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Ning J, Chen J, Zhu Q, Shi M, Chen J, Liu X, Luo X, Yue X. Peptidome profiling of human, bovine, and donkey colostrum through label-free quantitative analysis reveals proteolysis of milk proteins. Food Funct 2024; 15:7161-7173. [PMID: 38888609 DOI: 10.1039/d4fo00689e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Proteins and peptides play vital roles in different biological processes in vivo. As a dynamic hydrolysis system, milk is rich in proteins and proteases and provides a constant supply of endogenous bioactive peptides to newborn mammals. Previous studies have primarily focused on researching bioactive peptides by adding exogenous enzymes to milk samples. However, such an approach overlooks the significance of endogenous peptides and parent proteins that naturally exist in milk. Herein, we analyzed and compared parent proteins and their releasing peptides in human colostrum (HC), bovine colostrum (BC), and donkey colostrum (DC). The predominant proteins and hydrolyzed peptides in the three types of milk were identified. Among them, peptides were found to possess common bioactivities, including ACE inhibitory, antioxidant, antibacterial and immunomodulatory properties in HC, BC, and DC. Furthermore, the biological functions of these parent proteins were clarified using bioinformatics. These insights offer a novel perspective on natural bioactive peptides and the potential utilization of specific parent proteins and peptides to develop infant formulae derived from diverse milk sources.
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Affiliation(s)
- Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jialu Chen
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Qing Zhu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Mingyue Shi
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jiali Chen
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiaoyu Liu
- Department of Obstetrics and Gynaecology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
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Mayakrishnan V, Lee DH, Kim KH, Kim CY. Role of Corn Peptide Powder in Lipopolysaccharide-Induced Inflammatory Responses in 3T3-L1 Adipocytes. Nutrients 2024; 16:1924. [PMID: 38931278 PMCID: PMC11207019 DOI: 10.3390/nu16121924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Corn peptide (CP) is a short, naturally occurring, and physiologically active peptide generated from corn-protease-catalyzed hydrolysis. CP plays a role in preventing obesity-related disorders, but its impact on reducing inflammation is unknown. Hence, this study examined the possible protective effects of corn peptide powder (CPP) against the harmful effects of lipopolysaccharide (LPS), with a particular emphasis on reducing oxidative damage and inflammation in adipocytes. Hence, mature 3T3-L1 adipocytes underwent exposure to 10 ng/mL LPS, with or without CPP (10 and 20 μg/mL). LPS stimulation increased reactive oxygen species and superoxide anion generation. However, this effect was reduced in a dose-dependent manner by pretreatment with CPP. CPP treatment elevated the mRNA expressions of the antioxidant enzymes manganese superoxide dismutase (mnSOD) and glutathione peroxidase 1 (Gpx1) while reducing the mRNA expressions of the cytosolic reactive oxygen species indicators p40 and p67 (NADPH oxidase 2). In addition, CPP inhibited the monocyte chemoattractant protein-1, tumor necrosis factor-alpha, Toll-like receptor 4, and nuclear factor kappa B mRNA expressions induced by LPS. These findings demonstrate that CPP may ameliorate adipocyte dysfunction by suppressing oxidative damage and inflammatory responses through a new mechanism known as Toll-like receptor 4/nuclear factor kappa B-mediated signaling.
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Affiliation(s)
| | - Dae-Hee Lee
- Sempio Foods Company, 183 Osongsaengmyeong 4ro, Osongeup, Cheongwongun 28156, Republic of Korea;
| | - Kee-Hong Kim
- Department of Food Science, Purdue University, West Lafayette, IN 47907, USA
| | - Choon Young Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Republic of Korea;
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Xu B, Dong Q, Yu C, Chen H, Zhao Y, Zhang B, Yu P, Chen M. Advances in Research on the Activity Evaluation, Mechanism and Structure-Activity Relationships of Natural Antioxidant Peptides. Antioxidants (Basel) 2024; 13:479. [PMID: 38671926 PMCID: PMC11047381 DOI: 10.3390/antiox13040479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/08/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Antioxidant peptides are a class of biologically active peptides with low molecular weights and stable antioxidant properties that are isolated from proteins. In this review, the progress in research on the activity evaluation, action mechanism, and structure-activity relationships of natural antioxidant peptides are summarized. The methods used to evaluate antioxidant activity are mainly classified into three categories: in vitro chemical, in vitro cellular, and in vivo animal methods. Also, the biological effects produced by these three methods are listed: the scavenging of free radicals, chelation of metal ions, inhibition of lipid peroxidation, inhibition of oxidative enzyme activities, and activation of antioxidant enzymes and non-enzymatic systems. The antioxidant effects of natural peptides primarily consist of the regulation of redox signaling pathways, which includes activation of the Nrf2 pathway and the inhibition of the NF-κB pathway. The structure-activity relationships of the antioxidant peptides are investigated, including the effects of peptide molecular weight, amino acid composition and sequence, and secondary structure on antioxidant activity. In addition, four computer-assisted methods (molecular docking, molecular dynamics simulation, quantum chemical calculations, and the determination of quantitative structure-activity relationships) for analyzing the structure-activity effects of natural peptides are summarized. Thus, this review lays a theoretical foundation for the development of new antioxidants, nutraceuticals, and cosmetics.
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Affiliation(s)
- Baoting Xu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Qin Dong
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
| | - Changxia Yu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
| | - Hongyu Chen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
| | - Yan Zhao
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
| | - Baosheng Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Panling Yu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Mingjie Chen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (B.X.); (Q.D.); (C.Y.); (H.C.); (B.Z.); (P.Y.)
- Shanghai Fanshun Edible Fungus Professional Cooperative, Shanghai 201317, China
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Dinić M, Jakovljević S, Popović N, Radojević D, Veljović K, Golić N, Terzić-Vidojević A. Assessment of stability and bioactive compounds in yogurt containing novel natural starter cultures with the ability to promote longevity in Caenorhabditis elegans. J Dairy Sci 2023; 106:7447-7460. [PMID: 37641316 DOI: 10.3168/jds.2023-23342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/26/2023] [Indexed: 08/31/2023]
Abstract
Yogurt represent one of the oldest fermented foods containing viable lactic acid bacteria and many bioactive compounds that could exhibit beneficial effects on human health and train our immune system to better respond to invading pathogens. Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus are commonly used for yogurt preparation under controlled temperature and environmental conditions. In this study, we investigated probiotic features of S. thermophilus BGKMJ1-36 and L. bulgaricus BGVLJ1-21 strains isolated from artisanal sour milk and yogurt by using Caenorhabditis elegans as an in vivo model system. Further, we evaluated content of total fat, saturated fatty acids, proteins, and lactose, as well as vitamins and AA of yogurt prepared from above-mentioned starter cultures during 21 d of storage at 4°C to get insights of final product stability. We showed that S. thermophilus BGKMJ1-36 and L. bulgaricus BGVLJ1-21 strains applied in combination upregulated the expression of autophagy-related genes in C. elegans. Beside autophagy, we observed activation of TIR-1-dependent transcription of lysozyme-like antimicrobial genes involved in the immune defense of C. elegans. Upregulation of these genes strongly correlates with an increase in the longevity of the worms fed with yogurt culture bacteria. Further, we showed that yogurt prepared with S. thermophilus BGKMJ1-36 and L. bulgaricus BGVLJ1-21, as a final product, is rich with vitamin B2 and dominant AA known by their prolongevity properties. Taken together, our study pointed to the beneficial features of the tested starter cultures and yogurt and highlighted their potential to be used as a fermented food with added-value properties.
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Affiliation(s)
- Miroslav Dinić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia.
| | - Stefan Jakovljević
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Nikola Popović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Dušan Radojević
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Katarina Veljović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Nataša Golić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Amarela Terzić-Vidojević
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia.
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Yang W, Zhang X, Sun M, Jiao Y, Li X, Liu L, Wang Z. The Peptide Fractions of Cheddar Cheese Made with Lactobacillus helveticus 1.0612 Play Protective Effects in H 2O 2-Induced Oxidative-Damaged Caco-2 Cells Models. Foods 2023; 12:2790. [PMID: 37509882 PMCID: PMC10379991 DOI: 10.3390/foods12142790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/16/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
In this study, water-soluble peptide (WSP) fractions of cheddar cheese made with Lactobacillus helveticus 1.0612 were purified into WSP-Ⅰ (<3 kDa), WSP-Ⅱ (3-10 kDa), and WSP-Ⅲ (>10 kDa). The protective effects of WSP, WSP-Ⅰ, WSP-Ⅱ, and WSP-Ⅲ fractions against oxidative stress in Caco-2 cells were assayed, and the cytoprotective mechanism of WSP-Ⅰ on cells oxidative damage was elucidated via metabolomics. The results showed that all four peptide fractions were able to attenuate the decrease in cell viability caused by oxidative stress and also could reduce the production of reactive oxygen species and malondialdehyde caused by oxidative stress, and increased cellular catalase and superoxide dismutase activities, thereby enhancing cellular antioxidant capacity. The WSP-Ⅰ fraction with the highest protective effect was used for metabolomics analysis, and 15 significantly different metabolites were screened. Functional pathway analysis revealed that the protective effect of the WSP-I fraction was related with nine metabolic pathways and weakened the metabolic disorders caused by H2O2 via regulating energy metabolism and amino acid metabolism. All in all, peptide fractions of cheddar cheese showed a cytoprotective effect through improved cellular metabolism.
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Affiliation(s)
- Wanshuang Yang
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Xiuxiu Zhang
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Meng Sun
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Yang Jiao
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Xiaodong Li
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Lu Liu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
| | - Zhong Wang
- College of Food Science, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist., Harbin 150030, China
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Prakash PK, Eligar SM, Prakruthi M, Jyothi Lakshmi AS. Comparative assessment of antioxidant and immunomodulatory properties of skimmed milk protein hydrolysates and their incorporation in beverage mix. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6414-6422. [PMID: 35562860 DOI: 10.1002/jsfa.12007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 05/02/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Milk-derived protein hydrolysates have generated a great deal of interest recently due to their numerous beneficial health effects. However, there are few comparative studies on protein hydrolysates from different dairy species, their production, characterization, and bioactivity. In the present study, skimmed milk from both major and minor dairy species was hydrolyzed with alcalase, and its protein profiles were studied using tricine polyacrylamide gel electrophoresis and reverse phase-high protein liquid chromatography. The antioxidant and in vitro immunostimulatory properties were determined. RESULTS Iron chelation activity was highest in hydrolysates of whey (25.00 ± 0.32 mmol L-1 ), casein (25.14 ± 0.34 mmol L-1 ), colostrum (24.52 ± 0.28 mmol L-1 ), and skimmed cattle milk (24.21 ± 0.26 mmol L-1 ). α,α-Diphenyl-β-picrylhydrazyl scavenging and 2,2'-azobis(2-amidino-propane) dihydrochloride activity was lowest in skimmed donkey milk protein hydrolysates (MPHs) (IC50 : 5.37 ± 0.05 mg mL-1 and 151.59 ± 2.1 mg mL-1 ). Production of nitric oxide and phagocytosis activity in RAW 264.7 (murine macrophage cell line) was significantly higher among whey and buffalo skimmed milk protein hydrolysate-treated groups as compared with the untreated group. The incorporation of whey protein hydrolysate and skimmed buffalo milk protein hydrolysate were sensorially acceptable at 10% level in beverage mix. CONCLUSION This study comparatively evaluates the antioxidative and immunomodulatory properties of different skimmed MPHs and their potential applications as ingredients in pediatric, geriatric, and other health-promoting foods. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Pavan Kumar Prakash
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020, India
- Department of Bioscience, Mangalore University, Mangalagangotri, Mangaluru, India
| | - Sachin M Eligar
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020, India
| | - Manikumar Prakruthi
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru, 570020, India
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Health-Promoting and Therapeutic Attributes of Milk-Derived Bioactive Peptides. Nutrients 2022; 14:nu14153001. [PMID: 35893855 PMCID: PMC9331789 DOI: 10.3390/nu14153001] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 01/27/2023] Open
Abstract
Milk-derived bioactive peptides (BAPs) possess several potential attributes in terms of therapeutic capacity and their nutritional value. BAPs from milk proteins can be liberated by bacterial fermentation, in vitro enzymatic hydrolysis, food processing, and gastrointestinal digestion. Previous evidence suggested that milk protein-derived BAPs have numerous health-beneficial characteristics, including anti-cancerous activity, anti-microbial activity, anti-oxidative, anti-hypertensive, lipid-lowering, anti-diabetic, and anti-osteogenic. In this literature overview, we briefly discussed the production of milk protein-derived BAPs and their mechanisms of action. Milk protein-derived BAPs are gaining much interest worldwide due to their immense potential as health-promoting agents. These BAPs are now used to formulate products sold in the market, which reflects their safety as natural compounds. However, enhanced commercialization of milk protein-derived BAPs depends on knowledge of their particular functions/attributes and safety confirmation using human intervention trials. We have summarized the therapeutic potentials of these BAPs based on data from in vivo and in vitro studies.
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Bielecka M, Cichosz G, Czeczot H. Antioxidant, antimicrobial and anticarcinogenic activities of bovine milk proteins and their hydrolysates - A review. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2021.105208] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Stobiecka M, Król J, Brodziak A. Antioxidant Activity of Milk and Dairy Products. Animals (Basel) 2022; 12:245. [PMID: 35158569 PMCID: PMC8833589 DOI: 10.3390/ani12030245] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/30/2021] [Accepted: 01/16/2022] [Indexed: 02/06/2023] Open
Abstract
The aim of the study was to present a review of literature data on the antioxidant potential of raw milk and dairy products (milk, fermented products, and cheese) and the possibility to modify its level at the milk production and processing stage. Based on the available reports, it can be concluded that the consumption of products that are a rich source of bioactive components improves the antioxidant status of the organism and reduces the risk of development of many civilization diseases. Milk and dairy products are undoubtedly rich sources of antioxidant compounds. Various methods, in particular, ABTS, FRAP, and DPPH assays, are used for the measurement of the overall antioxidant activity of milk and dairy products. Research indicates differences in the total antioxidant capacity of milk between animal species, which result from the differences in the chemical compositions of their milk. The content of antioxidant components in milk and the antioxidant potential can be modified through animal nutrition (e.g., supplementation of animal diets with various natural additives (herbal mixtures, waste from fruit and vegetable processing)). The antioxidant potential of dairy products is associated with the quality of the raw material as well as the bacterial cultures and natural plant additives used. Antioxidant peptides released during milk fermentation increase the antioxidant capacity of dairy products, and the use of probiotic strains contributes its enhancement. Investigations have shown that the antioxidant activity of dairy products can be enhanced by the addition of plant raw materials or their extracts in the production process. Natural plant additives should therefore be widely used in animal nutrition or as functional additives to dairy products.
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Affiliation(s)
| | - Jolanta Król
- Department of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland; (M.S.); (A.B.)
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Liu M, Zhang T, Liang X, Yuan Q, Zeng X, Wu Z, Pan D, Tao M, Guo Y. Production and transepithelial transportation of casein-derived peptides and identification a novel antioxidant peptide LHSMK. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Montserrat-de la Paz S, Villanueva A, Pedroche J, Millan F, Martin ME, Millan-Linares MC. Antioxidant and Anti-Inflammatory Properties of Bioavailable Protein Hydrolysates from Lupin-Derived Agri-Waste. Biomolecules 2021; 11:1458. [PMID: 34680091 PMCID: PMC8533297 DOI: 10.3390/biom11101458] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/19/2022] Open
Abstract
Agri-food industries generate several by-products, including protein-rich materials currently treated as waste. Lupine species could be a sustainable alternative source of protein compared to other crops such as soybean or chickpea. Protein hydrolysates contain bioactive peptides that may act positively in disease prevention or treatment. Inflammatory responses and oxidative stress underlie many chronic pathologies and natural treatment approaches have gained attention as an alternative to synthetic pharmaceuticals. Recent studies have shown that lupin protein hydrolysates (LPHs) could be an important source of biopeptides, especially since they demonstrate anti-inflammatory properties. However, due to their possible degradation by digestive and brush-border enzymes, it is not clear whether these peptides can resist intestinal absorption and reach the bloodstream, where they may exert their biological effects. In this work, the in vitro cellular uptake/transport and the anti-inflammatory and antioxidant properties of LPH were investigated in a co-culture system with intestinal epithelial Caco-2 cells and THP-1-derived macrophages. The results indicate that the LPH crosses the human intestinal Caco-2 monolayer and exerts anti-inflammatory activity in macrophages located in the basement area by decreasing mRNA levels and the production of pro-inflammatory cytokines. A remarkable reduction in nitric oxide and ROS in the cell-based system by peptides from LPH was also demonstrated. Our preliminary results point to underexplored protein hydrolysates from food production industries as a novel, natural source of high-value-added biopeptides.
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Affiliation(s)
- Sergio Montserrat-de la Paz
- Department of Medical Biochemistry, Molecular Biology, and Immunology, School of Medicine, Universidad de Sevilla, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain;
| | - Alvaro Villanueva
- Plant Protein Group, Food and Health Department, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain; (A.V.); (J.P.); (F.M.); (M.C.M.-L.)
| | - Justo Pedroche
- Plant Protein Group, Food and Health Department, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain; (A.V.); (J.P.); (F.M.); (M.C.M.-L.)
| | - Francisco Millan
- Plant Protein Group, Food and Health Department, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain; (A.V.); (J.P.); (F.M.); (M.C.M.-L.)
| | - Maria E. Martin
- Department of Cell Biology, Faculty of Biology, Universidad de Sevilla, Av. Reina Mercedes s/n, 41012 Seville, Spain
| | - Maria C. Millan-Linares
- Plant Protein Group, Food and Health Department, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain; (A.V.); (J.P.); (F.M.); (M.C.M.-L.)
- Cell Biology Unit, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain
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12
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Aresta A, De Santis S, Carocci A, Barbarossa A, Ragusa A, De Vietro N, Clodoveo ML, Corbo F, Zambonin C. Determination of Commercial Animal and Vegetable Milks' Lipid Profile and Its Correlation with Cell Viability and Antioxidant Activity on Human Intestinal Caco-2 Cells. Molecules 2021; 26:5645. [PMID: 34577116 PMCID: PMC8465430 DOI: 10.3390/molecules26185645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/29/2022] Open
Abstract
Lipids from milk are important nutritional components, although their health effects, especially for animal milks, are still questioned. Four types of commercial milks, two semi-skimmed animal milks (bovine and goat) and two vegetable ones (soy and rice), along with their total and free lipid fractions recovered by sequential centrifugation or by ethyl acetate extraction, respectively, have been analyzed. A higher antioxidant ability, reported as Trolox equivalent antioxidant capacity, was found for all raw milks compared to that of rice. This trend was confirmed, except for soy milk, as ROS reduction in Caco-2 cells. The free lipid fraction was shown to have the highest antioxidant potential in both chemical and biological tests. Moreover, goat and soy raw milks positively regulated Caco-2 cell viability after an inflammatory stimulus. This effect was lost when their total lipid fraction was tested. Finally, only the free lipid fraction from rice milk preserved the Caco-2 viability after LPS stimulation. Our data demonstrated that the lipid profile of each milk, characterized by GC-MS analysis, could contribute to dictate its biological effects, and, although additional in vitro and in vivo studies are needed, they could support the literature re-evaluating the health effects of animal-based versus plant-based milks in the intestinal cellular model.
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Affiliation(s)
- Antonella Aresta
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
| | - Stefania De Santis
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Alessia Carocci
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Alexia Barbarossa
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Andrea Ragusa
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy;
| | - Nicoletta De Vietro
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
| | - Maria Lisa Clodoveo
- Department of Interdisciplinary Medicine, Aldo Moro University of Bari, 70126 Bari, Italy;
| | - Filomena Corbo
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Carlo Zambonin
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
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13
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Impact of food-derived bioactive peptides on gut function and health. Food Res Int 2021; 147:110485. [PMID: 34399481 DOI: 10.1016/j.foodres.2021.110485] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/10/2021] [Accepted: 05/23/2021] [Indexed: 12/14/2022]
Abstract
The gastrointestinal tract (GIT) is the largest interface between our body and the environment. It is an organ system extending from the mouth to the anus and functions for food intake, digestion, transport and absorption of nutrients, meanwhile providing protection from environmental factors, like toxins, antigens, and pathogens. Diet is one of the leading factors modulating the function of the GIT. Bioactive peptides presenting naturally in food or derived from food proteins during digestion or processing have been revealed multifunctional in diverse biological processes, including maintaining gut health and function. This review summarizes the available evidence regarding the effects of food-derived bioactive peptides on gut function and health. Findings and insights from studies based on in vitro and animal models are discussed. The gastrointestinal mucosa maintains a delicate balance between immune tolerance to nutrients and harmful components, which is crucial for the digestive system's normal functions. Dietary bioactive peptides positively impact gastrointestinal homeostasis by modulating the barrier function, immune responses, and gut microbiota. However, there is limited clinical evidence on the safety and efficacy of bioactive peptides, much less on the applications of dietary peptides for the treatment or prevention of diseases related to the GIT. Further study is warranted to establish the applications of bioactive peptides in regulating gut health and function.
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Qian Z, Chen M, Chen J, Zhang Y, Zhou C, Hong P, Yang P. Intracellular ethanol-mediated oxidation and apoptosis in HepG2/CYP2E1 cells impaired by two active peptides from seahorse ( Hippocampus kuda bleeler) protein hydrolysates via the Nrf2/HO-1 and akt pathways. Food Sci Nutr 2021; 9:1584-1602. [PMID: 33747471 PMCID: PMC7958582 DOI: 10.1002/fsn3.2133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 12/13/2022] Open
Abstract
Seahorse (Hippocampus kuda Bleeler) are representative marine species in aquaculture, with special value of medicine and food. In this study, the protective effects of two peptides from seahorse hydrolysates (SHP-1 and SHP-2) against ethanol-mediated oxidative stress in HepG2/CYP2E1 cells were investigated. Firstly, SHP-1 and SHP-2 presented no cytotoxicity. Compared with the ethanol-treated groups, SHP-1 and SHP-2 increased cell viability in a concentration-dependent manner. Secondly, SHP-1 and SHP-2 markedly reduced intracellular reactive oxygen species (ROS) generation, gamma-glutamyltranspeptidase (GGT) activity, and tumor necrosis factor-α (TNF-α) levels and remarkably enhanced superoxide dismutase (SOD) and glutathione (GSH) activities. SHP-1 and SHP-2 also down-regulated the expressions of GGT, bax, c-caspase-8/-9/-3, p-Akt, p-IκB-α, p-p65, p-ERK, and p-p38 but up-regulated SOD, GSH, NF-E2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and bcl-2 levels, as revealed by Western blot analysis. Moreover, SHP-1 and SHP-2 increased the mitochondrial membrane potential (MMP), reduced DNA damage, and suppressed the nuclear translocation of p65. These results suggest that two peptides from seahorse hydrolysates can be considered a potential functional biomaterial and further improve the use value of seahorse in aquaculture.
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Affiliation(s)
- Zhong‐Ji Qian
- Shenzhen Institute of Guangdong Ocean UniversityShenzhenChina
- Southern Marine Science and Engineering Guangdong LaboratoryZhanjiangChina
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
| | - Mei‐Fang Chen
- Shenzhen Institute of Guangdong Ocean UniversityShenzhenChina
- Southern Marine Science and Engineering Guangdong LaboratoryZhanjiangChina
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
| | - Jiali Chen
- Lengshuitan Bezirk Agricultural and Rural BureauYongzhou CityChina
| | - Yi Zhang
- Shenzhen Institute of Guangdong Ocean UniversityShenzhenChina
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
| | - Chunxia Zhou
- Shenzhen Institute of Guangdong Ocean UniversityShenzhenChina
- Southern Marine Science and Engineering Guangdong LaboratoryZhanjiangChina
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
| | - Pengzhi Hong
- Southern Marine Science and Engineering Guangdong LaboratoryZhanjiangChina
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
| | - Ping Yang
- School of Chemistry and EnvironmentCollege of Food Science and TechnologyGuangdong Ocean UniversityZhanjiangChina
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15
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Fermented Soy-Derived Bioactive Peptides Selected by a Molecular Docking Approach Show Antioxidant Properties Involving the Keap1/Nrf2 Pathway. Antioxidants (Basel) 2020; 9:antiox9121306. [PMID: 33352784 PMCID: PMC7765838 DOI: 10.3390/antiox9121306] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 11/23/2022] Open
Abstract
Bioactive peptides are a group of molecules with health beneficial properties, deriving from food matrices. They are protein fragments consisting of 2–20 amino acids that can be released by microbial fermentation, food processing and gastrointestinal digestion. Once hydrolyzed from their native proteins, they can have different functions including antioxidant activity, which is important for cell protection by oxidant agents. In this work, fermented soy products were digested in vitro in order to improve the release of bioactive peptides. These were extracted, purified and analyzed in vitro and in a cellular model to assess their antioxidant activity. Peptide sequences were identified by LC-MS/MS analysis and a molecular docking approach was used to predict their ability to interact with Keap1, one of the key proteins of the Keap1/Nrf2 pathway, the major system involved in redox regulation. Peptides showing a high score of interaction were selected and tested for their antioxidant properties in a cellular environment using the Caco-2 cell line and examined for their capability to defend cells against oxidative stress. Our results indicate that several of the selected peptides were indeed able to activate the Keap1/Nrf2 pathway with the consequent overexpression of antioxidant and phase II enzymes.
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16
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Shivanna SK, Nataraj BH. Revisiting therapeutic and toxicological fingerprints of milk-derived bioactive peptides: An overview. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100771] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Impact of sequential enzymatic hydrolysis on antioxidant activity and peptide profile of casein hydrolysate. Journal of Food Science and Technology 2020; 57:4562-4575. [PMID: 33087969 DOI: 10.1007/s13197-020-04495-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/06/2019] [Accepted: 04/29/2020] [Indexed: 10/24/2022]
Abstract
Abstract This paper shows the potential of dual enzyme approach on antioxidant activity of casein hydrolysates. Casein was hydrolysed using the proteolytic enzymes alcalase, flavourzyme in isolation and in sequential order. Casein hydrolysates were evaluated for the degree of hydrolysis, antioxidant activity, molecular weight distribution patterns and peptide sequence. Casein hydrolysate produced by the sequential hydrolysis of alcalase and flavourzyme showed higher degree of hydrolysis and antioxidant activity as compared to hydrolysate obtained by individual enzymes. In size exclusion chromatograph of casein hydrolysate S3, peptides with molecular weight of 0.57 kDa share 12% area in total area of chromatogram which was 10 times higher than that of hydrolysate S1 and nearly half of that of hydrolysate S2. On subjecting to HPLC-TOF-ESI separation potential antioxidant peptides were identified. The peptide sequence VLPVPQ along with potential fragments was identified in hydrolysate S1 and S2 and HPHPHLS along with its potential sequence was identified in hydrolysate S1, S2 and S3. Sequential hydrolysis of casein showed better antioxidant activity and peptide profile in less duration as compared to the casein hydrolysate obtained by individual enzyme. Graphic abstract
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18
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Howland V, Klaedtke M, Ruhnau J, Dhople VM, Grabe HJ, Völker U, Heckmann M, Hammer E. Impact of Storage Conditions on the Breast Milk Peptidome. Nutrients 2020; 12:nu12092733. [PMID: 32911625 PMCID: PMC7551425 DOI: 10.3390/nu12092733] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/28/2020] [Accepted: 09/04/2020] [Indexed: 12/17/2022] Open
Abstract
Human donor milk (HDM) provides appropriate nutrition and offers protective functions in preterm infants. The aim of the study is to examine the impact of different storage conditions on the stability of the human breast milk peptidome. HDM was directly frozen at −80 °C or stored at −20 °C (120 h), 4 °C (6 h), or room temperature (RT for 6 or 24 h). The milk peptidome was profiled by mass spectrometry after peptide collection by ultrafiltration. Profiling of the peptidome covered 3587 peptides corresponding to 212 proteins. The variance of the peptidome increased with storage temperature and time and varied for different peptides. The highest impact was observed when samples were stored at RT. Smaller but significant effects were still observed in samples stored at 4 °C, while samples showed highest similarity to those immediately frozen at −80 °C when stored at −20 °C. Peptide structures after storage at RT for 24 h point to the increased activity of thrombin and other proteases cleaving proteins at lysine/arginine. The results point to an ongoing protein degradation/peptide production by milk-derived proteases. They underline the need for immediate freezing of HDM at −20 °C or −80 °C to prevent degradation of peptides and enable reproducible investigation of prospectively collected samples.
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Affiliation(s)
- Vanessa Howland
- Department of Neonatology and Paediatric Intensive Care, University Medicine Greifswald, D-17475 Greifswald, Germany;
| | - Maik Klaedtke
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, D-17475 Greifswald, Germany; (M.K.); (V.M.D.); (U.V.)
| | - Johanna Ruhnau
- Department of Neurology, University Medicine Greifswald, D-17475 Greifswald, Germany;
| | - Vishnu M. Dhople
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, D-17475 Greifswald, Germany; (M.K.); (V.M.D.); (U.V.)
| | - Hans J. Grabe
- Department of Psychiatry & Psychotherapy, University Medicine Greifswald, D-17475 Greifswald, Germany;
| | - Uwe Völker
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, D-17475 Greifswald, Germany; (M.K.); (V.M.D.); (U.V.)
| | - Matthias Heckmann
- Department of Neonatology and Paediatric Intensive Care, University Medicine Greifswald, D-17475 Greifswald, Germany;
- Correspondence: (M.H.); (E.H.); Tel.: +49-3834-86-6421 (M.H.); +49-3834-420-5811 (E.H.)
| | - Elke Hammer
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, D-17475 Greifswald, Germany; (M.K.); (V.M.D.); (U.V.)
- Correspondence: (M.H.); (E.H.); Tel.: +49-3834-86-6421 (M.H.); +49-3834-420-5811 (E.H.)
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19
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Tonolo F, Fiorese F, Moretto L, Folda A, Scalcon V, Grinzato A, Ferro S, Arrigoni G, Bindoli A, Feller E, Bellamio M, Marin O, Rigobello MP. Identification of New Peptides from Fermented Milk Showing Antioxidant Properties: Mechanism of Action. Antioxidants (Basel) 2020; 9:antiox9020117. [PMID: 32013158 PMCID: PMC7070694 DOI: 10.3390/antiox9020117] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 01/12/2023] Open
Abstract
Due to their beneficial properties, fermented foods are considered important constituents of the human diet. They also contain bioactive peptides, health-promoting compounds studied for a wide range of effects. In this work, several antioxidant peptides extracted from fermented milk proteins were investigated. First, enriched peptide fractions were purified and analysed for their antioxidant capacity in vitro and in a cellular model. Subsequently, from the most active fractions, 23 peptides were identified by mass spectrometry MS/MS), synthesized and tested. Peptides N-15-M, E-11-F, Q-14-R and A-17-E were selected for their antioxidant effects on Caco-2 cells both in the protection against oxidative stress and inhibition of ROS production. To define their action mechanism, the activation of the Kelch-like ECH-associated protein 1/nuclear factor erythroid 2-related factor 2(Keap1/Nrf2) pathway was studied evaluating the translocation of Nrf2 from cytosol to nucleus. In cells treated with N-15-M, Q-14-R and A-17-E, a higher amount of Nrf2 was found in the nucleus with respect to the control. In addition, the three active peptides, through the activation of Keap1/Nrf2 pathway, led to overexpression and increased activity of antioxidant enzymes. Molecular docking analysis confirmed the potential ability of N-15-M, Q-14-R and A-17-E to bind Keap1, showing their destabilizing effect on Keap1/Nrf2 interaction.
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Affiliation(s)
- Federica Tonolo
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Federico Fiorese
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Laura Moretto
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Alessandra Folda
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Valeria Scalcon
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Alessandro Grinzato
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Stefania Ferro
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | - Giorgio Arrigoni
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
| | | | - Emiliano Feller
- Centrale del Latte di Vicenza S.p.A., 36100 Vicenza, Italy; (E.F.); (M.B.)
| | - Marco Bellamio
- Centrale del Latte di Vicenza S.p.A., 36100 Vicenza, Italy; (E.F.); (M.B.)
| | - Oriano Marin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
- Correspondence: (O.M.); (M.P.R.)
| | - Maria Pia Rigobello
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.T.); (F.F.); (L.M.); (A.F.); (V.S.); (A.G.); (S.F.); (G.A.)
- Correspondence: (O.M.); (M.P.R.)
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20
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Martínez-Sánchez SM, Gabaldón-Hernández JA, Montoro-García S. Unravelling the molecular mechanisms associated with the role of food-derived bioactive peptides in promoting cardiovascular health. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103645] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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21
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Tonolo F, Folda A, Cesaro L, Scalcon V, Marin O, Ferro S, Bindoli A, Rigobello MP. Milk-derived bioactive peptides exhibit antioxidant activity through the Keap1-Nrf2 signaling pathway. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103696] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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