combined TWAS signals of all excised introns for each gene across tissues. To perform this TWAS, we utilized summary statistics for ER + BC from the Breast Cancer Association Consortium (BCAC) and for ER- BC from a meta-analysis of BCAC and the Consortium of Investigators of Modifiers of BRCA1 and BRCA2 (CIMBA). RESULTS In total, we identified 230 genes in 86 loci that were associated with ER + BC and 66 genes in 29 loci that were associated with ER- BC at a Bonferroni threshold of significance. Of these genes, 2 genes associated with ER + BC at the 1q21.1 locus were located at least 1 Mb from published GWAS hits. For several well-studied tumor suppressor genes such as TP53 and CHEK2 which have historically been thought to impact BC risk through rare, penetrant mutations, we discovered that common variants, which modulate gene expression, may additionally contribute to ER + or ER- etiology. CONCLUSIONS Our study comprehensively examined how differences in common variation contribute to molecular differences between ER + and ER- BC and introduces a novel, splicing-based framework that can be used in future TWAS studies.
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Affiliation(s)
- Julian C McClellan
- Department of Public Health Sciences, University of Chicago, Chicago, IL, 60637, USA
| | - James L Li
- Department of Public Health Sciences, University of Chicago, Chicago, IL, 60637, USA
| | - Guimin Gao
- Department of Public Health Sciences, University of Chicago, Chicago, IL, 60637, USA.
| | - Dezheng Huo
- Department of Public Health Sciences, University of Chicago, Chicago, IL, 60637, USA.
- Section of Hematology & Oncology, Department of Medicine, University of Chicago, Chicago, IL, 60637, USA.
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Hurson AN, Ahearn TU, Koka H, Jenkins BD, Harris AR, Roberts S, Fan S, Franklin J, Butera G, Keeman R, Jung AY, Middha P, Gierach GL, Yang XR, Chang-Claude J, Tamimi RM, Troester MA, Bandera EV, Abubakar M, Schmidt MK, Garcia-Closas M. Risk factors for breast cancer subtypes by race and ethnicity: A scoping review of the literature. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.03.18.24304210. [PMID: 39108508 PMCID: PMC11302715 DOI: 10.1101/2024.03.18.24304210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Background Breast cancer is comprised of distinct molecular subtypes. Studies have reported differences in risk factor associations with breast cancer subtypes, especially by tumor estrogen receptor (ER) status, but their consistency across racial and ethnic populations has not been comprehensively evaluated. Methods We conducted a qualitative, scoping literature review using the Preferred Reporting Items for Systematic Reviews and Meta-analysis, extension for Scoping Reviews to investigate consistencies in associations between 18 breast cancer risk factors (reproductive, anthropometric, lifestyle, and medical history) and risk of ER-defined subtypes in women who self-identify as Asian, Black or African American, Hispanic or Latina, or White. We reviewed publications between January 1, 1990 and July 1, 2022. Etiologic heterogeneity evidence (convincing, suggestive, none, or inconclusive) was determined by expert consensus. Results Publications per risk factor ranged from 14 (benign breast disease history) to 66 (parity). Publications were most abundant for White women, followed by Asian, Black or African American, and Hispanic or Latina women. Etiologic heterogeneity evidence was strongest for parity, followed by age at first birth, post-menopausal BMI, oral contraceptive use, and estrogen-only and combined menopausal hormone therapy. Evidence was limited for other risk factors. Findings were consistent across racial and ethnic groups, although the strength of evidence varied. Conclusion The literature supports etiologic heterogeneity by ER for some established risk factors that are consistent across race and ethnicity groups. However, in non-White populations evidence is limited. Larger, more comparable data in diverse populations is needed to better characterize breast cancer etiologic heterogeneity.
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Affiliation(s)
- Amber N Hurson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Hela Koka
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Brittany D Jenkins
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Alexandra R Harris
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Sylvia Roberts
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Sharon Fan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Jamirra Franklin
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Gisela Butera
- National Institutes of Health Library, Office of Research Services, National Institutes of Health, Bethesda, MD, USA
| | - Renske Keeman
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Audrey Y Jung
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Pooja Middha
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Gretchen L Gierach
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Xiaohong R Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rulla M Tamimi
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, USA
| | - Melissa A Troester
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Elisa V Bandera
- Section of Cancer Epidemiology and Health Outcomes, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Mustapha Abubakar
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Marjanka K Schmidt
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Montserrat Garcia-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, UK
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Wang L, Zheng YB, Yin S, Li KP, Wang JH, Bao EH, Zhu PY. Causal relationship between gut microbiota and prostate cancer contributes to the gut-prostate axis: insights from a Mendelian randomization study. Discov Oncol 2024; 15:58. [PMID: 38431915 PMCID: PMC10909808 DOI: 10.1007/s12672-024-00925-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/01/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Changes in gut microbiota abundance have been linked to prostate cancer development. However, the causality of the gut-prostate axis remains unclear. METHODS The genome-wide association study (GWAS) data for gut microbiota sourced from MiBioGen (n = 14,306), alongside prostate cancer summary data from PRACTICAL (n = 140,254) and FinnGen Consortium (n = 133,164). Inverse-variance-weighted (IVW) was mainly used to compute odds ratios (OR) and 95% confidence intervals (Cl), after diligently scrutinizing potential sources of heterogeneity and horizontal pleiotropy via the rigorous utilization of Cochran's Q test, the MR-PRESSO method, and MR-Egger. We used meta-analysis methods in random effects to combine the Mendelian randomization (MR) estimates from the two sources. RESULTS The pooled analyses of MR results show that genus Eubacterium fissicatena (OR = 1.07, 95% CI 1.01 to 1.13, P = 0.011) and genus Odoribacter (OR = 1.14, 95% CI 1.01 to 1.27, P = 0.025) were positively associated with prostate cancer. However, genus Adlercreutzia (OR = 0.89, 95% CI 0.83 to 0.96, P = 0.002), Roseburia (OR = 0.90, 95% CI 0.83 to 0.99, P = 0.03), Holdemania (OR = 0.92, 95% CI 0.86 to 0.97, P = 0.005), Flavonifractor (OR = 0.85, 95% CI 0.74 to 0.98, P = 0.024) and Allisonella (OR = 0.93, 95% CI 0.89 to 0.98, P = 0.011) seems to be a protective factor for prostate cancer. Sensitivity analysis found no significant heterogeneity, horizontal pleiotropy, or reverse causal links in all causal associations. CONCLUSION This MR study lends support to a causal relationship between genetically predicted gut microbiota and prostate cancer. Research on the gut-prostate axis, along with further multi-omics analyses, holds significant implications for the prevention and treatment of prostate cancer.
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Affiliation(s)
- Li Wang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yong-Bo Zheng
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Shan Yin
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Kun-Peng Li
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Jia-Hao Wang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Er-Hao Bao
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Ping-Yu Zhu
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.
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Riseberg E, Wu Y, Lam WC, Eliassen AH, Wang M, Zhang X, Willett WC, Smith-Warner SA. Lifetime dairy product consumption and breast cancer risk: a prospective cohort study by tumor subtypes. Am J Clin Nutr 2024; 119:302-313. [PMID: 38042408 PMCID: PMC10884601 DOI: 10.1016/j.ajcnut.2023.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND Previous literature on dairy products and risk of breast cancer is inconsistent, and the relationship may depend on the life-period of dietary assessment. OBJECTIVE We examined dairy consumption from adolescence through later adulthood and incidence of breast cancer by menopausal status and tumor molecular subtypes in the Nurses' Health Study (NHS), a prospective cohort study. METHODS We analyzed data from 63,847 females in the NHS collected from 1980 to 2018. Average intake of dairy products during adulthood was assessed by validated semiquantitative food frequency questionnaires throughout follow-up. Participants recalled adolescent dietary intake in 1986. Multivariable Cox proportional hazards models were used to estimate hazard ratios (HRs) relating dairy product consumption to breast cancer risk overall, by menopausal status, and by subtypes. RESULTS We documented 5733 incident cases of invasive breast cancer during 32 y of follow-up (n = 5298 postmenopausal). Lifetime, adolescent, adulthood, and postmenopausal total dairy and milk intakes were not associated with overall breast cancer risk (nonsignificant HRs comparing highest with lowest quintile range = 0.97-1.08), although there was a suggestive positive association between adolescent milk intake and breast cancer risk (HR: 1.09; 95% CI: 1.00, 1.18). Higher lifetime and premenopausal cheese intakes were associated with modestly lower risks of breast cancer (comparing highest with lowest quintile, HR for lifetime cheese intake: 0.90; 95% CI: 0.82, 0.98; HR for premenopausal cheese intake: 0.89; 95% CI: 0.79, 1.00). Results varied by tumor subtype and some evidence for heterogeneity was observed for an association between premenopausal milk intake and breast cancer (HR for estrogen receptor [ER]-positive: 0.84; 95% CI: 0.72, 0.99; ER-negative: 1.36; 95% CI: 1.00, 1.84; P heterogeneity = 0.04). CONCLUSIONS These findings suggest that overall dairy consumption was not associated with risk of breast cancer. However, heterogeneity was observed for type of dairy food, period of life, and tumor subtypes.
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Affiliation(s)
- Emily Riseberg
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - You Wu
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Institute for Hospital Management, School of Medicine, Tsinghua University, Beijing, China; Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States.
| | - Wai Ching Lam
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - A Heather Eliassen
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Molin Wang
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Xuehong Zhang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Walter C Willett
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Stephanie A Smith-Warner
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States
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Li PC, Zhu YF, Cao WM, Li B. ER-positive and BRCA2-mutated breast cancer: a literature review. Eur J Med Res 2024; 29:30. [PMID: 38184581 PMCID: PMC10770892 DOI: 10.1186/s40001-023-01618-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/24/2023] [Indexed: 01/08/2024] Open
Abstract
BRCA2-mutated carriers have a high lifetime risk of breast cancer (BC), an early age of onset, and an increased risk of other cancers (including ovarian, pancreatic, and prostate cancer). Almost 70-80% of BRCA2-mutated BC are estrogen receptor (ER)-positive, which is a particular type of ER-positive BC that differs from sporadic ER-positive BC. This article reviews the clinicopathological features, treatment, and prognosis of ER-positive and BRCA2-mutated BC to provide a reference for clinical decision-making.
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Affiliation(s)
- Pu-Chun Li
- Postgraduate Training Base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, 310022, China
- Department of Breast Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Yi-Fan Zhu
- Postgraduate Training Base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, 310022, China
- Department of Breast Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Wen-Ming Cao
- Department of Breast Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, 310022, China.
| | - Bei Li
- Department of Geriatric, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, 310006, China.
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Kay JE, Brody JG, Schwarzman M, Rudel RA. Application of the Key Characteristics Framework to Identify Potential Breast Carcinogens Using Publicly Available in Vivo, in Vitro, and in Silico Data. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:17002. [PMID: 38197648 PMCID: PMC10777819 DOI: 10.1289/ehp13233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Chemicals that induce mammary tumors in rodents or activate estrogen or progesterone signaling are likely to increase breast cancer (BC) risk. Identifying chemicals with these activities can prompt steps to protect human health. OBJECTIVES We compiled data on rodent tumors, endocrine activity, and genotoxicity to assess the key characteristics (KCs) of rodent mammary carcinogens (MCs), and to identify other chemicals that exhibit these effects and may therefore increase BC risk. METHODS Using authoritative databases, including International Agency for Research on Cancer (IARC) Monographs and the US Environmental Protection's (EPA) ToxCast, we selected chemicals that induce mammary tumors in rodents, stimulate estradiol or progesterone synthesis, or activate the estrogen receptor (ER) in vitro. We classified these chemicals by their genotoxicity and strength of endocrine activity and calculated the overrepresentation (enrichment) of these KCs among MCs. Finally, we evaluated whether these KCs predict whether a chemical is likely to induce mammary tumors. RESULTS We identified 279 MCs and an additional 642 chemicals that stimulate estrogen or progesterone signaling. MCs were significantly enriched for steroidogenicity, ER agonism, and genotoxicity, supporting the use of these KCs to predict whether a chemical is likely to induce rodent mammary tumors and, by inference, increase BC risk. More MCs were steroidogens than ER agonists, and many increased both estradiol and progesterone. Enrichment among MCs was greater for strong endocrine activity vs. weak or inactive, with a significant trend. DISCUSSION We identified hundreds of compounds that have biological activities that could increase BC risk and demonstrated that these activities are enriched among MCs. We argue that many of these should not be considered low hazard without investigating their ability to affect the breast, and chemicals with the strongest evidence can be targeted for exposure reduction. We describe ways to strengthen hazard identification, including improved assessments for mammary effects, developing assays for more KCs, and more comprehensive chemical testing. https://doi.org/10.1289/EHP13233.
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Affiliation(s)
| | | | - Megan Schwarzman
- School of Public Health, University of California, Berkeley, Berkeley, California, USA
- Family and Community Medicine, University of California, San Francisco, San Francisco, California, USA
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Carroll R, Ish JL, Sandler DP, White AJ, Zhao S. Understanding the role of environmental and socioeconomic factors in the geographic variation of breast cancer risk in the US-wide Sister Study. ENVIRONMENTAL RESEARCH 2023; 239:117349. [PMID: 37821066 PMCID: PMC10841999 DOI: 10.1016/j.envres.2023.117349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVE To describe the geographic pattern of breast cancer incidence in a nationwide prospective cohort and investigate whether environmental exposures and/or neighborhood socioeconomic status explain observed geographic disparities. METHODS Using accelerated failure time models with a spatial random effect term, we mapped the health region-level association between residential location and breast cancer incidence for 44,707 participants in the Sister Study after controlling for established individual-level breast cancer risk factors. We performed a variable selection process to select environmental exposures [i.e., ambient nitrogen dioxide (NO2) and fine particulate matter (PM2.5), PM2.5 chemical composition, outdoor light at night (LAN), ambient noise, ultraviolet radiation, and greenspace] and neighborhood-level factors [i.e., population density and area deprivation index (ADI)] that predicted breast cancer incidence and quantified the spatial variation explained by the selected factors. We also considered whether the geographic pattern and predictors were similar when restricting to estrogen receptor-positive (ER+) tumors. RESULTS We observed a spatial patterning in the incidence of overall breast cancer (Moran's I = 16.7, p < 0.05) and ER+ breast cancer (Moran's I = 13.2, p < 0.05), with a lower risk observed in the South and Southeast and a greater risk in the Northwest and certain areas of the Midwest and Northeast. NO2, LAN, and ADI explained 21.4% of the spatial variation in overall breast cancer incidence whereas NO2, PM2.5 chemical composition, LAN, greenspace, and ADI together explained 63.3% of the spatial variation in ER+ breast cancer incidence. CONCLUSIONS Our findings provide additional evidence for a role of environmental exposures in breast cancer incidence and suggest that geographic-based risk factors may vary according to breast cancer subtype. Our findings support the need for additional research to quantify the relative contributions of geographic-based risk factors for breast cancer.
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Affiliation(s)
- Rachel Carroll
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, 111 TW Alexander Dr, Durham, NC, 27709, USA; Human Services Division, American Institutes for Research, 400 Crystal Drive 10th Floor, Arlington, VA, 22202, USA
| | - Jennifer L Ish
- Epidemiology Branch, National Institute of Environmental Health Sciences, 111 TW Alexander Dr, Durham, NC, 27709, USA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, 111 TW Alexander Dr, Durham, NC, 27709, USA
| | - Alexandra J White
- Epidemiology Branch, National Institute of Environmental Health Sciences, 111 TW Alexander Dr, Durham, NC, 27709, USA.
| | - Shanshan Zhao
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, 111 TW Alexander Dr, Durham, NC, 27709, USA
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Al-Shami K, Awadi S, Khamees A, Alsheikh AM, Al-Sharif S, Ala’ Bereshy R, Al-Eitan SF, Banikhaled SH, Al-Qudimat AR, Al-Zoubi RM, Al Zoubi MS. Estrogens and the risk of breast cancer: A narrative review of literature. Heliyon 2023; 9:e20224. [PMID: 37809638 PMCID: PMC10559995 DOI: 10.1016/j.heliyon.2023.e20224] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023] Open
Abstract
In female mammals, the development and regulation of the reproductive system and non-reproductive system are significantly influenced by estrogens (oestrogens). In addition, lipid metabolism is another physiological role of estrogens. Estrogens act through different types of receptors to introduce signals to the target cell by affecting many estrogen response elements. Breast cancer is considered mostly a hormone-dependent disease. Approximately 70% of breast cancers express progesterone receptors and/or estrogen receptors, and they are a good marker for cancer prognosis. This review will discuss estrogen metabolism and the interaction of estrogen metabolites with breast cancer. The carcinogenic role of estrogen is discussed in light of both conventional and atypical cancers susceptible to hormones, such as prostate, endometrial, and lung cancer, as we examine how estrogen contributes to the formation and activation of breast cancer. In addition, this review will discuss other factors that can be associated with estrogen-driven breast cancer.
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Affiliation(s)
- Khayry Al-Shami
- Faculty of Medicine, Yarmouk University, P.O Box 566, 21163, Irbid, Jordan
| | - Sajeda Awadi
- Faculty of Medicine, Yarmouk University, P.O Box 566, 21163, Irbid, Jordan
| | - Almu'atasim Khamees
- Faculty of Medicine, Yarmouk University, P.O Box 566, 21163, Irbid, Jordan
- Department of General Surgery, King Hussein Cancer Center, Amman, 11941, Jordan
| | | | - Sumaiya Al-Sharif
- Faculty of Medicine, Yarmouk University, P.O Box 566, 21163, Irbid, Jordan
| | | | - Sharaf F. Al-Eitan
- Faculty of Medicine, Yarmouk University, P.O Box 566, 21163, Irbid, Jordan
| | | | - Ahmad R. Al-Qudimat
- Department of Public Health, College of Health Sciences, QU-Health, Qatar University, Doha, 2713, Qatar
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Raed M. Al-Zoubi
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar
- Department of Biomedical Sciences, College of Health Sciences, QU-Health, Qatar University, Doha, 2713, Qatar
- Department of Chemistry, Jordan University of Science and Technology, P.O.Box 3030, Irbid, 22110, Jordan
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Abubakar M, Klein A, Fan S, Lawrence S, Mutreja K, Henry JE, Pfeiffer RM, Duggan MA, Gierach GL. Host, reproductive, and lifestyle factors in relation to quantitative histologic metrics of the normal breast. Breast Cancer Res 2023; 25:97. [PMID: 37582731 PMCID: PMC10426057 DOI: 10.1186/s13058-023-01692-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/29/2023] [Indexed: 08/17/2023] Open
Abstract
BACKGROUND Emerging data indicate that variations in quantitative epithelial and stromal tissue composition and their relative abundance in benign breast biopsies independently impact risk of future invasive breast cancer. To gain further insights into breast cancer etiopathogenesis, we investigated associations between epidemiological factors and quantitative tissue composition metrics of the normal breast. METHODS The study participants were 4108 healthy women ages 18-75 years who voluntarily donated breast tissue to the US-based Susan G. Komen Tissue Bank (KTB; 2008-2019). Using high-accuracy machine learning algorithms, we quantified the percentage of epithelial, stromal, adipose, and fibroglandular tissue, as well as the proportion of fibroglandular tissue that is epithelium relative to stroma (i.e., epithelium-to-stroma proportion, ESP) on digitized hematoxylin and eosin (H&E)-stained normal breast biopsy specimens. Data on epidemiological factors were obtained from participants using a detailed questionnaire administered at the time of tissue donation. Associations between epidemiological factors and square root transformed tissue metrics were investigated using multivariable linear regression models. RESULTS With increasing age, the amount of stromal, epithelial, and fibroglandular tissue declined and adipose tissue increased, while that of ESP demonstrated a bimodal pattern. Several epidemiological factors were associated with individual tissue composition metrics, impacting ESP as a result. Compared with premenopausal women, postmenopausal women had lower ESP [β (95% Confidence Interval (CI)) = -0.28 (- 0.43, - 0.13); P < 0.001] with ESP peaks at 30-40 years and 60-70 years among pre- and postmenopausal women, respectively. Pregnancy [β (95%CI) vs nulligravid = 0.19 (0.08, 0.30); P < 0.001] and increasing number of live births (P-trend < 0.001) were positively associated with ESP, while breastfeeding was inversely associated with ESP [β (95%CI) vs no breastfeeding = -0.15 (- 0.29, - 0.01); P = 0.036]. A positive family history of breast cancer (FHBC) [β (95%CI) vs no FHBC = 0.14 (0.02-0.26); P = 0.02], being overweight or obese [β (95%CI) vs normal weight = 0.18 (0.06-0.30); P = 0.004 and 0.32 (0.21-0.44); P < 0.001, respectively], and Black race [β (95%CI) vs White = 0.12 (- 0.005, 0.25); P = 0.06] were positively associated with ESP. CONCLUSION Our findings revealed that cumulative exposure to etiological factors over the lifespan impacts normal breast tissue composition metrics, individually or jointly, to alter their dynamic equilibrium, with potential implications for breast cancer susceptibility and tumor etiologic heterogeneity.
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Affiliation(s)
- Mustapha Abubakar
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Shady Grove, Bethesda, MD, 20850, USA.
| | - Alyssa Klein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Shady Grove, Bethesda, MD, 20850, USA
| | - Shaoqi Fan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Shady Grove, Bethesda, MD, 20850, USA
| | - Scott Lawrence
- Molecular and Digital Pathology Laboratory, Cancer Genomics Research Laboratory, Leidos Biomedical Research, Inc., Frederick, MD, 21702, USA
| | - Karun Mutreja
- Molecular and Digital Pathology Laboratory, Cancer Genomics Research Laboratory, Leidos Biomedical Research, Inc., Frederick, MD, 21702, USA
| | - Jill E Henry
- Biospecimen Collection and Banking Core, Susan G. Komen Tissue Bank at the IU Simon Comprehensive Cancer Center, Indianapolis, IN, USA
| | - Ruth M Pfeiffer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Shady Grove, Bethesda, MD, 20850, USA
| | - Maire A Duggan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, T2N2Y9, Canada
| | - Gretchen L Gierach
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Shady Grove, Bethesda, MD, 20850, USA
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11
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Thacher JD, Oudin A, Flanagan E, Mattisson K, Albin M, Roswall N, Pyko A, Aasvang GM, Andersen ZJ, Borgquist S, Brandt J, Broberg K, Cole-Hunter T, Eriksson C, Eneroth K, Gudjonsdottir H, Helte E, Ketzel M, Lanki T, Lim YH, Leander K, Ljungman P, Manjer J, Männistö S, Raaschou-Nielsen O, Pershagen G, Rizzuto D, Sandsveden M, Selander J, Simonsen MK, Stucki L, Spanne M, Stockfelt L, Tjønneland A, Yli-Tuomi T, Tiittanen P, Valencia VH, Ögren M, Åkesson A, Sørensen M. Exposure to long-term source-specific transportation noise and incident breast cancer: A pooled study of eight Nordic cohorts. ENVIRONMENT INTERNATIONAL 2023; 178:108108. [PMID: 37490787 DOI: 10.1016/j.envint.2023.108108] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/19/2023] [Accepted: 07/20/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND Environmental noise is an important environmental exposure that can affect health. An association between transportation noise and breast cancer incidence has been suggested, although current evidence is limited. We investigated the pooled association between long-term exposure to transportation noise and breast cancer incidence. METHODS Pooled data from eight Nordic cohorts provided a study population of 111,492 women. Road, railway, and aircraft noise were modelled at residential addresses. Breast cancer incidence (all, estrogen receptor (ER) positive, and ER negative) was derived from cancer registries. Hazard ratios (HR) were estimated using Cox Proportional Hazards Models, adjusting main models for sociodemographic and lifestyle variables together with long-term exposure to air pollution. RESULTS A total of 93,859 women were included in the analyses, of whom 5,875 developed breast cancer. The median (5th-95th percentile) 5-year residential road traffic noise was 54.8 (40.0-67.8) dB Lden, and among those exposed, the median railway noise was 51.0 (41.2-65.8) dB Lden. We observed a pooled HR for breast cancer (95 % confidence interval (CI)) of 1.03 (0.99-1.06) per 10 dB increase in 5-year mean exposure to road traffic noise, and 1.03 (95 % CI: 0.96-1.11) for railway noise, after adjustment for lifestyle and sociodemographic covariates. HRs remained unchanged in analyses with further adjustment for PM2.5 and attenuated when adjusted for NO2 (HRs from 1.02 to 1.01), in analyses using the same sample. For aircraft noise, no association was observed. The associations did not vary by ER status for any noise source. In analyses using <60 dB as a cutoff, we found HRs of 1.08 (0.99-1.18) for road traffic and 1.19 (0.95-1.49) for railway noise. CONCLUSIONS We found weak associations between road and railway noise and breast cancer risk. More high-quality prospective studies are needed, particularly among those exposed to railway and aircraft noise before conclusions regarding noise as a risk factor for breast cancer can be made.
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Affiliation(s)
- Jesse D Thacher
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.
| | - Anna Oudin
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden; Section for Sustainable Health, Umeå University, Sweden
| | - Erin Flanagan
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Kristoffer Mattisson
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Maria Albin
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nina Roswall
- Danish Cancer Society Research Centre, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark
| | - Andrei Pyko
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Gunn Marit Aasvang
- Department of Air Quality and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Zorana J Andersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Signe Borgquist
- Department of Oncology, Aarhus University Hospital, Aarhus University, Aarhus, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Karin Broberg
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Thomas Cole-Hunter
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Charlotta Eriksson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | | | - Hrafnhildur Gudjonsdottir
- Centre for Epidemiology and Community Medicine, Region Stockholm, Stockholm, Sweden; Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
| | - Emilie Helte
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Matthias Ketzel
- Department of Environmental Science, Aarhus University, Roskilde, Denmark; Global Centre for Clean Air Research (GCARE), University of Surrey, Guildford, United Kingdom
| | - Timo Lanki
- Department of Health Security, Finnish Institute for Health and Welfare, Kuopio, Finland; School of Medicine, University of Eastern Finland, Kuopio, Finland; Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Youn-Hee Lim
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Karin Leander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Petter Ljungman
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Cardiology, Danderyd Hospital, Stockholm, Sweden
| | - Jonas Manjer
- Department of Surgery, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Satu Männistö
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Ole Raaschou-Nielsen
- Danish Cancer Society Research Centre, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark; Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Debora Rizzuto
- Aging Research Centre, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | | | - Jenny Selander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mette K Simonsen
- Department of Neurology and the Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Lara Stucki
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mårten Spanne
- Environment Department, City of Malmö, Malmö, Sweden
| | - Leo Stockfelt
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden; Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Anne Tjønneland
- Danish Cancer Society Research Centre, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark; Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Tarja Yli-Tuomi
- Department of Health Security, Finnish Institute for Health and Welfare, Kuopio, Finland
| | - Pekka Tiittanen
- Department of Health Security, Finnish Institute for Health and Welfare, Kuopio, Finland
| | - Victor H Valencia
- Department of Environmental Science, Aarhus University, Roskilde, Denmark; UTE University, Quito, Ecuador
| | - Mikael Ögren
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden; Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Agneta Åkesson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mette Sørensen
- Danish Cancer Society Research Centre, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark; Department of Natural Science and Environment, Roskilde University, Denmark
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12
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Mao X, Omeogu C, Karanth S, Joshi A, Meernik C, Wilson L, Clark A, Deveaux A, He C, Johnson T, Barton K, Kaplan S, Akinyemiju T. Association of reproductive risk factors and breast cancer molecular subtypes: a systematic review and meta-analysis. BMC Cancer 2023; 23:644. [PMID: 37430191 DOI: 10.1186/s12885-023-11049-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 06/08/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Associations between reproductive factors and breast cancer (BC) risk vary by molecular subtype (i.e., luminal A, luminal B, HER2, and triple negative/basal-like [TNBC]). In this systematic review and meta-analysis, we summarized the associations between reproductive factors and BC subtypes. METHODS Studies from 2000 to 2021 were included if BC subtype was examined in relation to one of 11 reproductive risk factors: age at menarche, age at menopause, age at first birth, menopausal status, parity, breastfeeding, oral contraceptive (OC) use, hormone replacement therapy (HRT), pregnancy, years since last birth and abortion. For each reproductive risk factor, BC subtype, and study design (case-control/cohort or case-case), random-effects models were used to estimate pooled relative risks and 95% confidence intervals. RESULTS A total of 75 studies met the inclusion criteria for systematic review. Among the case-control/cohort studies, later age at menarche and breastfeeding were consistently associated with decreased risk of BC across all subtypes, while later age at menopause, later age of first childbirth, and nulliparity/low parity were associated with increased risk of luminal A, luminal B, and HER2 subtypes. In the case-only analysis, compared to luminal A, postmenopausal status increased the risk of HER2 and TNBC. Associations were less consistent across subtypes for OC and HRT use. CONCLUSION Identifying common risk factors across BC subtypes can enhance the tailoring of prevention strategies, and risk stratification models can benefit from subtype specificity. Adding breastfeeding status to current BC risk prediction models can enhance predictive ability, given the consistency of the associations across subtypes.
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Affiliation(s)
- Xihua Mao
- Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, KY, USA
| | - Chioma Omeogu
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - Shama Karanth
- UF Health Cancer Canter, University of Florida, Gainesville, FL, USA
| | - Ashwini Joshi
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - Clare Meernik
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - Lauren Wilson
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - Amy Clark
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - April Deveaux
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA
| | - Chunyan He
- The Cancer Prevention and Control Research Program, University of Kentucky Markey Cancer Center, Lexington, KY, USA
| | - Tisha Johnson
- Department of Preventive Medicine and Environmental Health, College of Public Health, University of Kentucky, Lexington, KY, USA
| | - Karen Barton
- Duke University Medical Center Library & Archives, Duke University School of Medicine, Durham, NC, USA
| | - Samantha Kaplan
- Duke University Medical Center Library & Archives, Duke University School of Medicine, Durham, NC, USA
| | - Tomi Akinyemiju
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC, USA.
- Duke Cancer Institute, Duke University, Durham, NC, USA.
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13
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Liu X, Bai F, Wang Y, Wang C, Chan HL, Zheng C, Fang J, Zhu WG, Pei XH. Loss of function of GATA3 regulates FRA1 and c-FOS to activate EMT and promote mammary tumorigenesis and metastasis. Cell Death Dis 2023; 14:370. [PMID: 37353480 PMCID: PMC10290069 DOI: 10.1038/s41419-023-05888-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 06/08/2023] [Accepted: 06/14/2023] [Indexed: 06/25/2023]
Abstract
Basal-like breast cancers (BLBCs) are among the most aggressive cancers, partly due to their enrichment of cancer stem cells (CSCs). Breast CSCs can be generated from luminal-type cancer cells via epithelial-mesenchymal transition (EMT). GATA3 maintains luminal cell fate, and its expression is lost or reduced in BLBCs. However, deletion of Gata3 in mice or cells results in early lethality or proliferative defects. It is unknown how loss-of-function of GATA3 regulates EMT and CSCs in breast cancer. We report here that haploid loss of Gata3 in mice lacking p18Ink4c, a cell cycle inhibitor, up-regulates Fra1, an AP-1 family protein that promotes mesenchymal traits, and downregulates c-Fos, another AP-1 family protein that maintains epithelial fate, leading to activation of EMT and promotion of mammary tumor initiation and metastasis. Depletion of Gata3 in luminal tumor cells similarly regulates Fra1 and c-Fos in activation of EMT. GATA3 binds to FOSL1 (encoding FRA1) and FOS (encoding c-FOS) loci to repress FOSL1 and activate FOS transcription. Deletion of Fra1 or reconstitution of Gata3, but not reconstitution of c-Fos, in Gata3 deficient tumor cells inhibits EMT, preventing tumorigenesis and/or metastasis. In human breast cancers, GATA3 expression is negatively correlated with FRA1 and positively correlated with c-FOS. Low GATA3 and FOS, but high FOSL1, are characteristics of BLBCs. Together, these data provide the first genetic evidence indicating that loss of function of GATA3 in mammary tumor cells activates FOSL1 to promote mesenchymal traits and CSC function, while concurrently repressing FOS to lose epithelial features. We demonstrate that FRA1 is required for the activation of EMT in GATA3 deficient tumorigenesis and metastasis.
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Affiliation(s)
- Xiong Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, International Cancer Center, Marshall Laboratory of Biomedical Engineering, The First Affiliated Hospital, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Feng Bai
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, International Cancer Center, Marshall Laboratory of Biomedical Engineering, The First Affiliated Hospital, Shenzhen University Health Science Center, Shenzhen, 518060, China.
- Department of Pathology, Shenzhen University Health Science Center, Shenzhen, 518060, China.
- Dewitt Daughtry Family Department of Surgery, University of Miami, Miami, FL, 33136, USA.
| | - Yuchan Wang
- Gansu Dian Medical Laboratory, Lanzhou, 730000, China
| | - Chuying Wang
- Dewitt Daughtry Family Department of Surgery, University of Miami, Miami, FL, 33136, USA
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Ho Lam Chan
- Dewitt Daughtry Family Department of Surgery, University of Miami, Miami, FL, 33136, USA
| | - Chenglong Zheng
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, International Cancer Center, Marshall Laboratory of Biomedical Engineering, The First Affiliated Hospital, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Jian Fang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, International Cancer Center, Marshall Laboratory of Biomedical Engineering, The First Affiliated Hospital, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Wei-Guo Zhu
- Department of Biochemistry and Molecular Biology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Xin-Hai Pei
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, International Cancer Center, Marshall Laboratory of Biomedical Engineering, The First Affiliated Hospital, Shenzhen University Health Science Center, Shenzhen, 518060, China.
- Dewitt Daughtry Family Department of Surgery, University of Miami, Miami, FL, 33136, USA.
- Department of Anatomy and Histology, Shenzhen University Health Science Center, Shenzhen, 518060, China.
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14
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Li Y, Hu S, Chen Y, Zhang X, Gao H, Tian J, Chen J. Calycosin inhibits triple-negative breast cancer progression through down-regulation of the novel estrogen receptor-α splice variant ER-α30-mediated PI3K/AKT signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154924. [PMID: 37393829 DOI: 10.1016/j.phymed.2023.154924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/26/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is a heterogeneous carcinoma characterized by the most aggressive phenotype among all breast cancer subtypes. However, therapeutic options for TNBC patients have limited clinical efficacy due to lack of specific target and efficient targeted therapeutics. AIM To investigate the biological characteristics of a novel estrogen receptor (ER)-α splice variant ER-α30 in breast cancer cells, and its possible role in the anticancer effects of calycosin, a typical phytoestrogen derived from the herbal plant Astragalus membranaceus, against TNBC. This may also provide a better understanding of the inhibitory activity of calycosin on TNBC progression. METHODS Breast cancer tissues and para-cancer tissues were collected and analyzed for the expression levels of ER-α30 using immunohistochemistry (IHC), and its expression in two TNBC cell lines (MDA-MB-231 and BT-549) was detected by western blot and qRT-PCR assays. Then the alteration of cell viability, apoptosis, migration, invasion and epithelial-mesenchymal transition (EMT) in response to overexpression or knockdown of ER-α30 was separately determined by CCK-8, Hoechst 33258, wound healing, transwell and western blot assays in two TNBC cell lines. Next, the anticancer effects of calycosin on MDA-MB-231 cells were evaluated through CCK-8, colony formation, flow cytometry, Hoechst 33258 and western blot assays, along with the role of ER-α30 in these effects and the possible downstream targets of ER-α30. In addition, the in vivo experiments were carried out using MDA-MB-231 xenograft model intraperitoneally treated with calycosin. The volume and weight of xenograft tumor were measured to evaluate the in vivo anticancer activities of calycosin, while the corresponding changes of ER-α30 expression in tumor tissues were detected by IHC. RESULTS It was demonstrated that the novel ER-α splice variant ER-α30 was primarily distributed in the nucleus of TNBC cells. Compared with normal breast tissues, ER-α30 expression was found in significantly higher levels in breast cancer tissues of ER- and progesterone receptor (PR)-negative subtype, so did in TNBC cell lines (MDA-MB-231 and BT-549) when compared to normal breast cell line MCF10A. Moreover, ER-α30 overexpression strikingly enhanced cell viability, migration, invasion and EMT progression and reduced apoptosis in TNBC cells, whereas shRNA-mediated knockdown of ER-α30 revealed the opposite results. Notably, calycosin suppressed the expression of ER-α30 in a dose-dependent manner, accompanied with the inhibition of TNBC growth and metastasis. A similar finding was observed for the xenografts generated from MDA-MB-231 cells. The treatment with calycosin suppressed the tumor growth and decreased ER-α30 expression in tumor tissues. Furthermore, this inhibition by calycosin was more pronounced in ER-α30 knockdown cells. Meanwhile, we found a positive relationship between ER-α30 and the activity of PI3K and AKT, which could also be inactivated by calycosin treatment. CONCLUSION For the first time, it is demonstrated that the novel estrogen receptor-α splice variant ER-α30 could function as pro-tumorigenic factor in the context of TNBC by participating in cell proliferation, apoptosis, invasion and metastasis, thus it may serve as a potential therapeutic target for TNBC therapy. Calycosin could reduce the activation of ER-α30-mediated PI3K/AKT pathway, thereby inhibited TNBC development and progression, suggesting that calycosin may be a potential therapeutic option for TNBC.
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Affiliation(s)
- Yuhong Li
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China; The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, PR China
| | - Shuying Hu
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China
| | - Yueqi Chen
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China
| | - Xing Zhang
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China
| | - Hanchi Gao
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China
| | - Jing Tian
- Department of Physiology, Guilin Medical University, Guilin, Guangxi, PR China.
| | - Jian Chen
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation of Guangxi, Guilin Medical University, Guilin, Guangxi, PR China.
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15
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Lian Y, Wang GP, Chen GQ, Chen HN, Zhang GY. Association between ultra-processed foods and risk of cancer: a systematic review and meta-analysis. Front Nutr 2023; 10:1175994. [PMID: 37360305 PMCID: PMC10285062 DOI: 10.3389/fnut.2023.1175994] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/16/2023] [Indexed: 06/28/2023] Open
Abstract
Background Despite increasing evidence that has shown the association of ultra-processed foods (UPFs) with cancer risk, the results remain inconclusive. We, therefore, conducted the meta-analysis to clarify the association by including recently published studies. Methods A comprehensive search was conducted in PubMed, Embase, and Web of Science to identify all relevant studies from inception to January 2023. To pool data, fixed-effects or random-effects models were used where appropriate. Subgroup analyses, sensitivity analyses, and publication bias tests were performed. Results A total of 13 studies (4 cohort studies and 9 case-control studies) were included in the analysis, with a total of 625,738 participants. The highest UPFs consumption was associated with increased risk of colorectal cancer (OR = 1.23, 95% CI: 1.10-1.38), colon cancer (OR = 1.25, 95% CI: 1.14-1.36), and breast cancer (OR = 1.10, 95% CI: 1.00-1.20) but not rectal cancer (OR = 1.18, 95% CI: 0.97-1.43) and prostate cancer (OR = 1.03, 95% CI: 0.93-1.12). In addition, the subgroup analyses showed that a positive association between UPFs consumption and colorectal cancer was observed among men (OR = 1.31, 95% CI: 1.15-1.50), whereas no significant association was observed among women (OR = 1.10, 95% CI: 0.94-1.29). Conclusion The present meta-analysis suggests that high UPFs consumption is associated with a significantly increased risk of certain site-specific cancers, especially the digestive tract and some hormone-related cancers. However, further rigorously designed prospective and experimental studies are needed to better understand causal pathways.
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Affiliation(s)
- Ying Lian
- Department of Health Management and Engineering Laboratory for Health Management, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Medical Record Management and Statistics, Shandong Provincial Qianfoshan Hospital and The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Gang-Pu Wang
- Department of General Surgery, The Fourth People's Hospital of Jinan City, Jinan, China
| | - Guo-Qiang Chen
- Department of Health Management and Engineering Laboratory for Health Management, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Medical Record Management and Statistics, Shandong Provincial Qianfoshan Hospital and The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Hua-Nan Chen
- Department of Health Management and Engineering Laboratory for Health Management, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Medical Record Management and Statistics, Shandong Provincial Qianfoshan Hospital and The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Guang-Yong Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital and The First Affiliated Hospital of Shandong First Medical University, Jinan, China
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16
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Elagib H, Alshammari SS, Alsadoon WK, Zahra A. Assessment of the Attitudes, Beliefs, and Potential Effects of Nutritional Phytoestrogenic Plant Consumption on Women's Health in Saudi Arabia. Cureus 2023; 15:e40918. [PMID: 37496541 PMCID: PMC10367118 DOI: 10.7759/cureus.40918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Phytoestrogens are plant-derived endocrine-disrupting chemicals known as estrogen-like compounds with health and preventive benefits. This study aimed to assess Saudi Arabian women's beliefs and attitudes toward phytoestrogen-rich plant consumption and its association with hormone-sensitive tumors and diseases. METHODS A cross-sectional study was carried out between November 2022 and May 2023 in Saudi Arabia using an online self-administered questionnaire created via Google Forms (Appendix). The collected data were extracted, coded, and analyzed using the IBM Corp. Released 2012. IBM SPSS Statistics for Windows, Version 21.0. Armonk, NY: IBM Corp. RESULTS The study included 702 females aged 18 years and older. 61.6% (n=432) of the participants consumed Trigonella foenum-graecum (fenugreek) and Foeniculum vulgare (fennel), whereas 45.7% (n=321) consumed soy products and flaxseeds. In addition, 44.7% (n=191) were diagnosed with breast tumors and other breast diseases. The association between the occurrence of breast conditions and the consumption of all the different types of phytoestrogen-rich plants in this study was significant, with a p-value of <0.001. (41.7%, n=187) diagnosed with uterine and ovarian-related conditions, the association with the consumption of fenugreek and fennel was significant with a p-value of <0.001, but for soy products and flaxseed consumption, the association was not significant with a p-value of 0.368. Regarding the consumer's attitudes and duration of consumption, most of them (41.0%, n=288) consume phytoestrogen-rich herbs and plants about every month during menstruation, and 55% (n=386) consumed phytoestrogen-rich plants a long time ago (for many years). About the purpose of consumption, 62.1% (n=436) answered to reduce pain and symptoms associated with menstruation. The majority of the participants (36.3%, n=255) have poor knowledge and don't know about the high estrogen levels' impact on their health. CONCLUSION The study showed that there is a possible association between the consumption of some types of phytoestrogen-rich plants and the occurrence of several hormone-related tumors and diseases. Further studies are needed to evaluate the possible effects in consideration of the co-founding factors.
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Affiliation(s)
- Halima Elagib
- Pharmacology, Faculty of Pharmacy, Omdurman Islamic University, Omdurman, SDN
- Pharmacology, College of Medicine, University of Hail College of Medicine, Hail, SAU
| | | | - Wefaq K Alsadoon
- Medicine and Surgery, University of Hail College of Medicine, Hail, SAU
| | - Aqeela Zahra
- Community and Family Medicine, Leicester Medical School, University of Leicester, Leicester, GBR
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17
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Abubakar M, Ahearn TU, Duggan MA, Lawrence S, Adjei E, Clegg-Lamptey JN, Yarney J, Wiafe-Addai B, Awuah B, Wiafe S, Nyarko K, Aitpillah F, Ansong D, Hewitt SM, Brinton LA, Figueroa JD, Garcia-Closas M, Edusei L, Titiloye N. Associations of breast cancer etiologic factors with stromal microenvironment of primary invasive breast cancers in the Ghana Breast Health Study. RESEARCH SQUARE 2023:rs.3.rs-2791342. [PMID: 37090574 PMCID: PMC10120782 DOI: 10.21203/rs.3.rs-2791342/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Background Emerging data suggest that beyond the neoplastic parenchyma, the stromal microenvironment (SME) impacts tumor biology, including aggressiveness, metastatic potential, and response to treatment. However, the epidemiological determinants of SME biology remain poorly understood, more so among women of African ancestry who are disproportionately affected by aggressive breast cancer phenotypes. Methods Within the Ghana Breast Health Study, a population-based case-control study in Ghana, we applied high-accuracy machine-learning algorithms to characterize biologically-relevant SME phenotypes, including tumor-stroma ratio (TSR (%); a metric of connective tissue stroma to tumor ratio) and tumor-associated stromal cellular density (Ta-SCD (%); a tissue biomarker that is reminiscent of chronic inflammation and wound repair response in breast cancer), on digitized H&E-stained sections from 792 breast cancer patients aged 17-84 years. Kruskal-Wallis tests and multivariable linear regression models were used to test associations between established breast cancer risk factors, tumor characteristics, and SME phenotypes. Results Decreasing TSR and increasing Ta-SCD were strongly associated with aggressive, mostly high grade tumors (p-value < 0.001). Several etiologic factors were associated with Ta-SCD, but not TSR. Compared with nulliparous women [mean (standard deviation) = 28.9% (7.1%)], parous women [mean (standard deviation) = 31.3% (7.6%)] had statistically significantly higher levels of Ta-SCD (p-value = 0.01). Similarly, women with a positive family history of breast cancer [FHBC; mean (standard deviation) = 33.0% (7.5%)] had higher levels of Ta-SCD than those with no FHBC [mean (standard deviation) = 30.9% (7.6%); p-value = 0.01]. Conversely, increasing body size was associated with decreasing Ta-SCD [mean (standard deviation) = 32.0% (7.4%), 31.3% (7.3%), and 29.0% (8.0%) for slight, moderate, and large body sizes, respectively, p-value = 0.005]. These associations persisted and remained statistically significantly associated with Ta-SCD in mutually-adjusted multivariable linear regression models (p-value < 0.05). With the exception of body size, which was differentially associated with Ta-SCD by grade levels (p-heterogeneity = 0.04), associations between risk factors and Ta-SCD were not modified by tumor characteristics. Conclusions Our findings raise the possibility that epidemiological factors may act via the SME to impact both risk and biology of breast cancers in this population, underscoring the need for more population-based research into the role of SME in multi-state breast carcinogenesis.
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18
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Narii N, Kito K, Sobue T, Zha L, Kitamura T, Matsui Y, Matsuda T, Kotemori A, Nakadate M, Iwasaki M, Inoue M, Yamaji T, Tsugane S, Ishihara J, Sawada N. Acrylamide and Glycidamide Hemoglobin Adduct Levels and Breast Cancer Risk in Japanese Women: A Nested Case-Control Study in the JPHC. Cancer Epidemiol Biomarkers Prev 2023; 32:415-421. [PMID: 36535654 DOI: 10.1158/1055-9965.epi-22-0904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/27/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Acrylamide (AA) is classified as "probably carcinogenic to humans (class 2A)" by the International Agency for Research on Cancer. AA causes cancer owing to its mutagenic and genotoxic metabolite, glycidamide (GA), and its effects on sex hormones. Both AA and GA can interact with hemoglobin to hemoglobin adducts (HbAA and HbGA, respectively), which are considered appropriate biomarkers of internal exposure of AA. However, few epidemiologic studies reported an association of HbAA and HbGA with breast cancer. METHODS We conducted a nested case-control study within the Japan Public Health Center-based Prospective Study cohort (125 cases and 250 controls). Cases and controls were categorized into tertiles (lowest, middle, and highest) using the distribution of HbAA or HbGA levels in the control group and estimated ORs and 95% confidence intervals (CI) using conditional logistic regression, adjusting for potential confounders. RESULTS No association was observed between HbAA (ORHighestvs.Lowest, 1.34; 95% CI, 0.69-2.59), HbGA (ORHighest vs. Lowest, 1.46; 95% CI, 0.79-2.69), their sum HbAA+HbGA (ORHighest vs. Lowest, 1.36; 95% CI, 0.72-2.58) and breast cancer; however, some evidence of positive association was observed between their ratio, HbGA/HbAA, and breast cancer (ORHighest vs. Lowest, 2.19; 95% CI, 1.11-4.31). CONCLUSIONS There was no association between biomarkers of AA and breast cancer. IMPACT It is unlikely that AA increases breast cancer risk; however, the association of AA with breast cancer may need to be evaluated, with a focus not only on the absolute amount of HbAA or HbGA but also on HbGA/HbAA and the activity of metabolic genes.
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Affiliation(s)
- Nobuhiro Narii
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kumiko Kito
- School of Life and Environmental Science, Azabu University, Kanagawa, Japan.,Division of Cohort research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Tomotaka Sobue
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Ling Zha
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yasuto Matsui
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | | | - Ayaka Kotemori
- School of Life and Environmental Science, Azabu University, Kanagawa, Japan
| | - Misako Nakadate
- School of Life and Environmental Science, Azabu University, Kanagawa, Japan
| | - Motoki Iwasaki
- Division of Cohort research, National Cancer Center Institute for Cancer Control, Tokyo, Japan.,Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Manami Inoue
- Division of Cohort research, National Cancer Center Institute for Cancer Control, Tokyo, Japan.,Division of Prevention, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Shoichiro Tsugane
- Division of Cohort research, National Cancer Center Institute for Cancer Control, Tokyo, Japan.,National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Junko Ishihara
- School of Life and Environmental Science, Azabu University, Kanagawa, Japan
| | - Norie Sawada
- Division of Cohort research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
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19
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Ihenacho U, McKinley MA, Vu A, Hernandez BY, Loo LWM, Gomez SL, Wu AH, Cheng I. Characterizing breast cancer incidence and trends among Asian American, Native Hawaiian, and non-Hispanic White women in Hawai'i, 1990-2014. Cancer Causes Control 2023; 34:241-249. [PMID: 36504334 PMCID: PMC10441590 DOI: 10.1007/s10552-022-01659-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 12/01/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE To characterize breast cancer (BC) incidence by age at diagnosis and BC subtype among disaggregated Asian American, Native Hawaiian, and Pacific Islander (AANHPI) women and non-Hispanic White (NHW) women in Hawai'i. METHODS Using 1990-2014 data from the Hawai'i tumor registry, we estimated age-adjusted incidence rates (AAIR) of BC and the annual percent change in BC incidence by age (<50 and ≥50 years) and BC subtype (hormone receptor [HR]+/human epidermal growth factor receptor 2 [HER2]-, HR+/HER2+, HR-/HER2+, triple negative BC) for Filipino American (FA), Japanese American (JA), Native Hawaiian (NH), and NHW women. RESULTS Among young (<50 years) women, annual BC incidence increased 2.9% (1994-2014) among JA and 1.0% (1990-2014) among NHW women. Incidence was highest among young JA women (2010-2014 AAIR 52.0 per 100,000; 95% confidence interval [CI] 45.6, 58.9). HR+/HER2- BC, the major BC subtype, was similarly highest among young JA women (AAIR 39.5; 95% CI 33.9, 45.4). Among older (≥50 years) women, annual BC incidence increased 1.6% (1990-2014) among FA and 4.2% (2006-2014) for JA women. BC incidence was highest among older NH women (AAIR 137.6, 95% CI 128.2, 147.4), who also displayed highest incidence of two subtypes: HR+/HER2- (AAIR 106.9; 95% CI 98.6, 115.5) and HR+/HER2+ (AAIR 12.1; 95% CI 9.4, 15.1). CONCLUSION We observed high and increasing BC incidence among JA women ages <50 years and high incidence among NH women ages ≥50 years. These results highlight racial and ethnic differences in BC incidence among disaggregated AANHPI populations in Hawai'i by age and BC subtype.
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Affiliation(s)
- Ugonna Ihenacho
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Meg A McKinley
- Greater Bay Area Cancer Registry, University of California San Francisco, San Francisco, CA, USA
| | - Annie Vu
- Greater Bay Area Cancer Registry, University of California San Francisco, San Francisco, CA, USA
| | - Brenda Y Hernandez
- Population Sciences in the Pacific Program-Cancer Epidemiology, University of Hawai'i Cancer Center, Honolulu, HI, USA
| | - Lenora W M Loo
- Cancer Biology Program, University of Hawai'i Cancer Center, Honolulu, HI, USA
| | - Scarlett Lin Gomez
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Anna H Wu
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Iona Cheng
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA.
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20
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Menikdiwela KR, Kahathuduwa C, Bolner ML, Rahman RL, Moustaid-Moussa N. Association between Obesity, Race or Ethnicity, and Luminal Subtypes of Breast Cancer. Biomedicines 2022; 10:biomedicines10112931. [PMID: 36428500 PMCID: PMC9687751 DOI: 10.3390/biomedicines10112931] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022] Open
Abstract
Luminal breast cancers are the most common genomic subtype of breast cancers where Luminal A cancers have a better prognosis than Luminal B. Exposure to sex steroids and inflammatory status due to obesity are key contributors of Luminal tumor development. In this study, 1928 patients with Luminal A breast cancer and 1610 patients with Luminal B breast cancer were compared based on body mass index (BMI), age, race, menopausal status, and expressed receptors (i.e., estrogen (ER), progesterone (PR), and human epidermal growth factor receptor 2 (HER2)). Patients with Luminal B tumors had a significantly higher mean BMI (Δ = 0.69 kgm−2 [0.17, 1.21], p = 0.010) versus Luminal A. Interestingly, the risks of Luminal B tumors were higher among Black/African American patients versus White and Hispanic patients (p < 0.001 and p = 0.001, respectively). When controlled for each other, Black/African American race (p < 0.001) and increased BMI (p = 0.008) were associated with increased risks of Luminal B carcinoma, while postmenopausal status was associated with a decreased risk (p = 0.028). Increased BMI partially mediated the strong association between Black/African American race and the risk of Luminal B carcinoma. Thus, Black/African American race along with obesity seem to be associated with an increased risk of more aggressive Luminal B breast carcinomas.
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Affiliation(s)
- Kalhara R. Menikdiwela
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
| | - Chanaka Kahathuduwa
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
- Department of Psychiatry, School of Medicine, Texas Tech Health Sciences Center, Lubbock, TX 79430, USA
| | | | - Rakhshanda Layeequr Rahman
- Breast Cancer Center of Excellence, Texas Tech Health Sciences Center, Lubbock, TX 79430, USA
- Correspondence: (R.L.R.); (N.M.-M.); Tel.: +1-806-743-2370 (R.L.R.); +1-806-834-7946 (N.M.-M.)
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
- Correspondence: (R.L.R.); (N.M.-M.); Tel.: +1-806-743-2370 (R.L.R.); +1-806-834-7946 (N.M.-M.)
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21
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Zeng T, Xu H, Liu Y, Sun C, Yang F, Liang Y, Huang X, Fu Z, Li W, Yin Y. High rate of epidermal growth factor receptor-mutated primary lung cancer in patients with primary breast cancer. Front Oncol 2022; 12:985734. [PMID: 36313724 PMCID: PMC9606206 DOI: 10.3389/fonc.2022.985734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/29/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundWith increased survival in breast cancer, resulting from advances in treatment, patients incur the possibility of subsequent primary malignancies, especially lung cancer. The aim of this study was to assess the frequency of CT-detected pulmonary ground-glass nodules and lung cancer following breast cancer diagnosis, the associations between breast cancer and lung cancer, the pathological features of double primary cancer, and the status of epidermal growth factor receptor (EGFR) mutations in second primary lung cancer.MethodsClinical data from more than 9000 individuals who were diagnosed with primary breast cancer at Jiangsu Province Hospital (Jiangsu, China) between January 2008 and December 2021 were retrospectively analyzed.ResultsOf the 9179 patients, 6512 underwent diagnostic CT, 55 (0.8%) were diagnosed with a second primary lung cancer, which accounted for approximately 18.4% of the pulmonary ground-glass nodules (GGNs) detected. The incidence was higher than in the general female population (standardized incidence ratio 1.4 [95% confidence interval (CI): 1.25-1.55]). Patients who experienced a second primary lung cancer exhibited a significantly higher rate of EGFR mutation (78.5%) than those with lung adenocarcinoma alone, with most exhibiting low-grade malignancy, older age, estrogen receptor negativity, low Ki67, and no lymph node metastasis.ConclusionsBreast cancer patients, especially those with low-grade malignancy, were at high risk for developing primary lung cancer. For isolated GGN in patients with high-risk factors, clinicians should insist on close follow-up. Furthermore, EGFR may play an important role in primary lung adenocarcinomas and breast cancer.
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Affiliation(s)
- Tianyu Zeng
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hai Xu
- Department of Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yincheng Liu
- Department of Plastic Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chunxiao Sun
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Fan Yang
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Liang
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiang Huang
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ziyi Fu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Nanjing Maternal and Child Health Medical Institute, Obstetrics and Gynecology Hospital Affiliated of Nanjing Medical University, Nanjing, China
| | - Wei Li
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Yongmei Yin, ; Wei Li,
| | - Yongmei Yin
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Yongmei Yin, ; Wei Li,
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22
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He Y, Si Y, Li X, Hong J, Yu C, He N. The relationship between tobacco and breast cancer incidence: A systematic review and meta-analysis of observational studies. Front Oncol 2022; 12:961970. [PMID: 36185316 PMCID: PMC9520920 DOI: 10.3389/fonc.2022.961970] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe effect of tobacco on breast cancer (BC) is controversial. The purpose of this study was to investigate the relationship between tobacco and BC.MethodsA search was conducted in PubMed, EBSCO, Web of Science and Cochrane Library databases before February 2022. The adjusted odd ratio (OR) and corresponding 95% confidence interval (CI) were used to examine the relationship between active or passive smoking and BC risk.ResultsA total of 77 articles composed of 2,326,987 participants were included for this meta-analysis. Active (OR=1.15, 95% CI=1.11-1.20, p<0.001) and passive (OR=1.17, 95% CI=1.09-1.24, p<0.001) smoking increased the risk of BC in the female population, especially premenopausal BC (active smoking: OR=1.24, p<0.001; passive smoking: OR=1.29, p<0.001), but had no effect on postmenopausal BC (active smoking: OR=1.03, p=0.314; passive smoking: OR=1.13, p=0.218). Active smoking increased the risk of estrogen receptor-positive (ER+) BC risk (OR=1.13, p<0.001), but had no effect on estrogen receptor-negative (ER-) BC (OR=1.08, p=0.155). The risk of BC was positively associated with the duration and intensity of smoking, negatively associated with the duration of smoking cessation. Active smoking increased the risk of BC in the multiparous population (OR=1.13, p<0.001), but had no effect on the nulliparous population (OR=1.05, p=0.432), and smoking before the first birth (OR=1.22, 95% CI=1.17-1.27) had a greater impact on the risk of BC than smoking after the first birth (OR=1.08, 95% CI=1.04-1.12).ConclusionSmoking (active and passive) increased the risk of BC in women. The effect of smoking on BC was influenced by smoking-related factors (duration, intensity, years of quitting), population-related factors (fertility status), and BC subtypes.Systematic Review Registrationidentifier CRD42022322699.
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Affiliation(s)
- Yujing He
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuexiu Si
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiangyuan Li
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiaze Hong
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chiyuan Yu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ning He
- Department of Tumor High-intensity focused ultrasound (HIFU) Therapy, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China
- *Correspondence: Ning He,
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23
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Micha JP, Rettenmaier MA, Bohart RD, Goldstein BH. Hormone Therapy and Risk of Breast Cancer: Where Are We Now? J Menopausal Med 2022; 28:47-51. [PMID: 36070869 PMCID: PMC9452594 DOI: 10.6118/jmm.21035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/02/2022] [Accepted: 08/08/2022] [Indexed: 11/05/2022] Open
Abstract
Several studies have examined the clinical benefits of hormone replacement therapy (HRT). However, because long-term use of HRT has been implicated as a risk factor for the development of breast cancer, some women remain skeptical when considering this therapy to address their vasomotor symptoms. Hence, physicians and nurses should actively engage in constructive discourse with their patients regarding HRT while specifically reviewing the potential risks of its extended use as well as provide the available medical alternatives the patients could potentially use.
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Affiliation(s)
- John P Micha
- Women's Cancer Research Foundation, Laguna Beach, CA, USA
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24
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Naaman SC, Shen S, Zeytinoglu M, Iyengar NM. Obesity and Breast Cancer Risk: The Oncogenic Implications of Metabolic Dysregulation. J Clin Endocrinol Metab 2022; 107:2154-2166. [PMID: 35453151 PMCID: PMC9282365 DOI: 10.1210/clinem/dgac241] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 12/18/2022]
Abstract
CONTEXT Breast cancer is increasing in prevalence in parallel with rising rates of obesity worldwide. Obesity is recognized as a leading modifiable risk factor for the development of breast cancer; however, this association varies considerably by clinicopathologic features, and the underlying mechanisms are complex. EVIDENCE ACQUISITION Pubmed literature search using combinations of "obesity," "breast cancer risk," "diet," "exercise," "weight gain," "weight loss," "adipose tissue inflammation," "crown-like structure," "immune markers," "metformin," "gliflozins," "SGLT-2i," "GLP1-RA," and related terms. EVIDENCE SYNTHESIS Elevated body mass index and weight gain are associated with increased risk of postmenopausal, hormone receptor-positive breast cancer. Emerging evidence suggests that adverse measures of body composition in individuals of any weight can also confer increased breast cancer risk. Mechanistically, various factors including altered adipokine balance, dysfunctional adipose tissue, dysregulated insulin signaling, and chronic inflammation contribute to tumorigenesis. Weight loss and more specifically fat mass loss through lifestyle and pharmacologic interventions improve serum metabolic and inflammatory markers, sex hormone levels, and measures of breast density, suggesting a link to decreased breast cancer risk. CONCLUSION Incorporating markers of metabolic health and body composition measures with body mass index can capture breast cancer risk more comprehensively. Further studies of interventions targeting body fat levels are needed to curb the growing prevalence of obesity-related cancer.
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Affiliation(s)
| | | | | | - Neil M Iyengar
- Correspondence: Neil Iyengar, MD, Associate Attending, Department of Medicine, Memorial Sloan Kettering Cancer Center, Evelyn H. Lauder Breast Center, 300 East 66th Street | New York, NY 10065, USA.
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25
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Wu X, Xiao C, Han Z, Zhang L, Zhao X, Hao Y, Xiao J, Gallagher CS, Kraft P, Morton CC, Li J, Jiang X. Investigating the shared genetic architecture of uterine leiomyoma and breast cancer: A genome-wide cross-trait analysis. Am J Hum Genet 2022; 109:1272-1285. [PMID: 35803233 PMCID: PMC9300879 DOI: 10.1016/j.ajhg.2022.05.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/25/2022] [Indexed: 01/09/2023] Open
Abstract
Little is known regarding the shared genetic architecture or causality underlying the phenotypic association observed for uterine leiomyoma (UL) and breast cancer (BC). Leveraging summary statistics from the hitherto largest genome-wide association study (GWAS) conducted in each trait, we investigated the genetic overlap and causal associations of UL with BC overall, as well as with its subtypes defined by the status of estrogen receptor (ER). We observed a positive genetic correlation between UL and BC overall (rg = 0.09, p = 6.00 × 10-3), which was consistent in ER+ subtype (rg = 0.06, p = 0.01) but not in ER- subtype (rg = 0.06, p = 0.08). Partitioning the whole genome into 1,703 independent regions, local genetic correlation was identified at 22q13.1 for UL with BC overall and with ER+ subtype. Significant genetic correlation was further discovered in 9 out of 14 functional categories, with the highest estimates observed in coding, H3K9ac, and repressed regions. Cross-trait meta-analysis identified 9 novel loci shared between UL and BC. Mendelian randomization demonstrated a significantly increased risk of BC overall (OR = 1.09, 95% CI = 1.01-1.18) and ER+ subtype (OR = 1.09, 95% CI = 1.01-1.17) for genetic liability to UL. No reverse causality was found. Our comprehensive genome-wide cross-trait analysis demonstrates a shared genetic basis, pleiotropic loci, as well as a putative causal relationship between UL and BC, highlighting an intrinsic link underlying these two complex female diseases.
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Affiliation(s)
- Xueyao Wu
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chenghan Xiao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhitong Han
- Department of Life Sciences, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Zhang
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xunying Zhao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yu Hao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jinyu Xiao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - C Scott Gallagher
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Peter Kraft
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Cynthia Casson Morton
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Manchester Centre for Audiology and Deafness, Manchester Academic Health Science Center, University of Manchester, Manchester M13 9PL, UK
| | - Jiayuan Li
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Xia Jiang
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Solna, Stockholm, Sweden; Program in Genetic Epidemiology and Statistical Genetics, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
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AlEdeilah RD, Alanazi OHA, AlHarby BSF, Al Issa MSA, Al-Dhahry SAS, AlAnazi ANK, AlAnazi HOH, Alanazi SNS. Breastfeeding as a Protective Factor against Breast Cancer: A Systematic Review. CLINICAL CANCER INVESTIGATION JOURNAL 2022. [DOI: 10.51847/cyzvpnmb4r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Yoon KH, Park Y, Kang E, Kim EK, Kim JH, Kim SH, Suh KJ, Kim SM, Jang M, Yun BL, Park SY, Shin HC. Effect of Estrogen Receptor Expression Level and Hormonal Therapy on Prognosis of Early Breast Cancer. Cancer Res Treat 2021; 54:1081-1090. [PMID: 34793665 PMCID: PMC9582488 DOI: 10.4143/crt.2021.890] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 11/15/2021] [Indexed: 11/21/2022] Open
Abstract
Purpose Estrogen receptor (ER) expression in breast cancer plays an essential role in carcinogenesis and disease progression. Recently, tumors with low level (1%–10%) of ER expression have been separately defined as ER low positive (ERlow). It is suggested that ERlow tumors might be morphologically and behaviorally different from tumors with high ER expression (ERhigh). Materials and Methods Retrospective analysis of a prospective cohort database was performed. Patients who underwent curative surgery for early breast cancer and had available medical records were included for analysis. Difference in clinicopathological characteristics, endocrine responsiveness and five-year recurrence-free survival was evaluated between different ER subgroups (ERhigh, ERlow, and ER-negative [ER−]). Results A total of 2,162 breast cancer patients were included in the analysis, Tis and T1 stage. Among them, 1,654 (76.5%) were ERhigh, 54 (2.5%) were ERlow, and 454 (21.0%) were ER− patients. ERlow cases were associated with smaller size, higher histologic grade, positive human epidermal growth factor receptor 2, negative progesterone receptor, and higher Ki-67 expression. Recurrence rate was highest in ER− tumors and was inversely proportional to ER expression. Recurrence-free survival was not affected by hormonal therapy in the ERlow group (p=0.418). Conclusion ERlow breast cancer showed distinct clinicopathological features. ERlow tumors seemed to have higher recurrence rates compared to ERhigh tumors, and they showed no significant benefit from hormonal therapy. Future large scale prospective studies are necessary to validate the treatment options for ERlow breast cancer.
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Affiliation(s)
- Kyung-Hwak Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Yeshong Park
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Eunyoung Kang
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Eun-Kyu Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Jee Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Se Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Koung Jin Suh
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sun Mi Kim
- Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Mijung Jang
- Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Bo La Yun
- Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - So Yeon Park
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hee-Chul Shin
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Fruit and vegetable consumption and incident breast cancer: a systematic review and meta-analysis of prospective studies. Br J Cancer 2021; 125:284-298. [PMID: 34006925 PMCID: PMC8292326 DOI: 10.1038/s41416-021-01373-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 02/22/2021] [Accepted: 03/16/2021] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND We conducted a systematic review and meta-analysis of prospective studies to clarify the relation of fruit and vegetable consumption with incident breast cancer. METHODS We searched systematically PubMed and EMBASE databases up to November 2020 to include prospective studies that reported the association of fruit and vegetable consumption with incident breast cancer. The pooled relative risks (RRs) and 95% confidence intervals (CIs) were calculated for the highest versus the lowest category of total fruit and vegetable, total fruit and total vegetable consumption, as well as fruit juice and subgroups of vegetables in relation to breast cancer incidence, using a random-effect model. RESULTS Total fruit and vegetable consumption was associated with lower overall (RR = 0.91, 95% CI = 0.87-0.95) and postmenopausal breast cancer risk (RR = 0.88, 95% CI = 0.79-0.99). Total fruit consumption was associated with lower overall (RR = 0.93, 95% CI = 0.88-0.99) and postmenopausal breast cancer risk (RR = 0.93, 95% CI = 0.87-0.99). Total fruit and vegetable intake were associated with 11% and 26% lower risk of oestrogen- and progesterone-receptor-positive (ER+/PR+) and -negative (ER-/PR-) breast cancer, respectively. Total vegetable consumption was associated with 27% lower risk of ER-/PR- breast cancer. Fruit juice consumption was associated with increased overall breast cancer risk (RR = 1.04, 95% CI = 1.01-1.07). We did not find significant associations for subgroups of vegetable intake and breast cancer risk. CONCLUSIONS These findings suggest that high total fruit and vegetable consumption are associated with reduced risk of overall, postmenopausal, ER+/PR+ and ER-/PR- breast cancer.
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Sørensen M, Poulsen AH, Kroman N, Hvidtfeldt UA, Thacher JD, Roswall N, Brandt J, Frohn LM, Jensen SS, Levin G, Raaschou-Nielsen O. Road and railway noise and risk for breast cancer: A nationwide study covering Denmark. ENVIRONMENTAL RESEARCH 2021; 195:110739. [PMID: 33460635 DOI: 10.1016/j.envres.2021.110739] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Previous studies have suggested that transportation noise may increase risk for breast cancer, but existing literature is scarce and inconclusive. We aimed to investigate associations between road traffic and railway noise and risk for breast cancer across the entire Danish female population. METHODS For all 2.8 million residential addresses across Denmark, we modelled road and railway noise at the most and least exposed façades for the period 1990-2017. We calculated 10-year time-weighted mean noise exposure for 1.8 million women aged >35 years, of whom 66,006 developed breast cancer during follow-up from 2000 to 2017. We analysed data using Cox proportional hazards models with noise exposure included as 10-year running means and adjusted for a number of individual and area-level socioeconomic co-variates and air pollution with fine particles estimated for all addresses. RESULTS For exposures at the least exposed façade, we found that a 10 dB increase in 10-year time-weighted noise was associated with incidence rate ratios (IRRs) and 95% confidence intervals (CI) for breast cancer of 1.032 (1.019-1.046) for road noise and 1.023 (0.993-1.053) for railway noise. For exposures at the most exposed façade, the IRRs (95% CIs) were 1.012 (1.002-1.022) for road noise and 1.020 (1.001-1.039) for railway noise. Associations were strongest among women with human epidermal growth factor receptor 2 negative breast cancer. CONCLUSIONS Road traffic and railway noise were associated with higher risk for breast cancer, especially noise at the least exposed façade, which is a proxy for noise exposure during sleep.
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Affiliation(s)
- Mette Sørensen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark.
| | - Aslak Harbo Poulsen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Niels Kroman
- Danish Cancer Society, Copenhagen, Denmark; Department of Breast Surgery, Herlev Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Jesse Daniel Thacher
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Nina Roswall
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Roskilde, Denmark; IClimate - Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, Denmark
| | - Lise Marie Frohn
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | | | - Gregor Levin
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Ole Raaschou-Nielsen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Environmental Science, Aarhus University, Roskilde, Denmark
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Clarke RB, Amini H, James P, von Euler-Chelpin M, Jørgensen JT, Mehta A, Cole-Hunter T, Westendorp R, Mortensen LH, Loft S, Brandt J, Hertel O, Ketzel M, Backalarz C, Andersen ZJ, Lim YH. Outdoor light at night and breast cancer incidence in the Danish Nurse Cohort. ENVIRONMENTAL RESEARCH 2021; 194:110631. [PMID: 33345898 DOI: 10.1016/j.envres.2020.110631] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Knowledge of the role of melatonin, xenograft experiments, and epidemiological studies suggests that exposure to light at night (LAN) may disturb circadian rhythms, possibly increasing the risk of developing breast cancer. OBJECTIVES We examined the association between residential outdoor LAN and the incidence of breast cancer: overall and subtypes classified by estrogen (ER) and progesterone (PR) receptor status. METHODS We used data on 16,941 nurses from the Danish Nurse Cohort who were followed-up from the cohort baseline in 1993 or 1999 through 2012 in the Danish Cancer Registry for breast cancer incidence and the Danish Breast Cancer Cooperative Group for breast cancer ER and PR status. LAN exposure data were obtained from the U.S. Defense Meteorological Satellite Program (DMSP) available for 1996, 1999, 2000, 2003, 2004, 2006, and 2010 in nW/cm2/sr unit, and assigned to the study participants' residence addresses during the follow-up. Time-varying Cox regression models were used to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between LAN and breast cancer, adjusting for individual characteristics, road traffic noise, and air pollution. RESULTS Of 16,941 nurses, 745 developed breast cancer in total during 320,289 person-years of follow-up. We found no association between exposure to LAN and overall breast cancer. In the fully adjusted models, HRs for the highest (65.8-446.4 nW/cm2/sr) and medium (22.0-65.7 nW/cm2/sr) LAN tertiles were 0.97 (95% CI: 0.77, 1.23) and 1.09 (95% CI: 0.90, 1.31), respectively, compared to the lowest tertile of LAN exposure (0-21.9 nW/cm2/sr). We found a suggestive association between LAN and ER-breast cancer. CONCLUSION This large cohort study of Danish female nurses suggests weak evidence of the association between LAN and breast cancer incidence.
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Affiliation(s)
- Rebecca B Clarke
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Heresh Amini
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States.
| | - Peter James
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, United States
| | - My von Euler-Chelpin
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeanette T Jørgensen
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Amar Mehta
- Section of Epidemiology, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Statistics Denmark, Copenhagen, Denmark
| | - Tom Cole-Hunter
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Centre for Air pollution, energy and health Research, University of Sydney, Sydney, Australia; International Laboratory for Air Quality and Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Rudi Westendorp
- Section of Epidemiology, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark
| | - Laust H Mortensen
- Section of Epidemiology, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Statistics Denmark, Copenhagen, Denmark
| | - Steffen Loft
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Aarhus, Denmark
| | - Ole Hertel
- Department of Environmental Science, Aarhus University, Aarhus, Denmark
| | - Matthias Ketzel
- Department of Environmental Science, Aarhus University, Aarhus, Denmark
| | | | - Zorana J Andersen
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Youn-Hee Lim
- Section of Environmental Health, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Seoul National University Medical Research Center, Seoul, Republic of Korea.
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Banerjee SC, Staley JM, Alexander K, Parker PA, Haviland KS, Moreno A, Walters CB. Sexual and Gender Minority Communication Skills (SGM Comskil) Training for Oncology Clinicians: Development, Implementation, and Preliminary Efficacy. ANNALS OF LGBTQ PUBLIC AND POPULATION HEALTH 2021; 2:35-52. [PMID: 37475763 PMCID: PMC10358276 DOI: 10.1891/lgbtq-2020-0016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Enhancing communicative competence of healthcare providers (HCPs) is a critical initiative for improving the healthcare experience of sexual and gender minority (SGM) cancer patients. This study presents the development, implementation, and preliminary efficacy of a new training curriculum for improving oncology HCPs' skills in providing a safe and welcoming environment for SGM cancer patients (SGM Comskil training). Thirty-three (N = 33) oncology HCPs including nurses, nurse leaders, and nurse practitioners participated in a 4.25-hour SGM Comskil Training between July and August 2019. Overall, participants reported highly favorable evaluations of the training, with more than 80% of the participants reacting positively to 12 of the 15 evaluation items assessing engagement and reflectiveness for experiential role-plays with lesbian, gay, bisexual (LGB) and transgender standardized patients (SPs), respectively. Participants also demonstrated significant improvements in SGM healthcare knowledge, self-efficacy, beliefs toward LGB and transgender persons, and SGM-sensitive language use skills following the training. Encouraged by the feasibility of conducting this experiential training with busy cancer care HCPs and the initial favorable participant evaluation of the SGM Comskil training, results clearly indicate that this training can be rolled out into clinical settings to ensure its translational potential. The next steps should assess observable changes in communication skills and SGM-sensitive language skills with SGM patients and improvements in SGM patients' healthcare experience.
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Affiliation(s)
| | | | | | | | | | - Aimee Moreno
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Alexander K, Walters CB, Banerjee SC. Oncology patients' preferences regarding sexual orientation and gender identity (SOGI) disclosure and room sharing. PATIENT EDUCATION AND COUNSELING 2020; 103:1041-1048. [PMID: 31862127 PMCID: PMC7188562 DOI: 10.1016/j.pec.2019.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 12/02/2019] [Accepted: 12/09/2019] [Indexed: 05/13/2023]
Abstract
OBJECTIVE Disproportionate rates of certain cancers exist among sexual and gender minority (SGM) older adults. Collecting sexual orientation and gender identity (SOGI) information is important in providing individualized care. This study assessed cancer patients' perceptions regarding SOGI questions, preferred ways to communicate SOGI information to healthcare providers and comfort in sharing room with SGM patients. METHODS 225 oncology patients completed self-reported surveys. Descriptive and stratified analyses were utilized to analyze patient perceptions regarding SOGI questions and to explore differences by demographic characteristics. RESULTS Participants reported favorable perceptions regarding gender, M = 4.48 (SD = .81), sex-at-birth, M = 4.51 (SD = .77), pronoun, M = 4.36 (SD = .87), and sexual orientation, M = 4.53 (SD = .74) questions, regardless of demographic characteristics (p > 0.05, for all stratified analyses). Overall, 56.7 % participants reported comfort in sharing room with someone of a different SO, 59.2 % cisgender men reported comfort in sharing room with a transgender man, and 37.8 % cisgender women reported comfort in sharing room with a transgender woman. CONCLUSION This study examined oncology patient perceptions regarding SOGI disclosure. The invisibility of SGM populations in the context of cancer care is directly attributable to the lack of SOGI data collection. PRACTICE IMPLICATIONS Cancer care institutions should gather SOGI data to provide individualized care to all cancer patients.
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Affiliation(s)
- Koshy Alexander
- Memorial Sloan Kettering Cancer Center, Department of Geriatrics, New York City, USA.
| | - Chasity B Walters
- Memorial Sloan Kettering Cancer Center, Patient & Caregiver Engagement, New York City, USA
| | - Smita C Banerjee
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York City, USA
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Ishiguro J, Ito H, Tsukamoto M, Iwata H, Nakagawa H, Matsuo K. A functional single nucleotide polymorphism in ABCC11, rs17822931, is associated with the risk of breast cancer in Japanese. Carcinogenesis 2020; 40:537-543. [PMID: 30883634 DOI: 10.1093/carcin/bgz005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 12/10/2018] [Accepted: 01/07/2019] [Indexed: 11/13/2022] Open
Abstract
The adenosine triphosphate-binding cassette (ABC) transporter superfamily consists of membrane proteins which translocate various substrates across membranes. Because ABCC11, a member ABC transporter, is highly expressed in breast cancer tissue, it may be involved in the efflux of conjugated estrogen metabolites. rs17822931, a functional single nucleotide polymorphism (SNP) in ABCC11, may play a role in the carcinogenesis of breast cancer via estrogen. Here, we aimed to evaluate the association between ABCC11 rs17822931 and breast cancer risk in a Japanese population. We conducted a case-control study in 697 patients with breast cancer and 1394 age- and menopausal status-matched controls within the framework of the Hospital-based Epidemiological Research Program at Aichi Cancer Center II (HERPACC II). The association was evaluated with odds ratios (ORs) and 95% confidence intervals (CIs) calculated using a conditional logistic model adjusted for potential confounders. In the per allele model, compared with the A allele, the G allele was inversely associated with breast cancer: OR, 0.77, 95% CI, 0.62-0.95 and P = 0.013. The stratified analyses showed that this polymorphism had a high impact on estrogen receptor (ER)-positive breast cancer risk and conditions assumed to correlate with high exposure to estrogen, namely no lactation and low soy intake. Our data showed that a significant association between rs17822931 and the risk of breast cancer, especially ER-positive breast cancer, in Japanese women. Compared to women with low estrogen efflux activity with the A allele, those with high efflux activity with the G allele may have a lower risk of breast cancer, particularly women with high estrogen exposure.
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Affiliation(s)
- Junko Ishiguro
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Kanokoden, Chikusa-ku, Aichi, Japan.,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Tsurumai, Showa-ku, Nagoya, Japan
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Kanokoden, Chikusa-ku, Aichi, Japan.,Division of Cancer Descriptive Epidemiology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, Japan
| | - Megumi Tsukamoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, Japan
| | - Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center Hospital, Kanokoden, Chikusa-ku, Aichi, Japan
| | - Hiroshi Nakagawa
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, Japan
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Kanokoden, Chikusa-ku, Aichi, Japan.,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Tsurumai, Showa-ku, Nagoya, Japan
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Guo JY, Wang MZ, Wang MS, Sun T, Wei FH, Yu XT, Wang C, Xu YY, Wang L. The Undervalued Effects of Polychlorinated Biphenyl Exposure on Breast Cancer. Clin Breast Cancer 2020; 20:12-18. [DOI: 10.1016/j.clbc.2019.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 07/07/2019] [Indexed: 12/26/2022]
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Benefield HC, Zabor EC, Shan Y, Allott EH, Begg CB, Troester MA. Evidence for Etiologic Subtypes of Breast Cancer in the Carolina Breast Cancer Study. Cancer Epidemiol Biomarkers Prev 2019; 28:1784-1791. [PMID: 31395590 PMCID: PMC6825567 DOI: 10.1158/1055-9965.epi-19-0365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/12/2019] [Accepted: 08/01/2019] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Distinctions in the etiology of triple-negative versus luminal breast cancer have become well established using immunohistochemical surrogates [notably estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2)]. However, it is unclear whether established immunohistochemical subtypes are the sole or definitive means of etiologically subdividing breast cancers. METHODS We evaluated clinical biomarkers and tumor suppressor p53 with risk factor data from cases and controls in the Carolina Breast Cancer Study, a population-based study of incident breast cancers. For each individual marker and combinations of markers, we calculated an aggregate measure to distinguish the etiologic heterogeneity of different classification schema. To compare schema, we estimated subtype-specific case-control odds ratios for individual risk factors and fit age-at-incidence curves with two-component mixture models. We also evaluated subtype concordance of metachronous contralateral breast tumors in the California Cancer Registry. RESULTS ER was the biomarker that individually explained the greatest variability in risk factor profiles. However, further subdivision by p53 significantly increased the degree of etiologic heterogeneity. Age at diagnosis, nulliparity, and race were heterogeneously associated with ER/p53 subtypes. The ER-/p53+ subtype exhibited a similar risk factor profile and age-at-incidence distribution to the triple-negative subtype. CONCLUSIONS Clinical marker-based intrinsic subtypes have established value, yet other schema may also yield important etiologic insights. IMPACT Novel environmental or genetic risk factors may be identifiable by considering different etiologic schema, including cross-classification based on ER/p53.
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Affiliation(s)
- Halei C Benefield
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
| | - Emily C Zabor
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yue Shan
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Emma H Allott
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, United Kingdom
| | - Colin B Begg
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Melissa A Troester
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Kresovich JK, Erdal S, Chen HY, Gann PH, Argos M, Rauscher GH. Metallic air pollutants and breast cancer heterogeneity. ENVIRONMENTAL RESEARCH 2019; 177:108639. [PMID: 31419716 PMCID: PMC6717519 DOI: 10.1016/j.envres.2019.108639] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 05/23/2023]
Abstract
BACKGROUND Emerging evidence suggests airborne metals may be associated with breast cancer risk. However, breast cancer is heterogenous and associations with heavy metals vary by subtype. Heavy metals possess both carcinogenic and xenoestrogenic properties which may be related to different tumor etiologies. Therefore, we tested for etiologic heterogeneity, using a case-series approach, to determine whether associations between residential airborne metal concentrations and breast cancer differed by tumor subtype. METHODS Between 2005 and 2008, we enrolled incident breast cancer cases into the Breast Cancer Care in Chicago study. Tumor estrogen and progesterone receptors status was determined by medical record abstraction and confirmed immunohistochemically (N = 696; 147 ER/PR-negative). The 2002 USEPA's National Air Toxics Assessment census-tract estimates of metal concentrations (antimony, arsenic, beryllium, cadmium, chromium, cobalt, lead, manganese, mercury, nickel and selenium) were matched to participants' residences of the same year. Adjusted logistic regression models were used to examine whether the airborne heavy metal associations differed by tumor ER/PR status. Principal component analysis was performed to assess associations by metal co-exposures. RESULTS Comparing the highest and lowest quintiles, higher concentrations of antimony (odds ratio[OR]: 1.8, 95% confidence interval[CI]: 0.9, 3.7, P-trend: 0.05), cadmium (OR: 2.3, 95% CI: 1.2, 4.4, P-trend: 0.04) and cobalt (OR: 2.0, 95% CI: 0.9, 4.4, P-trend: 0.04) were associated with ER/PR-negative breast cancer. Mixture analysis using principal components suggested co-exposures to multiple airborne heavy metals may drive associations with tumor receptor status. CONCLUSIONS Among women diagnosed with breast cancer, metallic air pollutants were associated with increased odds of developing ER/PR-negative breast cancer.
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Affiliation(s)
- Jacob K Kresovich
- Division of Epidemiology and Biostatisitics, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA.
| | - Serap Erdal
- Division of Environmental and Occupational Health Sciences, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA
| | - Hua Yun Chen
- Division of Epidemiology and Biostatisitics, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA
| | - Peter H Gann
- Division of Epidemiology and Biostatisitics, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA; Department of Pathology, University of Illinois at Chicago College of Medicine, Chicago, IL, 60612, USA
| | - Maria Argos
- Division of Epidemiology and Biostatisitics, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA
| | - Garth H Rauscher
- Division of Epidemiology and Biostatisitics, University of Illinois at Chicago School of Public Health, Chicago, IL, 60612, USA
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Dietary Inflammatory Index and Risk of Breast Cancer Based on Hormone Receptor Status: A Case-Control Study in Korea. Nutrients 2019; 11:nu11081949. [PMID: 31430979 PMCID: PMC6723443 DOI: 10.3390/nu11081949] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is the most common cancer in women globally, and the risk of developing breast cancer is associated with inflammation. The present study aimed to examine the association between the Dietary Inflammatory Index (DII®) and breast cancer in Korean women and investigate whether the tumor’s hormone receptor status affects this association. In this case-control study, we enrolled 364 breast cancer patients and 364 age-matched controls. DII scores were calculated from dietary intake evaluated by a 106-item food frequency questionnaire. The DII score was significantly higher in cases than in controls. After adjusting for potential confounders, the odds ratio (OR) of breast cancer was higher in the highest DII tertile (OR = 3.68, 95% confidence interval (CI): 2.34–5.80, p for trend < 0.0001) than in the lowest tertile. We found that higher DII scores were related to an increased risk of breast cancer for estrogen receptor (ER)+/progesterone receptor (PR)+ tumors regardless of menopausal status (OR = 2.59, 95% CI: 1.37–4.88 in the highest DII category, p for trend = 0.01 for premenopausal women; OR = 11.00, 95% CI: 2.93–41.30 in the highest DII category, p for trend = 0.0004 for postmenopausal women), but not for ER−/PR− status. Our results suggested that the DII scores are positively associated with breast cancer risk in Korean women and that this relationship is more robust in ER+/PR+ tumors.
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Nutrition and Breast Cancer: A Literature Review on Prevention, Treatment and Recurrence. Nutrients 2019; 11:nu11071514. [PMID: 31277273 PMCID: PMC6682953 DOI: 10.3390/nu11071514] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022] Open
Abstract
Breast cancer (BC) is the second most common cancer worldwide and the most commonly occurring malignancy in women. There is growing evidence that lifestyle factors, including diet, body weight and physical activity, may be associated with higher BC risk. However, the effect of dietary factors on BC recurrence and mortality is not clearly understood. Here, we provide an overview of the current evidence obtained from the PubMed databases in the last decade, assessing dietary patterns, as well as the consumption of specific food-stuffs/food-nutrients, in relation to BC incidence, recurrence and survival. Data from the published literature suggest that a healthy dietary pattern characterized by high intake of unrefined cereals, vegetables, fruit, nuts and olive oil, and a moderate/low consumption of saturated fatty acids and red meat, might improve overall survival after diagnosis of BC. BC patients undergoing chemotherapy and/or radiotherapy experience a variety of symptoms that worsen patient quality of life. Studies investigating nutritional interventions during BC treatment have shown that nutritional counselling and supplementation with some dietary constituents, such as EPA and/or DHA, might be useful in limiting drug-induced side effects, as well as in enhancing therapeutic efficacy. Therefore, nutritional intervention in BC patients may be considered an integral part of the multimodal therapeutic approach. However, further research utilizing dietary interventions in large clinical trials is required to definitively establish effective interventions in these patients, to improve long-term survival and quality of life.
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Healthy dietary patterns and risk and survival of breast cancer: a meta-analysis of cohort studies. Cancer Causes Control 2019; 30:835-846. [PMID: 31165965 DOI: 10.1007/s10552-019-01193-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 05/30/2019] [Indexed: 12/31/2022]
Abstract
PURPOSES Dietary patterns have been found to be associated with the overall cancer risk and survival. However, the associations of healthy dietary patterns and breast cancer remain unclear. We aimed to conduct a meta-analysis of prospective cohort studies to estimate the pooled results of the association of healthy dietary patterns with breast cancer risk and survival. METHODS PubMed, EMBASE, and Web of Science were searched for literature published until June 24th, 2018 that examined the associations between healthy dietary patterns and breast cancer risk and survival. Risk ratios (RRs) and 95% confidence intervals (CIs) were calculated by using a random-effects model for meta-analysis. RESULTS There were 32 articles retrieved for the meta-analysis, with 27 for breast cancer risk and five for breast cancer survival. There was a statistically significant lower risk of breast cancer associated with healthy dietary patterns (RR = 0.93, 95% CI: 0.88, 0.98). Subgroup analysis results suggested that there was an inverse association between breast cancer risk and posterori-derived healthy patterns, but no statistically significant associations were found in other stratified subgroups (a priori-derived diet, study region, menopausal status, or breast cancer subtypes). Healthy dietary patterns were associated inversely with all-cause mortality (RR = 0.76, 95% CI: 0.63, 0.92); however, no association was found for breast cancer-specific mortality. CONCLUSIONS The results suggested that healthy dietary patterns might be associated with a reduced risk of breast cancer and all-cause mortality among breast cancer patients. It could be clinically relevant to promote healthy dietary patterns for breast cancer prevention and improve survival among breast cancer patients.
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40
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Ramchand SK, Cheung YM, Yeo B, Grossmann M. The effects of adjuvant endocrine therapy on bone health in women with breast cancer. J Endocrinol 2019; 241:R111-R124. [PMID: 30991355 DOI: 10.1530/joe-19-0077] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/15/2019] [Indexed: 01/01/2023]
Abstract
In women with oestrogen receptor (ER)-positive early breast cancer, oestradiol is important for breast cancer development and progression. Endocrine therapy prevents the deleterious effects of oestradiol in breast tissue by systemically depleting oestradiol concentration (aromatase inhibitors) or preventing its local action in breast tissue (selective oestrogen receptor modulators i.e. tamoxifen), thereby improving oncological outcomes. Use of aromatase inhibitors in postmenopausal women and ovarian function suppression with either tamoxifen or aromatase inhibition in premenopausal women, consequent to systemic oestradiol depletion, exerts detrimental effects on skeletal health. The oestradiol-deficient state causes increased bone remodelling and a negative bone balance. This results in bone loss, microstructural deterioration and bone fragility predisposing to fractures. Similar effects are also seen with tamoxifen in premenopausal women. In contrast, use of tamoxifen in postmenopausal women appears to exert protective effects on bone but studies on fracture risk are inconclusive. The longevity of women with ER-positive breast cancer treated with adjuvant endocrine therapy emphasises the need to mitigate the adverse skeletal effects of these therapies in order to maximise benefit. In general, fractures are associated with increased morbidity, mortality and are a high socioeconomic burden. Whilst the efficacy of antiresorptive therapy in preventing bone mineral density loss in postmenopausal women has been established, further clinical trial evidence is required to provide guidance regarding fracture risk reduction, when to initiate and stop treatment, choice of agent and optimal management of bone health in premenopausal women receiving endocrine therapy. In addition, potential oncological benefits of antiresorptive therapies will also need to be considered.
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Affiliation(s)
- Sabashini K Ramchand
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
| | - Yee-Ming Cheung
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
| | - Belinda Yeo
- Department of Oncology, Austin Health, Heidelberg, Victoria, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
| | - Mathis Grossmann
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
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41
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Sangaramoorthy M, Hines LM, Torres-Mejía G, Phipps AI, Baumgartner KB, Wu AH, Koo J, Ingles SA, Slattery ML, John EM. A Pooled Analysis of Breastfeeding and Breast Cancer Risk by Hormone Receptor Status in Parous Hispanic Women. Epidemiology 2019; 30:449-457. [PMID: 30964816 PMCID: PMC6472273 DOI: 10.1097/ede.0000000000000981] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Data on breastfeeding and breast cancer risk are sparse and inconsistent for Hispanic women. METHODS Pooling data for nearly 6,000 parous Hispanic women from four population-based studies conducted between 1995 and 2007 in the United States and Mexico, we examined the association of breastfeeding with risk of breast cancer overall and subtypes defined by estrogen receptor (ER) and progesterone receptor (PR) status, and the joint effects of breastfeeding, parity, and age at first birth. We calculated odds ratios (ORs) and 95% confidence intervals (CIs) using logistic regression. RESULTS Among parous Hispanic women, older age at first birth was associated with increased breast cancer risk, whereas parity was associated with reduced risk. These associations were found for hormone receptor positive (HR+) breast cancer only and limited to premenopausal women. Age at first birth and parity were not associated with risk of ER- and PR- breast cancer. Increasing duration of breastfeeding was associated with decreasing breast cancer risk (≥25 vs. 0 months: OR = 0.73; 95% CI = 0.60, 0.89; Ptrend = 0.03), with no heterogeneity by menopausal status or subtype. At each parity level, breastfeeding further reduced HR+ breast cancer risk. Additionally, breastfeeding attenuated the increase in risk of HR+ breast cancer associated with older age at first birth. CONCLUSIONS Our findings suggest that breastfeeding is associated with reduced risk of both HR+ and ER- and PR- breast cancer among Hispanic women, as reported for other populations, and may attenuate the increased risk in women with a first pregnancy at older ages.
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Affiliation(s)
| | - Lisa M. Hines
- Department of Biology, University of Colorado at Colorado Springs, Colorado Springs, CO 80918
| | - Gabriela Torres-Mejía
- Instituto Nacional de Salud Puública, Population Health Research Center, Cuernavaca Morelos,
Mexico
| | - Amanda I. Phipps
- Department of Epidemiology, University of Washington, Seattle, WA 98195
- Epidemiology Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA
98109
| | - Kathy B. Baumgartner
- Department of Epidemiology and Population Health, School of Public Health & Information Sciences, James
Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202
| | - Anna H. Wu
- Department of Preventive Medicine, Keck School of Medicine of USC, Norris Comprehensive Cancer Center,
University of Southern California, Los Angeles, CA 90089
| | - Jocelyn Koo
- Cancer Prevention Institute of California, Fremont, CA 94538
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94304
| | - Sue A. Ingles
- Department of Preventive Medicine, Keck School of Medicine of USC, Norris Comprehensive Cancer Center,
University of Southern California, Los Angeles, CA 90089
| | | | - Esther M. John
- Cancer Prevention Institute of California, Fremont, CA 94538
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94304
- Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, CA
94304
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42
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Petimar J, Park YMM, Smith-Warner SA, Fung TT, Sandler DP. Dietary index scores and invasive breast cancer risk among women with a family history of breast cancer. Am J Clin Nutr 2019; 109:1393-1401. [PMID: 30968114 PMCID: PMC6499503 DOI: 10.1093/ajcn/nqy392] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 12/28/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Many epidemiologic studies have analyzed the relations of individual foods and nutrients and breast cancer risk with inconsistent results. Few studies have examined recommendation-based dietary indices and breast cancer risk. OBJECTIVE The aim of this study was to determine associations between recommendation-based dietary index scores and incident invasive breast cancer. METHODS The Sister Study is a prospective cohort of 50,884 US women (baseline: 2003-2009) who had a sister with breast cancer but no prior breast cancer themselves. We created scores for the Dietary Approaches to Stop Hypertension (DASH) diet, Alternative Mediterranean Diet (AMED), and Alternative Healthy Eating Index-2010 (AHEI-2010) from dietary intakes estimated by a baseline-validated Block food-frequency questionnaire (FFQ). We used Cox regression to estimate multivariable-adjusted HRs and 95% CIs for total invasive breast cancer risk and by estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2) status. RESULTS We documented 1,700 invasive breast cancer cases through 2015 (mean follow-up, 7.6 y). Individuals in the highest quartile of DASH scores had a lower risk of invasive breast cancer compared with those in the lowest quartile (HR: 0.78; 95% CI: 0.67, 0.90; P-trend = 0.001), with stronger associations for ER- (HR: 0.61; 95% CI: 0.40, 0.94; P-trend = 0.006) as well as ER-/PR- and ER-/PR-/HER2- subtypes. AHEI-2010 (HR for highest compared with lowest quartile: 0.90; 95% CI: 0.78, 1.03; P-trend = 0.15) and AMED (HR for highest compared with lowest quartile: 0.90; 95% CI: 0.77, 1.06; P-trend = 0.07) were weakly and nonsignificantly associated with breast cancer risk, but after excluding alcohol, AHEI-2010 was inversely associated with risk of ER-/PR- (HR: 0.64; 95% CI: 0.42, 0.98; P-trend = 0.04) and ER-/PR-/HER2- subtypes. We did not observe any significant interactions by menopausal status or other participant characteristics. CONCLUSIONS DASH scores were inversely associated with breast cancer risk; DASH and AHEI-2010 scores excluding alcohol were particularly inversely associated with risk of ER-/PR- and ER-/PR-/HER2- breast cancers. This trial was registered at clinicaltrials.gov as NCT00047970.
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Affiliation(s)
- Joshua Petimar
- Department of Nutrition and Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA,Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA
| | - Yong-Moon Mark Park
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC,Address correspondence to Y-MMP (e-mail: )
| | - Stephanie A Smith-Warner
- Department of Nutrition and Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA,Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA
| | - Teresa T Fung
- Department of Nutrition and Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA,Department of Nutrition, Simmons University, Boston, MA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC,Address correspondence to DPS (e-mail: )
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Inflammatory and other breast cancer incidence rate trends by estrogen receptor status in the Surveillance, Epidemiology, and End Results database (2001-2015). Breast Cancer Res Treat 2019; 175:755-764. [PMID: 30915662 DOI: 10.1007/s10549-019-05193-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 03/05/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Inflammatory breast cancer (IBC) rates increased in the United States before the turn of the twenty-first century. We examine trends by estrogen receptor (ER) status since then. METHODS Using data from the Surveillance, Epidemiology, and End Results (SEER) program for years 2001-2015, we calculated age-adjusted incidence rates for IBC (defined by AJCC TNM category T4d, extent of disease codes, and morphology code 8530) by ER status, which was imputed if unknown, among women aged 25-84 years. For comparison, we included other locally advanced breast cancer and other breast cancers partitioned into localized and regional/distant/unstaged. We fit joinpoint log-linear models to annual rates to calculate annual percentage change (APC) and average annual percentage change (AAPC). RESULTS The rate of increase in ER+ IBC rates among women aged 25-44 (AAPC = 0.5) was similar to other advanced tumor types, but declines among women aged 45-84 (AAPC = - 2.2) were more rapid. Declines in ER- IBC rates for women aged 25-84 (AAPC = - 3.7) were more rapid than for other tumor types. CONCLUSIONS Our results show a reversal of the rising rates of IBC overall reported at the end of the twentieth century. Direction of trends for IBC is consistent with other breast cancer types, except for ER+ localized breast cancer in older women. Decreasing parity and rising prevalence of older age at first birth may contribute to declining rates of ER- IBC. Otherwise, patterns of changing risk factors are inconsistent with the trends we observed. Further studies of IBC are necessary to identify additional risk factors and possible preventive strategies.
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44
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Yu L, Liu L, Wang F, Zhou F, Xiang Y, Huang S, Yin G, Zhuo Y, Ma Z, Zhang Q, Yu Z. Higher frequency of dairy intake is associated with a reduced risk of breast cancer: Results from a case-control study in Northern and Eastern China. Oncol Lett 2019; 17:2737-2744. [PMID: 30854047 PMCID: PMC6365923 DOI: 10.3892/ol.2019.9898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 12/31/2018] [Indexed: 11/24/2022] Open
Abstract
The association between dairy intake and breast cancer risk has not been well investigated, especially in the Chinese population. This study aimed to examine the association between the weekly frequency of dairy intake and the risk of breast cancer among women in Northern and Eastern China, and to investigate whether the association varied by hormone receptor status. A total of 1,286 cases of breast cancer and 1,461 controls were enrolled in this study. Dairy intake was obtained using a food-frequency questionnaire (FFQ). Frequency of dairy intake per week was divided into four categories (<1 day/week, 1–2 days/week, 3–4 days/week and 5–7 days/week). Unconditional multivariate logistic regression analysis was used to estimate odds ratios (ORs) and 95% confidence intervals (95% CI). Stratified analyses were performed by residence, age, and education level. Separate analyses were also conducted for different estrogen receptor (ER) and progesterone receptor (PR) status. This analysis revealed that weekly frequency of dairy intake was strongly inversely associated with breast cancer risk, with an adjusted OR for intake 5–7 days/week of 0.53 (95% CI=0.39–0.72, P<0.001 for trend). In the stratified analyses, women who consumed dairy 5–7 days/week had a lower risk of breast cancer in urban areas (OR=0.45, 95% CI=0.30–0.66, P<0.001 for trend), in the group 45–59 years old (OR=0.39, 95% CI=0.26–0.60, P<0.001 for trend), and in the group educated to senior high school or above (OR=0.39, 95% CI=0.25–0.59, P<0.001 for trend). There was an inverse association between the weekly frequency of dairy intake and the risk of ER+, PR+, and ER+PR+ breast cancer (all P<0.001 for trend). These results indicated that the weekly frequency of dairy intake was inversely associated with the risk of breast cancer among women in Northern and Eastern China.
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Affiliation(s)
- Lixiang Yu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Liyuan Liu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Fei Wang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Fei Zhou
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yujuan Xiang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Shuya Huang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Gengshen Yin
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yingjie Zhuo
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Zhongbing Ma
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Qiang Zhang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Zhigang Yu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, Shandong 250033, P.R. China.,Suzhou Institute, Shandong University, Suzhou, Jiangsu 215123, P.R. China
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Long-Term Whole Grain Wheat and Rye Intake Reflected by Adipose Tissue Alkylresorcinols and Breast Cancer: A Case-Cohort Study. Nutrients 2019; 11:nu11020465. [PMID: 30813337 PMCID: PMC6412439 DOI: 10.3390/nu11020465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 12/30/2022] Open
Abstract
Whole grain rye (WGR) and whole grain wheat (WGW) have been suggested to protect against the development of breast cancer. In this study, we estimated long-term intake of WGR and WGW, using both a food frequency questionnaire (FFQ) and alkylresorcinol concentrations in adipose tissue biopsies, in relation to the risk of developing invasive breast cancer in a case-cohort study (n = 414 in the case group, n = 933 in the subcohort group) on the Danish “Diet, Cancer and Health” cohort. The median follow-up time of the subcohort was 5.3 years. Total WGR and WGW intake estimated with FFQ or reflected by total alkylresorcinol concentration in adipose tissue was not significantly associated with risk of breast cancer. However, after adjustment for total WGR and WGW intake, women in the highest quartile of relative WGR intake, reflected by the alkylresorcinol C17:0/C21:0 ratio, had a higher risk of overall breast cancer and estrogen-receptor-positive (ER+) breast cancer than women in the lowest quartile of relative WGR intake, while the risk of estrogen-receptor-negative (ER-) breast cancer incidence was unaffected. Similar results were obtained with the FFQ data. Based on these data, further investigation of the role of specific grain types in reducing or increasing breast cancer risk, and their overall impact on health, is warranted.
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Zhang L, Huang Y, Feng Z, Wang X, Li H, Song F, Liu L, Li J, Zheng H, Wang P, Song F, Chen K. Comparison of breast cancer risk factors among molecular subtypes: A case-only study. Cancer Med 2019; 8:1882-1892. [PMID: 30761775 PMCID: PMC6488156 DOI: 10.1002/cam4.2012] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/07/2019] [Accepted: 01/16/2019] [Indexed: 01/08/2023] Open
Abstract
Epidemiological studies have a clear definition of the risk factors for breast cancer. However, it is unknown whether the distribution of these factors differs among breast cancer subtypes. We conducted a hospital‐based case‐only study consisting of 8067 breast cancer patients basing on the Tianjin Cohort of Breast Cancer Cases. Major breast cancer subtypes including luminal A, luminal B, human epidermal growth factor receptor 2 (HER2)‐enriched and basal‐like were defined by estrogen receptor, progesterone receptor, HER2, and Ki‐67 status. Variables including demographic characteristics, reproductive factors, lifestyle habits, imaging examination, and clinicopathologic data were collected for patients. Chi‐square test and one‐way analysis of variance were used to compare the distributions of variables among the four breast cancer subtypes. Multivariate logistic regression was used to estimate the odds ratios and associated 95% confidence intervals where luminal A patients served as the reference group. Overall, more commonality rather than heterogeneity on the distributions of factors was found between the four molecular subtypes of breast cancer. The proportion of overweight and obesity were lower in HER2‐enriched subtype. Women with age at menarche ≤13 years were more likely to be found in basal‐like subtype. Postmenopausal women were more frequent in HER2‐enriched and basal‐like subtypes. Women with benign breast disease and higher breast density were more common in HER2‐enriched subtype. Risk factor scoring showed that total risk scores were similar among the four subtypes. HER2‐enriched and basal‐like subtypes were more frequently diagnosed with large tumors. Calcification was more likely to be found in luminal B and HER2‐enriched subtypes, whereas less distributed in basal‐like subtype. Most of the breast cancer risk factors were similarly distributed among the four major breast cancer subtypes; commonality is predominant.
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Affiliation(s)
- Liwen Zhang
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Yubei Huang
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Ziwei Feng
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Xin Wang
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Haixin Li
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China.,Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Department of Cancer Biobank, National Clinical Research Centre of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Fangfang Song
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Luyang Liu
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Junxian Li
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Hong Zheng
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Peishan Wang
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Fengju Song
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Kexin Chen
- Key Laboratory of Breast Cancer Prevention and Therapy in Ministry of Education, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
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Schabath MB, Blackburn CA, Sutter ME, Kanetsky PA, Vadaparampil ST, Simmons VN, Sanchez JA, Sutton SK, Quinn GP. National Survey of Oncologists at National Cancer Institute-Designated Comprehensive Cancer Centers: Attitudes, Knowledge, and Practice Behaviors About LGBTQ Patients With Cancer. J Clin Oncol 2019; 37:547-558. [PMID: 30650044 DOI: 10.1200/jco.18.00551] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
PURPOSE To identify potential gaps in attitudes, knowledge, and institutional practices toward lesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ) patients, a national survey of oncologists at National Cancer Institute-Designated Comprehensive Cancer Centers was conducted to measure these attributes related to LGBTQ patients and desire for future training and education. METHODS A random sample of 450 oncologists from 45 cancer centers was selected from the American Medical Association's Physician Masterfile to complete a survey measuring attitudes and knowledge about LGBTQ health and institutional practices. Results were quantified using descriptive and stratified analyses and by a novel attitude summary measure. RESULTS Of the 149 respondents, there was high agreement (65.8%) regarding the importance of knowing the gender identity of patients, which was contrasted by low agreement (39.6%) regarding the importance of knowing sexual orientation. There was high interest in receiving education regarding the unique health needs of LGBTQ patients (70.4%), and knowledge questions yielded high percentages of "neutral" and "do not know or prefer not to answer" responses. After completing the survey, there was a significant decrease ( P < .001) in confidence in knowledge of health needs for LGB (53.1% agreed they were confident during survey assessment v 38.9% postsurvey) and transgender patients (36.9% v 19.5% postsurvey). Stratified analyses revealed some but limited influence on attitudes and knowledge by having LGBTQ friends and/or family members, political affiliation, oncology specialty, years since graduation, and respondents' region of the country. CONCLUSION This was the first nationwide study, to our knowledge, of oncologists assessing attitudes, knowledge, and institutional practices of LGBTQ patients with cancer. Overall, there was limited knowledge about LGBTQ health and cancer needs but a high interest in receiving education regarding this community.
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Affiliation(s)
| | | | - Megan E Sutter
- 1 H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Peter A Kanetsky
- 1 H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | | | - Vani N Simmons
- 1 H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Julian A Sanchez
- 1 H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Steven K Sutton
- 1 H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
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48
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Tavolaro P, Catalano S, Tavolaro A. Anticancer activity modulation of an innovative solid formulation of extra virgin olive oil by cultured zeolite scaffolds. Food Chem Toxicol 2018; 124:139-150. [PMID: 30521875 DOI: 10.1016/j.fct.2018.11.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
Abstract
This paper deals with the design and manufacture of pure and hybrid synthetic (Mixed Matrix Membranes, MMMs) zeolite scaffolds (containing various amount of zeolite crystals dispersed in a polymeric matrix) to obtain new biomaterials. These scaffolds can potentially be used in the field of translational medicine to obtain innovative results to address tumorigenesis mechanisms with the promotion of an effort to deal with technical methods and information. Since olive oil has beneficial effects in healthy human cells and slows down and/or inhibits cell growth, the aim of this work was to monitor the protective and beneficial antitumor effects of olive oil in a new solid formulation (Spread Bio-Oil) on cancer cell cultured on zeolite scaffolds. In order to investigate the cytotoxicity of the new bio-oil spread and to test antiproliferative activity on the cancer cells we used two phenotypically different human breast cancer cell lines (MCF-7 and MDA-MB-231) seeded on various morphologies of zeolite membranes. We report the fabrication and characterization of pure and hybrid (MMMs) zeolite membranes and evaluated the intensively cell adhesion, spreading and cell growth by adhesion test, MTT, optical microscopy analyses and Scanning Electronic Microscopy (SEM) microphotography analyses. Our results demonstrate that both cell lines adhered and grow on all zeolite surfaces and that both show better viability after Spread Bio-Oil treatments. All cell adhesions are a specific membrane-type and, in particular, MCF-7 cells interact and adhere preferentially on pure zeolite membranes. Cancer cells seem to recognize and prefer the characteristics of the supports according to the following trend: Co-ZSM-5 > Co-S-1 > 13X. Moreover, Co-ZSM-5 zeolite membranes were the best scaffolds and MDA-MB-231 cells after administration of Spread Bio-Oil showed less viability with respect to MCF-7 responding better to all concentrations of the innovative food. Our data indicate that Spread Bio-Oil decreases at very low concentration values (5, 10, 25, 50, 100, 200 and 300 μg/mL) cell proliferation in a dose- and time-dependent manner. The work confirms both the superiority of pure zeolite scaffolds for cultures of human normal and cancer cells and Spread Bio-Oil as an innovative food preserving all the beneficial and healthy properties of the extra virgin olive oil from which it derives.
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Affiliation(s)
- Palmira Tavolaro
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Cubo 4/c, 87036, Rende, Italy.
| | - Silvia Catalano
- Department of Physics, Via Bucci cubo 33/c, University of Calabria, I-87030 Arcavacata di Rende, Italy
| | - Adalgisa Tavolaro
- Research Institute on Membrane Technology, Unit of Zeolite Membranes, ITM-CNR, University of Calabria, Cubo 17/c, 87036, Rende, Italy
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49
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Park YMM, Steck SE, Fung TT, Merchant AT, Elizabeth Hodgson M, Keller JA, Sandler DP. Higher diet-dependent acid load is associated with risk of breast cancer: Findings from the sister study. Int J Cancer 2018; 144:1834-1843. [PMID: 30247761 DOI: 10.1002/ijc.31889] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/16/2018] [Accepted: 09/10/2018] [Indexed: 01/22/2023]
Abstract
Dietary factors that contribute to chronic low-grade metabolic acidosis have been linked to breast cancer risk, but to date no epidemiologic study has examined diet-dependent acid load and breast cancer. We used data from 43,570 Sister Study participants who completed a validated food frequency questionnaire at enrollment (2003-2009) and satisfied eligibility criteria. The Potential Renal Acid Load (PRAL) score was used to estimate diet-dependent acid load. Higher scores reflect greater consumption of protein and phosphorus, and lower consumption of potassium, calcium and magnesium. The association between PRAL and breast cancer was evaluated using multivariable Cox proportional hazards regression. We identified 1,614 invasive breast cancers diagnosed at least 1 year after enrollment (mean follow-up, 7.6 years). The highest PRAL quartile, reflecting greater acid-forming potential, was associated with increased risk of breast cancer (HRhighest vs. lowest quartile : 1.21 [95% CI, 1.04-1.41], ptrend = 0.04). The association was more pronounced for estrogen receptor (ER)-negative (HRhighest vs. lowest quartile : 1.67 [95% CI, 1.07-2.61], ptrend = 0.03) and triple-negative breast cancer (HRhighest vs. lowest quartile : 2.20 [95% CI, 1.23-3.95], ptrend = 0.02). Negative PRAL scores, representing consumption of alkaline diets, were associated with decreased risk of ER-negative and triple-negative breast cancer, compared to a PRAL score of 0 representing neutral pH. Higher diet-dependent acid load may be a risk factor for breast cancer while alkaline diets may be protective. Since PRAL scores are positively correlated with meat consumption and negatively correlated with fruit and vegetable intake, results also suggest that diets high in fruits and vegetables and low in meat may be protective against hormone receptor negative breast cancer.
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Affiliation(s)
- Yong-Moon Mark Park
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Susan E Steck
- Cancer Prevention and Control Program, University of South Carolina, Columbia, SC.,Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC
| | - Teresa T Fung
- Department of Nutrition, Simmons College, Boston, MA.,Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA
| | - Anwar T Merchant
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC
| | | | | | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC
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50
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Li K, Anderson G, Viallon V, Arveux P, Kvaskoff M, Fournier A, Krogh V, Tumino R, Sánchez MJ, Ardanaz E, Chirlaque MD, Agudo A, Muller DC, Smith T, Tzoulaki I, Key TJ, Bueno-de-Mesquita B, Trichopoulou A, Bamia C, Orfanos P, Kaaks R, Hüsing A, Fortner RT, Zeleniuch-Jacquotte A, Sund M, Dahm CC, Overvad K, Aune D, Weiderpass E, Romieu I, Riboli E, Gunter MJ, Dossus L, Prentice R, Ferrari P. Risk prediction for estrogen receptor-specific breast cancers in two large prospective cohorts. Breast Cancer Res 2018; 20:147. [PMID: 30509329 PMCID: PMC6276150 DOI: 10.1186/s13058-018-1073-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 11/04/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Few published breast cancer (BC) risk prediction models consider the heterogeneity of predictor variables between estrogen-receptor positive (ER+) and negative (ER-) tumors. Using data from two large cohorts, we examined whether modeling this heterogeneity could improve prediction. METHODS We built two models, for ER+ (ModelER+) and ER- tumors (ModelER-), respectively, in 281,330 women (51% postmenopausal at recruitment) from the European Prospective Investigation into Cancer and Nutrition cohort. Discrimination (C-statistic) and calibration (the agreement between predicted and observed tumor risks) were assessed both internally and externally in 82,319 postmenopausal women from the Women's Health Initiative study. We performed decision curve analysis to compare ModelER+ and the Gail model (ModelGail) regarding their applicability in risk assessment for chemoprevention. RESULTS Parity, number of full-term pregnancies, age at first full-term pregnancy and body height were only associated with ER+ tumors. Menopausal status, age at menarche and at menopause, hormone replacement therapy, postmenopausal body mass index, and alcohol intake were homogeneously associated with ER+ and ER- tumors. Internal validation yielded a C-statistic of 0.64 for ModelER+ and 0.59 for ModelER-. External validation reduced the C-statistic of ModelER+ (0.59) and ModelGail (0.57). In external evaluation of calibration, ModelER+ outperformed the ModelGail: the former led to a 9% overestimation of the risk of ER+ tumors, while the latter yielded a 22% underestimation of the overall BC risk. Compared with the treat-all strategy, ModelER+ produced equal or higher net benefits irrespective of the benefit-to-harm ratio of chemoprevention, while ModelGail did not produce higher net benefits unless the benefit-to-harm ratio was below 50. The clinical applicability, i.e. the area defined by the net benefit curve and the treat-all and treat-none strategies, was 12.7 × 10- 6 for ModelER+ and 3.0 × 10- 6 for ModelGail. CONCLUSIONS Modeling heterogeneous epidemiological risk factors might yield little improvement in BC risk prediction. Nevertheless, a model specifically predictive of ER+ tumor risk could be more applicable than an omnibus model in risk assessment for chemoprevention.
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Affiliation(s)
- Kuanrong Li
- Nutritional Methodology and Biostatistics Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon Cedex 08, France
| | - Garnet Anderson
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Vivian Viallon
- Nutritional Methodology and Biostatistics Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon Cedex 08, France
| | - Patrick Arveux
- Breast and Gynaecologic Cancer Registry of Côte d’Or, Georges-François Leclerc Comprehensive Cancer Care Centre, Dijon, France
- EA 4184, Medical School, University of Burgundy, Dijon, France
- CESP, INSERM U1018, Univ. Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Marina Kvaskoff
- CESP, INSERM U1018, Univ. Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Agnès Fournier
- CESP, INSERM U1018, Univ. Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Vittorio Krogh
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, “Civic-M. P.Arezzo” Hospital, ASP, Ragusa, Italy
| | - Maria-Jose Sánchez
- Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria ibs. GRANADA, Hospitales Universitarios de Granada/ Universidad de Granada, Granada, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Eva Ardanaz
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - María-Dolores Chirlaque
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- Department of Health and Social Sciences, Universidad de Murcia, Murcia, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer. Cancer Epidemiology Research Program, Catalan Institute of Oncology-IDIBELL. L’Hospitalet de Llobregat, Barcelona, Spain
| | - David C. Muller
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Todd Smith
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Ioanna Tzoulaki
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Timothy J. Key
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Bas Bueno-de-Mesquita
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
- Department for Determinants of Chronic Diseases, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
- Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, The Netherlands
- Department of Social & Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Antonia Trichopoulou
- Hellenic Health Foundation, Athens, Greece
- WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Christina Bamia
- Hellenic Health Foundation, Athens, Greece
- WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Philippos Orfanos
- Hellenic Health Foundation, Athens, Greece
- WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Anika Hüsing
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Renée T. Fortner
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Anne Zeleniuch-Jacquotte
- Department of Population Health, New York University School of Medicine, New York, USA
- Department of Environmental Medicine, New York University School of Medicine, New York, USA
- Perlmutter Cancer Center, New York University School of Medicine, New York, USA
- Department of Public Health and Clinical Medicine, Nutritional Research, Umeå University, Umeå, Sweden
| | - Malin Sund
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Christina C. Dahm
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Kim Overvad
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Dagfinn Aune
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
- Department of Nutrition, Bjørknes University College, Oslo, Norway
| | - Elisabete Weiderpass
- Department of Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Isabelle Romieu
- Nutritional Epidemiology Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Elio Riboli
- Department of Epidemiology & Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Marc J. Gunter
- Nutritional Epidemiology Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Laure Dossus
- Biomarkers Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Ross Prentice
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Pietro Ferrari
- Nutritional Methodology and Biostatistics Group, Nutrition and Metabolism Section, International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon Cedex 08, France
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