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Getz KR, Jeon MS, Luo C, Luo J, Toriola AT. Lipidome of mammographic breast density in premenopausal women. Breast Cancer Res 2023; 25:121. [PMID: 37814330 PMCID: PMC10561435 DOI: 10.1186/s13058-023-01725-1] [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: 07/25/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND High mammographic breast density (MBD) is a strong risk factor for breast cancer development, but the biological mechanisms underlying MBD are unclear. Lipids play important roles in cell differentiation, and perturbations in lipid metabolism are implicated in cancer development. Nevertheless, no study has applied untargeted lipidomics to profile the lipidome of MBD. Through this study, our goal is to characterize the lipidome of MBD in premenopausal women. METHODS Premenopausal women were recruited during their annual screening mammogram at the Washington University School of Medicine in St. Louis, MO. Untargeted lipidomic profiling for 982 lipid species was performed at Metabolon (Durham, NC®), and volumetric measures of MBD (volumetric percent density (VPD), dense volume (DV), and non-dense volume (NDV)) was assessed using Volpara 1.5 (Volpara Health®). We performed multivariable linear regression models to investigate the associations of lipid species with MBD and calculated the covariate-adjusted least square mean of MBD by quartiles of lipid species. MBD measures were log10 transformed, and lipid species were standardized. Linear coefficients of MBD were back-transformed and considered significant if the Bonferroni corrected p-value was < 0.05. RESULTS Of the 705 premenopausal women, 72% were non-Hispanic white, and 23% were non-Hispanic black. Mean age, and BMI were 46 years and 30 kg/m2, respectively. Fifty-six lipid species were significantly associated with VPD (52 inversely and 4 positively). The lipid species with positive associations were phosphatidylcholine (PC)(18:1/18:1), lysophosphatidylcholine (LPC)(18:1), lactosylceramide (LCER)(14:0), and phosphatidylinositol (PI)(18:1/18:1). VPD increased across quartiles of PI(18:1/18:1): (Q1 = 7.5%, Q2 = 7.7%, Q3 = 8.4%, Q4 = 9.4%, Bonferroni p-trend = 0.02). The lipid species that were inversely associated with VPD were mostly from the triacylglycerol (N = 43) and diacylglycerol (N = 7) sub-pathways. Lipid species explained some of the variation in VPD. The inclusion of lipid species increased the adjusted R2 from 0.45, for a model that includes known determinants of VPD, to 0.59. CONCLUSIONS We report novel lipid species that are associated with MBD in premenopausal women. Studies are needed to validate our results and the translational potential.
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Affiliation(s)
- Kayla R Getz
- Division of Public Health Sciences, Department of Surgery, School of Medicine, Washington University, 660 South Euclid Avenue, Box 8100, St. Louis, MO, 63110, USA
| | - Myung Sik Jeon
- Division of Public Health Sciences, Department of Surgery, School of Medicine, Washington University, 660 South Euclid Avenue, Box 8100, St. Louis, MO, 63110, USA
- Siteman Cancer Center Biostatistics Shared Resource, Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Chongliang Luo
- Division of Public Health Sciences, Department of Surgery, School of Medicine, Washington University, 660 South Euclid Avenue, Box 8100, St. Louis, MO, 63110, USA
- Siteman Cancer Center Biostatistics Shared Resource, Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Jingqin Luo
- Division of Public Health Sciences, Department of Surgery, School of Medicine, Washington University, 660 South Euclid Avenue, Box 8100, St. Louis, MO, 63110, USA
- Siteman Cancer Center Biostatistics Shared Resource, Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Adetunji T Toriola
- Division of Public Health Sciences, Department of Surgery, School of Medicine, Washington University, 660 South Euclid Avenue, Box 8100, St. Louis, MO, 63110, USA.
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, USA.
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His M, Lajous M, Gómez-Flores-Ramos L, Monge A, Dossus L, Viallon V, Gicquiau A, Biessy C, Gunter MJ, Rinaldi S. Biomarkers of mammographic density in premenopausal women. Breast Cancer Res 2021; 23:75. [PMID: 34301304 PMCID: PMC8305592 DOI: 10.1186/s13058-021-01454-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND While mammographic density is one of the strongest risk factors for breast cancer, little is known about its determinants, especially in young women. We applied targeted metabolomics to identify circulating metabolites specifically associated with mammographic density in premenopausal women. Then, we aimed to identify potential correlates of these biomarkers to guide future research on potential modifiable determinants of mammographic density. METHODS A total of 132 metabolites (acylcarnitines, amino acids, biogenic amines, glycerophospholipids, sphingolipids, hexose) were measured by tandem liquid chromatography/mass spectrometry in plasma samples from 573 premenopausal participants in the Mexican Teachers' Cohort. Associations between metabolites and percent mammographic density were assessed using linear regression models, adjusting for breast cancer risk factors and accounting for multiple tests. Mean concentrations of metabolites associated with percent mammographic density were estimated across levels of several lifestyle and metabolic factors. RESULTS Sphingomyelin (SM) C16:1 and phosphatidylcholine (PC) ae C30:2 were inversely associated with percent mammographic density after correction for multiple tests. Linear trends with percent mammographic density were observed for SM C16:1 only in women with body mass index (BMI) below the median (27.4) and for PC ae C30:2 in women with a BMI over the median. SM C16:1 and PC ae C30:2 concentrations were positively associated with cholesterol (total and HDL) and inversely associated with number of metabolic syndrome components. CONCLUSIONS We identified new biomarkers associated with mammographic density in young women. The association of these biomarkers with mammographic density and metabolic parameters may provide new perspectives to support future preventive actions for breast cancer.
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Affiliation(s)
- Mathilde His
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Martin Lajous
- Center for Research on Population Health, National Institute of Public Health, 62100, Cuernavaca, México.
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
| | - Liliana Gómez-Flores-Ramos
- Center for Research on Population Health, National Institute of Public Health, 62100, Cuernavaca, México
- Cátedras-CONACYT, Mexico City, Mexico
| | - Adriana Monge
- Center for Research on Population Health, National Institute of Public Health, 62100, Cuernavaca, México
| | - Laure Dossus
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Vivian Viallon
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Audrey Gicquiau
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Carine Biessy
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Marc J Gunter
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
| | - Sabina Rinaldi
- International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, CEDEX 08, 69372, Lyon, France
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Leng W, Pu D, Jiang J, Lei X, Wu Q, Chen B. Effect of Metformin on Breast Density in Overweight/Obese Premenopausal Women. Diabetes Metab Syndr Obes 2021; 14:4423-4432. [PMID: 34764661 PMCID: PMC8572728 DOI: 10.2147/dmso.s330625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/23/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND This study investigated the effects of metformin on breast density in overweight/obese premenopausal women. METHODS Overweight/obese premenopausal women (n=120) were randomly assigned to the metformin or placebo group, and all women received lifestyle interventions. The outcomes included weight, BMI, FPG, FIN, glucose, HOMA-IR, LDL-C, HDL-C, TG, TC, SBP, DBP, FSH, E, AD, and the BIRADS grade, and the incidence of breast cancer was assessed by pathological biopsy and BIRADS grade greater than 4. RESULTS In total, 120 overweight/obese women completed the 1-year trial. Seven patients had a BIRADS grade greater than 4, including 5 patients who were biopsy positive, in the control group, and 2 patients had a BIRADS grade greater than 4, including 1 patient who was biopsy positive, in the metformin group. Compared with those in the control group, the body weight, BMI, FIN, FPG, HOMA-IR, TC, BIRADS grade and positive pathological biopsy rate in the metformin group were significantly decreased (P<0.05), while AD was significantly increased (P<0.05). The correlation analysis indicated that the BIRADS grade was significantly correlated with weight, BMI, FPG, FIN, HOMA-IR, SBP, AD and the positive pathological biopsy rate, and the positive pathological biopsy rate was significantly correlated with weight, BMI, HOMA-IR, SBP, AD and BIRADS grade. The logistic regression analysis revealed that the BIRADS grade was significantly correlated with the positive pathological biopsy rate and AD and that the positive pathological biopsy rate was significantly correlated with the BIRADS grade. CONCLUSION As adjunctive therapy, the combination of lifestyle changes and metformin was found to be a safe strategy for improving related metabolic markers and increasing adiponectin. The BIRADS grade was significantly correlated with the positive pathological biopsy rate and AD, and the positive pathological biopsy rate was significantly correlated with the BIRADS grade.
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Affiliation(s)
- Weiling Leng
- Endocrinology Department, The First Affiliated Hospital of the Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Danlan Pu
- Endocrinology and Nephrology Department, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, People’s Republic of China
| | - Juan Jiang
- Endocrinology and Nephrology Department, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing, People’s Republic of China
| | - Xiaotian Lei
- Endocrinology Department, The First Affiliated Hospital of the Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Qinan Wu
- Endocrinology Department, Chongqing Medical University Affiliated Dazu Hospital, Dazu District People’s Hospital, Chongqing, People’s Republic of China
- Correspondence: Qinan Wu; Bing Chen Email ;
| | - Bing Chen
- Endocrinology Department, The First Affiliated Hospital of the Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
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Abstract
BACKGROUND Accumulating data have found that adiponectin is involved in development of breast cancer (BC). However, these results were inconsistent. METHOD A systematic search in PubMed, Embase, ISI Web of Science, and Chinese National Knowledge Infrastructure databases were conducted up to October 1, 2017. The standardized mean difference (SMD) with 95% confidence interval was applied to pool the effect size. RESULTS Finally, 31 eligible studies were included in this meta-analysis. The overall results indicated that serum adiponectin levels in BC cases were significantly lower than the controls (SMD = -0.33, P < 0.0001). As for the subgroup analysis of menstrual status, serum adiponectin levels were significantly lower in pre- and postmenopausal BC cases. Moreover, the subgroup analysis by ethnicity in pre- and postmenopausal group indicated an inverse association between adiponectin levels and BC risk in Asian population, but not in Caucasian population. CONCLUSION The present meta-analysis suggests that low serum adiponectin concentration may be associated with an increased BC risk in premenopausal and postmenopausal women, especially among Asians. Adiponectin may serve as a biomarker of BC risk and help to identify subjects at high risk for BC development.
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Affiliation(s)
- Li Gu
- Department of Obstetrics, West China Women's and Children's Hospital
- Key Laboratory of Birth and Related Diseases of Women and Children, Sichuan University
| | - Chang Cao
- Department of Cosmetic Plastic and Burns surgery, West China Hospital, Sichuan University, Chengdu
| | - Jing Fu
- International Education School, Southwest Medical University, Luzhou
| | - Qian Li
- Department of Operations Management, West China Hospital, Sichuan University
| | - De-Hua Li
- Key Laboratory of Birth and Related Diseases of Women and Children, Sichuan University
- Department of West China Second University Hospital Quality improvement, West China Women's and Children's Hospital, Chengdu
| | - Ming-Yao Chen
- Dazhou vocational and technical college, Dazhou, PR China
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