51
|
Bastías-Montes JM, Monterrosa K, Muñoz-Fariña O, García O, Acuña-Nelson SM, Vidal-San Martín C, Quevedo-Leon R, Kubo I, Avila-Acevedo JG, Domiguez-Lopez M, Wei ZJ, Thakur K, Cespedes-Acuña CL. Chemoprotective and antiobesity effects of tocols from seed oil of Maqui-berry: Their antioxidative and digestive enzyme inhibition potential. Food Chem Toxicol 2019; 136:111036. [PMID: 31862287 DOI: 10.1016/j.fct.2019.111036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 11/19/2019] [Accepted: 12/03/2019] [Indexed: 11/18/2022]
Abstract
Maqui-berry (Aristotelia chilensis) is the emerging Chilean superfruit with high nutraceutical value. Until now, the research on this commodity was focused on the formulations enriched with polyphenols from the pulp. Herein, contents of tocols were compared in the seed oil of Maqui-berry obtained through three different extraction methods followed by determining their antioxidative and enzyme inhibitions in-vitro. Firstly, oilseed was extracted with n-hexane (Soxhlet method), chloroform/methanol/water (Bligh and Dyer method) and pressing (industrial). These samples were used to access their effects against DPPH, HORAC, ORAC, FRAP, Lipid-peroxidation (TBARS), α-amylase, α-glucosidase, and pancreatic lipase. All the isomers of tocopherol and tocotrienol were identified, and β-sitosterol was the only sterol found in higher amounts than other vegetable oils. The Bligh and Dyer method could lead to the highest antioxidative capacity compared to Soxhlet and press methods likely because the latter have a higher amount of tocopherols. Further, seed oil from Maqui berry and their tocols (α, β, γ, δ-tocopherols, tocotrienols, and β-sitosterol) warrant clinical investigation for their antioxidative and antiobesity potential. Taken together, these findings provide relevant and suitable conditions for the industrial processing of Maqui-berry.
Collapse
Affiliation(s)
| | - Karen Monterrosa
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Ociel Muñoz-Fariña
- Instituto de Ciencia y Tecnología en Alimentos, Universidad Austral de Chile, Valdivia, Chile
| | - Olga García
- Instituto de Ciencia y Tecnología en Alimentos, Universidad Austral de Chile, Valdivia, Chile
| | - Sergio M Acuña-Nelson
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Carla Vidal-San Martín
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Roberto Quevedo-Leon
- Departamento de Acuicultura y Recursos Agroalimentarios, Universidad de Los Lagos, Osorno, Chile
| | - Isao Kubo
- ESPM Department, UC-Berkeley, CA, 94720-3112, USA
| | | | - Mariana Domiguez-Lopez
- Departamento de Biología Celular y Desarrollo, Laboratorio 305-Sur, Instituto de Fisiología Celular. Universidad Nacional Autónoma de Mexico, Mexico D.F., Mexico
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Carlos L Cespedes-Acuña
- Department of Basic Sciences, Research Group in Chemistry and Biotechnology of Bioactive Natural Products, Faculty of Sciences, University of Bio-Bío, Andrés Bello Avenue, Chillan, Chile.
| |
Collapse
|
52
|
Alcohol consumption and serum metabolite concentrations in young women. Cancer Causes Control 2019; 31:113-126. [PMID: 31828464 DOI: 10.1007/s10552-019-01256-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE Alcohol consumption is an established breast cancer risk factor, though further research is needed to advance our understanding of the mechanism underlying the association. We used global metabolomics profiling to identify serum metabolites and metabolic pathways that could potentially mediate the alcohol-breast cancer association. METHODS A cross-sectional analysis of reported alcohol consumption and serum metabolite concentrations was conducted among 211 healthy women 25-29 years old who participated in the Dietary Intervention Study in Children 2006 Follow-Up Study (DISC06). Alcohol-metabolite associations were evaluated using multivariable linear mixed-effects regression. RESULTS Alcohol was significantly (FDR p < 0.05) associated with several serum metabolites after adjustment for diet composition and other potential confounders. The amino acid sarcosine, the omega-3 fatty acid eicosapentaenoate, and the steroid 4-androsten-3beta,17beta-diol monosulfate were positively associated with alcohol intake, while the gamma-tocopherol metabolite gamma-carboxyethyl hydroxychroman (CEHC) was inversely associated. Positive associations of alcohol with 2-methylcitrate and 4-androsten-3beta,17beta-diol disulfate were borderline significant (FDR p < 0.10). Metabolite set enrichment analysis identified steroids and the glycine pathway as having more members associated with alcohol consumption than expected by chance. CONCLUSIONS Most of the metabolites associated with alcohol in the current analysis participate in pathways hypothesized to mediate the alcohol-breast cancer association including hormonal, one-carbon metabolism, and oxidative stress pathways, but they could also affect risk via alternative pathways. Independent replication of alcohol-metabolite associations and prospective evaluation of confirmed associations with breast cancer risk are needed.
Collapse
|
53
|
Ranard KM, Erdman JW. Effects of dietary RRR α-tocopherol vs all-racemic α-tocopherol on health outcomes. Nutr Rev 2019; 76:141-153. [PMID: 29301023 DOI: 10.1093/nutrit/nux067] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Of the 8 vitamin E analogues, RRR α-tocopherol likely has the greatest effect on health outcomes. Two sources of α-tocopherol, naturally sourced RRR α-tocopherol and synthetic all-racemic α-tocopherol, are commonly consumed from foods and dietary supplements in the United States. A 2016 US Food and Drug Administration ruling substantially changed the RRR to all-racemic α-tocopherol ratio of biopotency from 1.36:1 to 2:1 for food-labeling purposes, but the correct ratio is still under debate in the literature. Few studies have directly compared the 2 α-tocopherol sources, and existing studies do not compare the efficacy of either source for preventing or treating disease in humans. To help close this gap, this review evaluates studies that investigated the effects of either RRR α-tocopherol or all-racemic α-tocopherol on health outcomes, and compares the overall findings. α-Tocopherol has been used to prevent and/or treat cancer and diseases of the central nervous system, the immune system, and the cardiovascular system, so these diseases are the focus of the review. No firm conclusions about the relative effects of the α-tocopherol sources on health outcomes can be made. Changes to α-tocopherol-relevant policies have proceeded without adequate scientific support. Additional research is needed to assemble the pieces of the α-tocopherol puzzle and to determine the RRR to all-racemic α-tocopherol ratio of biopotency for health outcomes.
Collapse
Affiliation(s)
- Katherine M Ranard
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - John W Erdman
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| |
Collapse
|
54
|
Abubakar IB, Loh HS. Potentiation of in vitro apoptotic effects of δ-Tocotrienol and Jerantinine A on human lung adenocarcinoma cells. JOURNAL OF HERBMED PHARMACOLOGY 2019. [DOI: 10.15171/jhp.2019.49] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Introduction: The apoptotic effects of single-compound and combined sub-effective concentrations of δ-tocotrienol and jerantinine A on human lung adenocarcinoma (A549) cells were investigated. Methods: Assays including cell viability, histochemical and immunofluorescence staining techniques, flow cytometry and enzyme activity were used. Results: The combination of δ-tocotrienol with jerantinine A at sub-effective concentrations induced a synergistic effect and improved selective toxicity towards cancerous A549 cells over normal lung fibroblast (MRC5) cells compared to the single-compound jerantinine. Morphological features of apoptosis were evident on treated A549 cells. Combined sub-effective concentrations of δ-tocotrienol with jerantinine A induced a predominantly G2/M cell cycle arrest and characterised by a disruption of microtubular networks mediated via caspase 8, 9 and 3 enzymatic activities. Conclusion: These findings demonstrated improved potency in vitro and reduced dose-related toxicity of jerantinine A to normal cells through prospective combined treatment between low-concentration δ-tocotrienol and jerantinine A for lung cancer.
Collapse
Affiliation(s)
- Ibrahim Babangida Abubakar
- School of Biosciences, Faculty of Science, The University of Nottingham Malaysia Campus, Jalan Broga 43500 Semenyih, Selangor Darul Ehsan, Malaysia
- Department of Biochemistry, Kebbi State University of Science and Technology, PMB 1144, Alero, Kebbi State, Nigeria
| | - Hwei-San Loh
- School of Biosciences, Faculty of Science, The University of Nottingham Malaysia Campus, Jalan Broga 43500 Semenyih, Selangor Darul Ehsan, Malaysia
- Biotechnology Research Centre, The University of Nottingham Malaysia Campus, Jalan Broga 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| |
Collapse
|
55
|
Chariyakornkul A, Punvittayagul C, Taya S, Wongpoomchai R. Inhibitory effect of purple rice husk extract on AFB 1-induced micronucleus formation in rat liver through modulation of xenobiotic metabolizing enzymes. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:237. [PMID: 31481128 PMCID: PMC6724366 DOI: 10.1186/s12906-019-2647-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 08/21/2019] [Indexed: 12/31/2022]
Abstract
Background Rice husk, a waste material produced during milling, contains numerous phytochemicals that may be sources of cancer chemopreventive agents. Various biological activities of white and colored rice husk have been reported. However, there are few comparative studies of the cancer chemopreventive effects of white and colored rice husk. Methods This study investigated the cancer chemopreventive activities of two different colors of rice husk using in vitro and in vivo models. A bacterial mutation assay using Salmonella typhimurium strains TA98 and TA100 was performed; enzyme induction activity in murine hepatoma cells was measured, and a liver micronucleus test was performed in male Wistar rats. Results The white rice husk (WRHE) and purple rice husk (PRHE) extracts were not mutagenic in Salmonella typhimurium TA98 or TA100 in the presence or absence of metabolic activation. However, the extracts exhibited antimutagenicity against aflatoxin B1 (AFB1) and 2-amino-3,4 dimethylimidazo[4,5-f]quinolone (MeIQ) in a Salmonella mutation assay. The extracts also induced anticarcinogenic enzyme activity in a murine Hepa1c1c7 hepatoma cell line. Interestingly, PRHE but not WRHE exhibited antigenotoxicity in the rat liver micronucleus test. PRHE significantly decreased the number of micronucleated hepatocytes in AFB1-initiated rats. PRHE contained higher amounts of phenolic compounds and vitamin E than WRHE in both tocopherols and tocotrienols as well as polyphenol such as cyanidin-3-glucoside, protocatechuic acid and vanillic acid. Furthermore, PRHE increased CYP1A1 and 1A2 activities while decreasing CYP3A2 activity in the livers of AFB1-treated rats. PRHE also enhanced various detoxifying enzyme activities, including glutathione S-transferase, NAD(P)H quinone oxidoreductase and heme oxygenase. Conclusions PRHE showed potent cancer chemopreventive activity in a rat liver micronucleus assay through modulation of phase I and II xenobiotic metabolizing enzymes involved in AFB1 metabolism. Vitamin E and phenolic compounds may be candidate antimutagens in purple rice husk. Electronic supplementary material The online version of this article (10.1186/s12906-019-2647-9) contains supplementary material, which is available to authorized users.
Collapse
|
56
|
Olatunya AM, Omojola A, Akinpelu K, Akintayo ET. Vitamin E, Phospholipid, and Phytosterol Contents of Parkia biglobosa and Citrullus colocynthis Seeds and Their Potential Applications to Human Health. Prev Nutr Food Sci 2019; 24:338-343. [PMID: 31608260 PMCID: PMC6779087 DOI: 10.3746/pnf.2019.24.3.338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/13/2019] [Indexed: 12/31/2022] Open
Abstract
Vitamin E, phytosterol, and phospholipids are classes of lipids that are also referred to as nutraceuticals. These lipids are components of foods, which have nutritional as well as numerous other health benefits, and consumption has been shown to prevent certain deadly diseases. These compounds can only be obtained from plant products; there is therefore a need for more research on the availability of these compounds from common food sources. Oils extracted from Citrullus colocynthis and Parkia biglobosa seeds were analysed for vitamin E, phospholipid, and phytosterol contents using a chromatographic technique. The seeds had total vitamin E contents of 53.47 and 42.57 mg/100 g, phytosterol contents of 260 and 451 mg/100 g, and phospholipid contents of 409 and 1,603 mg/100 g for C. colocynthis and P. biglobosa, respectively. Thus, consumption of these two plants as condiments will help people consume these essential lipids and could serve as dietary supplements to prevent and combat occurrence of certain deadly diseases; this is important as the world is revolving towards disease prevention rather than curing, which is often more expensive and difficult.
Collapse
Affiliation(s)
| | - Akinwale Omojola
- Department of Chemistry, Ekiti State University, Ado-Ekiti, Ekiti State 360221, Nigeria
| | - Kolawole Akinpelu
- Department of Chemistry, Ekiti State University, Ado-Ekiti, Ekiti State 360221, Nigeria
| | | |
Collapse
|
57
|
Lee H, Lim Y. Gamma-tocopherol ameliorates hyperglycemia-induced hepatic inflammation associated with NLRP3 inflammasome in alloxan-induced diabetic mice. Nutr Res Pract 2019; 13:377-383. [PMID: 31583056 PMCID: PMC6760984 DOI: 10.4162/nrp.2019.13.5.377] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/27/2019] [Accepted: 05/28/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/OBJECTIVES Hyperglycemia-induced hepatic damage has been recognized as one of the major cause of complications in diabetes. Hepatic complications are associated with inflammation and oxidative stress in diabetes. In this study, we investigated the hypothesis that gamma-tocopherol (GT) supplementation ameliorates NLRP3 inflammasome associated hepatic inflammation in diabetes. MATERIALS/METHODS Diabetes was induced by the intraperitoneal injection of alloxan (150 mg/kg. BW) in ICR mice. All mice were fed with a control diet (AIN-76A). After diabetes was induced (fasting glucose level ≥ 250 mg/dL), the mice were treated with tocopherol-stripped corn oil or GT-supplemented (35 mg/kg) corn oil, respectively, by gavage for 2 weeks. RESULTS GT supplementation reduced fasting blood glucose levels in diabetic mice relative to non-treated diabetic mice. Moreover, GT supplementation ameliorated hyperglycemia-induced hepatic damage by regulation of NOD-like receptor protein 3 (NLRP3)-inflammasome associated inflammation represented by NLRP3, apoptosis-associated speck-like protein containing a caspase-recruitment domain, caspase-1, nuclear factor-κB pathway as well as oxidative stress demonstrated by nuclear factor erythroid 2-related factor 2, NAD(P)H dehydrogenase quinone 1, catalase and glutathione-dependent peroxidase in diabetic mice. CONCLUSION The findings suggested that GT supplementation ameliorated hepatic damage by attenuating inflammation and oxidative stress in alloxan-induced diabetic mice. Taken together, GT could be a beneficial nutrient that can ameliorate inflammatory responses associated with NLRP3 inflammasome in hyperglycemia-induced hepatic damage.
Collapse
Affiliation(s)
- Heaji Lee
- Department of Food and Nutrition, Kyung Hee University, 26 Kyunghee-Daero, Dongdaemun-Gu, Seoul 02447, Republic of Korea
| | - Yunsook Lim
- Department of Food and Nutrition, Kyung Hee University, 26 Kyunghee-Daero, Dongdaemun-Gu, Seoul 02447, Republic of Korea
| |
Collapse
|
58
|
Maragheh AD, Tabrizi MH, Karimi E, Seyedi SMR, Khatamian N. Producing the sour cherry pit oil nanoemulsion and evaluation of its anti-cancer effects on both breast cancer murine model and MCF-7 cell line. J Microencapsul 2019; 36:399-409. [PMID: 31250686 DOI: 10.1080/02652048.2019.1638460] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Aims: The sour cherry pit oil (SCPO) displays the potent anti-inflammatory, and antioxidant activities. In the present study, we have produced the SCPO nanoemulsion (SCPO-NE) to evaluate their anticancer impacts on breast cancer comparing with its un-processed oil. Methods: We employed an ultrasonication method to formulate the stable SCPO-NE. Their size, stability, and morphology were measured. Then, their cytotoxic impacts and apoptotic activity were checked on MCF7 breast cancer cells and compared with the normal Human foreskin fibroblasts (HFF). Finally, their anti-tumour effect was studied on murine breast cancer model (inoculated with TUBO cancer cells). Results: The results indicated the 36.5 nm stable SCPO-NE significantly decreased the MCF7 cells viability comparing with normal HFF cells, and reduced the tumour size in the murine model. Conclusion: We suggest that SCPO-NEs are able to efficiently inhibit breast cancer progression in both MCF7 cells and murine breast cancer model through apoptotic death induction.
Collapse
Affiliation(s)
| | | | - Ehsan Karimi
- a Department of Biology , Islamic Azad University, Mashhad Branch , Mashhad , Iran
| | - Seyed Mohammad Reza Seyedi
- b Department of Biology, Faculty of Sciences , Ferdowsi University of Mashhad , Mashhad , Iran.,c Department of Chemistry, Faculty of Sciences , Ferdowsi University of Mashhad , Mashhad , Iran
| | - Niloufar Khatamian
- a Department of Biology , Islamic Azad University, Mashhad Branch , Mashhad , Iran
| |
Collapse
|
59
|
Lin M, Han P, Li Y, Wang W, Lai D, Zhou L. Quinoa Secondary Metabolites and Their Biological Activities or Functions. Molecules 2019; 24:E2512. [PMID: 31324047 PMCID: PMC6651730 DOI: 10.3390/molecules24132512] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/03/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023] Open
Abstract
Quinoa (Chenopodium quinoa Willd.) was known as the "golden grain" by the native Andean people in South America, and has been a source of valuable food over thousands of years. It can produce a variety of secondary metabolites with broad spectra of bioactivities. At least 193 secondary metabolites from quinoa have been identified in the past 40 years. They mainly include phenolic acids, flavonoids, terpenoids, steroids, and nitrogen-containing compounds. These metabolites exhibit many physiological functions, such as insecticidal, molluscicidal and antimicrobial activities, as well as various kinds of biological activities such as antioxidant, cytotoxic, anti-diabetic and anti-inflammatory properties. This review focuses on our knowledge of the structures, biological activities and functions of quinoa secondary metabolites. Biosynthesis, development and utilization of the secondary metabolites especially from quinoa bran were prospected.
Collapse
Affiliation(s)
- Minyi Lin
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Peipei Han
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Yuying Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Weixuan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
60
|
Chai W, Maskarinec G, Franke AA, Monroe KR, Park SY, Kolonel LN, Wilkens LR, Le Marchand L, Cooney RV. Association of serum γ-tocopherol levels with mortality: the Multiethnic Cohort Study. Eur J Clin Nutr 2019; 74:87-96. [PMID: 31243335 PMCID: PMC6930982 DOI: 10.1038/s41430-019-0460-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND/OBJECTIVES γ-Tocopherol has unique properties that protect against nitrogen oxide-mediated cellular damage. To elucidate the potential role of γ-tocopherol in the aging process, we examined the associations of serum γ-tocopherol levels with all-cause and cause-specific mortality. SUBJECTS/METHODS Among participants in the biorepository subcohort of the Multiethnic Cohort Study, pre-cancer diagnostic serum γ-tocopherol levels were measured in a subset of 3904 men and 4461 women. Of these, 22.7% of men and 13.5% of women died during a mean follow-up time of 9.6 ± 2.6 years. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) for mortality associated with γ-tocopherol were estimated by Cox proportional hazards regression. RESULTS Positive associations of serum γ-tocopherol with all-cause, cancer, and cardiovascular disease mortality (CVD) (Ptrend < 0.05) were detected after adjusting for age, race/ethnicity, and serum cholesterol levels. The respective HRs (95% CIs) for the highest versus the lowest sex-specific γ-tocopherol quartile were 1.43 (1.17-1.74), 1.79 (1.22-2.64), and 1.52 (1.10-2.11) for men and 1.58 (1.25-2.00), 1.59 (1.05-2.41), and 1.59 (1.07-2.37) for women. Associations remained significant for all-cause mortality among women after further adjusting for smoking variables and history of cancer, CVD, diabetes, and hypertension at cohort entry (highest vs. lowest γ-tocopherol quartile: HR = 1.38; 95% CI = 1.08-1.75; Ptrend = 0.005). Overall, associations with all-cause mortality were consistent across race/ethnicity and were significant in three of ten sex-specific racial/ethnic groups in the fully adjusted models, with no interactions between ethnicity and γ-tocopherol. CONCLUSIONS The positive association between γ-tocopherol and mortality suggests a potential physiological role for γ-tocopherol in response to pathological conditions.
Collapse
Affiliation(s)
- Weiwen Chai
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, USA.
| | | | - Adrian A Franke
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Kristine R Monroe
- Department of Preventive Medicine, Keck School of Medicine, and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
| | - Song-Yi Park
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Laurence N Kolonel
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Lynne R Wilkens
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Loïc Le Marchand
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Robert V Cooney
- Office of Public Health Studies, University of Hawaii at Manoa, Honolulu, HI, USA
| |
Collapse
|
61
|
Dokkaew A, Punvittayagul C, Insuan O, Limtrakul Dejkriengkraikul P, Wongpoomchai R. Protective Effects of Defatted Sticky Rice Bran Extracts on the Early Stages of Hepatocarcinogenesis in Rats. Molecules 2019; 24:molecules24112142. [PMID: 31174320 PMCID: PMC6600176 DOI: 10.3390/molecules24112142] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/26/2019] [Accepted: 06/04/2019] [Indexed: 12/31/2022] Open
Abstract
Use of natural products is one strategy to lessen cancer incidence. Rice bran, especially from colored rice, contains high antioxidant activity. Cancer chemopreventive effects of hydrophilic purple rice bran extract (PRBE) and white rice bran extract (WRBE) on carcinogen-induced preneoplastic lesion formation in livers of rats were investigated. A 15-week administration of PRBE and WRBE did not induce hepatic glutathione S-transferase placental form (GST-P) positive foci formation as the biomarker of rat hepatocarcinogenesis. PRBE and WRBE at 500 mg/kg body weight significantly decreased number and size of GST-P positive foci in diethylnitrosamine (DEN)-initiated rats. The number of proliferating nuclear antigen positive hepatocytes were also reduced in preneoplastic lesions in both PRBE and WRBE fed DEN-treated rats. Notably, the inhibitory effect on GST-P positive foci formation induced by DEN during the initiation stage was found only in rats treated by PRBE for five weeks. Furthermore, PRBE attenuated the expression of proinflammatory cytokines involving genes including TNF-α, iNOS, and NF-κB. PBRE contained a higher number of anthocyanins and other phenolic compounds and vitamin E. PRBE might protect DEN-induced hepatocarcinogenesis in rats via attenuation of cellular inflammation and cell proliferation. Anthocyanins and other phenolic compounds, as well as vitamin E, might play a role in cancer chemopreventive activity in rice bran extract.
Collapse
Affiliation(s)
- Aphisit Dokkaew
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Charatda Punvittayagul
- Research Affairs, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand.
- Functional Food Research Center for Well-being, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Orapin Insuan
- Department of Medical Technology, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand.
| | - Pornngarm Limtrakul Dejkriengkraikul
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Rawiwan Wongpoomchai
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
- Functional Food Research Center for Well-being, Chiang Mai University, Chiang Mai 50200, Thailand.
| |
Collapse
|
62
|
Hakiminia B, Goudarzi A, Moghaddas A. Has vitamin E any shreds of evidence in cisplatin-induced toxicity. J Biochem Mol Toxicol 2019; 33:e22349. [PMID: 31115123 DOI: 10.1002/jbt.22349] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 04/24/2019] [Indexed: 12/14/2022]
Abstract
Cisplatin is one of the highly consumed and effective antitumor agents whose clinical application is accompanied by nephrotoxicity adverse reaction. Also, other complications such as ototoxicity and hepatotoxicity are a matter of concern. Today, it is suggested that cisplatin-associated toxicities are mainly induced by free radicals production, which will result in oxidative organ injury. The evidence is growing over the protective effects of antioxidants on cisplatin-induced adverse reactions especially nephrotoxicity. The possible protective effects of vitamin E and its derivative in cisplatin-induced nephrotoxicity and ototoxicity are reviewed here at the light of pertinent results from basic and clinical research. Administration of vitamin E alone or in combination with other antioxidant agents could cause amelioration in oxidative stress biomarkers such as decreasing the level of malondialdehyde, reducing serum urea and creatinine, and also enhancing the activities of renal antioxidant enzymes including renal catalase, glutathione-S-transferase, and superoxide dismutase. Although the data from most of the studies are in favors of protective effects of vitamin E against cisplatin-induced toxicity, more clinical trials are needed to clarify the clinical importance of vitamin E administration as an antioxidant during cisplatin therapy in cancer condition.
Collapse
Affiliation(s)
- Bahareh Hakiminia
- Clinical Pharmacy and Pharmacy Practice, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Azadeh Moghaddas
- Clinical Pharmacy and Pharmacy Practice, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
63
|
Ran L, Liu AB, Lee MJ, Xie P, Lin Y, Yang CS. Effects of antibiotics on degradation and bioavailability of different vitamin E forms in mice. Biofactors 2019; 45:450-462. [PMID: 30694588 DOI: 10.1002/biof.1492] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/10/2018] [Accepted: 12/29/2018] [Indexed: 12/18/2022]
Abstract
Tocopherols (T) and tocotrienols (T3), all existing in α, β, γ, and δ-forms, are the eight forms of vitamin E (VE). In this study, we investigated the effects of gut microbiota on the degradation and tissue levels of different VE forms by treating mice with antibiotics in drinking water for 12 days. The mice also received an intragastric (i.g.) dose of VE mixture (mVE; α-T, γ-T, δ-T, γ-T3, and δ-T3, each at a dose of 75 mg/kg) every morning. Antibiotic treatment significantly increased the blood levels of all VE forms in mice that received an i.g. dose of mVE in the morning, 3 h before sacrifice. Without this morning dose, the blood levels of α-T were at the normal physiological levels, but those of the other VE forms were much lower; and the levels of all VE forms were not significantly affected by antibiotics. The liver levels of these VE forms were generally higher and followed the same pattern as the serum. On the contrary, the levels of most side-chain degradation metabolites of VE forms in the serum, liver, kidney, urine, and fecal samples were significantly decreased by antibiotics. The increased bioavailability of VE by antibiotics is probably due to increased absorption of VE or its decreased degradation by gut microbes. The results demonstrate the important roles of gut microbiota in the degradation of VE and in decreasing the bioavailabilities of VE forms. © 2019 BioFactors, 45(3):450-462, 2019.
Collapse
Affiliation(s)
- Linwu Ran
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Ningxia Medical University, Yinchuan, Ningxia, China
| | - Anna B Liu
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Mao-Jung Lee
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Yong Lin
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Department of Biostatistics, School of Public Health, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| |
Collapse
|
64
|
Husain K, Zhang A, Shivers S, Davis-Yadley A, Coppola D, Yang CS, Malafa MP. Chemoprevention of Azoxymethane-induced Colon Carcinogenesis by Delta-Tocotrienol. Cancer Prev Res (Phila) 2019; 12:357-366. [DOI: 10.1158/1940-6207.capr-18-0290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 12/17/2018] [Accepted: 03/29/2019] [Indexed: 11/16/2022]
|
65
|
Jiang Q. Natural forms of vitamin E and metabolites-regulation of cancer cell death and underlying mechanisms. IUBMB Life 2018; 71:495-506. [PMID: 30548200 DOI: 10.1002/iub.1978] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/17/2018] [Accepted: 11/02/2018] [Indexed: 12/25/2022]
Abstract
The disappointing results from large clinical studies of α-tocopherol (αT), the major form of vitamin E in tissues, for prevention of chronic diseases including cancer have cast doubt on not only αT but also other forms of vitamin E regarding their role in preventing carcinogenesis. However, basic research has shown that specific forms of vitamin E such as γ-tocopherol (γT), δ-tocopherol (δT), γ-tocotrienol (γTE) and δ-tocotrienol (δTE) can inhibit the growth and induce death of many types of cancer cells, and are capable of suppressing cancer development in preclinical cancer models. For these activities, these vitamin E forms are much stronger than αT. Further, recent research revealed novel anti-inflammatory and anticancer effects of vitamin E metabolites including 13'-carboxychromanols. This review focuses on anti-proliferation and induction of death in cancer cells by vitamin E forms and metabolites, and discuss mechanisms underlying these anticancer activities. The existing in vitro and in vivo evidence indicates that γT, δT, tocotrienols and 13'-carboxychromanols have anti-cancer activities via modulating key signaling or mediators that regulate cell death and tumor progression, such as eicosanoids, NF-κB, STAT3, PI3K, and sphingolipid metabolism. These results provide useful scientific rationales and mechanistic understanding for further translation of basic discoveries to the clinic with respect to potential use of these vitamin E forms and metabolites for cancer prevention and therapy. © 2018 IUBMB Life, 71(4):495-506, 2019.
Collapse
Affiliation(s)
- Qing Jiang
- Department of Nutrition Science, Purdue University, West Lafayette, Indiana, 47907, USA
| |
Collapse
|
66
|
Abstract
Vitamin E is a lipid soluble vitamin comprising of eight natural isoforms, namely, α, β, δ, γ isoforms of tocopherol and α, β, δ, γ isoforms of tocotrienol. Many studies have been performed to elucidate its role in cancer. Until last decade, major focus was on alpha tocopherol and its anticancer effects. However, major clinical trials using alpha-tocopherol like SELECT trial and ATBC trial did not yield meaningful results. Hence there was a shift of focus to gamma-tocopherol, delta-tocopherol and tocotrienol. Unlike alpha-tocopherol, gamma-tocopherol and delta-tocopherol can scavenge reactive nitrogen species in addition to reactive oxygen species. Antiangiogenic effect, inhibition of HMG CoA reductase enzyme and inhibition of NF-κB pathway make the anti-cancer effects of tocotrienols unique compared to other vitamin E isoforms. Preclinical research on non-alpha tocopherol isoforms of vitamin E showed promising data on their anticancer effects. In this review, we deal with the current understanding on the potential mechanisms involved in the anticancer effects of vitamin E and the controversies in this field over last three decades. We also highlight the need to conduct further research on the anticancer effects of non-alpha-tocopherol isoforms in larger population and clinical setting.
Collapse
Affiliation(s)
- Annette Abraham
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Ajoe John Kattoor
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Tom Saldeen
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Jawahar L Mehta
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| |
Collapse
|
67
|
Ma X, Tan YT, Yang Y, Gao J, Li HL, Zheng W, Lan Q, Rothman N, Shu XO, Xiang YB. Pre-diagnostic urinary 15-F 2t -isoprostane level and liver cancer risk: Results from the Shanghai Women's and Men's Health Studies. Int J Cancer 2018; 143:1896-1903. [PMID: 29756347 DOI: 10.1002/ijc.31591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/27/2018] [Accepted: 04/03/2018] [Indexed: 12/14/2022]
Abstract
Oxidative stress has been hypothesized to affect cancer development via various mechanisms, but the evidence from human is limited and inconclusive. 15-F2t -isoprostane (15-F2t -IsoP) is an accurate marker of oxidative stress in humans. Recent studies showed that the evidence of urinary 15-F2t -IsoP level correlating cancer risk is conflicting. We conducted a case-control study nested within two population-based cohort studies. Pre-diagnosis urine samples, collected at cohort enrollment, from 363 incident liver cancer cases and 725 individually matched controls, were used to determine the level of 15-F2t -IsoP by enzyme-linked immunosorbent assay. Conditional logistic regression model was used to estimate the odds ratio to measure the association between the urinary 15-F2t -IsoP level and liver cancer risk. We found that higher pre-diagnostic urinary 15-F2t -IsoP level was associated with an increased liver cancer risk, with an adjusted OR in males (OR4th vs. 1st quartile = 8.84, 95% CI 2.74-28.60), which was significantly higher than those in females (OR4th vs. 1st quartile = 1.75, 95% CI 0.70-4.42). HBsAg carriers with higher 15-F2t -IsoP had a significantly increased liver cancer risk (ORfemale = 59.04, 95% CI 12.26, 284.30; ORmale = 92.55, 95% CI 34.83, 245.96) compared to non-carriers with lower 15-F2t -IsoP. High urinary 15-F2t -IsoP level was associated with high liver cancer risk, suggesting that 15-F2t -IsoP may be a promising biomarker for liver cancer risk. The result suggests that people with sero-positive HBsAg and higher level of 15-F2t -IsoP might be given a higher priority on future surveillance program of liver cancer.
Collapse
Affiliation(s)
- Xiao Ma
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yu-Ting Tan
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yang Yang
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jing Gao
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hong-Lan Li
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt University Medicine Center, Nashville, TN
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, MD
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, MD
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt University Medicine Center, Nashville, TN
| | - Yong-Bing Xiang
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
68
|
Catani MV, Gasperi V, Bisogno T, Maccarrone M. Essential Dietary Bioactive Lipids in Neuroinflammatory Diseases. Antioxid Redox Signal 2018; 29:37-60. [PMID: 28637354 PMCID: PMC5984567 DOI: 10.1089/ars.2016.6958] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Under physiological conditions, neurons and glia are in a healthy, redox-balanced environment; when injury perturbs this equilibrium, a neuroinflammatory state is established by activated microglia that triggers pro-inflammatory responses and alters the oxidant/antioxidant balance, thus leading to neuronal loss and neurodegeneration. In neurodegenerative diseases (such as Alzheimer's disease, Parkinson's disease, amyothrophic lateral sclerosis, and multiple sclerosis), the brain is in a constitutively self-sustaining cycle of inflammation and oxidative stress that prompts and amplifies brain damage. Recent Advances: Recently, an increasing amount of scientific data highlight the ability of specific nutrients to cross the blood-brain barrier, and to modulate inflammatory and oxidative pathways. Therefore, nutritional approaches may contribute to restore the lost equilibrium among factors accounting for neurodegeneration. CRITICAL ISSUES Herein, we critically examine how essential lipids (including fatty acids, liposoluble vitamins and phytosterols) might contribute to accelerate or prevent the onset and progression of such pathologies. In particular, we highlight that experimental and clinical findings, although promising, are still inadequate to draw definitive conclusions. FUTURE DIRECTIONS More research is warranted in order to establish the real impact of lipid intake on brain health, especially when redox balance and inflammatory responses have been already compromised. In the future, it would be hoped to gain a detailed knowledge of chemical modifications and dynamic properties of such nutrients, before planning to exploit them as potential therapeutics. Antioxid. Redox Signal. 29, 37-60.
Collapse
Affiliation(s)
- Maria Valeria Catani
- Department of Experimental Medicine and Surgery, Tor Vergata University of Rome, Rome, Italy
| | - Valeria Gasperi
- Department of Experimental Medicine and Surgery, Tor Vergata University of Rome, Rome, Italy
| | - Tiziana Bisogno
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
- Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy
| | - Mauro Maccarrone
- Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy
- European Center for Brain Research/Santa Lucia Foundation IRCCS, Rome, Italy
| |
Collapse
|
69
|
Niero G, Penasa M, Berard J, Kreuzer M, Cassandro M, De Marchi M. Technical note: Development and validation of an HPLC method for the quantification of tocopherols in different types of commercial cow milk. J Dairy Sci 2018; 101:6866-6871. [PMID: 29885892 DOI: 10.3168/jds.2017-14187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/03/2018] [Indexed: 02/04/2023]
Abstract
In the present study, a methanol-fluorescence-based HPLC method was validated for its use to quantify α-tocopherol and γ-tocopherol in raw milk, whole UHT milk, partially skimmed UHT milk, whole pasteurized milk, and partially skimmed pasteurized milk. Repeatability and reproducibility, calculated as relative standard deviation of 10 measurements within the same day and 30 measurements across 3 d, respectively, were always below 5% for both tocopherols concentrations and retention times. Recovery was assessed through 3 spiking levels and it ranged from 89 to 107%. The method was able to detect the expected declines in tocopherols in milk exposed to UHT or skimming treatments. Vitamin E, calculated as the sum of α-tocopherol and γ-tocopherol, was similar in whole pasteurized and raw milk, averaging 1.57 and 1.56 mg/L, respectively, followed by whole UHT (1.33 mg/L), partially skimmed pasteurized (0.77 mg/L), and partially skimmed UHT milk (0.61 mg/L).
Collapse
Affiliation(s)
- G Niero
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
| | - M Penasa
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - J Berard
- ETH Zurich, Institute of Agricultural Sciences, Universitätstrasse 2, 8092 Zurich, Switzerland; ETH Zurich, AgroVet-Strickhof, Eschikon 27, 8315 Lindau, Switzerland
| | - M Kreuzer
- ETH Zurich, Institute of Agricultural Sciences, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - M Cassandro
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - M De Marchi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| |
Collapse
|
70
|
Gazzano E, Lazzarato L, Rolando B, Kopecka J, Guglielmo S, Costamagna C, Chegaev K, Riganti C. Mitochondrial Delivery of Phenol Substructure Triggers Mitochondrial Depolarization and Apoptosis of Cancer Cells. Front Pharmacol 2018; 9:580. [PMID: 29915539 PMCID: PMC5994430 DOI: 10.3389/fphar.2018.00580] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/15/2018] [Indexed: 12/16/2022] Open
Abstract
Antitumor chemotherapy remains one of the most important challenge of the medicinal chemistry. Emerging research in chemotherapy is focused on exploiting the biochemical differences between cancer cell and normal cell metabolism in order to reduce the side effects and increase antitumor therapy efficacy. The higher mitochondrial transmembrane potential of cancer cells compared to not-transformed cells favors the intra-mitochondrial accumulation of cationic drugs in the former. This feature could be exploited to allow selective delivery of antineoplastic drugs to the cancer cells. In this work we designed and synthetized phenol derivatives joined to the triphenylphosphonium (TPP) cation, a well-known vector for mitochondrial targeting. Two designed phenol TPP-derivatives 1 and 2 show remarkable cytotoxic activity against different cancer cell lines, but were less toxic against normal cells. The differential cytotoxicity relied on the higher mitochondrial biogenesis and oxidative-phosphorylation metabolism of the former. By reducing mitochondrial mass and energetic metabolism, and increasing at the same time the levels of intra-mitochondrial reactive oxygen species, phenol TPP-derivatives 1 and 2 induced mitochondria depolarization and triggered a caspase 9/3-mediated apoptosis, limited to cancer cells. This work provides the rationale to further develop phenol TPP-derivatives targeting mitochondria as new and selective anticancer tools.
Collapse
Affiliation(s)
- Elena Gazzano
- Department of Oncology, University of Turin, Turin, Italy
| | - Loretta Lazzarato
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Barbara Rolando
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Joanna Kopecka
- Department of Oncology, University of Turin, Turin, Italy
| | - Stefano Guglielmo
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | | | - Konstantin Chegaev
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Chiara Riganti
- Department of Oncology, University of Turin, Turin, Italy
| |
Collapse
|
71
|
Development of Colorectal-Targeted Dietary Supplement Tablets Containing Natural Purple Rice Bran Oil as a Colorectal Chemopreventive. Nutrients 2018; 10:nu10040444. [PMID: 29617306 PMCID: PMC5946229 DOI: 10.3390/nu10040444] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 04/01/2018] [Accepted: 04/02/2018] [Indexed: 12/29/2022] Open
Abstract
Colorectal cancer occurs due to various factors. The important risks are dietary lifestyle and inflammatory bowel diseases, such as Crohn’s disease and ulcerative colitis. It has been found that the inhibitory enzyme cyclooxygenase-2 (COX-2) in the colorectal region can potentially reduce the risk of colorectal cancer. The present study investigated rice bran oil from natural purple rice bran, which exhibits antioxidant and anti-inflammatory activity. This study aimed to evaluate the bioactive compound content of natural purple rice bran oil (NPRBO) derived from native Thai purple rice and the anti-inflammatory activity of NPRBO in colorectal cancer cells, and to develop a colorectal delivery platform in the form of film-coated tablets. NPRBO from the rice bran of five different Thai purple rice cultivars, namely Khao’ Gam Leum-Phua (KGLP), Khao’ Gam Boung (KGB), Khao’ Gam Thor (KGT), Khao’ Gam Pah E-Kaw (KGPEK), and Khao’ Niaw Dam (KND), were extracted using the supercritical carbon dioxide extraction technique. The amount of γ-oryzanol (ORY), tocotrienols, and tocopherols present in NPRBOs and the in vitro anti-inflammatory activity of NPRBO were investigated. The highest anti-inflammatory NPRBO was transformed into a dry and free-flowing powder by liquisolid techniques. Then, it was compressed into core tablets and coated with Eudragit®L100 and Eudragit® NE30D. The in vitro release study of the film-coated NPRBO tablets was performed in three-phase simulated gastrointestinal media. The cultivar KGLP was superior to the other samples in terms of the ORY, tocotrienol and tocopherol contents and anti-inflammatory activity. Aerosil® was the most suitable absorbent for transforming NPRBO into a free-flowing powder and was used to prepare the NPRBO core tablets. The in vitro KGLP-NPRBO film-coated tablet release profile showed that no ORY was released at gastric pH while 85% of ORY was released at pH 7.4 after 6 h; this would be expected to occur in the colorectal area. Therefore, this study demonstrates the potential of KGLP-NPRBO to prevent colorectal cancer via a specific colorectal dietary supplement delivery system.
Collapse
|
72
|
Falcão ADO, Speranza P, Ueta T, Mateus Martins I, Alves Macedo G, Alves Macedo J. Antioxidant Potential and Modulatory Effects of Restructured Lipids from the Amazonian Palms on
Liver Cells. Food Technol Biotechnol 2018. [PMID: 29540989 DOI: 10.17113/ftb.55.04.17.5157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Enzymatic interesterification is used to manipulate oil and fat in order to obtain improved restructured lipids with desired technological properties. However, with raw materials containing significant amounts of bioactive compounds, the influence of this enzymatic process on the bioactivity of the final product is still not clear. Thus, the aim of this study is to evaluate the antioxidant potential and modulatory effects of two raw materials from the Amazonian area, buriti oil and murumuru fat, before and after lipase interesterification, on human hepatoma cells (HepG2). The results indicate that minor bioactive compounds naturally found in the raw materials and their antioxidant capacity are preserved after enzymatic interesterification, and that the restructured lipids modulate HepG2 endogenous antioxidant enzyme.
Collapse
Affiliation(s)
- Andrea de Oliveira Falcão
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| | - Paula Speranza
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| | - Tatiane Ueta
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| | - Isabela Mateus Martins
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| | - Gabriela Alves Macedo
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| | - Juliana Alves Macedo
- Department of Food and Nutrition, School of Food Engineering, University of Campinas,
Rua Monteiro Lobato 80, CEP 13083-970, Campinas, SP, Brazil
| |
Collapse
|
73
|
Đurđević S, Šavikin K, Živković J, Böhm V, Stanojković T, Damjanović A, Petrović S. Antioxidant and cytotoxic activity of fatty oil isolated by supercritical fluid extraction from microwave pretreated seeds of wild growing Punica granatum L. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
74
|
Cheikhyoussef N, Kandawa-Schulz M, Böck R, de Koning C, Cheikhyoussef A, Hussein AA. Characterization of Schinziophyton rautanenii (Manketti) nut oil from Namibia rich in conjugated fatty acids and tocopherol. J Food Compost Anal 2018. [DOI: 10.1016/j.jfca.2017.12.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
75
|
Kim B, Kim HH, Lee ZH. α-Tocopheryl Succinate Inhibits Osteolytic Bone Metastasis of Breast Cancer by Suppressing Migration of Cancer Cells and Receptor Activator of Nuclear Factor-κB Ligand Expression of Osteoblasts. J Bone Metab 2018; 25:23-33. [PMID: 29564303 PMCID: PMC5854820 DOI: 10.11005/jbm.2018.25.1.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/16/2018] [Accepted: 01/23/2018] [Indexed: 02/06/2023] Open
Abstract
Background Breast cancer is one of the most common cancers affecting women and has a high incidence of bone metastasis, causing osteolytic lesions. The elevated expression of receptor activator of nuclear factor-κB ligand (RANKL) in cancer activates osteoclasts, leading to bone destruction. We previously reported that α-tocopheryl succinate (αTP-suc) inhibited interleukin-1-induced RANKL expression in osteoblasts. Here, we examined the effect of αTP-suc on osteolytic bone metastasis in breast cancer. Methods To examine the effect of αTP-suc on the metastatic capacity of breast cancer, MDA-MB-231-FL cells were injected into the left cardiac ventricle of BALB/c nude mice along with intraperitoneal injection of αTP-suc. The mice were then analyzed by bioluminescence imaging. To investigate the effect of αTP-suc on osteolysis, 4T1 cells were directly injected into the femur of BALB/c mice along with intraperitoneal injection of αTP-suc. Microcomputed tomography analysis and histomorphometric analysis of the femora were performed. Results αTP-suc inhibited cell migration and cell growth of 4T1 cells. In line with these results, bone metastasis of MDA-MB-231-FL cells was reduced in mice injected with αTP-suc. In addition, αTP-suc decreased osteoclastogenesis by inhibiting 4T1-induced RANKL expression in osteoblasts. Consistent with these results, 4T1-induced bone destruction was ameliorated by αTP-suc, with in vivo analysis showing reduced tumor burden and osteoclast numbers. Conclusions Our findings suggest that αTP-suc may be efficiently utilized to prevent and treat osteolytic bone metastasis of breast cancer with dual effects.
Collapse
Affiliation(s)
- Bongjun Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University College of Medicine, Seoul, Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University College of Medicine, Seoul, Korea
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
76
|
Wang H, Yang X, Liu A, Wang G, Bosland MC, Yang CS. δ-Tocopherol inhibits the development of prostate adenocarcinoma in prostate specific Pten-/- mice. Carcinogenesis 2018; 39:158-169. [PMID: 29121168 PMCID: PMC5862254 DOI: 10.1093/carcin/bgx128] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The PTEN/PI3K/AKT axis plays a critical role in regulating cell growth, differentiation and survival. Activation of this signaling pathway is frequently found in human cancers. Our previous studies demonstrated that δ-tocopherol (δ-T) attenuates the activation of AKT by growth factor in prostate cancer cell lines, leading to inhibition of proliferation and induction of apoptosis. Herein, we investigated whether δ-T inhibits the development of prostate adenocarcinoma in prostate-specific Pten-/- (Ptenp-/-) mice in which the activation of AKT is the major driving force for tumorigenesis. By feeding Ptenp-/- mice with AIN93M or 0.2% δ-T supplemented diet starting at the age of 6 or 12 weeks, we found that δ-T treatment reduced prostate adenocarcinoma multiplicity at the age of 40 weeks by 53.3 and 42.7%, respectively. Immunohistochemical (IHC) analysis demonstrated that the phosphorylation of AKT (T308) was reduced in the prostate of the mice administered the δ-T diet. Consistently, proliferation was reduced and apoptosis was increased in prostate lesions of mice on the δ-T diet. Oxidative stress, as determined by IHC staining of 8-OH-dG, was not altered during prostate tumorigenesis, nor was it affected by administration of δ-T. In contrast, α-tocopherol (α-T) at 0.2% in the diet did not affect prostate adenocarcinoma multiplicity in the Ptenp-/- mice. This finding is consistent with data from our previous study that δ-T, but not α-T, inhibits the activation of AKT and the growth of prostate cancer cells. Together, these results demonstrate that δ-T inhibits the development of prostate adenocarcinoma in Ptenp-/- mice, mainly through inhibition of AKT activation.
Collapse
Affiliation(s)
- Hong Wang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Xu Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Anna Liu
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Guocan Wang
- Department of Cancer Biology, MD Anderson Cancer Center, Houston, USA
| | - Maarten C Bosland
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, USA
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| |
Collapse
|
77
|
Narita S, Saito E, Sawada N, Shimazu T, Yamaji T, Iwasaki M, Ishihara J, Takachi R, Shibuya K, Inoue M, Tsugane S. Dietary consumption of antioxidant vitamins and subsequent lung cancer risk: The Japan Public Health Center-based prospective study. Int J Cancer 2018; 142:2441-2460. [PMID: 29355932 DOI: 10.1002/ijc.31268] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 12/13/2022]
Abstract
While many epidemiological studies have studied the association between lung cancer risk and fruits and vegetable consumption (the major sources of antioxidant vitamins), only a few have investigated the direct association with antioxidants in consideration of cancer subtypes and smoking status. Here, we examined the association between consumption of antioxidant vitamins and lung cancer risk in one of the largest prospective cohort studies in Japan. We investigated the association of dietary antioxidant vitamins intake, namely retinol, vitamin C, vitamin E, α-carotene, and β-carotene and subsequent incidence of lung cancer among 38,207 men and 41,498 women in the Japan Public Health Center-based prospective study. Cox proportional hazard regression was performed with adjustment for potential confounders and by strata of cancer subtypes and smoking status. Antioxidant and other dietary intakes were assessed using a food frequency questionnaire (FFQ). During 1,233,096 person-years of follow-up between 1995 and 2013, a total of 1,690 lung cancer cases were newly diagnosed. In a multivariate regression model, while higher retinol intake was positively associated with overall lung cancer risk in men (HR 1.26; 95% CI 1.05-1.51; ptrend = 0.003), the estimates were more evident with small cell carcinoma (HR 1.92; 95% CI 1.13-3.24; ptrend < 0.001). Null associations were observed for other antioxidant vitamins. Our prospective study suggests that higher consumption of retinol may be associated with an increased risk of lung cancer in men, especially with small cell carcinoma, although confirmation is required.
Collapse
Affiliation(s)
- Saki Narita
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Eiko Saito
- Division of Cancer Statistics and Integration, Center for Cancer Control and Information Services, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Taiki Yamaji
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Junko Ishihara
- Department of Food and Life Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Ribeka Takachi
- Department of Food Science and Nutrition, Faculty of Human Life and Environment, Nara Women's University, Kitauoya Higashimachi, Nara, 630-8506, Japan
| | - Kenji Shibuya
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | | |
Collapse
|
78
|
Birringer M, Siems K, Maxones A, Frank J, Lorkowski S. Natural 6-hydroxy-chromanols and -chromenols: structural diversity, biosynthetic pathways and health implications. RSC Adv 2018; 8:4803-4841. [PMID: 35539527 PMCID: PMC9078042 DOI: 10.1039/c7ra11819h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/18/2018] [Indexed: 01/26/2023] Open
Abstract
We present the first comprehensive and systematic review on the structurally diverse toco-chromanols and -chromenols found in photosynthetic organisms, including marine organisms, and as metabolic intermediates in animals. The focus of this work is on the structural diversity of chromanols and chromenols that result from various side chain modifications. We describe more than 230 structures that derive from a 6-hydroxy-chromanol- and 6-hydroxy-chromenol core, respectively, and comprise di-, sesqui-, mono- and hemiterpenes. We assort the compounds into a structure-activity relationship with special emphasis on anti-inflammatory and anti-carcinogenic activities of the congeners. This review covers the literature published from 1970 to 2017.
Collapse
Affiliation(s)
- Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences Leipziger Straße 123 36037 Fulda Germany
| | - Karsten Siems
- AnalytiCon Discovery GmbH Hermannswerder Haus 17 14473 Potsdam Germany
| | - Alexander Maxones
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences Leipziger Straße 123 36037 Fulda Germany
| | - Jan Frank
- Institute of Biological Chemistry and Nutrition, University of Hohenheim Garbenstr. 28 70599 Stuttgart Germany
| | - Stefan Lorkowski
- Institute of Nutrition, Friedrich Schiller University Jena Dornburger Str. 25 07743 Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig Germany
| |
Collapse
|
79
|
Lee MJ, Feng W, Yang L, Chen YK, Chi E, Liu A, Yang CS. Methods for efficient analysis of tocopherols, tocotrienols and their metabolites in animal samples with HPLC-EC. J Food Drug Anal 2018; 26:318-329. [PMID: 29389570 PMCID: PMC9332665 DOI: 10.1016/j.jfda.2017.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 12/14/2022] Open
Abstract
Tocopherols and tocotrienols, collectively known as vitamin E, have received a great deal of attention because of their interesting biological activities. In the present study, we reexamined and improved previous methods of sample preparation and the conditions of high-performance liquid chromatography for more accurate quantification of tocopherols, tocotrienols and their major chain-degradation metabolites. For the analysis of serum tocopherols/tocotrienols, we reconfirmed our method of mixing serum with ethanol followed by hexane extraction. For the analysis of tissue samples, we improved our methods by extracting tocopherols/tocotrienols directly from tissue homogenate with hexane. For the analysis of total amounts (conjugated and unconjugated forms) of side-chain degradation metabolites, the samples need to be deconjugated by incubating with β-glucuronidase and sulfatase; serum samples can be directly used for the incubation, whereas for tissue homogenates a pre-deproteination step is needed. The present methods are sensitive, convenient and are suitable for the determination of different forms of vitamin E and their metabolites in animal and human studies. Results from the analysis of serum, liver, kidney, lung and urine samples from mice that had been treated with mixtures of tocotrienols and tocopherols are presented as examples.
Collapse
|
80
|
α-Tocopherol succinate enhances pterostilbene anti-tumor activity in human breast cancer cells in vivo and in vitro. Oncotarget 2017; 9:4593-4606. [PMID: 29435127 PMCID: PMC5796998 DOI: 10.18632/oncotarget.23390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/05/2017] [Indexed: 12/29/2022] Open
Abstract
Vitamin E (Vit. E) is considered an essential dietary nutrient for humans and animals. An enormous body of evidence indicates the biological and protective effects of Vit. E consumption. Tocopherol-associated protein (TAP) is a major tocopherol-binding protein affecting Vit. E stimulation and downstream signaling transduction. However, how Vit. E utilizes TAP as an anti-cancer mechanism remains unclear. Microarray analysis of signature gene profiles in breast cancer cells treated with α-tocopheryl succinate (α-TOS, a Vit. E isoform) resulted in cell cycle arrest and anti-cancer activity in breast cancer cells. Pterostilbene (PS), a natural dietary antioxidant found in blueberries, in combination with α-TOS synergistically maximized breast cancer cell growth inhibition by disrupting signal transduction, transcription factors and cell cycle proteins. In a xenograft mouse model, PS treatment with Vit. E inhibited breast tumor growth and cell invasion, which were evaluated using our recently developed circulating tumor cell (CTC) detection assay. Because dietary Vit. E and PS supplementation contributed to preventative and therapeutic effects in vitro and in vivo, this combination may benefit breast cancer therapy in the clinic.
Collapse
|
81
|
Das Gupta S, Patel M, Wahler J, Bak MJ, Wall B, Lee MJ, Lin Y, Shih WJ, Cai L, Yang CS, Suh N. Differential Gene Regulation and Tumor-Inhibitory Activities of Alpha-, Delta-, and Gamma-Tocopherols in Estrogen-Mediated Mammary Carcinogenesis. Cancer Prev Res (Phila) 2017; 10:694-703. [PMID: 28972008 PMCID: PMC5826717 DOI: 10.1158/1940-6207.capr-17-0190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/17/2017] [Accepted: 09/21/2017] [Indexed: 12/17/2022]
Abstract
Despite experimental evidence elucidating the antitumor activities of tocopherols, clinical trials with α-tocopherol (α-T) have failed to demonstrate its beneficial effects in cancer prevention. This study compared the chemopreventive efficacy of individual tocopherols (α-, δ-, and γ-T) and a γ-T-rich tocopherol mixture (γ-TmT) in the August-Copenhagen Irish (ACI) rat model of estrogen-mediated mammary cancer. Female ACI rats receiving 17β-estradiol (E2) implants were administered with 0.2% α-T, δ-T, γ-T, or γ-TmT for 30 weeks. Although α-T had no significant effects on mammary tumor growth in ACI rats, δ-T, γ-T, and γ-TmT reduced mammary tumor volume by 51% (P < 0.05), 60% (P < 0.01), and 59% (P < 0.01), respectively. Immunohistochemical analysis revealed that δ-T, γ-T, and γ-TmT reduced levels of the cell proliferation marker, proliferating cell nuclear antigen, in the rat mammary tumors. To gain further insight into the biological functions of different forms of tocopherols, RNA-seq analysis of the tumors was performed. Treatment with γ-T induced robust gene expression changes in the mammary tumors of ACI rats. Ingenuity Pathway Analysis identified "Cancer" as a top disease pathway and "Tumor growth" and "Metastasis" as the top signaling pathways modulated by γ-T. Although the results need further functional validation, this study presents an unbiased attempt to understand the differences between biological activities of individual forms of tocopherols at the whole transcriptome level. In conclusion, δ-T and γ-T have superior cancer preventive properties compared to α-T in the prevention of estrogen-mediated mammary carcinogenesis. Cancer Prev Res; 10(12); 694-703. ©2017 AACR.
Collapse
Affiliation(s)
- Soumyasri Das Gupta
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Misaal Patel
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Joseph Wahler
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Min Ji Bak
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Brian Wall
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Mao-Jung Lee
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Yong Lin
- Department of Biostatistics, Rutgers School of Public Health, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Weichung Joe Shih
- Department of Biostatistics, Rutgers School of Public Health, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Li Cai
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| |
Collapse
|
82
|
Chemical and phytochemical characterizations of argan oil (Argania spinosa L. skeels), olive oil (Olea europaea L. cv. Moroccan picholine), cactus pear (Opuntia megacantha salm-dyck) seed oil and cactus cladode essential oil. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9688-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
83
|
Abstract
Initial research on vitamin E and cancer has focused on α-tocopherol (αT), but recent clinical studies on cancer-preventive effects of αT supplementation have shown disappointing results, which has led to doubts about the role of vitamin E, including different vitamin E forms, in cancer prevention. However, accumulating mechanistic and preclinical animal studies show that other forms of vitamin E, such as γ-tocopherol (γT), δ-tocopherol (δT), γ-tocotrienol (γTE), and δ-tocotrienol (δTE), have far superior cancer-preventive activities than does αT. These vitamin E forms are much stronger than αT in inhibiting multiple cancer-promoting pathways, including cyclo-oxygenase (COX)- and 5-lipoxygenase (5-LOX)-catalyzed eicosanoids, and transcription factors such as nuclear transcription factor κB (NF-κB) and signal transducer and activator of transcription factor 3 (STAT3). These vitamin E forms, but not αT, cause pro-death or antiproliferation effects in cancer cells via modulating various signaling pathways, including sphingolipid metabolism. Unlike αT, these vitamin E forms are quickly metabolized to various carboxychromanols including 13'-carboxychromanols, which have even stronger anti-inflammatory and anticancer effects than some vitamin precursors. Consistent with mechanistic findings, γT, δT, γTE, and δTE, but not αT, have been shown to be effective for preventing the progression of various types of cancer in preclinical animal models. This review focuses on cancer-preventive effects and mechanisms of γT, δT, γTE, and δTE in cells and preclinical models and discusses current progress in clinical trials. The existing evidence strongly indicates that these lesser-known vitamin E forms are effective agents for cancer prevention or as adjuvants for improving prevention, therapy, and control of cancer.
Collapse
Affiliation(s)
- Qing Jiang
- Department of Nutrition Science, Purdue University, West Lafayette, IN
| |
Collapse
|
84
|
Zielonka J, Sikora A, Hardy M, Ouari O, Vasquez-Vivar J, Cheng G, Lopez M, Kalyanaraman B. Mitochondria-Targeted Triphenylphosphonium-Based Compounds: Syntheses, Mechanisms of Action, and Therapeutic and Diagnostic Applications. Chem Rev 2017; 117:10043-10120. [PMID: 28654243 PMCID: PMC5611849 DOI: 10.1021/acs.chemrev.7b00042] [Citation(s) in RCA: 951] [Impact Index Per Article: 135.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mitochondria are recognized as one of the most important targets for new drug design in cancer, cardiovascular, and neurological diseases. Currently, the most effective way to deliver drugs specifically to mitochondria is by covalent linking a lipophilic cation such as an alkyltriphenylphosphonium moiety to a pharmacophore of interest. Other delocalized lipophilic cations, such as rhodamine, natural and synthetic mitochondria-targeting peptides, and nanoparticle vehicles, have also been used for mitochondrial delivery of small molecules. Depending on the approach used, and the cell and mitochondrial membrane potentials, more than 1000-fold higher mitochondrial concentration can be achieved. Mitochondrial targeting has been developed to study mitochondrial physiology and dysfunction and the interaction between mitochondria and other subcellular organelles and for treatment of a variety of diseases such as neurodegeneration and cancer. In this Review, we discuss efforts to target small-molecule compounds to mitochondria for probing mitochondria function, as diagnostic tools and potential therapeutics. We describe the physicochemical basis for mitochondrial accumulation of lipophilic cations, synthetic chemistry strategies to target compounds to mitochondria, mitochondrial probes, and sensors, and examples of mitochondrial targeting of bioactive compounds. Finally, we review published attempts to apply mitochondria-targeted agents for the treatment of cancer and neurodegenerative diseases.
Collapse
Affiliation(s)
- Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Adam Sikora
- Institute of Applied Radiation Chemistry, Lodz University of Technology, ul. Wroblewskiego 15, 93-590 Lodz, Poland
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Olivier Ouari
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Jeannette Vasquez-Vivar
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Gang Cheng
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Marcos Lopez
- Translational Biomedical Research Group, Biotechnology Laboratories, Cardiovascular Foundation of Colombia, Carrera 5a No. 6-33, Floridablanca, Santander, Colombia, 681003
- Graduate Program of Biomedical Sciences, Faculty of Health, Universidad del Valle, Calle 4B No. 36-00, Cali, Colombia, 760032
| | - Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| |
Collapse
|
85
|
Remely M, Ferk F, Sterneder S, Setayesh T, Kepcija T, Roth S, Noorizadeh R, Greunz M, Rebhan I, Wagner KH, Knasmüller S, Haslberger A. Vitamin E Modifies High-Fat Diet-Induced Increase of DNA Strand Breaks, and Changes in Expression and DNA Methylation of Dnmt1 and MLH1 in C57BL/6J Male Mice. Nutrients 2017; 9:nu9060607. [PMID: 28613268 PMCID: PMC5490586 DOI: 10.3390/nu9060607] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/18/2017] [Accepted: 05/30/2017] [Indexed: 02/07/2023] Open
Abstract
Obesity is associated with low-grade inflammation, increased ROS production and DNA damage. Supplementation with antioxidants might ameliorate DNA damage and support epigenetic regulation of DNA repair. C57BL/6J male mice were fed a high-fat (HFD) or a control diet (CD) with and without vitamin E supplementation (4.5 mg/kg body weight (b.w.)) for four months. DNA damage, DNA promoter methylation and gene expression of Dnmt1 and a DNA repair gene (MLH1) were assayed in liver and colon. The HFD resulted in organ specific changes in DNA damage, the epigenetically important Dnmt1 gene, and the DNA repair gene MLH1. Vitamin E reduced DNA damage and showed organ-specific effects on MLH1 and Dnmt1 gene expression and methylation. These results suggest that interventions with antioxidants and epigenetic active food ingredients should be developed as an effective prevention for obesity—and oxidative stress—induced health risks.
Collapse
Affiliation(s)
- Marlene Remely
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Franziska Ferk
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria.
| | - Sonja Sterneder
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Tahereh Setayesh
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria.
| | - Tatjana Kepcija
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Sylvia Roth
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Rahil Noorizadeh
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria.
| | - Martina Greunz
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Irene Rebhan
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Karl-Heinz Wagner
- Department of Nutritional Sciences, University Vienna, 1010 Vienna, Austria.
| | - Siegfried Knasmüller
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria.
| | | |
Collapse
|
86
|
Datta M, Shaw EG, Lesser GJ, Case LD, Vitolins MZ, Schneider C, Frizzell B, Sullivan C, Lively M, Franzmann E, Hu JJ. A Randomized Double-Blind Placebo-Controlled Trial of Fruit and Vegetable Concentrates on Intermediate Biomarkers in Head and Neck Cancer. Integr Cancer Ther 2017; 17:115-123. [PMID: 28102098 PMCID: PMC5501769 DOI: 10.1177/1534735416684947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background. Head and neck cancer (HNC) patients are at an
increased risk for developing second primary tumors (SPTs). Diets rich in fruits
and vegetables (FVs) may lower HNC risk. FV concentrates may offer a potential
alternative to increasing FV intake. Methods. We conducted a
randomized, double-blind, placebo-controlled trial to evaluate whether Juice
PLUS+ (JP; a commercial product with multiple FV concentrates) has an effect on
p27 and Ki-67, biomarkers associated with the risk of SPTs. During 2004-2008, we
randomized 134 HNC patients to 12 weeks of JP (n = 72) or placebo (n = 62). Oral
cavity mucosal biopsies and whole blood were obtained at baseline and after 12
weeks. All participants were given the opportunity to receive JP for 5 years
following the end of the intervention period, and they were followed yearly for
the development of SPTs. Results. After 12 weeks, patients on
JP had significantly higher serum α-carotene (P = .009),
β-carotene (P < .0001), and lutein (P =
.003) but did not differ significantly in p27 (P = .23) or
Ki-67 (P = .95). JP use following the initial 12-week trial was
not significantly associated with SPT prevention. Conclusions.
Despite increased serum micronutrient levels, our results do not suggest a
clinical benefit of JP in HNC patients. Future studies should focus on longer
intervention periods and/or modified supplement formulations with demonstrated
chemopreventive properties.
Collapse
Affiliation(s)
| | - Edward G Shaw
- 2 Wake Forest Comprehensive Cancer Center, Winston-Salem, NC, USA
| | - Glenn J Lesser
- 3 Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - L Douglas Case
- 3 Wake Forest School of Medicine, Winston-Salem, NC, USA
| | | | | | - Bart Frizzell
- 3 Wake Forest School of Medicine, Winston-Salem, NC, USA
| | | | - Mark Lively
- 3 Wake Forest School of Medicine, Winston-Salem, NC, USA
| | | | - Jennifer J Hu
- 5 University of Miami School of Medicine, Miami, FL, USA
| |
Collapse
|
87
|
Chen JX, Liu A, Lee MJ, Wang H, Yu S, Chi E, Reuhl K, Suh N, Yang CS. δ- and γ-tocopherols inhibit phIP/DSS-induced colon carcinogenesis by protection against early cellular and DNA damages. Mol Carcinog 2017; 56:172-183. [PMID: 27175800 PMCID: PMC5647579 DOI: 10.1002/mc.22481] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/18/2016] [Accepted: 03/01/2016] [Indexed: 12/25/2022]
Abstract
Tocopherols, the major forms of vitamin E, are a family of fat-soluble compounds that exist in alpha (α-T), beta (β-T), gamma (γ-T), and delta (δ-T) variants. A cancer preventive effect of vitamin E is suggested by epidemiological studies. However, past animal studies and human intervention trials with α-T, the most active vitamin E form, have yielded disappointing results. A possible explanation is that the cancer preventive activity of α-T is weak compared to other tocopherol forms. In the present study, we investigated the effects of δ-T, γ-T, and α-T (0.2% in diet) in a novel colon cancer model induced by the meat-derived dietary carcinogen, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) and promoted by dextran sodium sulfate (DSS)-induced colitis in CYP1A-humanized (hCYP1A) mice. PhIP/DSS treatments induced multiple polypoid tumors, mainly tubular adenocarcinomas, in the middle to distal colon of the hCYP1A mice after 10 wk. Dietary supplementation with δ-T and γ-T significantly reduced colon tumor formation and suppressed markers of oxidative and nitrosative stress (i.e., 8-oxo-dG and nitrotyrosine) as well as pro-inflammatory mediators (i.e., NF-κB p65 and p-STAT3) in tumors and adjacent tissues. By administering δ-T at different time periods, we obtained results suggesting that the inhibitory effect of δ-T against colon carcinogenesis is mainly due to protection against early cellular and DNA damages caused by PhIP. α-T was found to be ineffective in inhibiting colon tumors and less effective in attenuating the molecular changes. Altogether, we demonstrated strong cancer preventive effects of δ-T and γ-T in a physiologically relevant model of human colon cancer. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Jayson X. Chen
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Anna Liu
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Mao-Jung Lee
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Hong Wang
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Siyuan Yu
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Eric Chi
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
| | - Kenneth Reuhl
- Department of Pharmacology and Toxicology, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Nanjoo Suh
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
- Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Chung S. Yang
- Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, New Jersey
- Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| |
Collapse
|
88
|
Shin J, Yang SJ, Lim Y. Gamma-tocopherol supplementation ameliorated hyper-inflammatory response during the early cutaneous wound healing in alloxan-induced diabetic mice. Exp Biol Med (Maywood) 2016; 242:505-515. [PMID: 28211759 DOI: 10.1177/1535370216683836] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Delayed wound healing is one of the major diabetic complications. During wound healing process, the early inflammatory stage is important for better prognosis. One of antioxidant nutrient, gamma-tocopherol (GT) is considered to regulate inflammatory conditions. This study investigated the effect of GT supplementation on mechanism associated with inflammation, oxidative stress, and apoptosis during early cutaneous wound healing in diabetic mice. Diabetes was induced by alloxan injection in ICR mice. All mice were divided into three groups: non-diabetic control mice (CON), diabetic control mice (DMC), and diabetic mice supplemented with GT (GT). After two weeks of GT supplementation, excisional wounds were made by biopsy punches (4 mm). Diabetic mice showed increases in fasting blood glucose (FBG) level, hyper-inflammatory response, oxidative stress, and delayed wound closure rate compared to non-diabetic mice. However, GT supplementation reduced FBG level and accelerated wound closure rate by regulation of inflammatory response-related proteins such as nuclear factor kappa B, interleukin-1β, tumor necrosis factor-α, and c-reactive protein, and oxidative stress-related markers including nuclear factor (erythroid derived 2)-like 2, NAD(P)H dehydrogenase quinone1, heme oxygenase-1, manganese superoxide dismutase, catalase and glutathione peroxidase and apoptosis-related markers such as sirtuin-1, peroxisome proliferator-activated receptor gamma coactivator 1- α, and p53 in diabetic mice. Taken together, GT would be a potential therapeutic to prevent diabetes-induced delayed wound healing by regulation of inflammatory response, apoptosis, and oxidative stress. Impact statement Gamma tocopherol has shown ameliorative effect on diabetic wound healing by regulation of inflammation, oxidative stress, and apoptosis demonstrated by nuclear factor kappa B, nuclear factor (erythroid derived 2)-like 2, and sirtuin-1.
Collapse
Affiliation(s)
- Jihyun Shin
- 1 Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
| | - Soo Jin Yang
- 2 Department of Food and Nutrition, Seoul Women's University, Seoul 01797, Korea
| | - Yunsook Lim
- 1 Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
| |
Collapse
|
89
|
Rao BV, Kaki SS, Jabeen T, Reddy JR, Ram Mohan M, Anjaneyulu E, Prasad RB. Isolation and physico-chemical characterization of Butea parviflora seed oil. GRASAS Y ACEITES 2016. [DOI: 10.3989/gya.0334161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
90
|
Yang CS, Chen JX, Wang H, Lim J. Lessons learned from cancer prevention studies with nutrients and non-nutritive dietary constituents. Mol Nutr Food Res 2016; 60:1239-50. [PMID: 26865098 PMCID: PMC4933959 DOI: 10.1002/mnfr.201500766] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/15/2016] [Accepted: 01/15/2016] [Indexed: 12/31/2022]
Abstract
Epidemiological studies have observed the association between dietary patterns and the risk of certain types of cancer. Extensive studies have been conducted on the cancer preventive activities of constituents from food and beverages. While laboratory research has shown impressive and promising results, such promising cancer preventive activities have not been demonstrated in many human intervention trials. This article analyzes the major differences between these different types of studies and the limitations of these studies. Animal and cell line studies usually use optimal conditions in order to demonstrate the hypothesized effects, sometimes without considering the human relevance. On the other hand, some clinical trials were designed without a good understanding of the biochemical and pharmacological properties of the agents used. Lessons learned from these studies will be illustrated using vitamin E, β-carotene and selenium as examples for nutrients, and green tea polyphenols as an example for non-nutritive dietary constituents. From the lessons learned, we believe that more interdisciplinary collaboration and integration of laboratory and human studies would effectively advance the field of cancer prevention.
Collapse
Affiliation(s)
- Chung S. Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Jayson X. Chen
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Hong Wang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Justin Lim
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| |
Collapse
|
91
|
Punvittayagul C, Sankam P, Taya S, Wongpoomchai R. Anticlastogenicity and Anticarcinogenicity of Purple Rice Extract in Rats. Nutr Cancer 2016; 68:646-53. [PMID: 27115481 DOI: 10.1080/01635581.2016.1158289] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oryza sativa L. var. indica cv. Kum Doi Saket is a pigmented rice variety grown in northern Thailand. Our previous study found that the methanol extract of purple rice seed had the highest level of antimutagenicity in a Salmonella mutation assay. The present study was designed to evaluate its in vivo anticlastogenic and anticarcinogenic potentials. The purple rice extract had no acute toxicity on rats. The oral administration of 1,000 mg/kg body weight (bw) of the extract for 28 days did not increase the number of micronucleated hepatocytes. Interestingly, it significantly reduced the amount of micronucleus formation in the liver of diethylnitrosamine (DEN)-treated rats. The inhibitory mechanism involved the induction of hepatic glutathione S-transferase (GST) activity. In addition, oral administration of 500 mg/kg bw extract for 10 weeks significantly decreased the number of hepatic GST placental form positive foci, but did not modulate the number of colonic aberrant crypt foci in DEN- and dimethylhydrazine-initiated rats. In conclusion, the methanol extract of purple rice seed showed no toxicity, clastogenicity, or carcinogenicity in laboratory rats. It did display chemopreventive activity against the early stages of rat hepatocarcinogenesis.
Collapse
Affiliation(s)
- Charatda Punvittayagul
- a Department of Biochemistry , Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand
| | - Paweena Sankam
- a Department of Biochemistry , Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand.,b Wanghin Wittayakom School , The Secondary Education Service Area Office 42, Uthai Thani , Thailand
| | - Sirinya Taya
- a Department of Biochemistry , Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand
| | - Rawiwan Wongpoomchai
- a Department of Biochemistry , Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand
| |
Collapse
|
92
|
Das Gupta S, Suh N. Tocopherols in cancer: An update. Mol Nutr Food Res 2016; 60:1354-63. [PMID: 26751721 DOI: 10.1002/mnfr.201500847] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/23/2015] [Accepted: 12/28/2015] [Indexed: 12/16/2022]
Abstract
Tocopherols exist in four forms designated as α, β, δ, and γ. Due to their strong antioxidant properties, tocopherols have been suggested to reduce the risk of cancer. Cancer prevention studies with tocopherols have mostly utilized α-tocopherol. Large-scale clinical trials with α-tocopherol provided inconsistent results regarding the cancer-preventive activities of tocopherols. This review summarizes our current understanding of the anticancer activities of different forms of tocopherols based on follow-up of the clinical trials, recent epidemiological evidences, and experimental studies using in vitro and in vivo models. The experimental data provide strong evidence in support of the anticancer activities of δ-tocopherol, γ-tocopherol, and the natural tocopherol mixture rich in γ-tocopherol, γ-TmT, over α-tocopherol. Such outcomes emphasize the need for detailed investigation into the cancer-preventive activities of different forms of tocopherols to provide a strong rationale for intervention studies in the future.
Collapse
Affiliation(s)
- Soumyasri Das Gupta
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA.,Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| |
Collapse
|
93
|
Saini RK, Shang XM, Ko EY, Choi JH, Kim D, Keum YS. Characterization of nutritionally important phytoconstituents in minimally processed ready-to-eat baby-leaf vegetables using HPLC–DAD and GC–MS. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2016. [DOI: 10.1007/s11694-016-9312-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
94
|
Cervinkova B, Krcmova LK, Solichova D, Melichar B, Solich P. Recent advances in the determination of tocopherols in biological fluids: from sample pretreatment and liquid chromatography to clinical studies. Anal Bioanal Chem 2016; 408:2407-24. [DOI: 10.1007/s00216-015-9214-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/04/2015] [Accepted: 11/23/2015] [Indexed: 02/07/2023]
|
95
|
Ilangovan SS, Sen S. Simultaneous inhibition of EGFR and MET receptors with phytochemical conjugated magnetic nanocarriers: in silico and in vitro study. RSC Adv 2016. [DOI: 10.1039/c6ra11821f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Beta-sitosterol,dl-alpha-tocopherol and 1,3,8-P-menthatriene ofMentha piperitaconjugated superparamagnetic iron-oxide nanoparticles (SPIONs) potentially inhibit EGFR and MET expressing cancer cells.
Collapse
Affiliation(s)
| | - Shampa Sen
- School of Biosciences and Technology
- VIT University
- Vellore
- India
| |
Collapse
|
96
|
Shin H, Eo H, Lim Y. Similarities and differences between alpha-tocopherol and gamma-tocopherol in amelioration of inflammation, oxidative stress and pre-fibrosis in hyperglycemia induced acute kidney inflammation. Nutr Res Pract 2015; 10:33-41. [PMID: 26865914 PMCID: PMC4742309 DOI: 10.4162/nrp.2016.10.1.33] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/19/2015] [Accepted: 10/22/2015] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND/OBJECTIVES Diabetes mellitus (DM) is a major chronic disease which increases global health problems. Diabetes-induced renal damage is associated with inflammation and fibrosis. Alpha (AT) and gamma-tocopherols (GT) have shown antioxidant and anti-inflammatory effects in inflammation-mediated injuries. The primary aim of this study was to investigate effects of AT and GT supplementations on hyperglycemia induced acute kidney inflammation in alloxan induced diabetic mice with different levels of fasting blood glucose (FBG). MATERIALS/METHODS Diabetes was induced by injection of alloxan monohydrate (150 mg/kg, i.p) in ICR mice (5.5-week-old, male) and mice were subdivided according to their FBG levels and treated with different diets for 2 weeks; CON: non-diabetic mice, m-DMC: diabetic control mice with mild FBG levels (250 mg/dl ≤ FBG ≤ 450 mg/dl), m-AT: m-DM mice fed AT supplementation (35 mg/kg diet), m-GT: m-DM mice with GT supplementation (35 mg/kg diet), s-DMC: diabetic control mice with severe FBG levels (450 mg/dl < FBG), s-AT: s-DM mice with AT supplementation, s-GT: s-DM mice with GT supplementation. RESULTS Both AT and GT supplementations showed similar beneficial effects on NFκB associated inflammatory response (phosphorylated inhibitory kappa B-α, interleukin-1β, C-reactive protein, monocyte chemotactic protein-1) and pre-fibrosis (tumor growth factor β-1 and protein kinase C-II) as well as an antioxidant emzyme, heme oxygenase-1 (HO-1) in diabetic mice. On the other hands, AT and GT showed different beneficial effects on kidney weight, FBG, and oxidative stress associated makers (malondialdehyde, glutathione peroxidase, and catalase) except HO-1. In particular, GT significantly preserved kidney weight in m-DM and improved FBG levels in s-DM and malondialdehyde and catalase in m- and s-DM, while AT significantly attenuated FBG levels in m-DM and improved glutathione peroxidase in m- and s-DM. CONCLUSIONS The results suggest that AT and GT with similarities and differences would be considered as beneficial nutrients to modulate hyperglycemia induced acute renal inflammation. Further research with careful approach is needed to confirm beneficial effects of tocopherols in diabetes with different FBG levels for clinical applications.
Collapse
Affiliation(s)
- Hanna Shin
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
| | - Hyeyoon Eo
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
| | - Yunsook Lim
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
| |
Collapse
|
97
|
Vivarelli F, Canistro D, Franchi P, Sapone A, Vornoli A, Della Croce C, Longo V, Lucarini M, Paolini M. Disruption of redox homeostasis and carcinogen metabolizing enzymes changes by administration of vitamin E to rats. Life Sci 2015; 145:166-73. [PMID: 26702769 DOI: 10.1016/j.lfs.2015.12.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 11/14/2015] [Accepted: 12/14/2015] [Indexed: 12/14/2022]
Abstract
AIMS A large meta-analysis of randomized clinical trials has seriously questioned chemoprevention based on vitamins including vitamin E (VE), and an increased risk for cancer among long-term users was actually seen. However, the mechanism underlying these findings still remain unknown. To clarify the mechanism, in an in vivo model we studied the putative disruption of redox homeostasis and the perturbation of carcinogen metabolizing enzymes determined by VE. MAIN METHODS Male Sprague-Dawley rats were treated ip with either 100 or 200mg/kg b.w. daily for 7 or 14 consecutive days. Controls received vehicle only. Cytochrome P450 (CYP) content, CYP-reductase, CYP-linked monooxygenases, as well as phase-II and the antioxidant enzymes catalase and NAD(P)H quinone reductase were investigated in both liver and kidney. Free radical species in tissue subcellular preparations were measured by electronic paramagnetic resonance (EPR) spectroscopy coupled to a radical probe technique. KEY FINDINGS No substantial changes of hepatic xenobiotic metabolism enzymes were determined by VE. Conversely, a powerful booster effect of various renal phase-I carcinogen bioactivating enzymes at both dosages and observational times was recorded. While no relevant changes of post-oxidative phase-II reactions were found in the liver, a significant inactivating effect was caused by VE in renal tissues. Antioxidant enzymes were found mainly downregulated by the treatment. In the kidney, a marked free radical over-generation linked to CYP induction was observed. SIGNIFICANCE This study proved that VE acts as a co-carcinogen and pro-oxidant agent. Such epigenetic mechanisms may contribute to explain the harmful outcomes observed in humans.
Collapse
Affiliation(s)
- Fabio Vivarelli
- Molecular and Toxicology Unit, Department of Pharmacy and Biotechnology, Alma-Mater Studiorum, University of Bologna, via Irnerio 48, 40126 Bologna, Italy.
| | - Donatella Canistro
- Molecular and Toxicology Unit, Department of Pharmacy and Biotechnology, Alma-Mater Studiorum, University of Bologna, via Irnerio 48, 40126 Bologna, Italy.
| | - Paola Franchi
- Department of Chemistry "G. Ciamician", Alma-Mater Studiorum, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Andrea Sapone
- Molecular and Toxicology Unit, Department of Pharmacy and Biotechnology, Alma-Mater Studiorum, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Andrea Vornoli
- Institute of Clinical Physiology, CNR, via Moruzzi 1, 56124 Pisa, Italy
| | - Clara Della Croce
- Institute of Agricultural Biology and Biotechnology, CNR, via Moruzzi 1, 56124 Pisa, Italy
| | - Vincenzo Longo
- Institute of Agricultural Biology and Biotechnology, CNR, via Moruzzi 1, 56124 Pisa, Italy
| | - Marco Lucarini
- Department of Chemistry "G. Ciamician", Alma-Mater Studiorum, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Moreno Paolini
- Molecular and Toxicology Unit, Department of Pharmacy and Biotechnology, Alma-Mater Studiorum, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| |
Collapse
|
98
|
Wang X, Ring BZ, Seitz RS, Ross DT, Woolf K, Beck RA, Hicks DG, Yeh S. Expression of a-Tocopherol-Associated protein (TAP) is associated with clinical outcome in breast cancer patients. BMC Clin Pathol 2015; 15:21. [PMID: 26664297 PMCID: PMC4673715 DOI: 10.1186/s12907-015-0021-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 11/30/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The role of vitamin E in breast cancer prevention and treatment has been widely investigated, and the different tocopherols that comprise this nutrient have been shown to have divergent associations with cancer outcome. Our previous studies have shown that α-Tocopherol-associated protein (TAP), a vitamin E binding protein, may function as a tumor suppressor-like factor in breast carcinogenesis. The current study addresses the association of TAP expression with breast cancer clinical outcomes. METHODS Immunohistochemical stain for TAP was applied to a tissue microarray from a breast cancer cohort consisting of 271 patients with a median follow-up time of 5.2 years. The expression of TAP in tumor cells was compared with patient's clinical outcome at 5 years after diagnosis. The potential role of TAP in predicting outcome was also assessed in clinically relevant subsets of the cohort. In addition, we compared TAP expression and Oncotype DX scores in an independent breast cancer cohort consisting of 71 cases. RESULTS We demonstrate that the expression of TAP was differentially expressed within the breast cancer cohort, and that ER+/PR ± tumors were more likely to exhibit TAP expression. TAP expression was associated with an overall lower recurrence rate and a better 5-year survival rate. This association was primarily in patients with ER+ tumors; exploratory analysis showed that this association was strongest in patients with node-positive tumors and was independent of stage and treatment with chemotherapy. TAP expression in ER/PR negative or triple negative tumors had no association with clinical outcome. In addition, we did not observe an association between TAP expression and Oncotype DX recurrence score. CONCLUSIONS The significant positive association we found for α-Tocopherol-associated protein with outcome in breast cancer may help to better define and explain studies addressing α-tocopherol's association with cancer risk and outcome. Additionally, further studies to validate and extend these findings may allow TAP to serve as a breast-specific prognostic marker in breast cancer patients, especially in those patients with ER+ tumors.
Collapse
Affiliation(s)
- Xi Wang
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | - Brian Z. Ring
- />Institute for Genomic and Personalized Medicine, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | | | | | - Kirsten Woolf
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | | | - David G. Hicks
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | - Shuyuan Yeh
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| |
Collapse
|
99
|
Wang H, Hong J, Yang CS. δ-Tocopherol inhibits receptor tyrosine kinase-induced AKT activation in prostate cancer cells. Mol Carcinog 2015; 55:1728-1738. [PMID: 26465359 DOI: 10.1002/mc.22422] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/03/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022]
Abstract
The cancer preventive activity of vitamin E is suggested by epidemiological studies and supported by animal studies with vitamin E forms, γ-tocopherol and δ-tocopherol (δ-T). Several recent large-scale cancer prevention trials with high dose of α-tocopherol, however, yielded disappointing results. Whether vitamin E prevents or promotes cancer is a serious concern. A better understanding of the molecular mechanisms of action of the different forms of tocopherols would enhance our understanding of this topic. In this study, we demonstrated that δ-T was the most effective tocopherol form in inhibiting prostate cancer cell growth, by inducing cell cycle arrest and apoptosis. By profiling the effects of δ-T on the cell signaling using the phospho-kinase array, we found that the most inhibited target was the phosphorylation of AKT on T308. Further study on the activation of AKT by EGFR and IGFR revealed that δ-T attenuated the EGF/IGF-induced activation of AKT (via the phosphorylation of AKT on T308 induced by the activation of PIK3). Expression of dominant active PIK3 and AKT in prostate cancer cell line DU145 in which PIK3, AKT, and PTEN are wild type caused the cells to be reflectory to the inhibition of δ-T, supporting that δ-T inhibits the PIK3-mediated activation of AKT. Our data also suggest that δ-T interferes with the EGF-induced EGFR internalization, which leads to the inhibition of the receptor tyrosine kinase-dependent activation of AKT. In summary, our results revealed a novel mechanism of δ-T in inhibiting prostate cancer cell growth, supporting the cancer preventive activity δ-T. © 2015 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Hong Wang
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
| | - Jungil Hong
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.,Department of Food Science and Technology, College of Natural Science, Seoul Women's University, Seoul, Korea
| | - Chung S Yang
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
| |
Collapse
|
100
|
Characterization of free, conjugated and bound phenolics and lipophilic antioxidants in regular- and non-darkening cranberry beans (Phaseolus vulgaris L.). Food Chem 2015; 185:298-308. [DOI: 10.1016/j.foodchem.2015.03.100] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/09/2015] [Accepted: 03/19/2015] [Indexed: 12/13/2022]
|