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Dharsini SP, Suganya K, Sumathi S. Identification of potential probiotics from fermented sour traditional rice varieties and in vitro simulation studies. Nat Prod Res 2024; 38:2723-2730. [PMID: 37403623 DOI: 10.1080/14786419.2023.2230608] [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: 03/24/2023] [Revised: 06/07/2023] [Accepted: 06/23/2023] [Indexed: 07/06/2023]
Abstract
Fermented products contain probiotic organisms that have beneficial and therapeutic effects on the gastrointestinal tract. The main objective of the study is to isolate probiotic bacteria from fermented sour traditional rice water and to evaluate their probiotic activity. The microbes were isolated from the fermented rice water and the characterization of the organisms was determined using MALDI-TOF MS. The morphological analysis, biochemical test, and carbohydrate fermentation test were done for further characterization. The colonization and therapeutic properties of organisms were evaluated by performing in vitro simulation studies. The results indicated that the isolated gram-positive organisms Pediococcus pentosaecus and Lactococcus lactis from traditional fermented sour rice water possessed desirable in vitro probiotic properties. Consuming fermented sour rice water enriches intestinal flora with beneficial bacteria and enzymes. Fermented rice water improves gut microbiome health, immune system function, and is also used to treat chronic conditions.
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Affiliation(s)
- S P Dharsini
- Department of Biochemistry, Biotechnology, and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
| | - Kanagaraj Suganya
- Department of Biochemistry, Biotechnology, and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
| | - Sundaravadivelu Sumathi
- Department of Biochemistry, Biotechnology, and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
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Ortiz Moyano R, Dentice Maidana S, Imamura Y, Elean M, Namai F, Suda Y, Nishiyama K, Melnikov V, Kitazawa H, Villena J. Antagonistic Effects of Corynebacterium pseudodiphtheriticum 090104 on Respiratory Pathogens. Microorganisms 2024; 12:1295. [PMID: 39065064 PMCID: PMC11278748 DOI: 10.3390/microorganisms12071295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/04/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
In previous studies, it was demonstrated that Corynebacterium pseudodiphtheriticum 090104, isolated from the human nasopharynx, modulates respiratory immunity, improving protection against infections. Here, the antagonistic effect of the 090104 strain on respiratory pathogens, including Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii, was explored. In a series of in vitro studies, the capacity of C. pseudodiphtheriticum 090104, its bacterium-like particles, and its culture supernatants to coaggregate, inhibit the growth, and change the virulent phenotype of pathogenic bacteria was evaluated. The results showed that the 090104 strain was able to exert a bacteriostatic effect on K. pneumoniae and S. pneumoniae growth. In addition, C. pseudodiphtheriticum 090104 coaggregated, inhibited biofilm formation, and induced phenotypic changes in all the respiratory pathogens evaluated. In conclusion, this work demonstrated that, in addition to its beneficial effects exerted by host-microbe interactions, C. pseudodiphtheriticum 090104 can enhance protection against respiratory pathogens through its microbe-microbe interactions. The mechanisms involved in such interactions should be evaluated in future research.
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Affiliation(s)
- Ramiro Ortiz Moyano
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), San Miguel de Tucumán 4000, Argentina; (R.O.M.); (S.D.M.); (M.E.)
| | - Stefania Dentice Maidana
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), San Miguel de Tucumán 4000, Argentina; (R.O.M.); (S.D.M.); (M.E.)
| | - Yoshiya Imamura
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan; (Y.I.); (F.N.); (K.N.)
- Livestock Immunology Unit, International Education and Research Centre for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Mariano Elean
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), San Miguel de Tucumán 4000, Argentina; (R.O.M.); (S.D.M.); (M.E.)
| | - Fu Namai
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan; (Y.I.); (F.N.); (K.N.)
- Livestock Immunology Unit, International Education and Research Centre for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Yoshihito Suda
- Department of Food, Agriculture and Environment, Miyagi University, Sendai 980-8572, Japan;
| | - Keita Nishiyama
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan; (Y.I.); (F.N.); (K.N.)
- Livestock Immunology Unit, International Education and Research Centre for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Vyacheslav Melnikov
- Gabrichevsky Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan; (Y.I.); (F.N.); (K.N.)
- Livestock Immunology Unit, International Education and Research Centre for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Julio Villena
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), San Miguel de Tucumán 4000, Argentina; (R.O.M.); (S.D.M.); (M.E.)
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan; (Y.I.); (F.N.); (K.N.)
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Fusco V, Chieffi D, Fanelli F, Montemurro M, Rizzello CG, Franz CMAP. The Weissella and Periweissella genera: up-to-date taxonomy, ecology, safety, biotechnological, and probiotic potential. Front Microbiol 2023; 14:1289937. [PMID: 38169702 PMCID: PMC10758620 DOI: 10.3389/fmicb.2023.1289937] [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: 09/06/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024] Open
Abstract
Bacteria belonging to the genera Weissella and Periweissella are lactic acid bacteria, which emerged in the last decades for their probiotic and biotechnological potential. In 2015, an article reviewing the scientific literature till that date on the taxonomy, ecology, and biotechnological potential of the Weissella genus was published. Since then, the number of studies on this genus has increased enormously, several novel species have been discovered, the taxonomy of the genus underwent changes and new insights into the safety, and biotechnological and probiotic potential of weissellas and periweissellas could be gained. Here, we provide an updated overview (from 2015 until today) of the taxonomy, ecology, safety, biotechnological, and probiotic potential of these lactic acid bacteria.
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Affiliation(s)
- Vincenzina Fusco
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Daniele Chieffi
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Francesca Fanelli
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Marco Montemurro
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
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Yang B, Song H, Hu R, Tao L, Liang Z, Cong W, Kang Y. Weissella confusa N17 Derived from Loach (Misgurnus anguillicaudatus) Exhibits Promising for Further Applications in Loach Aquaculture. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10149-4. [PMID: 37632675 DOI: 10.1007/s12602-023-10149-4] [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] [Accepted: 08/22/2023] [Indexed: 08/28/2023]
Abstract
The application of probiotics, in aquaculture, is becoming increasingly widespread and have had positive application effects. However, reports of loach-derived probiotics are quite limited. In this study, two representative strains of lactic acid bacteria with excellent traits, namely, Weissella confusa N17 and Lactobacillus saniviri N19, were screened from the intestine of healthy loaches. W. confusa N17 and L. saniviri N19 could inhibit different common various pathogenic bacteria, especially Aeromonas spp., and were sensitive to the most common antibiotics. The survival rate of the two strains exceeded 50% after 4 h of incubation in 10% loach bile. Moreover, the two strains showed significant tolerance to trypsin. Their autoaggregation capacity and hydrophobicity were greater than 30%. In addition, the aggregation ability of both strains was higher than 30% for both A. veronii TH0426 and A. hydrophila TPS. The two strains had a high biofilm-forming ability and strong adhesion to epithelioma papulosum cyprini (EPC) cells. Scanning electron microscopy results showed that the culture supernatants of the two strains had a significantly destructive effect on A. veronii TH0426 and A. hydrophila TPS. Overall, the traits of W. confusa N17 were better than those of L. saniviri N19. Genome sequencing and analysis demonstrated a lack of virulence factor-related or drug resistance-related genes in genome N17. The diet supplemented with the W. confusa N17 strain significantly improved the resistance of loaches to A. veronii infection, and the protection rate reached 57.1%. Therefore, W. confusa N17 exhibits promising for further applications in loach aquaculture.
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Affiliation(s)
- Bintong Yang
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China
- Shandong Fu Han Ocean Sci-Tech Co., Ltd, Haiyang, 265100, China
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Haichao Song
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China
| | - Renge Hu
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China
| | - Luotao Tao
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Zhenlin Liang
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China
| | - Wei Cong
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China
| | - Yuanhuan Kang
- Marine College, Shandong University/Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, China.
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China.
- Shandong Key Laboratory of Animal Microecological Preparation, Tai'an, 271000, China.
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Keeratikunakorn K, Kaewchomphunuch T, Kaeoket K, Ngamwongsatit N. Antimicrobial activity of cell free supernatants from probiotics inhibits against pathogenic bacteria isolated from fresh boar semen. Sci Rep 2023; 13:5995. [PMID: 37046067 PMCID: PMC10097705 DOI: 10.1038/s41598-023-33062-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/06/2023] [Indexed: 04/14/2023] Open
Abstract
The use of antibiotics with semen extender appears to be a practical solution to minimise bacterial growth in fresh boar semen preservation. Unfortunately, the excessive use of antibiotics promotes antimicrobial resistance (AMR). This becomes a worldwide concern due to the antimicrobial resistance genes transmitted to animals, environment, and humans. Probiotics are one of the alternative methods to reduce antibiotic use. They could inhibit pathogenic bacteria by producing antimicrobial substances in cell free supernatants (CFS). Nevertheless, there is no comprehensive study undertaken on inhibitory activity against pathogenic bacteria isolated from boar semen origin. Our study investigated the efficacy of CFS produced from selected probiotics: Bacillus spp., Enterococcus spp., Weissella spp., Lactobacillus spp., and Pediococcus spp. inhibiting pathogenic bacteria isolated from fresh boar semen. Besides, the semen-origin pathogenic bacteria are subjected to identification, antimicrobial resistance genes detection, and antibiotic susceptibility test (AST). Pseudomonas aeruginosa, Escherichia coli, and Proteus mirabilis are the most common pathogens identified in boar semen with resistance to numerous antibiotics used in pig industry. The CFS with its antimicrobial peptides and/or bacteriocin constituent derived from selected probiotics could inhibit the growth of pathogenic bacteria carrying antimicrobial resistance genes (mcr-3 and int1 genes). The inhibition zones for Pseudomonas aeruginosa, Escherichia coli, and Proteus mirabilis provided more efficient results in the CFS derived from Lactobacillus spp. and Pediococcus spp. than those of the CFS produced from Enterococcus spp., Weissella spp. and Bacillus spp., respectively. It is worth noted that as the incubation time increased, the antibacterial activity decreased conversely. Our results on CFS with its antimicrobial peptides and/or bacteriocin constituent inhibits semen-origin pathogenic bacteria guide the direction as a promising alternative method used in the semen extender preservation of the pig industry.
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Affiliation(s)
- Krittika Keeratikunakorn
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Thotsapol Kaewchomphunuch
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Kampon Kaeoket
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Natharin Ngamwongsatit
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
- Laboratory of Bacteria, Veterinary Diagnostic Center, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
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Dey DK, Sharma C, Vadlamudi Y, Kang SC. CopA3 peptide inhibits MDM2-p53 complex stability in colorectal cancers and activates p53 mediated cell death machinery. Life Sci 2023; 318:121476. [PMID: 36758667 DOI: 10.1016/j.lfs.2023.121476] [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: 11/22/2022] [Revised: 01/23/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
The diverse expression patterns of the tumor suppressor p53 in cancer cells reflect the regulatory efficiency of multiple cellular pathways. By contrast, many human tumors are reported to develop in the presence of wild-type p53. Recently, several oncogene inhibitors have been used clinically to suppress tumor development by functionally reactivating other oncoproteins. On the other hand, p53 reactivation therapies have not been well established, as few of the p53-MDM2 complex inhibitors such as Nutlin-3 induces mutation in p53 gene upon prolonged usage. Therefore, in this study CopA3, a 9-mer dimeric D-type peptide with anticancer activity against the human colorectal cancer cells, was used to explore the efficacy of p53 reactivation in-vitro and in-vivo. The anticancer activity of CopA3 was more selective towards the wild-type p53 expressing cells than the p53 deficient or mutant colorectal cancer cells. In response to this, this study investigated the signaling pathway in vitro and validated its anti-tumor activity in-vivo. The protein-peptide interaction and molecular docking efficiently provided insight into the specific binding affinity of CopA3 to the p53-binding pocket of the MDM2 protein, which efficiently blocked the p53 and MDM2 interaction. CopA3 plays a crucial role in the binding with MDM2 and enhanced the nuclear translocation of the p53 protein, which sequentially activated the downstream targets to trigger the autophagic mediated cell death machinery through the JNK/Beclin-1 mediated pathway. Collectively, CopA3 affected the MDM2-p53 interaction, which suppressed tumor development. This study may provide a novel inhibitor candidate for the MDM2-p53 complex, which could ultimately suppress the growth of colorectal cancer cells without being cytotoxic to the healthy neighboring cells present around the tumor microenvironment.
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Affiliation(s)
- Debasish Kumar Dey
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Chanchal Sharma
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Yellamandayya Vadlamudi
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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The Weissella Genus: Clinically Treatable Bacteria with Antimicrobial/Probiotic Effects on Inflammation and Cancer. Microorganisms 2022; 10:microorganisms10122427. [PMID: 36557680 PMCID: PMC9788376 DOI: 10.3390/microorganisms10122427] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/28/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
Weissella is a genus earlier considered a member of the family Leuconostocaceae, which was reclassified into the family Lactobacillaceae in 1993. Recently, there have been studies emphasizing the probiotic and anti-inflammatory potential of various species of Weissella, of which W. confusa and W. cibaria are the most representative. Other species within this genus include: W. paramesenteroides, W. viridescens, W. halotolerans, W. minor, W. kandleri, W. soli, W. ghanensis, W. hellenica, W. thailandensis, W. fabalis, W. cryptocerci, W. koreensis, W. beninensis, W. fabaria, W. oryzae, W. ceti, W. uvarum, W. bombi, W. sagaensis, W. kimchi, W. muntiaci, W. jogaejeotgali, W. coleopterorum, W. hanii, W. salipiscis, and W. diestrammenae. Weissella confusa, W. paramesenteroides, W. koreensis, and W. cibaria are among the few species that have been isolated from human samples, although the identification of these and other species is possible using metagenomics, as we have shown for inflammatory bowel disease (IBD) and healthy controls. We were able to isolate Weissella in gut-associated bacteria (post 24 h food deprivation and laxatives). Other sources of isolation include fermented food, soil, and skin/gut/saliva of insects/animals. With the potential for hospital and industrial applications, there is a concern about possible infections. Herein, we present the current applications of Weissella on its antimicrobial and anti-inflammatory mechanistic effects, the predisposing factors (e.g., vancomycin) for pathogenicity in humans, and the antimicrobials used in patients. To address the medical concerns, we examined 28 case reports focused on W. confusa and found that 78.5% of infections were bacteremia (of which 7 were fatal; 1 for lack of treatment), 8 were associated with underlying malignancies, and 8 with gastrointestinal procedures/diseases of which 2 were Crohn’s disease patients. In cases of a successful resolution, commonly administered antibiotics included: cephalosporin, ampicillin, piperacillin-tazobactam, and daptomycin. Despite reports of Weissella-related infections, the evolving mechanistic findings suggest that Weissella are clinically treatable bacteria with emerging antimicrobial and probiotic benefits ranging from oral health, skin care, obesity, and inflammatory diseases to cancer.
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Liu Y, Wang Q, Pan Q, Zhou X, Peng Z, Jahng D, Yang B, Pan X. Ventilation induced evolution pattern of archaea, fungi, bacteria and their potential roles during co-bioevaporation treatment of concentrated landfill leachate and food waste. CHEMOSPHERE 2022; 289:133122. [PMID: 34871608 DOI: 10.1016/j.chemosphere.2021.133122] [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: 07/13/2021] [Revised: 10/27/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
To obtain a favorable aeration type in co-bioevaporation treatment of concentrated landfill leachate and food waste, and to deeply understand the co-bioevaporation mechanisms, the temporal evolution differences of archaea, fungi and bacteria as well as the related microbial metabolism genes and functional enzymes under intermittent ventilation (IV) and continuous ventilation (CV) were investigated. Results through metagenomics analysis showed that the less sufficient oxygen and longer thermophilic phase in IV stimulated the vigorous growth of archaea, while CV was beneficial for fungal growth. Even genes of carbohydrates and lipids metabolism and ATP-associated enzymes (enzyme 2.7.13.3 and 3.6.4.12), as well as peptidoglycan biosynthesis enzyme (enzyme 3.4.16.4), were more abundant in CV, IV hold better DNA repair ability, higher microbial viability, and less dehydrogenase sensitivity to temperatures due to the critical contribution of Pseudomonas (3.1-45.9%). Furthermore, IV consumed a similar amount of heat for water evaporation with nearly half of the ventilation of CV and was a favorable aeration type in the practical application of co-bioevaporation.
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Affiliation(s)
- Yanmei Liu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; College of Environmental Science and Engineering, China West Normal University, Nanchong, 637009, China
| | - Qingzuo Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qian Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xiandong Zhou
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhenghua Peng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Deokjin Jahng
- Department of Environmental Engineering & Energy, Myongji University, San 38-2, Namdong, Cheoingu, Yonginshi, Gyeonggido, 449-728, Republic of Korea
| | - Benqin Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
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Kaewchomphunuch T, Charoenpichitnunt T, Thongbaiyai V, Ngamwongsatit N, Kaeoket K. Cell-free culture supernatants of Lactobacillus spp. and Pediococcus spp. inhibit growth of pathogenic Escherichia coli isolated from pigs in Thailand. BMC Vet Res 2022; 18:60. [PMID: 35093088 PMCID: PMC8800250 DOI: 10.1186/s12917-022-03140-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/04/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Pathogenic Escherichia coli (E. coli) is an important causative agent for infectious diseases in pigs and causes significant economic loss. The global concern of antimicrobial resistance of bacteria raises awareness of the alternative ways of using antimicrobial peptides (AMPs). The study was aimed to identify and test the efficacy of AMPs from Lactobacillus spp. against the growth of pathogenic E. coli isolated from pigs in Thailand. Briefly, cell-free culture supernatants (CFCS) from 3 strains of lactic acid bacteria (LAB) consisting of Lactobacillus acidophilus (strain KMP), Lactobacillus plantarum (strain KMP), and Pediococcus pentosaceus (strain KMP) were tested against pathogenic E. coli via agar well diffusion assay in quadruplicates. The presence of a zone of inhibition (ZOI) around wells was evaluated at different incubation time. Acid and bile tolerance test was performed for bacterial viability in acid and bile salt conditions. In addition, LAB cross-streaking assay was evaluated for antagonist activity. RESULTS The study showed that CFCS from L. acidophilus KMP, L. plantarum KMP, and P. pentosaceus KMP could inhibit the growth of pathogenic E. coli isolated from pigs in a time-dependent manner. To exemplify, the ZOI of L. plantarum KMP against E. coli (ETEC) at 8, 10, 12, 14, and 16 h incubation, were 26.6 ± 1.1, 24.9 ± 1.9, 22.5 ± 2.4, 20.3 ± 2.9, and 17.9 ± 3.3 mm, respectively. The ZOI was significantly different between 8, 10, 12, 14 h incubation, and the ZOI of the CFCS from L. plantarum KMP was larger than others (P-value < 0.05). Furthermore, L. acidophilus KMP, L. plantarum KMP, and P. pentosaceus KMP showed viability in pH 3.0, 0.3, and 0.5% (w/v) bile salt concentration. They exhibited no antagonist activity among each other. CONCLUSIONS According to the results, the CFCS from LAB including L. acidophilus KMP, L. plantarum KMP and P. pentosaceus KMP can inhibit the growth of pathogenic E. coli, isolated from pigs in Thailand. The antimicrobial activity observed was incubation time dependent.
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Affiliation(s)
- Thotsapol Kaewchomphunuch
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170 Thailand
| | - Thunyathorn Charoenpichitnunt
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170 Thailand
| | - Varissara Thongbaiyai
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170 Thailand
| | - Natharin Ngamwongsatit
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170 Thailand
| | - Kampon Kaeoket
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170 Thailand
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Lee Y, Seo H, Kim S, Rahim MDA, Yoon Y, Jung J, Lee S, Beom Ryu C, Song HY. Activity of Lactobacillus crispatus isolated from vaginal microbiota against Mycobacterium tuberculosis. J Microbiol 2021; 59:1019-1030. [PMID: 34724180 DOI: 10.1007/s12275-021-1332-0] [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: 06/23/2021] [Revised: 09/23/2021] [Accepted: 09/29/2021] [Indexed: 10/19/2022]
Abstract
Tuberculosis, an infectious disease, is caused by Mycobacterium tuberculosis. It remains a significant public health issue around the globe, causing about 1.8 million deaths every year. Drug-resistant M. tuberculosis, including multi-drug-resistant (MDR), extremely-drug-resistant (XDR), and totally drug-resistant (TDR) M. tuberculosis, continues to be a threat to public health. In the case of antibiotic-resistant tuberculosis, the treatment effect of conventional antibiotics is low. Side effects caused by high doses over a long period are causing severe problems. To overcome these problems, there is an urgent need to develop a new anti-tuberculosis drug that is different from the existing compound-based antibiotics. Probiotics are defined as live microorganisms conferring health benefits. They can be potential therapeutic agents in this context as the effectiveness of probiotics against different infectious diseases has been well established. Here, we report that Lactobacillus crispatus PMC201 shows a promising effect on tuberculosis isolated from vaginal fluids of healthy Korean women. Lactobacillus crispatus PMC201 reduced M. tuberculosis H37Rv under co-culture conditions in broth and reduced M. tuberculosis H37Rv and XDR M. tuberculosis in macrophages. Lactobacillus crispatus PMC201 was not toxic to a guinea pig model and did not induce dysbiosis in a human intestinal microbial ecosystem simulator. Taken together, these results indicate that L. crispatus PMC201 can be a promising alternative drug candidate in the current tuberculosis drug regime. Further study is warranted to assess the in vivo efficacy and confirm the mode of action of L. crispatus PMC201.
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Affiliation(s)
- Youngkyoung Lee
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, 31151, Republic of Korea
| | - Hoonhee Seo
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, 31538, Republic of Korea
| | - Sukyung Kim
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, 31538, Republic of Korea
| | - M D Abdur Rahim
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, 31151, Republic of Korea
| | - Youjin Yoon
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, 31151, Republic of Korea
| | - Jehee Jung
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, 31151, Republic of Korea
| | - Saebim Lee
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, 31538, Republic of Korea
| | - Chang Beom Ryu
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, 14584, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, 31151, Republic of Korea.
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, 31538, Republic of Korea.
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11
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Dey DK, Chang SN, Gu JY, Kim KM, Lee JJ, Kim TH, Kang SC. Ultraviolet B-irradiated mushroom supplementation increased the Ca ++ uptake and ameliorated the LPS-induced inflammatory responses in zebrafish larvae. J Food Biochem 2021; 45:e13742. [PMID: 33931887 DOI: 10.1111/jfbc.13742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/05/2021] [Accepted: 04/07/2021] [Indexed: 12/26/2022]
Abstract
The harmful effects of excessive ultraviolet (UV) exposure are well known. However, moderate exposure to UV radiation is beneficial and required for active vitamin D synthesis in our body. People living in the coldest regions on the earth are unable to expose their skin to the solar UV radiation and, therefore, additional supplementation of Vitamin D2 is recommended. Mushrooms are one such consumable macrofungi, which has high vitamin content and therefore used in various traditional medicines. Particularly, UVB-irradiated mushrooms are rich in active vitamin D content and that is why recommended to include in the daily diets for the patients suffering from the problems associated with bone mineralization. In the present study, we evaluated the cytotoxic effect of mushroom extract (UVB-ME) (Lentinus edodes) treatment against MG-63 cells, HepG2 cells, and CCD 841 CoN cells. Furthermore, we elucidated the potential of UVB-ME on Ca++ uptake in osteoblast-like MG-63 cells. Next, we validated the response of Ca++ uptake on the growth and development of zebrafish larvae. In addition, the anti-inflammatory and immunomodulatory potential of UVB-ME treatment against lipopolysaccharide-induced inflammatory response was also analyzed in vivo. Collectively, the study suggested that dietary supplementation of UVB-irradiated mushroom is beneficial for bone calcification and could modulate the host immune system.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, Republic of Korea
| | | | - Ji Ye Gu
- Department of Pharmaceutical Science and Technology, Kyungsung University, Busan, Republic of Korea
| | - Kang Min Kim
- Department of Pharmaceutical Science and Technology, Kyungsung University, Busan, Republic of Korea
| | | | - Tae Hee Kim
- Naturetech Co. Ltd., Chungbuk, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Republic of Korea
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12
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Zhao S, Li C, Zhu T, Jin L, Deng W, Zhao K, He Y, Li G, Xiong Y, Li T, Li B, Huang Y, Zhang H, Zou L. Diversity and Composition of Gut Bacterial Community in Giant Panda with Anorexia. Curr Microbiol 2021; 78:1358-1366. [PMID: 33646379 DOI: 10.1007/s00284-021-02424-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 02/10/2021] [Indexed: 01/02/2023]
Abstract
The giant panda (GP) is the most precious animal in China. Gastrointestinal tract disease, especially associated with dysbiosis of gut microbiota, is the leading cause of death in GPs. Here, we performed 16S rRNA high-throughput sequencing to investigate the gut microbiota of GPs having symptoms of anorexia. Results showed that gut microbiota of GP with anorexia had lower richness (Chao1 index) than the healthy GP. However, no significant differences in alpha diversity were observed. There is a significance in the microbial structure between anorexia and healthy GPs. The abundance of phylum Firmicutes (99.23% ± 7.1%), unidentified genus Clostridiales (24.75% ± 2.5%), was significantly higher in the subadult anorexia group (P < 0.01), and that of the unidentified genus Clostridiales (4.53% ± 1.2%) was also significantly higher in the adult anorexia group (P < 0.01). Weissella and Streptococcus were found to be decreased in both anorexia groups. The decreased abundance of Weissella (0.02% ± 0.0%, 0.08% ± 0.0%) and Streptococcus (73.89% ± 4.3%, 91.15% ± 7.6%) and increase in Clostridium may cause symptoms of anorexia in giant pandas. The correlation analysis indicated that there is a symbiotic relationship among Streptococcus, Leuconostoc, Weissella, and Bacillus which are classified as probiotics (r > 0.6, P < 0.05). Importantly, a negative correlation has been found between Streptococcus and unidentified_Clostridium in two groups (r > 0.6, P < 0.05). Our results suggested that Streptococcus might be used as probiotics to control the growth of Clostridium causing the anorexia.
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Affiliation(s)
- Siyue Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Caiwu Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Tao Zhu
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Lei Jin
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Wenwen Deng
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
| | - Ke Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yongguo He
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Guo Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
| | - Yaowu Xiong
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Ti Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Bei Li
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Huang
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Hemin Zhang
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China.
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13
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Teixeira CG, Fusieger A, Milião GL, Martins E, Drider D, Nero LA, de Carvalho AF. Weissella: An Emerging Bacterium with Promising Health Benefits. Probiotics Antimicrob Proteins 2021; 13:915-925. [PMID: 33565028 DOI: 10.1007/s12602-021-09751-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2021] [Indexed: 01/11/2023]
Abstract
Weissella strains have been the subject of much research over the last 5 years because of the genus' technological and probiotic potential. Certain strains have attracted the attention of the pharmaceutical, medical, and food industries because of their ability to produce antimicrobial exopolysaccharides (EPSs). Moreover, Weissella strains are able to keep foodborne pathogens in check because of the bacteriocins, hydrogen peroxide, and organic acids they can produce; all listed have recognized pathogen inhibitory activities. The Weissella genus has also shown potential for treating atopic dermatitis and certain cancers. W. cibaria, W. confusa, and W. paramesenteroides are particularly of note because of their probiotic potential (fermentation of prebiotic fibers) and their ability to survive in the gastrointestinal tract. It is important to note that most of the Weissella strains with these health-promoting properties have been shown to be save safe, due to the absence or the low occurrence of virulence or antibiotic-resistant genes. A large number of scientific studies continue to report on and to support the use of Weissella strains in the food and pharmaceutical industries. This review provides an overview of these studies and draws conclusions for future uses of this rich and previously unexplored genus.
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Affiliation(s)
- Camila Gonçalves Teixeira
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Andressa Fusieger
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Gustavo Leite Milião
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Evandro Martins
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Djamel Drider
- UMR Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | - Luís Augusto Nero
- InsPOA - Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil.
| | - Antônio Fernandes de Carvalho
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil.
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Nath S, Roy M, Sikidar J, Deb B, Sharma I, Guha A. Characterization and in-vitro screening of probiotic potential of novel Weissella confusa strain GCC_19R1 isolated from fermented sour rice. CURRENT RESEARCH IN BIOTECHNOLOGY 2021. [DOI: 10.1016/j.crbiot.2021.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Chang SN, Dey DK, Oh ST, Kong WH, Cho KH, Al-Olayan EM, Hwang BS, Kang SC, Park JG. Phorbol 12-Myristate 13-Acetate Induced Toxicity Study and the Role of Tangeretin in Abrogating HIF-1α-NF-κB Crosstalk In Vitro and In Vivo. Int J Mol Sci 2020; 21:E9261. [PMID: 33291656 PMCID: PMC7729754 DOI: 10.3390/ijms21239261] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/26/2020] [Accepted: 12/01/2020] [Indexed: 11/16/2022] Open
Abstract
Phorbol 12-myristate 13-acetate (PMA) is a potent tumor promoter and highly inflammatory in nature. Here, we investigated the toxic effects of PMA on different model system. PMA (10 μg) caused chromosomal aberrations on the Allium cepa root tip and induced mitotic dysfunction. Similarly, PMA caused embryonic and larval deformities and a plummeted survivability rate on zebrafish embryo in a dose-dependent manner. Persistently, PMA treatment on immortalized human keratinocyte human keratinocyte (HaCaT) cells caused massive inflammatory rush at 4 h and a drop in cell survivability at 24 h. Concomitantly, we replicated a cutaneous inflammation similar to human psoriasis induced by PMA. Herein, we used tangeretin (TAN), as an antagonist to counteract the inflammatory response. Results from an in vivo experiment indicated that TAN (10 and 30 mg/kg) significantly inhibited PMA stimulated epidermal hyperplasia and intra-epidermal neutrophilic abscesses. In addition, its treatment effectively neutralized PMA induced elevated reactive oxygen species (ROS) generation on in vitro and in vivo systems, promoting antioxidant response. The association of hypoxia-inducible factor 1-alpha (HIF-1α)-nuclear factor kappa-light-chain-enhancer of activated b cells (NF-κB) crosstalk triggered by PMA enhanced PKCα-ERK1/2-NF-κB pathway; its activation was also significantly counteracted after TAN treatment. Conclusively, we demonstrated TAN inhibited the nuclear translocation of HIF-1α and NF-κB p65. Collectively, TAN treatment ameliorated PMA incited malignant inflammatory response by remodeling the cutaneous microenvironment.
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Affiliation(s)
- Sukkum Ngullie Chang
- Department of Biotechnology, Daegu University, Gyeongsan 38453, Korea; (S.N.C.); (D.K.D.)
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang 37668, Gyeongbuk, Korea; (S.T.O.); (W.H.K.)
| | - Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan 38453, Korea; (S.N.C.); (D.K.D.)
| | - Seong Taek Oh
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang 37668, Gyeongbuk, Korea; (S.T.O.); (W.H.K.)
- Okinawa Research Center Co. Ltd., 13-33, Suzaki, Uruma-si, Okinawa Ken 904-2234, Japan
| | - Won Ho Kong
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang 37668, Gyeongbuk, Korea; (S.T.O.); (W.H.K.)
| | - Kiu Hyung Cho
- Research Group, Gyeongbuk Institute for Bio Industry (GIB), Andong 36728, Korea;
| | - Ebtesam M. Al-Olayan
- Department of Zoology, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Buyng Su Hwang
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea;
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan 38453, Korea; (S.N.C.); (D.K.D.)
| | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang 37668, Gyeongbuk, Korea; (S.T.O.); (W.H.K.)
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Dey DK, Kang SC. Aflatoxin B1 induces reactive oxygen species-dependent caspase-mediated apoptosis in normal human cells, inhibits Allium cepa root cell division, and triggers inflammatory response in zebrafish larvae. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139704. [PMID: 32512299 DOI: 10.1016/j.scitotenv.2020.139704] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/23/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
Mycotoxin contamination of food and water is a serious global concern. Aflatoxin B1 (AFB1) is a deadly mycotoxin that contaminates both food and water bodies in the environment. AFB1 is reported to cause severe health issues, including hepatotoxicity, teratogenicity, and immunotoxicity in humans; however, the mechanistic effects on plant and aquatic animals are not fully understood. To obtain a clear understanding of the effects of AFB1 on the ecosystem, we examined the influence of AFB1 exposure on different model systems corresponding to various habitats. In the current study, AFB1 contamination consequences were studied on a human normal cell lines (HaCaT, CCD 841 CoN), meristematic Allium cepa (onion) root cells, and zebrafish embryonic development. Our results clearly indicate that concentrations of AFB1 >10 μM are toxic to HaCaT cells. Morphological changes of HaCaT and CCD 841 CoN cells were clearly observed after exposure to AFB1. Particularly in HaCaT cells, treatment with 50 μM and 100 μM AFB1induces oxidative stress by excessive endogenous free-radical production such as ROS and NO generation. These consequences accelerate the ROS-dependent DNA damage events, which subsequently result in caspase mediated programmed cell death. Exposure of A. cepa root cells to AFB1 for 24 h resulted in abnormal cell division. A. cepa root cells subjected to AFB1 treatment showed a significant concentration-dependent increase in metaphase arrest. Exposure of zebrafish embryos to AFB1 also revealed that AFB1 contamination restricts the larval growth and development, resulting in a remarkably increased zebrafish mortality rate. Collectively, results of the current study indicate that AFB1 contamination triggers the programmed cell death machinery, subsequently affecting the ecosystem.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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Abstract
Rosacea is a complex facial skin condition associated with abnormal inflammation and vascular dysfunction. Next to the known trigger factors, the role of microbiota in the development and aggravation of rosacea continues to raise interest. Demodex folliculorum mites, Helicobacter pylori, Staphylococcus epidermidis, Chlamydia pneumoniae, and the Demodex-associated bacterium, Bacillus oleronius are microbes that have been linked with rosacea. However, the results of studies which assessed their involvement in the disease have been inconsistent and inconclusive. Microbiological research in many different disciplines exploded in recent years as methods to analyze complex microbial communities at the taxonomic and phylogenetic levels became available. Here, we provide an update on the microorganisms implicated in rosacea and review the potential pathogenic role of microbes in the development of rosacea.
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Affiliation(s)
- Hei Sung Kim
- Department of Dermatology and Cutaneous Surgery, Miami Itch Center, Miller School of Medicine, University of Miami, Miami, FL, USA.
- Department of Dermatology, Incheon St. Mary's Hospital, The Catholic University of Korea, Seoul, 06591, Korea.
- Department of Biomedicine and Health Sciences, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Korea.
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18
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Nath S, Sinha A, Singha YS, Dey A, Bhattacharjee N, Deb B. Prevalence of antibiotic-resistant, toxic metal-tolerant and biofilm-forming bacteria in hospital surroundings. Environ Anal Health Toxicol 2020; 35:e2020018. [PMID: 32979903 PMCID: PMC7656160 DOI: 10.5620/eaht.2020018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 08/31/2020] [Indexed: 01/26/2023] Open
Abstract
The emergence and rapid spread of antibiotic-resistant bacteria due to unethical and non-scientific disposal of hospital wastes and clinical by-products caused an alarming environmental concern and associated public health risks. The present study aims to assess the co-selection of antibiotic resistance and heavy metal tolerance by bacteria isolated from hospital effluents. These isolates were also tested for hemolytic activity, pH-tolerance, thermal inactivation, auto-aggregation, cell-surface hydrophobicity and interaction with other bacteria. The study reports the prevalence of antibiotic-resistant and heavy metal tolerant bacteria in clinical effluents and water samples. Most of these isolates were resistant to vancomycin, clindamycin, ampicillin, rifampicin, penicillin-G, methicillin and cefdinir, and evidenced the production of extended-spectrum β-lactamase enzyme. Toxic metals such as cadmium, copper, iron, lead and zinc also exert a selection pressure towards antibiotic resistance. Pseudomonas aeruginosa strain GCC_19W3, Bacillus sp. strain GCC_19S2 and Achromobacter spanius strain GCC_SB1 showed β-hemolysis, evidenced by the complete breakdown of the red blood cells. Highest auto-aggregation was exhibited by Bacillus sp. strain GCC_19S2; whereas, maximum cell-surface hydrophobicity was displayed by P. aeruginosa strain GCC_19W1. Antagonistic activity by Stenotrophomonas maltophilia strain GCC_19W2, P. aeruginosa strain GCC_19W3 and strains of Achromobacter restricts the growth of other microorganisms by producing some bactericidal substances. The study emphasises undertaking safety measures for the disposal of clinical effluents directly into the environment. The study suggests adopting necessary measures and regulations to restrict the spread of emerging pathogens within the hospital biome and community, which if unnoticed, might pose a significant clinical challenge.
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Affiliation(s)
- Soumitra Nath
- Department of Biotechnology, Gurucharan College, Silchar, Assam, India
- Bioinformatics Centre, Gurucharan College, Silchar, Assam, India
- Institutional Biotech Hub, Gurucharan College, Silchar, Assam, India
| | - Ahana Sinha
- Department of Biotechnology, Gurucharan College, Silchar, Assam, India
| | | | - Ankita Dey
- Department of Biotechnology, Gurucharan College, Silchar, Assam, India
| | | | - Bibhas Deb
- Department of Biotechnology, Gurucharan College, Silchar, Assam, India
- Bioinformatics Centre, Gurucharan College, Silchar, Assam, India
- Institutional Biotech Hub, Gurucharan College, Silchar, Assam, India
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Nataraj BH, Ali SA, Behare PV, Yadav H. Postbiotics-parabiotics: the new horizons in microbial biotherapy and functional foods. Microb Cell Fact 2020; 19:168. [PMID: 32819443 PMCID: PMC7441679 DOI: 10.1186/s12934-020-01426-w] [Citation(s) in RCA: 226] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022] Open
Abstract
Probiotics have several health benefits by modulating gut microbiome; however, techno-functional limitations such as viability controls have hampered their full potential applications in the food and pharmaceutical sectors. Therefore, the focus is gradually shifting from viable probiotic bacteria towards non-viable paraprobiotics and/or probiotics derived biomolecules, so-called postbiotics. Paraprobiotics and postbiotics are the emerging concepts in the functional foods field because they impart an array of health-promoting properties. Although, these terms are not well defined, however, for time being these terms have been defined as here. The postbiotics are the complex mixture of metabolic products secreted by probiotics in cell-free supernatants such as enzymes, secreted proteins, short chain fatty acids, vitamins, secreted biosurfactants, amino acids, peptides, organic acids, etc. While, the paraprobiotics are the inactivated microbial cells of probiotics (intact or ruptured containing cell components such as peptidoglycans, teichoic acids, surface proteins, etc.) or crude cell extracts (i.e. with complex chemical composition)". However, in many instances postbiotics have been used for whole category of postbiotics and parabiotics. These elicit several advantages over probiotics like; (i) availability in their pure form, (ii) ease in production and storage, (iii) availability of production process for industrial-scale-up, (iv) specific mechanism of action, (v) better accessibility of Microbes Associated Molecular Pattern (MAMP) during recognition and interaction with Pattern Recognition Receptors (PRR) and (vi) more likely to trigger only the targeted responses by specific ligand-receptor interactions. The current review comprehensively summarizes and discussed various methodologies implied to extract, purify, and identification of paraprobiotic and postbiotic compounds and their potential health benefits.
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Affiliation(s)
- Basavaprabhu H Nataraj
- Technofunctional Starters Lab, National Collection of Dairy Cultures (NCDC), Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Syed Azmal Ali
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Pradip V Behare
- Technofunctional Starters Lab, National Collection of Dairy Cultures (NCDC), Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India.
| | - Hariom Yadav
- Department of Internal Medicine-Molecular Medicine and Microbiology and Immunology, Wake Forest School of Medicine, Biotech Place, Room 2E-034, 575 North Patterson Ave, Winston-Salem, NC, 27101, USA.
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Dey DK, Chang SN, Vadlamudi Y, Park JG, Kang SC. Synergistic therapy with tangeretin and 5-fluorouracil accelerates the ROS/JNK mediated apoptotic pathway in human colorectal cancer cell. Food Chem Toxicol 2020; 143:111529. [PMID: 32619557 DOI: 10.1016/j.fct.2020.111529] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/05/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022]
Abstract
Synergistic therapy is emerging as a promising strategy for improving the chemotherapeutic efficacy of anticancer drugs. Addition of adjuvants with standard anticancer drugs has shown successful reduction of adverse side effects. The synthetic drug 5-Fluorouracil (5-FU) shows several side effects upon prolonged chemotherapy, thereby restricting its long-term clinical application. Several studies have reported anticancer potential and anti-inflammatory activity of tangeretin (TAN) towards mammalian cells. Therefore, we investigate whether the combination of TAN with 5-FU increases their anticancer potential against colorectal cancer. In this study, we examined the synergistic activity of TAN and 5-FU on the viability of several human cancer and normal cells. Several possible mechanistic pathways were screened, and found that co-exposure of TAN and 5-FU accelerates oxidative-stress and increases endogenous-ROS generation, which sequentially triggers the DNA damage response and activates the apoptotic pathway, by down-regulating autophagy and DNA repair system in HCT-116 cells. TAN and 5-FU co-treatment also remarkably reduces the mitochondrial membrane potential, and sequentially decreases ATPase activity. Collectively, results indicate that combination of TAN and 5-FU significantly accelerates apoptosis via JNK mediated pathway. To our knowledge gained from literature, this study is the first to describe synergistic activity of TAN and 5-FU against colorectal cancer cells.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Sukkum Ngullie Chang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | | | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea.
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21
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Dey DK, Park J, Kang SC. Genotypic, phenotypic, and pathogenic characterization of the soil isolated Acinetobacter courvalinii. Microb Pathog 2020; 149:104287. [PMID: 32569787 DOI: 10.1016/j.micpath.2020.104287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/20/2020] [Accepted: 05/26/2020] [Indexed: 10/24/2022]
Abstract
Most of the human gene homologs are found in Caenorhabditis elegans. As a wide variety of micro-organisms present in the environment is pathogens, so, C. elegans could be a useful model to track future infectious disease. With this knowledge, in this study, we isolated Acinetobacter courvalinii from the soil and characterized its pathogenicity for the first time. For the isolation, we used Glucose-Yeast extract-Ethanol-Calcium carbonate medium. To this aim, we evaluated the resistivity of bacteria against several stressful microenvironments. As we observed, A. courvalinii JP_A1001 shown highly tolerance against the acidic environment (pH 3-7), resistant against up to 0.2% of phenol content, and survived in the medium supplemented with 0.3% of bile salt. In addition, the bacteria were also resistant against several antibiotics showing the property of multidrug-resistant bacteria. Moreover, the isolated bacteria have shown the biofilm formation ability within 60 h. Further, we found that incubation of C. elegans with A. courvalinii JP_A1001 decreased the body movement and increased the free radical generation which remarkably influenced the life expectancy of C. elegans compared to E. coli OP50. Therefore, we concluded that A. courvalinii JP_A1001 found in the soil could be a future threat as a pathogen to public health.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
| | - Joonmo Park
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
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22
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Dey DK, Kang SC. Weissella confusa DD_A7 pre-treatment to zebrafish larvae ameliorates the inflammation response against Escherichia coli O157:H7. Microbiol Res 2020; 237:126489. [PMID: 32464536 DOI: 10.1016/j.micres.2020.126489] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/14/2020] [Accepted: 04/25/2020] [Indexed: 11/17/2022]
Abstract
Increasing multidrug-resistant pathogenic bacterial contamination in the environment has become the leading cause of food poisoning, resulting in life-threatening conditions due to late detection and limited therapeutic options. Escherichia coli O157:H7 is one such pathogen which is severely affecting the environmental livestock and ultimately leads to human infection. In this context, probiotics could be a useful strategy to minimize the growth of pathogens, as they produce several antimicrobial compounds and shows an exclusive competitive behavior against the pathogens. Therefore, supplementation of probiotics is wieldy accepted in the field of agriculture for the maintenance of animal's health. Previously, we reported that W. confusa DD_A7 possesses anti-bacterial and immune-stimulatory activity in-vitro. Therefore, in the present study, we investigated the impact of oral-administration of DD_A7 powder against E. coli O157:H7. The 6 days post-fertilized zebrafish larvae were used to evaluate the pathogenicity of the microbe. 1 × 108 CFU/ml of E. coli O157:H7 effectively induced the inflammatory response in zebrafish larvae. Where 1 × 108 CFU/ml DD_A7 pre-treatment prolonged the survivability of zebrafish larvae and improved the immune response of zebrafish larvae against pathogenic infection. The antibacterial property of DD_A7 against the pathogen correlated with the significant reduction of oxidative stress and host inflammatory response, by inhibiting NF-κB and its downstream signaling pathway. The findings demonstrated the prophylactic activity of DD_A7 suggesting that its supplementation improved the host defense mechanism by reducing oxidative stress. The growth of pathogen was effectively suppressed in the DD_A7 pre-treated larvae and maintained a healthy gastrointestinal environment in the zebrafish model.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, College of Engineering, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
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23
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Jung HG, Kim HH, Dey DK, Yu JM, Kim H, Cho YH, Jang JY, Park JY, Kang SC, An BJ. The Anti-inflammatory and Immune-Boosting Potential of Quercetin-3-O-β-D-glucopyranosyl-(1 → 6)-β-D-glucopyranoside in LPS–Stimulated RAW264.7 Macrophages. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s43450-020-00027-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Khan I, Bahuguna A, Shukla S, Aziz F, Chauhan AK, Ansari MB, Bajpai VK, Huh YS, Kang SC. Antimicrobial potential of the food-grade additive carvacrol against uropathogenic E. coli based on membrane depolarization, reactive oxygen species generation, and molecular docking analysis. Microb Pathog 2020; 142:104046. [PMID: 32061823 DOI: 10.1016/j.micpath.2020.104046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 02/05/2020] [Accepted: 02/05/2020] [Indexed: 11/26/2022]
Abstract
The antibiotic resistance of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli has increased drastically in recent years. In our study, we determined the principle mechanisms of action for the food-grade additive carvacrol against ESBL E. coli isolated from the blood of patients with a urinary tract infection. Carvacrol, which has a minimum inhibitory concentration of 150 μg/ml and a minimum bactericidal concentration of 300 μg/ml, reduced E. coli cell counts in a time-dependent manner. After treatment with carvacrol, the E. coli killing time was found to be 120 min. Fluorescent staining confirmed an increase in bacterial cell death, greater membrane depolarization, and an elevated oxidative burst in carvacrol-treated E. coli. Carvacrol also induced the release of cellular DNA, proteins, and potassium ions from bacterial cells and reduced both the number of E. coli in invasion assays against macrophages and the levels of the inflammatory proteins TNF-α and COX-2. In addition, carvacrol was found to inhibit β-lactamase enzyme activity (in vitro), which was supported by in silico results. Moreover, carvacrol inhibited motility, and protected against bacterial invasion. Overall, the findings suggest that carvacrol has significant antimicrobial potential against ESBL E. coli.
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Affiliation(s)
- Imran Khan
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, Republic of Korea; Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 712-714, Republic of Korea; The Hormel Institute, University of Minnesota, MN 55912, USA
| | - Ashutosh Bahuguna
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 712-714, Republic of Korea
| | - Shruti Shukla
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, 131028, India
| | - Faisal Aziz
- The Hormel Institute, University of Minnesota, MN 55912, USA
| | - Anil Kumar Chauhan
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 712-714, Republic of Korea
| | - Mohd Bismillah Ansari
- SABIC Technology & Innovation Centre, Saudi Basic Industries Corporation (SABIC), Riyadh, 11551, Saudi Arabia
| | - Vivek K Bajpai
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul, 04620, Republic of Korea.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 712-714, Republic of Korea.
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25
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Characterization and Analysis of the Skin Microbiota in Rosacea: Impact of Systemic Antibiotics. J Clin Med 2020; 9:jcm9010185. [PMID: 31936625 PMCID: PMC7019287 DOI: 10.3390/jcm9010185] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 02/06/2023] Open
Abstract
Systemic antibiotics are extensively used to control the papules and pustules of rosacea. Hence, it is crucial to understand their impact on the rosacea skin microbiota which is thought to be perturbed. The purpose of this study was to compare the makeup and diversity of the skin microbiota in rosacea before and after taking oral antibiotics. We also compared the skin microbiota at baseline according to age and rosacea severity. A longitudinal cohort study was performed on 12 rosacea patients with papules/pustules and no recent use of oral and topical antimicrobials/retinoids. Patients were prescribed oral doxycycline, 100 mg, twice daily for six weeks. Skin areas on the cheek and nose were sampled for 16S ribosomal RNA gene sequencing at baseline, and after six weeks of doxycycline treatment. Eleven females and one male aged 20–79 (median 51) with a median Investigator’s Global Assessment score of 3 (moderate) were enrolled. At baseline, Staphylococcus epidermidis was the most dominant species followed by Cutibacterium acnes (formerly Propionibacterium acnes). In the 60 Over-age group, the prevalence of Cutibacterium acnes was lower than that of the 60 & Under-age group. Rosacea severity increased with age and was associated with a decrease in the relative abundance of Cutibacterium acnes and an increase of Snodgrassella alvi. Across all subjects, antibiotic treatment reduced clinical rosacea grades and was associated with an increase in the relative abundance of Weissella confusa (P = 0.008, 95% CI 0.13% to 0.61%). Bacterial diversity (alpha diversity) was not significantly altered by antibiotics treatment. Principal coordinates analysis showed mild clustering of samples by patient (ANOSIM, Analysis of Similarity, R = 0.119, P = 0.16) and scant clustering with treatment (ANOSIM, R = 0.002; P = 0.5). In conclusion, we believe that rosacea has a unique age-dependent characteristic (i.e., severity). Although we were not able to pinpoint a causative microbiota, our study provides a glimpse into the skin microbiota in rosacea and its modulation by systemic antibiotics.
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Dey DK, Koo BG, Sharma C, Kang SC. Characterization of Weissella confusa DD_A7 isolated from kimchi. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.05.089] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Chang SN, Khan I, Dey DK, Cho KH, Hwang BS, Bae KB, Kang SC, Park JG. Decursinol angelate ameliorates 12-O-tetradecanoyl phorbol-13-acetate (TPA) -induced NF-κB activation on mice ears by inhibiting exaggerated inflammatory cell infiltration, oxidative stress and pro-inflammatory cytokine production. Food Chem Toxicol 2019; 132:110699. [PMID: 31351099 DOI: 10.1016/j.fct.2019.110699] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/28/2022]
Abstract
Decursinol angelate (DA) is a pyranocoumarin purified from the roots of Angelica gigas. Here, we synthesized DA and determined its anti-inflammatory potential on TPA-induced mice ear inflammation. First, we evaluated the non-toxic behaviour of DA on HaCaT cells. Additionally, we observed the free radical scavenging potential of DA at 60 μM to be 50%. This finding was further supported by nitric oxide assay, malondialdehyde assay, H2DCFDA staining and western blotting analysis of antioxidant enzymes. DA also suppressed the activation and polarization of macrophage phagocytic activity on RAW 264.7 cells. We further evaluated the expression of ICAM-1, MCP-1, MIP-2 and MIP-1β on in-vivo model system. Consequently, DA significantly reduced the production of NF-κB and COX-2 induced proinflammatory cytokine levels on TPA induced ear edema. Inhibition of MAPK and transcriptional factor NF-κB was also validated by western blotting analysis of p-ERK, p-p38, IKKα, IKKγ, IκBα, NF-κB-p65. Immunohistochemistry and immunofluorescence staining of NFκB-p65, TNF-α and IL-1β were also performed to support the findings. Conclusively, these results suggest that topical administration of DA significantly inhibited the expression of pro-inflammatory cytokines by blocking the canonical NF-κB and MAPK pathway. Therefore, we suggest DA as a potent therapeutic compound against skin inflammation related diseases.
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Affiliation(s)
- Sukkum Ngullie Chang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Imran Khan
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, Republic of Korea
| | - Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Kiu-Hyung Cho
- Research group, Gyeongbuk Institute for Bio Industry(GIB), Andong, 36728, Republic of Korea
| | - Buyng Su Hwang
- Nakdonggang National Institute of Biological Resources, Sangju, 37242, Republic of Korea
| | - Ki Beom Bae
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea.
| | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea
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