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Lee J, Campbell EK, Culakova E, Blanchard LM, Wixom N, Peppone LJ, Campbell TM. Changes in the consumption of isoflavones, omega-6, and omega-3 fatty acids in women with metastatic breast cancer adopting a whole-food, plant-based diet: post-hoc analysis of nutrient intake data from an 8-week randomized controlled trial. Front Nutr 2024; 11:1338392. [PMID: 38577156 PMCID: PMC10991800 DOI: 10.3389/fnut.2024.1338392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/11/2024] [Indexed: 04/06/2024] Open
Abstract
Background Diets rich in minimally processed plant-based foods are recommended to breast cancer patients, and some may have an interest in whole-food, plant-based (WFPB) diets that avoid animal-based foods, added fats, and refined sugars. Within WFPB diets, the intakes of isoflavones, omega-6 polyunsaturated fatty acids (n-6 PUFAs), and omega-3 polyunsaturated FAs (n-3 PUFAs), which have been discussed in reference to breast cancer outcomes, have not been well characterized. Methods Women with stage IV breast cancer on stable therapy were randomized 2:1 into (1) a WFPB intervention (N = 21) or (2) usual care (N = 11) for 8 weeks. Three meals per day were provided. Outcomes presented here include dietary intake of isoflavones, n-3 and n-6- PUFAs, which were assessed using three-day food records at baseline and 8 weeks. Baseline and 8-week mean intake within groups were compared using the Wilcoxon signed-rank test and between control and intervention groups by a two-sample t-test. Results The WFPB intervention participants increased their daily consumption of total isoflavones from a mean of 0.8 mg/day to 14.5 mg/day (p < 0.0001) and decreased the n-6:n-3 ratio of their diet from a mean of 9.3 to 3.7 (p < 0.0001). Within the WFPB group, linoleic acid (n-6 PUFA) consumption decreased by a mean of 3.8 g (p = 0.0095), from 12.8 g/day to 9.0 g/day; total n-3 PUFA consumption increased by a mean of 1.1 g (p = 0.0005), from 1.6 g/day to 2.7 g/day. Conclusion Transitioning to a WFPB diet resulted in significantly increased isoflavone intake and decreased n-6:n-3 ratio in women with breast cancer.
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Affiliation(s)
- Jean Lee
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY, United States
| | - Erin K. Campbell
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY, United States
| | - Eva Culakova
- Department of Surgery, Cancer Control, University of Rochester Medical Center, Rochester, NY, United States
| | - Lisa M. Blanchard
- Department of Family Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Nellie Wixom
- Clinical Research Center, University of Rochester Medical Center, Rochester, NY, United States
| | - Luke J. Peppone
- Department of Surgery, Cancer Control, University of Rochester Medical Center, Rochester, NY, United States
| | - Thomas M. Campbell
- Department of Family Medicine, University of Rochester Medical Center, Rochester, NY, United States
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Augimeri G, Bonofiglio D. Promising Effects of N-Docosahexaenoyl Ethanolamine in Breast Cancer: Molecular and Cellular Insights. Molecules 2023; 28:molecules28093694. [PMID: 37175104 PMCID: PMC10180201 DOI: 10.3390/molecules28093694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Unhealthy dietary habits have been identified as a risk factor for the development and progression of cancer. Therefore, adopting a healthy eating pattern is currently recommended to prevent the onset of different types of cancers, including breast carcinoma. In particular, the Mediterranean diet, based on high consumption of omega-3 polyunsaturated fatty acids (N-3 PUFAs), such as those found in cold-water fish and other seafood, nuts, and seeds, is recommended to reduce the incidence of several chronic-degenerative diseases. Indeed, the consumption of N-3 PUFAs, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), reduced the risk of different types of cancer, including breast cancer. Moreover, they can counteract breast cancer progression and reduce the side effects of chemotherapy in breast cancer survival. Studies have demonstrated that DHA, exhibiting greater antitumor activity than EPA in breast cancer, can be attributed to its direct impact on breast cancer cells and also due to its conversion into various metabolites. N-docosahexaenoyl ethanolamine, DHEA, is the most studied DHA derivative for its therapeutic potential in breast cancer. In this review, we emphasize the significance of dietary habits and the consumption of N-3 polyunsaturated fatty acids, particularly DHA, and we describe the current knowledge on the antitumoral action of DHA and its derivative DHEA in the treatment of breast cancer.
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Affiliation(s)
- Giuseppina Augimeri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
- Centro Sanitario, University of Calabria, 87036 Rende, CS, Italy
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Assessing the Highest Level of Evidence from Randomized Controlled Trials in Omega-3 Research. Nutrients 2023; 15:nu15041001. [PMID: 36839358 PMCID: PMC9959429 DOI: 10.3390/nu15041001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Over the years, there has been heightened interest in the health benefits of n-3 polyunsaturated fatty acids (PUFA) in reducing chronic diseases such as, cardiovascular disease (CVD), cancer, type 2 diabetes, and acute macular degeneration (AMD). Due to inconsistent findings in the evidence, a review to critically examine the plethora of evidence from randomized controlled trials (RCTs) in n-3 PUFA research was undertaken. The aim of this review is to study the highest level of evidence and to identify gaps in n-3 PUFA research. RCTs were originally designed for pharmaceutical research and later adopted for nutrition and food-related research. RCTs with active diseases assume that n-3 PUFA will have "drug" like effects, and this high expectation may have led to the inconsistent evidence in the literature. The inconsistency in the literature may be related to varying doses of n-3 PUFA, sources of n-3 PUFA (food vs. supplement; plant vs. marine), type of n-3 PUFA (mixture vs. purified), trial duration, population characteristics, sample size, and genetic variation. For future research, there is a need to distinguish between primary and secondary prevention, and to focus RCTs on primary prevention of chronic diseases by n-3 PUFA which is lacking in the literature.
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Shafie F, Tajadod S, Aslany Z, Allahyari P, Vahdat M, Shekari S, Mohseni GK, Gholamalizadeh M, Mohammadi S, Bahar B, Shafaei H, Doaei S. Breast cancer and dietary fat quality indices in Iranian women: A case-control study. Front Oncol 2023; 12:993397. [PMID: 36741722 PMCID: PMC9895810 DOI: 10.3389/fonc.2022.993397] [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] [Received: 07/13/2022] [Accepted: 12/30/2022] [Indexed: 01/21/2023] Open
Abstract
Background The association between breast cancer (BC) and different indices of dietary fats has not been well-studied. Thus, this study aimed to investigate the association between BC and dietary fat quality (DFQ) indices in Iranian women. Methods This case-control study was conducted on 120 women with breast cancer and 240 healthy women in Tehran, Iran. Food Frequency Questionnaire and nutritionist IV software were used to assess the intake of dietary fats and to calculate the DFQ indices. Results The patients with BC had a higher total fat (TF) (P < 0.01) and a lower ratio of polyunsaturated fatty acids (PUFAs) omega-3 to PUFAs omega-6 (ω-3/ω-6) compared with the controls (P < 0.001). TF had a significant association with BC risk (OR: 1.16; 95% CI: 1.01-1.33, P < 0.001). No significant association was found between BC and PUFA/saturated fatty acid ratio or the ω-3/ω-6 ratio. Conclusion The patients with BC had a lower ω-3/ω-6 ratio and a higher total dietary fat intake than the healthy women. Total dietary fat intake was also directly associated with the risk of BC. Thus, low-fat diets may have beneficial effects for BC prevention. Further longitudinal studies are warranted.
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Affiliation(s)
- Fatemeh Shafie
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Tajadod
- Department of Nutrition, School Of Public Health, International Campus, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Aslany
- The Ohio State University Interdisciplinary ph.D. program in Nutrition (OSUN), Columbus, United States,The Ohio State University Comprehensive Cancer Center, Columbus, United States
| | - Pooneh Allahyari
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Mahsa Vahdat
- Aboozar Children’s Medical Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Soheila Shekari
- Department of Nutrition, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Golsa Khalatbari Mohseni
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Gholamalizadeh
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeideh Mohammadi
- Department of Nutrition, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Bojlul Bahar
- Nutrition Sciences and Applied Food Safety Studies, Research Centre for Global Development, School of Sport and Health Sciences, University of Central Lancashire, Preston, United Kingdom
| | - Hanieh Shafaei
- Nursing and Midwifery School, Guilan University of Medical Sciences, Rasht, Iran
| | - Saeid Doaei
- Department of Community Nutrition, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran,*Correspondence: Saeid Doaei,
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Zhong S, Huang B, Wei T, Deng Z, Li J, Wen Q. Comprehensive Evaluation of Quality Characteristics of Four Oil-Tea Camellia Species with Red Flowers and Large Fruit. Foods 2023; 12:foods12020374. [PMID: 36673466 PMCID: PMC9857641 DOI: 10.3390/foods12020374] [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] [Received: 12/08/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Red-flowered oil-tea camellia (ROC) is an important woody oil species growing in the south, and its oil has high nutritional value. There are four main species of ROC in China, namely, Camellia chekiangoleosa (CCH), Camellia polyodonta (CPO), Camellia semiserrata (CSE) and Camellia reticulata (CRE). Reports on the comprehensive comparative analysis of ROC are limited. This study investigated the fruit characteristics and nutritional components of four ROC fruits, and the results showed that ROC had high oil content with levels of 39.13%-58.84%, especially the CCH fruit, which reached 53.6-58.84%. The contents of lipid concomitants of ROC oil were also substantial, including β-amyrin (0.87 mg/g-1.41 mg/g), squalene (0.43 mg/g-0.69 mg/g), β-sitosterin (0.47 mg/g-0.63 mg/g) and α-tocopherol (177.52 μg/g-352.27 μg/g). Moreover, the transverse diameter(TD)/longitudinal diameter (LD) of fruits showed a significant positive correlation with the oil content, and ROC fruits with thinner peels seemed to have better oil quality, which is similar to the result of the oil quality evaluation obtained by the gray correlation coefficient evaluation method. Four ROC oils were evaluated using the gray correlation coefficient method based on 11 indicators related to the nutritional value of ROC. CCH oil had the highest score of 0.8365, and YS-2 (a clone of CCH) was further evaluated as the best CCH oil. Finally, the results of heatmap analysis showed that triglycerides could be used as a characteristic substance to distinguish CCH oil from the other three ROC oils. The PLSDA (Partial least squares regression analysis) model and VIP (Variable important in projection) values further showed that P/S/O, P/O/O, P/L/L, P/L/Ln, S/S/O, S/O/O and P/S/S (these all represent abbreviations for fatty acids) could be used as characteristic differential triglycerides among the four ROC oils. This study provides a convenient way for planters to assess the nutritional quality of seed oil depending on fruit morphology and a potential way to distinguish between various ROC oils.
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Affiliation(s)
- Shengyue Zhong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- Jiangxi Provincial Key Laboratory of Camellia Germplasm Conservation and Utilization, Jiangxi Academy of Forestry, Nanchang 330047, China
| | - Bin Huang
- Jiangxi Provincial Key Laboratory of Camellia Germplasm Conservation and Utilization, Jiangxi Academy of Forestry, Nanchang 330047, China
| | - Teng Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zeyuan Deng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jing Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- Correspondence: (J.L.); (Q.W.)
| | - Qiang Wen
- Jiangxi Provincial Key Laboratory of Camellia Germplasm Conservation and Utilization, Jiangxi Academy of Forestry, Nanchang 330047, China
- Correspondence: (J.L.); (Q.W.)
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Zuo Z, Jia J, Li H, Shi R, Wang D, Zeng KW, Nie H, Wang XG, Liu W, Li M, Feng Y, Wang XB. Adjuvant effects of Chinese medicinal tonics on gastric, liver, and colorectal cancers—OMICs-based contributions to understanding their mechanism of action. Front Pharmacol 2022; 13:986765. [DOI: 10.3389/fphar.2022.986765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022] Open
Abstract
Gastric, liver, and colorectal cancers belong to gastrointestinal (GI) cancers, one of the most threatening diseases in the world. The tonics class in Chinese medicines plays a critical role in antigastrointestinal cancer as adjuvants. However, it is a challenge to study the effects and underlying mechanisms of tonics due to their multiple components and multiple targets; OMICs were introduced to facilitate the investigation of the complex mixture of tonics. In this review, the online databases PubMed, ProQuest, Web of Knowledge, China National Knowledge Infrastructure (CNKI), Chongqing VIP, and Wanfang were retrieved from 1 January 2011 to 31 May 2022, in an aim to summarize and discuss the research progress of the effects and, especially, the underlying mechanisms of tonics for antigastrointestinal cancers via OMICs. The results showed that through the combination of OMICs and other technologies, tonics have been used for gastrointestinal cancer by targeting cancer hallmarks, enhancing body resistance to carcinogenesis, enhancing therapeutic effects, and/or decreasing side effects. In conclusion, tonics may play a promising role in gastric, liver, and colorectal cancers as adjuvants and can be well investigated via the combination of OMICs and other technologies, which deserves further study.
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Association of dietary intake of n-3 polyunsaturated fatty acids with breast cancer risk in pre- and postmenopausal Chinese women. Menopause 2022; 29:932-943. [PMID: 35881925 DOI: 10.1097/gme.0000000000001990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study aimed to evaluate the associations between breast cancer risk and intake of n-3 polyunsaturated fatty acids (PUFAs) and/or n-3 PUFA subclasses in Chinese women, and determine whether these associations varied with menopausal status or clinical characteristics. METHODS A hospital-based case-control study including 1,589 cases and 1,621 age-frequency-matched controls was conducted. Dietary data were assessed by a validated food frequency questionnaire. Odds ratios (ORs) and 95% confidence intervals were obtained using multiple unconditional logistic regression models after controlling for potential confounders. RESULTS Higher intake of marine n-3 PUFAs and total n-3 PUFAs was associated with lower risk of breast cancer, with adjusted OR quartile 4 v.1 (95% confidence intervals) of 0.68 (0.55-0.84) and 0.56 (0.42-0.75), respectively. Dietary a-linolenic acid, eicosapentaenoic acid, docosapentaenoic acid, docosahexaenoic acid were also inversely associated with breast cancer risk, with adjusted ORs (95% confidence intervals) of 0.51 (0.38-0.70), 0.68 (0.55-0.84), 0.68 (0.55-0.85), and 0.76 (0.61-0.94), respectively. In stratified analyses, these inverse associations between risk and dietary n-3 PUFAs were more evident among premenopausal women and women with ER+, PR+ and ER+PR+ tumors. A decreased risk of breast cancer was significantly associated with increasing n-3 PUFA intake in obese/overweight women, but not in women of normal weight. There was a significant interaction between linoleic acid and marine n-3 PUFAs. CONCLUSIONS High intake of n-3 PUFAs and n-3 PUFA subtypes was associated with a lower risk of breast cancer, especially among premenopausal women and women with ER+ and/or PR+ subtype breast cancer.
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Health Benefits, Food Applications, and Sustainability of MI-Croalgae-Derived N-3 Pufa. Foods 2022; 11:foods11131883. [PMID: 35804698 PMCID: PMC9265382 DOI: 10.3390/foods11131883] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/03/2022] [Accepted: 06/15/2022] [Indexed: 01/27/2023] Open
Abstract
Today’s consumers are increasingly aware of the beneficial effects of n-3 PUFA in preventing, delaying, and intervening various diseases, such as coronary artery disease, hypertension, diabetes, inflammatory and autoimmune disorders, neurodegenerative diseases, depression, and many other ailments. The role of n-3 PUFA on aging and cognitive function is also one of the hot topics in basic research, product development, and clinical applications. For decades, n-3 PUFA, especially EPA and DHA, have been supplied by fish oil and seafood. With the continuous increase of global population, awareness about the health benefits of n-3 PUFA, and socioeconomic improvement worldwide, the supply chain is facing increasing challenges of insufficient production. In this regard, microalgae have been well considered as promising sources of n-3 PUFA oil to mitigate the supply shortages. The use of microalgae to produce n-3 PUFA-rich oils has been explored for over two decades and some species have already been used commercially to produce n-3 PUFA, in particular EPA- and/or DHA-rich oils. In addition to n-3 PUFA, microalgae biomass contains many other high value biomolecules, which can be used in food, dietary supplement, pharmaceutical ingredient, and feedstock. The present review covers the health benefits of n-3 PUFA, EPA, and DHA, with particular attention given to the various approaches attempted in the nutritional interventions using EPA and DHA alone or combined with other nutrients and bioactive compounds towards improved health conditions in people with mild cognitive impairment and Alzheimer’s disease. It also covers the applications of microalgae n-3 PUFA in food and dietary supplement sectors and the economic and environmental sustainability of using microalgae as a platform for n-3 PUFA-rich oil production.
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Heravi G, Yazdanpanah O, Podgorski I, Matherly LH, Liu W. Lipid metabolism reprogramming in renal cell carcinoma. Cancer Metastasis Rev 2022; 41:17-31. [PMID: 34741716 PMCID: PMC10045462 DOI: 10.1007/s10555-021-09996-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/21/2021] [Indexed: 12/15/2022]
Abstract
Metabolic reprogramming is recognized as a hallmark of cancer. Lipids are the essential biomolecules required for membrane biosynthesis, energy storage, and cell signaling. Altered lipid metabolism allows tumor cells to survive in the nutrient-deprived environment. However, lipid metabolism remodeling in renal cell carcinoma (RCC) has not received the same attention as in other cancers. RCC, the most common type of kidney cancer, is associated with almost 15,000 death in the USA annually. Being refractory to conventional chemotherapy agents and limited available targeted therapy options has made the treatment of metastatic RCC very challenging. In this article, we review recent findings that support the importance of synthesis and metabolism of cholesterol, free fatty acids (FFAs), and polyunsaturated fatty acids (PUFAs) in the carcinogenesis and biology of RCC. Delineating the detailed mechanisms underlying lipid reprogramming can help to better understand the pathophysiology of RCC and to design novel therapeutic strategies targeting this malignancy.
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Affiliation(s)
- Gioia Heravi
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
| | - Omid Yazdanpanah
- Department of Internal Medicine, Wayne State University School of Medicine, Detroit, MI, USA
| | - Izabela Podgorski
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA.,Karmanos Cancer Institute, Detroit, MI, USA
| | - Larry H Matherly
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA.,Karmanos Cancer Institute, Detroit, MI, USA
| | - Wanqing Liu
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA. .,Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA. .,Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA. .,Karmanos Cancer Institute, Detroit, MI, USA.
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Chi G, Xu Y, Cao X, Li Z, Cao M, Chisti Y, He N. Production of polyunsaturated fatty acids by Schizochytrium (Aurantiochytrium) spp. Biotechnol Adv 2021; 55:107897. [PMID: 34974158 DOI: 10.1016/j.biotechadv.2021.107897] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/05/2021] [Accepted: 12/20/2021] [Indexed: 12/28/2022]
Abstract
Diverse health benefits are associated with dietary consumption of omega-3 long-chain polyunsaturated fatty acids (ω-3 LC-PUFA), particularly docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Traditionally, these fatty acids have been obtained from fish oil, but limited supply, variably quality, and an inability to sustainably increase production for a rapidly growing market, are driving the quest for alternative sources. DHA derived from certain marine protists (heterotrophic thraustochytrids) already has an established history of commercial production for high-value dietary use, but is too expensive for use in aquaculture feeds, a much larger potential market for ω-3 LC-PUFA. Sustainable expansion of aquaculture is prevented by its current dependence on wild-caught fish oil as the source of ω-3 LC-PUFA nutrients required in the diet of aquacultured animals. Although several thraustochytrids have been shown to produce DHA and EPA, there is a particular interest in Schizochytrium spp. (now Aurantiochytrium spp.), as some of the better producers. The need for larger scale production has resulted in development of many strategies for improving productivity and production economics of ω-3 PUFA in Schizochytrium spp. Developments in fermentation technology and metabolic engineering for enhancing LC-PUFA production in Schizochytrium spp. are reviewed.
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Affiliation(s)
- Guoxiang Chi
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen 361005, China
| | - Yiyuan Xu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen 361005, China
| | - Xingyu Cao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen 361005, China
| | - Zhipeng Li
- College of Food and Biological Engineering, Jimei University, Xiamen 361000, China
| | - Mingfeng Cao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen 361005, China.
| | - Yusuf Chisti
- School of Engineering, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Ning He
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen 361005, China.
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Mozafarinia M, Sasanfar B, Toorang F, Salehi-Abargouei A, Zendehdel K. Association between dietary fat and fat subtypes with the risk of breast cancer in an Iranian population: a case-control study. Lipids Health Dis 2021; 20:138. [PMID: 34657612 PMCID: PMC8520643 DOI: 10.1186/s12944-021-01557-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/14/2021] [Indexed: 12/24/2022] Open
Abstract
AIM To examine the relationship between dietary fat intake and breast cancer (BC) development. METHOD This case-control study included 473 women with breast cancer (pathologically confirmed) and 501 healthy subjects matched by age and residency. Dietary intakes of different types and sources of fatty acids were assessed using a validated food frequency questionnaire. The association between dietary fats and odds of BC was assessed using a logistic regression model in crude and multivariable-adjusted models. P values below 0.05 were regarded as statistically significant. RESULTS Participants' age and body mass index were 44.0 ± 10.8 years and 28.4 ± 5.6 kg/m2, respectively. Individuals with the highest quartile of total fat intake and polyunsaturated fatty acid (PUFA) intake were 1.50 times more at risk to develop BC than others. A positive significant association was observed between animal fat (Q4 vs. Q1, OR = 1.89, 95 % CI = 0.93-3.81), saturated fatty acid (SFA) (Q4 vs. Q1, OR = 1.70, 95 % CI = 0.88-3.30), monounsaturated fatty acid (MUFA) (Q4 vs. Q1 OR = 1.85, 95 % CI = 0.95-3.61) and PUFA intake (Q4 vs. Q1, OR = 2.12, 95 % CI = 1.05-4.27) with BC risk in postmenopausal women. However, there was no association in premenopausal women. CONCLUSIONS Total dietary fat and its subtypes might increase the risk of BC, especially in postmenopausal women. This observational study confirms the role of dietary fat in breast cancer development. Intervention studies involving different estrogen receptor subgroups are needed.
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Affiliation(s)
- Maedeh Mozafarinia
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahareh Sasanfar
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Toorang
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Amin Salehi-Abargouei
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Kazem Zendehdel
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran.
- Cancer Biology Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, I.R., Tehran, Iran.
- Breast Diseases Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, I.R., Tehran, Iran.
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, P.O.Box 13145158, I.R., Tehran, Iran.
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Liu C, Ralston NVC. Seafood and health: What you need to know? ADVANCES IN FOOD AND NUTRITION RESEARCH 2021; 97:275-318. [PMID: 34311902 DOI: 10.1016/bs.afnr.2021.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Seafood, including fish and shellfish, provides an ideal package of nutrients and is an important part of a healthy diet. Strong evidence has shown that eating fish and other seafoods improve brain, eye, and heart health. The new 2020-2025 Dietary Guidelines for Americans (DGA) recommend that Americans of all ages should eat more seafood-at least twice a week-particularly pregnant women and young children. However, less than one in five Americans heed that advice. About one-third of Americans eat seafood once a week, while nearly half eat fish only occasionally or not at all. This calls for a drastic shift in the American diet to vary protein sources and include more seafood products in order to receive the most health benefits. This chapter covers (1) seafood nutrition and health benefits, (2) seafood's protective effects against mercury toxicity, (3) selenium health benefit values (HBVs), and (4) challenges and opportunities for seafood production, demand and sustainability. This chapter aims to convey recent advances in science-based information to increase public awareness of seafood safety, nutrition and health benefits of seafood as part of a healthy diet, and to advocate healthy eating with smart food choices by promoting two servings of seafood per week. This will support the healthy eating patterns and promotes a minimum two to three servings of seafood recommended by the current DGA.
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Affiliation(s)
- Chengchu Liu
- University of Maryland-UME Sea Grant Extension Program, Center for Food Science and Technology, Princess Anne, MD, United States.
| | - Nicholas V C Ralston
- Earth System Science and Policy, University of North Dakota, Grand Forks, ND, United States
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Newell M, Ghosh S, Goruk S, Pakseresht M, Vena JE, Dummer TJB, Field CJ. A Prospective Analysis of Plasma Phospholipid Fatty Acids and Breast Cancer Risk in 2 Provinces in Canada. Curr Dev Nutr 2021; 5:nzab022. [PMID: 33889794 PMCID: PMC8049855 DOI: 10.1093/cdn/nzab022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/23/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Studies suggest that fatty acid status influences breast cancer etiology, yet the roles of individual fatty acids in breast cancer risk are unclear, specifically when central adiposity and menopausal status are considered. OBJECTIVES This study examined the associations of fatty acid status with breast cancer risk including location, menopausal status, and waist-to-hip ratio as key variables. METHODS Prediagnostic plasma phospholipid fatty acids were measured in women with breast cancer (n = 393) and age-matched controls (n = 786) from a nested case-control prospective study within Alberta's Tomorrow Project (ATP) and British Columbia Generations Project (BCGP) cohorts. Binary logistic regression models were used to evaluate associations of fatty acids and breast cancer risk with subgroup analysis for menopausal status and waist-to-hip ratio. RESULTS Women from BCGP had a higher n-3 (ɷ-3) fatty acid status compared with the ATP (6.4% ± 0.08% vs. 5.3% ± 0.06%; P < 0.001), so subsequent analysis was blocked by cohort. Overall, fatty acids had inconsistent associations with risk. In the ATP among premenopausal women, total long-chain n-3 fatty acids (ORQ4vsQ1 = 1.78; 95% CI: 0.58, 5.43; P-trend = 0.007, P-interaction = 0.07) were positively associated with breast cancer risk, whereas in BCGP, DHA (ORQ4vsQ1 = 0.66; 95% CI: 0.28, 1.53; P-trend = 0.03, P-interaction = 0.05) and total long-chain n-3 fatty acids (ORQ4vsQ1 = 0.66; 95% CI: 0.28, 1.54; P-trend = 0.03) were associated with decreased cancer risk when the waist-to-hip ratio was <0.85. CONCLUSIONS Our findings suggest that regional variations in fatty acid status influence breast cancer risk, resulting in positive associations of total long-chain n-3 fatty acids in premenopausal ATP women and negative associations of these fatty acids in BCGP women with a waist-to-hip ratio below guidelines. This study highlights the complexity and difficulty in using fatty acid status to predict breast cancer risk in diverse populations without the consideration of other risk factors.
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Affiliation(s)
- Marnie Newell
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
| | - Sunita Ghosh
- Department of Medical Oncology, University of Alberta, Edmonton, Canada
| | - Susan Goruk
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
| | - Mohammedreza Pakseresht
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
| | - Jennifer E Vena
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
- Alberta's Tomorrow Project, CancerCare Alberta, Alberta Health Services, Calgary, Canada
| | - Trevor J B Dummer
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
- Cancer Control Research, BC Cancer, Vancouver, Canada
| | - Catherine J Field
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
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Pizato N, Hoffmann MS, Irala CH, Muniz-Junqueira MI, Silva Paixao EMD, Ito MK. Serum fatty acid synthase levels and n-3 fatty acid intake in patients with breast cancer. Clin Nutr ESPEN 2021; 42:142-147. [PMID: 33745568 DOI: 10.1016/j.clnesp.2020.12.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/25/2020] [Accepted: 12/15/2020] [Indexed: 11/18/2022]
Abstract
PURPOSE Fatty acid synthase (FASN) is a key enzyme in fatty acid biosynthesis that is usually over-expressed in patients with breast cancer, but its relationship with the patient's dietary habit is not clear. A higher intake of n-3 polyunsaturated fatty acids is related to reduced breast carcinogenesis in vitro and in vivo. The aim of this study was to clinically investigate the association between serum FASN levels and fatty acid intake in women newly diagnosed with breast cancer. METHODS In a case-control cross-sectional study, with 18 breast cancer patients and 29 controls, we evaluated nutritional status, dietary intake, and serum FASN levels. Statistical analyses were carried out with parametric and non-parametric tests, according to the sample's normality distribution. RESULTS The mean age of breast cancer group (n = 18) and control group (n = 29) was 46.8 ± 9.7 y and 44.4. ± 8.6 y, respectively. Mean serum concentration of FASN in breast cancer group was significantly higher (132.51 ± 95.05 ng/mL) than in control group (36.88 ± 20.87 ng/mL) (p < 0.0001). Among breast cancer group, serum FASN levels of premenopausal women were significantly higher than those of postmenopausal women (p = 0.026). There was no significant difference between the early and late disease stages in regard to serum FASN levels in breast cancer group. Mean nutrient intake was similar and n-3 docosahexaenoic acid intake was low in both groups. We observed no association regarding fatty acid intake and serum FASN levels. CONCLUSION These data suggest that dietary n-3 fatty acid has no association with serum FASN levels among newly diagnosed breast cancer patients.
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Affiliation(s)
- Nathalia Pizato
- Graduate Program in Human Nutrition, Department of Nutrition, University of Brasilia, UnB, Brasilia 70910-900, Brazil.
| | - Meg Schwarcz Hoffmann
- University Hospital of Brasilia, University of Brasília, UnB, Brasilia 70910-900, Brazil.
| | - Clarissa Hoffman Irala
- University Hospital of Brasilia, University of Brasília, UnB, Brasilia 70910-900, Brazil.
| | | | | | - Marina Kiyomi Ito
- Graduate Program in Human Nutrition, Department of Nutrition, University of Brasilia, UnB, Brasilia 70910-900, Brazil.
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Lust CAC, Bi X, Henry CJ, Ma DWL. Development of Fatty Acid Reference Ranges and Relationship with Lipid Biomarkers in Middle-Aged Healthy Singaporean Men and Women. Nutrients 2021; 13:nu13020435. [PMID: 33572735 PMCID: PMC7911367 DOI: 10.3390/nu13020435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/14/2021] [Accepted: 01/26/2021] [Indexed: 12/17/2022] Open
Abstract
Dietary fatty acids (FA) are essential for overall human health, yet individual FA reference ranges have yet to be established. Developing individual FA reference ranges can provide context to reported concentrations and whether an individual displays deficient, or excess amounts of FA. Reference ranges of sixty-seven individual FA (μmol/L) were profiled and analyzed using gas chromatography with a flame ionization detector from serum samples collected from 476 middle-aged Singaporean males (BMI:23.3 ± 2.9) and females (BMI:21.8 ± 3.6). Measures of triglycerides (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), and total cholesterol (TC) (mmol/L) were also collected. The mean FA concentration seen in this cohort (11,458 ± 2478 was similar to that of overweight North American cohorts assessed in past studies. Ten biologically relevant FA were compared between sexes, with females exhibiting significantly higher concentrations in four FA (p < 0.05). A multiple regression model revealed the ten FA contributed significantly to nearly all lipid biomarkers (p < 0.05). A majority of participants who had FA concentrations in the ≥95th percentile also exhibited TG, HDL, LDL, and TC levels in the “high” risk classification of developing cardiovascular disease. Future studies profiling individual FA reference ranges in many unique, global cohorts are necessary to develop cut-off values of individual FA concentrations highly related to disease-risk.
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Affiliation(s)
- Cody A. C. Lust
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Xinyan Bi
- Clinical Nutrition Research Centre (CNRC), Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 14 Medical Drive #07-02, MD 6 Building, Singapore 117599, Singapore; (X.B.); (C.J.H.)
| | - Christiani Jeyakumar Henry
- Clinical Nutrition Research Centre (CNRC), Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 14 Medical Drive #07-02, MD 6 Building, Singapore 117599, Singapore; (X.B.); (C.J.H.)
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
| | - David W. L. Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Correspondence:
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N-6 Polyunsaturated Fatty Acids and Risk of Cancer: Accumulating Evidence from Prospective Studies. Nutrients 2020; 12:nu12092523. [PMID: 32825393 PMCID: PMC7551408 DOI: 10.3390/nu12092523] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023] Open
Abstract
Previous studies on the association between polyunsaturated fatty acids (PUFAs) and cancer have focused on n-3 PUFAs. To investigate the association between intake or blood levels of n-6 PUFAs and cancer, we searched the PubMed and Embase databases up to March 2020 and conducted a meta-analysis. A total of 70 articles were identified. High blood levels of n-6 PUFAs were associated with an 8% lower risk of all cancers (relative risk (RR) = 0.92; 95% confidence interval (CI): 0.86-0.98) compared to low blood levels of n-6 PUFAs. In the subgroup analyses by cancer site, type of n-6 PUFAs, and sex, the inverse associations were strong for breast cancer (RR = 0.87; 95% CI: 0.77-0.98), linoleic acid (LA) (RR = 0.91; 95% CI: 0.82-1.00), and women (RR = 0.88; 95% CI: 0.79-0.97). In the dose-response analysis, a 2% and 3% decrease in the risk of cancer was observed with a 5% increase in blood levels of n-6 PUFAs and LA, respectively. Thus, there was no significant association between n-6 PUFA intake and the risk of cancer. The pooled RR of cancer for the highest versus lowest category of n-6 PUFA intake was 1.02 (95% CI: 0.99-1.05). Evidence from prospective studies indicated that intake of n-6 PUFAs was not significantly associated with risk of cancer, but blood levels of n-6 PUFAs were inversely associated with risk of cancer.
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Chen Y, Qiu X, Yang J. Comparing the In Vitro Antitumor, Antioxidant and Anti-Inflammatory Activities between Two New Very Long Chain Polyunsaturated Fatty Acids, Docosadienoic Acid (DDA) and Docosatrienoic Acid (DTA), and Docosahexaenoic Acid (DHA). Nutr Cancer 2020; 73:1697-1707. [PMID: 32781843 DOI: 10.1080/01635581.2020.1804949] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Very long chain polyunsaturated fatty acids (VLCPUFAs) are widely used as nutraceutical supplements for human health. Recently, a high level of two new VLCPUFAs, docosadienoic acid (DDA, 22:2n-6) and docosatrienoic acid (DTA, 22:3n-3), was produced in oilseed crop Brassica carinata using a biotechnology approach. This study investigated the functional properties of these two VLCPUFAs in human cells. Compared to docosahexaenoic acid (DHA), the golden standard in evaluating the health-promoting activities of VLCPUFAs, both DDA and DTA exhibited comparable or even better antitumor and antioxidant effects against human breast cancer SK-BR-3 and MDA-MB-231 cells. Especially, DTA elicited much stronger antioxidant and pro-apoptotic effects than DHA. Furthermore, DDA and DTA showed strong anti-inflammatory effects in human macrophages differentiated from monocyte THP-1 cells through lowering the protein expression levels of pro-inflammatory cytokines interleukin-1β (IL-1β), interleukin-6 (IL-6), interferon γ (IFN-γ), monocyte chemoattractant protein-1 (MCP-1) and tumor necrosis factor α (TNF-α). Future In Vivo and In Vivo studies are warranted to identify the mechanism of action (MOA) for the antitumor, antioxidant and anti-inflammatory functions of DDA and DTA and explore potential applications of these two VLCPUFAs as novel nutraceutical supplements in preventing inflammatory conditions, aging and even cancer.
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Affiliation(s)
- Yi Chen
- Department of Food and Bioproduct Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Xiao Qiu
- Department of Food and Bioproduct Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jian Yang
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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18
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Liu J, Li X, Hou J, Sun J, Guo N, Wang Z. Dietary Intake of N-3 and N-6 Polyunsaturated Fatty Acids and Risk of Cancer: Meta-Analysis of Data from 32 Studies. Nutr Cancer 2020; 73:901-913. [PMID: 32530319 DOI: 10.1080/01635581.2020.1779321] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Large epidemiological studies have yielded conflicting results regarding the relationship between polyunsaturated fatty acids (PUFAs) and cancers. Here, we performed a meta-analysis to examine the link between dietary intake of n-3 and n-6 PUFAs and cancer risk. MATERIALS AND METHODS We performed a search on PubMed, EMBASE, and the Cochrane Library. Studies that reported adjusted relative risk (RR) estimates with 95% confidence intervals (CI) for the associations of interest were included. RESULTS Thirty-two studies involving 1,445,732 participants were included. Colorectal, breast and prostate cancer had been analyzed in our study. Specifically, for colorectal cancer, total n-3 PUFAs, marine n-3 PUFAs, α-linolenic acids (ALA) and n-6 PUFAs were not associated with the risk of it (RR 1.04, 95%CI 0.85-1.28; RR 0.99, 95%CI 0.89-1.09; RR 1.05, 95%CI 0.93-1.19; RR 1.02, 95%CI 0.94-1.11, respectively). For breast cancer, only marine n-3 PUFAs, but not total n-3 PUFAs, ALA, and n-6 PUFAs, was associated with a lower risk of it (RR 0.70, 95%CI 0.55-0.91). For prostate cancer, ALA and n-6 PUFAs also have no association with the risk of it. CONCLUSIONS Most subtypes of PUFAs are probably not related to cancers. However, additional high-quality trials are warranted to corroborate the findings of this meta-analysis.
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Affiliation(s)
- Jian Liu
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianqing Li
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinfei Hou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nengqiang Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Dydjow-Bendek D, Zagoźdźon P. Total Dietary Fats, Fatty Acids, and Omega-3/Omega-6 Ratio as Risk Factors of Breast Cancer in the Polish Population - a Case-Control Study. In Vivo 2020; 34:423-431. [PMID: 31882509 PMCID: PMC6984116 DOI: 10.21873/invivo.11791] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/24/2019] [Accepted: 10/30/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND/AIM Breast cancer is the most common type of cancer among women around the world and the leading cause of cancer-related death among women. The knowledge about modifiable risk factors, such as diet, can be an acceptable, cheap and non-pharmacological prevention tool. The aim of this study was to investigate the association between dietary fat, dietary fatty acids, fish intake, and breast cancer in women. PATIENTS AND METHODS A case-control study was designed. A total of 201 consecutive, newly diagnosed, polish female cancer patients (mean age: 58 years) and 201 one-to-one age-matched controls were enrolled. A standardised questionnaire assessing various socio-demographic, clinical, lifestyle, and dietary characteristics was applied via face-to-face interviews. Detailed dietary intake information was assessed using a validated Food Frequency Questionnaire. Odds ratios (OR) and 95% confidence intervals (95%CI) were obtained using multiple unconditional logistic regression models controlling for non-dietary and dietary potential confounders. RESULTS Consumption of polyunsaturated fats (PUFA) over 10% of total energy intake was associated with a significantly lower risk of breast cancer compared to low intake of PUFA (OR=0.4, 95%CI=0.19-0.85). Low (<0.2) omega-3/ omega-6 ratio (OR=2.04, 95%CI=0.996-4.17), fish consumption less than once every six months (OR=3.37, 95%CI=1.57-7.23) and being overweight (OR=2.07, 95%CI=1.3-3.3) were associated with increased risk of breast cancer. Residents of rural areas had a significantly higher risk compared to women from urban areas (OR=1.8, 95%CI=1.06-3.03). CONCLUSION High intake of PUFA can decrease the risk of breast cancer, while the low omega-3/omega-6 ratio increases the risk. In addition, overweight state, eliminating fish from the diet and living in rural areas can also increase the risk of breast cancer.
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Affiliation(s)
- Dorota Dydjow-Bendek
- Department of Hygiene and Epidemiology, Medical University of Gdansk, Gdansk, Poland
| | - Pawel Zagoźdźon
- Department of Hygiene and Epidemiology, Medical University of Gdansk, Gdansk, Poland
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Docosahexaenoic Acid Inhibits PTP1B Phosphatase and the Viability of MCF-7 Breast Cancer Cells. Nutrients 2019; 11:nu11112554. [PMID: 31652764 PMCID: PMC6893741 DOI: 10.3390/nu11112554] [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: 09/27/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Docosahexaenoic acid (DHA) is an essential polyunsaturated fatty acid compound present in deep water fishes and dietary supplements, with a wide spectrum of potential health benefits, ranging from neurological to anti-inflammatory. METHODS Due to the fact that DHA is considered a breast cancer risk reducer, we examined the impact of DHA on MCF-7 breast cancer cells' viability and its inhibitory properties on protein tyrosine phosphatase 1B (PTP1B), a pro-oncogenic phosphatase. RESULTS We found that DHA is able to lower both the enzymatic activity of PTP1B phosphatase and the viability of MCF-7 breast cancer cells. We showed that unsaturated DHA possesses a significantly higher inhibitory activity toward PTP1B in comparison to similar fatty acids. We also performed a computational analysis of DHA binding to PTP1B and discovered that it is able to bind to an allosteric binding site. CONCLUSIONS Utilizing both a recombinant enzyme and cellular models, we demonstrated that DHA can be considered a potential pharmacological agent for the prevention of breast cancer.
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Nindrea RD, Aryandono T, Lazuardi L, Dwiprahasto I. Association of Dietary Intake Ratio of n-3/n-6 Polyunsaturated Fatty Acids with Breast Cancer Risk in Western and Asian Countries: A Meta-Analysis. Asian Pac J Cancer Prev 2019; 20:1321-1327. [PMID: 31127884 PMCID: PMC6857870 DOI: 10.31557/apjcp.2019.20.5.1321] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Objective: This systematic review and meta-analysis were performed to determine association of dietary intake ratio of n-3/n-6 polyunsaturated fatty acids with breast cancer risk in Western and Asian countries. Methods: The authors conducted a meta-analysis of published research articles on association of dietary intake ratio of n-3/n-6 polyunsaturated fatty acids (PUFAs) with breast cancer risk in Western and Asian countries published between January 2000 and February 2019 in online article databases of PubMed, ProQuest and EBSCO. Pooled risk ratios (RR) were calculated using fixed and random-effect models. Publication bias was visually evaluated by performing funnel plots and statistically assessed by Egger’s and Begg’s tests. Data were processed by using Stata version 14.2 (Stata Corporation). Results: This study reviewed 913 articles. There were 13 studies included in systematic review continued by meta-analysis of relevant data with total number of samples: 275,264 patients. The results showed dietary intake ratio of n-3/n-6 PUFAs with breast cancer risk in Western and Asian countries (RR = 0.99; 95%CI: 0.92-1.07). Dietary intake ratio of n-3/n-6 PUFAs with breast cancer risk in Western countries reached (RR = 0.98; 95%CI: 0.91-1.06) and there was any significant publication bias for studies included. Dietary intake ratio of n-3/n-6 PUFAs with breast cancer risk in Asian countries reached (RR = 1.18; 95%CI: 0.94-1.47) and there was not any significant publication bias for studies included. Conclusion: This analysis confirmed association of dietary intake ratio of n-3/n-6 PUFAs with breast cancer risk in Western and Asian countries. Higher dietary intake ratio is associated with lower risk of breast cancer in Asian countries rather than Western countries. This study suggests increasing dietary intake ratio n-3/n-6 PUFAs will provide benefit for breast cancer prevention.
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Affiliation(s)
- Ricvan Dana Nindrea
- Doctoral Program, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta City, Indonesia. ,Department of Public Health, Faculty of Medicine, Universitas Andalas, Padang City, Indonesia
| | - Teguh Aryandono
- Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta City, Indonesia
| | - Lutfan Lazuardi
- Department of Health Policy and Management, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta City, Indonesia
| | - Iwan Dwiprahasto
- Department of Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta City, Indonesia
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Jamilian M, Khademi L, Vahedpoor Z, Bahmani F, Mahmoodi S, Taghizadeh M, Asemi Z. Effects of Flaxseed Oil Omega-3 Fatty Acids Supplementation on Regression and Metabolic Status in Endometrial Hyperplasia: A randomized, Double-Blind, Placebo-Controlled Trial. Int J Prev Med 2019; 10:61. [PMID: 31198496 PMCID: PMC6547783 DOI: 10.4103/ijpvm.ijpvm_73_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 04/02/2019] [Indexed: 01/11/2023] Open
Abstract
Background: Data on the effects of omega-3 fatty acid supplementation on clinical symptoms and metabolic profiles in patients with endometrial hyperplasia (EH) are limited. This intervention was performed to assess the effects of omega-3 fatty acid supplementation on clinical symptoms and metabolic profiles in patients with endometrial hyperplasia (EH). Methods: This randomized, double-blind, placebo-controlled trial was conducted among 40 women diagnosed with simple endometrial hyperplasia (EH). EH diagnosis was performed based on specific diagnostic procedures of biopsy. Participants were randomised into two groups to intake 1,000 mg omega-3 fatty acid supplements from flaxseed oil (n = 20) or placebo (n = 20), twice a day for 12 weeks. Fasting blood samples were taken at baseline and after the 12-week intervention to determine related markers. Results: Compared with the placebo, omega-3 fatty acid supplementation significantly decreased fasting plasma glucose (FPG) (-7.1 ± 9.6 vs. +2.0 ± 4.9 mg/dL, P = 0.001), serum insulin levels (-1.5 ± 4.6 vs. +1.6 ± 3.9 μIU/mL, P = 0.02) and homeostasis model of assessment-insulin resistance (HOMA-IR) (-0.4 ± 1.1 vs. +0.4 ± 1.0, P = 0.02). In addition, a significant increase in plasma total antioxidant capacity (TAC) (+102.6 ± 69.6 vs. +5.0 ± 37.1 mmol/L, P < 0.001) and total glutathione (GSH) levels (+63.6 ± 84.9 vs. -3.0 ± 69.4 μmol/L, P = 0.01) were seen following the supplementation of omega-3 fatty acid compared with the placebo. Omega-3 fatty acid supplementation had no significant effect on regression, lipid profiles, and other biomarkers of inflammation and oxidative. Conclusions: In conclusion, we found that omega-3 fatty acid administration for 12 weeks to subjects with EH significantly improved FPG, insulin, HOMA-IR, TAC and GSH levels, but did not influence regression, lipid profiles, and other biomarkers of inflammatory and oxidative stress.
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Affiliation(s)
- Mehri Jamilian
- Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Leili Khademi
- Department of Gynecology and Obstetrics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Zahra Vahedpoor
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Fereshteh Bahmani
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Samaneh Mahmoodi
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Mohsen Taghizadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
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Nindrea RD, Aryandono T, Lazuardi L, Dwiprahasto I. Protective Effect of Omega-3 Fatty Acids in Fish Consumption Against Breast Cancer in Asian Patients: A Meta-Analysis. Asian Pac J Cancer Prev 2019; 20:327-332. [PMID: 30803190 PMCID: PMC6897018 DOI: 10.31557/apjcp.2019.20.2.327] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Objective: This systematic review and meta-analysis was performed to determine the protective effect of omega-3 fatty acids in fish consumption against breast cancer in Asian patients. Methods: The authors conducted a meta-analysis of published research articles on protective effect of omega-3 fatty acids in fish consumption against breast cancer in Asian patients published between January 2000 and July 2018 in online database of PubMed, ProQuest and EBSCO. Pooled odds ratios (OR) were calculated by using fixed and random-effect models. Publication bias was visually evaluated by using funnel plots and statistically assessed in Egger’s and Begg’s tests. Data were processed by Review Manager 5.3 (RevMan 5.3) and Stata version 14.2 (Stata Corporation). Results: This study reviewed 913 articles. There were 11 studies which conducted systematic review then continued by meta-analysis of relevant data with total number of samples were 130,365 patients. The results showed there was protective effect of omega-3 fatty acids in fish consumption against breast cancer in Asian patients (OR = 0.80 [95% CI 0.73-0.87, p <0.00001]). There was not any study with significant publication bias included. Conclusion: This analysis confirmed the protective effect of omega-3 fatty acids in fish consumption against breast cancer in Asian patients.
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Affiliation(s)
- Ricvan Dana Nindrea
- Doctoral Program, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta City, Indonesia.,Department of Public Health, Faculty of Medicine, Universitas Andalas, Padang City, Indonesia.
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24
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Khojastehfard M, Dolatkhah H, Somi MH, Nazari Soltan Ahmad S, Estakhri R, Sharifi R, Naghizadeh M, Rahmati-Yamchi M. The Effect of Oral Administration of PUFAs on the Matrix Metalloproteinase Expression in Gastric Adenocarcinoma Patients Undergoing Chemotherapy. Nutr Cancer 2019; 71:444-451. [PMID: 30616380 DOI: 10.1080/01635581.2018.1506494] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Gastric cancer is the third-leading cause of cancer-related mortality and the fifth most common cancer globally. Polyunsaturated fatty acids (PUFAs) are considered as functional ingredients that improve the efficacy of chemotherapeutic drugs. The aim of this study is to investigate the effect of PUFAs administration on matrix metalloproteinases (MMPs). METHODS This study was designed as a randomized, double-blind trial. Thirty-four newly diagnosed patients with gastric cancer were randomly divided into two groups: control group (n = 17) and case group (n =17). Both groups received the same dose (75 mg/m2) of cisplatin. Control group received cisplatin plus placebo and the case group received cisplatin plus PUFAs [3600 mg/day, for three courses (each course included 3 weeks)]. The mRNA and protein expression of MMPs determined by real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry (IHC), respectively. RESULTS The relative gene expression of MMP-1 and MMP-9 was significantly lower in case group than control. The protein expression of MMP-1 and MMP-9 was significantly lower in case group than control. CONCLUSION According to the results of this study, PUFAs reduced the expression of MMPs in gastric cancer cells. It seems that PUFAs may have an inhibitory effect on invasion and metastasis of gastric cancer cells.
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Affiliation(s)
- Mehran Khojastehfard
- a Department of Clinical Biochemistry, Faculty of Medicine , Tabriz university of Medical Sciences , Tabriz , Iran.,b Liver and Gastrointestinal Disease Research Center , Tabriz University of Medical Sciences , Tabriz , East-Azerbaijan , Iran
| | - Homayun Dolatkhah
- a Department of Clinical Biochemistry, Faculty of Medicine , Tabriz university of Medical Sciences , Tabriz , Iran
| | - Mohammad-Hossein Somi
- a Department of Clinical Biochemistry, Faculty of Medicine , Tabriz university of Medical Sciences , Tabriz , Iran
| | - Saeed Nazari Soltan Ahmad
- a Department of Clinical Biochemistry, Faculty of Medicine , Tabriz university of Medical Sciences , Tabriz , Iran
| | - Rasoul Estakhri
- c Department of Pathology, Faculty of Medicine , Tabriz University of Medical Sciences , Tabriz , East-Azerbaijan , Iran
| | - Rasoul Sharifi
- d Department of Molecular Biology, Faculty of Science , Islamic Azad University , Ahar Branch , Iran
| | - Mohsen Naghizadeh
- e Department of Clinical Biochemistry, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Mohammad Rahmati-Yamchi
- a Department of Clinical Biochemistry, Faculty of Medicine , Tabriz university of Medical Sciences , Tabriz , Iran.,b Liver and Gastrointestinal Disease Research Center , Tabriz University of Medical Sciences , Tabriz , East-Azerbaijan , Iran
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25
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Yum HW, Kim SH, Kang JX, Surh YJ. Amelioration of UVB-induced oxidative stress and inflammation in fat-1 transgenic mouse skin. Biochem Biophys Res Commun 2018; 502:1-8. [PMID: 29775616 DOI: 10.1016/j.bbrc.2018.05.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 01/01/2023]
Abstract
ω-3 polyunsaturated fatty acids (PUFAs), which are abundant in fish oils, are known to scavenge lipid peroxyl radicals and potentiate host immune defence. As UVB-induced oxidative stress and inflammation have been implicated in apoptotic cell death, this study was aimed to investigate the anti-inflammatory, anti-oxidative, and anti-apoptotic capacity of fat-1 transgenic mice capable of converting ω-6 to ω-3 PUFAs. Wild-type (WT) C57BL/6 mice and fat-1 mice were maintained on the AIN-93 diet supplemented with 10% safflower oil rich in ω-6 PUFAs for 5 weeks. The ω-3/ω-6 PUFA ratio was significantly higher in the dorsal skin of fat-1 mice than that in the WT mice. Upon single exposure to UVB (5.0 kJ/m2) radiation, fat-1 mice showed inflammatory as well as oxidative tissue damage and the expression of pro-inflammatory enzymes, cyclooxygenases-2 and inducible nitric oxide synthase in the skin to a much lesser extent than the WT mice. The protection of fat-1 mice from UVB-induced skin inflammation was associated with decreased phosphorylation of STAT3. Moreover, UVB-induced apoptosis was attenuated in fat-1 mouse skin. In comparison to WT animals, higher levels of Nrf2 and its target proteins, such as heme oxygenase-1, NAD(P)H:quinone oxidoreductase-1 and thioredoxin-1, were found in the skin of fat-1 mice.
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Affiliation(s)
- Hye-Won Yum
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Seong Hoon Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Jing X Kang
- Laboratory for Lipid Medicine and Technology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea.
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26
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Gucalp A, Zhou XK, Cook ED, Garber JE, Crew KD, Nangia JR, Bhardwaj P, Giri DD, Elemento O, Verma A, Wang H, Lee JJ, Vornik LA, Mays C, Weber D, Sepeda V, O'Kane H, Krasne M, Williams S, Morris PG, Heckman-Stoddard BM, Dunn BK, Hudis CA, Brown PH, Dannenberg AJ. A Randomized Multicenter Phase II Study of Docosahexaenoic Acid in Patients with a History of Breast Cancer, Premalignant Lesions, or Benign Breast Disease. Cancer Prev Res (Phila) 2018; 11:203-214. [PMID: 29453232 PMCID: PMC6290902 DOI: 10.1158/1940-6207.capr-17-0354] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/02/2018] [Accepted: 02/02/2018] [Indexed: 12/12/2022]
Abstract
Obesity, a cause of subclinical inflammation, is a risk factor for the development of postmenopausal breast cancer and is associated with poorer cancer outcomes. Docosahexaenoic acid (DHA), an omega-3 fatty acid, possesses anti-inflammatory properties. We hypothesized that treatment with DHA would reduce the expression of proinflammatory genes and aromatase, the rate-limiting enzyme for estrogen biosynthesis, in benign breast tissue of overweight/obese women. A randomized, placebo-controlled, double-blind phase II study of DHA given for 12 weeks to overweight/obese women with a history of stage I-III breast cancer, DCIS/LCIS, Paget's disease, or proliferative benign breast disease was carried out. In this placebo controlled trial, the primary objective was to determine whether DHA (1,000 mg by mouth twice daily) reduced breast tissue levels of TNFα. Secondary objectives included evaluation of the effect of DHA on breast tissue levels of COX-2, IL1β, aromatase, white adipose tissue inflammation, and gene expression by RNA-seq. Red blood cell fatty acid levels were measured to assess compliance. From July 2013 to November 2015, 64 participants were randomized and treated on trial (32 women per arm). Increased levels of omega-3 fatty acids in red blood cells were detected following treatment with DHA (P < 0.001) but not placebo. Treatment with DHA did not alter levels of TNFα (P = 0.71), or other biomarkers including the transcriptome in breast samples. Treatment with DHA was overall well-tolerated. Although compliance was confirmed, we did not observe changes in the levels of prespecified biomarkers in the breast after treatment with DHA when compared with placebo. Cancer Prev Res; 11(4); 203-14. ©2018 AACRSee related editorial by Fabian and Kimler, p. 187.
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Affiliation(s)
- Ayca Gucalp
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Xi K Zhou
- Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, New York
| | - Elise D Cook
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Judy E Garber
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Katherine D Crew
- Departments of Medicine/Epidemiology, New York-Presbyterian/Columbia University Medical Center, New York, New York
| | - Julie R Nangia
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Priya Bhardwaj
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Dilip D Giri
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Olivier Elemento
- Departments of Physiology and Biophysics/Computational Biomedicine, Weill Cornell Medical College, New York, New York
| | - Akanksha Verma
- Departments of Physiology and Biophysics/Computational Biomedicine, Weill Cornell Medical College, New York, New York
| | - Hanhan Wang
- Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, New York
| | - J Jack Lee
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lana A Vornik
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Carrie Mays
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Diane Weber
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Valerie Sepeda
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Holly O'Kane
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Margaret Krasne
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Samantha Williams
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Patrick G Morris
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Barbara K Dunn
- Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland
| | - Clifford A Hudis
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- American Society of Clinical Oncology, Alexandria, Virginia
| | - Powel H Brown
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, Texas
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27
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Chemical Profile and Antioxidant Activity of the Oil from Peony Seeds ( Paeonia suffruticosa Andr.). OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9164905. [PMID: 29081895 PMCID: PMC5634581 DOI: 10.1155/2017/9164905] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/08/2017] [Accepted: 08/30/2017] [Indexed: 11/17/2022]
Abstract
Peony seed oil (PSO) is a novel vegetable oil developed from the seeds of Paeonia suffruticosa Andr. The present study aimed to make an overall investigation on the chemical profile and antioxidant activities of PSO for reasonable development and utilization of this new resource food. Chemical analysis revealed that PSO was characterized by an uncommon high portion of α-linolenic acid (>38%), fairly low ratio of n-6 to n-3 polyunsaturated fatty acids (0.69), and much higher content of γ-tocopherol than various conventional seed oils. In vitro assay indicated that PSO is a more potent scavenger of free radicals than extra virgin olive oil. Moderate intake of PSO exhibited obvious protection against various oxidative damages such as tetrachloromethane-induced acute liver injury in mice and diet-induced hyperlipidemia in rats. The changes in the key indicators of oxidative injury and fatty acid composition in the liver caused by PSO administration were measured, and the results demonstrated that antioxidant properties of PSO are closely related to their characteristic chemical composition. Consequently, the present study provided new evidence for the health implications of PSO, which deserves further development for medical and nutritional use against oxidative damages that are associated with various diseases.
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28
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Yum HW, Park J, Park HJ, Shin JW, Cho YY, Kim SJ, Kang JX, Surh YJ. Endogenous ω-3 Fatty Acid Production by fat-1 Transgene and Topically Applied Docosahexaenoic Acid Protect against UVB-induced Mouse Skin Carcinogenesis. Sci Rep 2017; 7:11658. [PMID: 28912452 PMCID: PMC5599646 DOI: 10.1038/s41598-017-11443-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 08/24/2017] [Indexed: 01/18/2023] Open
Abstract
The present study was intended to explore the effects of endogenously produced ω-3 polyunsaturated fatty acids (PUFAs) on ultraviolet B (UVB)-induced skin inflammation and photocarcinogenesis using hairless fat-1 transgenic mice harboring ω-3 desaturase gene capable of converting ω-6 to ω-3 PUFAs. Upon exposure to UVB irradiation, fat-1 transgenic mice exhibited a significantly reduced epidermal hyperplasia, oxidative skin damage, and photocarcinogenesis as compared to wild type mice. The transcription factor, Nrf2 is a master regulator of anti-inflammatory and antioxidant gene expression. While the protein expression of Nrf2 was markedly enhanced, the level of its mRNA transcript was barely changed in the fat-1 transgenic mouse skin. Topical application of docosahexaenoic acid (DHA), a representative ω-3 PUFA, in wild type hairless mice induced expression of the Nrf2 target protein, heme oxygenase-1 in the skin and protected against UVB-induced oxidative stress, inflammation and papillomagenesis. Furthermore, transient overexpression of fat-1 gene in mouse epidermal JB6 cells resulted in the enhanced accumulation of Nrf2 protein. Likewise, DHA treated to JB6 cells inhibited Nrf2 ubiquitination and stabilized it. Taken together, our results indicate that functional fat-1 and topically applied DHA potentiate cellular defense against UVB-induced skin inflammation and photocarcinogenesis through elevated activation of Nrf2 and upregulation of cytoprotective gene expression.
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Affiliation(s)
- Hye-Won Yum
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Jin Park
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea
| | - Hyun-Jung Park
- Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea
| | - Jun Wan Shin
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Yong-Yeon Cho
- Integrated Research Institute of Pharmaceutical Sciences, College of Pharmacy, The Catholic University of Korea, Bucheon, Gyeonggi-do, 420-743, South Korea
| | - Su-Jung Kim
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea
| | - Jing X Kang
- Laboratory for Lipid Medicine and Technology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02129, USA
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea. .,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea. .,Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea.
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29
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Nichols HB, Schoemaker MJ, Wright LB, McGowan C, Brook MN, McClain KM, Jones ME, Adami HO, Agnoli C, Baglietto L, Bernstein L, Bertrand KA, Blot WJ, Boutron-Ruault MC, Butler L, Chen Y, Doody MM, Dossus L, Eliassen AH, Giles GG, Gram IT, Hankinson SE, Hoffman-Bolton J, Kaaks R, Key TJ, Kirsh VA, Kitahara CM, Koh WP, Larsson SC, Lund E, Ma H, Merritt MA, Milne RL, Navarro C, Overvad K, Ozasa K, Palmer JR, Peeters PH, Riboli E, Rohan TE, Sadakane A, Sund M, Tamimi RM, Trichopoulou A, Vatten L, Visvanathan K, Weiderpass E, Willett WC, Wolk A, Zeleniuch-Jacquotte A, Zheng W, Sandler DP, Swerdlow AJ. The Premenopausal Breast Cancer Collaboration: A Pooling Project of Studies Participating in the National Cancer Institute Cohort Consortium. Cancer Epidemiol Biomarkers Prev 2017; 26:1360-1369. [PMID: 28600297 PMCID: PMC5581673 DOI: 10.1158/1055-9965.epi-17-0246] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/28/2017] [Accepted: 05/23/2017] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is a leading cancer diagnosis among premenopausal women around the world. Unlike rates in postmenopausal women, incidence rates of advanced breast cancer have increased in recent decades for premenopausal women. Progress in identifying contributors to breast cancer risk among premenopausal women has been constrained by the limited numbers of premenopausal breast cancer cases in individual studies and resulting low statistical power to subcategorize exposures or to study specific subtypes. The Premenopausal Breast Cancer Collaborative Group was established to facilitate cohort-based analyses of risk factors for premenopausal breast cancer by pooling individual-level data from studies participating in the United States National Cancer Institute Cohort Consortium. This article describes the Group, including the rationale for its initial aims related to pregnancy, obesity, and physical activity. We also describe the 20 cohort studies with data submitted to the Group by June 2016. The infrastructure developed for this work can be leveraged to support additional investigations. Cancer Epidemiol Biomarkers Prev; 26(9); 1360-9. ©2017 AACR.
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Affiliation(s)
- Hazel B Nichols
- University of North Carolina, Gillings School of Global Public Health, Chapel Hill, North Carolina.
| | - Minouk J Schoemaker
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, United Kingdom
| | - Lauren B Wright
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, United Kingdom
| | - Craig McGowan
- University of North Carolina, Gillings School of Global Public Health, Chapel Hill, North Carolina
| | - Mark N Brook
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, United Kingdom
| | - Kathleen M McClain
- University of North Carolina, Gillings School of Global Public Health, Chapel Hill, North Carolina
| | - Michael E Jones
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, United Kingdom
| | - Hans-Olov Adami
- Karolinska Institutet, MEB, University of Oslo Institute of Health and Society, Sweden, Norway
| | - Claudia Agnoli
- Fondazione IRCCS Istituto Nazionale dei Tumori, Italy, France
| | - Laura Baglietto
- Centre for Research in Epidemiology and Population Health (CESP), France
| | - Leslie Bernstein
- Beckman Research Institute of City of Hope, Monrovia, California
| | | | - William J Blot
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | - Lesley Butler
- University of Pittsburgh Graduate School of Public Health, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Yu Chen
- NYU School of Medicine, New York, New York
| | - Michele M Doody
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Laure Dossus
- International Agency for Research on Cancer, France
| | - A Heather Eliassen
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard T.H. Chan School of Public Health and Harvard Medical School, Boston, Massachusetts
| | - Graham G Giles
- Cancer Council Victoria, University of Melbourne, Melbourne, Australia
| | - Inger T Gram
- University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Susan E Hankinson
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Boston, Massachusetts
| | | | - Rudolf Kaaks
- Division of Cancer Epidemiology, DKFZ, Heidelberg, Germany
| | | | - Victoria A Kirsh
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Cari M Kitahara
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | | | - Susanna C Larsson
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
| | - Eiliv Lund
- UiT (University of Tromsø), Tromsø, Norway
| | - Huiyan Ma
- Beckman Research Institute of City of Hope, Monrovia, California
| | | | - Roger L Milne
- Cancer Council Victoria, University of Melbourne, Melbourne, Australia
| | - Carmen Navarro
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP); Department of Health and Social Sciences, Universidad de Murcia, Murcia, Spain
| | - Kim Overvad
- Department of Public Health, Section for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Kotaro Ozasa
- Radiation Effects Research Foundation, Hiroshima, Japan
| | - Julie R Palmer
- Slone Epidemiology Center at Boston University, Boston, Massachusetts
| | | | - Elio Riboli
- School of Public Health, Imperial College London, United Kingdom
| | | | | | | | - Rulla M Tamimi
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard T.H. Chan School of Public Health and Harvard Medical School, Boston, Massachusetts
| | | | - Lars Vatten
- Norwegian University of Science and Technology, Trondheim, Norway
| | - Kala Visvanathan
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Elisabete Weiderpass
- Karolinska Institutet, Department of Epidemiology and Biostatistics, Oslo, Norway
- Department of Research, Head, Group of Etiological Cancer Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
- Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Walter C Willett
- Department of Nutrition and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Alicja Wolk
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
| | | | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, North Carolina
| | - Anthony J Swerdlow
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, United Kingdom
- Division of Breast Cancer Research, The Institute of Cancer Research, London, United Kingdom
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30
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Guo Y, Zhu SL, Wu YK, He Z, Chen YQ. Omega-3 free fatty acids attenuate insulin-promoted breast cancer cell proliferation. Nutr Res 2017. [PMID: 28633870 DOI: 10.1016/j.nutres.2017.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
High insulin levels in obese people are considered as a risk factor to induce breast carcinogenesis. And consumption of fish oils which mainly contain omega-3 fatty acids is associated with a reduced risk of breast cancer. However, whether omega-3 free fatty acids (FFAs) modulate insulin signaling pathway to prevent breast cancer is poorly understood. The current study tested the hypothesis that omega-3 FFAs attenuate insulin-induced breast cancer cell proliferation and regulate insulin signaling pathway. We show here that omega-3 FFAs attenuate MCF-7 cell proliferation and Akt and Erk1/2 phosphorylation levels stimulated by insulin. Knockdown Shp2 by siRNA resulted in significantly elevated omega-3 FFAs-activated Akt phosphorylation but failed to change insulin-stimulated Akt and Erk1/2 phosphorylation. And viable cell number was not affected by either downregulation of Shp2 expression or Erk1/2 inhibitor U0126 treatment. These observations indicated that omega-3 FFAs attenuate insulin-promoted breast cancer cell proliferation and insulin-activated Akt phosphorylation.
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Affiliation(s)
- Yang Guo
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China; Synergistic Innovation Center for Food Safety and Nutrition, School of Food Science and technology, Jiangnan University, 1800 Lihu Rd, Wuxi 214122, Jiangsu, People's Republic of China
| | - Sheng-Long Zhu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China; Synergistic Innovation Center for Food Safety and Nutrition, School of Food Science and technology, Jiangnan University, 1800 Lihu Rd, Wuxi 214122, Jiangsu, People's Republic of China
| | - Yi-Kuan Wu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China; Synergistic Innovation Center for Food Safety and Nutrition, School of Food Science and technology, Jiangnan University, 1800 Lihu Rd, Wuxi 214122, Jiangsu, People's Republic of China
| | - Zhao He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China; Synergistic Innovation Center for Food Safety and Nutrition, School of Food Science and technology, Jiangnan University, 1800 Lihu Rd, Wuxi 214122, Jiangsu, People's Republic of China; School of Medicine, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Yong-Quan Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China; Synergistic Innovation Center for Food Safety and Nutrition, School of Food Science and technology, Jiangnan University, 1800 Lihu Rd, Wuxi 214122, Jiangsu, People's Republic of China
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31
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Pan J, Zhou S, Xiang R, Zhao Z, Liu S, Ding N, Gong S, Lin Y, Li X, Bai X, Li F, Zhao AZ. An Ω-3 fatty acid desaturase-expressing gene attenuates prostate cancer proliferation by cell cycle regulation. Oncol Lett 2017; 13:3717-3721. [PMID: 28521474 DOI: 10.3892/ol.2017.5880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 10/25/2016] [Indexed: 12/20/2022] Open
Abstract
Previous studies have reported that Ω-6 and Ω-3 fatty acids have opposing effects on cancer development. Consuming high levels of long-chain Ω-3 polyunsaturated fatty acids (PUFAs) has been shown to reduce prostate cancer risk and increase chemotherapy sensitivity. The sdd17 gene encodes an Ω-3 fatty acid desaturase, which converts arachidonic acid into eicosapentaenoic acid (EPA). However, little is known regarding the function of the sdd17 gene in tumor cells in vitro. In the present study, prostate cancer cells were infected with the msdd17 gene, which allowed the endogenous production of Ω-3 PUFAs. The cells that expressed the msdd17 gene had high levels of long-chain Ω-3 PUFAs compared with the control cells. Expression of the msdd17 gene significantly inhibited prostate cancer cell proliferation. EPA exposure and msdd17 gene transfection each induced G2 cell cycle arrest and reduced E2F transcription factor 1 expression in prostate cancer cells. These results suggest that msdd17 gene transfection suppressed prostate cancer cell proliferation and induced G2 cell cycle arrest.
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Affiliation(s)
- Jinshun Pan
- Department of Biotherapy, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Sujin Zhou
- Collaborative Innovation Center for Cancer Medicine, The Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong 510006, P.R. China
| | - Rong Xiang
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Zhenggang Zhao
- Collaborative Innovation Center for Cancer Medicine, The Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong 510006, P.R. China
| | - Shanshan Liu
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Ning Ding
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Sijia Gong
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yan Lin
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaoxi Li
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaoming Bai
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Fanghong Li
- Collaborative Innovation Center for Cancer Medicine, The Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong 510006, P.R. China
| | - Allan Z Zhao
- Collaborative Innovation Center for Cancer Medicine, The Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong 510006, P.R. China
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Haraldsdottir A, Steingrimsdottir L, Valdimarsdottir UA, Aspelund T, Tryggvadottir L, Harris TB, Launer LJ, Mucci LA, Giovannucci EL, Adami HO, Gudnason V, Torfadottir JE. Early Life Residence, Fish Consumption, and Risk of Breast Cancer. Cancer Epidemiol Biomarkers Prev 2017; 26:346-354. [PMID: 27765796 PMCID: PMC5336533 DOI: 10.1158/1055-9965.epi-16-0473-t] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/12/2016] [Accepted: 09/23/2016] [Indexed: 01/08/2023] Open
Abstract
Background: Little is known about fish intake throughout the life course and the risk of breast cancer.Methods: We used data on the first residence of 9,340 women born 1908 to 1935 in the Reykjavik Study as well as food frequency data for different periods of life from a subgroup of the cohort entering the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study (n = 2,882).Results: During a mean follow-up of 27.3 years, 744 women were diagnosed with breast cancer in the Reykjavik Study. An inverse association of breast cancer was observed among women who lived through the puberty period in coastal villages, compared with women residing in the capital area [HR, 0.78; 95% confidence interval (CI), 0.61-0.99]. In the subgroup analysis of this Icelandic population, generally characterized by high fish intake, we found an indication of lower risk of breast cancer among women with high fish consumption (more than 4 portions per week) in adolescence (HR, 0.71; 95% CI, 0.44-1.13) and midlife (HR, 0.46; 95% CI, 0.22-0.97), compared with low consumers (2 portions per week or less). No association was found for fish liver oil consumption in any time period, which could be due to lack of a reference group with low omega-3 fatty acids intake in the study group.Conclusions: Our findings suggest that very high fish consumption in early to midlife may be associated with a reduced risk of breast cancer.Impact: Very high fish consumption in early adulthood to midlife may be associated with decreased risk of breast cancer. Cancer Epidemiol Biomarkers Prev; 26(3); 346-54. ©2016 AACR.
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Affiliation(s)
- Alfheidur Haraldsdottir
- Faculty of Food Science and Human Nutrition, University of Iceland, Reykjavik, Iceland.
- Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Laufey Steingrimsdottir
- Faculty of Food Science and Human Nutrition, University of Iceland, Reykjavik, Iceland
- Unit for Nutrition Research, University of Iceland and Landspitali National University Hospital Reykjavik, Reykjavik, Iceland
| | - Unnur A Valdimarsdottir
- Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Thor Aspelund
- Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- The Icelandic Heart Association, Kopavogur, Iceland
| | - Laufey Tryggvadottir
- The Icelandic Cancer Registry, Reykjavik, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Tamara B Harris
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland
| | - Lenore J Launer
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland
| | - Lorelei A Mucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Edward L Giovannucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Hans-Olov Adami
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Vilmundur Gudnason
- The Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Johanna E Torfadottir
- Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Unit for Nutrition Research, University of Iceland and Landspitali National University Hospital Reykjavik, Reykjavik, Iceland
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Nian X, Nagai Y, Jeffers C, N. Maxwell K, Zhang H. Dietary influence on estrogens and cytokines in breast cancer. AIMS MOLECULAR SCIENCE 2017. [DOI: 10.3934/molsci.2017.3.252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Wu J, Zeng R, Huang J, Li X, Zhang J, Ho JCM, Zheng Y. Dietary Protein Sources and Incidence of Breast Cancer: A Dose-Response Meta-Analysis of Prospective Studies. Nutrients 2016; 8:E730. [PMID: 27869663 PMCID: PMC5133114 DOI: 10.3390/nu8110730] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/12/2016] [Accepted: 11/03/2016] [Indexed: 12/15/2022] Open
Abstract
Protein is important to the human body, and different sources of protein may have different effects on the risk of breast cancer. Thus, we conducted a meta-analysis to investigate the association between different dietary protein sources and breast cancer risk. PubMed and several databases were searched until December 2015. Relevant articles were retrieved according to specific searching criteria. Forty-six prospective studies were included. The summary relative risk (RR) for highest versus lowest intake was 1.07 (95% confidence interval (CI) 1.01-1.14, I² = 34.6%) for processed meat, 0.92 (95% CI 0.84-1.00, I² = 0%) for soy food, 0.93 (95% CI 0.85-1.00, I² = 40.1%) for skim milk, and 0.90 (95% CI 0.82-1.00, I² = 0%) for yogurt. Similar conclusions were obtained in dose-response association for each serving increase: total red meat (RR: 1.07; 95% CI 1.01-1.14, I² = 7.1%), fresh red meat (RR: 1.13; 95% CI 1.01-1.26, I² = 56.4%), processed meat (RR: 1.09; 95% CI 1.02-1.17, I² = 11.8%), soy food (RR: 0.91; 95% CI 0.84-1.00, I² = 0%), and skim milk (RR: 0.96; 95% CI 0.92-1.00, I² = 11.9%). There was a null association between poultry, fish, egg, nuts, total milk, and whole milk intake and breast cancer risk. Higher total red meat, fresh red meat, and processed meat intake may be risk factors for breast cancer, whereas higher soy food and skim milk intake may reduce the risk of breast cancer.
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Affiliation(s)
- Jing Wu
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
| | - Rong Zeng
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
| | - Junpeng Huang
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
| | - Xufeng Li
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
| | - Jiren Zhang
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
| | - James Chung-Man Ho
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
| | - Yanfang Zheng
- Oncology Center, Zhujiang Hospital of Southern Medical University, Guangzhou 510000, China.
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Abdelmagid SA, MacKinnon JL, Janssen SM, Ma DWL. Role of n-3 Polyunsaturated Fatty Acids and Exercise in Breast Cancer Prevention: Identifying Common Targets. Nutr Metab Insights 2016; 9:71-84. [PMID: 27812288 PMCID: PMC5089819 DOI: 10.4137/nmi.s39043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 12/21/2022] Open
Abstract
Diet and exercise are recognized as important lifestyle factors that significantly influence breast cancer risk. In particular, dietary n-3 polyunsaturated fatty acids (PUFAs) have been shown to play an important role in breast cancer prevention. Growing evidence also demonstrates a role for exercise in cancer and chronic disease prevention. However, the potential synergistic effect of n-3 PUFA intake and exercise is yet to be determined. This review explores targets for breast cancer prevention that are common between n-3 PUFA intake and exercise and that may be important study outcomes for future research investigating the combined effect of n-3 PUFA intake and exercise. These lines of evidence highlight potential new avenues for research and strategies for breast cancer prevention.
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Affiliation(s)
- Salma A Abdelmagid
- Department of Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, Ontario, Canada
| | - Jessica L MacKinnon
- Department of Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, Ontario, Canada
| | - Sarah M Janssen
- Department of Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, Ontario, Canada
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, Ontario, Canada
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The Role of Docosahexaenoic Acid (DHA) in the Control of Obesity and Metabolic Derangements in Breast Cancer. Int J Mol Sci 2016; 17:505. [PMID: 27058527 PMCID: PMC4848961 DOI: 10.3390/ijms17040505] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/24/2016] [Accepted: 03/31/2016] [Indexed: 12/15/2022] Open
Abstract
Obesity represents a major under-recognized preventable risk factor for cancer development and recurrence, including breast cancer (BC). Healthy diet and correct lifestyle play crucial role for the treatment of obesity and for the prevention of BC. Obesity is significantly prevalent in western countries and it contributes to almost 50% of BC in older women. Mechanisms underlying obesity, such as inflammation and insulin resistance, are also involved in BC development. Fatty acids are among the most extensively studied dietary factors, whose changes appear to be closely related with BC risk. Alterations of specific ω-3 polyunsaturated fatty acids (PUFAs), particularly low basal docosahexaenoic acid (DHA) levels, appear to be important in increasing cancer risk and its relapse, influencing its progression and prognosis and affecting the response to treatments. On the other hand, DHA supplementation increases the response to anticancer therapies and reduces the undesired side effects of anticancer therapies. Experimental and clinical evidence shows that higher fish consumption or intake of DHA reduces BC cell growth and its relapse risk. Controversy exists on the potential anticancer effects of marine ω-3 PUFAs and especially DHA, and larger clinical trials appear mandatory to clarify these aspects. The present review article is aimed at exploring the capacity of DHA in controlling obesity-related inflammation and in reducing insulin resistance in BC development, progression, and response to therapies.
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Paliwoda RE, Newbigging AM, Wang Z, Le XC. Benefits and risks associated with consumption of Great Lakes fish containing omega-3 fatty acids and polychlorinated biphenyls (PCBs). J Environ Sci (China) 2016; 41:1-5. [PMID: 26969044 DOI: 10.1016/j.jes.2015.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Rebecca E Paliwoda
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
| | - Ashley M Newbigging
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
| | - Zhixin Wang
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
| | - X Chris Le
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada; Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada.
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38
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Haslam A, Robb SW, Bonner MR, Lindblad W, Allegra J, Shen Y, Vena JE. Polychlorinated biphenyls and omega-3 fatty acid exposure from fish consumption, and thyroid cancer among New York anglers. J Environ Sci (China) 2016; 41:270-277. [PMID: 26969074 DOI: 10.1016/j.jes.2015.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/04/2015] [Accepted: 05/21/2015] [Indexed: 06/05/2023]
Abstract
Fish from the Great Lakes contain polychlorinated biphenyls (PCBs) which have been shown to disrupt endocrine function and mimic thyroid hormones, but they also contain beneficial omega-3 fatty acids that may offer protection against endocrine cancers. The purpose of this study was to examine the effects of Lake Ontario fish consumption and the estimated consumption of PCBs and omega-3 fatty acids on the risk of thyroid cancer in a group of sport fishermen. Anglers from the New York State Angler Cohort Study were followed for cancer incidence from 1991-2008. Twenty-seven cases of incident thyroid cancer and 108 controls were included in the analyses. Total estimated fish consumption, estimated omega-3 fatty acid consumption, and estimated PCB consumption from Lake Ontario fish were examined for an association with the incidence of thyroid cancer, while matching on sex, and controlling for age and smoking status. Results from logistic regression indicate no significant associations between fish consumption, short-term estimated omega-3 fatty acids, or estimated PCB consumption from Great Lakes fish and the development of thyroid cancer, but it was suggested that long-term omega-3 fatty acid from Great Lakes fish may be protective of the development of thyroid cancer. In conclusion, fish consumption, with the possible concomitant PCBs, from the Great Lakes does not appear to increase the risk of thyroid cancer in New York anglers. Further research is needed in order to separate the individual health effects of PCBs from omega-3 fatty acids contained within the fish.
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Affiliation(s)
- Alyson Haslam
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA
| | - Sara Wagner Robb
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA.
| | - Matthew R Bonner
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University of Buffalo, Buffalo, NY, USA
| | - William Lindblad
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA
| | - Joey Allegra
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA
| | - Ye Shen
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA
| | - John E Vena
- Department of Public Health Sciences, School of Medicine, Medical University of South Carolina, Charleston, SC, USA
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Sun Y, Koh WP, Yuan JM, Choi H, Su J, Ong CN, van Dam RM. Plasma α-Linolenic and Long-Chain ω-3 Fatty Acids Are Associated with a Lower Risk of Acute Myocardial Infarction in Singapore Chinese Adults. J Nutr 2016; 146:275-82. [PMID: 26609174 PMCID: PMC4725432 DOI: 10.3945/jn.115.220418] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/02/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Long-chain marine omega-3 polyunsaturated fatty acids (n-3 PUFAs) are associated with a lower risk of acute myocardial infarction (AMI), but results for plant-derived α-linolenic acid (ALA; 18:3n-3) are inconsistent. OBJECTIVE We aimed to examine the association between plasma n-3 PUFAs and AMI risk and to explore potential mediation by cardiovascular disease risk factors. METHODS A nested case-control study with 744 incident AMI cases and 744 matched controls was conducted within the Singapore Chinese Health Study for participants aged 47-83 y. Conditional logistic regression was used to calculate the multivariable ORs for AMI with and without adjustment for cardiovascular disease risk factors, including blood lipids, blood pressure, C-reactive protein, serum creatinine, and glycated hemoglobin. RESULTS Plasma long-chain n-3 PUFAs were associated with lower AMI risk (multivariable OR: 0.62; 95% CI: 0.41, 0.94; for the highest compared with the lowest quartile; P-trend = 0.03). This association was not substantially changed after adjustment for cardiovascular disease risk factors. Dietary intakes of fish and long-chain n-3 PUFAs were similarly inversely associated with AMI risk. Plasma ALA was marginally associated with a lower risk of AMI (multivariable OR: 0.73; 95% CI: 0.51, 1.05; P-trend = 0.07) even in persons with high plasma concentrations of long-chain n-3 PUFAs. This association became significantly weaker after adjustment for blood pressure and LDL cholesterol. CONCLUSIONS Plasma long-chain n-3 PUFAs are associated with a lower risk of AMI in this Asian population. Plasma ALA may be marginally associated with reduced AMI risk, even in persons with high concentrations of long-chain n-3 PUFAs, and this association may be partially mediated by lower blood pressure and LDL cholesterol.
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Affiliation(s)
- Ye Sun
- Saw Swee Hock School of Public Health, and,NUS Graduate School for Integrative Sciences and Engineering, and
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, and,Duke-NUS Graduate Medical School Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA;,Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA; and
| | | | - Jin Su
- Saw Swee Hock School of Public Health, and
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, and,NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, and Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore (NUS) and National University Health System, Singapore; NUS Graduate School for Integrative Sciences and Engineering, and Department of Nutrition, Harvard School of Public Health, Boston, MA
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40
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Nie D, Wang Z, Zhang Y, Pang D, Ouyang H, Li LI. Fat-1 gene inhibits human oral squamous carcinoma cell proliferation through downregulation of β-catenin signaling pathways. Exp Ther Med 2015; 11:191-196. [PMID: 26889238 DOI: 10.3892/etm.2015.2847] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 10/13/2015] [Indexed: 11/05/2022] Open
Abstract
The ω-3 fatty acid desaturase (fat-1) gene encodes the enzyme that converts ω-6 polyunsaturated fatty acids (PUFAs) to ω-3 PUFAs. Numerous studies have suggested that the ratio of ω-6/ω-3 PUFAs has an impact on tumorigenesis. To investigate the biological function of the fat-1 gene in human oral squamous cell carcinoma (OSCC), the fat-1 gene was introduced into OSCC cells by transfection. The uptake of the gene was confirmed by reverse transcription-polymerase chain reaction and analyzed using gas chromatography. The antitumor effects and mechanisms of the fat-1 gene were evaluated by studying cell survival and tumor growth in vitro and in vivo. Gas chromatography results revealed that the cells transfected with the fat-1 gene had a higher ω-3/ω-6 PUFA ratio than cells transfected with the control vector. An MTT and DNA fragmentation assay indicated that the presence of the fat-1 gene in vitro significantly decreased OSCC cell proliferation and significantly increased the rate of apoptosis. Similar antitumor effects of the fat-1 gene were also observed in vivo. Immunohistochemistry analysis confirmed that Tca8113 cell tumors displayed a significant reduction in cell growth and cell survival following the introduction of the fat-1 gene. The current study suggests that the inhibitory effect of the fat-1 gene on tumor growth may be a result of a reduction in the expression of the tumor survival protein β-catenin. The results also support the theory that the ratio of ω-3/ω-6 PUFAs has an impact on OSCC tumor growth. The findings of the study provide notable molecular insight into the theory suggesting that ω-3 PUFAs are an intermediate for the chemoprevention and treatment of human OSCC.
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Affiliation(s)
- Daibang Nie
- College of Animal Science, Jilin University, Changchun, Jilin 130062, P.R. China
| | - Zuozhao Wang
- College of Chemistry, Jilin University, Changchun, Jilin 130062, P.R. China; College of Quartermaster Technology, Jilin University, Changchun, Jilin 130062, P.R. China
| | - Ying Zhang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, P.R. China
| | - Daxin Pang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, P.R. China
| | - Hongsheng Ouyang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, P.R. China
| | - L I Li
- College of Animal Science, Jilin University, Changchun, Jilin 130062, P.R. China
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41
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Pan J, Cheng L, Bi X, Zhang X, Liu S, Bai X, Li F, Zhao AZ. Elevation of ω-3 Polyunsaturated Fatty Acids Attenuates PTEN-deficiency Induced Endometrial Cancer Development through Regulation of COX-2 and PGE2 Production. Sci Rep 2015; 5:14958. [PMID: 26468779 PMCID: PMC4606560 DOI: 10.1038/srep14958] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/11/2015] [Indexed: 12/11/2022] Open
Abstract
Endometrial cancer is one of the most common gynecologic malignancies. Phosphatase and tensin homologue (PTEN)-mutation is frequently identified in endometrial cancer patients. Although high dietary intake of ω-3 polyunsaturated fatty acids (PUFAs) has been associated with reduced risk of endometrial cancer, the underlying mechanisms is still unknown. To this end, we evaluated the impact of ω-3 PUFAs using several endometrial cancer cellular and animal models. While ~27% and 40% of heterozygotic PTEN mutant mice developed endometrial cancer and atypical complex hyperplasia, respectively, none of the PTEN(+/-) mice developed cancer when we overexpressed an mfat-1 transgene, which allowed endogenous production of ω-3 PUFAs. Fish oil-enriched diet or expression of mfat-1 transgene significantly inhibited the growth of xenograft tumor derived from RL95-2 cells bearing a PTEN null mutation. At cellular level, ω-3 PUFAs treatment decreased the viability of RL95-2 cells, AKT phosphorylation, and cyclin D1 expression. These molecular events are primarily mediated through reduction of cyclooxygenase-2 (COX-2) expression and prostaglandin E2 (PGE2) production. Exogenous PGE2 treatment completely blunted the impact of ω-3 PUFAs on endometrial cancer. Thus, we revealed the direct inhibitory effects of ω-3 PUFAs on endometrial cancer development and the underlying mechanisms involving reduction of COX-2 and PGE2.
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Affiliation(s)
- Jinshun Pan
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Lixian Cheng
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Xinyun Bi
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Xin Zhang
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Shanshan Liu
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Xiaoming Bai
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Fanghong Li
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Allan Z. Zhao
- The Center of Metabolic Disease Research, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
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Khankari NK, Bradshaw PT, Steck SE, He K, Olshan AF, Shen J, Ahn J, Chen Y, Ahsan H, Terry MB, Teitelbaum SL, Neugut AI, Santella RM, Gammon MD. Polyunsaturated fatty acid interactions and breast cancer incidence: a population-based case-control study on Long Island, New York. Ann Epidemiol 2015; 25:929-35. [PMID: 26452606 DOI: 10.1016/j.annepidem.2015.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 08/27/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022]
Abstract
PURPOSE Experimental studies demonstrate that ω-3 polyunsaturated fatty acids (PUFAs) inhibit inflammatory eicosanoids generated by ω-6 PUFAs. Epidemiologic studies on dietary ω-3 PUFA intake show consistent inverse associations with breast cancer incidence among Asian populations, where ω-3, relative to ω-6, intake is high. In contrast, associations are inconsistent among Western populations, where intake of ω-3, relative to ω-6, is low. We hypothesized that examining interactions between ω-3 and ω-6 would help elucidate the PUFA-breast cancer association in the United States. METHODS In a Long Island, New York, population-based study of 1463 breast cancer cases and 1500 controls, we estimated multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) using unconditional logistic regression to examine interactions between ω-3 and ω-6 intake. RESULTS We observed a super-additive interaction (relative excess risk due to interaction = 0.41; 95% confidence interval = 0.06-0.76) between ω-3 and ω-6 intake in association with breast cancer incidence, although the CIs for the joint exposure of low ω-3/high ω-6 compared to high ω-3/low ω-6 intake were wide (odds ratio = 1.20; 95% confidence interval = 0.85-1.69). CONCLUSIONS Breast cancer risk reduction may be possible for U.S. women with dietary consumption of higher ω-3, which has anti-inflammatory properties, in concert with lower ω-6, which induces inflammation. Replication from future U.S.-based investigations is needed.
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Affiliation(s)
- Nikhil K Khankari
- Department of Epidemiology, University of North Carolina, Chapel Hill.
| | | | - Susan E Steck
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia
| | - Ka He
- Department of Epidemiology and Biostatistics, Indiana University, Bloomington, IN
| | - Andrew F Olshan
- Department of Epidemiology, University of North Carolina, Chapel Hill
| | - Jing Shen
- Department of Environmental Health, Columbia University, New York, NY
| | - Jiyoung Ahn
- Department of Population Health, New York University, New York; Department of Environmental Medicine, New York University, New York
| | - Yu Chen
- Department of Population Health, New York University, New York; Department of Environmental Medicine, New York University, New York
| | - Habibul Ahsan
- Department of Health Studies and Comprehensive Cancer Center, University of Chicago, Chicago, IL
| | - Mary Beth Terry
- Department of Epidemiology, Columbia University, New York, NY
| | - Susan L Teitelbaum
- Department of Preventive Medicine, Mount Sinai School of Medicine, New York, NY
| | - Alfred I Neugut
- Department of Epidemiology, Columbia University, New York, NY; Department of Medicine, Columbia University, New York, NY
| | - Regina M Santella
- Department of Environmental Health, Columbia University, New York, NY
| | - Marilie D Gammon
- Department of Epidemiology, University of North Carolina, Chapel Hill
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43
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Gucalp A, Iyengar NM, Hudis CA, Dannenberg AJ. Targeting obesity-related adipose tissue dysfunction to prevent cancer development and progression. Semin Oncol 2015; 43:154-160. [PMID: 26970134 DOI: 10.1053/j.seminoncol.2015.09.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The incidence of obesity, a leading modifiable risk factor for common solid tumors, is increasing. Effective interventions are needed to minimize the public health implications of obesity. Although the mechanisms linking increased adiposity to malignancy are incompletely understood, growing evidence points to complex interactions among multiple systemic and tissue-specific pathways including inflamed white adipose tissue. The metabolic and inflammatory consequences of white adipose tissue dysfunction collectively provide a plausible explanation for the link between overweight/obesity and carcinogenesis. Gaining a better understanding of these underlying molecular pathways and developing risk assessment tools that identify at-risk populations will be critical in implementing effective and novel cancer prevention and management strategies.
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Affiliation(s)
- Ayca Gucalp
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Medicine, Weill Cornell Medical College, New York, NY, USA.
| | - Neil M Iyengar
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Clifford A Hudis
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Medicine, Weill Cornell Medical College, New York, NY, USA
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44
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Mohammed A, Janakiram NB, Pant S, Rao CV. Molecular Targeted Intervention for Pancreatic Cancer. Cancers (Basel) 2015; 7:1499-542. [PMID: 26266422 PMCID: PMC4586783 DOI: 10.3390/cancers7030850] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 07/24/2015] [Accepted: 08/04/2015] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer (PC) remains one of the worst cancers, with almost uniform lethality. PC risk is associated with westernized diet, tobacco, alcohol, obesity, chronic pancreatitis, and family history of pancreatic cancer. New targeted agents and the use of various therapeutic combinations have yet to provide adequate treatments for patients with advanced cancer. To design better preventive and/or treatment strategies against PC, knowledge of PC pathogenesis at the molecular level is vital. With the advent of genetically modified animals, significant advances have been made in understanding the molecular biology and pathogenesis of PC. Currently, several clinical trials and preclinical evaluations are underway to investigate novel agents that target signaling defects in PC. An important consideration in evaluating novel drugs is determining whether an agent can reach the target in concentrations effective to treat the disease. Recently, we have reported evidence for chemoprevention of PC. Here, we provide a comprehensive review of current updates on molecularly targeted interventions, as well as dietary, phytochemical, immunoregulatory, and microenvironment-based approaches for the development of novel therapeutic and preventive regimens. Special attention is given to prevention and treatment in preclinical genetically engineered mouse studies and human clinical studies.
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Affiliation(s)
- Altaf Mohammed
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hem-Onc Section, PC Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Naveena B Janakiram
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hem-Onc Section, PC Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Shubham Pant
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hem-Onc Section, PC Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Chinthalapally V Rao
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hem-Onc Section, PC Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
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45
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Kiyabu GY, Inoue M, Saito E, Abe SK, Sawada N, Ishihara J, Iwasaki M, Yamaji T, Shimazu T, Sasazuki S, Shibuya K, Tsugane S. Fish, n - 3 polyunsaturated fatty acids and n - 6 polyunsaturated fatty acids intake and breast cancer risk: The Japan Public Health Center-based prospective study. Int J Cancer 2015; 137:2915-26. [PMID: 26147326 DOI: 10.1002/ijc.29672] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/25/2015] [Indexed: 12/15/2022]
Abstract
Limited and inconsistent studies exist on the association between the intake of fish, n - 3 polyunsaturated fatty acids (PUFA) and n - 6 PUFA and breast cancer. Fish and n - 3 PUFA support various body functions and are thought to reduce the carcinogenesis risk while n - 6 PUFA may have a positive association with cancer risk. We examined the association between intake of fish, n - 3 PUFA [including eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), docosapentaenoic acid (DPA) and alpha-linolenic acid (ALA)] and n - 6 PUFA and breast cancer with subanalyses on estrogen (ER) and progesterone receptor (PR) status. We investigated 38,234 Japanese women aged 45-74 years from the Japan Public Health Center-based prospective study (JPHC study), and during 14.1 years of follow-up time, 556 breast cancer cases were newly diagnosed. Breast cancer risk was not associated with the intake of total fish, n - 3 PUFA and n - 6 PUFA when analyzed in totality through multivariable Cox proportional hazards regression models with age as the time scale. Intake of total n - 6 was positively associated with the development of ER+PR+ tumors [multivariable-adjusted HR Q4 vs. Q1 = 2.94 (95% CI: 1.26-6.89; ptrend = 0.02)]. Intake of EPA was associated with a decreased breast cancer risk for ER+PR+ tumors [multivariable-adjusted HR Q2 vs. Q1 = 0.47 (95% CI: 0.25-0.89; ptrend =0.47)]. While the overall association between the intake of total fish, n - 3 PUFA and n - 6 PUFA and breast cancer risk is null, for ER+PR+ tumors, a positive association was seen between n - 6 intake and breast cancer, and a marginally significant inverse association was observed for EPA intake.
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Affiliation(s)
- Grace Y Kiyabu
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Manami Inoue
- AXA Department of Health and Human Security, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Eiko Saito
- AXA Department of Health and Human Security, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Sarah K Abe
- AXA Department of Health and Human Security, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Junko Ishihara
- Department of Nutrition Management, Sagami Women's University, Kanagawa Prefecture, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Taiki Yamaji
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Shizuka Sasazuki
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Kenji Shibuya
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
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46
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Wiggins AKA, Kharotia S, Mason JK, Thompson LU. α-Linolenic Acid Reduces Growth of Both Triple Negative and Luminal Breast Cancer Cells in High and Low Estrogen Environments. Nutr Cancer 2015; 67:1001-9. [PMID: 26134471 DOI: 10.1080/01635581.2015.1053496] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Flaxseed, rich in α-linolenic acid (ALA), is a complementary breast cancer (BC) therapy; however ALA effectiveness and mechanism are unclear. Variation in cellular expression of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), and estrogen (E2) levels may alter ALA effectiveness. This research determined the effect of ALA on growth, apoptosis, and phospholipid fatty acids of 4 BC cell lines with varying receptor expression ± E2. MCF-7 (ER+/PR+/HER2-), BT-474 (ER+/PR+/HER2+), MDA-MB-231 (ER-/PR-/HER2-) and MDA-MB-468 (ER-/PR-/HER2-) cells were incubated with ALA (50-200 μM) ± 1 nM E2 for 48-72 h. ALA dose-dependently reduced growth, measured by trypan blue exclusion, of all cells (55-80% with 75 μM), and this effect was not altered by E2. ALA (75 μM)+E2 induced apoptosis, measured by flow cytometry (up to 111.2%). Decreased growth and increased apoptosis is related to increased cell phospholipid % ALA (up to 25.1%), measured by gas chromatography. ALA is shown for the first time to reduce cell growth and induce apoptosis regardless of receptor expression and E2 environment, by incorporating into BC phospholipids, supporting the use of ALA and ALA-rich foods as a safe, inexpensive complementary therapy for a wide range of BC.
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Affiliation(s)
- Ashleigh K A Wiggins
- a Department of Nutritional Sciences, Faculty of Medicine, University of Toronto , Toronto , Ontario , Canada
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47
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Abstract
Women with evidence of high intake ratios of the marine omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) relative to the omega-6 arachidonic acid have been found to have a reduced risk of breast cancer compared with those with low ratios in some but not all case–control and cohort studies. If increasing EPA and DHA relative to arachidonic acid is effective in reducing breast cancer risk, likely mechanisms include reduction in proinflammatory lipid derivatives, inhibition of nuclear factor-κB-induced cytokine production, and decreased growth factor receptor signaling as a result of alteration in membrane lipid rafts. Primary prevention trials with either risk biomarkers or cancer incidence as endpoints are underway but final results of these trials are currently unavailable. EPA and DHA supplementation is also being explored in an effort to help prevent or alleviate common problems after a breast cancer diagnosis, including cardiac and cognitive dysfunction and chemotherapy-induced peripheral neuropathy. The insulin-sensitizing and anabolic properties of EPA and DHA also suggest supplementation studies to determine whether these omega-3 fatty acids might reduce chemotherapy-associated loss of muscle mass and weight gain. We will briefly review relevant omega-3 fatty acid metabolism, and early investigations in breast cancer prevention and survivorship.
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48
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Fabian CJ, Kimler BF, Hursting SD. Omega-3 fatty acids for breast cancer prevention and survivorship. Breast Cancer Res 2015. [PMID: 25936773 DOI: 10.1186/s13058-015-0571-6/tables/3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Women with evidence of high intake ratios of the marine omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) relative to the omega-6 arachidonic acid have been found to have a reduced risk of breast cancer compared with those with low ratios in some but not all case-control and cohort studies. If increasing EPA and DHA relative to arachidonic acid is effective in reducing breast cancer risk, likely mechanisms include reduction in proinflammatory lipid derivatives, inhibition of nuclear factor-κB-induced cytokine production, and decreased growth factor receptor signaling as a result of alteration in membrane lipid rafts. Primary prevention trials with either risk biomarkers or cancer incidence as endpoints are underway but final results of these trials are currently unavailable. EPA and DHA supplementation is also being explored in an effort to help prevent or alleviate common problems after a breast cancer diagnosis, including cardiac and cognitive dysfunction and chemotherapy-induced peripheral neuropathy. The insulin-sensitizing and anabolic properties of EPA and DHA also suggest supplementation studies to determine whether these omega-3 fatty acids might reduce chemotherapy-associated loss of muscle mass and weight gain. We will briefly review relevant omega-3 fatty acid metabolism, and early investigations in breast cancer prevention and survivorship.
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Affiliation(s)
- Carol J Fabian
- Department of Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA.
| | - Bruce F Kimler
- Department of Radiation Oncology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA.
| | - Stephen D Hursting
- Department of Nutrition, University of North Carolina, 135 Dauer Drive, Chapel Hill, NC, 27599, USA.
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49
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Witte TR, Hardman WE. The effects of omega-3 polyunsaturated Fatty Acid consumption on mammary carcinogenesis. Lipids 2015; 50:437-46. [PMID: 25860692 DOI: 10.1007/s11745-015-4011-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 03/23/2015] [Indexed: 12/21/2022]
Abstract
The consumption of omega-3 polyunsaturated fatty acids (n-3 PUFA) is associated with a reduced risk of breast cancer. Studies in animals and in vitro have demonstrated mechanisms that could explain this apparent effect, but clinical and epidemiological studies have returned conflicting results on the practical benefits of dietary n-3 PUFA for prevention of breast cancer. Effects are often only significant within a population when comparing the highest n-3 PUFA consumption group to the lowest n-3 group or highest n-6 group. The beneficial effects of n-3 PUFA eicosapentaenoic and docosahexaenoic on the risk of breast cancer are dose dependent and are negatively affected by total n-6 consumption. The majority of the world population, including the most highly developed regions, consumes insufficient n-3 PUFA to significantly reduce breast cancer risk. This review discusses the physiological and dietary context in which reduction of breast cancer risk may occur, some proposed mechanisms of action and meaningful recommendations for consumption of n-3 PUFA in the diet of developed regions.
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Affiliation(s)
- Theodore R Witte
- Department of Biochemistry and Microbiology, Marshall University School of Medicine, 1600 Medical Center Drive, Huntington, WV, 25701, USA
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50
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Pogash TJ, El-Bayoumy K, Amin S, Gowda K, de Cicco RL, Barton M, Su Y, Russo IH, Himmelberger JA, Slifker M, Manni A, Russo J. Oxidized derivative of docosahexaenoic acid preferentially inhibit cell proliferation in triple negative over luminal breast cancer cells. In Vitro Cell Dev Biol Anim 2014; 51:121-7. [PMID: 25413005 DOI: 10.1007/s11626-014-9822-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 09/15/2014] [Indexed: 02/02/2023]
Abstract
Omega-3 polyunsaturated fatty acids (PUFAs) exert an anticancer effect by affecting multiple cellular mechanisms leading to inhibition of proliferation and induction of apoptosis. It is well known that breast cancer comprises distinct molecular subtypes which differ in their responsiveness to therapeutic and preventive agents. We tested the hypothesis that n-3FA may preferentially affect triple-negative breast cancer cells for which no targeted intervention is presently available. The in vitro antiproliferative effects of n-3 PUFA docosahexaenoic acid (DHA) and its metabolite, 4-OH-DHA as well as its putative metabolite 4-OXO-DHA, were tested in five triple-negative human basal breast cell lines at different stages of transformation (MCF-10F, trMCF, bsMCF, MDA-MB-231, and BT-549) and three luminal breast cancer cell lines (MCF-7, T-47D, and SK-BR-3). Cell proliferation was measured with the tetrazolium MTT (3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide) assay. DHA and its oxidized derivatives significantly inhibited cell proliferation (20-90% reduction) of both basal and luminal breast cancer cell lines. The inhibitory effect was more pronounced on triple-negative basal breast cancer cell lines as compared to luminal breast cancer cell lines after 4-OXO-DHA treatment. Our data provide novel information regarding the preferential antitumor effect of oxidized derivatives of DHA on basal type breast cancer.
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Affiliation(s)
- Thomas J Pogash
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA, 19111, USA,
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