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Ning K, Duan Y, Tong W, Chen Y, Zhang Q, Xie Q, Xiang H. Protective Effects of Different Molecular Weights of Purslane ( Portulaca oleracea L.) Aqueous Extract on DSS-Induced Ulcerative Colitis in Mice. Antioxidants (Basel) 2023; 12:1400. [PMID: 37507939 PMCID: PMC10376347 DOI: 10.3390/antiox12071400] [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: 05/24/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Purslane, a common wild vegetable, contains active substances with various biological functions. However, its effects have been under-investigated in ulcerative colitis (UC). Therefore, this study investigated the therapeutic effects of purslane macromolecular (POEM) and small molecular extracts (POES) on dextran sulfate sodium (DSS)-induced UC in mice. Membrane separation was used to obtain extracts of different molecular weights, and their compositional differences were compared using liquid chromatography-mass spectrometry (LC/MS). POEM contained more proteins and polysaccharides, whereas POES contained more organic acids and alkaloids. These differences in composition were directly responsible for the different degrees of remission of the alleviated UC in model mice. POEM may alleviate UC by regulating the antioxidant capacity and the gut microbiota, whereas the major alleviatory effect of POES was primarily related to the regulation of antioxidant capacity. The POEM and POES effects identified in this study provide a theoretical basis for the development of purslane as a functional food.
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Affiliation(s)
- Ke Ning
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Yameng Duan
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Weiwei Tong
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Yue Chen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Qinghui Zhang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Qiuhong Xie
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
- Institute of Changbai Mountain Resource and Health, Jilin University, Fusong 134504, China
| | - Hongyu Xiang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
- Institute of Changbai Mountain Resource and Health, Jilin University, Fusong 134504, China
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Rzhepakovsky I, Anusha Siddiqui S, Avanesyan S, Benlidayi M, Dhingra K, Dolgalev A, Enukashvily N, Fritsch T, Heinz V, Kochergin S, Nagdalian A, Sizonenko M, Timchenko L, Vukovic M, Piskov S, Grimm W. Anti-arthritic effect of chicken embryo tissue hydrolyzate against adjuvant arthritis in rats (X-ray microtomographic and histopathological analysis). Food Sci Nutr 2021; 9:5648-5669. [PMID: 34646534 PMCID: PMC8498067 DOI: 10.1002/fsn3.2529] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/13/2021] [Accepted: 06/29/2021] [Indexed: 12/24/2022] Open
Abstract
Finding new, safe strategies to prevent and control rheumatoid arthritis is an urgent task. Bioactive peptides and peptide-rich protein hydrolyzate represent a new trend in the development of functional foods and nutraceuticals. The resulting tissue hydrolyzate of the chicken embryo (CETH) has been evaluated for acute toxicity and tested against chronic arthritis induced by Freund's full adjuvant (modified Mycobacterium butyricum) in rats. The antiarthritic effect of CETH was studied on the 28th day of the experiment after 2 weeks of oral administration of CETH at doses of 60 and 120 mg/kg body weight. Arthritis was evaluated on the last day of the experiment on the injected animal paw using X-ray computerized microtomography and histopathology analysis methods. The CETH effect was compared with the non-steroidal anti-inflammatory drug diclofenac sodium (5 mg/kg). Oral administration of CETH was accompanied by effective dose-dependent correction of morphological changes caused by the adjuvant injection. CETH had relatively high recovery effects in terms of parameters for reducing inflammation, inhibition of osteolysis, reduction in the inflammatory reaction of periarticular tissues, and cartilage degeneration. This study presents for the first time that CETH may be a powerful potential nutraceutical agent or bioactive component in the treatment of rheumatoid arthritis.
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Affiliation(s)
- Igor Rzhepakovsky
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Shahida Anusha Siddiqui
- Technical University of Munich Campus Straubing for Biotechnology and SustainabilityStraubingGermany
- DIL e.V. German Institute of Food TechnologiesQuakenbrückGermany
| | - Svetlana Avanesyan
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Mehmet Benlidayi
- Faculty of DentistryDepartment of Oral and Maxillofacial SurgeryCukurova UniversitySarıçam/AdanaTurkey
| | - Kunaal Dhingra
- Division of PeriodonticsCentre for Dental Education and ResearchAll India Institute of Medical SciencesNew DelhiIndia
| | - Alexander Dolgalev
- Department of General Dentistry and Pediatric DentistryStavropol State Medical UniversityStavropolRussia
- Center for Innovation and Technology TransferStavropol State Medical UniversityStavropolRussian Federation
| | | | - Tilman Fritsch
- Center for Innovation and Technology TransferStavropol State Medical UniversityStavropolRussian Federation
| | - Volker Heinz
- DIL e.V. German Institute of Food TechnologiesQuakenbrückGermany
| | | | - Andrey Nagdalian
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Marina Sizonenko
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Lyudmila Timchenko
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Marko Vukovic
- Center for Innovation and Technology TransferStavropol State Medical UniversityStavropolRussian Federation
| | - Sergey Piskov
- Institute of Live ScienceNorth Caucasus Federal UniversityStavropolRussia
| | - Wolf‐Dieter Grimm
- Center for Innovation and Technology TransferStavropol State Medical UniversityStavropolRussian Federation
- Periodontology, School of Dental MedicineFaculty of HealthWitten/Herdecke UniversityWittenGermany
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Zhang L, Fu M, Chen J, Fan B, Cao L, Sun Y, Li L, Li S, Lu C, Wang F. Supplementation with embryo chicken egg extract improves exercise performance and exerts anti-fatigue effects via AMPK/mTOR signalling pathway in mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:1411-1418. [PMID: 32835411 DOI: 10.1002/jsfa.10754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 06/22/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Embryo chicken egg is a nutritional supplement that has been used to enhance physical fitness and promote wound healing according to traditional Chinese medicine for many years. In this study, we evaluated the effects of embryo chicken egg extract (ECE) on the exercise performance and fatigue in mice and the underlying mechanisms. RESULTS The results indicated that ECE can prolong the exhaustive swimming time, decrease lactic acid, blood urea nitrogen, creatine kinase, and malondialdehyde levels, and increase superoxide dismutase, glutathione peroxidase, and glycogen levels. Additionally, ECE can also regulate the balance of oxidative stress via the adenosine monophosphate activated protein kinase/mammalian target of rapamycin signalling pathway. CONCLUSION Taken together, these results showed that ECE can improve exercise performance and reduce physical fatigue in mice, which indicates that ECE can be used as a potential supplement to reduce physical fatigue. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Lijing Zhang
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mai Fu
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jilan Chen
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bei Fan
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Li Cao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yanyan Sun
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liyong Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shuying Li
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Cong Lu
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fengzhong Wang
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
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In Vivo Anti-Inflammatory Effects and Related Mechanisms of Processed Egg Yolk, a Potential Anti-Inflammaging Dietary Supplement. Nutrients 2020; 12:nu12092699. [PMID: 32899660 PMCID: PMC7551027 DOI: 10.3390/nu12092699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 12/22/2022] Open
Abstract
Egg-yolk based supplements have demonstrated biological effects. We have developed a novel processed egg-yolk (PEY) complement, and we have tested whether it has inflammation modulatory properties. These were evaluated in a lipopolysaccharide (LPS)-challenge in 1-month male rats by in vivo circulating cytokine profiles measured by multiplexing techniques. Cell culture was used to explore ex vivo properties of derived serum samples. We explored growth factor composition, and mass-spectrometry metabolome and lipidome analyses of PEY to characterize it. PEY significantly prevented LPS-induced increase in IL-1 β, TNF-α, and MCP-1. Further, serum from PEY-treated animals abrogated LPS-induced iNOS build-up of the Raw 264.7 macrophage-like cell line. Immunochemical analyses demonstrated increased concentrations of insulin-like growth factor 1 (IGF-1), connective tissue growth factor (CTGF), and platelet-derived growth factor (PDGF) in the extract. PEY vs. egg-yolk comparative metabolomic analyses showed significative differences in the concentrations of at least 140 molecules, and in 357 in the lipidomic analyses, demonstrating the complexity of PEY. Globally, PEY acts as an orally-bioavailable immunomodulatory extract that may be of interest in those conditions associated with disarranged inflammation, such as inflammaging.
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Yuan B, Zhao C, Cheng C, Huang DC, Cheng SJ, Cao CJ, Chen GT. A peptide-Fe(II) complex from Grifola frondosa protein hydrolysates and its immunomodulatory activity. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.100459] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Chang SN, Khan I, Dey DK, Cho KH, Hwang BS, Bae KB, Kang SC, Park JG. Decursinol angelate ameliorates 12-O-tetradecanoyl phorbol-13-acetate (TPA) -induced NF-κB activation on mice ears by inhibiting exaggerated inflammatory cell infiltration, oxidative stress and pro-inflammatory cytokine production. Food Chem Toxicol 2019; 132:110699. [PMID: 31351099 DOI: 10.1016/j.fct.2019.110699] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/28/2022]
Abstract
Decursinol angelate (DA) is a pyranocoumarin purified from the roots of Angelica gigas. Here, we synthesized DA and determined its anti-inflammatory potential on TPA-induced mice ear inflammation. First, we evaluated the non-toxic behaviour of DA on HaCaT cells. Additionally, we observed the free radical scavenging potential of DA at 60 μM to be 50%. This finding was further supported by nitric oxide assay, malondialdehyde assay, H2DCFDA staining and western blotting analysis of antioxidant enzymes. DA also suppressed the activation and polarization of macrophage phagocytic activity on RAW 264.7 cells. We further evaluated the expression of ICAM-1, MCP-1, MIP-2 and MIP-1β on in-vivo model system. Consequently, DA significantly reduced the production of NF-κB and COX-2 induced proinflammatory cytokine levels on TPA induced ear edema. Inhibition of MAPK and transcriptional factor NF-κB was also validated by western blotting analysis of p-ERK, p-p38, IKKα, IKKγ, IκBα, NF-κB-p65. Immunohistochemistry and immunofluorescence staining of NFκB-p65, TNF-α and IL-1β were also performed to support the findings. Conclusively, these results suggest that topical administration of DA significantly inhibited the expression of pro-inflammatory cytokines by blocking the canonical NF-κB and MAPK pathway. Therefore, we suggest DA as a potent therapeutic compound against skin inflammation related diseases.
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Affiliation(s)
- Sukkum Ngullie Chang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Imran Khan
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, Republic of Korea
| | - Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Kiu-Hyung Cho
- Research group, Gyeongbuk Institute for Bio Industry(GIB), Andong, 36728, Republic of Korea
| | - Buyng Su Hwang
- Nakdonggang National Institute of Biological Resources, Sangju, 37242, Republic of Korea
| | - Ki Beom Bae
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea.
| | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea
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Ma J, Wang H, Liu B, Shan Y, Zhou H, Qi X, Wu W, Jia L. Combination of chick embryo and nutrient mixture prevent D-galactose-induced cognitive deficits, immune impairment and oxidative stress in aging rat model. Sci Rep 2019; 9:4092. [PMID: 30858562 PMCID: PMC6411858 DOI: 10.1038/s41598-019-40953-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 02/26/2019] [Indexed: 01/09/2023] Open
Abstract
Aging is spontaneous and inevitable processes that lead to changes in biological systems. The present paper was designed to investigate the anti-aging roles of chick embryo (CE) and nutrient mixture (NM) in aging rats. Aging was induced by administration of D-galactose (D-gal, 500 mg/kg/day for 90 days). CE and NM were administered to aging rats through different dose gavage once a day. Cognitive function assessment was performed using the Morris water maze test. At the end of experiment, serum and tissues were collected for immunity and antioxidation function. The organs and tissues were excised for histological study. The results demonstrated that CE plus NM was superior treatment to improve the histopathologic changes and reverse learning and memory impairment of the aging rats. CE plus NM also increased the spleen and thymus index as well as splenocyte proliferation, and reversed inflammatory cytokine levels. In addition, the biochemical index showed that CE plus NM could improve the antioxidant enzyme activity of the aging rats, decrease lipofuscin (LF) and glutamate content. CE plus NM also inhibited the activation of TLR4/NF-κB pathway stimulated by LPS in splenic B lymphocytes. Overall, these results seem to be implying that CE plus NM was used as potentially natural supplement or functional food for preventing aging.
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Affiliation(s)
- Jia Ma
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Huaxin Wang
- Department of Pathology and Forensic Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Bing Liu
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Yujia Shan
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Huimin Zhou
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Xia Qi
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Wenguo Wu
- Dalian Jinfu Biological Technology Development Co., Ltd, Dalian, 116000, Liaoning Province, China
| | - Li Jia
- College of Laboratory Medicine, Dalian Medical University, Dalian, 116044, Liaoning Province, China.
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Yang S, Tang Z, Tang S, Zhang T, Tang F, Wu Y, Wang Y, Wang LL, Liu G. Purification and Characterization of an Antioxidant Protein from Fertilized Eggs. Korean J Food Sci Anim Resour 2016; 36:791-798. [PMID: 28115891 PMCID: PMC5243964 DOI: 10.5851/kosfa.2016.36.6.791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/16/2016] [Accepted: 11/25/2016] [Indexed: 11/09/2022] Open
Abstract
Free radicals may attack cells or tissue, leading to chronic diseases, and antioxidant consumption is potentially useful for removing free radicals. Egg proteins may be used as potential sources of antioxidant considering their ability of scavenging free radicals to apply for food or cosmetics industry. In this study, we obtained a natural antioxidant protein from fertilized eggs, which was a dietary supplement in some Asian countries. Meanwhile, antioxidant activities of these proteins were evaluated using different oxidation systems. With increasing incubation time, the antioxidant activity of these proteins increased during 15 d of incubation. The samples on day 15 were performed for isolation of antioxidant protein. The protein, named P4-1 (MW, 45 kDa), was isolated and purified by consecutive chromatographic methods. P4-1 contained 17 amino acids, which was determined by liquid chromatography-mass spectrometry and Amino Acid Analyzer. Moreover, the amino acid sequence was highly similar to that of ovalbumin. Differential scanning calorimetry showed that the denaturation temperature of P4-1 was 57.16℃. Furthermore, P4-1 suggested high oxygen radical-absorbance activity in ·OH assays, and its antioxidant activity was stable at 30-50℃ in acidic and neutral pH. Thus, these results revealed that P4-1 may be a potential resource as a natural antioxidant.
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Affiliation(s)
- Shaohua Yang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Zhengjiang Tang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - ShanShan Tang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Tingfang Zhang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Fei Tang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Yu Wu
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Ying Wang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Lu Lu Wang
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
| | - Guoqing Liu
- College of Biotechnology and Food Engineering, Hefei University of Technology, Anhui 230009, P. R. China
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Ma S, Huang D, Zhai M, Yang L, Peng S, Chen C, Feng X, Weng Q, Zhang B, Xu M. Isolation of a novel bio-peptide from walnut residual protein inducing apoptosis and autophagy on cancer cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:413. [PMID: 26593407 PMCID: PMC4656182 DOI: 10.1186/s12906-015-0940-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 11/17/2015] [Indexed: 01/10/2023]
Abstract
Background Walnut is unique because they have a perfect balance of n-6 and n-3 polyunsaturated fatty acids. The increasing market demand of walnut lipids results in the large amount of the oil extraction residue. The walnut residue is rich in nutritional proteins, and the uneconomic use of the by-product discouraged the development of walnut industry. Anticancer peptides have recently received attention as alternative chemotherapeutic agents that overcome the limits of current drugs. The aim of this study was to investigate whether anticancer bioactive peptide is contained in walnut. Methods Walnut residual protein was hydrolyzed separately by five different proteases. The sequential purification of the hydrolysates was carried out by ultra-filtration, gel filtration chromatography and RP-HPLC to obtain a cancer cell growth inhibitory peptide. Cell cycle distribution, Annexin V-FITC/PI double staining, TUNEL assay, western blot and immunofluorescence for LC3-II assay were used to detect apoptosis and autophagy on cells. Cytokine production was measured by ELISA kits, macrophage phagocytosis was measured by neutral red uptake assay, nitric oxide production was measured by Griess reagent. Results The hydrolysates of walnut residual protein produced by papain under the optimal conditions (5 % substrate concentration and an enzyme-substrate ratio of 10 % at temperature 60 C for 3 h), showed significant growth inhibitory activity on MCF-7. The amino acid sequence of the purified peptide was identified as CTLEW with a molecular weight of 651.2795 Da. It is a novel bio-peptide with an amphiphilic structure. CTLEW induced both apoptosis and autophagy on MCF-7 cells, inhibited the cancer cells growth of Caco-2 and HeLa significantly, but did not show any cytotoxic activity against non-cancerous IEC-6 cells. Moreover, the bio-peptide enhanced proliferation and IL-2 secretion of spleen lymphocytes, promoted phagocytosis and NO production of macrophages. Conclusion These results suggested that a novel bio-peptide, CTLEW inducing apoptosis and autophagy on MCF-7 cells can be released from walnut residual protein through papain hydrolyzing under the certain condition. The bio-peptide shows selective inhibition towards cancer cells growth and immunomodulatory activity.
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Immunostimulatory activity of protein hydrolysate from oviductus ranae on macrophage in vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:180234. [PMID: 25610475 PMCID: PMC4283414 DOI: 10.1155/2014/180234] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 11/24/2014] [Accepted: 11/27/2014] [Indexed: 01/21/2023]
Abstract
Oviductus Ranae is the dry oviduct of Rana chensinensis, which is also called R. chensinensis oil. Oviductus Ranae is a valuable Chinese crude drug and is recorded in the Pharmacopoeia of the People's Republic of China. The aim of this study was to investigate the immunostimulatory activity of protein hydrolysate of Oviductus Ranae (ORPH) and to assess its possible mechanism. Immunomodulatory activity of ORPH was examined in murine macrophage RAW 264.7 cells. The effect of ORPH on the phagocytic activity of macrophages was determined by the neutral red uptake assay. After treatment with ORPH, NO production levels in the culture supernatant were investigated by Griess assay. The mRNA and protein expressions of inducible nitric oxide synthase (iNOS) were detected by RT-PCR and Western blotting. The production of TNF-α, IL-1β, and IL-6 after treatment with ORPH was measured using ELISA assay. In addition, NF-κB levels were also investigated by Western blot. The results showed that ORPH enhanced the phagocytosis of macrophage, increased productions of TNF-α, IL-1β, IL-6, and NO in RAW 264.7 cells, and upregulated the mRNA and protein expression of iNOS. Besides, NF-κB, levels in RAW 264.7 cells were elevated after ORPH treatment. These findings suggested that ORPH might stimulate macrophage activities by activating the NF-κB pathway.
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11
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Song H, Park JK, Kim HW, Lee WY. Effects of Egg White Consumption on Allergy, Immune Modulation, and Blood Cholesterol Levels in BALB/c Mice. Korean J Food Sci Anim Resour 2014; 34:630-7. [PMID: 26761497 PMCID: PMC4662225 DOI: 10.5851/kosfa.2014.34.5.630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/22/2014] [Accepted: 08/25/2014] [Indexed: 11/11/2022] Open
Abstract
We previously demonstrated that water-soluble egg yolk extract is not related to elevation of serum immunoglobulin E, which can initiate allergic reactions; however, it increases the level of high density lipoprotein (HDL)-cholesterol and the activity of B lymphocytes. In this study, egg white (EW) was fed to BALB/c mice to determine its influence on growth efficiency, immune modulation, and changes in serum lipid levels. A total of 50 five-wk-old BALB/c male mice were divided into 5 groups, 4 of which were fed 0, 10, 50, or 100 mg/d EW for 4 wk. Mice with an uptake of 10, 50 and 100 mg/d EW showed no significant changes in daily weight gain, feed efficiency rate, or populations of white blood cells. However, the activities of both B and T lymphocytes were significantly increased in all three EW groups at the final week of treatment. Interestingly, serum levels immunoglobulin E were not altered by EW consumption, but the IgG level was significantly increased in the 100 mg/d EW group. Serum lipid profile analyses showed no significant changes in total cholesterol, HDL, low density lipoprotein, or triglyceride levels by EW consumption. Taken together, these data demonstrate that consumption of EW promotes immune cell activities and the upregulation of serum IgG levels. However, we found no changes in serum lipid profiles and IgE levels. Therefore, our study suggests that consumption of EW might not be related to the risk of food allergy, but could be an excellent candidate for the maintenance of physiological homeostasis.
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Affiliation(s)
- Hyuk Song
- Division of Food Bioscience, RIBH, College of Biomedical & Health Science, Konkuk University, Chung-ju 380-701, Korea
| | - Jin-Ki Park
- National Institute of Animal Science, RDA, Suwon 441-706, Korea
| | - Hyoun Wook Kim
- National Institute of Animal Science, RDA, Suwon 441-706, Korea
| | - Won-Young Lee
- Division of Food Bioscience, RIBH, College of Biomedical & Health Science, Konkuk University, Chung-ju 380-701, Korea
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Duan X, Zhou Y, Li M, Wu F, Yang N, Xu J, Chen H, Jin Z, Xu X. Postfertilization changes in conformation of egg yolk phosvitin and biological activities of phosphopeptides. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.05.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Duan X, Wu F, Li M, Yang N, Wu C, Jin Y, Yang J, Jin Z, Xu X. Naturally occurring angiotensin I-converting enzyme inhibitory peptide from a fertilized egg and its inhibitory mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5500-5506. [PMID: 24866326 DOI: 10.1021/jf501368a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study was performed to investigate the angiotensin I-converting enzyme (ACE) inhibitory activity of peptides derived from fertilized eggs and elucidate the inhibition mechanism of these peptides. During incubation, ACE inhibitory activity of the peptides remained stable before day 12 and then increased markedly on day 15. Two ACE inhibitory peptides, VGVIKAVDKKAGGAGKVT and HLFGPPGKKDPV, were purified from peptides on day 15 by consecutive chromatography. Because HLFGPPGKKDPV possessed a higher ACE inhibitory activity (IC50 = 125 μM), an antihypertensive effect of this peptide was further evaluated in vivo. The result showed that this peptide had an antihypertensive effect in spontaneously hypertensive rats (SHRs) at a dosage of 10 mg/kg. Furthermore, Lineweaver-Burk plots suggested that HLFGPPGKKDPV played as a non-competitive inhibitor against ACE, as supported by docking simulation. These data indicated that a fertilized egg has potential as antihypertensive components in functional foods and nutraceuticals.
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Affiliation(s)
- Xiang Duan
- State Key Laboratory of Food Science and Technology, and ‡School of Food Science and Technology, Jiangnan University , 1800 Lihu Road, Wuxi Jiangsu 214122, People's Republic of China
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Duan X, Li M, Wu F, Yang N, Nikoo M, Jin Z, Xu X. Postfertilization changes in nutritional composition and protein conformation of hen egg. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:12092-12100. [PMID: 24251755 DOI: 10.1021/jf403099q] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Fertilized hen egg is traditionally considered as a dietary supplement in many Asian countries. This work aimed to obtain information on the effect of fertilization on total nutritional composition of egg contents and protein conformation. Chemical analysis showed that the lipid level in fertilized egg began to decrease after day 9. Fertilized egg before day 9 was higher in essential free amino acids (EFAA) and monounsaturated fatty acids (MUFA) contents but lower in cholesterol and polyunsaturated fatty acids (PUFA) than unfertilized counterparts. Fertilized egg proteins were characterized by an increase in hydrophobicity and a decrease in electrostatic interaction. Circular dichroism analysis showed that β-sheet decreased with increasing incubation time, whereas unordered structure increased. The findings observed in this work provide a crucial basis for understanding nutritional composition and protein conformation of fertilized egg, with the potential of being utilized as an EFAA/MUFA-rich, low-cholesterol dietary supplement.
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Affiliation(s)
- Xiang Duan
- State Key Laboratory of Food Science and Technology, Jiangnan University , Wuxi 214122, Jiangsu, China
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Lee WY, Lee R, Kim HC, Lee KH, Noh KS, Kim HW, Kim JH, Ahn DU, Jang IS, Jang A, Lee HT, Song H. Consumption of Water-Soluble Egg Yolk Extract on Growth Rate, Changes in Blood Cholesterol Levels, and Immune Modulation in BALB/c Mice. Korean J Food Sci Anim Resour 2013. [DOI: 10.5851/kosfa.2013.33.5.587] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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