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Wang S, Wang P, Wang D, Shen S, Wang S, Li Y, Chen H. Postbiotics in inflammatory bowel disease: efficacy, mechanism, and therapeutic implications. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 39007163 DOI: 10.1002/jsfa.13721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 05/29/2024] [Accepted: 06/19/2024] [Indexed: 07/16/2024]
Abstract
Inflammatory bowel disease (IBD) is one of the most challenging diseases in the 21st century, and more than 10 million people around the world suffer from IBD. Because of the limitations and adverse effects associated with conventional IBD therapies, there has been increased scientific interest in microbial-derived biomolecules, known as postbiotics. Postbiotics are defined as the preparation of inanimate microorganisms and/or their components that confer a health benefit on the host, comprising inactivated microbial cells, cell fractions, metabolites, etc. Postbiotics have shown potential in enhancing IBD treatment by reducing inflammation, modulating the immune system, stabilizing intestinal flora and maintaining the integrity of intestinal barriers. Consequently, they are considered promising adjunctive therapies for IBD. Recent studies indicate that postbiotics offer distinctive advantages, including spanning clinical (safe origin), technological (easy for storage and transportation) and economic (reduced production costs) dimensions, rendering them suitable for widespread applications in functional food/pharmaceutical. This review offers a comprehensive overview of the definition, classification and applications of postbiotics, with an emphasis on their biological activity in both the prevention and treatment of IBD. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Shuxin Wang
- Marine College, Shandong University, Weihai, China
| | - Pu Wang
- Marine College, Shandong University, Weihai, China
| | - Donghui Wang
- Marine College, Shandong University, Weihai, China
| | | | - Shiqi Wang
- Marine College, Shandong University, Weihai, China
| | - Yuanyuan Li
- Department of Food Science, Cornell University, Ithaca, NY, USA
| | - Hao Chen
- Marine College, Shandong University, Weihai, China
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Maruška A, Mickienė R, Kaškonienė V, Grigiškis S, Stankevičius M, Drevinskas T, Kornyšova O, Donati E, Tiso N, Mikašauskaitė-Tiso J, Zacchini M, Levišauskas D, Ragažinskienė O, Bimbiraitė-Survilienė K, Kanopka A, Dūda G. Searching for Chemical Agents Suppressing Substrate Microbiota in White-Rot Fungi Large-Scale Cultivation. Microorganisms 2024; 12:1242. [PMID: 38930624 PMCID: PMC11206069 DOI: 10.3390/microorganisms12061242] [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: 04/08/2024] [Revised: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Edible fungi are a valuable resource in the search for sustainable solutions to environmental pollution. Their ability to degrade organic pollutants, extract heavy metals, and restore ecological balance has a huge potential for bioremediation. They are also sustainable food resources. Edible fungi (basidiomycetes or fungi from other divisions) represent an underutilized resource in the field of bioremediation. By maximizing their unique capabilities, it is possible to develop innovative approaches for addressing environmental contamination. The aim of the present study was to find selective chemical agents suppressing the growth of microfungi and bacteria, but not suppressing white-rot fungi, in order to perform large-scale cultivation of white-rot fungi in natural unsterile substrates and use it for different purposes. One application could be the preparation of a matrix composed of wooden sleeper (contaminated with PAHs) and soil for further hazardous waste bioremediation using white-rot fungi. In vitro microbiological methods were applied, such as, firstly, compatibility tests between bacteria and white-rot fungi or microfungi, allowing us to evaluate the interaction between different organisms, and secondly, the addition of chemicals on the surface of a Petri dish with a test strain of microorganisms of white-rot fungi, allowing us to determine the impact of chemicals on the growth of organisms. This study shows that white-rot fungi are not compatible to grow with several rhizobacteria or bacteria isolated from soil and bioremediated waste. Therefore, the impact of several inorganic materials, such as lime (hydrated form), charcoal, dolomite powder, ash, gypsum, phosphogypsum, hydrogen peroxide, potassium permanganate, and sodium hydroxide, was evaluated on the growth of microfungi (sixteen strains), white-rot fungi (three strains), and bacteria (nine strains) in vitro. Charcoal, dolomite powder, gypsum, and phosphogypsum did not suppress the growth either of microfungi or of bacteria in the tested substrate, and even acted as promoters of their growth. The effects of the other agents tested were strain dependent. Potassium permanganate could be used for bacteria and Candida spp. growth suppression, but not for other microfungi. Lime showed promising results by suppressing the growth of microfungi and bacteria, but it also suppressed the growth of white-rot fungi. Hydrogen peroxide showed strong suppression of microfungi, and even had a bactericidal effect on some bacteria, but did not have an impact on white-rot fungi. The study highlights the practical utility of using hydrogen peroxide up to 3% as an effective biota-suppressing chemical agent prior to inoculating white-rot fungi in the large-scale bioremediation of polluted substrates, or in the large-scale cultivation for mushroom production as a foodstuff.
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Affiliation(s)
- Audrius Maruška
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Rūta Mickienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Vilma Kaškonienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | | | - Mantas Stankevičius
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Tomas Drevinskas
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Olga Kornyšova
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Enrica Donati
- National Research Council, Area Della Ricerca di Roma 1, Via Salaria Km 29,300, Monterotondo, 00015 Rome, Italy; (E.D.); (M.Z.)
| | - Nicola Tiso
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Jurgita Mikašauskaitė-Tiso
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Massimo Zacchini
- National Research Council, Area Della Ricerca di Roma 1, Via Salaria Km 29,300, Monterotondo, 00015 Rome, Italy; (E.D.); (M.Z.)
| | - Donatas Levišauskas
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
- Process Control Department, Kaunas University of Technology, Studentų St. 50, LT-51368 Kaunas, Lithuania
| | - Ona Ragažinskienė
- Botanical Garden of Vytautas Magnus University, Ž. E. Žilibero 6, LT-46324 Kaunas, Lithuania;
| | - Kristina Bimbiraitė-Survilienė
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Arvydas Kanopka
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
| | - Gediminas Dūda
- Instrumental Analysis Open Access Centre, Vytautas Magnus University, Vileikos St. 8, LT-40444 Kaunas, Lithuania; (R.M.); (V.K.); (M.S.); (T.D.); (O.K.); (N.T.); (J.M.-T.); (D.L.); (K.B.-S.); (A.K.); (G.D.)
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Wu P, Yang J, Meng X, Weng Y, Lin Y, Li R, Lv X, Ni L, Han JZ, Fu C. The inhibitory action of lactocin 63 on deterioration of seabass (Lateolabrax japonicus) during chilled storage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:4015-4027. [PMID: 38294304 DOI: 10.1002/jsfa.13284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND The bacteriocins, particularly derived from lactic acid bacteria, currently exhibit potential as a promising food preservative owing to their low toxicity and potent antimicrobial activity. This study aimed to evaluate the efficacy of lactocin 63, produced by Lactobacillus coryniformis, in inhibiting the deterioration of Lateolabrax japonicas during chilled storage, while also investigating its underlying inhibitory mechanism. The measurement of total viable count, biogenic amines, and volatile organic compounds were conducted, along with high-throughput sequencing and sensory evaluation. RESULTS The findings demonstrated that treatment with lactocin 63 resulted in a notable retardation of bacterial growth in L. japonicas fish fillet during refrigerated storage compared with the water-treated and nisin-treated groups. Moreover, lactocin 63 effectively maintained the microbial flora balance in the fish fillet and inhibited the proliferation and metabolic activity of specific spoilage microorganisms, particularly Shewanella, Pseudomonas, and Acinetobacter. Furthermore, the production of unacceptable volatile organic compounds (e.g. 1-octen-3-ol, hexanal, nonanal), as well as the biogenic amines derived from the bacterial metabolism, could be hindered, thus preventing the degradation in the quality of fish fillets and sustaining relatively high sensory quality. CONCLUSION The results of this study provide valuable theoretical support for the development and application of lactocin 63, or other bacteriocins derived from lactic acid bacteria, as potential bio-preservatives in aquatic food. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Peifen Wu
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Jie Yang
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Xiaojie Meng
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Yanlin Weng
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Yayi Lin
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Ruili Li
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Xucong Lv
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Li Ni
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Jin-Zhi Han
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Caili Fu
- Fujian Key Laboratory of Inspection and Quarantine Technology Research, Fuzhou, China
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
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Reuben RC, Torres C. Bacteriocins: potentials and prospects in health and agrifood systems. Arch Microbiol 2024; 206:233. [PMID: 38662051 PMCID: PMC11045635 DOI: 10.1007/s00203-024-03948-y] [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: 02/02/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/26/2024]
Abstract
Bacteriocins are highly diverse, abundant, and heterogeneous antimicrobial peptides that are ribosomally synthesized by bacteria and archaea. Since their discovery about a century ago, there has been a growing interest in bacteriocin research and applications. This is mainly due to their high antimicrobial properties, narrow or broad spectrum of activity, specificity, low cytotoxicity, and stability. Though initially used to improve food quality and safety, bacteriocins are now globally exploited for innovative applications in human, animal, and food systems as sustainable alternatives to antibiotics. Bacteriocins have the potential to beneficially modulate microbiota, providing viable microbiome-based solutions for the treatment, management, and non-invasive bio-diagnosis of infectious and non-infectious diseases. The use of bacteriocins holds great promise in the modulation of food microbiomes, antimicrobial food packaging, bio-sanitizers and antibiofilm, pre/post-harvest biocontrol, functional food, growth promotion, and sustainable aquaculture. This can undoubtedly improve food security, safety, and quality globally. This review highlights the current trends in bacteriocin research, especially the increasing research outputs and funding, which we believe may proportionate the soaring global interest in bacteriocins. The use of cutting-edge technologies, such as bioengineering, can further enhance the exploitation of bacteriocins for innovative applications in human, animal, and food systems.
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Affiliation(s)
- Rine Christopher Reuben
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006, Logroño, Spain.
| | - Carmen Torres
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006, Logroño, Spain
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He X, Yu Y, Kemperman R, Jimenez L, Ahmed Sadiq F, Zhang G. Comparative Genomics Reveals Genetic Diversity and Variation in Metabolic Traits in Fructilactobacillus sanfranciscensis Strains. Microorganisms 2024; 12:845. [PMID: 38792675 PMCID: PMC11124214 DOI: 10.3390/microorganisms12050845] [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: 04/08/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
Fructilactobacillus sanfranciscensis is a significant and dominant bacterial species of sourdough microbiota from ecological and functional perspectives. Despite the remarkable prevalence of different strains of this species in sourdoughs worldwide, the drivers behind the genetic diversity of this species needed to be clarified. In this research, 14 F. sanfranciscensis strains were isolated from sourdough samples to evaluate the genetic diversity and variation in metabolic traits. These 14 and 31 other strains (obtained from the NCBI database) genomes were compared. The values for genome size and GC content, on average, turned out to 1.31 Mbp and 34.25%, respectively. In 45 F. sanfranciscensis strains, there were 162 core genes and 0 to 51 unique genes present in each strain. The primary functions of core genes were related to nucleotide, lipid transport, and amino acid, as well as carbohydrate metabolism. The size of core genes accounted for 41.18% of the pan-genome size in 14 F. sanfranciscensis strains, i.e., 0.70 Mbp of 1.70 Mbp. There were genetic variations among the 14 strains involved in carbohydrate utilization and antibiotic resistance. Moreover, exopolysaccharides biosynthesis-related genes were annotated, including epsABD, wxz, wzy. The Type IIA & IE CRISPR-Cas systems, pediocin PA-1 and Lacticin_3147_A1 bacteriocins operons were also discovered in F. sanfranciscensis. These findings can help to select desirable F. sanfranciscensis strains to develop standardized starter culture for sourdough fermentation, and expect to provide traditional fermented pasta with a higher quality and nutritional value for the consumers.
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Affiliation(s)
- Xiaxia He
- School of Life Science, Shanxi University, Taiyuan 030006, China; (X.H.); (Y.Y.)
| | - Yujuan Yu
- School of Life Science, Shanxi University, Taiyuan 030006, China; (X.H.); (Y.Y.)
| | - Rober Kemperman
- Lesaffre Insituut of Science and Technology, 101 Rue de Menin, 59700 Marc-en-Baroeul, France; (R.K.); (L.J.)
| | - Luciana Jimenez
- Lesaffre Insituut of Science and Technology, 101 Rue de Menin, 59700 Marc-en-Baroeul, France; (R.K.); (L.J.)
| | - Faizan Ahmed Sadiq
- Advanced Therapies Group, School of Dentistry, Cardiff University, Cardiff CF14 4XY, UK;
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Burgemeester Van Gansberghelaan 92/1, 9820 Merelbeke, Belgium
| | - Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan 030006, China; (X.H.); (Y.Y.)
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Rahman MM, Siddique N, Akter S, Das ZC, Hoque MN. Draft genome sequencing of Pediococcus pentosaceus strains isolated from cow milk. Microbiol Resour Announc 2024; 13:e0023824. [PMID: 38619270 PMCID: PMC11080533 DOI: 10.1128/mra.00238-24] [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: 03/09/2024] [Accepted: 03/28/2024] [Indexed: 04/16/2024] Open
Abstract
We sequenced the genomes of Pediococcus pentosaceus strains MBBL4 and MBBL6, isolated from raw milk samples of healthy cows. The draft genomes of the MBBL4 and MBBL6 were 1,896,831 bp and 1,849,397 bp, respectively, and were fragmented into 58 and 42 contigs, with coverages of 118.2× and 128.7×, respectively.
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Affiliation(s)
- Md. Morshedur Rahman
- Molecular Biology and Bioinformatics Laboratory, Department of Gynaecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
| | - Naim Siddique
- Molecular Biology and Bioinformatics Laboratory, Department of Gynaecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
| | - Salma Akter
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka, Bangladesh
| | - Ziban Chandra Das
- Molecular Biology and Bioinformatics Laboratory, Department of Gynaecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
| | - M. Nazmul Hoque
- Molecular Biology and Bioinformatics Laboratory, Department of Gynaecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
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Outeiriño D, Costa-Trigo I, Ochogavias A, Pinheiro de Souza Oliveira R, Pérez Guerra N, Salgado JM, Domínguez JM. Biorefinery of brewery spent grain to obtain bioproducts with high value-added in the market. N Biotechnol 2024; 79:111-119. [PMID: 38158018 DOI: 10.1016/j.nbt.2023.12.010] [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: 03/31/2023] [Revised: 12/03/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
The brewery industry is under economic and environmental pressure to minimize residual management costs, particularly brewery spent grain (BSG), which accounts for 80-85% (w/w) of the total by-products generated. BSG is a lignocellulosic material primarily composed of carbohydrates, proteins and lipids. Developing a biorefinery model for conversion of BSG into value-added products is a plausible idea. Previous work optimized the pretreatment of BSG with the ionic liquid [N1112OH][Gly] and further release of fermentable sugar-containing solutions by enzymatic hydrolysis, using an enzymatic cocktail obtained by solid-state fermentation of BSG with Aspergillus brasiliensis CECT 2700 and Trichoderma reesei CECT 2414. The current work ends the biorefinery process, studying the fermentation of these culture media with two LAB strains, Lactobacillus pentosus CECT 4023 and Lactobacillus plantarum CECT 221, from which the production of organic acids, bacteriocins, and microbial biosurfactants (mBS) was obtained. In addition to the bacteriocin activity observed, a mass balance of the whole biorefinery process quantified the production of 106.4 g lactic acid and 6.76 g mBS with L. plantarum and 116.1 g lactic acid and 4.65 g mBS with L. pentosus from 1 kg of dry BSG. Thus, BSG shows a great potential for waste valorization, playing a major role in the implementation of biomass biorefineries in circular bioeconomy.
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Affiliation(s)
- David Outeiriño
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), 32004 Ourense, Spain
| | - Iván Costa-Trigo
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), 32004 Ourense, Spain
| | - Aida Ochogavias
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), 32004 Ourense, Spain
| | - Ricardo Pinheiro de Souza Oliveira
- Biochemical and Pharmaceutical Technology Department, Faculty of Pharmaceutical Sciences, São Paulo University, Av. Prof Lineu Prestes, 580, Bl 16, São Paulo 05508-900, Brazil
| | - Nelson Pérez Guerra
- Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo (Campus Ourense), As Lagoas s/n, 32004 Ourense, Spain
| | - José Manuel Salgado
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), 32004 Ourense, Spain
| | - José Manuel Domínguez
- Industrial Biotechnology and Environmental Engineering Group "BiotecnIA", Chemical Engineering Department, University of Vigo (Campus Ourense), 32004 Ourense, Spain.
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Cui R, Zhang C, Pan ZH, Hu TG, Wu H. Probiotic-fermented edible herbs as functional foods: A review of current status, challenges, and strategies. Compr Rev Food Sci Food Saf 2024; 23:e13305. [PMID: 38379388 DOI: 10.1111/1541-4337.13305] [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: 09/17/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/22/2024]
Abstract
Recently, consumers have become increasingly interested in natural, health-promoting, and chronic disease-preventing medicine and food homology (MFH). There has been accumulating evidence that many herbal medicines, including MFH, are biologically active due to their biotransformation through the intestinal microbiota. The emphasis of scientific investigation has moved from the functionally active role of MFH to the more subtle role of biotransformation of the active ingredients in probiotic-fermented MFH and their health benefits. This review provides an overview of the current status of research on probiotic-fermented MFH. Probiotics degrade toxins and anti-nutritional factors in MFH, improve the flavor of MFH, and increase its bioactive components through their transformative effects. Moreover, MFH can provide a material base for the growth of probiotics and promote the production of their metabolites. In addition, the health benefits of probiotic-fermented MFH in recent years, including antimicrobial, antioxidant, anti-inflammatory, anti-neurodegenerative, skin-protective, and gut microbiome-modulating effects, are summarized, and the health risks associated with them are also described. Finally, the future development of probiotic-fermented MFH is prospected in combination with modern development technologies, such as high-throughput screening technology, synthetic biology technology, and database construction technology. Overall, probiotic-fermented MFH has the potential to be used in functional food for preventing and improving people's health. In the future, personalized functional foods can be expected based on synthetic biology technology and a database on the functional role of probiotic-fermented MFH.
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Affiliation(s)
- Rui Cui
- School of Food Science and Engineering, South China University of Technology/Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou, China
| | - Cong Zhang
- School of Food Science and Engineering, South China University of Technology/Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou, China
| | - Zhen-Hui Pan
- School of Food Science and Engineering, South China University of Technology/Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou, China
| | - Teng-Gen Hu
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Hong Wu
- School of Food Science and Engineering, South China University of Technology/Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou, China
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Desiderato CK, Müller C, Schretzmeier A, Hasenauer KM, Gnannt B, Süpple B, Reiter A, Steier V, Oldiges M, Eikmanns BJ, Riedel CU. Optimized recombinant production of the bacteriocin garvicin Q by Corynebacterium glutamicum. Front Microbiol 2024; 14:1254882. [PMID: 38260893 PMCID: PMC10800739 DOI: 10.3389/fmicb.2023.1254882] [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: 07/07/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Bacteriocins are antimicrobial peptides applied in food preservation and are interesting candidates as alternatives to conventional antibiotics or as microbiome modulators. Recently, we established Corynebacterium glutamicum as a suitable production host for various bacteriocins including garvicin Q (GarQ). Here, we establish secretion of GarQ by C. glutamicum via the Sec translocon achieving GarQ titers of about 7 mg L-1 in initial fermentations. At neutral pH, the cationic peptide is efficiently adsorbed to the negatively charged envelope of producer bacteria limiting availability of the bacteriocin in culture supernatants. A combination of CaCl2 and Tween 80 efficiently reduces GarQ adsorption to C. glutamicum. Moreover, cultivation in minimal medium supplemented with CaCl2 and Tween 80 improves GarQ production by C. glutamicum to about 15 mg L-1 but Tween 80 resulted in reduced GarQ activity at later timepoints. Using a reporter strain and proteomic analyses, we identified HtrA, a protease associated with secretion stress, as another potential factor limiting GarQ production. Transferring production to HtrA-deficient C. glutamicum K9 improves GarQ titers to close to 40 mg L-1. Applying conditions of low aeration prevented loss in activity at later timepoints and improved GarQ titers to about 100 mg L-1. This is about 50-fold higher than previously shown with a C. glutamicum strain employing the native GarQ transporter GarCD for secretion and in the range of levels observed with the native producer Lactococcus petauri B1726. Additionally, we tested several synthetic variants of GarQ and were able to show that exchange of the methionine in position 5 to a phenylalanine (GarQM5F) results in markedly increased activity against Lactococcus lactis and Listeria monocytogenes. In summary, our findings shed light on several aspects of recombinant GarQ production that may also be of relevance for production with natural producers and other bacteriocins.
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Affiliation(s)
- Christian K. Desiderato
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Carolin Müller
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Alexander Schretzmeier
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Katharina M. Hasenauer
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Bruno Gnannt
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Bastian Süpple
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Alexander Reiter
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Valentin Steier
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Marco Oldiges
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Bernhard J. Eikmanns
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Christian U. Riedel
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
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10
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Wang C, Kuzyakov Y. Mechanisms and implications of bacterial-fungal competition for soil resources. THE ISME JOURNAL 2024; 18:wrae073. [PMID: 38691428 PMCID: PMC11104273 DOI: 10.1093/ismejo/wrae073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/24/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Elucidating complex interactions between bacteria and fungi that determine microbial community structure, composition, and functions in soil, as well as regulate carbon (C) and nutrient fluxes, is crucial to understand biogeochemical cycles. Among the various interactions, competition for resources is the main factor determining the adaptation and niche differentiation between these two big microbial groups in soil. This is because C and energy limitations for microbial growth are a rule rather than an exception. Here, we review the C and energy demands of bacteria and fungi-the two major kingdoms in soil-the mechanisms of their competition for these and other resources, leading to niche differentiation, and the global change impacts on this competition. The normalized microbial utilization preference showed that bacteria are 1.4-5 times more efficient in the uptake of simple organic compounds as substrates, whereas fungi are 1.1-4.1 times more effective in utilizing complex compounds. Accordingly, bacteria strongly outcompete fungi for simple substrates, while fungi take advantage of complex compounds. Bacteria also compete with fungi for the products released during the degradation of complex substrates. Based on these specifics, we differentiated spatial, temporal, and chemical niches for these two groups in soil. The competition will increase under the main five global changes including elevated CO2, N deposition, soil acidification, global warming, and drought. Elevated CO2, N deposition, and warming increase bacterial dominance, whereas soil acidification and drought increase fungal competitiveness.
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Affiliation(s)
- Chaoqun Wang
- National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an 271018, Shandong, China
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen 37077, Germany
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver V6T1Z4, Canada
| | - Yakov Kuzyakov
- National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an 271018, Shandong, China
- Department of Soil Science of Temperate Ecosystems, University of Göttingen, Göttingen 37077, Germany
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11
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R PA, Anbarasu A. Antimicrobial Peptides as Immunomodulators and Antimycobacterial Agents to Combat Mycobacterium tuberculosis: a Critical Review. Probiotics Antimicrob Proteins 2023; 15:1539-1566. [PMID: 36576687 DOI: 10.1007/s12602-022-10018-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2022] [Indexed: 12/29/2022]
Abstract
Tuberculosis (TB) is a devastating disease foisting a significantly high morbidity, prepotent in low- and middle-income developing countries. Evolution of drug resistance among Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, has made the TB treatment more complicated. The protracted nature of present TB treatment, persistent and tolerant Mtb populations, interaction with antiretroviral therapy and existing toxicity concerned with conventional anti-TB drugs are the four major challenges inflicted with emergence of drug-resistant mycobacterial strains, and the standard medications are unable to combat these strains. These factors emphasize an exigency to develop new drugs to overcome these barriers in current TB therapy. With this regard, antimycobacterial peptides derived from various sources such as human cells, bacterial sources, mycobacteriophages, fungal, plant and animal sources could be considered as antituberculosis leads as most of these peptides are associated with dual advantages of having both bactericidal activity towards Mtb as well as immuno-regulatory property. Some of the peptides possess the additional advantage of interacting synergistically with antituberculosis medications too, thereby increasing their efficiency, underscoring the vigour of antimicrobial peptides (AMPs) as best possible alternative therapeutic candidates or adjuvants in TB treatment. Albeit the beneficiary features of these peptides, few obstacles allied with them like cytotoxicity and proteolytic degradation are matter of concerns too. In this review, we have focused on structural hallmarks, targeting mechanisms and specific structural aspects contributing to antimycobacterial activity and discovered natural and synthetic antimycobacterial peptides along with their sources, anti-TB, immuno-regulatory properties, merits and demerits and possible delivery methods of AMPs.
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Affiliation(s)
- Preethi A R
- Medical & Biological Computing Laboratory, School of Bio-Sciences & Technology, Vellore Institute of Technology, Vellore-632014, India
- Department of Biotechnology, SBST, VIT, Vellore-632014, Tamil Nadu, India
| | - Anand Anbarasu
- Medical & Biological Computing Laboratory, School of Bio-Sciences & Technology, Vellore Institute of Technology, Vellore-632014, India.
- Department of Biotechnology, SBST, VIT, Vellore-632014, Tamil Nadu, India.
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12
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Peng Z, Xiong T, Huang T, Xu X, Fan P, Qiao B, Xie M. Factors affecting production and effectiveness, performance improvement and mechanisms of action of bacteriocins as food preservative. Crit Rev Food Sci Nutr 2023; 63:12294-12307. [PMID: 35866501 DOI: 10.1080/10408398.2022.2100874] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Modern society is increasingly attracted with safe, natural, and additive-free food products, that gives preference to bacteriocins produced by General Recognized as Safe bacteria as a food preservative. Bacteriocins have been reported to be effective in extending shelf life of diverse foods such as meats, dairy products, wine, juice, and fruits and vegetables, whereas commercialized bacteriocins remain only nisin, pediocin, and Micocin. It is important that commercialized preservatives undergo an easy-to-handle manufacturing while maintaining high efficacy. Limited application of bacteriocins is most often caused by the absence of legislatives for use, low production, high cost and complicated purification process, reduced efficiency in the complex food matrix and insufficiently defined mechanism of action. Accordingly, this review provides an overview of bacteriocins, in relation to production stimulation, general purification scheme, impact of food matrix on bacteriocin effectiveness, and collaborative technology to improve bacteriocin performances. It is worth to note that purification and performance improvement technology remain the two challenging tasks in promoting bacteriocins as a widely used bio-preservative. Furthermore, this review for the first time divides bacteriocin receptors into specific classes (class I, II, III) and nonspecific class, to provide a basis for an in-depth understanding of the mechanism of action.
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Affiliation(s)
- Zhen Peng
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Tao Xiong
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Tao Huang
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaoyan Xu
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Pengrong Fan
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Baoling Qiao
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Mingyong Xie
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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13
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Hwang SH, Maung CEH, Noh JS, Cho JY, Kim KY. Butyl succinate-mediated control of Bacillus velezensis ce 100 for apple anthracnose caused by Colletotrichum gloeosporioides. J Appl Microbiol 2023; 134:lxad247. [PMID: 37903743 DOI: 10.1093/jambio/lxad247] [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: 08/12/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 11/01/2023]
Abstract
AIMS Microbial biocontrol agents have become an effective option to mitigate the harmfulness of chemical pesticides in recent years. This study demonstrates the control efficacy of Bacillus velezensis CE 100 on the anthracnose causal agent, Colletotrichum gloeosporioides. METHODS AND RESULTS In vitro antifungal assays revealed that the culture filtrate and volatile organic compounds of B. velezensis CE 100 strongly restricted the mycelial development of C. gloeosporioides. Moreover, a bioactive compound, butyl succinate, was isolated from the n-butanol crude extract of B. velezensis CE 100 (bce), and identified by liquid chromatography-electrospray ionization hybrid ion-trap and time-of-flight mass spectrometry (LC-ESI-QTOF-MS) and one-dimensional (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR). Treatment with purified butyl succinate at a concentration of 300 μg mL-1 strongly controlled conidial germination of C. gloeosporioides with an inhibition rate of 98.66%, whereas butyl succinate at a concentration of 400 μg mL-1 showed weak antifungal action on the mycelial growth of C. gloeosporioides with an inhibition rate of 31.25%. Scanning electron microscopy revealed that the morphologies of butyl succinate-treated hyphae and conidia of C. gloeosporioides were severely deformed with shriveled and wrinkled surfaces. Furthermore, butyl succinate was able to control carbendazim-resistant C. gloeosporioides, demonstrating that it could be a promising agent for the suppression of other carbendazim-resistant fungal pathogens. An in vivo biocontrol assay demonstrated that the strain ce 100 broth culture and butyl succinate showed higher control efficacy on apple anthracnose than bce. CONCLUSIONS Our findings provide insight into the antifungal potential of B. velezensis ce 100 and its butyl succinate for efficient control of phytopathogenic fungi, such as C. gloeosporiodes, in plant disease protection. This is the first study to demonstrate the antifungal potential of bacteria-derived butyl succinate for control of C. gloeosporioides.
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Affiliation(s)
- Seo Hyun Hwang
- Department of Agricultural Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Chaw Ei Htwe Maung
- Department of Agricultural and Biological Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jun Su Noh
- Department of Agricultural Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jeong-Yong Cho
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Kil Yong Kim
- Department of Agricultural and Biological Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
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14
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Kumar G, Engle K. Natural products acting against S. aureus through membrane and cell wall disruption. Nat Prod Rep 2023; 40:1608-1646. [PMID: 37326041 DOI: 10.1039/d2np00084a] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Covering: 2015 to 2022Staphylococcus aureus (S. aureus) is responsible for several community and hospital-acquired infections with life-threatening complications such as bacteraemia, endocarditis, meningitis, liver abscess, and spinal cord epidural abscess. In recent decades, the abuse and misuse of antibiotics in humans, animals, plants, and fungi and the treatment of nonmicrobial diseases have led to the rapid emergence of multidrug-resistant pathogens. The bacterial wall is a complex structure consisting of the cell membrane, peptidoglycan cell wall, and various associated polymers. The enzymes involved in bacterial cell wall synthesis are established antibiotic targets and continue to be a central focus for antibiotic development. Natural products play a vital role in drug discovery and development. Importantly, natural products provide a starting point for active/lead compounds that sometimes need modification based on structural and biological properties to meet the drug criteria. Notably, microorganisms and plant metabolites have contributed as antibiotics for noninfectious diseases. In this study, we have summarized the recent advances in understanding the activity of the drugs or agents of natural origin that directly inhibit the bacterial membrane, membrane components, and membrane biosynthetic enzymes by targeting membrane-embedded proteins. We also discussed the unique aspects of the active mechanisms of established antibiotics or new agents.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
| | - Kritika Engle
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
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15
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Zhou X, Gao M, De X, Sun T, Bai Z, Luo J, Wang F, Ge J. Bacterium-like particles derived from probiotics: progress, challenges and prospects. Front Immunol 2023; 14:1263586. [PMID: 37868963 PMCID: PMC10587609 DOI: 10.3389/fimmu.2023.1263586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
Bacterium-like particles (BLPs) are hollow peptidoglycan particles obtained from food-grade Lactococcus lactis inactivated by hot acid. With the advantage of easy preparation, high safety, great stability, high loading capacity, and high mucosal delivery efficiency, BLPs can load and display proteins on the surface with the help of protein anchor (PA), making BLPs a proper delivery system. Owning to these features, BLPs are widely used in the development of adjuvants, vaccine carriers, virus/antigens purification, and enzyme immobilization. This review has attempted to gather a full understanding of the technical composition, characteristics, applications. The mechanism by which BLPs induces superior adaptive immune responses is also discussed. Besides, this review tracked the latest developments in the field of BLPs, including Lactobacillus-derived BLPs and novel anchors. Finally, the main limitations and proposed breakthrough points to further enhance the immunogenicity of BLPs vaccines were discussed, providing directions for future research. We hope that further developments in the field of antigen delivery of subunit vaccines or others will benefit from BLPs.
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Affiliation(s)
- Xinyao Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Mingchun Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinqi De
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Tong Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Zhikun Bai
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, China
| | - Jilong Luo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Fang Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Harbin, China
| | - Junwei Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Zoonosis, Harbin, China
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16
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Prado NDR, Brilhante-Da-Silva N, Sousa RMO, Morais MSDS, Roberto SA, Luiz MB, Assis LCD, Marinho ACM, Araujo LFLD, Pontes RDS, Stabeli RG, Fernandes CFC, Pereira SDS. Single-domain antibodies applied as antiviral immunotherapeutics. J Virol Methods 2023; 320:114787. [PMID: 37516366 DOI: 10.1016/j.jviromet.2023.114787] [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: 12/12/2022] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Viral infections have been the cause of high mortality rates throughout different periods in history. Over the last two decades, outbreaks caused by zoonotic diseases and transmitted by arboviruses have had a significant impact on human health. The emergence of viral infections in different parts of the world encourages the search for new inputs to fight pathologies of viral origin. Antibodies represent the predominant class of new drugs developed in recent years and approved for the treatment of various human diseases, including cancer, autoimmune and infectious diseases. A promising group of antibodies are single-domain antibodies derived from camelid heavy chain immunoglobulins, or VHHs, are biomolecules with nanometric dimensions and unique pharmaceutical and biophysical properties that can be used in the diagnosis and immunotherapy of viral infections. For viral neutralization to occur, VHHs can act in different stages of the viral cycle, including the actual inhibition of infection, to hindering viral replication or assembly. This review article addresses advances involving the use of VHHs in therapeutic propositions aimed to battle different viruses that affect human health.
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Affiliation(s)
- Nidiane Dantas Reis Prado
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho, RO, Brazil
| | - Nairo Brilhante-Da-Silva
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho, RO, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, RJ, Brazil
| | - Rosa Maria Oliveira Sousa
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho, RO, Brazil
| | | | - Sibele Andrade Roberto
- Plataforma Bi-institucional de Medicina Translacional, Fundação Oswaldo Cruz-USP, Ribeirão Preto, SP, Brazil
| | - Marcos Barros Luiz
- Instituto Federal de Rondônia Campus Guajará-Mirim, IFRO, Guajará-Mirim, RO, Brazil
| | - Livia Coelho de Assis
- Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, RJ, Brazil; Laboratório Multiusuário de Pesquisa e Desenvolvimento, Fundação Oswaldo Cruz, Fiocruz unidade Ceará, Eusebio, CE, Brazil
| | - Anna Carolina M Marinho
- Laboratório Multiusuário de Pesquisa e Desenvolvimento, Fundação Oswaldo Cruz, Fiocruz unidade Ceará, Eusebio, CE, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Luiz Felipe Lemes de Araujo
- Plataforma Bi-institucional de Medicina Translacional, Fundação Oswaldo Cruz-USP, Ribeirão Preto, SP, Brazil; Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade de São Paulo, USP, Ribeirão Preto, SP, Brazil
| | - Rafael de Souza Pontes
- Plataforma Bi-institucional de Medicina Translacional, Fundação Oswaldo Cruz-USP, Ribeirão Preto, SP, Brazil; Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade de São Paulo, USP, Ribeirão Preto, SP, Brazil
| | - Rodrigo Guerino Stabeli
- Plataforma Bi-institucional de Medicina Translacional, Fundação Oswaldo Cruz-USP, Ribeirão Preto, SP, Brazil
| | - Carla Freire Celedonio Fernandes
- Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, RJ, Brazil; Laboratório Multiusuário de Pesquisa e Desenvolvimento, Fundação Oswaldo Cruz, Fiocruz unidade Ceará, Eusebio, CE, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Soraya Dos Santos Pereira
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho, RO, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil.
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Peng Z, He M, Yang X, Zhang J. Discovery and Characterization of a Novel Bacteriocin HA2-5 that Strongly Inhibits Propionibacterium acnes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12741-12748. [PMID: 37587448 DOI: 10.1021/acs.jafc.3c04617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Increased drug resistance has significantly reduced the effectiveness of antibiotics used in the treatment of Propionibacterium acnes. Therefore, there has been a trend toward the development of new antimicrobial agents to circumvent drug resistance. In this study, we isolated and purified a novel bacteriocin, HA2-5, from Bacillus haynesii HA2, which effectively killed P. acnes through membrane disruption at a minimum inhibitory concentration (MIC) of 8 μg/mL. HA2-5 with 2× MIC was able to kill 99.9% of P. acnes within 24 h. HA2-5 shows excellent stability and tolerance to temperature, pH, proteases, chemical reagents, UV radiation, and metal ions, with almost no loss of inhibitory activity after treatment. In addition, the very low hemolytic activity and cytotoxicity suggest that HA2-5 is biosafe. Notably, HA2-5 exhibits preferred antibacterial activity against gram-positive pathogens with an MIC of 16-32 μg/mL. In conclusion, this study shows that bacteriocin HA2-5 has the potential to be used as an alternative to antibiotics for acne treatment.
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Affiliation(s)
- Zheng Peng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Mengni He
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Xinyu Yang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Juan Zhang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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18
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Ji QY, Wang W, Yan H, Qu H, Liu Y, Qian Y, Gu R. The Effect of Different Organic Acids and Their Combination on the Cell Barrier and Biofilm of Escherichia coli. Foods 2023; 12:3011. [PMID: 37628010 PMCID: PMC10453431 DOI: 10.3390/foods12163011] [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: 07/20/2023] [Revised: 08/06/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Organic acids are natural antimicrobial compounds commonly used in the food industry. In this study, acetic, lactic, butyric, citric, and malic acid at minimum inhibitory concentrations and their combinations at optimal inhibition concentrations were used to treat E. coli, and the effects on the cell barrier and biofilm of E. coli were evaluated. Acetic acid showed the highest membrane-damaging effect, while citric acid and malic acid could specifically damage the cell wall of E. coli, leading to alkaline phosphatase leakage. The RT-qPCR results showed that organic acids upregulated the membrane-protein-related genes of E. coli, and the combination of organic acids had a wider range of effects than single organic acid treatment. Moreover, organic acids inhibited the formation of E. coli biofilm and cellular activity within the biofilm. This study showed that the combination of organic acids plays a synergistic inhibitory role mainly through multiple destructive effects on the cell barrier and exhibited synergistic anti-biofilm effects. The three-three combination of acetic, lactic acid, and a third organic acid (butyric, citric, or malic) can play a better synergistic antibacterial effect than the two-pair combination of acetic and lactic acid. These findings have implications for the usage, development, and optimization of organic acid combinations.
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Affiliation(s)
| | | | | | | | | | | | - Ruixia Gu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Q.-Y.J.); (W.W.); (H.Y.); (H.Q.); (Y.L.); (Y.Q.)
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19
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Ashrafi R, Bruneaux M, Sundberg LR, Hoikkala V, Karvonen A. Multispecies coinfections and presence of antibiotics shape resistance and fitness costs in a pathogenic bacterium. Mol Ecol 2023; 32:4447-4460. [PMID: 37303030 DOI: 10.1111/mec.17040] [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: 04/28/2022] [Accepted: 05/24/2023] [Indexed: 06/13/2023]
Abstract
Increasing antimicrobial resistance (AMR) poses a challenge for treatment of bacterial diseases. In real life, bacterial infections are typically embedded within complex multispecies communities and influenced by the environment, which can shape costs and benefits of AMR. However, knowledge of such interactions and their implications for AMR in vivo is limited. To address this knowledge gap, we investigated fitness-related traits of a pathogenic bacterium (Flavobacterium columnare) in its fish host, capturing the effects of bacterial antibiotic resistance, coinfections between bacterial strains and metazoan parasites (fluke Diplostomum pseudospathaceum) and antibiotic exposure. We quantified real-time replication and virulence of sensitive and resistant bacteria and demonstrate that both bacteria can benefit from coinfection in terms of persistence and replication, depending on the coinfecting partner and antibiotic presence. We also show that antibiotics can benefit resistant bacteria by increasing bacterial replication under coinfection with flukes. These results emphasize the importance of diverse, inter-kingdom coinfection interactions and antibiotic exposure in shaping costs and benefits of AMR, supporting their role as significant contributors to spread and long-term persistence of resistance.
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Affiliation(s)
- Roghaieh Ashrafi
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Matthieu Bruneaux
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Lotta-Riina Sundberg
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
- Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Ville Hoikkala
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
- Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Anssi Karvonen
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
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20
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García MD, Ruiz MJ, Medina LM, Vidal R, Padola NL, Etcheverria AI. Molecular and Genetic Characterization of Colicinogenic Escherichia coli Strains Active against Shiga Toxin-Producing Escherichia coli O157:H7. Foods 2023; 12:2676. [PMID: 37509768 PMCID: PMC10378606 DOI: 10.3390/foods12142676] [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: 05/30/2023] [Revised: 06/21/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
The objective of this work was to molecularly and genotypically characterize and test the inhibitory activity of six colicinogenic Escherichia coli strains (ColEc) and their partially purified colicins against STEC O157:H7 isolated from clinical human cases. Inhibition tests demonstrated the activity of these strains and their colicins against STEC O157:H7. By PCR it was possible to detect colicins Ia, E7, and B and microcins M, H47, C7, and J25. By genome sequencing of two selected ColEc strains, it was possible to identify additional colicins such as E1 and Ib. No genes coding for stx1 and stx2 were detected after analyzing the genome sequence. The inhibitory activity of ColEc against STEC O157:H7 used as an indicator showed that colicins are potent growth inhibitors of E. coli O157:H7, being a potential alternative to reduce the presence of pathogens of public health relevance.
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Affiliation(s)
- Mauro D García
- Laboratorio de Inmunoquímica y Biotecnología, Centro de Investigación Veterinaria de Tandil (CIVETAN), CONICET, CICPBA, Facultad de Ciencias Veterinarias, UNICEN-Campus Universitario, Tandil B7000, Argentina
| | - María J Ruiz
- Laboratorio de Inmunoquímica y Biotecnología, Centro de Investigación Veterinaria de Tandil (CIVETAN), CONICET, CICPBA, Facultad de Ciencias Veterinarias, UNICEN-Campus Universitario, Tandil B7000, Argentina
| | - Luis M Medina
- Food Science and Technology Department, Faculty of Veterinary Medicine, Universidad de Cordoba, 14071 Córdoba, Spain
| | - Roberto Vidal
- Instituto de Ciencias biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Nora L Padola
- Laboratorio de Inmunoquímica y Biotecnología, Centro de Investigación Veterinaria de Tandil (CIVETAN), CONICET, CICPBA, Facultad de Ciencias Veterinarias, UNICEN-Campus Universitario, Tandil B7000, Argentina
| | - Analía I Etcheverria
- Laboratorio de Inmunoquímica y Biotecnología, Centro de Investigación Veterinaria de Tandil (CIVETAN), CONICET, CICPBA, Facultad de Ciencias Veterinarias, UNICEN-Campus Universitario, Tandil B7000, Argentina
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21
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Rossi M, Galetto L, Bodino N, Beltramo J, Gamalero S, Pegoraro M, Bosco D, Marzachì C. Competition among Flavescence Dorée Phytoplasma Strains in the Experimental Insect Vector Euscelidius variegatus. INSECTS 2023; 14:575. [PMID: 37504582 PMCID: PMC10380400 DOI: 10.3390/insects14070575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023]
Abstract
Phytoplasmas are plant pathogenic wall-less bacteria transmitted in a persistent propagative manner by hemipteran insects, mainly belonging to the suborder Auchenorrhyncha (Fulgoromorpha and Cicadomorpha). Flavescence dorée (FD) is a quarantine disease of grapevine, causing great damage to European viticulture and associated with phytoplasmas belonging to 16SrV-C (FD-C) and -D (FD-D) subgroups. FD-C and FD-D strains share similar pathogenicity, but mixed infections are rare in nature. To investigate the competition among FDp strains, specimens of the laboratory vector Euscelidius variegatus (Hemiptera: Cicadellidae) were forced to acquire both phytoplasma haplotypes upon feeding on FD-C- and FD-D-infected plants or after the injection of both strains. The pathogen colonization of insect bodies and heads was monitored with multiplex qPCR, and the efficiencies of phytoplasma transmission were estimated. Single infection, irrespective of strain type, was more frequent than expected, indicating that competition among FD strains occurs. Hypotheses of competition for resources and/or host active sites or the direct antibiosis of one strain against the other are discussed, based on the genetic complexity of FDp populations and on the high genome variability of the FD-D strain. As FD management still mainly relies on insecticides against vectors, the characterization of FDp haplotypes and the description of their epidemiology also have practical implications.
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Affiliation(s)
- Marika Rossi
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
| | - Luciana Galetto
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
| | - Nicola Bodino
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari DISAFA, Università degli Studi di Torino, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Jessica Beltramo
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari DISAFA, Università degli Studi di Torino, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Silvia Gamalero
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
- Dipartimento di Scienze dell'Ambiente e della Vita, Università del Piemonte Orientale "Amedeo Avogadro", Viale Teresa Michel 11, 15121 Alessandria, Italy
| | - Mattia Pegoraro
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
- Metrologia dei Materiali Innovativi e Scienze della Vita, Istituto Nazionale di Ricerca Metrologica, INRiM, Strada delle Cacce 91, 10135 Torino, Italy
| | - Domenico Bosco
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari DISAFA, Università degli Studi di Torino, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Cristina Marzachì
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy
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Tenea GN. Metabiotics Signature through Genome Sequencing and In Vitro Inhibitory Assessment of a Novel Lactococcus lactis Strain UTNCys6-1 Isolated from Amazonian Camu-Camu Fruits. Int J Mol Sci 2023; 24:ijms24076127. [PMID: 37047101 PMCID: PMC10094308 DOI: 10.3390/ijms24076127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/12/2023] [Accepted: 03/18/2023] [Indexed: 03/29/2023] Open
Abstract
Metabiotics are the structural components of probiotic bacteria, functional metabolites, and/or signaling molecules with numerous beneficial properties. A novel Lactococcus lactis strain, UTNCys6-1, was isolated from wild Amazonian camu-camu fruits (Myrciaria dubia), and various functional metabolites with antibacterial capacity were found. The genome size is 2,226,248 base pairs, and it contains 2248 genes, 2191 protein-coding genes (CDSs), 50 tRNAs, 6 rRNAs, 1 16S rRNA, 1 23S rRNA, and 1 tmRNA. The average GC content is 34.88%. In total, 2148 proteins have been mapped to the EggNOG database. The specific annotation consisted of four incomplete prophage regions, one CRISPR-Cas array, six genomic islands (GIs), four insertion sequences (ISs), and four regions of interest (AOI regions) spanning three classes of bacteriocins (enterolysin_A, nisin_Z, and sactipeptides). Based on pangenome analysis, there were 6932 gene clusters, of which 751 (core genes) were commonly observed within the 11 lactococcal strains. Among them, 3883 were sample-specific genes (cloud genes) and 2298 were shell genes, indicating high genetic diversity. A sucrose transporter of the SemiSWEET family (PTS system: phosphoenolpyruvate-dependent transport system) was detected in the genome of UTNCys6-1 but not the other 11 lactococcal strains. In addition, the metabolic profile, antimicrobial susceptibility, and inhibitory activity of both protein–peptide extract (PPE) and exopolysaccharides (EPSs) against several foodborne pathogens were assessed in vitro. Furthermore, UTNCys6-1 was predicted to be a non-human pathogen that was unable to tolerate all tested antibiotics except gentamicin; metabolized several substrates; and lacks virulence factors (VFs), genes related to the production of biogenic amines, and acquired antibiotic resistance genes (ARGs). Overall, this study highlighted the potential of this strain for producing bioactive metabolites (PPE and EPSs) for agri-food and pharmaceutical industry use.
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23
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Antibiotic Resistance and Food Safety: Perspectives on New Technologies and Molecules for Microbial Control in the Food Industry. Antibiotics (Basel) 2023; 12:antibiotics12030550. [PMID: 36978417 PMCID: PMC10044663 DOI: 10.3390/antibiotics12030550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 03/12/2023] Open
Abstract
Antibiotic resistance (ABR) has direct and indirect repercussions on public health and threatens to decrease the therapeutic effect of antibiotic treatments and lead to more infection-related deaths. There are several mechanisms by which ABR can be transferred from one microorganism to another. The risk of transfer is often related to environmental factors. The food supply chain offers conditions where ABR gene transfer can occur by multiple pathways, which generates concerns regarding food safety. This work reviews mechanisms involved in ABR gene transfer, potential transmission routes in the food supply chain, the prevalence of antibiotic residues in food and ABR organisms in processing lines and final products, and implications for public health. Finally, the paper will elaborate on the application of antimicrobial peptides as new alternatives to antibiotics that might countermeasure ABR and is compatible with current food trends.
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24
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Karthik Y, Kalyani MI. Occurrence of Streptomyces tauricus in mangrove soil of Mangalore region in Dakshina Kannada as a source for antimicrobial peptide. J Basic Microbiol 2023; 63:389-403. [PMID: 35876342 DOI: 10.1002/jobm.202200108] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 06/09/2022] [Accepted: 07/10/2022] [Indexed: 11/09/2022]
Abstract
Microbial resistance and deprivation of the effective drugs have become the foremost problem that propels to seek out for advanced approach. This concept initiated a need to search for more effective antimicrobial compounds from reliable sources. The Streptomyces is grouped under phylum Actinobacteria and are considered prolific producers of antibiotics, around 70% of presently available antibiotics are contributed by Streptomyces alone. In this study, Mangroves of the Mangalore Coast offered a unique source for screening Actinomyces group of microorganisms. We investigated on the four soil samples collected from Mangrove swamps of Mangalore, Karnataka, India. Based on their culture traits, the 18 distinct Actinomyces isolates were analyzed through a series of morphological and biochemical tests on starch casein nitrate (SCN) media. Culture biomasses were subjected for intracellular protein extraction through acetone precipitation method; the extracted proteins from each Actinomyces isolate were examined for antimicrobial activity against test organisms. The isolate ANTB-YKMU4 showed potential antimicrobial activity against significant number of test organisms; Bacillus cereus, Proteus vulgaris, Staphylococcus aureus, Salmonella typhimurium, and Pseudomonas aeruginosa. The isolate ANTB-YKMU4 through 16 s rRNA gene sequence analysis was identified as Streptomyces tauricus strain with GenBank accession no. MW785875.1. The S. tauricus further cultivated for efficient biomass growth on SCN media for subsequent protein extraction and purification by a series of Electrophoretic and chromatographic techniques. Thus, by intracellular extractions from S. tauricus resulted in the identification of peptide with a molecular weight of 266 Da that was characterized by LC-MS.
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Affiliation(s)
- Yalpi Karthik
- Department of Studies and Research in Microbiology, Mangalore University, Jnana Kaveri Campus, Chikka Aluvara, Kodagu, Karnataka, India
| | - Manjula Ishwara Kalyani
- Department of Studies and Research in Microbiology, Mangalore University, Jnana Kaveri Campus, Chikka Aluvara, Kodagu, Karnataka, India
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25
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Cebrián R, Martínez-García M, Fernández M, García F, Martínez-Bueno M, Valdivia E, Kuipers OP, Montalbán-López M, Maqueda M. Advances in the preclinical characterization of the antimicrobial peptide AS-48. Front Microbiol 2023; 14:1110360. [PMID: 36819031 PMCID: PMC9936517 DOI: 10.3389/fmicb.2023.1110360] [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: 11/28/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023] Open
Abstract
Antimicrobial resistance is a natural and inevitable phenomenon that constitutes a severe threat to global public health and economy. Innovative products, active against new targets and with no cross- or co-resistance with existing antibiotic classes, novel mechanisms of action, or multiple therapeutic targets are urgently required. For these reasons, antimicrobial peptides such as bacteriocins constitute a promising class of new antimicrobial drugs under investigation for clinical development. Here, we review the potential therapeutic use of AS-48, a head-to-tail cyclized cationic bacteriocin produced by Enterococcus faecalis. In the last few years, its potential against a wide range of human pathogens, including relevant bacterial pathogens and trypanosomatids, has been reported using in vitro tests and the mechanism of action has been investigated. AS-48 can create pores in the membrane of bacterial cells without the mediation of any specific receptor. However, this mechanism of action is different when susceptible parasites are studied and involves intracellular targets. Due to these novel mechanisms of action, AS-48 remains active against the antibiotic resistant strains tested. Remarkably, the effect of AS-48 against eukaryotic cell lines and in several animal models show little effect at the doses needed to inhibit susceptible species. The characteristics of this molecule such as low toxicity, microbicide activity, blood stability and activity, high stability at a wide range of temperatures or pH, resistance to proteases, and the receptor-independent effect make AS-48 unique to fight a broad range of microbial infections, including bacteria and some important parasites.
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Affiliation(s)
- Rubén Cebrián
- Department of Clinical Microbiology, Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospital San Cecilio, Granada, Spain,*Correspondence: Rubén Cebrián, ✉
| | | | | | - Federico García
- Department of Clinical Microbiology, Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospital San Cecilio, Granada, Spain,Biomedicinal Research Network Center, Infectious Diseases (CIBERINFEC), Madrid, Spain
| | | | - Eva Valdivia
- Department of Microbiology, University of Granada, Granada, Spain
| | - Oscar P. Kuipers
- Department of Molecular Genetics, University of Groningen, Groningen, Netherlands
| | - Manuel Montalbán-López
- Department of Microbiology, University of Granada, Granada, Spain,Manuel Montalbán-López, ✉
| | - Mercedes Maqueda
- Department of Microbiology, University of Granada, Granada, Spain
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Karthik Y, Ishwara Kalyani M, Krishnappa S, Devappa R, Anjali Goud C, Ramakrishna K, Wani MA, Alkafafy M, Hussen Abduljabbar M, Alswat AS, Sayed SM, Mushtaq M. Antiproliferative activity of antimicrobial peptides and bioactive compounds from the mangrove Glutamicibacter mysorens. Front Microbiol 2023; 14:1096826. [PMID: 36876075 PMCID: PMC9982118 DOI: 10.3389/fmicb.2023.1096826] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 01/26/2023] [Indexed: 02/19/2023] Open
Abstract
The Glutamicibacter group of microbes is known for antibiotic and enzyme production. Antibiotics and enzymes produced by them are important in the control, protection, and treatment of chronic human diseases. In this study, the Glutamicibacter mysorens (G. mysorens) strain MW647910.1 was isolated from mangrove soil in the Mangalore region of India. After optimization of growth conditions for G. mysorens on starch casein agar media, the micromorphology of G. mysorens was found to be spirally coiled spore chain, each spore visualized as an elongated cylindrical hairy appearance with curved edges visualized through Field Emission Scanning Electron Microscopy (FESEM) analysis. The culture phenotype with filamentous mycelia, brown pigmentation, and ash-colored spore production was observed. The intracellular extract of G. mysorens characterized through GCMS analysis detected bioactive compounds reported for pharmacological applications. The majority of bioactive compounds identified in intracellular extract when compared to the NIST library revealed molecular weight ranging below 1kgmole-1. The Sephadex G-10 could result in 10.66 fold purification and eluted peak protein fraction showed significant anticancer activity on the prostate cancer cell line. Liquid Chromatography-Mass Spectrometry (LC-MS) analysis revealed Kinetin-9-ribose and Embinin with a molecular weight below 1 kDa. This study showed small molecular weight bioactive compounds produced from microbial origin possess dual roles, acting as antimicrobial peptides (AMPs) and anticancer peptides (ACPs). Hence, the bioactive compounds produced from microbial origin are a promising source of future therapeutics.
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Affiliation(s)
- Yalpi Karthik
- Department of Studies and Research in Microbiology, Mangalore University, Mangalore, Karnataka, India
| | - Manjula Ishwara Kalyani
- Department of Studies and Research in Microbiology, Mangalore University, Mangalore, Karnataka, India
| | - Srinivasa Krishnappa
- Department of Studies and Research in Biochemistry, Mangalore University, Mangalore, Karnataka, India
| | - Ramakrishna Devappa
- Dr. C.D Sagar Centre for Life Sciences, Biotechnology Department, Dayananda Sagar College of Engineering, Dayananda Sagar Institutions, Bengaluru, India
| | - Chengeshpur Anjali Goud
- Department of Plant Biotechnology, School of Agricultural Sciences, Malla Reddy University, Hyderabad, India
| | - Krishnaveni Ramakrishna
- Department of Studies and Research in Microbiology, Vijayanagara Sri Krishnadevaraya University, Ballari, Karnataka, India
| | - Muneeb Ahmad Wani
- Division of Floriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu and Kashmir, India
| | - Mohamed Alkafafy
- Department of Cytology and Histology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Maram Hussen Abduljabbar
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Amal S Alswat
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | - Samy M Sayed
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Muntazir Mushtaq
- ICAR-National Bureau of Plant Genetic Resources, Division of Germplasm Evaluation, New Delhi, India.,MS Swaminathan School of Agriculture, Shoolini University of Biotechnology and Management, Bajhol, Himachal Pradesh, India
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27
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Mohd Rasid NH, Abdul Halid N, Song AAL, Sabri S, Saari N, Hasan H. Effects of Individual and Combined Fermentation Factors on Antimicrobial Activity of Nisin by Lactococcus lactis ATCC 11454. Mol Biotechnol 2022; 65:861-870. [DOI: 10.1007/s12033-022-00584-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/12/2022] [Indexed: 11/24/2022]
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28
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Li J, Jin J, Li S, Zhong Y, Jin Y, Zhang X, Xia B, Zhu Y, Guo R, Sun X, Guo J, Hu F, Xiao W, Huang F, Ye H, Li R, Zhou Y, Xiang X, Yao H, Yan Q, Su L, Wu L, Luo T, Liu Y, Guo X, Qin J, Qi H, He J, Wang J, Li Z. Tonsillar Microbiome-Derived Lantibiotics Induce Structural Changes of IL-6 and IL-21 Receptors and Modulate Host Immunity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202706. [PMID: 36031409 PMCID: PMC9596850 DOI: 10.1002/advs.202202706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Emerging evidence emphasizes the functional impacts of host microbiome on the etiopathogenesis of autoimmune diseases, including rheumatoid arthritis (RA). However, there are limited mechanistic insights into the contribution of microbial biomolecules especially microbial peptides toward modulating immune homeostasis. Here, by mining the metagenomics data of tonsillar microbiome, a deficiency of the encoding genes of lantibiotic peptides salivaricins in RA patients is identified, which shows strong correlation with circulating immune cells. Evidence is provided that the salivaricins exert immunomodulatory effects in inhibiting T follicular helper (Tfh) cell differentiation and interleukin-21 (IL-21) production. Mechanically, salivaricins directly bind to and induce conformational changes of IL-6 and IL-21 receptors, thereby inhibiting the bindings of IL-6 and IL-21 to their receptors and suppressing the downstream signaling pathway. Finally, salivaricin administration exerts both prophylactic and therapeutic effects against experimental arthritis in a murine model of RA. Together, these results provide a mechanism link of microbial peptides-mediated immunomodulation.
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29
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Angelescu IR, Grosu-Tudor SS, Cojoc LR, Maria GM, Chirițoiu GN, Munteanu CVA, Zamfir M. Isolation, characterization, and mode of action of a class III bacteriocin produced by Lactobacillus helveticus 34.9. World J Microbiol Biotechnol 2022; 38:220. [PMID: 36083397 DOI: 10.1007/s11274-022-03408-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022]
Abstract
Traditionally fermented foods and beverages are still produced and consumed at a large scale in Romania. They are rich sources for novel lactic acid bacteria with functional properties and with potential application in food industry or health. Lactobacillus helveticus 34.9, isolated from a home-made fermented milk is able to inhibit the growth of other bacteria, such as other lactic acid bacteria, but also strains of Bacillus subtilis, Bacillus cereus, Staphylococcus aureus, and Halobacillus hunanensis, a halobacterium isolated from the degraded wall of a Romanian monastery. L. helveticus 34.9 produces a large bacteriocin (35 KDa), active in a wide pH range, but inactivated by heat and proteinase K treatment. It shares about 20% sequence coverage with helveticin J, as determined by LC-MS analysis. Bacteriocin production was enhanced under stress conditions, especially when combined stresses were applied. Its mode of action and degree of inhibition depended on the concentration and on the indicator strain that was used; L. delbrueckii subsp. bulgaricus LMG 6901T cells from a suspension were killed, but the viability of H. hunanensis 5Hum cells was only reduced to 60%, within 8 h. However, the bacteriocin was able to prevent the bacterial growth of both indicator strains when added to the cultivation medium prior inoculation. Scanning electron microscopy images revealed morphological changes induced by the bacteriocin treatment in both sensitive strains, but more severe in the case of L. delbrueckii subsp. bulgaricus. Due to the broad antibacterial spectrum and its production under various stress conditions, the bacteriocin or the producing strain may find application in health, food and non-food related fields, including in the restoration of historical buildings.
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Affiliation(s)
| | | | - Lucia-Roxana Cojoc
- Institute of Biology Bucharest of the Romanian Academy, Bucharest, Romania
| | | | | | | | - Medana Zamfir
- Institute of Biology Bucharest of the Romanian Academy, Bucharest, Romania.
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Zhao G, Kempen PJ, Zheng T, Jakobsen TH, Zhao S, Gu L, Solem C, Ruhdal Jensen PP. Synergistic bactericidal effect of nisin and phytic acid against Escherichia coli O157:H7. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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31
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Xiang YZ, Wu G, Zhang YP, Yang LY, Zhang YM, Zhao ZS, Deng XY, Zhang QL. Inhibitory effect of a new bacteriocin RSQ04 purified from Lactococcus lactis on Listeria monocytogenes and its application on model food systems. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tan J, Gong J, Liu F, Li B, Li Z, You J, He J, Wu S. Evaluation of an Antibiotic Cocktail for Fecal Microbiota Transplantation in Mouse. Front Nutr 2022; 9:918098. [PMID: 35719145 PMCID: PMC9204140 DOI: 10.3389/fnut.2022.918098] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/04/2022] [Indexed: 12/02/2022] Open
Abstract
Objective This study aimed to evaluate the effect of an antibiotic cocktail on gut microbiota and provide a reference for establishing an available mouse model for fecal microbiota transplantation (FMT) of specific microbes. Design C57BL/6J mice (n = 24) had free access to an antibiotic cocktail containing vancomycin (0.5 g/L), ampicillin (1 g/L), neomycin (1 g/L), and metronidazole (1 g/L) in drinking water for 3 weeks. Fecal microbiota was characterized by 16S rDNA gene sequencing at the beginning, 1st week, and 3rd week, respectively. The mice were then treated with fecal microbiota from normal mice for 1 week to verify the efficiency of FMT. Results The diversity of microbiota including chao1, observed species, phylogenetic diversity (PD) whole tree, and Shannon index were decreased significantly (P < 0.05) after being treated with the antibiotic cocktail for 1 or 3 weeks. The relative abundance of Bacteroidetes, Actinobacteria, and Verrucomicrobia was decreased by 99.94, 92.09, and 100%, respectively, while Firmicutes dominated the microbiota at the phylum level after 3 weeks of treatment. Meanwhile, Lactococcus, a genus belonging to the phylum of Firmicutes dominated the microbiota at the genus level with a relative abundance of 80.63%. Further FMT experiment indicated that the fecal microbiota from the receptor mice had a similar composition to the donor mice after 1 week. Conclusion The antibiotic cocktail containing vancomycin, ampicillin, neomycin, and metronidazole eliminates microbes belonging to Bacteroidetes, Actinobacteria, and Verrucomicrobia, which can be recovered by FMT in mice.
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İncili GK, Karatepe P, Akgöl M, Güngören A, Koluman A, İlhak Oİ, Kanmaz H, Kaya B, Hayaloğlu AA. Characterization of lactic acid bacteria postbiotics, evaluation in-vitro antibacterial effect, microbial and chemical quality on chicken drumsticks. Food Microbiol 2022; 104:104001. [DOI: 10.1016/j.fm.2022.104001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 11/26/2021] [Accepted: 02/01/2022] [Indexed: 12/20/2022]
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Wang G, Guo Z, Zhang X, Wu H, Bai X, Zhang H, Hu R, Han S, Pang Y, Gao Z, Yan L, Huang C, Zhang L, Pan C, Liu X. Heterologous expression of pediocin/papA in Bacillus subtilis. Microb Cell Fact 2022; 21:104. [PMID: 35643507 PMCID: PMC9148482 DOI: 10.1186/s12934-022-01829-x] [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: 12/07/2021] [Accepted: 05/16/2022] [Indexed: 11/16/2022] Open
Abstract
Listeria monocytogenes is a food-borne pathogen. Pediocin is a group IIα bacteriocin with anti-listeria activity that is naturally produced by Pediococcus acidilactic and Lactobacillus plantarum. The pedA/papA gene encodes pediocin/plantaricin. In native hosts, the expression and secretion of active PedA/PapA protein rely on the accessory protein PedC/PapC and ABC transporter PedD/PapD on the same operon. The excretion machines were also necessary for pediocin protein expression in heterologous hosts of E. coli, Lactobacillus lactis, and Corynebacterium glutamicum. In this study, two vectors carrying the codon sequence of the mature PapA peptide were constructed, one with and one without a His tag. Both fragments were inserted into the plasmid pHT43 and transformed into Bacillus subtilis WB800N. The strains were induced with IPTG to secrete the fused proteins PA1 and PA2. Supernatants from both recombinant strains can inhibit Listeria monocytogenes ATCC54003 directly. The fused protein possesses inhibition activity as a whole dispense with removal of the leading peptide. This is the first report of active pediocin/PapA expression without the assistance of PedCD/PapCD in heterogeneous hosts. In addition, the PA1 protein can be purified by nickel-nitrilotriacetic acid (Ni-NTA) metal affinity chromatography.
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Savio C, Mugo-Kamiri L, Upfold JK. Bugs in Bugs: The Role of Probiotics and Prebiotics in Maintenance of Health in Mass-Reared Insects. INSECTS 2022; 13:insects13040376. [PMID: 35447818 PMCID: PMC9025317 DOI: 10.3390/insects13040376] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 02/07/2023]
Abstract
Simple Summary The importance of insect farming is increasing in the livestock market by evolving into a form of intensive production that is often characterized by a high density of individuals kept in closed environments. These conditions can cause a higher risk of occurrence of insect diseases and the lowering of reproductive and growth performances. The role of microbiota composition in insect behaviour and health maintenance could be further studied for selecting microorganisms that act as probiotics for the main mass reared insect species. These probiotics could enhance host performances and reduce the incidence of risks related to insect diseases. Abstract Interactions between insects and their microbiota affect insect behaviour and evolution. When specific microorganisms are provided as a dietary supplement, insect reproduction, food conversion and growth are enhanced and health is improved in cases of nutritional deficiency or pathogen infection. The purpose of this review is to provide an overview of insect–microbiota interactions, to review the role of probiotics, their general use in insects reared for food and feed, and their interactions with the host microbiota. We review how bacterial strains have been selected for insect species reared for food and feed and discuss methods used to isolate and measure the effectiveness of a probiotic. We outline future perspectives on probiotic applications in mass-reared insects.
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Affiliation(s)
- Carlotta Savio
- University of Paris Saclay, INRAE, Micalis, GME, 78350 Jouy en Josas, France;
- Laboratory of Entomology, Wageningen University, 6708 PB Wageningen, The Netherlands
- Correspondence:
| | - Loretta Mugo-Kamiri
- Institut de Recherche sur la Biologie de l’Insecte, UMR 7261, CNRS-University of Tours, 37200 Tours, France;
- Centre for Ecology and Conservation, Penryn Campus, College of Life and Environmental Science, University of Exeter, Cornwall TR10 9FE, UK
| | - Jennifer K. Upfold
- University of Paris Saclay, INRAE, Micalis, GME, 78350 Jouy en Josas, France;
- Department of Plant and Environmental Science, University of Copenhagen, Thorvaildsensvej 40, 1871 Frederiksberg, Denmark
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Hadj Saadoun J, Sogari G, Bernini V, Camorali C, Rossi F, Neviani E, Lazzi C. A critical review of intrinsic and extrinsic antimicrobial properties of insects. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Verma DK, Thakur M, Singh S, Tripathy S, Gupta AK, Baranwal D, Patel AR, Shah N, Utama GL, Niamah AK, Chávez-González ML, Gallegos CF, Aguilar CN, Srivastav PP. Bacteriocins as antimicrobial and preservative agents in food: Biosynthesis, separation and application. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101594] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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38
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Du H, Chi H, Yao H, Lu Z, Bie X, Zhang C, Zhao H, Lu F, Chen M. The antibacterial activity of plantaricin GZ1–27 against MRSA and its bio-preservative effect on chilled pork in combination with chitosan. Int J Food Microbiol 2022; 365:109539. [DOI: 10.1016/j.ijfoodmicro.2022.109539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 11/27/2021] [Accepted: 01/09/2022] [Indexed: 01/26/2023]
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Cao H, Xu D, Zhang T, Ren Q, Xiang L, Ning C, Zhang Y, Gao R. Comprehensive and functional analyses reveal the genomic diversity and potential toxicity of Microcystis. HARMFUL ALGAE 2022; 113:102186. [PMID: 35287927 DOI: 10.1016/j.hal.2022.102186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Microcystis is a cyanobacteria that is widely distributed across the world. It has attracted great attention because it produces the hepatotoxin microcystin (MC) that can inhibit eukaryotic protein phosphatases and pose a great risk to animal and human health. Due to the high diversity of morphospecies and genomes, it is still difficult to classify Microcystis species. In this study, we investigated the pangenome of 23 Microcystis strains to detect the genetic diversity and evolutionary dynamics. Microcystis revealed an open pangenome containing 22,009 gene families and exhibited different functional constraints. The core-genome phylogenetic analysis accurately differentiated the toxic and nontoxic strains and could be used as a taxonomic standard at the genetic level. We also investigated the functions of HGT events, of which were mostly conferred from cyanobacteria and closely related species. In order to detect the potential toxicity of Microcystis, we searched and characterized MC biosynthetic gene clusters and other secondary metabolite gene clusters. Our work provides insights into the genetic diversity, evolutionary dynamics, and potential toxicity of Microcystis, which could benefit the species classification and development of new methods for drinking water quality control and management of bloom formation in the future.
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Affiliation(s)
- Hengchun Cao
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Da Xu
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Tiantian Zhang
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Qiufang Ren
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Li Xiang
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Chunhui Ning
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China
| | - Yusen Zhang
- School of Mathematics and Statistics, Shandong University, Weihai, 264209, Shandong, China.
| | - Rui Gao
- School of Control Science and Engineering, Shandong University, Jinan 250061, Shandong, China.
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Babich O, Milentyeva I, Dyshlyuk L, Ostapova E, Altshuler O. Structure and properties of antimicrobial peptides produced by antagonist microorganisms isolated from Siberian natural objects. FOODS AND RAW MATERIALS 2022. [DOI: 10.21603/2308-4057-2022-1-27-39] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction. Public healthcare urgently needs new pharmaceuticals – alternative to traditional antibiotics – that pathogens develop no resistance to. Of special interest in this regard are antimicrobial, ribosomally synthesized bacterial peptides or bacteriocins. In this work, we aimed to study the structure and properties of antimicrobial peptides produced by antagonist microorganisms isolated from the natural objects of the Siberian region.
Study objects and methods. The study objects were bacteria isolated from the natural sources of Kuzbass. After culturing bacteria, total protein was precipitated from the culture fluid and separated into fractions by gel permeation HPLC. Their amino acid sequences were determined by MALDI-TOF mass spectrometry. The antibacterial (against Bacillus pumilus and Escherichia coli) and fungicidal (against Aspergillus flavus and Aspergillus niger) properties of the peptides were studied by the disk diffusion method.
Results and discussion. Seven peptides with different amino acid sequences were isolated from the culture fluid of bacteria, five of which had no analogues in the PepBank and Uniprot data banks. The peptide with an amino acid sequence of VMCLARKCSQGLIVKAPLM (2061.66 Da) was homologous to the cysteine membrane protein Giardia lamblia P15, and the peptide with an amino acid sequence of AVPSMKLCIQWSPVRASPCVMLGI (2587.21 Da) showed a homology with the Planctomycetes bacterium I41 peptides. We found antibacterial (against gram-positive and gram-negative bacteria) and fungicidal (against Aspergillus) properties in the peptide fractions.
Conclusion. Antimicrobial peptides produced by bacteria isolated from the natural objects of the Siberian region can be used to create pharmaceuticals as an alternative to traditional antibiotics to treat infectious diseases.
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Heterologous overexpression and preliminary antimicrobial activity test of salmocin M, a novel colicin M-like bacteriocin against Salmonella sp. Arch Microbiol 2022; 204:154. [PMID: 35088215 PMCID: PMC8794732 DOI: 10.1007/s00203-021-02659-y] [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: 11/08/2019] [Revised: 09/17/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022]
Abstract
Currently, it is extremely important to identify and describe new alternative compounds with potential antimicrobial properties. Since various natural biological systems are capable of producing active compounds with such properties, many of them have been the subject of intensive study. The aim of this work was to heterologously overexpress, purify and preliminarily investigate the antimicrobial activity of a novel bacteriocin found in Salmonella species. Overexpressed protein shows an amino acid structure homologous to the well-known colicin M and was never expressed previously in the E. coli platform. Purified salmocin M showed an inhibition spectrum against Salmonella and E. coli strains. To determine its potential as an antimicrobial agent for use in medicine or the food industry, preliminary antimicrobial tests against pathogenic bacteria were carried out. Our research demonstrates that bacteriocin can be produced efficiently in bacterial expression systems, which are one of the cheapest and the most popular platforms for recombinant protein production. Moreover, preliminary results of microbiological tests showed its activity against most of the bacterial strains in a dose-dependent manner.
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Weixler D, Berghoff M, Ovchinnikov KV, Reich S, Goldbeck O, Seibold GM, Wittmann C, Bar NS, Eikmanns BJ, Diep DB, Riedel CU. Recombinant production of the lantibiotic nisin using Corynebacterium glutamicum in a two-step process. Microb Cell Fact 2022; 21:11. [PMID: 35033086 PMCID: PMC8760817 DOI: 10.1186/s12934-022-01739-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The bacteriocin nisin is naturally produced by Lactococcus lactis as an inactive prepeptide that is modified posttranslationally resulting in five (methyl-)lanthionine rings characteristic for class Ia bacteriocins. Export and proteolytic cleavage of the leader peptide results in release of active nisin. By targeting the universal peptidoglycan precursor lipid II, nisin has a broad target spectrum including important human pathogens such as Listeria monocytogenes and methicillin-resistant Staphylococcus aureus strains. Industrial nisin production is currently performed using natural producer strains resulting in rather low product purity and limiting its application to preservation of dairy food products. RESULTS We established heterologous nisin production using the biotechnological workhorse organism Corynebacterium glutamicum in a two-step process. We demonstrate successful biosynthesis and export of fully modified prenisin and its activation to mature nisin by a purified, soluble variant of the nisin protease NisP (sNisP) produced in Escherichia coli. Active nisin was detected by a L. lactis sensor strain with strictly nisin-dependent expression of the fluorescent protein mCherry. Following activation by sNisP, supernatants of the recombinant C. glutamicum producer strain cultivated in standard batch fermentations contained at least 1.25 mg/l active nisin. CONCLUSIONS We demonstrate successful implementation of a two-step process for recombinant production of active nisin with C. glutamicum. This extends the spectrum of bioactive compounds that may be produced using C. glutamicum to a bacteriocin harboring complex posttranslational modifications. Our results provide a basis for further studies to optimize product yields, transfer production to sustainable substrates and purification of pharmaceutical grade nisin.
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Affiliation(s)
- Dominik Weixler
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Max Berghoff
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Kirill V Ovchinnikov
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Sebastian Reich
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Oliver Goldbeck
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Gerd M Seibold
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.,Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Christoph Wittmann
- Institute of Systems Biotechnology, Saarland University, Saarbrücken, Germany
| | - Nadav S Bar
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Bernhard J Eikmanns
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Dzung B Diep
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Christian U Riedel
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
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Isolation and partial characterization of a novel bacteriocin from Pseudomonas azotoformans with antimicrobial activity against Pasterella multocida. Arch Microbiol 2022; 204:112. [PMID: 34982208 DOI: 10.1007/s00203-021-02639-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/29/2022]
Abstract
In this study, a bacteriocin PA996 isolated from Pseudomonas azotoformans (P. azotoformans) was purified to homogeneity by ammonium sulphate precipitation and SP-Sepharose column chromatography. P. azotoformans began to grow at 6 h, reached exponential phase at 12-18 h. Bacteriocin PA996 was produced at 18 h and reached a maximum level of 2400 AU/mL. The molecular mass of purified bacteriocin PA996 was estimated by SDS-PAGE and its molecular mass was approximately 50 kDa. By screening in vitro, the bacteriocin PA996 showed an antimicrobial activity against Pasteurella multocida (P. multocida). The bacteriocin PA996 showed antibacterial activity in the range of pH2-10 and it was heat labile. The inhibitory activities were diminished after treatment with proteinase K, trypsin and papain, respectively, while catalase treatment was ineffective. The minimal inhibitory concentration (MIC) and bactericidal kinetics curves showed that the bacteriocin PA996 had a good inhibitory ability against P. multocida. Our data indicate that bacteriocin PA996 could inhibit the growth of P. maltocida and it may have the potential to apply as an alternative therapeutic drug.
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Shan C, Li M, Liu Z, Xu R, Qiao F, Du ZY, Zhang ML. Pediococcus pentosaceus Enhances Host Resistance Against Pathogen by Increasing IL-1β Production: Understanding Probiotic Effectiveness and Administration Duration. Front Immunol 2021; 12:766401. [PMID: 34899717 PMCID: PMC8662542 DOI: 10.3389/fimmu.2021.766401] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/04/2021] [Indexed: 12/13/2022] Open
Abstract
Probiotic administration is a potential strategy against enteric pathogen infection in either clinical treatment or animal nutrition industry, but the administration duration of probiotics varied and the underlying mechanisms remain unclear. A strain (YC) affiliated to Pediococcus pentosaceus, a commonly used probiotic, was isolated from fish gut and the potential role of YC against Aeromonas hydrophila was detected in zebrafish. We found that 3- or 4-week YC administration (YC3W or YC4W) increased the resistance against A. hydrophila while 1- or 2-week treatment (YC1W or YC2W) did not. To determine the possible reason, intestinal microbiota analysis and RNAseq were conducted. The results showed that compared with CON and YC1W, YC4W significantly increased the abundance of short-chain fatty acids (SCFAs) producing bacteria and elevated the gene expression of nlrp3. Higher butyrate content and enhanced expression of IL1β were subsequently found in YC4W. To identify the causal relationship between butyrate and the higher pathogen resistance, different concentrations of sodium butyrate (SB) were supplemented. The results suggested that 10 mmol/kg SB addition mirrored the protective effect of YC4W by increasing the production of IL-1β. Furthermore, the increased IL-1β raised the percentage of intestinal neutrophils, which endued the zebrafish with A. hydrophila resistance. In vivo knockdown of intestinal il1b eliminated the anti-infection effect. Collectively, our data suggested that the molecular mechanism of probiotics determined the administration duration, which is vital for the efficiency of probiotics. Promoting host inflammation by probiotic pretreatment is one potential way for probiotics to provide their protective effects against pathogens.
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Affiliation(s)
- Chengjie Shan
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
| | - Miao Li
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhu Liu
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China.,School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rong Xu
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
| | - Fang Qiao
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhen-Yu Du
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
| | - Mei-Ling Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, Shanghai, China
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Next-generation microbial drugs developed from microbiome's natural products. ADVANCES IN GENETICS 2021; 108:341-382. [PMID: 34844715 DOI: 10.1016/bs.adgen.2021.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Scientists working in natural products chemistry have been enticed by the current advancements being made in the discovery of novel "magic bullets" from microbes homed to all conceivable environments. Even though researchers continue to face challenges funneling the novel bioactive compounds in the global therapeutic industries, it seems most likely that the discovery of some "hit molecules" with significant biomedical applications is not that far. We applaud novel natural products for their ability to combat the spread of superbugs and aid in the prevention of currently observed antibiotic resistance. This in-depth investigation covers a wide range of microbiomes with a proclivity for synthesizing novel compounds to combat the spread of superbugs. Furthermore, we use this opportunity to explore various groups of secondary metabolites and their biosynthetic pathways in various microbiota found in mammals, insects, and humans. This systematic study, when taken as a whole, offers detail understanding on the biomedical fate of various groups of compounds originated from diverse microbiomes. For gathering all information that has been uncovered and released so far, we have also presented the huge diversity of microbes that are associated with humans and their metabolic products. To conclude, this concrete review suggests novel ideas that will prove immensely helpful in reducing the danger posed by superbugs while also improving the efficacy of antibiotics.
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Wang P, Wang T, Ismael M, Wang X, Yi Y, Lü X. Development of an electroporation method and expression patterns of bacteriocin-encoding genes in Companilactobacillus crustorum MN047. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Abitayeva GK, Urazova MS, Abilkhadirov AS, Sarmurzina ZS, Shaikhin SM. Characterization of a new bacteriocin-like inhibitory peptide produced by Lactobacillus sakei B-RKM 0559. Biotechnol Lett 2021; 43:2243-2257. [PMID: 34652635 DOI: 10.1007/s10529-021-03193-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
The biopreservation strategy allows extending the shelf life and food safety through the use of indigenous or controlled microbiota and their antimicrobial compounds. The aim of this work was to characterize an inhibitory substance with bacteriocin-like activity (Sak-59) produced by the potentially probiotic L. sakei strain from artisanal traditional Kazakh horse meat product Kazy. The maximum production of Sak-59 occurred at the stationary phase of the L. sakei growth. Sak-59 showed inhibitory activity against gram-positive meat spoilage bacteria strains of Listeria monocytogenes, Staphylococcus aureus, and pathogenic gram-negative bacteria strains of Serratia marcescens and Escherichia coli, but not against the tested Lactobacilli strains. Sak-59 activity, as measured by diffusion assay in agar wells, was completely suppressed after treatment with proteolytic enzymes and remained stable after treatment with α-amylase and lipase, indicating that Sak-59 is a peptide and most likely not glycosylated or lipidated. It was concluded that Sak-59 is a potential new bacteriocin with a characteristic activity spectrum, which can be useful in the food and feed industries.
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Affiliation(s)
- Gulyaim K Abitayeva
- Laboratory of Genetics and Biochemistry of Microorganisms, Republican Collection of Microorganisms of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, 13/1 Valikhanov Str., 010000, Nur-Sultan, Republic of Kazakhstan
| | - Maira S Urazova
- Laboratory of Biotechnology, Republican Collection of Microorganisms of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, 13/1 Valikhanov Str., Nur-Sultan, 010000, Republic of Kazakhstan
| | - Arman S Abilkhadirov
- Laboratory of Genetics and Biochemistry of Microorganisms, Republican Collection of Microorganisms of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, 13/1 Valikhanov Str., 010000, Nur-Sultan, Republic of Kazakhstan
| | - Zinigul S Sarmurzina
- Laboratory of Microbiology, Republican Collection of Microorganisms of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, 13/1 Valikhanov Str., 010000, Nur-Sultan, Republic of Kazakhstan
| | - Serik M Shaikhin
- Laboratory of Genetics and Biochemistry of Microorganisms, Republican Collection of Microorganisms of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, 13/1 Valikhanov Str., 010000, Nur-Sultan, Republic of Kazakhstan.
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48
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Mirzaee H, Ariens E, Blaskovich MAT, Clark RJ, Schenk PM. Biostimulation of Bacteria in Liquid Culture for Identification of New Antimicrobial Compounds. Pharmaceuticals (Basel) 2021; 14:1232. [PMID: 34959632 PMCID: PMC8706287 DOI: 10.3390/ph14121232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 12/05/2022] Open
Abstract
We hypothesized that environmental microbiomes contain a wide range of bacteria that produce yet uncharacterized antimicrobial compounds (AMCs) that can potentially be used to control pathogens. Over 600 bacterial strains were isolated from soil and food compost samples, and 68 biocontrol bacteria with antimicrobial activity were chosen for further studies based on inhibition assays against a wide range of food and plant pathogens. For further characterization of the bioactive compounds, a new method was established that used living pathogens in a liquid culture to stimulate bacteria to produce high amounts of AMCs in bacterial supernatants. A peptide gel electrophoresis microbial inhibition assay was used to concurrently achieve size separation of the antimicrobial peptides. Fifteen potential bioactive peptides were then further characterized by tandem MS, revealing cold-shock proteins and 50S ribosomal proteins. To identify non-peptidic AMCs, bacterial supernatants were analyzed by HPLC followed by GC/MS. Among the 14 identified bioactive compounds, 3-isobutylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione and 2-acetyl-3-methyl-octahydropyrrolo[1,2-a]piperazine-1,4-dione were identified as new AMCs. Our work suggests that antimicrobial compound production in microbes is enhanced when faced with a threat from other microorganisms, and that this approach can rapidly lead to the development of new antimicrobials with the potential for upscaling.
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Affiliation(s)
- Hooman Mirzaee
- Plant-Microbe Interactions Laboratory, School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Emily Ariens
- Plant-Microbe Interactions Laboratory, School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Mark A. T. Blaskovich
- Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Richard J. Clark
- Peptide Chemical Biology Laboratory, School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Peer M. Schenk
- Plant-Microbe Interactions Laboratory, School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;
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Reuben RC, Sarkar SL, Roy PC, Anwar A, Hossain MA, Jahid IK. Prebiotics, probiotics and postbiotics for sustainable poultry production. WORLD POULTRY SCI J 2021. [DOI: 10.1080/00439339.2021.1960234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rine Christopher Reuben
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
- German Centre for Integrative Biodiversity Research (Idiv), Halle-Jena-Leipzig, Germany
| | - Shovon Lal Sarkar
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Pravas Chandra Roy
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
| | | | - M. Anwar Hossain
- Department of Microbiology, University of Dhaka and Vice Chancellor, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Iqbal Kabir Jahid
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
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Yang Z, Jiang L, Zhang M, Deng Y, Suo W, Zhang H, Wang C, Li H. Bioconversion of Apple Pomace into Microbial Protein Feed Based on Extrusion Pretreatment. Appl Biochem Biotechnol 2021; 194:1496-1509. [PMID: 34762272 DOI: 10.1007/s12010-021-03727-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/21/2021] [Indexed: 10/19/2022]
Abstract
Apple pomace (AP) is often used directly as animal feed, while the value of feeding is limited by its low protein content. In this study, extrusion pretreatment was performed for AP, and further fermentation was carried out to improve its nutrition value. Strains suitable for extruded apple pomace (EAP) to produce high-quality microbial protein (MP) feed were screened from 12 different strains. Results showed that Aspergillus niger 3.324 (Asn), Candida utilis1314 (Cau), Geotrichum candidum 1315 (Gec), Bacillus subtilis A308 (Bas1), and Lactic acid bacteria (Lac) were screened as the dominant strains, which exhibited higher feeding value. Strong symbiotic effect was observed in fermentation with mixed strains of Asn, Cau, Gec, and Lac at the ratio of 1:1:1:1. Compared with AP, the pure protein content in the optimized fermented EAP (FEAP) was increased by 138% accompanying with a pleasant flavor and taste. And its pure protein content was increased by 19.20% in comparison to that of the fermented apple pomace. The nutrition value of FEAP was characterized by amino acid profiles; it found that FEAP was comparable to other commercial proteins with higher contents of histidine, phenylalanine, threonine, and valine. Combination of fermentation and extrusion technology significantly enhanced pure protein content and nutritional composition of apple pomace, which was revalorized as a nutritive animal feed rich in microbial protein.
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Affiliation(s)
- Zhe Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Lijun Jiang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Min Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Yuxin Deng
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Wenjing Suo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Haijing Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Chenjie Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China
| | - Hongjun Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, Shandong, China.
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