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Mecca M, Sichetti M, Giuseffi M, Giglio E, Sabato C, Sanseverino F, Marino G. Synergic Role of Dietary Bioactive Compounds in Breast Cancer Chemoprevention and Combination Therapies. Nutrients 2024; 16:1883. [PMID: 38931238 PMCID: PMC11206589 DOI: 10.3390/nu16121883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Breast cancer is the most common tumor in women. Chemotherapy is the gold standard for cancer treatment; however, severe side effects and tumor resistance are the major obstacles to chemotherapy success. Numerous dietary components and phytochemicals have been found to inhibit the molecular and signaling pathways associated with different stages of breast cancer development. In particular, this review is focused on the antitumor effects of PUFAs, dietary enzymes, and glucosinolates against breast cancer. The major databases were consulted to search in vitro and preclinical studies; only those with solid scientific evidence and reporting protective effects on breast cancer treatment were included. A consistent number of studies highlighted that dietary components and phytochemicals can have remarkable therapeutic effects as single agents or in combination with other anticancer agents, administered at different concentrations and via different routes of administration. These provide a natural strategy for chemoprevention, reduce the risk of breast cancer recurrence, impair cell proliferation and viability, and induce apoptosis. Some of these bioactive compounds of dietary origin, however, show poor solubility and low bioavailability; hence, encapsulation in nanoformulations are promising tools able to increase clinical efficiency.
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Affiliation(s)
- Marisabel Mecca
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy; (M.G.); (E.G.); (C.S.)
| | - Marzia Sichetti
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy; (M.G.); (E.G.); (C.S.)
| | - Martina Giuseffi
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy; (M.G.); (E.G.); (C.S.)
| | - Eugenia Giglio
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy; (M.G.); (E.G.); (C.S.)
| | - Claudia Sabato
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy; (M.G.); (E.G.); (C.S.)
| | - Francesca Sanseverino
- Unit of Gynecologic Oncology, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy;
| | - Graziella Marino
- Unit of Breast Cancer, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, Italy;
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Wu D, Thompson LU, Comelli EM. Cecal microbiota and mammary gland microRNA signatures are related and modifiable by dietary flaxseed with implications for breast cancer risk. Microbiol Spectr 2024; 12:e0229023. [PMID: 38059614 PMCID: PMC10783090 DOI: 10.1128/spectrum.02290-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 10/29/2023] [Indexed: 12/08/2023] Open
Abstract
IMPORTANCE Breast cancer is a leading cause of cancer mortality worldwide. There is a growing interest in using dietary approaches, including flaxseed (FS) and its oil and lignan components, to mitigate breast cancer risk. Importantly, there is recognition that pubertal processes and lifestyle, including diet, are important for breast health throughout life. Mechanisms remain incompletely understood. Our research uncovers a link between mammary gland miRNA expression and the gut microbiota in young female mice. We found that this relationship is modifiable via a dietary intervention. Using data from The Cancer Genome Atlas, we also show that the expression of miRNAs involved in these relationships is altered in breast cancer in humans. These findings highlight a role for the gut microbiome as a modulator, and thus a target, of interventions aiming at reducing breast cancer risk. They also provide foundational knowledge to explore the effects of early life interventions and mechanisms programming breast health.
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Affiliation(s)
- Diana Wu
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
| | - Lilian U. Thompson
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
| | - Elena M. Comelli
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
- Joannah and Brian Lawson Centre for Child Nutrition, University of Toronto, Toronto, Canada
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Su CC, Yu CC, Shih YW, Liu KL, Chen HW, Wu CC, Yang YC, Yeh EL, Li CC. Protective Effect of Alpha-Linolenic Acid on Human Oral Squamous Cell Carcinoma Metastasis and Apoptotic Cell Death. Nutrients 2023; 15:4992. [PMID: 38068849 PMCID: PMC10708481 DOI: 10.3390/nu15234992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/19/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Oral cancer ranks sixth among Taiwan's top 10 cancers and most patients with poor prognosis acquire metastases. The essential fatty acid alpha-linolenic acid (ALA) has been found to diminish many cancer properties. However, the anti-cancer activity of ALA in oral cancer has yet to be determined. We examined the mechanisms underlying ALA inhibition of metastasis and induction of apoptotic cell death in oral squamous cell carcinoma (OSCC). Migration and invasion assays confirmed the cancer cells' EMT capabilities, whereas flow cytometry and Western blotting identified molecular pathways in OSCC. ALA dramatically reduced cell growth in a concentration-dependent manner according to the findings. Low concentrations of ALA (100 or 200 μM) inhibit colony formation, the expression of Twist and EMT-related proteins, the expression of MMP2/-9 proteins, and enzyme activity, as well as cell migration and invasion. Treatment with high concentrations of ALA (200 or 400 μM) greatly increases JNK phosphorylation and c-jun nuclear accumulation and then upregulates the FasL/caspase8/caspase3 and Bid/cytochrome c/caspase9/caspase3 pathways, leading to cell death. Low concentrations of ALA inhibit SAS and GNM cell migration and invasion by suppressing Twist and downregulating EMT-related proteins or by decreasing the protein expression and enzyme activity of MMP-2/-9, whereas high concentrations of ALA promote apoptosis by activating the JNK/FasL/caspase 8/caspase 3-extrinsic pathway and the Bid/cytochrome c/caspase 9 pathway. ALA demonstrates potential as a treatment for OSCC patients.
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Affiliation(s)
- Ching-Chyuan Su
- Antai Medical Care Corporation Antai Tian-Sheng Memorial Hospital, Pingtung 92842, Taiwan;
- Department of Beauty Science, Meiho University, Pingtung 91202, Taiwan
| | - Cheng-Chia Yu
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan;
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Institute of Oral Sciences, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Yi-Wen Shih
- Department of Nutrition, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Kai-Li Liu
- Department of Nutrition, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Haw-Wen Chen
- Department of Nutrition, China Medical University, Taichung 40678, Taiwan
| | - Chih-Chung Wu
- Department of Food and Nutrition, Providence University, Taichung 43301, Taiwan
| | - Ya-Chen Yang
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung 41354, Taiwan
| | - En-Ling Yeh
- Department of Nutrition, College of Medical and Health Care, Hung-Kuang University, Taichung 43302, Taiwan
| | - Chien-Chun Li
- Department of Nutrition, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
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4
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He WS, Wang Q, Zhao L, Li J, Li J, Wei N, Chen G. Nutritional composition, health-promoting effects, bioavailability, and encapsulation of tree peony seed oil: a review. Food Funct 2023; 14:10265-10285. [PMID: 37929791 DOI: 10.1039/d3fo04094a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Tree peony is cultivated worldwide in large quantities due to its exceptional ornamental and medicinal value. In recent years, the edible value of tree peony seed oil (TPSO) has garnered significant attention for its high content of alpha-linolenic acid (ALA, >40%) and other beneficial minor components, including phytosterols, tocopherols, squalene, and phenolics. This review provides a systematic summary of the nutritional composition and health-promoting effects of TPSO, with a specific focus on its digestion, absorption, bioavailability, and encapsulation status. Additionally, information on techniques for extracting and identifying adulteration of TPSO, as well as its commercial applications and regulated policies, is included. Thanks to its unique nutrients, TPSO offers a wide range of health benefits, such as hypolipidemic, anti-obesity, cholesterol-lowering, antioxidant and hypoglycemic activities, and regulation of the intestinal microbiota. Consequently, TPSO shows promising potential in the food and cosmetic industries and should be cultivated in more countries. However, the application of TPSO is hindered by its low bioavailability, poor stability, and limited water dispersibility. Therefore, it is crucial to develop effective delivery strategies, such as microencapsulation and emulsion, to overcome these limitations. In conclusion, this review provides a comprehensive understanding of the nutritional value of TPSO and emphasizes the need for further research on its nutrition and product development.
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Affiliation(s)
- Wen-Sen He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Qingzhi Wang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Liying Zhao
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Jie Li
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Junjie Li
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Na Wei
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Gang Chen
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, 311300, Zhejiang, China
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Al-Madhagy S, Ashmawy NS, Mamdouh A, Eldahshan OA, Farag MA. A comprehensive review of the health benefits of flaxseed oil in relation to its chemical composition and comparison with other omega-3-rich oils. Eur J Med Res 2023; 28:240. [PMID: 37464425 DOI: 10.1186/s40001-023-01203-6] [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: 11/02/2022] [Accepted: 06/28/2023] [Indexed: 07/20/2023] Open
Abstract
Flaxseed (Linum usitatissimum L) is an ancient perennial plant species regarded as a multipurpose plant owing to its richness in omega-3 polyunsaturated fatty acids (PUFA) including α-linolenic acid (ALA). The extensive biochemical analysis of flaxseed resulted in the identification of its bioactive, i.e., lignans with potential application in the improvement of human health. Flaxseed oil, fibers, and lignans exert potential health benefits including reduction of cardiovascular disease, atherosclerosis, diabetes, cancer, arthritis, osteoporosis, and autoimmune and neurological disorders that have led to the diversification of flaxseed plant applications. This comprehensive review focuses on flaxseed oil as the major product of flaxseed with emphasis on the interrelationship between its chemical composition and biological effects. Effects reviewed include antioxidant, anti-inflammatory, antimicrobial, anticancer, antiulcer, anti-osteoporotic, cardioprotective, metabolic, and neuroprotective. This study provides an overview of flaxseed oil effects with the reported action mechanisms related to its phytochemical composition and in comparison, to other PUFA-rich oils. This study presents the most updated and comprehensive review summarizing flaxseed oil's health benefits for the treatment of various diseases.
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Affiliation(s)
- Somaia Al-Madhagy
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr El-Aini St., Cairo, 11562, Egypt
| | - Naglaa S Ashmawy
- Pharmacognosy Department, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Ayat Mamdouh
- Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Omayma A Eldahshan
- Pharmacognosy Department, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
- Center of Drug Discovery Research and Development, Ain Shams University, Cairo, 11566, Egypt.
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr El-Aini St., Cairo, 11562, Egypt.
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6
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Nutraceutical-Based Nanoformulations for Breast and Ovarian Cancer Treatment. Int J Mol Sci 2022; 23:ijms231912032. [PMID: 36233349 PMCID: PMC9569679 DOI: 10.3390/ijms231912032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 11/17/2022] Open
Abstract
Different strategies have been investigated for a more satisfactory treatment of advanced breast cancer, including the adjuvant use of omega-3 polyunsaturated fatty acids (PUFAs). These nutritional compounds have been shown to possess potent anti-inflammatory and antiangiogenic activities, the capacity to affect transduction pathways/receptors involved in cell growth and to reprogram tumor microenvironment. Omega-3 PUFA-containing nanoformulations designed for drug delivery in breast cancer were shown to potentiate the effects of enclosed drugs, enhance drug delivery to target sites, and minimize drug-induced side effects. We have critically analyzed here the results of the most recent studies investigating the effects of omega-3 PUFA-containing nanoformulations in breast cancer. The anti-neoplastic efficacy of omega-3 PUFAs has also been convincingly demonstrated by using preclinical in vivo models of ovarian cancer. The results obtained are critically analyzed here and seem to provide a sufficient rationale to move to still lacking interventional clinical trials, as well as to evaluate possible advantages of enclosing omega-3 PUFAs to drug-delivery nanosystems for ovarian cancer. Future perspectives in this area are also provided.
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Shadyro O, Sosnovskaya A, Edimecheva I, Ihnatovich L, Dubovik B, Krasny S, Tzerkovsky D, Protopovich E. In Vivo Antitumoral Effects of Linseed Oil and Its Combination With Doxorubicin. Front Pharmacol 2022; 13:882197. [PMID: 35800445 PMCID: PMC9254224 DOI: 10.3389/fphar.2022.882197] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/22/2022] [Indexed: 11/29/2022] Open
Abstract
Linseed oil (LO) is known for its exceptional nutritional value due to the high content of alpha-linolenic acid (ALA), an essential omega-3 polyunsaturated fatty acid; its anticarcinogenic effect has been established in several experimental and epidemiological studies. As an adjuvant of chemotherapeutic agents, LO and other ALA-rich vegetable oils have been studied in only a handful of studies at the experimental level. However, the efficacy of antitumoral therapy using doxorubicin (Dox) in combination with ALA and ALA-rich substrates has not yet been investigated. In this work, the antitumor activity of LO in a wide dose range was studied with monotherapy and combined with Dox in animal models with Pliss lymphosarcoma (PLS) and Lewis lung adenocarcinoma (LLC). It was founded the daily oral administration of LO (1, 3, and 10 ml per 1 kg) to rats (PLS) and 6 ml/kg to mice (LLC) for 11–12 days from 7 days after subcutaneous transplantation of tumors has a stable statistically significant effect on the dynamics of tumor growth, reducing the intensity of tumor growth and increasing the frequency of complete tumor regressions (CR) compared with the control. LO showed high antimetastatic activity in the LLC model. Furthermore, LO at a dose of 3 ml/kg potentiates the antitumor effect of Dox in the PLS model, reducing the volume of tumors at the end of treatment by 2.0 times (p = 0.013), the value of the tumor growth index by 1.6 times (p < 0.03) and increasing the frequency of CR 60 days after the start of therapy by 3.5 times (p = 0.019) compared with the use of Dox alone. The combination of Dox and LO or fish oil allows growing efficiency therapy of LLC in comparison with Dox alone, increasing the frequency of CR to 73.68% and 94.4%, respectively, and reducing the frequency of metastasis to zero.
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Affiliation(s)
- Oleg Shadyro
- Laboratory of Chemistry of Free-Radical Processes, Research Institute for Physical and Chemical Problems, Belarusian State University, Minsk, Belarus
- Department of Chemistry, Belarusian State University, Minsk, Belarus
- *Correspondence: Oleg Shadyro,
| | - Anna Sosnovskaya
- Laboratory of Chemistry of Free-Radical Processes, Research Institute for Physical and Chemical Problems, Belarusian State University, Minsk, Belarus
| | - Irina Edimecheva
- Laboratory of Chemistry of Free-Radical Processes, Research Institute for Physical and Chemical Problems, Belarusian State University, Minsk, Belarus
| | - Lana Ihnatovich
- Laboratory of Chemistry of Free-Radical Processes, Research Institute for Physical and Chemical Problems, Belarusian State University, Minsk, Belarus
- Department of Chemistry, Belarusian State University, Minsk, Belarus
| | - Boris Dubovik
- Department of Pharmacology, Belarusian State Medical University, Minsk, Belarus
| | - Sergei Krasny
- Laboratory of Photodynamic Therapy and Hyperthermia, N.N. Alexandrov National Cancer Center, Lesnoy, Belarus
| | - Dmitry Tzerkovsky
- Laboratory of Photodynamic Therapy and Hyperthermia, N.N. Alexandrov National Cancer Center, Lesnoy, Belarus
| | - Egor Protopovich
- Laboratory of Photodynamic Therapy and Hyperthermia, N.N. Alexandrov National Cancer Center, Lesnoy, Belarus
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α-Linolenic Acid Suppresses Proliferation and Invasion in Osteosarcoma Cells via Inhibiting Fatty Acid Synthase. Molecules 2022; 27:molecules27092741. [PMID: 35566090 PMCID: PMC9105512 DOI: 10.3390/molecules27092741] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 12/26/2022] Open
Abstract
Fatty acid synthase (FASN) is highly expressed in multiple types of human cancers and is recognized as one of the targets for treating cancer metastasis. α-Linolenic acid is an omega-3 essential fatty acid and it possesses various biological activities. The present study was designed to reveal the effects of α-linolenic acid on osteosarcoma and to reveal whether the mechanism of α-linolenic acid in anticancer activity may be related to FASN inhibition. The cytotoxicity of α-linolenic acid was assessed in osteosarcoma MG63, 143B, and U2OS cells. Cell viability was detected by the MTT assay. The protein expression level was detected by western blotting. Flow cytometry, Annexin V/propidium iodide dual staining, and Hoechst 33258 staining were performed to assess the apoptotic effects. Wound healing assay was applied to detect the inhibitory effect of α-linolenic acid on osteosarcoma cells migration. The results showed that α-linolenic acid downregulated FASN expression. α-Linolenic acid inhibited osteosarcoma cell proliferation and migration in a dose-dependent manner. In addition, α-linolenic acid regulated endoplasmic reticulum transmembrane receptors and signal protein expression in osteosarcoma cells. The findings of the present study suggested that α-linolenic acid suppresses osteosarcoma cell proliferation and metastasis by inhibiting FASN expression, which provides a basis as a potential target for osteosarcoma treatment.
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Martín Ortega AM, Carrillo Cocom LM, Segura Campos MR. Salvia hispanica L. Seed Oil: Effect on Cell Viability in Colon Cancer Line Caco2 and Breast Cancer Line MCF7. J Med Food 2022; 25:529-533. [PMID: 35333621 DOI: 10.1089/jmf.2021.0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the main causes of mortality and morbidity worldwide, which does not have a fully effective medical treatment. Therefore, the objective of this study was to evaluate the effect of lipidically characterized and hydrolyzed chia seed (Salvia hispanica L.) oil on in vitro colon cancer (Caco2 cell line) and breast cancer cells (MCF7 cell line) cell viability. Cancer cells were treated with different hydrolyzed oil concentrations (12.5-400 μg/mL) for 48 h; then cell viability was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay. All chia seed oil concentrations significantly reduced cell viability in the Caco2 line, with the best reduction being 23.88% with the 25 μg/mL concentration. However, in the breast cancer line the highest concentrations (200 and 400 μg/mL) increased the viability of malignant cells. Chia seed oil significantly reduces the viability of Caco2 cells, although at the higher concentrations it can increase the viability of breast cancer cells.
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Xu MQ, Hao YL, Wang JR, Li ZY, Li H, Feng ZH, Wang H, Wang JW, Zhang X. Antitumor Activity of α-Linolenic Acid-Paclitaxel Conjugate Nanoparticles: In vitro and in vivo. Int J Nanomedicine 2021; 16:7269-7281. [PMID: 34737564 PMCID: PMC8558831 DOI: 10.2147/ijn.s331578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/08/2021] [Indexed: 12/19/2022] Open
Abstract
Purpose Small molecule modified antitumor drug conjugate nanoparticles have the advantages of high drug loading, simple synthesis and preparation, and better biocompatibility. Due to the large demand for exogenous α-linolenic acid (ALA) by tumor cells, we synthesized α-linolenic acid-paclitaxel conjugate (ALA-PTX) and prepared α-linolenic acid-paclitaxel conjugate nanoparticles (ALA-PTX NPs), in order to obtain better tumor cellular uptake and antitumor activity in vitro and in vivo. Methods We synthesized and characterized ALA-PTX, and then prepared and characterized ALA-PTX NPs. The cellular uptake, uptake pathways, intracellular behavior, in vitro and in vivo antitumor activity of ALA-PTX NPs were evaluated. Results The size of ALA-PTX NPs was approximately 110.7±1.7 nm. The drug loading was approximately 90% (w/w) with CrEL-free and organic solvent-free characteristics. The cellular uptake of ALA-PTX NPs was significantly higher than that of PTX injection by MCF-7, MCF-7/ADR and HepG2 cells. In these three cell lines, the cellular uptake of ALA-PTX NPs at 6h was approximately 1.5-2.6 times higher than that of PTX injection. ALA-PTX NPs were ingested through clathrin-mediated endocytosis, then transferred to lysosomes, and could dissolve in cells to play an antitumor activity. The in vitro and in vivo antitumor activity of ALA-PTX NPs was confirmed in MCF-7/ADR and HepG2 cell models and tumor-bearing nude mouse models. Conclusion ALA-PTX NPs developed in our study could provide a new method for the preparation of nano-delivery systems suitable for antitumor therapy that could increase tumor cellular uptake and enhance antitumor activity.
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Affiliation(s)
- Mei-Qi Xu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Yan-Li Hao
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Jing-Ru Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Zhuo-Yue Li
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Hui Li
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Zhen-Han Feng
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Hui Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Jing-Wen Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Xuan Zhang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
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11
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Antimicrobial Properties, Cytotoxic Effects, and Fatty Acids Composition of Vegetable Oils from Purslane, Linseed, Luffa, and Pumpkin Seeds. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11125738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the present study, the antimicrobial and cytotoxic activities, as well as the fatty acids composition in vegetable seed oils from linseed, purslane, luffa, and pumpkin were evaluated. For this purpose, two linseed oils and one luffa oil were commercially obtained, while purslane and pumpkin oils were obtained from own cultivated seeds. The results showed a variable fatty acids composition among the tested oils, with α-linolenic, linoleic, oleic, palmitic, and stearic acid being the most abundant compounds. In regards to particular oils, linseed oils were a rich source of α-linolenic acid, luffa and pumpkin oil were abundant in linoleic acid, while purslane oil presented a balanced composition with an almost similar amount of both fatty acids. Luffa oil was the most effective against two of the tested cancer cell lines, namely HeLa (cervical carcinoma) and NCI-H460 (non-small cell lung cancer), while it also showed moderate toxicity against non-tumor cells (PLP2 cell line). Regarding the antibacterial activity, linseed oil 3 and pumpkin oil showed the highest activity against most of the tested bacteria (especially against Enterobacter cloacae and Escherichia coli) with MIC and MBC values similar to the used positive controls (E211 and E224). All the tested oils showed significant antifungal activities, especially luffa and pumpkin oil, and for most of the tested fungi they were more effective than the positive controls, as for example in the case of Aspergillus versicolor, A. niger, and Penicillium verrucosum var. cyclopium. In conclusion, the results of our study showed promising antimicrobial and cytotoxic properties for the studied seed oils which could be partly attributed to their fatty acids composition, especially the long-chain ones with 12–18 carbons.
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Khan A, Siddiqui S, Husain SA, Mazurek S, Iqbal MA. Phytocompounds Targeting Metabolic Reprogramming in Cancer: An Assessment of Role, Mechanisms, Pathways, and Therapeutic Relevance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6897-6928. [PMID: 34133161 DOI: 10.1021/acs.jafc.1c01173] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The metabolism of cancer is remarkably different from that of normal cells and confers a variety of benefits, including the promotion of other cancer hallmarks. As the rewired metabolism is a near-universal property of cancer cells, efforts are underway to exploit metabolic vulnerabilities for therapeutic benefits. In the continued search for safer and effective ways of cancer treatment, structurally diverse plant-based compounds have gained substantial attention. Here, we present an extensive assessment of the role of phytocompounds in modulating cancer metabolism and attempt to make a case for the use of plant-based compounds in targeting metabolic vulnerabilities of cancer. We discuss the pharmacological interactions of phytocompounds with major metabolic pathways and evaluate the role of phytocompounds in the regulation of growth signaling and transcriptional programs involved in the metabolic transformation of cancer. Lastly, we examine the potential of these compounds in the clinical management of cancer along with limitations and challenges.
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Affiliation(s)
- Asifa Khan
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Shumaila Siddiqui
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Syed Akhtar Husain
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Sybille Mazurek
- Institute of Veterinary-Physiology and Biochemistry, University of Giessen, Giessen 35392, Germany
| | - Mohammad Askandar Iqbal
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
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13
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Story MJ. Zinc, ω-3 polyunsaturated fatty acids and vitamin D: An essential combination for prevention and treatment of cancers. Biochimie 2020; 181:100-122. [PMID: 33307154 DOI: 10.1016/j.biochi.2020.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 11/14/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
Zinc, ω-3 polyunsaturated fatty acids (PUFAs) and vitamin D are essential nutrients for health, maturation and general wellbeing. Extensive literature searches have revealed the widespread similarity in molecular biological properties of zinc, ω-3 PUFAs and vitamin D, and their similar anti-cancer properties, even though they have different modes of action. These three nutrients are separately essential for good health, especially in the aged. Zinc, ω-3 PUFAs and vitamin D are inexpensive and safe as they are fundamentally natural and have the properties of correcting and inhibiting undesirable actions without disturbing the normal functions of cells or their extracellular environment. This review of the anticancer properties of zinc, ω-3 PUFAs and vitamin D is made in the context of the hallmarks of cancer. The anticancer properties of zinc, ω-3 PUFAs and vitamin D can therefore be used beneficially through combined treatment or supplementation. It is proposed that sufficiency of zinc, ω-3 PUFAs and vitamin D is a necessary requirement during chemotherapy treatment and that clinical trials can have questionable integrity if this sufficiency is not checked and maintained during efficacy trials.
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Affiliation(s)
- Michael J Story
- Story Pharmaceutics Pty Ltd, PO Box 6086, Linden Park, South Australia, 5065, Australia.
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14
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Gutierrez-Pajares JL, Ben Hassen C, Oger C, Galano JM, Durand T, Frank PG. Oxidized Products of α-Linolenic Acid Negatively Regulate Cellular Survival and Motility of Breast Cancer Cells. Biomolecules 2019; 10:biom10010050. [PMID: 31905626 PMCID: PMC7023043 DOI: 10.3390/biom10010050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 12/09/2022] Open
Abstract
Despite recent advances in our understanding of the biological processes leading to the development and progression of cancer, there is still a need for new and effective agents to treat this disease. Phytoprostanes (PhytoPs) and phytofurans (PhytoFs) are non-enzymatically oxidized products of α-linolenic acid that are present in seeds and vegetable oils. They have been shown to possess anti-inflammatory and apoptosis-promoting activities in macrophages and leukemia cells, respectively. In this work, seven PhytoPs (PP1–PP7) and one PhytoFs (PF1) were evaluated for their cytotoxic, chemosensitization, and anti-migratory activities using the MCF-7 and MDA-MB-231 breast cancer cell lines. Among the tested compounds, only three PhytoPs had a significant effect on cell viability compared to the control group: Ent-9-L1-PhytoP (PP6) decreased cell viability in both cell lines, while 16-F1t-PhytoP (PP1) and 9-L1-PhytoP (PP5) decreased viability of MCF-7 and MDA-MB-231 cells, respectively. When combined with a sub-cytotoxic dose of doxorubicin, these three PhytoPs displayed significantly enhanced cytotoxic effects on MCF-7 cells while the chemotherapeutic drug alone had no effect. In cellular motility assays, Ent-9-(RS)-12-epi-ST-Δ10-13-PhytoF could significantly inhibit cellular migration of MDA-MB-231 cells. In addition, Ent-9-(RS)-12-epi-ST-Δ10-13-PhytoF also enhanced cellular adhesion of MDA-MB-231 cells.
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Affiliation(s)
| | - Celine Ben Hassen
- INSERM, Faculté de Médecine, Université de Tours, UMR1069 Tours, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Philippe G Frank
- INSERM, Faculté de Médecine, Université de Tours, UMR1069 Tours, France
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15
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Campos JR, Severino P, Ferreira CS, Zielinska A, Santini A, Souto SB, Souto EB. Linseed Essential Oil - Source of Lipids as Active Ingredients for Pharmaceuticals and Nutraceuticals. Curr Med Chem 2019; 26:4537-4558. [PMID: 30378485 DOI: 10.2174/0929867325666181031105603] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/19/2018] [Accepted: 07/22/2018] [Indexed: 12/24/2022]
Abstract
Linseed - also known as flaxseed - is known for its beneficial effects on animal health attributed to its composition. Linseed comprises linoleic and α-linolenic fatty acids, various dietary fibers and lignans, which are beneficial to health because they reduce the risk of cardiovascular diseases, as well as cancer, decreasing the levels of cholesterol and relaxing the smooth muscle cells in arteries increasing the blood flow. Essential fatty acids from flax participate in several metabolic processes of the cell, not only as structuring components of the cell membrane but also as storage lipids. Flax, being considered a functional food, can be consumed in a variety of ways, including seeds, oil or flour, contributing to basic nutrition. Several formulations containing flax are available on the market in the form of e.g. capsules and microencapsulated powders having potential as nutraceuticals. This paper revises the different lipid classes found in flaxseeds and their genomics. It also discusses the beneficial effects of flax and flaxseed oil and their biological advantages as ingredients in pharmaceuticals and in nutraceuticals products.
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Affiliation(s)
- Joana R Campos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Patricia Severino
- Biotechnology Industrial Program, Laboratory of Nanotechnology and Nanomedicine (LNMed), University of Tiradentes, Av. Murilo Dantas, 300, 49010-390 Aracaju, Sergipe, Brazil.,Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Sergipe, Brazil
| | - Classius S Ferreira
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of Sao Paulo, Diadema, Brazil
| | - Aleksandra Zielinska
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Antonello Santini
- Department of Pharmacy, Universita degli Studi di Napoli Federico II, Italy
| | - Selma B Souto
- Department of Endocrinology, Braga Hospital, Sete Fontes, 4710-243 Sao Victor Braga, Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.,CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
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16
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Deshpande R, Raina P, Shinde K, Mansara P, Karandikar M, Kaul-Ghanekar R. Flax seed oil reduced tumor growth, modulated immune responses and decreased HPV E6 and E7 oncoprotein expression in a murine model of ectopic cervical cancer. Prostaglandins Other Lipid Mediat 2019; 143:106332. [DOI: 10.1016/j.prostaglandins.2019.04.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 03/29/2019] [Accepted: 04/04/2019] [Indexed: 12/18/2022]
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17
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De Silva SF, Alcorn J. Flaxseed Lignans as Important Dietary Polyphenols for Cancer Prevention and Treatment: Chemistry, Pharmacokinetics, and Molecular Targets. Pharmaceuticals (Basel) 2019; 12:E68. [PMID: 31060335 PMCID: PMC6630319 DOI: 10.3390/ph12020068] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023] Open
Abstract
Cancer causes considerable morbidity and mortality across the world. Socioeconomic, environmental, and lifestyle factors contribute to the increasing cancer prevalence, bespeaking a need for effective prevention and treatment strategies. Phytochemicals like plant polyphenols are generally considered to have anticancer, anti-inflammatory, antiviral, antimicrobial, and immunomodulatory effects, which explain their promotion for human health. The past several decades have contributed to a growing evidence base in the literature that demonstrate ability of polyphenols to modulate multiple targets of carcinogenesis linking models of cancer characteristics (i.e., hallmarks and nutraceutical-based targeting of cancer) via direct or indirect interaction or modulation of cellular and molecular targets. This evidence is particularly relevant for the lignans, an ubiquitous, important class of dietary polyphenols present in high levels in food sources such as flaxseed. Literature evidence on lignans suggests potential benefit in cancer prevention and treatment. This review summarizes the relevant chemical and pharmacokinetic properties of dietary polyphenols and specifically focuses on the biological targets of flaxseed lignans. The consolidation of the considerable body of data on the diverse targets of the lignans will aid continued research into their potential for use in combination with other cancer chemotherapies, utilizing flaxseed lignan-enriched natural products.
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Affiliation(s)
- S Franklyn De Silva
- Drug Discovery & Development Research Group, College of Pharmacy and Nutrition, 104 Clinic Place, Health Sciences Building, University of Saskatchewan, Saskatoon, Saskatchewan (SK), S7N 2Z4, Canada.
| | - Jane Alcorn
- Drug Discovery & Development Research Group, College of Pharmacy and Nutrition, 104 Clinic Place, Health Sciences Building, University of Saskatchewan, Saskatoon, Saskatchewan (SK), S7N 2Z4, Canada.
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Lin Y, Ge J, Zhang Y, Ling H, Yan X, Ping W. Monoraphidium sp. HDMA-20 is a new potential source of α-linolenic acid and eicosatetraenoic acid. Lipids Health Dis 2019; 18:56. [PMID: 30832728 PMCID: PMC6399880 DOI: 10.1186/s12944-019-0996-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 02/19/2019] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND ω-3 polyunsaturated fatty acids (PUFAs) are synthesized from α-Linolenic acid (ALA, C18:3ω3) and play important roles in anti-inflammatory and antioxidant responses in mammal cells. ALA is an essential fatty acid which cannot be produced within the human body and must be acquired through diet. The purpose of this study was to evaluate the potential of a novel microalgal strain (HDMA-20) as a source of ω-3 PUFAs including ALA and eicosatetraenoic acid (ETA, C20:4ω3). METHOD Phylogenetic Neighbor-Joining analysis based on 18S ribosomal DNA sequence was used to identify the microalga strain HDMA-20. Autotrophic condition was chosen to cultivate HDMA-20 to reduce the cultivation cost. GC-MS was used to determine the fatty acid composition of HDMA-20 lipid. RESULTS A microalgal strain (HDMA-20) from Lake Chengfeng (Daqing, Heilongjiang province, China) was found to accumulate high content of ω-3 PUFAs (63.4% of total lipid), with ALA and eicosatetraenoic acid (ETA, C20:4ω3) accounting for 35.4 and 9.6% of total lipid, respectively. Phylogenetic analysis based on 18S ribosomal DNA sequences suggested that the HDMA-20 belonged to genus Monoraphidium (Selenastraceae, Sphaeropleales) and its 18S rDNA sequence information turned out to be new molecular record of Monoraphidium species. The biomass productivity and lipid content of HDMA-20 were also investigated under autotrophic condition. The biomass productivity of HDMA-20 reached 36.3 mg L- 1 day- 1, and the lipid contents was 22.6% of dry weight. CONCLUSION HDMA-20 not only represent an additional source of ALA, but also a totally new source of ETA. The high content of ω-3 PUFAs, especially ALA, of HDMA-20, makes it suitable as a source of nutrition supplements for human health. In addition, HDMA-20 exhibited good properties in growth and lipid accumulation, implying its potential for cost-effective ω-3 PUFAs production in future.
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Affiliation(s)
- Yimeng Lin
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, People's Republic of China.,Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, People's Republic of China.,Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, People's Republic of China
| | - Jingping Ge
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, People's Republic of China.,Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, People's Republic of China
| | - Yunye Zhang
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, People's Republic of China
| | - Hongzhi Ling
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, People's Republic of China.,Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, People's Republic of China
| | - Xiufeng Yan
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, People's Republic of China
| | - Wenxiang Ping
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, People's Republic of China. .,Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, People's Republic of China.
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19
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Lin Y, Ge J, Ling H, Zhang Y, Yan X, Ping W. Isolation of a novel strain of Monoraphidium sp. and characterization of its potential for α-linolenic acid and biodiesel production. BIORESOURCE TECHNOLOGY 2018; 267:466-472. [PMID: 30036847 DOI: 10.1016/j.biortech.2018.07.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
α-Linolenic acid (ALA) is an essential fatty acid which cannot be synthesized de novo in mammals and must be ingested regularly in the diet. In this study, a microalgal strain named HDMA-11 was isolated from Lake Ming, China, and was found to accumulate a high ALA content (39.2% of total lipids). Phylogenetic neighbor-joining analysis indicated that HDMA-11 belongs to the genus Monoraphidium (Selenastraceae, Sphaeropleales) and its 18S ribosomal DNA sequence seemed to be a new molecular record of a Monoraphidium species. The fatty acid profiles, biomass productivity and lipid content of HDMA-11 were also investigated in autotrophic conditions. The high levels of polyunsaturated fatty acids in HDMA-11, especially ALA, make it suitable as a source of nutritional supplementation for human health. Furthermore, HDMA-11 exhibited good properties for biodiesel production, characterized by high lipid content (28.5% of dry weight), moderate biomass productivity (31.5 mg L-1 day-1) and a promising lipid profile.
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Affiliation(s)
- Yimeng Lin
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, PR China; Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, PR China; Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, PR China
| | - Jingping Ge
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, PR China; Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, PR China
| | - Hongzhi Ling
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, PR China; Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, PR China
| | - Yunye Zhang
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, PR China
| | - Xiufeng Yan
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, PR China
| | - Wenxiang Ping
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, PR China; Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, PR China.
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20
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McCarty MF, DiNicolantonio JJ. Minimizing Membrane Arachidonic Acid Content as a Strategy for Controlling Cancer: A Review. Nutr Cancer 2018; 70:840-850. [DOI: 10.1080/01635581.2018.1470657] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - James J. DiNicolantonio
- Preventive Cardiology Department, St. Luke’s Mid America Heart Institute, Kansas City, Missouri, USA
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21
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Ciocci M, Iorio E, Carotenuto F, Khashoggi HA, Nanni F, Melino S. H2S-releasing nanoemulsions: a new formulation to inhibit tumor cells proliferation and improve tissue repair. Oncotarget 2018; 7:84338-84358. [PMID: 27741519 PMCID: PMC5356665 DOI: 10.18632/oncotarget.12609] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/07/2016] [Indexed: 12/16/2022] Open
Abstract
The improvement of solubility and/or dissolution rate of poorly soluble natural compounds is an ideal strategy to make them optimal candidates as new potential drugs. Accordingly, the allyl sulfur compounds and omega-3 fatty acids are natural hydrophobic compounds that exhibit two important combined properties: cardiovascular protection and antitumor activity. Here, we have synthesized and characterized a novel formulation of diallyl disulfide (DADS) and α-linolenic acid (ALA) as protein-nanoemulsions (BAD-NEs), using ultrasounds. BAD-NEs are stable over time at room temperature and show antioxidant and radical scavenging property. These NEs are also optimal H2S slow-release donors and show a significant anti-proliferative effect on different human cancer cell lines: MCF-7 breast cancer and HuT 78 T-cell lymphoma cells. BAD-NEs are able to regulate the ERK1/2 pathway, inducing apoptosis and cell cycle arrest at the G0/G1 phase. We have also investigated their effect on cell proliferation of human adult stem/progenitor cells. Interestingly, BAD-NEs are able to improve the Lin- Sca1+ human cardiac progenitor cells (hCPC) proliferation. This stem cell growth stimulation is combined with the expression and activation of proteins involved in tissue-repair, such as P-AKT, α-sma and connexin 43. Altogether, our results suggest that these antioxidant nanoemulsions might have potential application in selective cancer therapy and for promoting the muscle tissue repair.
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Affiliation(s)
- Matteo Ciocci
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Egidio Iorio
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - Felicia Carotenuto
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Haneen A Khashoggi
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Francesca Nanni
- Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Sonia Melino
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
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Calado A, Neves PM, Santos T, Ravasco P. The Effect of Flaxseed in Breast Cancer: A Literature Review. Front Nutr 2018; 5:4. [PMID: 29468163 PMCID: PMC5808339 DOI: 10.3389/fnut.2018.00004] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 01/16/2018] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is one of the most common cancers and the second most responsible for cancer mortality worldwide. In 2014, in Portugal approximately 27,200 people died of cancer, of which 1,791 were women with breast cancer. Flaxseed has been one of the most studied foods, regarding possible relations to breast cancer, though mainly in experimental studies in animals, yet in few clinical trials. It is rich in omega-3 fatty acids, α-linolenic acid, lignan, and fibers. One of the main components of flaxseed is the lignans, of which 95% are made of the predominant secoisolariciresinol diglucoside (SDG). SDG is converted into enterolactone and enterodiol, both with antiestrogen activity and structurally similar to estrogen; they can bind to cell receptors, decreasing cell growth. Some studies have shown that the intake of omega-3 fatty acids is related to the reduction of breast cancer risk. In animal studies, α-linolenic acids have been shown to be able to suppress growth, size, and proliferation of cancer cells and also to promote breast cancer cell death. Other animal studies found that the intake of flaxseed combined with tamoxifen can reduce tumor size to a greater extent than taking tamoxifen alone. Additionally, some clinical trials showed that flaxseed can have an important role in decreasing breast cancer risk, mainly in postmenopausal women. Further studies are needed, specifically clinical trials that may demonstrate the potential benefits of flaxseed in breast cancer.
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Affiliation(s)
- Ana Calado
- Instituto de Ciências da Saúde, Universidade Católica Portuguesa, Lisbon, Portugal
| | - Pedro Miguel Neves
- Faculdade de Medicina da Universidade de Lisboa, Hospital Universitário de Santa Maria and Centro de Investigação Interdisciplinar em Saúde da Universidade Católica Portuguesa, Lisbon, Portugal
| | - Teresa Santos
- Faculdade de Motricidade Humana (FMH) (Projecto Aventura Social-Social Adventure Team), Universidade de Lisboa, Lisbon, Portugal.,Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,William James Center for Research, ISPA--Instituto Universitário, Lisbon, Portugal
| | - Paula Ravasco
- Faculdade de Medicina da Universidade de Lisboa, Hospital Universitário de Santa Maria and Centro de Investigação Interdisciplinar em Saúde da Universidade Católica Portuguesa, Lisbon, Portugal
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Omega-3 Polyunsaturated Fatty Acids Time-Dependently Reduce Cell Viability and Oncogenic MicroRNA-21 Expression in Estrogen Receptor-Positive Breast Cancer Cells (MCF-7). Int J Mol Sci 2018; 19:ijms19010244. [PMID: 29342901 PMCID: PMC5796192 DOI: 10.3390/ijms19010244] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/12/2017] [Accepted: 01/11/2018] [Indexed: 12/29/2022] Open
Abstract
The omega-3 polyunsaturated fatty acid (n-3 PUFA), α-linolenic acid (ALA), and its metabolites, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), independently reduce the growth of breast cancer cells in vitro, but the mechanisms, which may involve microRNA (miRNA), are still unclear. The expression of the oncomiR, miR-21, is reduced by DHA treatment, but the effects of ALA on miR-21, alone or combined with EPA and DHA under physiologically relevant concentrations, have not been investigated. The effects of ALA alone and +/-EPA and DHA at the blood molar ratios seen in either humans (1.0:1.0:2.5, ALA:EPA:DHA) or mice (1.0:0.4:3.1, ALA:EPA:DHA) post flaxseed oil consumption (containing ALA) were assessed in vitro in MCF-7 breast cancer cells. Cell viability and the expression of miR-21 and its molecular target, phosphatase and tension homolog (PTEN, gene and protein), at different time points, were examined. At 1, 3, 48 and 96 h ALA alone and 24 h animal ratio treatments significantly reduced MCF-7 cell viability, while 1 and 3 h ALA alone and human and animal ratio treatments all significantly reduced miR-21 expression, and 24 h animal ratio treatment reduced miR-21 expression; these effects were not associated with changes in PTEN gene or protein expressions. We showed for the first time that ALA alone or combined with EPA and DHA at levels seen in human and animal blood post-ALA consumption can significantly reduce cell viability and modulate miR-21 expression in a time- and concentration-dependent manner, with the animal ratio containing higher DHA having a greater effect. The time dependency of miR-21 effects suggests the significance of considering time as a variable in miRNA studies, particularly of miR-21.
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Anticancer potentiality of lignan rich fraction of six Flaxseed cultivars. Sci Rep 2018; 8:544. [PMID: 29323210 PMCID: PMC5764973 DOI: 10.1038/s41598-017-18944-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 12/19/2017] [Indexed: 12/25/2022] Open
Abstract
The objective of our study is to highlight the therapeutic effect and mechanism of action by which purified Flaxseed hydrolysate (PFH) which is a lignan rich fraction exerts its anticancer activity on a human breast cancer cell line (T47D) and in mice bearing tumor. HPLC analysis of PFH of six flaxseed cultivars had shown that PFH of the cultivar Giza 9 (PFH-G9) contains the highest concentration of SDG (81.64 mg/g). The in vitro cytotoxic potentiality of PFH’s of six flaxseed cultivars was screened against a panel of human cancer cell lines. PFH -G9 showed the most significant cytotoxic activity against ER-receptor positive breast cell lines MCF7 and T47D with IC50 13.8 and 15.8 µg/ml, respectively. Moreover, PFH-G9 reduced the expression of the metastasis marker, 1-α, metalloproteinases and vascular endothelial growth factor (VEGF), one of the most potent stimulators of angiogenesis, while it increased the caspase-3 dependent apoptosis. Our study also showed that dietary intake of 10% of Giza 9 Flaxseeds (FS), fixed oil (FSO) or Flax meal (FSM) twice daily for 3 weeks in mice-bearing solid Ehrlich ascites carcinoma (EAC) resulted in reducing the tumor volume, the expression of estrogen, insulin growth factor, progesterone, VEGF and MMP-2, but enhanced expression of caspase-3.
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Liu J, Abdelmagid SA, Pinelli CJ, Monk JM, Liddle DM, Hillyer LM, Hucik B, Silva A, Subedi S, Wood GA, Robinson LE, Muller WJ, Ma DWL. Marine fish oil is more potent than plant-based n-3 polyunsaturated fatty acids in the prevention of mammary tumors. J Nutr Biochem 2017; 55:41-52. [PMID: 29413488 DOI: 10.1016/j.jnutbio.2017.12.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 12/24/2022]
Abstract
Marine-derived n-3 polyunsaturated fatty acids (PUFAs), such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have been shown to inhibit mammary carcinogenesis. However, evidence regarding plant-based α-linolenic acid (ALA), the major n-3 PUFA in the Western diet, remains equivocal. The objective of this study was to examine the effect of lifelong exposure to plant- or marine-derived n-3 PUFAs on pubertal mammary gland and tumor development in MMTV-neu(ndl)-YD5 mice. It is hypothesized that lifelong exposure to n-3 PUFA reduces terminal end buds during puberty leading to delayed tumor onset, volume and multiplicity. It is further hypothesized that plant-derived n-3 PUFAs will exert dose-dependent effects. Harems of MMTV-FVB males were bred with wild-type females and fed either a (1) 10% safflower (10% SF, n-6 PUFA, control), (2) 10% flaxseed (10% FS), (3) 7% safflower plus 3% flaxseed (3% FS) or (4) 7% safflower plus 3% menhaden (3% FO) diet. Female offspring were maintained on parental diets. Compared to SF, 10% FS and 3% FO reduced (P<.05) terminal end buds at 6 weeks and tumor volume and multiplicity at 20 weeks. A dose-dependent reduction of tumor volume and multiplicity was observed in mice fed 3% and 10% FS. Antitumorigenic effects were associated with altered HER2, pHER-2, pAkt and Ki-67 protein expression. Compared to 10% SF, 3% FO significantly down-regulated expression of genes involved in eicosanoid synthesis and inflammation. From this, it can be estimated that ALA was 1/8 as potent as EPA+DHA. Thus, marine-derived n-3 PUFAs have greater potency versus plant-based n-3 PUFAs.
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Affiliation(s)
- Jiajie Liu
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - Salma A Abdelmagid
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | | | - Jennifer M Monk
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - Danyelle M Liddle
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - Lyn M Hillyer
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - Barbora Hucik
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - Anjali Silva
- Department of Mathematics and Statistics, University of Guelph, ON, Canada
| | - Sanjeena Subedi
- Department of Mathematics and Statistics, University of Guelph, ON, Canada
| | - Geoffrey A Wood
- Department of Pathobiology, University of Guelph, ON, Canada
| | - Lindsay E Robinson
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada
| | - William J Muller
- Department of Biochemistry, McGill University, Rosalind and Morris Goodman Cancer Research, Montreal, QC, Canada
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, ON, Canada.
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Zanoaga O, Jurj A, Raduly L, Cojocneanu-Petric R, Fuentes-Mattei E, Wu O, Braicu C, Gherman CD, Berindan-Neagoe I. Implications of dietary ω-3 and ω-6 polyunsaturated fatty acids in breast cancer. Exp Ther Med 2017; 15:1167-1176. [PMID: 29434704 PMCID: PMC5776638 DOI: 10.3892/etm.2017.5515] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/20/2017] [Indexed: 12/20/2022] Open
Abstract
Breast cancer represents one of the most common forms of cancer in women worldwide, with an increase in the number of newly diagnosed patients in the last decade. The role of fatty acids, particularly of a diet rich in ω-3 and ω-6 polyunsaturated fatty acids (PUFAs), in breast cancer development is not fully understood and remains controversial due to their complex mechanism of action. However, a large number of animal models and cell culture studies have demonstrated that high levels of ω-3 PUFAs have an inhibitory role in the development and progression of breast cancer, compared to ω-6 PUFAs. The present review focused on recent studies regarding the correlation between dietary PUFAs and breast cancer development, and aimed to emphasize the main molecular mechanisms involved in the modification of cell membrane structure and function, modulation of signal transduction pathways, gene expression regulation, and antiangiogenic and antimetastatic effects. Furthermore, the anticancer role of ω-3 PUFAs through the modulation of microRNA expression levels was also reviewed.
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Affiliation(s)
- Oana Zanoaga
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Ancuta Jurj
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Lajos Raduly
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.,Department of Physiopathology, University of Agricultural Science and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Roxana Cojocneanu-Petric
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Enrique Fuentes-Mattei
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Oscar Wu
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.,Texas Tech University Honors College, McClellan Hall, Lubbock, TX 79409, USA
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Claudia Diana Gherman
- Surgical Clinic II Hospital, 400006 Cluj-Napoca, Romania.,Department of Surgery, Iuliu Haţieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.,MEDFUTURE-Research Center for Advanced Medicine, University of Medicine and Pharmacy Iuliu-Hatieganu, 400349 Cluj-Napoca, Romania.,Department of Functional Genomics, Proteomics and Experimental Pathology, Prof Dr Ion Chiricuta Oncology Institute, 400015 Cluj-Napoca, Romania
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Phytotherapy and Nutritional Supplements on Breast Cancer. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7207983. [PMID: 28845434 PMCID: PMC5563402 DOI: 10.1155/2017/7207983] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/14/2017] [Accepted: 06/18/2017] [Indexed: 02/07/2023]
Abstract
Breast cancer is the most frequent type of nonskin malignancy among women worldwide. In general, conventional cancer treatment options (i.e., surgery, radiotherapy, chemotherapy, biological therapy, and hormone therapy) are not completely effective. Recurrence and other pathologic situations are still an issue in breast cancer patients due to side effects, toxicity of drugs in normal cells, and aggressive behaviour of the tumours. From this point of view, breast cancer therapy and adjuvant methods represent a promising and challenging field for researchers. In the last few years, the use of some types of complementary medicines by women with a history of breast cancer has significantly increased such as phytotherapeutic products and nutritional supplements. Despite this, the use of such approaches in oncologic processes may be problematic and patient's health risks can arise such as interference with the efficacy of standard cancer treatment. The present review gives an overview of the most usual phytotherapeutic products and nutritional supplements with application in breast cancer patients as adjuvant approach. Regardless of the contradictory results of scientific evidence, we demonstrated the need to perform additional investigation, mainly well-designed clinical trials in order to establish correlations and allow for further validated outcomes concerning the efficacy, safety, and clinical evidence-based recommendation of these products.
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Mason-Ennis JK, LeMay-Nedjelski LP, Wiggins AK, Thompson LU. Exploration of mechanisms of α-linolenic acid in reducing the growth of oestrogen receptor positive breast cancer cells (MCF-7). J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.04.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Differential Response of Two Human Breast Cancer Cell Lines to the Phenolic Extract from Flaxseed Oil. Molecules 2016; 21:319. [PMID: 27005599 PMCID: PMC6274312 DOI: 10.3390/molecules21030319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/26/2016] [Accepted: 03/02/2016] [Indexed: 12/16/2022] Open
Abstract
Many studies have evidenced that the phenolic components from flaxseed (FS) oil have potential health benefits. The effect of the phenolic extract from FS oil has been evaluated on two human breast cancer cell lines, MCF7 and MDA-MB231, and on the human non-cancerous breast cell line, MCF10A, by SRB assay, cellular death, cell cycle, cell signaling, lipid peroxidation and expression of some key genes. We have evidenced that the extract shows anti-proliferative activity on MCF7 cells by inducing cellular apoptosis, increase of the percentage of cells in G0/G1 phase and of lipid peroxidation, activation of the H2AX signaling pathway, and upregulation of a six gene signature. On the other hand, on the MDA-MB2131 cells we verified only an anti-proliferative activity, a weak lipid peroxidation, the activation of the PI3K signaling pathway and an up-regulation of four genes. Overall these data suggest that the extract has both cytotoxic and pro-oxidant effects only on MCF7 cells, and can act as a metabolic probe, inducing differences in the gene expression. For this purpose, we have performed an interactomic analysis, highlighting the existing associations. From this approach, we show that the phenotypic difference between the two cell lines can be explained through their differential response to the phenolic extract.
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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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Mason JK, Klaire S, Kharotia S, Wiggins AKA, Thompson LU. α-linolenic acid and docosahexaenoic acid, alone and combined with trastuzumab, reduce HER2-overexpressing breast cancer cell growth but differentially regulate HER2 signaling pathways. Lipids Health Dis 2015; 14:91. [PMID: 26282560 PMCID: PMC4539855 DOI: 10.1186/s12944-015-0090-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 07/31/2015] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Diets rich in the n-3 fatty acid alpha-linolenic acid (ALA) have been shown to reduce breast tumor growth, enhance the effectiveness of the HER2-targeted drug trastuzumab (TRAS) and reduce HER2 signaling in mouse models. It is unclear whether this is due to direct effects of ALA or due to its long-chain n-3 fatty acids metabolites including docosahexaenoic acid (DHA). METHODS The ability of HER2-overexpressing BT-474 human breast cancer cells to convert ALA to long-chain n-3 fatty acids was determined by measurement of phospholipid fatty acids by gas chromatography following treatment with 100 μM ALA. The effects of 96 h treatment with ALA or DHA, at serum levels seen in mice (50-100 μM), alone and combined with TRAS (10 μg/ml), on BT-474 cell growth measured by trypan blue exclusion, apoptosis measured by flow cytometric analysis of Annexin-V/7-AAD stained cells (ALA and TRAS treatment only) and protein biomarkers HER2 signaling measured by western blot were determined. RESULTS ALA-treated BT-474 cells had higher phospholipid ALA but no increase in downstream n-3 metabolites including DHA. Both ALA and DHA reduced cell growth with and without TRAS. ALA had no effect on apoptosis. ALA and DHA showed opposite effects on Akt and MAPK phosphorylation; ALA increased and DHA decreased phosphorylation. CONCLUSIONS Together these data suggest that, while both ALA and its DHA metabolite can reduce HER2-overexpressing breast cancer growth with and without TRAS, they demonstrate for the first time that DHA is responsible for the effects of ALA-rich diets on HER2 signaling pathways.
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Affiliation(s)
- Julie K Mason
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College Street, Toronto, ON, M5S 3E2, Canada.
| | - Sukhpreet Klaire
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College Street, Toronto, ON, M5S 3E2, Canada.
| | - Shikhil Kharotia
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College Street, Toronto, ON, M5S 3E2, Canada.
| | - Ashleigh K A Wiggins
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College Street, Toronto, ON, M5S 3E2, Canada.
| | - Lilian U Thompson
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College Street, Toronto, ON, M5S 3E2, Canada.
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Flax Fiber Hydrophobic Extract Inhibits Human Skin Cells Inflammation and Causes Remodeling of Extracellular Matrix and Wound Closure Activation. BIOMED RESEARCH INTERNATIONAL 2015; 2015:862391. [PMID: 26347154 PMCID: PMC4539444 DOI: 10.1155/2015/862391] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/30/2015] [Accepted: 04/10/2015] [Indexed: 12/13/2022]
Abstract
Inflammation is the basis of many diseases, with chronic wounds amongst them, limiting cell proliferation and tissue regeneration. Our previous preclinical study of flax fiber applied as a wound dressing and analysis of its components impact on the fibroblast transcriptome suggested flax fiber hydrophobic extract use as an anti-inflammatory and wound healing preparation. The extract contains cannabidiol (CBD), phytosterols, and unsaturated fatty acids, showing great promise in wound healing. In in vitro proliferation and wound closure tests the extract activated cell migration and proliferation. The activity of matrix metalloproteinases in skin cells was increased, suggesting activation of extracellular components remodeling. The expression of cytokines was diminished by the extract in a cannabidiol-dependent manner, but β-sitosterol can act synergistically with CBD in inflammation inhibition. Extracellular matrix related genes were also analyzed, considering their importance in further stages of wound healing. The extract activated skin cell matrix remodeling, but the changes were only partially cannabidiol- and β-sitosterol-dependent. The possible role of fatty acids also present in the extract is suggested. The study shows the hydrophobic flax fiber components as wound healing activators, with anti-inflammatory cannabidiol acting in synergy with sterols, and migration and proliferation promoting agents, some of which still require experimental identification.
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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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Schiessel DL, Yamazaki RK, Kryczyk M, Coelho I, Yamaguchi AA, Pequito DCT, Brito GAP, Borghetti G, Fernandes LC. α-Linolenic Fatty Acid Supplementation Decreases Tumor Growth and Cachexia Parameters in Walker 256 Tumor-Bearing Rats. Nutr Cancer 2015; 67:839-46. [DOI: 10.1080/01635581.2015.1043021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yu HM, Newell M, Subedi K, Weselake RJ, Mazurak V, Field CJ. Bypassing the Δ6-desaturase enzyme and directly providing n-3 and n-6 PUFA pathway intermediates reduces the survival of two human breast cancer cell lines. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400464] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Howe-Ming Yu
- Division of Nutrition; University of Alberta; Edmonton Alberta Canada
| | - Marnie Newell
- Division of Nutrition; University of Alberta; Edmonton Alberta Canada
| | - Kalpana Subedi
- Division of Nutrition; University of Alberta; Edmonton Alberta Canada
| | - Randall J. Weselake
- Alberta Innovates Phytola Centre, Department of Agricultural, Food and Nutritional Sciences; University of Alberta; Edmonton Alberta Canada
| | - Vera Mazurak
- Division of Nutrition; University of Alberta; Edmonton Alberta Canada
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Omega-3 free fatty acids inhibit tamoxifen-induced cell apoptosis. Biochem Biophys Res Commun 2015; 459:294-299. [DOI: 10.1016/j.bbrc.2015.02.103] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 02/18/2015] [Indexed: 11/18/2022]
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Growth and gene expression differ over time in alpha-linolenic acid treated breast cancer cells. Exp Cell Res 2015; 333:147-54. [PMID: 25743093 DOI: 10.1016/j.yexcr.2015.02.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 02/20/2015] [Accepted: 02/21/2015] [Indexed: 01/29/2023]
Abstract
SCOPE Heterogeneity of breast cancer (BC) subtypes makes BC treatment difficult. α-linolenic acid (ALA), rich in flaxseed oil, has been shown to reduce growth and increase apoptosis in several BC cell lines, but the mechanism of action needs further understanding. METHODS AND RESULTS Four BC cell lines (MCF-7, BT-474, MDA-MB-231 and MDA-MB-468) were incubated with 75 μM ALA+1 nM 17-β estradiol (E2) or 1 nM E2 only (control) for 24 h. MDA-MB-231 cells were additionally incubated at 6 and 12 h. Viable cell number was measured, and expression of genes related to BC (signaling pathways, cell cycle, apoptosis) was quantified by real-time PCR array. There was a reduction in growth of all ALA treated cell lines after 24 h, and in MDA-MB-231 cells this was time-dependent. Many genes were altered after 24 h, and these differed between cell lines. In MDA-MB-231 cells, several gene expression changes were time-dependent. CONCLUSIONS ALA reduces growth of BC cell lines, by modifying signaling pathways, which differ between BC molecular subtypes. The ALA effect on gene expression is dynamic and changes over time, indicating the significance of incubation period in detecting gene changes.
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Mason JK, Fu M, Chen J, Thompson LU. Flaxseed oil enhances the effectiveness of trastuzumab in reducing the growth of HER2-overexpressing human breast tumors (BT-474). J Nutr Biochem 2015; 26:16-23. [DOI: 10.1016/j.jnutbio.2014.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 07/17/2014] [Accepted: 08/01/2014] [Indexed: 11/25/2022]
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Liu J, Ma DWL. The role of n-3 polyunsaturated fatty acids in the prevention and treatment of breast cancer. Nutrients 2014; 6:5184-223. [PMID: 25412153 PMCID: PMC4245586 DOI: 10.3390/nu6115184] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 10/28/2014] [Accepted: 11/04/2014] [Indexed: 02/07/2023] Open
Abstract
Breast cancer (BC) is the most common cancer among women worldwide. Dietary fatty acids, especially n-3 polyunsaturated fatty acids (PUFA), are believed to play a role in reducing BC risk. Evidence has shown that fish consumption or intake of long-chain n-3 PUFA, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are beneficial for inhibiting mammary carcinogenesis. The evidence regarding α-linolenic acid (ALA), however, remains equivocal. It is essential to clarify the relation between ALA and cancer since ALA is the principal source of n-3 PUFA in the Western diet and the conversion of ALA to EPA and DHA is not efficient in humans. In addition, the specific anticancer roles of individual n-3 PUFA, alone, have not yet been identified. Therefore, the present review evaluates ALA, EPA and DHA consumed individually as well as in n-3 PUFA mixtures. Also, their role in the prevention of BC and potential anticancer mechanisms of action are examined. Overall, this review suggests that each n-3 PUFA has promising anticancer effects and warrants further research.
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Affiliation(s)
- Jiajie Liu
- Department of Human Health & Nutritional Sciences, College of Biological Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - David W L Ma
- Department of Human Health & Nutritional Sciences, College of Biological Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
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Goyal A, Sharma V, Upadhyay N, Gill S, Sihag M. Flax and flaxseed oil: an ancient medicine & modern functional food. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2014; 51:1633-53. [PMID: 25190822 PMCID: PMC4152533 DOI: 10.1007/s13197-013-1247-9] [Citation(s) in RCA: 298] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/11/2013] [Accepted: 12/26/2013] [Indexed: 02/05/2023]
Abstract
Flaxseed is emerging as an important functional food ingredient because of its rich contents of α-linolenic acid (ALA, omega-3 fatty acid), lignans, and fiber. Flaxseed oil, fibers and flax lignans have potential health benefits such as in reduction of cardiovascular disease, atherosclerosis, diabetes, cancer, arthritis, osteoporosis, autoimmune and neurological disorders. Flax protein helps in the prevention and treatment of heart disease and in supporting the immune system. As a functional food ingredient, flax or flaxseed oil has been incorporated into baked foods, juices, milk and dairy products, muffins, dry pasta products, macaroni and meat products. The present review focuses on the evidences of the potential health benefits of flaxseed through human and animals' recent studies and commercial use in various food products.
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Affiliation(s)
- Ankit Goyal
- />Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India 132001
| | - Vivek Sharma
- />Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India 132001
| | - Neelam Upadhyay
- />Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India 132001
| | - Sandeep Gill
- />BITS Pilani, Hyderabad Campus Shameerpet Mandal Rangareddy District, Hyderabad, Andhra Pradesh India 500078
| | - Manvesh Sihag
- />Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India 132001
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Mason JK, Kharotia S, Wiggins AKA, Kitson AP, Chen J, Bazinet RP, Thompson LU. 17β-Estradiol Increases Liver and Serum Docosahexaenoic Acid in Mice Fed Varying Levels of α-Linolenic Acid. Lipids 2014; 49:745-56. [DOI: 10.1007/s11745-014-3913-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 05/11/2014] [Indexed: 01/25/2023]
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Mason JK, Thompson LU. Flaxseed and its lignan and oil components: can they play a role in reducing the risk of and improving the treatment of breast cancer? Appl Physiol Nutr Metab 2014; 39:663-78. [DOI: 10.1139/apnm-2013-0420] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Flaxseed (FS), rich in the phytoestrogen lignans and α-linolenic acid-rich oil, has been suggested to have an anticancer effect. Questions remain whether FS and its lignan and oil components are effective in reducing breast cancer risk and tumour growth, and can interact beneficially with breast cancer drugs. To find answers, in vitro, animal, observational, and clinical studies on FS and its lignan and oil components were reviewed. The majority of studies in various rodent models show that 2.5%–10% FS diet or the equivalent amount of lignan or oil reduces tumour growth. Ten percent FS and equivalent lignans do not interfere with but rather increase the effectiveness of tamoxifen (80 mg/day) while the 4% FS oil increases trastuzumab/Herceptin (2.5 mg/kg) effectiveness. Observational studies show that FS and lignan intake, urinary excretion, or serum levels are associated with reduced risk, particularly in postmenopausal women. Lignans reduce breast cancer and all-cause mortality by 33%–70% and 40%–53%, respectively, without reducing tamoxifen effectiveness. Clinical trials show that FS (25 g/day with 50 mg lignans; 32 days) reduces tumour growth in breast cancer patients and lignans (50 mg/day; 1 year) reduces risk in premenopausal women. Mechanisms include decreased cell proliferation and angiogenesis and increased apoptosis through modulation of estrogen metabolism and estrogen receptor and growth factor receptor signalling pathways. More clinical trials are needed but current overall evidence indicates that FS and its components are effective in the risk reduction and treatment of breast cancer and safe for consumption by breast cancer patients.
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Affiliation(s)
- Julie K. Mason
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
| | - Lilian U. Thompson
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
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Kim KB, Nam YA, Kim HS, Hayes AW, Lee BM. α-Linolenic acid: nutraceutical, pharmacological and toxicological evaluation. Food Chem Toxicol 2014; 70:163-78. [PMID: 24859185 DOI: 10.1016/j.fct.2014.05.009] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 05/08/2014] [Accepted: 05/13/2014] [Indexed: 12/11/2022]
Abstract
α-Linolenic acid (ALA), a carboxylic acid with 18 carbons and three cis double bonds, is an essential fatty acid needed for human health and can be acquired via regular dietary intake of foods that contain ALA or dietary supplementation of foods high in ALA, for example flaxseed. ALA has been reported to have cardiovascular-protective, anti-cancer, neuro-protective, anti-osteoporotic, anti-inflammatory, and antioxidative effects. ALA is the precursor of longer chain omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), but its beneficial effects on risk factors for cardiovascular diseases are still inconclusive. The recommended intake of ALA for cardiovascular health is reported to be 1.1-2.2g/day. Although there are limited toxicological data for ALA, no serious adverse effects have been reported. The evidence on an increased prostate cancer risk in association with dietary ALA is not conclusive. Based on the limited data currently available, it may be concluded that ALA may be beneficial as a nutraceutical/pharmaceutical candidate and is safe for use as a food ingredient.
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Affiliation(s)
- Kyu-Bong Kim
- College of Pharmacy, Dankook University, 119 Dandae-ro, Cheonan, Chungnam 330-714, Republic of Korea
| | - Yoon A Nam
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Republic of Korea
| | - Hyung Sik Kim
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Republic of Korea
| | - A Wallace Hayes
- Harvard School of Public Health, 665 Huntington Ave, Boston, MA 02115, USA
| | - Byung-Mu Lee
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Republic of Korea.
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Almog L, Lev E, Schiff E, Linn S, Ben-Arye E. Bridging cross-cultural gaps: monitoring herbal use during chemotherapy in patients referred to integrative medicine consultation in Israel. Support Care Cancer 2014; 22:2793-804. [PMID: 24817575 DOI: 10.1007/s00520-014-2261-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 04/22/2014] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The high prevalence of the use of traditional herbs among patients with cancer is a cause for concern with regard to potentially adverse interactions with conventional oncology treatments. In this study, we explore herbal use among patients with cancer in northern Israel who are referred by their health care providers to complementary and traditional medicine (CTM) consultations provided to them within the conventional oncology department. The study's objectives were to identify which herbs patients use and to examine the scope of current research on the efficacy and safety regarding the identified herbs. PATIENTS AND METHODS Herbal use by patients receiving oncology care was assessed prospectively from July 2009 to July 2012 by integrative physicians (IPs) trained in herbal medicine. Historical, ethnobotanical, basic research, and clinical data regarding the identified herbs were explored by using a keyword search in PubMed and Middle Eastern ethnohistorical literature. RESULTS Disclosure of herbal use was reported by 154 of the 305 patients (50.5 %) interviewed by IPs. The use of 85 single herbs and 30 different herbal formulas was documented during the initial or follow-up IP assessments. Patients reported 14 quality of life-associated indications for herbal use. The ten most prevalent herbs displaying in vitro/in vivo anticancer activity and nine other herbs were preliminarily assessed concerning potential risks, safety, and interaction with chemotherapy. CONCLUSIONS Herbal use by patients with cancer in northern Israel is widespread and calls for further study in order to address issues of safety and effectiveness. We recommend constructing a multinational and multidisciplinary team of researchers with ethnopharmacological and clinical expertise that will explore the use of herbs among patients with cancer in a cross-cultural perspective attuned with patients' affinity to traditional herbal medicine.
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Affiliation(s)
- Limor Almog
- Integrative Oncology Program, The Oncology Service and Lin Medical Center, Clalit Health Services, 35 Rothschild St., Haifa and Western Galilee District, Haifa, Israel
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Zou Z, Bellenger S, Massey KA, Nicolaou A, Geissler A, Bidu C, Bonnotte B, Pierre AS, Minville-Walz M, Rialland M, Seubert J, Kang JX, Lagrost L, Narce M, Bellenger J. Inhibition of the HER2 pathway by n-3 polyunsaturated fatty acids prevents breast cancer in fat-1 transgenic mice. J Lipid Res 2013; 54:3453-63. [PMID: 24052576 DOI: 10.1194/jlr.m042754] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Overexpression of the tyrosine kinase receptor, ErbB2/HER2/Neu, occurs in 25-30% of invasive breast cancer (BC) with poor patient prognosis. Due to confounding factors, inconsistencies still remain regarding the protective effects of n-3 polyunsaturated fatty acids (PUFAs) on BC. We therefore evaluated whether fat-1 transgenic mice, endogenously synthesizing n-3 PUFAs from n-6 PUFAs, were protected against BC development, and we then aimed to study in vivo a mechanism potentially involved in such protection. E0771 BC cells were implanted into fat-1 and wild-type (WT) mice. After tumorigenesis examination, we analyzed the expression of proteins involved in the HER2 signaling pathway and lipidomic analyses were performed in tumor tissues and plasma. Our results showed that tumors totally disappeared by day 15 in fat-1 mice but continued to grow in WT mice. This prevention can be related in part to significant repression of the HER2/β-catenin signaling pathway and formation of significant levels of n-3 PUFA-derived bioactive mediators (particularly 15-hydroxyeicosapentaenoic acid, 17-hydroxydocosahexaenoic acid, and prostaglandin E3) in the tumors of fat-1 mice compared with WT mice. All together these data demonstrate an anti-BC effect of n-3 PUFAs through, at least in part, HER2 signaling pathway downregulation, and highlight the importance of gene-diet interactions in BC.
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Affiliation(s)
- Zuquan Zou
- Université de Bourgogne, UFR Sciences de la Vie, de la Terre et de l'Environnement, Dijon, France
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Flower G, Fritz H, Balneaves LG, Verma S, Skidmore B, Fernandes R, Kennedy D, Cooley K, Wong R, Sagar S, Fergusson D, Seely D. Flax and Breast Cancer. Integr Cancer Ther 2013; 13:181-92. [DOI: 10.1177/1534735413502076] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background. Flax is a food and dietary supplement commonly used for menopausal symptoms. Flax is known for its lignan, α-linolenic acid, and fiber content, components that may possess phytogestrogenic, anti-inflammatory, and hormone modulating effects, respectively. We conducted a systematic review of flax for efficacy in improving menopausal symptoms in women living with breast cancer and for potential impact on risk of breast cancer incidence or recurrence. Methods. We searched MEDLINE, Embase, the Cochrane Library, and AMED from inception to January 2013 for human interventional or observational data pertaining to flax and breast cancer. Results. Of 1892 records, we included a total of 10 studies: 2 randomized controlled trials, 2 uncontrolled trials, 1 biomarker study, and 5 observational studies. Nonsignificant (NS) decreases in hot flash symptomatology were seen with flax ingestion (7.5 g/d). Flax (25 g/d) increased tumor apoptotic index ( P < .05) and decreased HER2 expression ( P < .05) and cell proliferation (Ki-67 index; NS) among newly diagnosed breast cancer patients when compared with placebo. Uncontrolled and biomarker studies suggest beneficial effects on hot flashes, cell proliferation, atypical cytomorphology, and mammographic density, as well as possible anti-angiogenic activity at doses of 25 g ground flax or 50 mg secoisolariciresinol diglycoside daily. Observational data suggests associations between flax and decreased risk of primary breast cancer (adjusted odds ratio [AOR] = 0.82; 95% confidence interval [CI] = 0.69-0.97), better mental health (AOR = 1.76; 95% CI = 1.05-2.94), and lower mortality (multivariate hazard ratio = 0.69; 95% CI = 0.50-0.95) among breast cancer patients. Conclusions. Current evidence suggests that flax may be associated with decreased risk of breast cancer. Flax demonstrates antiproliferative effects in breast tissue of women at risk of breast cancer and may protect against primary breast cancer. Mortality risk may also be reduced among those living with breast cancer.
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Affiliation(s)
- Gillian Flower
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
| | - Heidi Fritz
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Lynda G. Balneaves
- University of British Columbia School of Nursing, Vancouver, British Columbia, Canada
- CAMEO Program, Vancouver, British Columbia, Canada
| | - Shailendra Verma
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Ottawa Regional Cancer Centre, Ottawa Hospital, Ontario, Canada
| | - Becky Skidmore
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Rochelle Fernandes
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Deborah Kennedy
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Kieran Cooley
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | | | | | - Dean Fergusson
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Dugald Seely
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Zou Z, Bidu C, Bellenger S, Narce M, Bellenger J. n-3 polyunsaturated fatty acids and HER2-positive breast cancer: interest of the fat-1 transgenic mouse model over conventional dietary supplementation. Biochimie 2013; 96:22-7. [PMID: 24012777 DOI: 10.1016/j.biochi.2013.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 08/23/2013] [Indexed: 01/10/2023]
Abstract
Overexpression of the tyrosine kinase receptor ErbB2/HER2/Neu, occurs in 25%-30% of invasive breast cancer (BC) with poor patient prognosis. Even if numerous studies have shown prevention of breast cancer by n-3 fatty acid intake, the experimental conditions under which n-3 fatty acids exert their protective effect have been variable from study to study, preventing unifying conclusions. Due to confounding factors, inconsistencies still remain regarding protective effects of n-3 polyunsaturated fatty acids (PUFA) on BC. When animals are fed with dietary supplementation in n-3 fatty acids (the traditional approach to modify tissue content and decrease the n-6/n-3 ratio) complex dietary interactions can occur among dietary lipids (antioxidants, vitamins…) that can modulate the activity of n-3 fatty acids. So, what are the specific roles of these n-3 PUFA in reducing breast cancer risk and particularly preventing HER2-positive breast cancer? In this review, we discuss crucial points that may account for discrepancies of results and provide a highly effective genetic approach that can eliminate confounding factors of diet for evaluating the molecular mechanisms of n-3 PUFA in HER2 signaling pathway regulation. The fat-1 transgenic mouse model is capable of converting n-6 to n-3 fatty acids leading to an increase in n-3 fatty acid content with a balanced n-6/n-3 fatty acid ratio in all tissues. The fat-1 mouse model allows well-controlled studies in HER2-positive breast cancer prevention to be performed, without the conflict of potential confounding factors of diet.
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Affiliation(s)
- Zuquan Zou
- Université de Bourgogne, UFR Sciences de la Vie, de la Terre et de l'Environnement, 6 Boulevard Gabriel, 21000 Dijon, France; INSERM UMR U866 Lipides Nutrition Cancer, Université de Bourgogne, 6 Boulevard Gabriel, 21000 Dijon, France
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Johnson CH, Manna SK, Krausz KW, Bonzo JA, Divelbiss RD, Hollingshead MG, Gonzalez FJ. Global metabolomics reveals urinary biomarkers of breast cancer in a mcf-7 xenograft mouse model. Metabolites 2013; 3:658-72. [PMID: 24958144 PMCID: PMC3901288 DOI: 10.3390/metabo3030658] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 08/02/2013] [Accepted: 08/02/2013] [Indexed: 11/23/2022] Open
Abstract
Global metabolomics analysis has the potential to uncover novel metabolic pathways that are differentially regulated during carcinogenesis, aiding in biomarker discovery for early diagnosis and remission monitoring. Metabolomics studies with human samples can be problematic due to high inter-individual variation; however xenografts of human cancers in mice offer a well-controlled model system. Urine was collected from a xenograft mouse model of MCF-7 breast cancer and analyzed by mass spectrometry-based metabolomics to identify metabolites associated with cancer progression. Over 10 weeks, 24 h urine was collected weekly from control mice, mice dosed with estradiol cypionate (1 mg/mL), mice inoculated with MCF-7 cells (1 × 107) and estradiol cypionate (1 mg/mL), and mice dosed with MCF-7 cells (1 × 107) only (n = 10/group). Mice that received both estradiol cypionate and MCF-7 cells developed tumors from four weeks after inoculation. Five urinary metabolites were identified that were associated with breast cancer; enterolactone glucuronide, coumaric acid sulfate, capric acid glucuronide, an unknown metabolite, and a novel mammalian metabolite, "taurosebacic acid". These metabolites revealed a correlation between tumor growth, fatty acid synthesis, and potential anti-proliferative effects of gut microbiota-metabolized food derivatives. These biomarkers may be of value for early diagnosis of cancer, monitoring of cancer therapeutics, and may also lead to future mechanistic studies.
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Affiliation(s)
- Caroline H Johnson
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Soumen K Manna
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Kristopher W Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Jessica A Bonzo
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Raymond D Divelbiss
- Developmental Therapeutics Program, SAIC-Frederick, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - Melinda G Hollingshead
- Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute-Frederick, Frederick, MD 21702, USA.
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Armstrong CM, Billimek AR, Allred KF, Sturino JM, Weeks BR, Allred CD. A novel shift in estrogen receptor expression occurs as estradiol suppresses inflammation-associated colon tumor formation. Endocr Relat Cancer 2013; 20:515-25. [PMID: 23702470 DOI: 10.1530/erc-12-0308] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Postmenopausal women on estrogen replacement therapy (ERT) have a reduced risk of developing colon cancer compared with postmenopausal women not on ERT, suggesting a role for estradiol (E2) in protection against this disease. To determine whether E2 protects against inflammation-associated colon cancer when administered following the initiation of colonic DNA damage, in this study, we implanted E2-containing pellets into mice after co-treatment with azoxymethane and two rounds of dextran sulfate sodium (DSS). Wild-type (WT) E2-treated mice had reduced numbers and average area of adenocarcinomas compared with the control mice. These effects were lost in estrogen receptor-β (Erβ (Esr2)) knockout mice. Surprisingly, apoptosis was reduced and cell proliferation was increased in sections from tumors of the WT E2 mice compared with the WT control mice. These findings are probably due, in part, to a reduction in ERβ expression in colonic epithelial cells as the cells progressed from a non-malignant to a cancerous state as enhanced apoptosis was observed in normal colonocytes expressing higher levels of ERβ. Furthermore, epithelial cells within the tumors had dramatically increased ERα mRNA and protein expression compared with the non-diseased mice. We conclude that while E2 treatment resulted in an overall suppression of colonic adenocarcinoma formation, reduced ERβ expression accompanied by enhanced ERα expression caused an altered colonocyte response to E2 treatment compared with the earlier stages of colon cancer development. These data are the first examples of decreased ERβ expression concurrent with increased ERα expression as a disease develops and highlight the importance of understanding the timing of E2 exposure with regard to the prevention of inflammation-associated colon cancer.
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Affiliation(s)
- Cameron M Armstrong
- Departments of Nutrition and Food Science Veterinary Pathobiology, Texas A&M University, College Station, TX 77843, USA
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Mason JK, Fu MH, Chen J, Yu Z, Thompson LU. Dietary Flaxseed–Trastuzumab Interactive Effects on the Growth of HER2-Overexpressing Human Breast Tumors (BT-474). Nutr Cancer 2013; 65:451-9. [DOI: 10.1080/01635581.2013.756921] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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