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Nie C, Lan J, Guo H, Ouyang Q, Zhao Y, Wang P, Wang R, Li Y, Wang X, Fang B, Zhan J, Zhu L, Chen C, Zhang W, Liao H, Liu R. Codonopsis pilosula polysaccharides (CPP) intervention alleviates sterigmatocystin (STC)-induced liver injury and gut microbiota dysbiosis. Int J Biol Macromol 2024:133190. [PMID: 38897503 DOI: 10.1016/j.ijbiomac.2024.133190] [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: 12/01/2023] [Revised: 05/12/2024] [Accepted: 06/13/2024] [Indexed: 06/21/2024]
Abstract
Codonopsis pilosula polysaccharides (CPP), the main active ingredient of Codonopsis pilosula, has gained significant attention as a liver-protective agent. Previous studies have demonstrated that CPP could alleviate gut microbiota dysbiosis in colitis or obese mice. However, the effects of CPP on mycotoxin-induced liver injury and gut microbiota dysbiosis are still poorly understood. In this study, we aimed to investigate the protective effects of CPP on sterigmatocystin (STC)-induced liver injury, as well as its regulatory effects on gut microbiota. Our results revealed that CPP intervention significantly alleviated STC-induced liver injury, as evidenced by decreased liver index, reduced liver histopathological changes, and modulation of related molecular markers. Additionally, we found that CPP could alleviate liver injury by reducing liver inflammation and oxidative stress, inhibiting hepatocyte apoptosis, and regulating lipid metabolism. Notably, we also observed that CPP could alleviate STC-induced gut microbiota dysbiosis by modulating the diversity and richness of gut microbiota, suggesting that gut microbiota modulation may also serve as a mechanism for CPP-mediated remission of liver injury. In summary, our study not only provided a new theoretical basis for understanding the hepatotoxicity of STC and the protective effects of CPP against STC-induced liver injury, but also provided new perspectives for the application of CPP in the fields of food, healthcare products, and medicine.
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Affiliation(s)
- Chao Nie
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Jie Lan
- Department of Bioinformatics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Haiying Guo
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Qinqin Ouyang
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Yunyi Zhao
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Pengjie Wang
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Ran Wang
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Yixuan Li
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Xifan Wang
- Department of Obstetrics and Gynecology, Columbia University, New York, NY 10032, USA
| | - Bing Fang
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Jing Zhan
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Longjiao Zhu
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Chong Chen
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Weibo Zhang
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Haiping Liao
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Rong Liu
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; Food Laboratory of Zhongyuan, Luohe 462000, China.
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Almanaa TN, Alwetaid MY, Bakheet SA, Attia SM, Ansari MA, Nadeem A, Ahmad SF. Aflatoxin B 1 exposure deteriorates immune abnormalities in a BTBR T + Itpr3 tf/J mouse model of autism by increasing inflammatory mediators' production in CD19-expressing cells. J Neuroimmunol 2024; 391:578365. [PMID: 38723577 DOI: 10.1016/j.jneuroim.2024.578365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 06/09/2024]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by deficiencies in communication, repetitive and stereotyped behavioral patterns, and difficulties in reciprocal social engagement. The presence of immunological dysfunction in ASD has been well established. Aflatoxin B1 (AFB1) is a prevalent mycotoxin found in food and feed, causing immune toxicity and hepatotoxicity. AFB1 is significantly elevated in several regions around the globe. Existing research indicates that prolonged exposure to AFB1 results in neurological problems. The BTBR T+ Itpr3tf/J (BTBR) mice, which were used as an autism model, exhibit the primary behavioral traits that define ASD, such as repeated, stereotyped behaviors and impaired social interactions. The main objective of this work was to assess the toxic impact of AFB1 in BTBR mice. This work aimed to examine the effects of AFB1 on the expression of Notch-1, IL-6, MCP-1, iNOS, GM-CSF, and NF-κB p65 by CD19+ B cells in the spleen of the BTBR using flow cytometry. We also verified the impact of AFB1 exposure on the mRNA expression levels of Notch-1, IL-6, MCP-1, iNOS, GM-CSF, and NF-κB p65 in the brain of BTBR mice using real-time PCR. The findings of our study showed that the mice treated with AFB1 in the BTBR group exhibited a substantial increase in the presence of CD19+Notch-1+, CD19+IL-6+, CD19+MCP-1+, CD19+iNOS+, CD19+GM-CSF+, and CD19+NF-κB p65+ compared to the mice in the BTBR group that were treated with saline. Our findings also confirmed that administering AFB1 to BTBR mice leads to elevated mRNA expression levels of Notch-1, IL-6, MCP-1, iNOS, GM-CSF, and NF-κB p65 in the brain, in comparison to BTBR mice treated with saline. The data highlight that exposure to AFB1 worsens immunological abnormalities by increasing the expression of inflammatory mediators in BTBR mice.
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Affiliation(s)
- Taghreed N Almanaa
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Y Alwetaid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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Alwetaid MY, Almanaa TN, Bakheet SA, Ansari MA, Nadeem A, Attia SM, Hussein MH, Attia MSM, Ahmad SF. Aflatoxin B 1 exposure exacerbates chemokine receptor expression in the BTBR T + Itpr3 tf/J Mouse Model, unveiling insights into autism spectrum disorder: A focus on brain and spleen. Reprod Toxicol 2024; 126:108599. [PMID: 38679149 DOI: 10.1016/j.reprotox.2024.108599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 05/01/2024]
Abstract
OBJECTIVE Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by significant difficulties in social interaction, communication, and repeated stereotypic behaviour. Aflatoxin B1 (AFB1) is the most potent and well-known mycotoxin in various food sources. Despite its propensity to generate significant biochemical and structural changes in human and animal tissues, the influence of AFB1 on ASD has yet to be thoroughly studied. Mounting evidence indicates that chemokine receptors play a crucial function in the central nervous system and are implicated in developing several neuroinflammatory disorders. Chemokine receptors in individuals with ASD were elevated in the anterior cingulate gyrus astrocytes, cerebellum, and brain. METHODS The BTBR T+Itpr3tf/J (BTBR) mice are inbred strains that exhibit strong and consistently observed deficits in social interactions, characterized by excessive self-grooming and limited vocalization in social contexts. We examined the impact of AFB1 on CCR3-, CCR7-, CCR9-, CXCR3-, CXCR4-, and CXCR6-expressing I-A/I-E+ cells in the spleen of the BTBR mouse model of autism. We evaluated the mRNA levels of CCR3, CCR7, CCR9, CXCR3, CXCR4, and CXCR6 chemokine receptors in the brain. RESULTS The exposure to AFB1 in BTBR mice resulted in a significant rise in the number of I-A/I-E+CCR3+, I-A/I-E+CCR7+, I-A/I-E+CCR9+, I-A/I-E+CXCR3+, I-A/I-E+CXCR4+, and I-A/I-E+CXCR6+ cells. Furthermore, exposure to AFB1 increased mRNA expression levels of CCR3, CCR7, CCR9, CXCR3, CXCR4, and CXCR6 in the brain. CONCLUSIONS These findings highlight that AFB1 exposure increases the expression of chemokine receptors in BTBR mice, indicating the necessity for further research into AFB1's role in the development of ASD.
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Affiliation(s)
- Mohammad Y Alwetaid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Taghreed N Almanaa
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Marwa H Hussein
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed S M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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Pożarska A, Karpiesiuk K, Kozera W, Czarnik U, Dąbrowski M, Zielonka Ł. AFB1 Toxicity in Human Food and Animal Feed Consumption: A Review of Experimental Treatments and Preventive Measures. Int J Mol Sci 2024; 25:5305. [PMID: 38791343 PMCID: PMC11121597 DOI: 10.3390/ijms25105305] [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: 03/28/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
AIMS The current review aims to outline and summarize the latest research on aflatoxin, with research studies describing natural, herbal and chemical compound applications in animal (pig) models and in vitro cellular studies. Aflatoxin, a carcinogenic toxin metabolite, is produced by Aspergillus flavus in humid environments, posing a threat to human health and crop production. The current treatment involves the prevention of exposure to aflatoxin and counteracting its harmful toxic effects, enabling survival and research studies on an antidote for aflatoxin. OBJECTIVES To summarize current research prospects and to outline the influence of aflatoxin on animal forage in farm production, food and crop processing. The research application of remedies to treat aflatoxin is undergoing development to pinpoint biochemical pathways responsible for aflatoxin effects transmission and actions of treatment. SIGNIFICANCE To underline the environmental stress of aflatoxin on meat and dairy products; to describe clinical syndromes associated with aflatoxicosis on human health that are counteracted with proposed treatment and preventive interventions. To understand how to improve the health of farm animals with feed conditions.
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Affiliation(s)
- Agnieszka Pożarska
- Department of Pig Breeding, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Krzysztof Karpiesiuk
- Department of Pig Breeding, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Wojciech Kozera
- Department of Pig Breeding, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Urszula Czarnik
- Department of Pig Breeding, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Michał Dąbrowski
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-718 Olsztyn, Poland
| | - Łukasz Zielonka
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-718 Olsztyn, Poland
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Jalili C, Abbasi A, Rahmani-Kukia N, Andarzi S, Kakebaraie S, Zamir Nasta T. The relationship between aflatoxin B1 with the induction of extrinsic/intrinsic pathways of apoptosis and the protective role of taraxasterol in TM3 leydig cell line. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116316. [PMID: 38615640 DOI: 10.1016/j.ecoenv.2024.116316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 03/25/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Aflatoxins B1 (AFB1) a dangerous type of aflatoxin, poses a serious threat to human health. Meanwhile, Taraxasterol, a bioactive compound in dandelion, exhibits strong anti-inflammatory and antioxidant activity. Therefore, the aim of this study was to investigate the impact of AFB1 on the intrinsic and extrinsic pathways of apoptosis, as well as evaluate the protective role of taraxasterol in the TM3 Leydig cell line. Cell viability was evaluated using an MTT assay, measuring the effects of 3.6 µM AFB1 and varying concentrations of taraxasterol. Expression levels of Caspase 3,8, and 9 were analyzed with RT-qPCR, and flow cytometry was used to assess cell cycle progression and apoptotic alterations. The findings of this study demonstrated that exposure to 3.6 µM of AFB1 resulted in an upregulation of Caspase 3 and Caspase 9 expression, indicating an activation of apoptotic pathways in TM3 cells. Additionally, the analysis of apoptosis revealed a significant increase in cellular apoptosis at this AFB1 concentration. However, when TM3 cells were exposed to 5 µM of taraxasterol, a downregulation of Caspase 3 and Caspase 9 expression was observed, suggesting a protective effect against apoptosis. Moreover, the apoptotic rate in TM3 cells was reduced in the presence of 5 µM of taraxasterol. Consequently, this study highlights the potential of taraxasterol as a protective agent against AFB1-induced apoptosis and suggest its potential application in regulating cell survival and apoptosis-related processes. Further investigations are necessary to elucidate the underlying mechanisms and evaluate the clinical implications of taraxasterol in the context of fertility disorders and other conditions associated with AFB1 exposure.
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Affiliation(s)
- Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R, Iran
| | - Ardeshir Abbasi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nasim Rahmani-Kukia
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Salar Andarzi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Seyran Kakebaraie
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R, Iran
| | - Touraj Zamir Nasta
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R, Iran.
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Jalili C, Ranjbar Shamsi R, Amiri B, Kakebaraie S, Jalili F, Nasta TZ. Genotoxic and cytotoxic effects of aflatoxin on the reproductive system: Focus on cell cycle dynamics and apoptosis in testicular tissue. Toxicology 2024; 504:153773. [PMID: 38484789 DOI: 10.1016/j.tox.2024.153773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/24/2024]
Abstract
Aflatoxins (AFs) are inevitable environmental contaminants that are detrimental to human and animal health. AFs interfere with metabolic processes, metabolizing into different hydroxylated derivatives in the liver, as well as mechanistically induce ROS accumulation, S-phase arrest, DNA damage, and cell apoptosis. Chronic consumption of aflatoxin-contaminated foods can adversely affect the male reproductive system, cause testicular damage, prevent testosterone synthesis, decline sperm quality, and cause infertility. Oxidative stress is the fundamental pathogenesis of aflatoxin-induced reproductive toxicity. The overproduction of reactive oxygen substances can cause testicular failure and disturb the process of spermatogenesis. Mitochondria are susceptible to being impaired by oxidative stress, and its damage is associated with infertility. AFs also disturb the process of spermatogenesis by disrupting the regulation of genes related to the progression of the cell cycle such as cyclins and inducing genes related to apoptosis, thereby weakening fertility and negatively affecting the testicular endocrine potential by suppressing androgen synthesis. Additionally, AFs downregulate ERα expression, potentially negatively impacting spermatogenesis by enhancing the apoptotic mechanism. In this review, we provide new insights into the genotoxic and cytotoxic effects of AFB1 on the male reproductive system with a focus on the cell cycle and apoptosis destruction of testicular tissue.
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Affiliation(s)
- Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran
| | - Rahele Ranjbar Shamsi
- Department of Clinical Biochemistry, Faculty of Veterinary Medicine, Tabriz, Islamic Republic of Iran
| | - Bita Amiri
- Department of Chemistry and Biochemistry, University of Texas at Arlington, TX, USA
| | - Seyran Kakebaraie
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran
| | - Faramarz Jalili
- School of Health Administration, Faculty of Health, Dalhousie University, Halifax, NS, Canada
| | - Touraj Zamir Nasta
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran.
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Kumar M, Parveen, Raj N, Khatoon S, Fakhri KU, Kumar P, Alamri MA, Kamal M, Manzoor N, Harsha, Solanki R, Elossaily GM, Asiri YI, Hassan MZ, Kapur MK. In-silico and in-vitro evaluation of antifungal bioactive compounds from Streptomyces sp. strain 130 against Aspergillus flavus. J Biomol Struct Dyn 2024:1-19. [PMID: 38319066 DOI: 10.1080/07391102.2024.2313167] [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: 07/17/2023] [Accepted: 01/25/2024] [Indexed: 02/07/2024]
Abstract
Streptomyces spp. are considered excellent reservoirs of natural bioactive compounds. The study evaluated the bioactive potential of secondary metabolites from Streptomyces sp. strain 130 through PKS-I and NRPS gene-clusters screening. GC-MS analysis was done for metabolic profiling of bioactive compounds from strain 130 in the next set of experiments. Identified antifungal compounds underwent ADMET analyses to screen their toxicity. All compounds' molecular docking was done with the structural gene products of the aflatoxin biosynthetic pathway of Aspergillus flavus. MD simulations were utilized to evaluate the stability of protein-ligand complexes under physiological conditions. Based on the in-silico studies, compound 2,4-di-tert butyl-phenol (DTBP) was selected for in-vitro studies against Aspergillus flavus. Simultaneously, bioactive compounds were extracted from strain 130 in two different solvents (ethyl-acetate and methanol) and used for similar assays. The MIC value of DTBP was found to be 314 µg/mL, whereas in ethyl-acetate extract and methanol-extract, it was 250 and 350 µg/mL, respectively. A mycelium growth assay was done to analyze the effect of compounds/extracts on the mycelium formation of Aspergillus flavus. In agar diffusion assay, zone of inhibitions in DTBP, ethyl-acetate extract, and methanol extract were observed with diameters of 11.3, 13.3, and 7.6 mm, respectively. In the growth curve assay, treated samples have delayed the growth of fungi, which signified that the compounds have a fungistatic nature. Spot assay has determined the fungal sensitivity to a sub-minimum inhibitory concentration of antifungal compounds. The study's results suggested that DTBP can be exploited for antifungal-drug development.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Munendra Kumar
- Department of Zoology, Rajiv Gandhi University, Doimukh, India
| | - Parveen
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Nafis Raj
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Shabana Khatoon
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | | | - Prateek Kumar
- Department of Zoology, University of Allahabad, Prayagraj, India
| | - Mubarak A Alamri
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mehnaz Kamal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Nikhat Manzoor
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Harsha
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, India New Delhi
| | - Renu Solanki
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi, India
| | - Gehan M Elossaily
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Yahya I Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Mohd Zaheen Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Monisha Khanna Kapur
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, India New Delhi
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Lázaro Á, Frangiamone M, Maietti A, Cimbalo A, Vila-Donat P, Manyes L. Allium sativum L. var. Voghiera Reduces Aflatoxin B1 Bioaccessibility and Cytotoxicity In Vitro. Foods 2024; 13:487. [PMID: 38338622 PMCID: PMC10855818 DOI: 10.3390/foods13030487] [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: 01/10/2024] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
The present work focuses on the evaluation of AFB1's bioaccessibility and cytotoxicity in vitro using bread (naturally contaminated) enriched or not enriched with fresh Voghiera garlic (2%). Two different experiments were carried out: experiment 1 (E1), with low-AFB1-concentration breads (1.6-1.7 mg/kg); and experiment 2 (E2), with high-AFB1-concentration breads (96.4-102.7 mg/kg). Eight breads were prepared, four for E1 (experiment 1) and another four for E2 (experiment 2), with each experiment having a control group (C), a garlic-enriched group (2%) (G), an AFB1 group (A), and an AFB1 + garlic group (A + G). Simulated digestion was performed on each type of bread, and gastric and intestinal digests were obtained. AFB1 content in flours, baked bread, and gastric and intestinal digests was measured by High-Performance Liquid Chromatography coupled to Fluorescence Detection. The results demonstrate dose-dependent AFB1 bioaccessibility and that the presence of garlic contributed to its reduction in both doses (7-8%). Moreover, garlic's presence in AFB1-contaminated bread increased cell viability (9-18%) in differentiated Caco-2 cells and mitigated the arrest of S and G2/M phases provoked by AFB1 on Jurkat T cells and reduced apoptosis/necrosis, cellular reactive oxygen species (ROS), and mitochondrial ROS by 16%, 71%, and 24% respectively. The inclusion of garlic as a functional ingredient helped relieve the presence and effects of AFB1.
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Affiliation(s)
- Álvaro Lázaro
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Sciences, University of Valencia, 46100 Burjassot, Spain; (Á.L.); (M.F.); (P.V.-D.); (L.M.)
| | - Massimo Frangiamone
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Sciences, University of Valencia, 46100 Burjassot, Spain; (Á.L.); (M.F.); (P.V.-D.); (L.M.)
| | - Annalisa Maietti
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;
| | - Alessandra Cimbalo
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Sciences, University of Valencia, 46100 Burjassot, Spain; (Á.L.); (M.F.); (P.V.-D.); (L.M.)
| | - Pilar Vila-Donat
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Sciences, University of Valencia, 46100 Burjassot, Spain; (Á.L.); (M.F.); (P.V.-D.); (L.M.)
| | - Lara Manyes
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Sciences, University of Valencia, 46100 Burjassot, Spain; (Á.L.); (M.F.); (P.V.-D.); (L.M.)
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Sahoo M, Thakor JC, Kumar P, Singh R, Kumar P, Singh K, Puvvala B, Kumar A, Gopinathan A, Palai S, Patra S, Tripathy JP, Acharya R, Sahoo NR, Behera P. AFB1 induced free radicals cause encephalopathy in goat kids via intrinsic pathway of apoptosis: pathological and immunohistochemical confirmation of non-hepatic neuroaflatoxicosis. Vet Res Commun 2024; 48:317-327. [PMID: 37684400 DOI: 10.1007/s11259-023-10216-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/03/2023] [Indexed: 09/10/2023]
Abstract
Aflatoxins, particularly AFB1, are the most common feed contaminants worldwide, causing significant economic losses to the livestock sector. The current paper describes an outbreak of aflatoxicosis in a herd of 160 male young goat kids (3-4 months), of which 68 young kids succumbed over a period of 25 days after showing neurological signs of abnormal gait, progressive paralysis and head pressing. The haematobiochemical investigation showed reduced haemoglobin, leucocyte count, PCV level, increased levels of AST, ALT, glucose, BUN, creatinine and reduced level of total protein. Grossly, kids had pale mucous membranes, pale and swollen liver; right apical lobe consolidation, and petechiation of the synovial membrane of the hock joints. The microscopic changes were characterized by multifocal hemorrhages, status spongiosus/ vacuolation, vasculitis, focal to diffuse gliosis, satellitosis, and ischemic apoptotic neurons in different parts of the brain and spinal cord. These changes corresponded well with strong immunoreactivity for AFB1 in neurons, glia cells (oligodendrocytes, astrocytes, and ependymal cells) in various anatomical sites of the brain. The higher values of LPO and reduced levels of antioxidant enzymes (Catalase, SOD, GSH) with strong immunoreactivity of 8-OHdG in the brain indicating high level of oxidative stress. Further, the higher immunosignaling of caspase-3 and caspase-9 in the brain points towards the association with intrinsic pathway of apoptosis. The toxicological analysis of feed samples detected high amounts of AFB1 (0.38ppm). These findings suggest that AFB1 in younger goat kids has more of neurotoxic effect mediated through caspase dependent intrinsic pathway.
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Affiliation(s)
- Monalisa Sahoo
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243112, India.
- ICAR-ICFMD-National Institute on Foot and Mouth Disease, Arugul, Jatni, Bhubaneswar, Odisha, 752050, India.
| | - Jigarji Chaturji Thakor
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243112, India
| | - Pradeep Kumar
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243112, India
| | - Rajendra Singh
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243112, India
| | - Pawan Kumar
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243112, India
| | - Karampal Singh
- ICAR-CADRAD, Indian Veterinary Research Institute (IVRI), Izatnagar, India
| | - Bhavani Puvvala
- Division of Bacteriology & Mycology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, India
| | - Ajay Kumar
- ICAR- Division of Biochemistry, Indian Veterinary Research Institute (IVRI), Izatnagar, India
| | - Aswathy Gopinathan
- ICAR- Division of Surgery, Indian Veterinary Research Institute (IVRI), Izatnagar, India
| | - Santwana Palai
- ICAR- Department of Veterinary Pharmacology & Toxicology, College of Veterinary Science and Animal Husbandry, OUAT, Bhubaneswar, India
| | - Sushmita Patra
- Advance Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Jagannath Prasad Tripathy
- ICAR-ICFMD-National Institute on Foot and Mouth Disease, Arugul, Jatni, Bhubaneswar, Odisha, 752050, India
| | - Ramakant Acharya
- ICAR-ICFMD-National Institute on Foot and Mouth Disease, Arugul, Jatni, Bhubaneswar, Odisha, 752050, India
| | - Nihar Ranjan Sahoo
- ICAR-ICFMD-National Institute on Foot and Mouth Disease, Arugul, Jatni, Bhubaneswar, Odisha, 752050, India
| | - Pratima Behera
- Animal Disease Research Institute, Phulnakhara, Cuttack, Odisha, India
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10
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Rajaura S, Babu R, Bhardwaj N, Chauhan P, Singh A, Afzal M. Aflatoxin B1 administration causes inflammation and apoptosis in the lungs and spleen. Toxicon 2024; 238:107581. [PMID: 38128837 DOI: 10.1016/j.toxicon.2023.107581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Aflatoxin is a naturally occurring mycotoxin that has numerous toxic effects. The main aim of the present study was to evaluate the toxic effects of aflatoxin B1 (AFB1) on the lungs and spleen. Mice were repeatedly exposed to AFB1 (0.3 mg/kg body weight) on alternate days for four weeks via oral route. The histopathological data in AFB1-treated mice show alveolar epithelial hyperplasia with inflammation and the presence of numerous alveolar macrophages with minimal hemorrhage. There was an increase in vascular neutrophils and interstitial inflammation. The branching of vessels was plugged with neutrophils. AFB1 administration also causes splenomegaly. The AFB1-treated spleen shows the tingible body macrophages (TBM) scattered within the splenic white pulp. Apoptosis may lead to atrophy in a selected region of the white pulp area. There is a decrease in cellularity within the periarteriolar lymphatic sheath (PALS). The inflammation causes the congestion of red pulp with the increase in nuclear debris, and vacuoles are also visible. The flow cytometry data further suggests enhanced apoptosis in lung and spleen cells.
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Affiliation(s)
- Sumit Rajaura
- Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to be University), Haridwar, 249404, Uttarakhand, India
| | - Ram Babu
- Kirorimal College, University of Delhi, Delhi, 110007, India
| | - Nitin Bhardwaj
- Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to be University), Haridwar, 249404, Uttarakhand, India.
| | - Pooja Chauhan
- Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to be University), Haridwar, 249404, Uttarakhand, India
| | - Ashutosh Singh
- Department of Biochemistry, University of Lucknow, Lucknow, 226007, Uttar Pradesh, India
| | - Mohd Afzal
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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11
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Xu X, Pan Y, Zhan L, Sun Y, Chen S, Zhu J, Luo L, Zhang W, Li Y. The Wnt/β-catenin pathway is involved in 2,5-hexanedione-induced ovarian granulosa cell cycle arrest. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 268:115720. [PMID: 37995618 DOI: 10.1016/j.ecoenv.2023.115720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/15/2023] [Accepted: 11/19/2023] [Indexed: 11/25/2023]
Abstract
N-Hexane causes significant ovarian toxicity, and its main active metabolite 2,5-hexanedione (2,5-HD) can induce ovarian injury through mechanisms such as inducing apoptosis in ovarian granulosa cells (GCs); however, the specific mechanism has not been fully elucidated. In this study, we investigated the effects on the cell cycle of rat ovarian GCs exposed in vitro to different concentrations of 2,5-HD (0 mM, 20 mM, 40 mM, and 60 mM) and further explored the mechanism by mRNA and miRNA microarray analyses. The flow cytometry results sindicated that compared with control cells, in ovarian GCs, there was significant cell cycle arrest after 2,5-HD treatment. Cell cycle- and apoptosis- related gene (Cdk2, Ccnd1, Bax, Bcl-2, Caspase3, and Caspase9) expression was altered. The mRNA and miRNA microarray results suggested that 5678 mRNAs and 32 miRNAs were differentially expressed in the 2,5-HD-treated group. A total of 262 target mRNAs were obtained by miRNA and mRNA coexpression analysis, forming 368 miRNA-mRNA coexpression relationship pairs with 27 miRNAs. GO and KEGG analyses showed that differentially expressed genes were significantly enriched in the cell cycle and Wnt signaling pathways. Furthermore, significant changes in the expression of Wnt signaling pathway and cell cycle- related genes (Fzd1, Lrp6, Tcf3, Tcf4, Fzd6, Lrp5, β-catenin, Lef1, GSK3β, and Dvl3) after 2,5-HD treatment were confirmed by qRT-PCR and Western blotting. Ther results of dual-luciferase assays indicated decreased β-catenin/TCF transcriptional activity after 2,5-HD treatment. In addition, Wnt pathway-related miRNAs (rno-miR-145-5p, rno-miR-143-3p, rno-miR-214-3p, rno-miR-138-5p, and rno-miR-199a-3p) were changed significantly after 2,5-HD treatment. In summary, 2,5-HD induced cell cycle arrest in ovarian GCs, and the Wnt/β-catenin signaling pathway may play a very critical role in this process. Alterations in the expression of miRNAs such as rno-miR-145-5p may have significant implications.
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Affiliation(s)
- Xueming Xu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Yimei Pan
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Liqin Zhan
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Yi Sun
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Sichuan Chen
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Jianlin Zhu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Lingfeng Luo
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Wenchang Zhang
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China.
| | - Yuchen Li
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China.
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12
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Adedara IA, Atanda OE, Sant'Anna Monteiro C, Rosemberg DB, Aschner M, Farombi EO, Rocha JBT, Furian AF, Emanuelli T. Cellular and molecular mechanisms of aflatoxin B 1-mediated neurotoxicity: The therapeutic role of natural bioactive compounds. ENVIRONMENTAL RESEARCH 2023; 237:116869. [PMID: 37567382 DOI: 10.1016/j.envres.2023.116869] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Aflatoxin B1 (AFB1), a dietary toxin from the mold Aspergillus species, is well acknowledged to elicit extra-hepatic toxicity in both animals and humans. The neurotoxicity of AFB1 has become a global public health concern. Contemporary research on how AFB1 enters the brain to elicit neuronal dysregulation leading to noxious neurological outcomes has increased greatly in recent years. The current review discusses several neurotoxic outcomes and susceptible targets of AFB1 toxicity at cellular, molecular and genetic levels. Specifically, neurotoxicity studies involving the use of brain homogenates, neuroblastoma cell line IMR-32, human brain microvascular endothelial cells, microglial cells, and astrocytes, as well as mammalian and non-mammalian models to unravel the mechanisms associated with AFB1 exposure are highlighted. Further, some naturally occurring bioactive compounds with compelling therapeutic effects on AFB1-induced neurotoxicity are reviewed. In conclusion, available data from literature highlight AFB1 as a neurotoxin and its possible pathological contribution to neurological disorders. Further mechanistic studies aimed at discovering and developing effective therapeutics for AFB1 neurotoxicity is warranted.
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Affiliation(s)
- Isaac A Adedara
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Camobi, 97105-900 Santa Maria, RS, Brazil; Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Oluwadarasimi E Atanda
- Human Toxicology Program, Department of Occupational and Environmental Health, University of Iowa, Iowa City, IA, 52242, USA
| | - Camila Sant'Anna Monteiro
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Denis B Rosemberg
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Michael Aschner
- Department of Molecular Pharmacology; Albert Einstein College of Medicine Forchheimer 209; 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Ebenezer O Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Joao B T Rocha
- Department of Biochemical and Molecular Biology, Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Ana Flávia Furian
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Tatiana Emanuelli
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Camobi, 97105-900 Santa Maria, RS, Brazil
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13
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Abd El-Hack ME, Kamal M, Altaie HAA, Youssef IM, Algarni EH, Almohmadi NH, Abukhalil MH, Khafaga AF, Alqhtani AH, Swelum AA. Peppermint essential oil and its nano-emulsion: Potential against aflatoxigenic fungus Aspergillus flavus in food and feed. Toxicon 2023; 234:107309. [PMID: 37802220 DOI: 10.1016/j.toxicon.2023.107309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 09/30/2023] [Indexed: 10/08/2023]
Abstract
A facultative parasite called Aspergillus flavus contaminates several important food crops before and after harvest. In addition, the pathogen that causes aspergillosis infections in humans and animals is opportunistic. Aflatoxin, a secondary metabolite produced by Aspergillus flavus, is also carcinogenic and mutagenic, endangering human and animal health and affecting global food security. Peppermint essential oils and plant-derived natural products have recently shown promise in combating A. flavus infestations and aflatoxin contamination. This review discusses the antifungal and anti-aflatoxigenic properties of peppermint essential oils. It then discusses how peppermint essential oils affect the growth of A. flavus and the biosynthesis of aflatoxins. Several cause physical, chemical, or biochemical changes to the cell wall, cell membrane, mitochondria, and associated metabolic enzymes and genes. Finally, the prospects for using peppermint essential oils and natural plant-derived chemicals to develop novel antifungal agents and protect foods are highlighted. In addition to reducing the risk of aspergillosis infection, this review highlights the significant potential of plant-derived natural products and peppermint essential oils to protect food and feed from aflatoxin contamination and A. flavus infestation.
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Affiliation(s)
- Mohamed E Abd El-Hack
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - Mahmoud Kamal
- Animal Production Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt
| | - Hayman A A Altaie
- Department of Medical Laboratory Techniques, College of Medical Technology, Al-kitab University, Kirkuk 36001, Iraq
| | - Islam M Youssef
- Animal Production Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt
| | - Eman H Algarni
- Department of Food Science and Nutrition, College of Science, Taif University, P.O. Box 11099, 18 Taif 21944, Saudi Arabia
| | - Najlaa H Almohmadi
- Clinical Nutrition Department, College of Applied Medical Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia
| | - Mohammad H Abukhalil
- Department of Medical Analysis, Princess Aisha Bint Al-Hussein College of Nursing and Health Sciences, Al-Hussein Bin Talal University, Ma'an 71111, Jordan; Department of Biology, College of Science, Al-Hussein Bin Talal University, Ma'an 71111, Jordan
| | - Asmaa F Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina 22758, Egypt
| | - Abdulmohsen H Alqhtani
- Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ayman A Swelum
- Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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14
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Hassaneen NH, Hemeda SA, El Nahas AF, Fadl SE, El-Diasty EM. Ameliorative effects of camel milk and silymarin upon aflatoxin B1 induced hepatic injury in rats. Sci Rep 2023; 13:15092. [PMID: 37699912 PMCID: PMC10497557 DOI: 10.1038/s41598-023-41586-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/29/2023] [Indexed: 09/14/2023] Open
Abstract
Aflatoxin B1 (AFB1) poses a major risk to both human and animal health because it contaminates food, feed, and grains. These dangerous effects can be mitigated using natural components. The purpose of this study was to examine the ameliorative effects of camel milk and silymarin supplementation upon aflatoxin B1 induced hepatic injury in rats. This improvement was assessed by measuring leukocytic and deferential counts, serum biochemical parameters, and gene expression of Tumor Necrosis Factor (TNF-α), antioxidant gene (NAD(P)H quinone oxidoreductase 1 (NQO1)), and base excision repair genes (APE1 and OGG1) in the liver tissue, in addition to liver histopathology. Sixty mature males Wister white rats were used to perform the present study; the rats were distributed in six groups (ten rats/group). The control group (without any treatment) received saline by gavage. The camel milk group received 1 ml of camel milk/kg body weight. The silymarin group received 1 ml of silymarin suspension solution at a dose of 20 mg of silymarin/kg of b.wt. The aflatoxin group received an aflatoxin-contaminated diet at a dose of 1.4 mg of aflatoxin /kg of diet and received saline. The camel milk + aflatoxin group received the same previous oral doses of camel milk and an aflatoxin-contaminated diet at the same time. The silymarin + aflatoxin group received the same previous doses of silymarin orally and an aflatoxin-contaminated diet at the same time. The obtained data indicated the deleterious effect of aflatoxin B1 on the leukocytic count, activity of AST and ALT, serum proteins, ferritin, alpha-fetoprotein, carcinoembryonic antigen, liver pathology, and the expression of the studied genes. However, these deleterious effects were mitigated by camel milk and silymarin supplementation. Thus, we could conclude that the ingestion of camel milk and silymarin mitigated the negative effects of AFB1 on the hematology, activity of AST and ALT, serum proteins, ferritin, alpha-fetoprotein, carcinoembryonic antigen, liver pathology, and gene expression in the rat model.
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Affiliation(s)
- Nahla H Hassaneen
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt
| | - Shabaan A Hemeda
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Abeer F El Nahas
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Sabreen E Fadl
- Biochemistry Department, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt.
| | - Eman M El-Diasty
- Mycology and Mycotoxins Department, Animal Health Research Institute (ARC), Giza, Egypt
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15
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Huang M, Guo J, Jia Y, Liao C, He L, Li J, Wei Y, Chen S, Chen J, Shang K, Guo R, Ding K, Yu Z. A Bacillus subtilis Strain ZJ20 with AFB1 Detoxification Ability: A Comprehensive Analysis. BIOLOGY 2023; 12:1195. [PMID: 37759594 PMCID: PMC10525747 DOI: 10.3390/biology12091195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023]
Abstract
As a class I carcinogen, aflatoxin can cause serious damage to various tissues and organs through oxidative stress injuries. The liver, as the target organ of AFB1, is the most seriously damaged. Biological methods are commonly used to degrade AFB1. In our study, the aflatoxin B1-degrading strain ZJ20 was screened from AFB1-contaminated feed and soil, and the degradation of AFB1 by ZJ20 was investigated. The whole genome of strain ZJ20 was analyzed, revealing the genomic complexity of strain ZJ20. The 16S rRNA analysis of strain ZJ20 showed 100% identity to Bacillus subtilis IAM 12118. Through whole gene functional annotation, it was determined that ZJ20 has high antioxidant activity and enzymatic activity; more than 100 CAZymes and 11 gene clusters are involved in the production of secondary metabolites with antimicrobial properties. In addition, B. subtilis ZJ20 was predicted to contain a cluster of genes encoding AFB1-degrading enzymes, including chitinase, laccase, lactonase, and manganese oxidase. The comprehensive analysis of B. subtilis provides a theoretical basis for the subsequent development of the biological functions of ZJ20 and the combinatorial enzyme degradation of AFB1.
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Affiliation(s)
- Meixue Huang
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jing Guo
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Yanyan Jia
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Chengshui Liao
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Lei He
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jing Li
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ying Wei
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Songbiao Chen
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jian Chen
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ke Shang
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Rongxian Guo
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ke Ding
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Zuhua Yu
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
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Madalosso LM, Balok FRM, Bortolotto VC, Dahleh MMM, Backes LG, Escalante ESS, Benites FV, da Silva e Silva FA, Segat HJ, Boeira SP. Pitaya Juice Consumption Protects against Oxidative Damage Induced by Aflatoxin B1. J Fungi (Basel) 2023; 9:874. [PMID: 37754981 PMCID: PMC10532851 DOI: 10.3390/jof9090874] [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: 07/25/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Mycotoxins are toxic fungal metabolites and are responsible for contaminating several foods. The intake of foods contaminated by these substances is related to hepatotoxicity and carcinogenic effects, possibly due to increasing oxidative stress. The current study evaluated Pitaya fruit juice's antioxidant effects on oxidative damage aflatoxin B1 (AFB1)-induced. Rats received 1.5 mL of Pitaya juice via gavage (for 30 days), and on the 31st day, they received AFB1 (250 µg/kg, via gavage). Forty-eight hours after the AFB1 dose, rats were euthanized for dosages of alanine transaminase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP); dosage of oxidative markers (thiobarbituric acid reactive species (TBARS), reactive species (RS)) and antioxidant defenses (catalase (CAT), superoxide dismutase (SOD), Glutathione S-transferase (GST) activities and Glutathione (GSH)) levels in the liver; and detection of Heat shock protein 70 (Hsp-70) and nuclear factor- erythroid 2-related factor 2 (Nrf2) immunocontent in the liver. Our results indicated that the Pitaya juice reduced ALP activity. Further, rats exposed to AFB1 experienced liver damage due to the increase in TBARS, RS, and Hsp-70 and the reduction in CAT, GSH, and Nrf2. Pitaya juice could, however, protect against these damages. Finally, these results indicated that pre-treatment with Pitaya juice was effective against the oxidative damage induced. However, other aspects may be elucidated in the future to discover more targets of its action against mycotoxicosis.
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Affiliation(s)
- Luiggi Müller Madalosso
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Franciéle Romero Machado Balok
- Programa de Pós-Graduação em Bioquímica, Federal University of Pampa, Uruguaiana 97650-000, Brazil; (F.R.M.B.); (V.C.B.); (M.M.M.D.)
| | - Vandreza Cardoso Bortolotto
- Programa de Pós-Graduação em Bioquímica, Federal University of Pampa, Uruguaiana 97650-000, Brazil; (F.R.M.B.); (V.C.B.); (M.M.M.D.)
| | - Mustafa Munir Mustafa Dahleh
- Programa de Pós-Graduação em Bioquímica, Federal University of Pampa, Uruguaiana 97650-000, Brazil; (F.R.M.B.); (V.C.B.); (M.M.M.D.)
| | - Lucas Gabriel Backes
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Elizabeth Sabryna Sarquis Escalante
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Fernanda Vilhalba Benites
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Francisco Andrey da Silva e Silva
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Hecson Jesser Segat
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
| | - Silvana Peterini Boeira
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules—LaftamBio, Federal University of Pampa, Itaqui 97650-000, Brazil; (L.M.M.); (L.G.B.); (E.S.S.E.); (F.V.B.); (F.A.d.S.e.S.); (H.J.S.)
- Programa de Pós-Graduação em Bioquímica, Federal University of Pampa, Uruguaiana 97650-000, Brazil; (F.R.M.B.); (V.C.B.); (M.M.M.D.)
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Li J, Deng Y, Wang Y, Nepovimova E, Wu Q, Kuca K. Mycotoxins Have a Potential of Inducing Cell Senescence: A New Understanding of Mycotoxin Immunotoxicity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104188. [PMID: 37331672 DOI: 10.1016/j.etap.2023.104188] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 06/10/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023]
Abstract
Mycotoxins result in immune dysfunction and cause immune diseases in animals and humans. However, the mechanisms of immunotoxicity involved in mycotoxins have not been fully explored, and emerging evidence suggests that these toxins may promote their immunotoxicity via cellular senescence. Mycotoxins induce cell senescence after DNA damage, and activate signaling via the NF-κB and JNK pathways to promote the secretion of senescence-associated secretory phenotype (SASP) cytokines including IL-6, IL-8, and TNF-α. DNA damage can also over-activate or cleave poly (ADP-ribose) polymerase-1 (PARP-1), increase the expression of cell cycle inhibitory proteins p21, and p53, and induce cell cycle arrest and then senescence. These senescent cells further down-regulate proliferation-related genes and overexpress inflammatory factors resulting in chronic inflammation and eventual immune exhaustion. Here we review the underlying mechanisms by which mycotoxins trigger cell senescence and the potential roles of SASP and PARP in these pathways. This work will help to further understand the mechanisms of immunotoxicity involved in mycotoxins.
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Affiliation(s)
- Jiefeng Li
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Ying Deng
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Yating Wang
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 50003, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou 434025, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 50003, Czech Republic.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 50003, Czech Republic; Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain; Biomedical Reseaerch Center, University Hospital Hradec Kralove, 500 05 Hradec Kralove, Czech Republic.
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18
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Wang W, Wang Y, Wagner KM, Lee RD, Hwang SH, Morisseau C, Wulff H, Hammock BD. Aflatoxin B 1 Increases Soluble Epoxide Hydrolase in the Brain and Induces Neuroinflammation and Dopaminergic Neurotoxicity. Int J Mol Sci 2023; 24:9938. [PMID: 37373086 PMCID: PMC10298596 DOI: 10.3390/ijms24129938] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Parkinson's disease (PD) is an increasingly common neurodegenerative movement disorder with contributing factors that are still largely unexplored and currently no effective intervention strategy. Epidemiological and pre-clinical studies support the close association between environmental toxicant exposure and PD incidence. Aflatoxin B1 (AFB1), a hazardous mycotoxin commonly present in food and environment, is alarmingly high in many areas of the world. Previous evidence suggests that chronic exposure to AFB1 leads to neurological disorders as well as cancer. However, whether and how aflatoxin B1 contributes to the pathogenesis of PD is poorly understood. Here, oral exposure to AFB1 is shown to induce neuroinflammation, trigger the α-synuclein pathology, and cause dopaminergic neurotoxicity. This was accompanied by the increased expression and enzymatic activity of soluble epoxide hydrolase (sEH) in the mouse brain. Importantly, genetic deletion or pharmacological inhibition of sEH alleviated the AFB1-induced neuroinflammation by reducing microglia activation and suppressing pro-inflammatory factors in the brain. Furthermore, blocking the action of sEH attenuated dopaminergic neuron dysfunction caused by AFB1 in vivo and in vitro. Together, our findings suggest a contributing role of AFB1 to PD etiology and highlight sEH as a potential pharmacological target for alleviating PD-related neuronal disorders caused by AFB1 exposure.
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Affiliation(s)
- Weicang Wang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
| | - Yuxin Wang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
| | - Karen M. Wagner
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
| | - Ruth Diana Lee
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA; (R.D.L.); (H.W.)
| | - Sung Hee Hwang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
| | - Christophe Morisseau
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
| | - Heike Wulff
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA; (R.D.L.); (H.W.)
| | - Bruce D. Hammock
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA; (W.W.); (Y.W.); (K.M.W.); (S.H.H.); (C.M.)
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Tian Y, Che H, Yang J, Jin Y, Yu H, Wang C, Fu Y, Li N, Zhang J. Astaxanthin Alleviates Aflatoxin B1-Induced Oxidative Stress and Apoptosis in IPEC-J2 Cells via the Nrf2 Signaling Pathway. Toxins (Basel) 2023; 15:toxins15030232. [PMID: 36977123 PMCID: PMC10057844 DOI: 10.3390/toxins15030232] [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: 02/15/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Aflatoxin B1 (AFB1), a typical fungal toxin found in feed, is highly carcinogenic. Oxidative stress is one of the main ways it exerts its toxicity; therefore, finding a suitable antioxidant is the key to reducing its toxicity. Astaxanthin (AST) is a carotenoid with strong antioxidant properties. The aim of the present research was to determine whether AST eases the AFB1-induced impairment in IPEC-J2 cells, and its specific mechanism of action. AFB1 and AST were applied to IPEC-J2 cells in different concentrations for 24 h. The AST (80 µM) significantly prevented the reduction in the IPEC-J2 cell viability that was induced by AFB1 (10 μM). The results showed that treatment with AST attenuated the AFB1-induced ROS, and cytochrome C, the Bax/Bcl2 ratio, Caspase-9, and Caspase-3, which were all activated by AFB1, were among the pro-apoptotic proteins which were diminished by AST. AST activates the Nrf2 signaling pathway and ameliorates antioxidant ability. This was further evidenced by the expression of the HO-1, NQO1, SOD2, and HSP70 genes were all upregulated. Taken together, the findings show that the impairment of oxidative stress and apoptosis, caused by the AFB1 in the IPEC-J2 cells, can be attenuated by AST triggering the Nrf2 signaling pathway.
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Affiliation(s)
- Yue Tian
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Haoyu Che
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Jinsheng Yang
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yongcheng Jin
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Hao Yu
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Chuanqi Wang
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yurong Fu
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Na Li
- Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Jing Zhang
- Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding in the Northeastern Frigid Area, College of Animal Sciences, Jilin University, Changchun 130062, China
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20
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Detoxification impacts of dietary probiotic and prebiotic supplements against aflatoxins: an updated knowledge. ANNALS OF ANIMAL SCIENCE 2023. [DOI: 10.2478/aoas-2023-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Abstract
The widespread prevalence of food pollutants seriously threatens human and animal health. Mycotoxins are secondary metabolites primarily formed by toxigenic fungal genera, including Aspergillus, Penicillium, Fusarium, and Alternaria, demonstrating one of the principal pollutants in diets or feed products. Mycotoxin contamination in food can harm health, including stunted development, immune system suppression, infertility, vomiting, and gastrointestinal and cancerous conditions. These effects can occur both acutely and chronically. The complex food chain can be contaminated with mycotoxins at any point, including during harvest, industrial processing, shipping, or storage, putting the food sector under societal pressure owing to the waste generated by infected goods. One of the biological controls of mycotoxin is provided by probiotics and prebiotics, controlled as foods and dietary supplements made of bacteria or yeast. Aflatoxin's bioavailability and gastrointestinal absorption can be reduced using various probiotics and prebiotics.
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Cytoprotective and Antioxidant Effects of Hydrolysates from Black Soldier Fly ( Hermetia illucens). Antioxidants (Basel) 2023; 12:antiox12020519. [PMID: 36830077 PMCID: PMC9952651 DOI: 10.3390/antiox12020519] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The black soldier fly (BSF), Hermetia illucens, has been recognized as one of the most promising insect species for its ability to valorize organic waste while producing a valuable larval biomass with a great potential as a sustainable source of nutrients, including proteins and bioactive molecules. In the present study, BSF larvae were used to produce and characterize the protein hydrolysates (BPHs) that were then evaluated for their potential biological activity in vitro. The BPHs obtained from the BSF larvae proteins by enzymatic digestion were characterized by Nuclear Magnetic Resonance (NMR) and polyacrylamide gel electrophoresis and assessed for their antioxidant activity (BPHs in the range of 0.1 to 1.5 mg/mL) in L-929 cells. Our findings show that BPHs can exert a dose-dependent cytoprotective role against H2O2-iduced oxidative stress in cells. This antioxidant activity relies on the reduction of ROS levels in challenged cells as measured by flow cytometry and fluorescence microscopy, together with the induction and nuclear translocation of Nrf2, as evaluated by qPCR and indirect immunofluorescence analysis, respectively. Overall, our findings on the remarkable biological activity of the BPHs obtained in a large-scale process strongly suggest the application of BPHs as ingredients promoting animal health in feed formulations.
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Karimi Torshizi MA, Sedaghat A. A consortium of detoxifying bacteria mitigates the aflatoxin B1 toxicosis on performance, health, and blood constituents of laying hens. Poult Sci 2023; 102:102601. [PMID: 36940649 PMCID: PMC10033280 DOI: 10.1016/j.psj.2023.102601] [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: 01/22/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Detoxification approaches are evolving from physical to biological to eliminate the toxins altogether. The current study was conducted to compare the impact of 2 newly developed toxin deactivators, Magnotox-alphaA (MTA) and Magnotox-alphaB (MTB) with a commercially available toxin binder, Mycofix PlusMTV INSIDE (MF) in alleviating the pernicious effects of aflatoxin B1 (AFB1) in laying hens. The treatments were: 1) negative control (NC; without AFB1), 2) positive control (PC; contaminated with 500 ppb AFB1), 3) MF (PC + 2 kg MF/ton feed), 4) MTA (PC + 2 kg MTA/ton feed), and 5) MTB (PC + 2 kg MTB/ton feed). Detoxifying bacteria revealed a substantial reduction of different toxins in vitro, in which 98.8, 94.5, and 73.3% degradation rates were achieved, respectively, for zearalenone (ZEN), patulin, and AFB1 in the first 1 h of exposure. The PC group had a sharp decline in egg production (EP; 68.83%) while MTB showed the superior EP (95.74%) followed by NC (90.66%), MF (86.57%), and MTA (82.08%; P ≤ 0.05). Egg weight (EW) was also observed to be inferior in PC group (53.80 g; P ≤ 0.05). Egg mass (EM) was higher in MTB (57.55 g) and NC (54.33 g) groups while PC produced the lowest (39.64 g; P ≤ 0.05). MTB and NC groups also demonstrated the best FCR, 1.62 and 1.68, respectively, and PC manifested the poorest FCR (1.98) with higher ADFI (P ≤ 0.05). MTB also produced a superior moisture content (MC; 82.11%) with inferior DM (17.89%) in ileum content (P ≤ 0.05). The greatest liver fat content was found in MF group (48.19%) and MTA yielded the superior serum β-carotene and Vit A. MDA level in yolk samples was influenced by treatments, rendering the highest level in PC group (P ≤ 0.05). Ileum microbiota and blood characteristics were also affected by treatments. In general, MTB proves to be a toxin-deactivator candidate with comparable results to that of commercially available toxin-binders.
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Affiliation(s)
| | - Asghar Sedaghat
- Department of Poultry Science, College of Agriculture, Tarbiat Modares University, Tehran 14115336, Iran; Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
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23
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Pancotti C, Rollo C, Birolo G, Benevenuta S, Fariselli P, Sanavia T. Unravelling the instability of mutational signatures extraction via archetypal analysis. Front Genet 2023; 13:1049501. [PMID: 36685831 PMCID: PMC9846778 DOI: 10.3389/fgene.2022.1049501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/07/2022] [Indexed: 01/06/2023] Open
Abstract
The high cosine similarity between some single-base substitution mutational signatures and their characteristic flat profiles could suggest the presence of overfitting and mathematical artefacts. The newest version (v3.3) of the signature database available in the Catalogue Of Somatic Mutations In Cancer (COSMIC) provides a collection of 79 mutational signatures, which has more than doubled with respect to previous version (30 profiles available in COSMIC signatures v2), making more critical the associations between signatures and specific mutagenic processes. This study both provides a systematic assessment of the de novo extraction task through simulation scenarios based on the latest version of the COSMIC signatures and highlights, through a novel approach using archetypal analysis, which COSMIC signatures are redundant and more likely to be considered as mathematical artefacts. 29 archetypes were able to reconstruct the profile of all the COSMIC signatures with cosine similarity > 0.8. Interestingly, these archetypes tend to group similar original signatures sharing either the same aetiology or similar biological processes. We believe that these findings will be useful to encourage the development of new de novo extraction methods avoiding the redundancy of information among the signatures while preserving the biological interpretation.
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24
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In vitro study of ochratoxin A in the expression of genes associated with neuron survival and viability. Toxicology 2023; 483:153376. [PMID: 36400265 DOI: 10.1016/j.tox.2022.153376] [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: 09/26/2022] [Revised: 10/27/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
Ochratoxin A (OTA) is a common mycotoxin and known contaminant of crops, foods and drinks. As OTA crosses the blood-brain barrier, this study investigated the role of OTA, as an environmental hazard, on neuronal survival and viability. The impact of a range of OTA concentrations on the expression of MAPT, BAX, P53, BDNF and TPPP genes was investigated using human neuroblastoma (SH-SY5Y) cells. The absence of altered gene expression determined using reverse transcription quantitative PCR demonstrated that exposure to a typical daily dose of OTA delivered to the brain (2 fM), may not trigger neuronal dysfunction. However, a dose of OTA (2 pM) decreased BDNF expression. BDNF and TPPP expression were significantly reduced after 1 day and significantly increased after 2 days of exposure to 1 µM OTA. The expression of P53, MAPT, and BAX was reduced at both days. Thus, despite OTA cytotoxicity, SH-SY5Y cells entered a survival state following a strong toxic insult. A typical daily environmental OTA exposure does not appear to carry an increased risk of neurodegenerative disease. However, BDNF dysfunction may occur through prolonged exposure to a dose one thousand times higher than the typical daily consumed OTA dose potentially causing adverse effects on neuronal health.
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Subramaniam S, Sabran MR, Stanslas J, Kirby BP. Effect of aflatoxin B1 exposure on the progression of depressive-like behavior in rats. Front Nutr 2022; 9:1032810. [PMID: 36466381 PMCID: PMC9712965 DOI: 10.3389/fnut.2022.1032810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/02/2022] [Indexed: 07/20/2023] Open
Abstract
While it is well documented that aflatoxin B1 (AFB1); one of the most toxic food contaminants is linked to the development of depression. However, the mechanism on how it affects the gut and brain health leading to depressive-like behavior remains unclear. This study was conducted to determine the effect of AFB1 on the progression of depressive-like behavior. Thirty-two (n = 32) male Sprague Dawley rats were randomly allocated into four groups: control, low-dose (5 μg AFB1/kg), high-dose (25 μg AFB1/kg) and positive control group; exposed on chronic unpredictable mild stress (CUMS). After 4 weeks of exposure, sucrose preference test (SPT) and force swim test (FST) were used to measure behavioral despair. Fecal samples were selectively cultured to profile the bacteria. Body weight and relative organs weights were compared among groups. AFB1 and CUMS caused reduction in body weight and food intake as well as increased relative weight of adrenal glands, liver, and brain. Rats in AFB1 and CUMS groups had suppressed sucrose preference and prolonged immobility time in FST, wherein this could indicate anhedonia. Besides, fecal count of Lactobacillus spp. was significantly low following AFB1 exposure, with increasing count of Bifidobacterium spp, in comparison to the control. Indeed, further biochemical analysis and metagenomic approach are warranted to explore the underlying mechanisms on the role of gut microbiota dysbiosis and dysregulation of gut-brain axis due to AFB1 neurotoxicity on the progression of depressive-like behavior.
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Affiliation(s)
- Syarminie Subramaniam
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Mohd-Redzwan Sabran
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Brian P. Kirby
- School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland
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Rajaura S, Chauhan P, Chandra H, Bhardwaj N. Aflatoxin B1 administration induces reactive oxygen species production and apoptosis of erythrocytes in mice. Toxicon 2022; 221:106963. [DOI: 10.1016/j.toxicon.2022.106963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/13/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
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Rasouli H, Nayeri FD, Khodarahmi R. May phytophenolics alleviate aflatoxins-induced health challenges? A holistic insight on current landscape and future prospects. Front Nutr 2022; 9:981984. [PMID: 36386916 PMCID: PMC9649842 DOI: 10.3389/fnut.2022.981984] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/26/2022] [Indexed: 12/24/2022] Open
Abstract
The future GCC-connected environmental risk factors expedited the progression of nCDs. Indeed, the emergence of AFs is becoming a global food security concern. AFs are lethal carcinogenic mycotoxins, causing damage to the liver, kidney, and gastrointestinal organs. Long-term exposure to AFs leads to liver cancer. Almost a variety of food commodities, crops, spices, herbaceous materials, nuts, and processed foods can be contaminated with AFs. In this regard, the primary sections of this review aim to cover influencing factors in the occurrence of AFs, the role of AFs in progression of nCDs, links between GCC/nCDs and exposure to AFs, frequency of AFs-based academic investigations, and world distribution of AFs. Next, the current trends in the application of PPs to alleviate AFs toxicity are discussed. Nearly, more than 20,000 published records indexed in scientific databases have been screened to find recent trends on AFs and application of PPs in AFs therapy. Accordingly, shifts in world climate, improper infrastructures for production/storage of food commodities, inconsistency of global polices on AFs permissible concentration in food/feed, and lack of the public awareness are accounting for a considerable proportion of AFs damages. AFs exhibited their toxic effects by triggering the progression of inflammation and oxidative/nitrosative stress, in turn, leading to the onset of nCDs. PPs could decrease AFs-associated oxidative stress, genotoxic, mutagenic, and carcinogenic effects by improving cellular antioxidant balance, regulation of signaling pathways, alleviating inflammatory responses, and modification of gene expression profile in a dose/time-reliant fashion. The administration of PPs alone displayed lower biological properties compared to co-treatment of these metabolites with AFs. This issue might highlight the therapeutic application of PPs than their preventative content. Flavonoids such as quercetin and oxidized tea phenolics, curcumin and resveratrol were the most studied anti-AFs PPs. Our literature review clearly disclosed that considering PPs in antioxidant therapies to alleviate complications of AFs requires improvement in their bioavailability, pharmacokinetics, tissue clearance, and off-target mode of action. Due to the emergencies in the elimination of AFs in food/feedstuffs, further large-scale clinical assessment of PPs to decrease the consequences of AFs is highly required.
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Affiliation(s)
- Hassan Rasouli
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Dehghan Nayeri
- Department of Biotechnology, Faculty of Agricultural and Natural Sciences, Imam Khomeini International University (IKIU), Qazvin, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
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Jeong HI, Han JE, Shin BC, Jang S, Won JH, Kim KH, Sung SH. Herbal Decoctions for the Levels of Sulfur Dioxide, Benzopyrene, and Mycotoxin from Traditional Korean Medicine Clinics: A Preliminary Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13595. [PMID: 36294180 PMCID: PMC9602765 DOI: 10.3390/ijerph192013595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
In this study, we investigated whether the levels of sulfur dioxide (SO2), benzopyrene, and mycotoxins in herbal decoctions in Korea in 2019 were within normal limits. In total, 30 decoctions composed of multi-ingredient traditional herbs were sampled from traditional Korean medicine (TKM) clinics, TKM hospitals, and external herbal dispensaries in 2019. The decoctions were analyzed for SO2, benzopyrene, and mycotoxins using 10 samples. SO2 and benzopyrene were not detected in any of the herbal decoctions. With regard to mycotoxins, aflatoxin B1 was not detected, but B2 was detected in 7 cases (0.00~0.04 ppb), G1 in 13 cases (0.03~0.29 ppb), and G2 in 9 cases (0.02~0.93 ppb). None of these values exceeded the restrictions in prior studies. Thus, we confirm that the amounts of SO2, benzopyrene, and mycotoxins in herbal decoctions are at safe levels and provides the basis of establishing safety management criteria for herbal decoctions.
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Affiliation(s)
- Hye In Jeong
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Ji-Eun Han
- Department of Policy Development, National Institute of Korean Medicine Development, Seoul 04554, Korea
| | - Byung-Cheul Shin
- Division of Clinical Medicine, School of Korean Medicine, Pusan National University, Yangsan 50612, Korea
| | - Soobin Jang
- Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan 38609, Korea
| | - Jae-Hee Won
- Department of Public Infrastructure Operation, National Institute of Korean Medicine Development, Seoul 04554, Korea
| | - Kyeong Han Kim
- Department of Preventive Medicine, College of Korean Medicine, Woosuk University, Jeonju 54986, Korea
| | - Soo-Hyun Sung
- Department of Policy Development, National Institute of Korean Medicine Development, Seoul 04554, Korea
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Wu K, Jia S, Xue D, Rajput SA, Liu M, Qi D, Wang S. Dual effects of zearalenone on aflatoxin B1-induced liver and mammary gland toxicity in pregnant and lactating rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 245:114115. [PMID: 36179448 DOI: 10.1016/j.ecoenv.2022.114115] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/08/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Food and feed are frequently co-contaminated with aflatoxin B1 (AFB1) and zearalenone (ZEN). This study investigated the effects of ZEN on the AFB1-induced liver and mammary gland toxicity in pregnant and lactating rats. AFB1 and ZEN co-exposure inhibited the growth of rats and caused oxidative stress and inflammatory responses in the liver and mammary gland. Compared with the AFB1-only group, damage was aggravated in the AFB1 + 10 mg/kg ZEN group, and the AFB1 + 1 mg/kg ZEN group showed a reduction in some metrics. The metabolomic results of the mammary gland showed that metabolite changes were mainly in lipid, amino acid, and glucose metabolism. Compared with the AFB1 + 0 mg/kg ZEN group, the AFB1 + 1 mg/kg ZEN group had the most metabolite changes. Moreover, AFB1 and ZEN co-exposure reduced the levels of sex hormones and RNA m6A methylation in the mammary gland. We speculate that ZEN affects the toxicity of AFB1 to the liver and mammary gland by interfering with the function of sex hormones, regulating cell proliferation and metabolic processes.
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Affiliation(s)
- Kuntan Wu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Sifan Jia
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Dongfang Xue
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shahid Ali Rajput
- Department of Animal Feed and Production, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan 60000, Pakistan
| | - Minjie Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Shuai Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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The Effect of Aflatoxin B1 on Tumor-Related Genes and Phenotypic Characters of MCF7 and MCF10A Cells. Int J Mol Sci 2022; 23:ijms231911856. [PMID: 36233156 PMCID: PMC9570345 DOI: 10.3390/ijms231911856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/13/2022] [Accepted: 09/17/2022] [Indexed: 11/21/2022] Open
Abstract
The fungal toxin aflatoxin B1 (AB1) and its reactive intermediate, aflatoxin B1-8, 9 epoxide, could cause liver cancer by inducing DNA adducts. AB1 exposure can induce changes in the expression of several cancer-related genes. In this study, the effect of AB1 exposure on breast cancer MCF7 and normal breast MCF10A cell lines at the phenotypic and epigenetic levels was investigated to evaluate its potential in increasing the risk of breast cancer development. We hypothesized that, even at low concentrations, AB1 can cause changes in the expression of important genes involved in four pathways, i.e., p53, cancer, cell cycle, and apoptosis. The transcriptomic levels of BRCA1, BRCA2, p53, HER1, HER2, cMyc, BCL2, MCL1, CCND1, WNT3A, MAPK1, MAPK3, DAPK1, Casp8, and Casp9 were determined in MCF7 and MCF10A cells. Our results illustrate that treating both cells with AB1 induced cytotoxicity and apoptosis with reduction in cell viability in a concentration-dependent manner. Additionally, AB1 reduced reactive oxygen species levels. Phenotypically, AB1 caused cell-cycle arrest at G1, hypertrophy, and increased cell migration rates. There were changes in the expression levels of several tumor-related genes, which are known to contribute to activating cancer pathways. The effects of AB1 on the phenotype and epigenetics of both MCF7 and MCF10A cells associated with cancer development observed in this study suggest that AB1 is a potential risk factor for developing breast cancer.
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Wang Y, Cui J, Zheng G, Zhao M, Hao Z, Lian H, Li Y, Wu W, Zhang X, Wang J. Ochratoxin A induces cytotoxicity through ROS-mediated endoplasmic reticulum stress pathway in human gastric epithelium cells. Toxicology 2022; 479:153309. [PMID: 36058351 DOI: 10.1016/j.tox.2022.153309] [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: 06/01/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/15/2022]
Abstract
Ochratoxin A (OTA) is a mycotoxin produced by Aspergillus and Penicillium species that greatly threatens human health. We previously showed that OTA induced cycle arrest, apoptosis and autophagy in human gastric epithelium cells (GES-1). However, the mechanism underlying these effects is still unclear. Here, we showed that OTA exposure increased the expression of endoplasmic reticulum (ER) stress indicators (GRP78, PERK, ATF6, eIF2α, and CHOP), suggesting the activation of the unfolded protein response pathway. 4-phenylbutyric acid (4-PBA), an ER stress-specific inhibitor, attenuated OTA-induced loss of cell viability and apoptosis in GES-1 cells. It also attenuated the G2 phase arrest and autophagy induced by OTA, as evidenced by upregulated G2 phase-related proteins (Cdc2, Cdc25C, and cyclinB1) and downregulated autophagy markers (LC3B and Beclin-1). Moreover, OTA was found to increase ROS generation, and the inhibition of ROS formation by N-acetylcysteine (NAC), an ROS inhibitor, attenuated OTA-induced ER stress and subsequent apoptosis, cell cycle arrest, and autophagy. Collectively, these results suggest that the ROS-mediated ER stress pathway contributes to the OTA toxin-induced cytotoxicity in GES-1 cells. This study offers new insights into the molecular mechanisms underlying OTA toxicity in gastric cells.
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Affiliation(s)
- Yuan Wang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Jinfeng Cui
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Guona Zheng
- Department of Pathology, Heibei General Hospital, Shijiazhuang, China
| | - Man Zhao
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Zengfang Hao
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Hongguang Lian
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Yuehong Li
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Wenxin Wu
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xianghong Zhang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China; Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Juan Wang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China.
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Li C, Liu X, Wu J, Ji X, Xu Q. Research progress in toxicological effects and mechanism of aflatoxin B 1 toxin. PeerJ 2022; 10:e13850. [PMID: 35945939 PMCID: PMC9357370 DOI: 10.7717/peerj.13850] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/16/2022] [Indexed: 01/18/2023] Open
Abstract
Fungal contamination of animal feed can severely affect the health of farm animals, and result in considerable economic losses. Certain filamentous fungi or molds produce toxic secondary metabolites known as mycotoxins, of which aflatoxins (AFTs) are considered the most critical dietary risk factor for both humans and animals. AFTs are ubiquitous in the environment, soil, and food crops, and aflatoxin B1(AFB1) has been identified by the World Health Organization (WHO) as one of the most potent natural group 1A carcinogen. We reviewed the literature on the toxic effects of AFB1 in humans and animals along with its toxicokinetic properties. The damage induced by AFB1 in cells and tissues is mainly achieved through cell cycle arrest and inhibition of cell proliferation, and the induction of apoptosis, oxidative stress, endoplasmic reticulum (ER) stress and autophagy. In addition, numerous coding genes and non-coding RNAs have been identified that regulate AFB1 toxicity. This review is a summary of the current research on the complexity of AFB1 toxicity, and provides insights into the molecular mechanisms as well as the phenotypic characteristics.
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Affiliation(s)
- Congcong Li
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, Henan, China
| | - Xiangdong Liu
- Huazhong Agricultural University, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Lab of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs, Wuhan, Hubei, China
| | - Jiao Wu
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, Henan, China
| | - Xiangbo Ji
- Henan University of Animal Husbandry and Economy, Henan Key Laboratory of Unconventional Feed Resources Innovative Utilization, Zhengzhou, Henan, China
| | - Qiuliang Xu
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, Henan, China
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Fang M, Hu W, Liu B. Protective and detoxifying effects conferred by selenium against mycotoxins and livestock viruses: A review. Front Vet Sci 2022; 9:956814. [PMID: 35982930 PMCID: PMC9378959 DOI: 10.3389/fvets.2022.956814] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022] Open
Abstract
Animal feed can easily be infected with molds during production and storage processes, and this can lead to the production of secondary metabolites, such as mycotoxins, which eventually threaten human and animal health. Furthermore, livestock production is also not free from viral infections. Under these conditions, the essential trace element, selenium (Se), can confer various biological benefits to humans and animals, especially due to its anticancer, antiviral, and antioxidant properties, as well as its ability to regulate immune responses. This article reviews the latest literature on the antagonistic effects of Se on mycotoxin toxicity and viral infections in animals. We outlined the systemic toxicity of mycotoxins and the primary mechanisms of mycotoxin-induced toxicity in this analysis. In addition, we pay close attention to how mycotoxins and viral infections in livestock interact. The use of Se supplementation against mycotoxin-induced toxicity and cattle viral infection was the topic of our final discussion. The coronavirus disease 2019 (COVID-19) pandemic, which is currently causing a health catastrophe, has altered our perspective on health concerns to one that is more holistic and increasingly embraces the One Health Concept, which acknowledges the interdependence of humans, animals, and the environment. In light of this, we have made an effort to present a thorough and wide-ranging background on the protective functions of selenium in successfully reducing mycotoxin toxicity and livestock viral infection. It concluded that mycotoxins could be systemically harmful and pose a severe risk to human and animal health. On the contrary, animal mycotoxins and viral illnesses have a close connection. Last but not least, these findings show that the interaction between Se status and host response to mycotoxins and cattle virus infection is crucial.
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Affiliation(s)
- Manxin Fang
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
- *Correspondence: Manxin Fang
| | - Wei Hu
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
| | - Ben Liu
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
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Co-administration of Antarctic krill peptide EEEFDATR and calcium shows superior osteogenetic activity. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Neuroprotective effects of onion and garlic root extracts against Alzheimer's disease in rats: antimicrobial, histopathological, and molecular studies. BIOTECHNOLOGIA 2022; 103:153-167. [PMID: 36606073 PMCID: PMC9642951 DOI: 10.5114/bta.2022.116210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 02/10/2022] [Accepted: 02/15/2022] [Indexed: 01/09/2023] Open
Abstract
Alzheimer's disease (AD) is a brain disorder and the main reason for dementia. In this regard, there is a need to understand the alterations that occur during aging to develop treatment strategies to mitigate or prevent neurodegenerative consequences. Onion and garlic root extracts contain natural polyphenols with high antioxidant capacity; therefore, the present study aimed to investigate the protective effect of these extracts free from mycotoxin contamination on a rat model of AD. Antifungal and antibacterial assays were performed for onion and garlic extracts. Several groups of AD-induced rats were administered 1, 2, and 3 mg/kg onion or garlic extract through intragastric intubation for 30 days. After treatment, histopathological analysis, expression of apoptosis-related genes, and analyses of DNA damage and reactive oxygen species (ROS) generation were conducted in the brain tissues. The results indicate that treatment of AD-induced rats with several doses of onion and garlic root extracts decreased histopathological lesions, the expression levels of apoptotic genes, and the rate of DNA damage and inhibited intracellular ROS generation in the brain tissues. The results suggest that the protective role of onion root extract could be attributed to its content of flavonoids and flavonoid compounds through the improvement of antioxidant capacity and regulation of gene expression patterns. The higher activity levels of free radical scavenging of azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS) and antioxidant ferric reducing antioxidant power (FRAP) levels found in garlic root extract are most probably responsible for its protective effect against neurodegenerative damage.
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Does Bentonite Cause Cytotoxic and Whole-Transcriptomic Adverse Effects in Enterocytes When Used to Reduce Aflatoxin B1 Exposure? Toxins (Basel) 2022; 14:toxins14070435. [PMID: 35878173 PMCID: PMC9322703 DOI: 10.3390/toxins14070435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
Aflatoxin B1 (AFB1) is a major food safety concern, threatening the health of humans and animals. Bentonite (BEN) is an aluminosilicate clay used as a feed additive to reduce AFB1 presence in contaminated feedstuff. So far, few studies have characterized BEN toxicity and efficacy in vitro. In this study, cytotoxicity (WST-1 test), the effects on cell permeability (trans-epithelial electrical resistance and lucifer yellow dye incorporation), and transcriptional changes (RNA-seq) caused by BEN, AFB1 and their combination (AFB1 + BEN) were investigated in Caco-2 cells. Up to 0.1 mg/mL, BEN did not affect cell viability and permeability, but it reduced AFB1 cytotoxicity; however, at higher concentrations, BEN was cytotoxic. As to RNA-seq, 0.1 mg/mL BEN did not show effects on cell transcriptome, confirming that the interaction between BEN and AFB1 occurs in the medium. Data from AFB1 and AFB1 + BEN suggested AFB1 provoked most of the transcriptional changes, whereas BEN was preventive. The most interesting AFB1-targeted pathways for which BEN was effective were cell integrity, xenobiotic metabolism and transporters, basal metabolism, inflammation and immune response, p53 biological network, apoptosis and carcinogenesis. To our knowledge, this is the first study assessing the in vitro toxicity and whole-transcriptomic effects of BEN, alone or in the presence of AFB1.
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Zhang J, Su D, Liu Q, Yuan Q, Ouyang Z, Wei Y, Xiao C, Li L, Yang C, Jiang W, Guo L, Zhou T. Gasdermin D-mediated microglial pyroptosis exacerbates neurotoxicity of aflatoxins B1 and M1 in mouse primary microglia and neuronal cultures. Neurotoxicology 2022; 91:305-320. [PMID: 35716928 DOI: 10.1016/j.neuro.2022.06.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/26/2022] [Accepted: 06/12/2022] [Indexed: 12/16/2022]
Abstract
Aflatoxin B1 (AFB1) disrupts the blood-brain barrier by poisoning the vascular endothelial cells and astrocytes that maintain it. It is important to examine whether aflatoxin B1 or its metabolite, aflatoxin M1 (AFM1), affect microglia, which as the "immune cells" in the brain may amplify their damaging effects. Here we evaluated the toxicity of AFB1 and AFM1 against primary microglia and found that both aflatoxins decreased the viability of primary microglia and increased the leakage of lactate dehydrogenase, gamma-H2AX expression, nuclear lysis, necrosis and apoptosis in a dose-dependent manner. The potential contribution of microglia to the toxic effects of aflatoxins was assessed in transwell co-culture experiments involving microglia, neurons, astrocytes, oligodendrocytes or neural stem/precursor cells. And we found that the toxic effects of both aflatoxins on various types of nervous system cells were greater in the presence of microglia than in their absence. We also found that both aflatoxins induced gasdermin D-mediated microglial pyroptosis and inflammatory cytokine expression by activating the NLRP3 inflammasome. Blockade of gasdermin D activity in AFB1- or AFM1-treated primary microglia using dimethyl fumarate (DMF) reduced the release of IL-1β, IL-18 and nitric oxide, as well as the neurotoxicity of microglia-conditioned medium to neurons, astrocytes, oligodendrocytes and neural stem/precursor cells. These data suggested that the toxicity of AFB1 and AFM1 on various cells of the central nervous system is due, remarkably, the gasdermin D-mediated microglial pyroptosis exacerbates their neurotoxicity.
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Affiliation(s)
- Jinqiang Zhang
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Dapeng Su
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Qin Liu
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Qingsong Yuan
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zhen Ouyang
- School of Pharmacy, Jiangsu University, Zhenjiang 202013, China
| | - Yuan Wei
- School of Pharmacy, Jiangsu University, Zhenjiang 202013, China
| | - Chenghong Xiao
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Liangyuan Li
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Changgui Yang
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Weike Jiang
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Lanping Guo
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, State Key Laboratory Breeding Base of Dao-di Herbs, Beijing 100700, China
| | - Tao Zhou
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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Wen J, Zhao C, Chen J, Song S, Lin Z, Xie S, Qi H, Wang J, Su X. Activation of α7 nicotinic acetylcholine receptor promotes HIV-1 transcription. CELL INSIGHT 2022; 1:100028. [PMID: 37193048 PMCID: PMC10120325 DOI: 10.1016/j.cellin.2022.100028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 05/18/2023]
Abstract
Alpha7 nicotinic acetylcholine receptor (α7 nAChR), a hub of the cholinergic anti-inflammatory pathway (CAP), is required for the treatment of inflammatory diseases. HIV-1 infection can upregulate the expression of α7 nAChR in T lymphocytes and affect the role of CAP. However, whether α7 nAChR regulates HIV-1 infection in CD4+ T cells is unclear. In this study, we first found that activation of α7 nAChR by GTS-21 (an α7 nAChR agonist) can promote the transcription of HIV-1 proviral DNA. Then, through transcriptome sequencing analysis, we found that p38 MAPK signaling was enriched in GTS-21 treated HIV-latent T cells. Mechanistically, activation of α7 nAChR could increase reactive oxygen species (ROS), reduce DUSP1 and DUSP6, and consequently enhance the phosphorylation of p38 MAPK. By co-immunoprecipitation and liquid chromatography tandem mass spectrometry, we found that p-p38 MAPK interacted with Lamin B1 (LMNB1). Activation of α7 nAChR increased the binding between p-p38 MAPK and LMNB1. We confirmed that knockdown of MAPK14 significantly downregulated NFATC4, a key activator of HIV-1 transcription. Taken together, activation of the α7 nAChR could trigger ROS/p-p38 MAPK/LMNB1/NFATC4 signaling pathway enhancing HIV-1 transcription. We have revealed an unrecognized mechanism of α7 nAChR-mediated neuroimmune regulation of HIV infection.
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Affiliation(s)
- Jing Wen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuting Song
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhekai Lin
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shitao Xie
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huaxin Qi
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianhua Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510670, China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Alleviation of Oral Exposure to Aflatoxin B1-Induced Renal Dysfunction, Oxidative Stress, and Cell Apoptosis in Mice Kidney by Curcumin. Antioxidants (Basel) 2022; 11:antiox11061082. [PMID: 35739979 PMCID: PMC9219944 DOI: 10.3390/antiox11061082] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/23/2022] [Accepted: 05/27/2022] [Indexed: 02/06/2023] Open
Abstract
Aflatoxin B1 is a contaminant widely found in food and livestock feed, posing a major threat to human and animal health. Recently, much attention from the pharmaceutical and food industries has been focused on curcumin due to its strong antioxidant capacity. However, the therapeutic impacts and potential mechanisms of curcumin on kidney damage caused by AFB1 are still incomplete. In this study, AFB1 triggered renal injury in mice, as reflected by pathological changes and renal dysfunction. AFB1 induced renal oxidative stress and interfered with the Keap1–Nrf2 pathway and its downstream genes (CAT, SOD1, NQO1, GSS, GCLC, and GCLM), as manifested by elevated oxidative stress metabolites and reduced antioxidant enzymes activities. Additionally, AFB1 was found to increase apoptotic cells percentage in the kidney via the TUNEL assay, along with increased expression of Cyt-c, Bax, cleaved-Caspase-3, Caspase-9, and decreased expression of Bcl-2 at the transcriptional and protein levels; in contrast, for mice given curcumin, there was a significant reversal in kidney coefficient, biochemical parameters, pathological changes, and the expression of genes and proteins involved in oxidative stress and apoptosis. These results indicate that curcumin could antagonize oxidative stress and apoptosis to attenuate AFB1-induced kidney damage.
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Apigeninidin-rich Sorghum bicolor (L. Moench) extracts suppress A549 cells proliferation and ameliorate toxicity of aflatoxin B1-mediated liver and kidney derangement in rats. Sci Rep 2022; 12:7438. [PMID: 35523904 PMCID: PMC9076626 DOI: 10.1038/s41598-022-10926-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/08/2022] [Indexed: 02/07/2023] Open
Abstract
Sorghum bicolor plant has a high abundance of 3-deoxyanthocyanins, flavonoids and other polyphenol compounds that have been shown to offer numerous health benefits. Epidemiological studies have linked increased intake of S. bicolor to reduced risk of certain cancer types, including lung adenocarcinoma. S. bicolor extracts have shown beneficial effects in managing hepatorenal injuries. This study investigated the cytotoxic potential of three apigeninidin-rich extracts of S. bicolor (SBE-05, SBE-06 and SBE-07) against selected cancer cell lines and their ameliorative effect on aflatoxin B1 (AFB1)-mediated hepatorenal derangements in rats. We observed that, among the three potent extracts, SBE-06 more potently and selectively suppressed the growth of lung adenocarcinoma cell line (A549) (IC50 = 6.5 μg/mL). SBE-06 suppressed the expression of STAT3 but increased the expression of caspase 3. In addition, SBE-05, SBE-06 and SBE-07 inhibited oxidative and nitrosative stress, inflammation, and apoptosis and preserved the histoarchitectural networks of the liver and kidney of rats treated with AFB1. These in vitro and in vivo studies indicate the potential of these cheap and readily accessible extracts for cancer therapy and as chemo-preventive agents in preventing aflatoxin-related health issues.
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41
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Frangiamone M, Alonso-Garrido M, Font G, Cimbalo A, Manyes L. Pumpkin extract and fermented whey individually and in combination alleviated AFB1- and OTA-induced alterations on neuronal differentiation invitro. Food Chem Toxicol 2022; 164:113011. [PMID: 35447289 DOI: 10.1016/j.fct.2022.113011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/04/2022] [Accepted: 04/09/2022] [Indexed: 02/06/2023]
Abstract
Food and feed are daily exposed to mycotoxin contamination which effects may be counteracted by functional compounds like carotenoids and fermented whey. Among mycotoxins, the most toxic and studied are aflatoxin B1 (AFB1) and ochratoxin A (OTA), which neurotoxicity is not well reported. Therefore, SH-SY5Y human neuroblastoma cells ongoing differentiation were exposed during 7 days to digested bread extracts contained pumpkin and fermented whey, individually and in combination, along with AFB1 and OTA and their combination, in order to evaluate their presumed effects on neuronal differentiation. The immunofluorescence analysis of βIII-tubulin and dopamine markers pointed to OTA as the most damaging treatment for cell differentiation. Cell cycle analysis reported the highest significant differences for OTA-contained bread compared to the control in phase G0/G1. Lastly, RNA extraction was performed and gene expression was analyzed by qPCR. The selected genes were related to neuronal differentiation and cell cycle. The addition of functional ingredients in breads not only enhancing the expression of neuronal markers, but also induced an overall improvement of gene expression compromised by mycotoxins activity. These data confirm that in vitro neuronal differentiation may be impaired by AFB1 and OTA-exposure, which could be modulated by bioactive compounds naturally found in diet.
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Affiliation(s)
- Massimo Frangiamone
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Manuel Alonso-Garrido
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Guillermina Font
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Alessandra Cimbalo
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain.
| | - Lara Manyes
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
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42
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Citrinin-Induced Hepatotoxicity in Mice Is Regulated by the Ca2+/Endoplasmic Reticulum Stress Signaling Pathway. Toxins (Basel) 2022; 14:toxins14040259. [PMID: 35448868 PMCID: PMC9029441 DOI: 10.3390/toxins14040259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/23/2022] [Accepted: 04/01/2022] [Indexed: 12/26/2022] Open
Abstract
Citrinin (CTN) is a mycotoxin found in crops and agricultural products and poses a serious threat to human and animal health. The aim of this study is to investigate the hepatotoxicity of CTN in mice and analyze its mechanisms from Ca2+-dependent endoplasmic reticulum (ER) stress perspective. We showed that CTN induced histopathological damage, caused ultrastructural changes in liver cells, and induced abnormal values of biochemical laboratory tests of some liver functions in mice. Treatment with CTN could induce nitric oxide (NO), malondialdehyde (MDA), and reactive oxygen species (ROS) accumulation in mice, accompanied with losses of activities of superoxide dismutase (SOD) and catalase (CAT), levels of glutathione (GSH), and capacities of total antioxidant (T-AOC), resulting in oxidative stress in mice. Furthermore, CTN treatment significantly increased Ca2+ accumulation, upregulated protein expressions of ER stress-mediated apoptosis signal protein (glucose regulated protein 78 (GRP78/BIP), C/EBP-homologous protein (CHOP), Caspase-12, and Caspase-3), and induced hepatocyte apoptosis. These adverse effects were counteracted by 4-phenylbutyric acid (4-PBA), an ER stress inhibitor. In summary, our results showed a possible underlying molecular mechanism for CTN that induced hepatocyte apoptosis in mice by the regulation of the Ca2+/ER stress signaling pathway.
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Ren D, Sun Y, Li D, Wu H, Jin X. USP22-mediated deubiquitination of PTEN inhibits pancreatic cancer progression by inducing p21 expression. Mol Oncol 2022; 16:1200-1217. [PMID: 34743406 PMCID: PMC8895442 DOI: 10.1002/1878-0261.13137] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 09/25/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022] Open
Abstract
Phosphatase and tensin homolog deleted on chromosome ten (PTEN) is a dual lipid and protein phosphatase. Multiple mechanisms contributing to the regulation of PTEN levels have been identified thus far, including post-translational modifications, epigenetic mechanisms, and transcriptional mechanisms. In the present study, we identified ubiquitin-specific peptidase 22 (USP22) as a novel deubiquitination-modifying enzyme of PTEN. Furthermore, by inducing deubiquitination and inhibiting the degradation of PTEN, USP22 could induce cyclin-dependent kinase inhibitor 1A (CDKN1A, also symboled as p21) expression in pancreatic cancer. Besides, MDM2 proto-oncogene (MDM2) inhibitor enhanced the antipancreatic cancer effects of USP22 overexpression. In addition to its regulation of MDM2-tumor protein p53 (p53) signaling, we found that PTEN could induce p21 expression by interacting with ankyrin repeat and KH domain containing 1 (ANKHD1) and inhibiting ANKHD1 binding to the p21 promoter. Taken together, our results indicate that ANKHD1 and MDM2 might be novel therapeutic targets in pancreatic cancer.
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Affiliation(s)
- Dianyun Ren
- Department of Pancreatic SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic CancerUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yan Sun
- Department of Pancreatic SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic CancerUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Dan Li
- Cardiovascular Medicine DepartmentUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Heshui Wu
- Department of Pancreatic SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic CancerUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xin Jin
- Department of UrologyThe Second Xiangya HospitalCentral South UniversityChangshaChina
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44
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Owumi SE, Irozuru CE, Arunsi UO, Faleke HO, Oyelere AK. Caffeic acid mitigates aflatoxin B1-mediated toxicity in the male rat reproductive system by modulating inflammatory and apoptotic responses, testicular function, and the redox-regulatory systems. J Food Biochem 2022; 46:e14090. [PMID: 35112365 DOI: 10.1111/jfbc.14090] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/26/2021] [Accepted: 01/06/2022] [Indexed: 12/13/2022]
Abstract
Aflatoxin B1 (AFB1 ) is a toxic metabolite of public health concern. The present study investigates the protective effects of caffeic acid (CA) against AFB1 -induced oxidative stress, inflammation, and apoptosis in the hypothalamus, epididymis, and testis of male rats. Five experimental rat cohorts (n = 6) were treated per os for 28 consecutive days as follows: Control (Corn oil 2 ml/kg body weight), AFB1 alone (50μg/kg), CA alone (40 mg/kg) and the co-treated rat cohorts (AFB1 : 50μg/kg + CA1: 20 or 40 mg/kg). Following sacrifice, the biomarkers of hypothalamic, epididymal, and testicular toxicities, antioxidant enzyme activities, myeloperoxidase (MPO) activity, as well as levels of nitric oxide (NO), reactive oxygen and nitrogen (RONS) species and lipid peroxidation (LPO) were analysed spectrophotometrically. Besides, the concentration of tumour necrosis factor-alpha (TNF-α), Bcl-2 and Bax proteins were assessed using ELISA. Results showed that the AFB1 -induced decrease in biomarkers of testicular, epididymal and hypothalamic toxicity was significantly (p < .05) alleviated in rats coexposed to CA. Moreover, the reduction of antioxidant status and the increase in RONS and LPO were lessened (p < .05) in rats co-treated with CA. AFB1 mediated increase in TNF-α, Bax, NO and MPO activity were reduced (p< .05) in the hypothalamus, epididymis, and testis of rats coexposed to CA. In addition, Bcl-2 levels were reduced in rats treated with CA dose-dependently. Light microscopic examination showed that histopathological lesions severity induced by AFB1 were alleviated in rats coexposed to CA. Taken together, the amelioration of AFB1 -induced neuronal and reproductive toxicities by CA involves anti-inflammatory, antioxidant, antiapoptotic mechanisms in rats. PRACTICAL APPLICATIONS: The beneficial antioxidant effects of caffeic acid (CA) are attributed to CA delocalized aromatic rings and free electrons, easily donated to stabilize reactive oxygen species. We report in vivo findings on CA and AfB1 mediated oxidative stress and reproductive dysfunction in rats. CA conjugated esters including chlorogenic acids are widely distributed in plants, and they act as a dietary source of natural defense against infections. CA can chelate heavy metals and reduce production of damaging free radicals to cellular macromolecules. Along these lines, CA can stabilize aflatoxin B1-epoxide as well and avert deleterious conjugates from forming with deoxyribonucleic acids. Hence CA, as a dietary phytochemical can protect against the damaging effects of toxins including aflatoxin B1 that contaminate food. CA dose-dependently abated oxidative, inflammatory, and apoptotic stimuli, improved functional characteristics of spermatozoa and reproductive hormone levels, and prevented histological alterations in experimental rats' hypothalamus and reproductive organs brought about by AFB1 toxicity.
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Affiliation(s)
- Solomon E Owumi
- Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Chioma E Irozuru
- Molecular Drug Metabolism Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Uche O Arunsi
- Department of Cancer Immunology and Biotechnology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Hammed O Faleke
- Membrane Biochemistry and Biotechnology Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Adegboyega K Oyelere
- School of Chemistry & Biochemistry, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA
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45
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Gómez-Salazar JA, Ruiz-Hernández K, Martínez-Miranda MM, Castro-Ríos K. Postharvest strategies for decontamination of aflatoxins in cereals. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.2013254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Julián Andrés Gómez-Salazar
- Posgrado En Biociencias, Departamento De Alimentos, División De Ciencias De La Vida, Campus Irapuato-Salamanca, Universidad de Guanajuato, Irapuato, Guanajuato, México
| | - Karla Ruiz-Hernández
- Posgrado En Biociencias, Departamento De Alimentos, División De Ciencias De La Vida, Campus Irapuato-Salamanca, Universidad de Guanajuato, Irapuato, Guanajuato, México
| | | | - Katherin Castro-Ríos
- Grupo de Cromatografía Y Técnicas Afines, Universidad de Caldas, Manizales, Colombia
- Instituto de Investigación En Microbiología Y Biotecnología Agroindustrial, Universidad Católica de Manizales, Manizales, Colombia
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46
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Estrogen Receptor β Participates in Alternariol-Induced Oxidative Stress in Normal Prostate Epithelial Cells. Toxins (Basel) 2021; 13:toxins13110766. [PMID: 34822550 PMCID: PMC8621730 DOI: 10.3390/toxins13110766] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 12/12/2022] Open
Abstract
Alternaria toxins are considered as emerging mycotoxins, however their toxicity has not been fully evaluated in humans. Alternariol (AOH), the most prevalent Alternaria mycotoxin, was previously reported to be genotoxic and to affect hormonal balance in cells; however, its direct molecular mechanism is not known. The imbalance in androgen/estrogen ratio as well as chronic inflammation are postulated as factors in prostate diseases. The environmental agents affecting the hormonal balance might participate in prostate carcinogenesis. Thus, this study evaluated the effect of two doses of AOH on prostate epithelial cells. We observed that AOH in a dose of 10 µM induces oxidative stress, DNA damage and cell cycle arrest and that this effect is partially mediated by estrogen receptor β (ERβ) whereas the lower tested dose of AOH (0.1 µM) induces only oxidative stress in cells. The modulation of nuclear erythroid-related factor 2 (Nrf2) was observed in response to the higher dose of AOH. The use of selective estrogen receptor β (ERβ) inhibitor PHTPP revealed that AOH-induced oxidative stress in both tested doses is partially dependent on activation of ERβ, but lack of its activation did not protect cells against AOH-induced ROS production or DNA-damaging effect in case of higher dose of AOH (10 µM). Taken together, this is the first study reporting that AOH might affect basic processes in normal prostate epithelial cells associated with benign and malignant changes in prostate tissue.
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47
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Lee H, Yun HJ, Ding Y. Timing is everything: Exercise therapy and remote ischemic conditioning for acute ischemic stroke patients. Brain Circ 2021; 7:178-186. [PMID: 34667901 PMCID: PMC8459690 DOI: 10.4103/bc.bc_35_21] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022] Open
Abstract
Physical exercise is a promising rehabilitative strategy for acute ischemic stroke. Preclinical trials suggest that exercise restores cerebral blood circulation and re-establishes the blood–brain barrier’s integrity with neurological function and motor skill improvement. Clinical trials demonstrated that exercise improves prognosis and decreases complications after ischemic events. Due to these encouraging findings, early exercise rehabilitation has been quickly adopted into stroke rehabilitation guidelines. Unfortunately, preclinical trials have failed to warn us of an adverse effect. Trials with very early exercise rehabilitation (within 24 h of ischemic attack) found an inferior prognosis at 3 months. It was not immediately clear as to why exercise was detrimental when performed very early while it was ameliorative just a few short days later. This review aimed to explore the potential mechanisms of harm seen in very early exercise administered to acute ischemic stroke patients. To begin, the mechanisms of exercise’s benefit were transposed onto the current understanding of acute ischemic stroke’s pathogenesis, specifically during the acute and subacute phases. Then, exercise rehabilitation’s mechanisms were compared to that of remote ischemic conditioning (RIC). This comparison may reveal how RIC may be providing clinical benefit during the acute phase of ischemic stroke when exercise proved to be harmful.
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Affiliation(s)
- Hangil Lee
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Ho Jun Yun
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA.,Department of Research and Development Center, John D. Dingell VA Medical Center, Detroit, Michigan, USA
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48
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Garrick JM, Cole TB, Bammler TK, MacDonald JW, Marsillach J, Furlong CE, Costa LG. Paraoxonase 2 deficiency in mice alters motor behavior and causes region-specific transcript changes in the brain. Neurotoxicol Teratol 2021; 87:107010. [PMID: 34216730 PMCID: PMC8440460 DOI: 10.1016/j.ntt.2021.107010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/07/2021] [Accepted: 06/28/2021] [Indexed: 01/01/2023]
Abstract
Paraoxonase 2 (PON2) is an intracellular antioxidant enzyme shown to play an important role in mitigating oxidative stress in the brain. Oxidative stress is a common mechanism of toxicity for neurotoxicants and is increasingly implicated in the etiology of multiple neurological diseases. While PON2 deficiency increases oxidative stress in the brain in-vitro, little is known about its effects on behavior in-vivo and what global transcript changes occur from PON2 deficiency. We sought to characterize the effects of PON2 deficiency on behavior in mice, with an emphasis on locomotion, and evaluate transcriptional changes with RNA-Seq. Behavioral endpoints included home-cage behavior (Noldus PhenoTyper), motor coordination (Rotarod) and various gait metrics (Noldus CatWalk). Home-cage behavior analysis showed PON2 deficient mice had increased activity at night compared to wildtype controls and spent more time in the center of the cage, displaying a possible anxiolytic phenotype. PON2 deficient mice had significantly shorter latency to fall when tested on the rotarod, suggesting impaired motor coordination. Minimal gait alterations were observed, with decreased girdle support posture noted as the only significant change in gait with PON2 deficiency. Beyond one home-cage metric, no significant sex-based behavioral differences were found in this study. Finally, A subset of samples were utilized for RNA-Seq analysis, looking at three discrete brain regions: cerebral cortex, striatum, and cerebellum. Highly regional- and sex-specific changes in RNA expression were found when comparing PON2 deficient and wildtype mice, suggesting PON2 may play distinct regional roles in the brain in a sex-specific manner. Taken together, these findings demonstrates that PON2 deficiency significantly alters the brain on both a biochemical and phenotypic level, with a specific impact on motor function. These data have implications for future gene-environment toxicological studies and warrants further investigation of the role of PON2 in the brain.
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Affiliation(s)
- Jacqueline M Garrick
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States..
| | - Toby B Cole
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States.; Center on Human Development and Disabilities, University of Washington, United States
| | - Theo K Bammler
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States
| | - James W MacDonald
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States
| | - Judit Marsillach
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States
| | - Clement E Furlong
- Depts. of Medicine (Div. Medical Genetics) and of Genome Sciences, University of Washington, United States
| | - Lucio G Costa
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States.; Dept. of Medicine and Surgery, University of Parma, Italy
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49
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Chen J, Su Y, Lin R, Lin F, Shang P, Hussain R, Shi D. Effects of Acute Diquat Poisoning on Liver Mitochondrial Apoptosis and Autophagy in Ducks. Front Vet Sci 2021; 8:727766. [PMID: 34458360 PMCID: PMC8385319 DOI: 10.3389/fvets.2021.727766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 07/12/2021] [Indexed: 12/21/2022] Open
Abstract
Diquat (DQ) is an effective herbicide and is widely used in agriculture. Due to persistent and frequent applications, it can enter into aquatic ecosystem and induce toxic effects to exposed aquatic animals. The residues of DQ via food chain accumulate in different tissues of exposed animals including humans and cause adverse toxic effects. Therefore, it is crucial and important to understand the mechanisms of toxic effects of DQ in exposed animals. We used ducks as test specimens to know the effects of acute DQ poisoning on mechanisms of apoptosis and autophagy in liver tissues. Results on comparison of various indexes of visceral organs including histopathological changes, apoptosis, autophagy-related genes, and protein expression indicated the adverse effects of DQ on the liver. The results of our experimental trial showed that DQ induces non-significant toxic effects on pro-apoptotic factors like BAX, BAK1, TNF-α, caspase series, and p53. The results revealed that anti-apoptotic gene Parkin was significantly upregulated, while an upward trend was also observed for Bcl2, suggesting that involvement of the anti-apoptotic factors in ducklings plays an important role in DQ poisoning. Results showed that DQ significantly increased the protein expression level of the autophagy factor Beclin 1 in the liver. Results on key autophagy factors like LC3A, LC3B, and p62 showed an upward trend at gene level, while the protein expression level of both LC3B and p62 reduced that might be associated with process of translation affected by the pro-apoptotic components such as apoptotic protease that inhibits the occurrence of autophagy while initiating cell apoptosis. The above results indicate that DQ can induce cell autophagy and apoptosis and the exposed organism may resist the toxic effects of DQ by increasing anti-apoptotic factors.
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Affiliation(s)
- Jiaxin Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yalin Su
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Renzhao Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Fei Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi, China
| | - Riaz Hussain
- Department of Pathology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Dayou Shi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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50
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Bernal-Algaba E, Pulgarín-Alfaro M, Fernández-Cruz ML. Cytotoxicity of Mycotoxins Frequently Present in Aquafeeds to the Fish Cell Line RTGill-W1. Toxins (Basel) 2021; 13:581. [PMID: 34437452 PMCID: PMC8402477 DOI: 10.3390/toxins13080581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/10/2021] [Accepted: 08/17/2021] [Indexed: 12/18/2022] Open
Abstract
In the last decades, the aquaculture industry has introduced plant-based ingredients as a source of protein in aquafeeds. This has led to mycotoxin contaminations, representing an ecological, health and economic problem. The aim of this study was to determine in the RTgill-W1 fish cell line the toxicity of fifteen mycotoxins of common occurrence in aquafeeds. To identify the most sensitive endpoint of toxicity, the triple assay was used. It consisted of three assays: alamarBlue, Neutral Red Uptake and CFDA-AM, which revealed the mitochondrial activity, the lysosomal integrity and the plasma membrane integrity, respectively. Most of the assayed mycotoxins were toxic predominantly at lysosomal level (enniatins, beauvericin, zearalenone, ochratoxin A, deoxynivalenol (DON) and its acetylated metabolites 15-O-acetyl-DON and 3-acetyl-DON). Aflatoxins B1 and B2 exerted the greatest effects at mitochondrial level, while fumonisins B1 and B2 and nivalenol were not toxic up to 100 µg/mL. In general, low toxicity was observed at plasma membrane level. The vast majority of the mycotoxins assayed exerted a pronounced acute effect in the fish RTgill-W1 cell line, emphasizing the need for further studies to ascertain the impact of mycotoxin contamination of fish feeds in the aquaculture industry and to establish safe limits in aquafeeds.
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Affiliation(s)
| | | | - María Luisa Fernández-Cruz
- Department of Environment and Agronomy, National Institute of Agriculture and Food Research and Technology (INIA), Spanish National Research Council (CSIC), 28040 Madrid, Spain; (E.B.-A.); (M.P.-A.)
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