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Que Y, Zhang Y, Liang F, Wang L, Yang Y, Zhang J, Wang W, Sun Y, Zhong C, Zhang H, He C, Guan L, Ma H. Structural characterization, antioxidant activity, and fermentation characteristics of Flammulina velutipes residue polysaccharide degraded by ultrasonic assisted H 2O 2-Vc technique. ULTRASONICS SONOCHEMISTRY 2024; 111:107085. [PMID: 39368414 DOI: 10.1016/j.ultsonch.2024.107085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/10/2024] [Accepted: 09/26/2024] [Indexed: 10/07/2024]
Abstract
Adhere to the concept of low-carbon environmental protection and turning waste into treasure, polysaccharides from Flammulina velutipes residue polysaccharide (FVRP) has been developed and possesses diverse bioactivities, comprising antioxidant, hypoglycemic, and relieving heavy metal damage, which still has the disadvantages of high molecular weight and low bioavailability. The current work is the first to prepare a degraded polysaccharide (FVRPV) from FVRP by ultrasonic assisted H2O2-Vc technique in order to reduce its molecular weight, thereby improving its activity and bioavailability. Our results found that the molecular weight and average particle size were declined, but the monosaccharide composition and characteristic functional group types of FVRPV had no impact. The structural changes of polysaccharides analyzed by XRD, Congo Red test, I2-KI, SEM, and methylation analysis indicated that the surface morphology and glycosidic bond composition of FVRPV possessed longer side chains and a greater number of branches with an amorphous crystal structure devoid of a triple helix configuration, and had experienced notable alterations after ultrasonic assisted H2O2-Vc treatment. Meanwhile, the in vitro antioxidant capacity of FVRPV had significantly increased compared to FVRP, implying ultrasonic assisted H2O2-Vc technique maybe a effective method to enhance the bioactivity of polysaccharides. In addition, the content of polysaccharide, reducing sugar, and uronic acid in FVRPV was significantly decreased, but antioxidant capacity of fermentation broth was stronger by in vitro human fecal fermentation. The 16S rDNA sequencing data displayed that FVRPV can enrich probiotics and reduce the abundance of pathogenic bacteria through different metabolic pathways mediated by gut microbiota, thereby exerting its potential probiotic effects. The interesting work provides a novel degraded polysaccharide by ultrasonic assisted H2O2-Vc technique, laying a foundation for developing FVRPV as a new antioxidant and prebiotic.
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Affiliation(s)
- Yunxiang Que
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Yao Zhang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Fengxiang Liang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Liping Wang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Yiting Yang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Jingbo Zhang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Wanting Wang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Ying Sun
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Changjiao Zhong
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Haipeng Zhang
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Chengguang He
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - Lili Guan
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China.
| | - Hongxia Ma
- College of Life Sciences, Engineering Research Center of Bioreactor and Pharmaceutical Development, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China.
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Luo WC, Mei SQ, Huang ZJ, Chen ZH, Zhang YC, Yang MY, Liu JQ, Xu JY, Yang XR, Zhong RW, Tang LB, Yin LX, Deng Y, Peng YL, Lu C, Chen BL, Ke DX, Tu HY, Yang JJ, Xu CR, Wu YL, Zhou Q. Correlation of distribution characteristics and dynamic changes of gut microbiota with the efficacy of immunotherapy in EGFR-mutated non-small cell lung cancer. J Transl Med 2024; 22:326. [PMID: 38566102 PMCID: PMC10985957 DOI: 10.1186/s12967-024-05135-5] [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: 02/04/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND The effects of gut microbiota and metabolites on the responses to immune checkpoint inhibitors (ICIs) in advanced epidermal growth factor receptor (EGFR) wild-type non-small cell lung cancer (NSCLC) have been studied. However, their effects on EGFR-mutated (EGFR +) NSCLC remain unknown. METHODS We prospectively recorded the clinicopathological characteristics of patients with advanced EGFR + NSCLC and assessed potential associations between the use of antibiotics or probiotics and immunotherapy efficacy. Fecal samples were collected at baseline, early on-treatment, response and progression status and were subjected to metagenomic next-generation sequencing and ultra-high-performance liquid chromatography-mass spectrometry analyses to assess the effects of gut microbiota and metabolites on immunotherapy efficacy. RESULTS The clinical data of 74 advanced EGFR + NSCLC patients were complete and 18 patients' fecal samples were dynamically collected. Patients that used antibiotics had shorter progression-free survival (PFS) (mPFS, 4.8 vs. 6.7 months; P = 0.037); probiotics had no impact on PFS. Two dynamic types of gut microbiota during immunotherapy were identified: one type showed the lowest relative abundance at the response time point, whereas the other type showed the highest abundance at the response time point. Metabolomics revealed significant differences in metabolites distribution between responders and non-responders. Deoxycholic acid, glycerol, and quinolinic acid were enriched in responders, whereas L-citrulline was enriched in non-responders. There was a significant correlation between gut microbiota and metabolites. CONCLUSIONS The use of antibiotics weakens immunotherapy efficacy in patients with advanced EGFR + NSCLC. The distribution characteristics and dynamic changes of gut microbiota and metabolites may indicate the efficacy of immunotherapy in advanced EGFR + NSCLC.
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Affiliation(s)
- Wei-Chi Luo
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Shi-Qi Mei
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Zi-Jian Huang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Zhi-Hong Chen
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yi-Chen Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Ming-Yi Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Jia-Qi Liu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Jing-Yan Xu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Xiao-Rong Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Ri-Wei Zhong
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Li-Bo Tang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Lin-Xi Yin
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yu Deng
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Ying-Long Peng
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Chang Lu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Bao-Long Chen
- Xiamen Treatgut Biotechnology Co., Ltd, Xiamen, China
| | - Dong-Xian Ke
- Xiamen Treatgut Medical Laboratory Co., Ltd, Xiamen, China
| | - Hai-Yan Tu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Jin-Ji Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Chong-Rui Xu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
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Tian W, Huang J, Zhang W, Wang Y, Jin R, Guo H, Tang Y, Wang Y, Lai H, Leung ELH. Harnessing natural product polysaccharides against lung cancer and revisit its novel mechanism. Pharmacol Res 2024; 199:107034. [PMID: 38070793 DOI: 10.1016/j.phrs.2023.107034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/22/2023] [Accepted: 12/05/2023] [Indexed: 01/13/2024]
Abstract
The incidence and mortality of lung cancer are on the rise worldwide. However, the benefit of clinical treatment in lung cancer is limited. Owning to important sources of drug development, natural products have received constant attention around the world. Main ingredient polysaccharides in natural products have been found to have various activities in pharmacological research. In recent years, more and more scientists are looking for the effects and mechanisms of different natural product polysaccharides on lung cancer. In this review, we focus on the following aspects: First, natural product polysaccharides have been discovered to directly suppress the growth of lung cancer cells, which can be effective in limiting tumor progression. Additionally, polysaccharides have been considered to enhance immune function, which can play a pivotal role in fighting lung cancer. Lastly, polysaccharides can improve the efficacy of drugs in lung cancer treatment by regulating the gut microbiota. Overall, the research of natural product polysaccharides in the treatment of lung cancer is a promising area that has the potential to lead to new clinical treatments. With better understanding, natural product polysaccharides have the potential to become important components of future lung cancer treatments.
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Affiliation(s)
- Wangqi Tian
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Jumin Huang
- Cancer Center, Faculty of Health Sciences, and MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau
| | - Weitong Zhang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Yifan Wang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Ruyi Jin
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Hui Guo
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Yuping Tang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China
| | - Yuwei Wang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Ave., Xi'an-xianyang New Economic Zone, Shaanxi Province, China.
| | - Huanling Lai
- Guangzhou National Laboratory, No. 9 XingDaoHuanBei Road, Guangzhou International Bio Island, Guangdong Province, China; Guangzhou Laboratory, Guangzhou 510005, Guangdong Province, China.
| | - Elaine Lai-Han Leung
- Cancer Center, Faculty of Health Sciences, and MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau; State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macau.
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4
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Ruan H, Aulova A, Ghai V, Pandit S, Lovmar M, Mijakovic I, Kádár R. Polysaccharide-based antibacterial coating technologies. Acta Biomater 2023; 168:42-77. [PMID: 37481193 DOI: 10.1016/j.actbio.2023.07.023] [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: 03/28/2023] [Revised: 06/16/2023] [Accepted: 07/17/2023] [Indexed: 07/24/2023]
Abstract
To tackle antimicrobial resistance, a global threat identified by the United Nations, is a common cause of healthcare-associated infections (HAI) and is responsible for significant costs on healthcare systems, a substantial amount of research has been devoted to developing polysaccharide-based strategies that prevent bacterial attachment and biofilm formation on surfaces. Polysaccharides are essential building blocks for life and an abundant renewable resource that have attracted much attention due to their intrinsic remarkable biological potential antibacterial activities. If converted into efficient antibacterial coatings that could be applied to a broad range of surfaces and applications, polysaccharide-based coatings could have a significant potential global impact. However, the ultimate success of polysaccharide-based antibacterial materials will be determined by their potential for use in manufacturing processes that are scalable, versatile, and affordable. Therefore, in this review we focus on recent advances in polysaccharide-based antibacterial coatings from the perspective of fabrication methods. We first provide an overview of strategies for designing polysaccharide-based antimicrobial formulations and methods to assess the antibacterial properties of coatings. Recent advances on manufacturing polysaccharide-based coatings using some of the most common polysaccharides and fabrication methods are then detailed, followed by a critical comparative overview of associated challenges and opportunities for future developments. STATEMENT OF SIGNIFICANCE: Our review presents a timely perspective by being the first review in the field to focus on advances on polysaccharide-based antibacterial coatings from the perspective of fabrication methods along with an overview of strategies for designing polysaccharide-based antimicrobial formulations, methods to assess the antibacterial properties of coatings as well as a critical comparative overview of associated challenges and opportunities for future developments. Meanwhile this work is specifically targeted at an audience focused on featuring critical information and guidelines for developing polysaccharide-based coatings. Including such a complementary work in the journal could lead to further developments on polysaccharide antibacterial applications.
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Affiliation(s)
- Hengzhi Ruan
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Alexandra Aulova
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Viney Ghai
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Santosh Pandit
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Martin Lovmar
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; Wellspect Healthcare AB, 431 21 Mölndal, Sweden
| | - Ivan Mijakovic
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
| | - Roland Kádár
- Department of Industrial and Materials Science, Chalmers University of Technology, 412 96 Göteborg, Sweden; Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, 412 96 Göteborg, Sweden.
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5
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Feng C, Xu F, Li L, Zhang J, Wang J, Li Y, Liu L, Han Z, Shi R, Wan X, Song Y. Biological control of Fusarium crown rot of wheat with Chaetomium globosum 12XP1-2-3 and its effects on rhizosphere microorganisms. Front Microbiol 2023; 14:1133025. [PMID: 37077244 PMCID: PMC10106750 DOI: 10.3389/fmicb.2023.1133025] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/28/2023] [Indexed: 04/05/2023] Open
Abstract
Chaetomium globosum is a common plant endophytic fungi that exhibits great biocontrol potential in plant disease. Fusarium crown rot (FCR) is an important disease in wheat that seriously threatens wheat production worldwide. The control effect of C. globosum against wheat FCR remains unclear. In this study, we introduced an identified C. globosum 12XP1-2-3 and tested its biological control potential against wheat FCR. The hypha and fermentation broth exhibited an antagonistic effect against Fusarium pseudograminearum. Results from indoor experiments showed that C. globosum 12XP1-2-3 might delay the onset of symptoms of brown stem base and significantly reduced the disease index (37.3%). Field trials showed that wheat seeds coated with a spore suspension of 12XP1-2-3 grew better than the control seeds, had control effects of 25.9–73.1% on FCR disease, and increased wheat yield by 3.2–11.9%. Analysis of rhizosphere microorganisms revealed that seeds coated with C. globosum (‘Cg’ treatment) had a greater effect on fungal rather than on bacterial alpha diversity and may improve the health state of rhizosphere microorganisms, as reflected by the significantly increased fungal Shannon index at Feekes 11 and the increased complexity of the bacterial co-occurrence network but decreased complexity of the fungal network. Moreover, the accumulation of beneficial bacteria such as Bacillus and Rhizobium at Feekes 3, and Sphingomonas at Feekes 7 in the ‘Cg’ treatment may be the important contributions to healthier wheat growth state, significantly reduced relative abundance of Fusarium at Feekes 11, and reduced occurrence of FCR disease. These results provide a basis for further research on the mechanism of action of C. globosum and its application in the biological control of FCR in the field.
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Affiliation(s)
- Chaohong Feng
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Fei Xu
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Lijuan Li
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Jiaojiao Zhang
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Junmei Wang
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Yahong Li
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Lulu Liu
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Zihang Han
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Ruijie Shi
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Xinru Wan
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
| | - Yuli Song
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Key Laboratory of Integrated Pest Management on Crops in Southern Part of North China, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Zhengzhou, Henan, China
- *Correspondence: Yuli Song,
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6
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Wang Z, Zhou X, Liang X, Zheng X, Shu Z, Sun Q, Wang Q, Li N. Antioxidant and antibacterial activities of a polysaccharide produced by Chaetomium globosum CGMCC 6882. Int J Biol Macromol 2023; 233:123628. [PMID: 36758762 DOI: 10.1016/j.ijbiomac.2023.123628] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/19/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
In the present work, a Gynostemma pentaphyllum herb endophytic fungus of Chaetomium globosum CGMCC 6882 polysaccharide produced from tapioca starch (GCP-TS) with submerged fermentation was analyzed. GCP-TS contains rhamnose, glucosamine, galactose, glucose, mannose, and glucuronic acid in the molar ratio of 6.29: 0.55: 1.12: 22.93: 10.94: 3.54. Its weight-average molecular weight, number-average molecular weight and polydispersity were 4.73 × 104 Da, 4.29 × 104 Da and 1.103, respectively. Antioxidant results showed that GCP-TS had a concentration-dependent scavenging ability against DPPH radical, superoxide anion, hydroxyl radical, and ABTS radical. The corresponding scavenging capacities of GCP-TS aqueous solution at the concentration of 1.0 mg/mL were 45.11 ± 2.52, 43.58 ± 1.97, 36.27 ± 2.48, and 34.39 ± 2.06 %, respectively. Antibacterial activities of GCP-TS against Staphylococcus aureus and Escherichia coli were enhanced with the increase in its concentration, and its bacteriostatic activity against S. aureus was stronger than that against E. coli.
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Affiliation(s)
- Zichao Wang
- National Engineering Laboratory/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xueyan Zhou
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xiaona Liang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xinxin Zheng
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zhihan Shu
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China.
| | - Qi Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Na Li
- Henan Provincial Key Laboratory of Ultrasound Imaging and Artificial Intelligence, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou 450001, China; Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
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7
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Wang Z, Wang L, Pan Y, Zheng X, Liang X, Sheng L, Zhang D, Sun Q, Wang Q. Research advances on endophytic fungi and their bioactive metabolites. Bioprocess Biosyst Eng 2023; 46:165-170. [PMID: 36565343 DOI: 10.1007/s00449-022-02840-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/11/2022] [Indexed: 12/25/2022]
Abstract
Endophytic fungi, as a kind of fungi living in the healthy plant tissues and organs, are important sources of natural bioactive products and new microbial resources with high developing value. Therefore, exploration and utilization of endophytic fungi can not only alleviate the problems of resource shortage and ecological balance destruction caused by extracting large number of useful bioactive products from natural plants, but also benefit the protection of rare and endangered plant resources, which is of great significance and economic value. This review mainly expounds the concept of endophytic fungi, analyzes the research advances of endophytic fungi from antioxidant, antibacterial, insecticidal, regulating plant growth, anticancer and antitumor bioactivities and, furthermore, summarizes the existing problems in present research of endophytic fungi and corresponding solutions. We hope that this review could provide references for the development and utilization of endophytic fungi and their bioactive metabolites.
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Affiliation(s)
- Zichao Wang
- National Engineering Laboratory/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou, 450001, China.,School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Lu Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Yaping Pan
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Xinxin Zheng
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Xiaona Liang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Lili Sheng
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Di Zhang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing, 401331, China.
| | - Qi Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China.
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Wang Q, Peng Y, Chai L, Ding W. Antimicrobial effect of sorbic acid-loaded chitosan/tripolyphosphate nanoparticles on Pseudomonas aeruginosa. Int J Biol Macromol 2023; 226:1031-1040. [PMID: 36455825 DOI: 10.1016/j.ijbiomac.2022.11.220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/29/2022]
Abstract
Sorbic acid-loaded chitosan/tripolyphosphate nanoparticles (SANs) have previously been shown to exert both antibacterial and antioxidant effects on Chinese sausage. In this study, the minimum inhibitory concentrations (MICs) of SANs against two Pseudomonas aeruginosa strains were determined. The blank control group (BC) served as the negative control, while the chitosan/tripolyphosphate nanoparticles (CTNs) group and free sorbic acid (SA) group served as the positive controls. Tests conducted under five different pH conditions (5/6/7/8/9) revealed that the SANs exhibited a good bacteriostatic effect against P. aeruginosa. Variations in the metabolism, cell membrane or cell wall integrity, and morphology of P. aeruginosa were measured to evaluate the effects of SANs on their intracellular and extracellular components. The MIC of SANs for the two P. aeruginosa strains was determined to be 150 μg/mL. SANs delayed the growth of P. aeruginosa and severely damaged both its inner and outer cell membranes. The heteromorphism of the bacteria as observed by field emission scanning electron microscopy (FESEM), verified the aforementioned results. The results showed SANs could effectively inhibit the growth of P. aeruginosa and exert antibacterial ability in a wider range of acid-base environments. This study broadens the application of SANs in food processing and provides experimental basis.
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Affiliation(s)
- Qian Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Yue Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Lina Chai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Wu Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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9
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Li S, Wang Y, Dun W, Han W, Xu C, Sun Q, Wang Z. Effect of ultrasonic degradation on the physicochemical property and bioactivity of polysaccharide produced by Chaetomium globosum CGMCC 6882. Front Nutr 2022; 9:941524. [PMID: 35928848 PMCID: PMC9344072 DOI: 10.3389/fnut.2022.941524] [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: 05/11/2022] [Accepted: 06/24/2022] [Indexed: 11/24/2022] Open
Abstract
Similar to the enzymatic process, there might also be an active fragment in polysaccharides, how to obtain is important for investigating the bioactivity and pharmacological mechanism of polysaccharides. Presently, a Gynostemma pentaphyllum endophytic fungus Chaetomium globosum CGMCC 6882 polysaccharide [Genistein Combined Polysaccharide (GCP)] was degraded by ultrasonic treatment, two polysaccharide fragments of GCP-F1 and GCP-F2 were obtained. Physicochemical results showed that GCP-F1 and GCP-F2 had the same monosaccharide composition of arabinose, galactose, glucose, xylose, mannose, and glucuronic acid as compared to GCP with slightly different molar ratios. However, weight-average molecular weights of GCP-F1 and GCP-F2 decreased from 8.093 × 104 Da (GCP) to 3.158 × 104 Da and 1.027 × 104 Da, respectively. In vitro scavenging assays illustrated that GCP-F1 and GCP-F2 had higher antioxidant activity against 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, superoxide anions, and hydroxyl radical than GCP, the order was GCP < GCP-F1 < GCP-F2. Meanwhile, antibacterial tests showed that ultrasonic degradation increased the antibacterial activity of GCP-F1 as compared to GCP, but GCP-F2 almost lost its antibacterial activity with further ultrasound treatment. Changes in the antioxidant and antibacterial activities of GCP-F1 and GCP-F2 might be related to the variation of their molecular weights.
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Affiliation(s)
- Shiwei Li
- College of Life Sciences and Agronomy, Zhoukou Normal University, Zhoukou, China
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Yingna Wang
- College of Life Sciences and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Weipeng Dun
- College of Life Sciences and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Wanqing Han
- College of Life Sciences and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Chunping Xu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing, China
- *Correspondence: Qi Sun,
| | - Zichao Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, China
- Zichao Wang,
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10
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Ma L, Guo X, Yang J, Zeng X, Ma K, Wang L, Sun Q, Wang Z. Characterization and Antibacterial Activity of a Polysaccharide Produced From Sugarcane Molasses by Chaetomium globosum CGMCC 6882. Front Nutr 2022; 9:935632. [PMID: 35799584 PMCID: PMC9254729 DOI: 10.3389/fnut.2022.935632] [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: 05/04/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
As a by-product of the sugar industry containing many sugars, proteins, nitrogenous materials, and heavy metals, molasses is rarely used for polysaccharide production. In the present work, a Chaetomium globosum CGMCC 6882 polysaccharide was produced from sugarcane molasses (CGP-SM) was successfully produced from sugarcane molasses. The yield of CGP-SM was 5.83 ± 0.09 g/l and its protein content was 2.41 ± 0.12% (w/w). Structural analysis showed that CGP-SM was a crystalline and amorphous polysaccharide containing rhamnose, glucosamine, galactose, glucose, mannose, fructose, and glucuronic acid in the molar ratio of 10.31: 1.14: 2.07: 59.55: 42.65: 1.92: 9.63. Meanwhile, weight-average molecular weight (Mw), number-average molecular weight (Mn), and polydispersity (Mw/Mn) of CGP-SM were 28.37 KDa, 23.66 KDa, and 1.199, respectively. Furthermore, the bacteriostatic assay indicated that CGP-SM inhibited the growth of Escherichia coli and Staphylococcus aureus in a concentration-dependent manner, and its inhibitory effect on S. aureus was higher than that of E. coli. Above all, this work provides a green method for the production of bioactive polysaccharide from sugarcane molasses.
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Affiliation(s)
- Li Ma
- Henan Provincial Key University Laboratory for Plant-Microbe Interactions, College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Xueliang Guo
- Henan Provincial Key University Laboratory for Plant-Microbe Interactions, College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Jiaoyang Yang
- Henan Provincial Key University Laboratory for Plant-Microbe Interactions, College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Xiangru Zeng
- Henan Provincial Key University Laboratory for Plant-Microbe Interactions, College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Kaili Ma
- Henan Provincial Key University Laboratory for Plant-Microbe Interactions, College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Lu Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing, China
| | - Zichao Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, China
- National Engineering Laboratory, Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou, China
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11
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Zhang L, Ma L, Pan Y, Zheng X, Sun Q, Wang Z, Wang Q, Qiao H. Effect of molecular weight on the antibacterial activity of polysaccharides produced by Chaetomium globosum CGMCC 6882. Int J Biol Macromol 2021; 188:863-869. [PMID: 34400231 DOI: 10.1016/j.ijbiomac.2021.08.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 02/02/2023]
Abstract
This study investigated the effect of molecular weight on antibacterial activity of polysaccharides. Results showed that low molecular weight (3.105 × 104 Da) polysaccharide (GCP-2) had higher inhibitory effects against Escherichia coli and Staphylococcus aureus than high molecular weight (5.340 × 104 Da) polysaccharide (GCP-1). Meanwhile, antibacterial activities of GCP-2 and GCP-1 against S. aureus were higher than those of E. coli. Minimum inhibitory concentrations (MICs) of GCP-1 against E. coli and S. aureus were 2.0 mg/mL and 1.2 mg/mL, and MICs of GCP-2 against E. coli and S. aureus were 1.75 mg/mL and 0.85 mg/mL, respectively. Antibacterial mechanisms investigation revealed that GCP-2 and GCP-1 influenced cell membrane integrity, Ca2+-Mg2+-ATPase activity on cell membrane and calcium ions in cytoplasm of E. coli and S. aureus, but not cell wall. Present work provided important implications for future studies on development of antibacterial polysaccharides based on molecular weight feature.
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Affiliation(s)
- Li Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Li Ma
- Henan Provincial Key university Laboratory for Plant-Microbe Interactions, Shangqiu Normal University, Shangqiu 476000, China
| | - Yaping Pan
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xinxin Zheng
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China.
| | - Zichao Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, Zhengzhou 450001, China.
| | - Qi Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Hanzhen Qiao
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
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12
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Wang Z, Sun Q, Zhang H, Wang J, Fu Q, Qiao H, Wang Q. Insight into antibacterial mechanism of polysaccharides: A review. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111929] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Chaetomium and Chaetomium-like Species from European Indoor Environments Include Dichotomopilus finlandicus sp. nov. Pathogens 2021; 10:pathogens10091133. [PMID: 34578165 PMCID: PMC8466430 DOI: 10.3390/pathogens10091133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/25/2021] [Accepted: 09/01/2021] [Indexed: 11/17/2022] Open
Abstract
The genus Chaetomium is a frequently occurring fungal taxon world-wide. Chaetomium and Chaetomium-like species occur in indoor environments, where they can degrade cellulose-based building materials, thereby causing structural damage. Furthermore, several species of this genus may also cause adverse effects on human health. The aims of this research were to identify Chaetomium and Chaetomium-like strains isolated from indoor environments in Hungary and Finland, two geographically distant regions of Europe with drier and wetter continental climates, respectively, and to study their morphological and physiological properties, as well as their extracellular enzyme activities, thereby comparing the Chaetomium and Chaetomium-like species isolated from these two different regions of Europe and their properties. Chaetomium and Chaetomium-like strains were isolated from flats and offices in Hungary, as well as from schools, flats, and offices in Finland. Fragments of the translation elongation factor 1α (tef1α), the second largest subunit of RNA polymerase II (rpb2) and β-tubulin (tub2) genes, as well as the internal transcribed spacer (ITS) region of the ribosomal RNA gene cluster were sequenced, and phylogenetic analysis of the sequences performed. Morphological examinations were performed by stereomicroscopy and scanning electron microscopy. Thirty-one Chaetomium sp. strains (15 from Hungary and 16 from Finland) were examined during the study. The most abundant species was Ch. globosum in both countries. In Hungary, 13 strains were identified as Ch. globosum, 1 as Ch. cochliodes, and 1 as Ch. interruptum. In Finland, 10 strains were Ch. globosum, 2 strains were Ch. cochliodes, 2 were Ch. rectangulare, and 2 isolates (SZMC 26527, SZMC 26529) proved to be representatives of a yet undescribed phylogenetic species from the closely related genus Dichotomopilus, which we formally describe here as the new species Dichotomopilus finlandicus. Growth of the isolates was examined at different temperatures (4, 15, 20, 25, 30, 37, 35, 40, and 45 °C), while their extracellular enzyme production was determined spectrophotometrically.
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14
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Wang Z, Liu X, Bao Y, Wang X, Zhai J, Zhan X, Zhang H. Characterization and anti-inflammation of a polysaccharide produced by Chaetomium globosum CGMCC 6882 on LPS-induced RAW 264.7 cells. Carbohydr Polym 2021; 251:117129. [DOI: 10.1016/j.carbpol.2020.117129] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 11/29/2022]
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15
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Yang C, Li P, Ding X, Sui HC, Rao S, Hsu CH, Leung WP, Cheng GJ, Wang P, Zhu BT. Mechanism for the reactivation of the peroxidase activity of human cyclooxygenases: investigation using phenol as a reducing cosubstrate. Sci Rep 2020; 10:15187. [PMID: 32938962 PMCID: PMC7494923 DOI: 10.1038/s41598-020-71237-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/10/2020] [Indexed: 01/05/2023] Open
Abstract
It has been known for many years that the peroxidase activity of cyclooxygenase 1 and 2 (COX-1 and COX-2) can be reactivated in vitro by the presence of phenol, which serves as a reducing compound, but the underlying mechanism is still poorly understood. In the present study, we use phenol as a model compound to investigate the mechanism by which the peroxidase activity of human COXs is reactivated after each catalytic cycle. Molecular docking and quantum mechanics calculations are carried out to probe the interaction of phenol with the peroxidase site of COXs and the reactivation mechanism. It is found that the oxygen atom associated with the Fe ion in the heme group (i.e., the complex of Fe ion and porphyrin) of COXs can be removed by addition of two protons. Following its removal, phenol can readily bind inside the peroxidase active sites of the COX enzymes, and directly interact with Fe in heme to facilitate electron transfer from phenol to heme. This investigation provides theoretical evidence for several intermediates formed in the COX peroxidase reactivation cycle, thereby unveiling mechanistic details that would aid in future rational design of drugs that target the peroxidase site.
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Affiliation(s)
- Chengxi Yang
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, 2001 Longxiang Road, Longgang District, Shenzhen, 518172, China
| | - Peng Li
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, 2001 Longxiang Road, Longgang District, Shenzhen, 518172, China
| | - Xiaoli Ding
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Hao Chen Sui
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Shun Rao
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Chia-Hsiang Hsu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Wing-Por Leung
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China.,School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Gui-Juan Cheng
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, 2001 Longxiang Road, Longgang District, Shenzhen, 518172, China
| | - Pan Wang
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China. .,School of Life and Health Sciences, The Chinese University of Hong Kong, 2001 Longxiang Road, Longgang District, Shenzhen, 518172, China. .,Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| | - Bao Ting Zhu
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, The Chinese University of Hong Kong, Shenzhen, 518172, China. .,School of Life and Health Sciences, The Chinese University of Hong Kong, 2001 Longxiang Road, Longgang District, Shenzhen, 518172, China. .,Shenzhen Bay Laboratory, Shenzhen, 518055, China.
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16
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Wang Z, Jia S, Cui J, Qu J, Yue Y, Sun Q, Zhang H. Antioxidant activity of a polysaccharide produced by Chaetomium globosum CGMCC 6882. Int J Biol Macromol 2019; 141:955-960. [DOI: 10.1016/j.ijbiomac.2019.09.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 12/19/2022]
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17
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Hu X, Wang K, Yu M, He P, Qiao H, Zhang H, Wang Z. Characterization and Antioxidant Activity of a Low-Molecular-Weight Xanthan Gum. Biomolecules 2019; 9:biom9110730. [PMID: 31726797 PMCID: PMC6920750 DOI: 10.3390/biom9110730] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 11/16/2022] Open
Abstract
In the present work, a low-molecular-weight xanthan gum (LW-XG) was successfully obtained via biodegradation of commercial xanthan by the endophytic fungus Chaetomium globosum CGMCC 6882. The monosaccharide composition of LW-XG was glucose, mannose, and glucuronic acid in a molar ratio of 1.63:1.5:1.0. The molecular weight of LW-XG was 4.07 × 104 Da and much smaller than that of commercial xanthan (2.95 × 106 Da). Antioxidant assays showed that LW-XG had a good scavenging ability on DPPH radicals, superoxide anions, and hydroxyl radicals and good ferric reducing power. Moreover, LW-XG exhibited excellent protective effect on H2O2-injured Caco-2 cells. Results of this work suggested that LW-XG could be used in foods or pharmaceuticals to alleviate and resist the oxidative damage induced by the overproduction of reactive oxygen species.
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Affiliation(s)
- Xiaolong Hu
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Kangli Wang
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Miao Yu
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Peixin He
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Hanzhen Qiao
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Huiru Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zichao Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
- Correspondence: ; Tel./Fax: +86-371-6775-6513
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18
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Yang S, Zhao W, Chen H, Zhang L, Liu T, Chen H, Yang J, Yang X. Aureonitols A and B, Two New C
13
‐Polyketides from
Chaetomium globosum
, an Endophytic Fungus in
Salvia miltiorrhiza. Chem Biodivers 2019; 16:e1900364. [DOI: 10.1002/cbdv.201900364] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/05/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Sheng‐Xiang Yang
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization and Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry BiomassZhejiang A & F University Lin'an 311300 P. R. China
| | - Wen‐Ting Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Heng‐Ye Chen
- School of Pharmaceutical SciencesSouth-Central University for Nationalities Wuhan 430074 P. R. China
| | - Lei Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Ting‐Kai Liu
- School of Pharmaceutical SciencesSouth-Central University for Nationalities Wuhan 430074 P. R. China
| | - He‐Ping Chen
- School of Pharmaceutical SciencesSouth-Central University for Nationalities Wuhan 430074 P. R. China
| | - Jian Yang
- National Resource Center for Chinese Materia MedicaChina Academy of Chinese Medical Sciences Beijing 100700 P. R. China
| | - Xiao‐Long Yang
- School of Pharmaceutical SciencesSouth-Central University for Nationalities Wuhan 430074 P. R. China
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19
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Xiao XN, Wang F, Yuan YT, Liu J, Liu YZ, Yi X. Antibacterial Activity and Mode of Action of Dihydromyricetin from Ampelopsis grossedentata Leaves against Food-Borne Bacteria. Molecules 2019; 24:molecules24152831. [PMID: 31382605 PMCID: PMC6695662 DOI: 10.3390/molecules24152831] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/24/2019] [Accepted: 07/31/2019] [Indexed: 12/28/2022] Open
Abstract
Dihydromyricetin (DMY) has recently attracted increased interest due to its considerable health-promoting activities but there are few reports on its antibacterial activity and mechanism. In this paper, the activity and mechanisms of DMY from Ampelopsis grossedentata leaves against food-borne bacteria are investigated. Moreover, the effects of pH, thermal-processing, and metal ions on the antibacterial activity of DMY are also evaluated. The results show that DMY exhibits ideal antibacterial activity on five types of food-borne bacteria (Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Salmonella paratyphi, and Pseudomonas aeruginosa). The activities of DMY against bacteria are extremely sensitive to pH, thermal-processing, and metal ions. The morphology of the tested bacteria is changed and damaged more seriously with the exposure time of DMY. Furthermore, the results of the oxidative respiratory metabolism assay and the integrity of the cell membrane and wall tests revealed that the death of bacteria caused by DMY might be due to lysis of the cell wall, leakage of intracellular ingredients, and inhibition of the tricarboxylic acid cycle (TCA) pathway.
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Affiliation(s)
- Xiao-Nian Xiao
- OAI Sino-German United Research Institute, Nanchang University, Nanchang 330047, Jiangxi Province, China
| | - Fan Wang
- OAI Sino-German United Research Institute, Nanchang University, Nanchang 330047, Jiangxi Province, China
| | - Yi-Ting Yuan
- Sino-German Food Engineering Center, Nanchang University, Nanchang 330047, Jiangxi Province, China
| | - Jing Liu
- OAI Sino-German United Research Institute, Nanchang University, Nanchang 330047, Jiangxi Province, China
| | - Yue-Zhen Liu
- OAI Sino-German United Research Institute, Nanchang University, Nanchang 330047, Jiangxi Province, China
| | - Xing Yi
- Sino-German Food Engineering Center, Nanchang University, Nanchang 330047, Jiangxi Province, China.
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20
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Wang Z, Chen X, Liu S, Zhang Y, Wu Z, Xu W, Sun Q, Yang L, Zhang H. Efficient biosynthesis of anticancer polysaccharide by a mutant Chaetomium globosum ALE20 via non-sterilized fermentation. Int J Biol Macromol 2019; 136:1106-1111. [PMID: 31252005 DOI: 10.1016/j.ijbiomac.2019.06.186] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 06/13/2019] [Accepted: 06/24/2019] [Indexed: 12/21/2022]
Abstract
The sterilization process, due to its immense energy consumption, high facilities investment, and loss of raw materials by caramelization, during industrial production has drawn much attention. In this study, a methanol-resistant mutant strain, Chaetomium globosum ALE20, was obtained following 20 cycles of adaptive laboratory evolution process. The titer of anticancer polysaccharide (GCP-M) from C. globosum ALE20 reached 9.2 g/L with glycerol as sole carbon source using non-sterilized and fed-batch fermentation strategy. This titer represents a 200% increase compared with the 3.3 g/L attained with batch fermentation. The GCP-M monosaccharide was comprised of galactose, glucose, mannose and glucuronic acid, in a molar ratio of 3.83:66.37:3.26:1.95, respectively, and its weight-average molecular weight and polydispersity were 3.796 × 104 Da and 1.060, respectively. This work presents an ideal alternative and safer fermentation process without sterilization, and a useful approach for enhancing industrial production.
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Affiliation(s)
- Zichao Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xuyang Chen
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Siyu Liu
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yingying Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zhangtao Wu
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Wenwen Xu
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China.
| | - Libo Yang
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056021, China
| | - Huiru Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China.
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21
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Rahimi Kalateh Shah Mohammad G, Seyedi SMR, Karimi E, Homayouni-Tabrizi M. The cytotoxic properties of zinc oxide nanoparticles on the rat liver and spleen, and its anticancer impacts on human liver cancer cell lines. J Biochem Mol Toxicol 2019; 33:e22324. [PMID: 30951608 DOI: 10.1002/jbt.22324] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 02/11/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Due to their unique properties including cellular uptake and the delivery efficiency to biological systems, nanoparticles are used in various preclinical and clinical applications. The aim of this study was to investigate the toxicity impacts of zinc oxide nanoparticles (ZnO-NPs) on morphology and functionality of the rat's liver and spleen and illustrated its safe-therapeutic doses. METHODS The 28 female Swiss albino rats (180-220 g) and two human hepatocyte cell lines (HepG2 and HUH7) were designed as an in vivo and in vitro study, respectively. Samples were treated with certain doses of ZnO-NPs. The rat's liver morphology and functionality and apoptotic genes expression profile (Bax, Bcl-2, and P53) were analyzed to detect the cytotoxicity and antitumor impacts of ZnO-NPs, respectively. RESULTS The results showed a positive significant association between the increasing doses of ZnO-NPs and alanine aminotransferase/aspartate aminotransferase values. Moreover, a meaningful correlation was detected between the rat's liver and spleen weight and ZnO-NPs doses. Furthermore, the histopathological analysis of rat's liver showed the individual cytotoxic properties of ZnO-NPs. Finally, the positive significant correlation was detected among the expression of Bax and P53 genes with ZnO-NPs. In addition, the negative correlation was demonstrated between the expression of Bcl-2 and ZnO-NPs. CONCLUSION In general, in the current study, the antitumor effects of ZnO-NPs were confirmed by the enhancement of P53 and Bax genes expression profile, which are indicated the apoptotic induction in HUH7 cell line. Moreover, we introduced a safe-clinical ZnO-NPs dosage, have antitumor effects.
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Affiliation(s)
| | | | - Ehsan Karimi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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