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Yan Y, You FH, Zeng MM, Chen J, Huang JJ, Jiang J. Evaluating the effects of temperature and time on heterocyclic aromatic amine profiles in roasted pork using combined UHPLC-MS/MS and multivariate analysis. Food Res Int 2021; 141:110134. [PMID: 33642001 DOI: 10.1016/j.foodres.2021.110134] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/27/2020] [Accepted: 01/08/2021] [Indexed: 01/19/2023]
Abstract
In this study, ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) combined with principal component analysis (PCA) were used to investigate the effects of process conditions on the profiles of carcinogenic and mutagenic heterocyclic aromatic amine (HAA) in the pork roasted at 175 °C, 200 °C, 225 °C and 250 °C for 10, 15, 20, 25, 30, 35 and 40 min. Twelve HAAs from four categories, including carboline (Norharman, Harman, and Phe-p-1), imidazopyridine (PhIP, 4'-OH-PhIP, DMIP, and 1,5,6-TMIP), imidazoquinoline (IQ, IQ [4,5-b], and MeIQ), and imidazoquinoxaline (MeIQx and 4,8-DiMeIQx), were detected, quantified and used to compose the HAA profiles in roasted pork. After being Analyzed by PCA, the distributions of HAA profiles from different temperature on the PCA score plot demonstrated that there are significant differences among the HAA profiles from different temperatures. The loading plot also showed that PhIP, 4'-OH-PhIP, IQ[4,5-b], and MeIQ were mainly responsible for the difference. The profiles from higher temperature distribute more scattered than the lower ones, illustrating that the time effects on the HAA profiles from higher temperature are stronger than the lower ones. Comparing the score and loading plots of different heating times, the diversities of the HAA profiles at different temperatures increased under prolonged heating because of the changingpyridines levels. The results of PCA that comparing the HAA from different categories displayed that the formation features of four categories HAAs were significantly differed because of their formation discrepancy under low temperatures and short-term roasting. Using HAA profiles as an entirety, these findings obtained in this study are more close to the real process of HAA formation in roasted pork, and make the complex effects of temperature and time on multiple HAA formations more simply to be concluded.
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Affiliation(s)
- Yan Yan
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei 230031, China.
| | - Feng-Hui You
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei 230031, China
| | - Mao-Mao Zeng
- Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jie Chen
- Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jing-Jing Huang
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei 230031, China
| | - Jian Jiang
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei 230031, China.
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Ling Z, Dayong C, Denggao Y, Yiting W, Liaoqiong F, Zhibiao W. Escherichia Coli Outer Membrane Vesicles Induced DNA Double-Strand Breaks in Intestinal Epithelial Caco-2 Cells. Med Sci Monit Basic Res 2019; 25:45-52. [PMID: 30739907 PMCID: PMC6381811 DOI: 10.12659/msmbr.913756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Recent studies have shown that Escherichia coli induced digestive tract diseases may be related to outer membrane vesicles (OMVs) induced intestinal double-strand breaks (DSBs) in intestinal epithelial cells. This study aimed to compare the impact of OMVs forces on DSBs in intestinal epithelial Caco-2 cells, and provide a new treatment for digestive diseases caused by E. coli. Material/Methods E.coli OMVs were prepared and co-cultured with Caco-2 cells. The uptake of OMVs by Caco-2 cells was observed by confocal microscopy. The γ-H2AX protein was detected by western-blots. The DSBs caused by OMVs was detected by single cell gel electrophoresis. Results The particle size analyzer showed that the average diameters of OMVs centrifuged at 20 000×g and 50 000×g were 217.5±7.29 nm and 186.3±6.59 nm (P<0.05), respectively. Transmission electron microscopy of the OMVs revealed a lipid bilayer structure with a variety of different sizes. Confocal fluorescence microscopy revealed that OMVs almost completely entered Caco-2 cells after 24 hours. The ratio of γ-H2AX protein band gray value normalized data in the OMVs centrifuged at 20 000×g and 50 000×g, and the control group (without OMVs) were 2.23±0.18, 1.58±0.20, 1±0.30 (P<0.05), respectively, while DNA levels of the comet tail (TailDNA%, TDNA%) were 72.21±14.61%, 23.11±4.98%, and 1.02±1.41% (P<0.05), respectively. The corresponding DNA damage was categorized as high (grade 3), moderate (grade 2), and no damage (grade 0). Conclusions Different sizes of OMVs induced different degrees of DNA damage in intestinal epithelial Caco-2 cells.
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Affiliation(s)
- Zhou Ling
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
| | - Chen Dayong
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
| | - Yu Denggao
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
| | - Wang Yiting
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
| | - Fang Liaoqiong
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
| | - Wang Zhibiao
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China (mainland)
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Wang MG, Fan RF, Li WH, Zhang D, Yang DB, Wang ZY, Wang L. Activation of PERK-eIF2α-ATF4-CHOP axis triggered by excessive ER stress contributes to lead-induced nephrotoxicity. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:713-726. [PMID: 30528975 DOI: 10.1016/j.bbamcr.2018.12.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/07/2018] [Accepted: 12/01/2018] [Indexed: 12/11/2022]
Abstract
Lead (Pb) is a known nephrotoxicant that causes damage to proximal tubular cells. PERK pathway plays an important role in the pathogenesis of renal diseases, but its role in Pb-induced nephrotoxicity remains largely unknown. In this study, data showed that Pb could induce ER stress as shown by increased phosphorylation of PERK with subsequent activation of the eIF2α-ATF4-CHOP axis in primary rat proximal tubular (rPT) cells, indicating the activation of PERK-eIF2α-ATF4-CHOP pathway due to excessive ER stress. Pb-activated PERK pathway can be effectively inhibited by 4-phenylbutyric acid and PERK gene silencing, respectively; whereas continuously up-regulated by tunicamycin (TM) treatment. Moreover, Pb-induced apoptosis and inhibition of autophagic flux in rPT cells were significantly augmented and aggravated by co-treatment with TM, respectively. Pharmacological or genetic inhibition of the PERK pathway results in alleviation of apoptosis and restoration of autophagy inhibition in Pb-exposed rPT cells. Mechanistically, activation of PERK-eIF2α-ATF4-CHOP axis triggered by excessive ER stress in rPT cells leads to Pb-induced apoptosis and blockage of autophagic flux, resulting in nephrotoxicity.
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Affiliation(s)
- Min-Ge Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Wen-Hui Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Dong Zhang
- Shandong Provincial Center for Animal Disease Control and Prevention, Ji'nan City, Shandong Province 250022, China
| | - Du-Bao Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China.
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Fuccelli R, Rosignoli P, Servili M, Veneziani G, Taticchi A, Fabiani R. Genotoxicity of heterocyclic amines (HCAs) on freshly isolated human peripheral blood mononuclear cells (PBMC) and prevention by phenolic extracts derived from olive, olive oil and olive leaves. Food Chem Toxicol 2018; 122:234-241. [PMID: 30321573 DOI: 10.1016/j.fct.2018.10.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/09/2018] [Accepted: 10/11/2018] [Indexed: 01/31/2023]
Abstract
In this study we investigated the genotoxic potential of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine, (PhIP); 2-amino-3-methyl-3H-imidazo[4,5-f]quinoline, (IQ); 2-amino-3,8-dimethyl-imidazo[4,5-f]quinoxaline, (MeIQx) and 2-amino-3,4,8-trimethyl-3H-imidazo[4,5-f]quinoxaline (DiMeIQx) on human freshly isolated peripheral blood mononuclear cells (PBMC) by the comet assay. The preventive ability of three different phenolic extracts derived from olive (O-PE), virgin olive oil (OO-PE) and olive leaf (OL-PE) on PhIP induced DNA damage was also investigated. PhIP and IQ induced a significant DNA damage at the lowest concentration tested (100 μM), while the genotoxic effect of MeIQx and DiMeIQx become apparent only in the presence of DNA repair inhibitors Cytosine b-D-arabinofuranoside and Hydroxyurea (AraC/HU). The inclusion of metabolic activation (S9-mix) in the culture medium increased the genotoxicity of all HCAs tested. All three phenolic extracts showed an evident DNA damage preventive activity in a very low concentration range (0.1-1.0 μM of phenols) which could be easily reached in human tissues "in vivo" under a regular intake of virgin olive oil. These data further support the observation that consumption of olive and virgin olive oil may prevent the initiation step of carcinogenesis. The leaf waste could be an economic and simple source of phenolic compounds to be used as food additives or supplements.
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Affiliation(s)
- Raffaela Fuccelli
- Department of Chemistry, Biology and Biotechnology (Biochemistry and Molecular Biology Unit), via del Giochetto, 06126, Perugia, University of Perugia, Italy
| | - Patrizia Rosignoli
- Department of Chemistry, Biology and Biotechnology (Biochemistry and Molecular Biology Unit), via del Giochetto, 06126, Perugia, University of Perugia, Italy
| | - Maurizio Servili
- Department of Agricultural, Food and Environmental Science (Food Science and Technology Unit), via S. Costanzo, 06126, Perugia, University of Perugia, Italy
| | - Gianluca Veneziani
- Department of Agricultural, Food and Environmental Science (Food Science and Technology Unit), via S. Costanzo, 06126, Perugia, University of Perugia, Italy
| | - Agnese Taticchi
- Department of Agricultural, Food and Environmental Science (Food Science and Technology Unit), via S. Costanzo, 06126, Perugia, University of Perugia, Italy.
| | - Roberto Fabiani
- Department of Chemistry, Biology and Biotechnology (Biochemistry and Molecular Biology Unit), via del Giochetto, 06126, Perugia, University of Perugia, Italy.
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Wang XY, Wang ZY, Zhu YS, Zhu SM, Fan RF, Wang L. Alleviation of cadmium-induced oxidative stress by trehalose via inhibiting the Nrf2-Keap1 signaling pathway in primary rat proximal tubular cells. J Biochem Mol Toxicol 2017; 32. [DOI: 10.1002/jbt.22011] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 10/17/2017] [Accepted: 10/27/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Xin-Yu Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Yi-Song Zhu
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Si-Ming Zhu
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
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Wang MG, Li WH, Wang XY, Yang DB, Wang ZY, Wang L. CaMKII is involved in subcellular Ca 2+ redistribution-induced endoplasmic reticulum stress leading to apoptosis in primary cultures of rat proximal tubular cells exposed to lead. Oncotarget 2017; 8:91162-91173. [PMID: 29207633 PMCID: PMC5710913 DOI: 10.18632/oncotarget.20035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 07/25/2017] [Indexed: 11/30/2022] Open
Abstract
Lead (Pb) is a known nephrotoxic element. Recently we have proved that subcellular Ca2+ redistribution is involved in Pb-induced apoptosis in primary cultures of rat proximal tubular (rPT) cells, but the underlying mechanism remains to be elucidated. Firstly, data showed that Pb triggers endoplasmic reticulum (ER) stress response in rPT cells, as evidenced by the elevations of ER stress markers. Moreover, pharmacological modulation of Ca2+ mobilization in ER and cytoplasm with three chemicals (2-APB or TG or BAPTA-AM) can effectively increase or decrease the protein expression of ER stress markers in Pb-exposed rPT cells, demonstrating that Pb-induced ER stress is Ca2+-dependent. We found that Pb stimulates phosphorylation of calcium/calmodulin-dependent protein kinase II (CaMKII) to activate its activity. Meanwhile, inhibition of CaMKII with KN93 or KN62 attenuated Pb-activated caspase-12 and CCAAT/enhancer-binding protein homologous protein (CHOP) in rPT cells, demonstrating that CaMKII activation promoted ER stress in rPT cells. Likewise, Pb-induced apoptosis can be effectively inhibited by CaMKII inhibitor KN93 or KN62. Furthermore, co-treatment with KN93 or KN62 significantly reversed Pb-induced ER Ca2+ release and concomitant intracellular Ca2+ overload in rPT cells. In summary, these results expound the mechanisms involving in ER stress, Ca2+ dyshomeostasis and activated CaMKII, which all contribute to Pb-induced apoptosis. CaMKII acts as a critical mediator of ER stress and associated apoptosis via regulating intracellular Ca2+ mobilization from ER to cytoplasm.
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Affiliation(s)
- Min-Ge Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Wen-Hui Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Xin-Yu Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Du-Bao Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
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Villena J, Aso H, Kitazawa H. Regulation of toll-like receptors-mediated inflammation by immunobiotics in bovine intestinal epitheliocytes: role of signaling pathways and negative regulators. Front Immunol 2014; 5:421. [PMID: 25228903 PMCID: PMC4151153 DOI: 10.3389/fimmu.2014.00421] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 08/19/2014] [Indexed: 12/13/2022] Open
Abstract
Intestinal epithelial cells (IECs) detect bacterial and viral associated molecular patterns via germline-encoded pattern-recognition receptors (PRRs) and are responsible for maintaining immune tolerance to the communities of resident commensal bacteria while being also capable to mount immune responses against pathogens. Toll-like receptors (TLRs) are a major class of PRRs expressed on IECs and immune cells, which are involved in the induction of both tolerance and inflammation. In the last decade, experimental and clinical evidence was generated to support the application of probiotics with immunoregulatory capacities (immunobiotics) for the prevention and treatment of several gastrointestinal inflammatory disorders in which TLRs exert a significant role. The majority of these studies were performed in mouse and human cell lines, and despite the growing interest in the bovine immune system due to the economic importance of cattle as livestock, only few studies have been conducted on cattle. In this regard, our group has established a bovine intestinal epithelial (BIE) cell line originally derived from fetal bovine intestinal epitheliocytes and used this cell line to evaluate the impact of immunobiotics in TLR-mediated inflammation. This review aims to summarize the current knowledge of the beneficial effects of immunobiotics in the regulation of intestinal inflammation/infection in cattle. Especially, we discuss the role of TLRs and their negative regulators in both the inflammatory response and the beneficial effects of immunobiotics in bovine IECs. This review article emphasizes the cellular and molecular interactions of immunobiotics with BIE cells through TLRs and gives the scientific basis for the development of immunomodulatory feed for bovine healthy development.
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Affiliation(s)
- Julio Villena
- Immunobiotics Research Group , Tucuman , Argentina ; Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET) , Tucuman , Argentina
| | - Hisashi Aso
- Cell Biology Laboratory, Graduate School of Agricultural Science, Tohoku University , Sendai , Japan
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University , Sendai , Japan
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Plant-derived antimicrobials reduce E. coli O157:H7 virulence factors critical for colonization in cattle gastrointestinal tract in vitro. BIOMED RESEARCH INTERNATIONAL 2014; 2014:212395. [PMID: 25050328 PMCID: PMC4090510 DOI: 10.1155/2014/212395] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 05/31/2014] [Indexed: 12/30/2022]
Abstract
This study investigated the effect of subinhibitory concentrations (SIC) of five plant-derived antimicrobials (PDAs), namely, trans cinnamaldehyde, eugenol, carvacrol, thymol, and β-resorcylic acid, on E. coli O157:H7 (EHEC) attachment and invasion of cultured bovine colonic (CO) and rectoanal junction (RAJ) epithelial cells. In addition, PDAs' effect on EHEC genes critical for colonization of cattle gastrointestinal tract (CGIT) was determined in bovine rumen fluid (RF) and intestinal contents (BICs). Primary bovine CO and RAJ epithelial cells were established and were separately inoculated with three EHEC strains with or without (control) SIC of each PDA. Following incubation, EHEC that attached and invaded the cells were determined. Furthermore, the expression of EHEC genes critical for colonization in cattle was investigated using real-time, quantitative polymerase chain reaction in RF and BICs. All the PDAs decreased EHEC invasion of CO and RAJ epithelial cells (P < 0.05). The PDAs also downregulated (P < 0.05) the expression of EHEC genes critical for colonization in CGIT. Results suggest that the PDAs could potentially be used to control EHEC colonization in cattle; however follow-up in vivo studies in cattle are warranted.
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Influence of extra virgin olive oil on the formation of heterocyclic amines in roasted beef steak. Food Sci Biotechnol 2011. [DOI: 10.1007/s10068-011-0022-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Sohn SH, Ko E, Chung HS, Lee EY, Kim SH, Shin M, Hong M, Bae H. The genome-wide expression profile of Curcuma longa-treated cisplatin-stimulated HEK293 cells. Br J Clin Pharmacol 2010; 70:547-56. [PMID: 20840446 DOI: 10.1111/j.1365-2125.2010.03724.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM The rhizome of turmeric, Curcuma longa (CL), is a herbal medicine used in many traditional prescriptions. It has previously been shown that CL treatment showed greater than 47% recovery from cisplatin-induced cell damage in human kidney HEK 293 cells. This study was conducted to evaluate the recovery mechanisms of CL that occur during cisplatin induced nephrotoxicity by examining the genome wide mRNA expression profiles of HEK 293 -cells. METHOD Recovery mechanisms of CL that occur during cisplatin-induced nephrotoxicity were determined by microarray, real-time PCR, immunofluorescent confocal microscopy and Western blot analysis. RESULTS The results of microarray analysis and real-time PCR revealed that NFκB pathway-related genes and apoptosis-related genes were down-regulated in CL-treated HEK 293 cells. In addition, immunofluorescent confocal microscopy and Western blot analysis revealed that NFκB p65 nuclear translocation was inhibited in CL-treated HEK 293 cells. Therefore, the mechanism responsible for the effects of CL on HEK 293 cells is closely associated with regulation of the NFκB pathway. CONCLUSION CL possesses novel therapeutic agents that can be used for the prevention or treatment of cisplatin-induced renal disorders.
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Affiliation(s)
- Sung-Hwa Sohn
- Department of Physiology, College of Oriental Medicine Department of Oriental Pathology, College of Oriental Medicine, KyungHee University, Seoul 130-701, Republic of Korea
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Bridger PS, Mohr M, Stamm I, Fröhlich J, Föllmann W, Birkner S, Metcalfe H, Werling D, Baljer G, Menge C. Primary bovine colonic cells: a model to study strain-specific responses to Escherichia coli. Vet Immunol Immunopathol 2010; 137:54-63. [PMID: 20471109 DOI: 10.1016/j.vetimm.2010.04.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 04/15/2010] [Accepted: 04/15/2010] [Indexed: 11/27/2022]
Abstract
The parasitic or commensal lifestyle of bacteria in different hosts depends on specific molecular interactions with the respective host species. In vitro models to study intestinal bacteria-host interactions in cattle are not available. Bovine primary colonocyte (PC) cultures were generated from colon crypt explants. Up to day 4 of culture, the vast majority of cells were of epithelial phenotype (i.e., expressed cytokeratin but not vimentin). PCs harboured mRNA specific for Toll-like receptors (TLR) 1, TLR3, TLR4 and TLR6 but not for TLR2, TLR5, TLR7, TLR8, TLR9 and TLR10. Six hours after inoculation of PC cultures with Escherichia coli (E. coli) prototype strains representing different pathovars (enterohaemorrhagic E. coli [EHEC], enteropathogenic E. coli [EPEC], enterotoxic E. coli [ETEC]), bacteria were found attached to the cells. EPEC adhesion was accompanied by intracellular actin accumulation. An attenuated laboratory strain (E. coli K12 C600) and a bovine commensal E. coli strain (P391) both did not adhere. Bacterial or LPS challenge of PC cultures resulted in specific increases in mRNA transcripts for IL-8, GRO-alpha, MCP-1, RANTES, and IL-10. The level of mRNA transcripts for TGF-beta stayed constant, while IL-12 mRNA was not detectable. Short-term cultures of PCs, maintaining epithelial cell properties, interacted with commensal and pathogenic bacteria in a strain-specific manner and have proven to be a useful in vitro model to study the interaction of bacteria with the bovine intestinal mucosa.
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Affiliation(s)
- Philip Simon Bridger
- Institute for Hygiene and Infectious Diseases of Animals, Justus-Liebig-University, D-35392 Giessen, Germany
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12
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Kim S, Lee KG. Effects of cooking variables on formation of heterocyclic amines (HCA) in roasted pork and mackerel. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2010; 73:1599-1609. [PMID: 20954084 DOI: 10.1080/15287394.2010.511585] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The aim of this study was to evaluate the effects of cooking temperature, time, and water content on the formation of heterocyclic amines (HCA) in roasted pork and mackerel using a kinetic model. The levels of 2-amino-6-methyldipiryd[1,2-a:3',2'-d]imidazole (Glu-p-1), 1-methyl-9H-pyrido[4,3-b]-indol (harman), 9H-pyrido[4,3-b]-indol (norharman), and 2-amino-1-methyl-6-phenylimidazo [4,5-b] pyridine (PhIP) in pork and mackerel rose with increasing cooking temperature and time. The concentration of PhIP ranged from 6 to 54 ng/g in roasted pork and was the HCA most sensitive to cooking temperature and time. In the roasted mackerel, levels of harman and norharman increased markedly at 230°C. The kinetics of HCA generation followed first-order reaction (A = A(0) × e(-kt)). In roasted pork, activation enthalpies (ΔH) ranged from 10.3 to 41.6 kJ/mol, whereas in roasted mackerel, ΔH ranged from 12.3 to 49.3 kJ/mol. The activation entropies (ΔS) were less than zero for all HCA, ranging from -159 to -309 kJ/mol-K. The data of the kinetic parameters may be used to predict the formation and temperature sensitivity of HCA in roasted pork and mackerel.
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Affiliation(s)
- Simhae Kim
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Seoul, Republic of Korea
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13
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Sohn SH, Ko E, Jo Y, Kim SH, Kim Y, Shin M, Hong M, Bae H. The genome-wide expression profile of Paeonia suffruticosa-treated cisplatin-stimulated HEK 293 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2009; 28:453-458. [PMID: 21784042 DOI: 10.1016/j.etap.2009.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 07/24/2009] [Accepted: 08/04/2009] [Indexed: 05/31/2023]
Abstract
The root cortex of Paeonia suffruticosa Andrews (PS) is a crude Chinese drug used in many traditional prescriptions. This study was conducted to evaluate the recovery mechanisms induced by PS in HEK 293 cells treated with cisplatin. Previous studies revealed that 1μg/ml PS treatment showed greater than 20% recovery of 14μM cisplatin-induced 50% loss of cell proliferation (IC(50)) determined by mitochondrial activity MTS assay in HEK 293 cells (Sohn et al., 2009). In the present study, the effects of PS on gene expression profiles in stimulated HEK 293 cells were evaluated by oligonucleotide microarray and real-time RT-PCR. The results of the microarray analysis and real-time RT-PCR revealed that DNA repair- and cell proliferation-related genes were up-regulated in PS-treated HEK 293 cells. The mechanism responsible for the effects of PS on HEK 293 cells is closely associated with the regulation of DNA repair and cell proliferation. Thus, PS possesses novel therapeutic potential that could be used for the prevention or treatment of cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Sung-Hwa Sohn
- Department of Physiology, College of Oriental Medicine, Kyung Hee University, 1, Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Republic of Korea
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14
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Sohn SH, Lee H, Nam JY, Kim SH, Jung HJ, Kim Y, Shin M, Hong M, Bae H. Screening of herbal medicines for the recovery of cisplatin-induced nephrotoxicity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2009; 28:206-212. [PMID: 21784004 DOI: 10.1016/j.etap.2009.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 04/03/2009] [Accepted: 04/07/2009] [Indexed: 05/31/2023]
Abstract
The goal of this study was to quantitatively determine the recovery effects of herbal medicines (HM) on the cisplatin-induced nephrotoxicity. In the present study, the recovery effects of 239 HM on HEK 293 cells that had been damaged by cisplatin were evaluated by a mitochondrial activity MTS assay. After the first round of screening, candidate HM were selected based on a recovery rate of greater than 20%. The efficacy of the selected herbs was then determined by dose response kinetic analysis. Of the extracts evaluated, 7 HM (Paeonia suffruticosa (PS), Curcuma longa (CL), Centipeda minima (CM), Loranthus parasiticus (LP), Pulsatilla dahurica (PD), Sinapis alba (SA), and Scutellaria barbata (SB)) had a strong recovery effect on cisplatin-induced damage in HEK 293 cells. An LDH assay showed that LP, CM, SB, CL, SA, and PS had the best recovery effect, whereas a comet assay indicated that PS, SB, SA, PD, and CL had the best recovery effect. Taken together, these results suggest that SB, CL, PS, and SA are the best candidate HM for the recovery of cisplatin-induced nephrotoxicity. Therefore, additional studies should be conducted to determine if these HM possess novel therapeutic agents that can be used for the prevention or treatment of renal disorders.
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Affiliation(s)
- Sung-Hwa Sohn
- BK21 Oriental Medical Science Center, KyungHee University, Seoul 130-701, Republic of Korea
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