1
|
Liu S, Xiao F, Li Y, Zhang Y, Wang Y, Shi G. Establishment of the CRISPR-Cpf1 gene editing system in Bacillus licheniformis and multiplexed gene knockout. Synth Syst Biotechnol 2024; 10:39-48. [PMID: 39224148 PMCID: PMC11366866 DOI: 10.1016/j.synbio.2024.08.002] [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: 04/23/2024] [Revised: 07/13/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024] Open
Abstract
Bacillus licheniformis is a significant industrial microorganism. Traditional gene editing techniques relying on homologous recombination often exhibit low efficiency due to their reliance on resistance genes. Additionally, the established CRISPR gene editing technology, utilizing Cas9 endonuclease, faces challenges in achieving simultaneous knockout of multiple genes. To address this limitation, the CRISPR-Cpf1 system has been developed, enabling multiplexed gene editing across various microorganisms. Key to the efficient gene editing capability of this system is the rigorous screening of highly effective expression elements to achieve conditional expression of protein Cpf1. In this study, we employed mCherry as a reporter gene and harnessed P mal for regulating the expression of Cpf1 to establish the CRISPR-Cpf1 gene editing system in Bacillus licheniformis. Our system achieved a 100 % knockout efficiency for the single gene vpr and up to 80 % for simultaneous knockout of the double genes epr and mpr. Furthermore, the culture of a series of protease-deficient strains revealed that the protease encoded by aprE contributed significantly to extracellular enzyme activity (approximately 80 %), whereas proteases encoded by vpr, epr, and mpr genes contributed to a smaller proportion of extracellular enzyme activity. These findings provide support for effective molecular modification and metabolic regulation in industrial organisms.
Collapse
Affiliation(s)
- Suxin Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| | - Fengxu Xiao
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| | - Youran Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| | - Yupeng Zhang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| | - Yanling Wang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| | - Guiyang Shi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, PR China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, Jiangsu, PR China
- Jiangsu Provincial Engineering Research Center for Bioactive Product Processing, Jiangnan University, Wuxi, 214122, Jiangsu, PR China
| |
Collapse
|
2
|
Enninful GN, Kuppusamy R, Tiburu EK, Kumar N, Willcox MDP. Non-canonical amino acid bioincorporation into antimicrobial peptides and its challenges. J Pept Sci 2024; 30:e3560. [PMID: 38262069 DOI: 10.1002/psc.3560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/01/2023] [Accepted: 11/14/2023] [Indexed: 01/25/2024]
Abstract
The rise of antimicrobial resistance and multi-drug resistant pathogens has necessitated explorations for novel antibiotic agents as the discovery of conventional antibiotics is becoming economically less viable and technically more challenging for biopharma. Antimicrobial peptides (AMPs) have emerged as a promising alternative because of their particular mode of action, broad spectrum and difficulty that microbes have in becoming resistant to them. The AMPs bacitracin, gramicidin, polymyxins and daptomycin are currently used clinically. However, their susceptibility to proteolytic degradation, toxicity profile, and complexities in large-scale manufacture have hindered their development. To improve their proteolytic stability, methods such as integrating non-canonical amino acids (ncAAs) into their peptide sequence have been adopted, which also improves their potency and spectrum of action. The benefits of ncAA incorporation have been made possible by solid-phase peptide synthesis. However, this method is not always suitable for commercial production of AMPs because of poor yield, scale-up difficulties, and its non-'green' nature. Bioincorporation of ncAA as a method of integration is an emerging field geared towards tackling the challenges of solid-phase synthesis as a green, cheaper, and scalable alternative for commercialisation of AMPs. This review focusses on the bioincorporation of ncAAs; some challenges associated with the methods are outlined, and notes are given on how to overcome these challenges. The review focusses particularly on addressing two key challenges: AMP cytotoxicity towards microbial cell factories and the uptake of ncAAs that are unfavourable to them. Overcoming these challenges will draw us closer to a greater yield and an environmentally friendly and sustainable approach to make AMPs more druggable.
Collapse
Affiliation(s)
| | - Rajesh Kuppusamy
- University of New South Wales, Kensington, New South Wales, Australia
| | | | - Naresh Kumar
- University of New South Wales, Kensington, New South Wales, Australia
| | - Mark D P Willcox
- University of New South Wales, Kensington, New South Wales, Australia
| |
Collapse
|
3
|
di Leandro L, Colasante M, Pitari G, Ippoliti R. Hosts and Heterologous Expression Strategies of Recombinant Toxins for Therapeutic Purposes. Toxins (Basel) 2023; 15:699. [PMID: 38133203 PMCID: PMC10748335 DOI: 10.3390/toxins15120699] [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: 11/15/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
The production of therapeutic recombinant toxins requires careful host cell selection. Bacteria, yeast, and mammalian cells are common choices, but no universal solution exists. Achieving the delicate balance in toxin production is crucial due to potential self-intoxication. Recombinant toxins from various sources find applications in antimicrobials, biotechnology, cancer drugs, and vaccines. "Toxin-based therapy" targets diseased cells using three strategies. Targeted cancer therapy, like antibody-toxin conjugates, fusion toxins, or "suicide gene therapy", can selectively eliminate cancer cells, leaving healthy cells unharmed. Notable toxins from various biological sources may be used as full-length toxins, as plant (saporin) or animal (melittin) toxins, or as isolated domains that are typical of bacterial toxins, including Pseudomonas Exotoxin A (PE) and diphtheria toxin (DT). This paper outlines toxin expression methods and system advantages and disadvantages, emphasizing host cell selection's critical role.
Collapse
Affiliation(s)
| | | | | | - Rodolfo Ippoliti
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (L.d.L.); (M.C.); (G.P.)
| |
Collapse
|
4
|
Liu Y, Zhang X, Meng C, Ji S, Guo K. Antimicrobial activity of the recombinant peptide Melittin-Thanatin with three glycine to tryptophan mutations. Prep Biochem Biotechnol 2022:1-11. [PMID: 36508334 DOI: 10.1080/10826068.2022.2151016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The antimicrobial peptide was considered an important target for developing novel antibacterial drugs. However, the unstable biological activity and the low antibacterial activity are challenges for the application of recombinant proteins. In this study, the fusion peptide of Melittin-Thanatin (MT) was designed and produced, and its derivative sequence (MT-W) was obtained by replacing three glycines (Gly, G) with tryptophan (Trp, W). The MT-W peptide were synthesized in Bacillus subtilis WB700 by EDDIE self-cleavage protein fusion. Compared with MT, MT-W exhibited 2-4 times higher antibacterial rate against Escherichia coli K88. In addition, MT-W showed lower cytotoxicity (IC50 > 300 mg·L-1) to the red blood cell, and more stable biological activities under the conditions of different temperatures (20, 30, 40, 50, 60, 70, 80, and 90 °C), pH values (2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, and 9.0) and different proteases. Especially, MT-W showed a broader antibacterial effect on three drug-resistant strains than florfenicol and oxytetracycline calcium. In conclusion, compared with MT, the MT-W showed increased antibacterial activity, stability, lower cytotoxicity, and broader antimicrobial effect. Therefore, it would become a promising alternative to conventional antibiotics.
Collapse
Affiliation(s)
- Yong Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xiuping Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
- College of Animal Science and Technology, Tarim University, Alar, China
| | - Chunyan Meng
- Beijing Sinogene High-Tech Biotechnology Co., Ltd, Beijing, China
| | - Shengyue Ji
- Beijing Sinogene High-Tech Biotechnology Co., Ltd, Beijing, China
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kangkang Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| |
Collapse
|
5
|
Deo S, Turton KL, Kainth T, Kumar A, Wieden HJ. Strategies for improving antimicrobial peptide production. Biotechnol Adv 2022; 59:107968. [PMID: 35489657 DOI: 10.1016/j.biotechadv.2022.107968] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 01/10/2023]
Abstract
Antimicrobial peptides (AMPs) found in a wide range of animal, insect, and plant species are host defense peptides forming an integral part of their innate immunity. Although the exact mode of action of some AMPs is yet to be deciphered, many exhibit membrane lytic activity or interact with intracellular targets. The ever-growing threat of antibiotic resistance has brought attention to research on AMPs to enhance their clinical use as a therapeutic alternative. AMPs have several advantages over antibiotics such as broad range of antimicrobial activities including anti-fungal, anti-viral and anti-bacterial, and have not reported to contribute to resistance development. Despite the numerous studies to develop efficient production methods for AMPs, limitations including low yield, degradation, and loss of activity persists in many recombinant approaches. In this review, we outline available approaches for AMP production and various expression systems used to achieve higher yield and quality. In addition, recent advances in recombinant strategies, suitable fusion protein partners, and other molecular engineering strategies for improved AMP production are surveyed.
Collapse
Affiliation(s)
- Soumya Deo
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Kristi L Turton
- Alberta RNA Research and Training Institute, Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Dr. W., Lethbridge, AB T1K 3M4, Canada
| | - Tajinder Kainth
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Ayush Kumar
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Hans-Joachim Wieden
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
| |
Collapse
|
6
|
Hashemi S, Niazi A, Baghizadeh A, Taghizadeh MS. Successful use of Nicotiana tabacum hairy roots for the recombinant production of Cecropin A peptide. Biotechnol Appl Biochem 2022; 69:876-886. [PMID: 33788287 DOI: 10.1002/bab.2158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/15/2021] [Indexed: 12/29/2022]
Abstract
Cecropin A, as an antimicrobial peptide (AMP), is possible to use in medical and agricultural fields as a new and safe biocontrol agent. Therefore, it is highly necessary to find a cost-effective and scalable approach to generate a large scale of it. In this research, the Agrobacterium rhizogenes strain ATCC 15834 was used to transfer the Cecropin A gene to the Nicotiana tabacum. After confirmation of transgenic hairy roots, the antibacterial activity of purified Cecropin A peptide was measured using the agar gel diffusion method. Successful transforming of Cecropin A was confirmed at the RNA and protein levels in hairy root cells using RT-PCR and enzyme-linked immunosorbent assay (ELISA), respectively. The highest Cecropin A amount was detected in line 4 of the transgenic lines using ELISA in comparison with the nontransgenic line. Subsequently, the antimicrobial activity of Cecropin A extracted from line 4 showed the highest inhibition activity against Aspergillus niger. Besides, this activity was stable against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Candida albicans pathogens after 7 days. The recombinant production of Cecropin A AMP had a yield of 63.81 μg/g of fresh weight. According to a significant yield, this system can be used to produce the Cecropin A peptide for pharmacological and food science applications.
Collapse
Affiliation(s)
- Samaneh Hashemi
- Biotechnology Research Group, Institute of Environmental Science, Graduate University of Advanced Technology, Kerman, Iran
| | - Ali Niazi
- Institute of Biotechnology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Amin Baghizadeh
- Biotechnology Research Group, Institute of Environmental Science, Graduate University of Advanced Technology, Kerman, Iran
| | | |
Collapse
|
7
|
Yang H, Qu J, Zou W, Shen W, Chen X. An overview and future prospects of recombinant protein production in Bacillus subtilis. Appl Microbiol Biotechnol 2021; 105:6607-6626. [PMID: 34468804 DOI: 10.1007/s00253-021-11533-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/12/2021] [Accepted: 08/15/2021] [Indexed: 12/27/2022]
Abstract
Bacillus subtilis is a well-characterized Gram-positive bacterium and a valuable host for recombinant protein production because of its efficient secretion ability, high yield, and non-toxicity. Here, we comprehensively review the recent studies on recombinant protein production in B. subtilis to update and supplement other previous reviews. We have focused on several aspects, including optimization of B. subtilis strains, enhancement and regulation of expression, improvement of secretion level, surface display of proteins, and fermentation optimization. Among them, optimization of B. subtilis strains mainly involves undirected chemical/physical mutagenesis and selection and genetic manipulation; enhancement and regulation of expression comprises autonomous plasmid and integrated expression, promoter regulation and engineering, and fine-tuning gene expression based on proteases and molecular chaperones; improvement of secretion level predominantly involves secretion pathway and signal peptide screening and optimization; surface display of proteins includes surface display of proteins on spores or vegetative cells; and fermentation optimization incorporates medium optimization, process condition optimization, and feeding strategy optimization. Furthermore, we propose some novel methods and future challenges for recombinant protein production in B. subtilis.Key points• A comprehensive review on recombinant protein production in Bacillus subtilis.• Novel techniques facilitate recombinant protein expression and secretion.• Surface display of proteins has significant potential for different applications.
Collapse
Affiliation(s)
- Haiquan Yang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
| | - Jinfeng Qu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Wei Zou
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin, 644000, Sichuan, China
| | - Wei Shen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Xianzhong Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
| |
Collapse
|
8
|
Zhang L, Li X, Zhan N, Sun T, Li J, Shan A. Maltose Induced Expression of Cecropin AD by SUMO Technology in Bacillus subtilis WB800N. Protein J 2020; 39:383-391. [PMID: 32661730 DOI: 10.1007/s10930-020-09908-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Cecropin AD (CAD) is a hybrid peptide composed of 37 amino acids with the characters of strong antibacterial, antitumor properties and no hemolytic activity, which was regarded as a promising antibiotic candidate. Thus, a safe method to produce Cecropin AD is necessary to be found. In the study, Bacillus subtilis WB800N was employed as host strain. The CAD coding sequence fused with the signal peptide of SPsacB, the 6 × His gene and the gene of small ubiquitin-like modifier were cloned into the maltose-inducible vector pGJ148. Under the induction by 6% maltose, the recombinant fusion protein was successfully expressed and detected in culture substrate. An optimized amount (26.4 mg/L) of the recombinant CAD was purified of culture supernatant. After purification and digestion, the recombinant CAD was harvested about 4.5 mg/L with a purity of 93%. Recombinant CAD exhibited similar antimicrobial activity with synthetic CAD. This shows that the production of CAD in maltose-induced Bacillus subtilis expression system is a relatively safe method, which is vital for the application of CAD in animal husbandry production.
Collapse
Affiliation(s)
- Licong Zhang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Xiaodan Li
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Na Zhan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Taotao Sun
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Jianping Li
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China.
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China.
| |
Collapse
|
9
|
Sampaio de Oliveira KB, Leite ML, Rodrigues GR, Duque HM, da Costa RA, Cunha VA, de Loiola Costa LS, da Cunha NB, Franco OL, Dias SC. Strategies for recombinant production of antimicrobial peptides with pharmacological potential. Expert Rev Clin Pharmacol 2020; 13:367-390. [PMID: 32357080 DOI: 10.1080/17512433.2020.1764347] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The need to develop new drugs for the control of pathogenic microorganisms has redoubled efforts to prospect for antimicrobial peptides (AMPs) from natural sources and to characterize its structure and function. These molecules present a broad spectrum of action against different microorganisms and frequently present promiscuous action, with anticancer and immunomodulatory activities. Furthermore, AMPs can be used as biopharmaceuticals in the treatment of hospital-acquired infections and other serious diseases with relevant social and economic impacts.Areas covered: The low yield and the therefore difficult extraction and purification process in AMPs are problems that limit their industrial application and scientific research. Thus, optimized heterologous expression systems were developed to significantly boost AMP yields, allow high efficiency in purification and structural optimization for the increase of therapeutic activity.Expert opinion: This review provides an update on recent developments in the recombinant production of ribosomal and non-ribosomal synthesis of AMPs and on strategies to increase the expression of genes encoding AMPs at the transcriptional and translational levels and regulation of the post-translational modifications. Moreover, there are detailed reports of AMPs that have already reached marketable status or are in the pipeline under advanced stages of preclinical testing.
Collapse
Affiliation(s)
- Kamila Botelho Sampaio de Oliveira
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Michel Lopes Leite
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Gisele Regina Rodrigues
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Harry Morales Duque
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Rosiane Andrade da Costa
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Victor Albuquerque Cunha
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Lorena Sousa de Loiola Costa
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Nicolau Brito da Cunha
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Octavio Luiz Franco
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil.,Universidade de Brasília, Pós-graduação em Patologia Molecular, Campus Darcy Ribeiro , Brasília, Brazil.,S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco , Campo Grande, Mato Grosso do Sul, Brazil
| | - Simoni Campos Dias
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil.,Universidade de Brasília, Pós-graduação em Biologia Animal, Campus Darcy Ribeiro , Brasília, Brazil
| |
Collapse
|
10
|
Zhou L, Liu Z, Xu G, Li L, Xuan K, Xu Y, Zhang R. Expression of Melittin in Fusion with GST in Escherichia coli and Its Purification as a Pure Peptide with Good Bacteriostatic Efficacy. ACS OMEGA 2020; 5:9251-9258. [PMID: 32363276 PMCID: PMC7191569 DOI: 10.1021/acsomega.0c00085] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/23/2020] [Indexed: 05/10/2023]
Abstract
The expression and purification of melittin (MET) in microbials are difficult because of its antibacterial activities. In this work, MET was fused with a glutathione-S-transferase (GST) tag and expressed in Escherichia coli to overcome its lethality to host cells. The fusion protein GST-MET was highly expressed and then purified by glutathione sepharose high-performance affinity chromatography, digested with prescission protease, and further purified by Superdex Peptide 10/300 GL chromatography. Finally, 3.5 mg/L recombinant melittin (rMET) with a purity of >90% was obtained; its antibacterial activities against Gram-positive Bacillus pumilus and Staphylococcus pasteuri were similar to those of commercial MET. A circular dichroism spectroscopic assay showed that the rMET peptide secondary structure was similar to those of the commercial form. To our knowledge, this is the report of the preparation of active pure rMET with no tags. The successful expression and purification of rMET will enable large-scale, industrial biosynthesis of MET.
Collapse
Affiliation(s)
- Lixian Zhou
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
| | - Zhiyong Liu
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
| | - Guanyu Xu
- Xuteli
School, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Lihong Li
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
| | - Kaiang Xuan
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
| | - Yan Xu
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
| | - Rongzhen Zhang
- Key
Laboratory of Industrial Biotechnology, Ministry of Education, School
of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, P.
R. China
- . Tel: +86 510 85197760. Fax: +86 501 85918201
| |
Collapse
|
11
|
Fernández de Ullivarri M, Arbulu S, Garcia-Gutierrez E, Cotter PD. Antifungal Peptides as Therapeutic Agents. Front Cell Infect Microbiol 2020; 10:105. [PMID: 32257965 PMCID: PMC7089922 DOI: 10.3389/fcimb.2020.00105] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/27/2020] [Indexed: 12/17/2022] Open
Abstract
Fungi have been used since ancient times in food and beverage-making processes and, more recently, have been harnessed for the production of antibiotics and in processes of relevance to the bioeconomy. Moreover, they are starting to gain attention as a key component of the human microbiome. However, fungi are also responsible for human infections. The incidence of community-acquired and nosocomial fungal infections has increased considerably in recent decades. Antibiotic resistance development, the increasing number of immunodeficiency- and/or immunosuppression-related diseases and limited therapeutic options available are triggering the search for novel alternatives. These new antifungals should be less toxic for the host, with targeted or broader antimicrobial spectra (for diseases of known and unknown etiology, respectively) and modes of actions that limit the potential for the emergence of resistance among pathogenic fungi. Given these criteria, antimicrobial peptides with antifungal properties, i.e., antifungal peptides (AFPs), have emerged as powerful candidates due to their efficacy and high selectivity. In this review, we provide an overview of the bioactivity and classification of AFPs (natural and synthetic) as well as their mode of action and advantages over current antifungal drugs. Additionally, natural, heterologous and synthetic production of AFPs with a view to greater levels of exploitation is discussed. Finally, we evaluate the current and potential applications of these peptides, along with the future challenges relating to antifungal treatments.
Collapse
Affiliation(s)
- Miguel Fernández de Ullivarri
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland
| | - Sara Arbulu
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland
| | - Enriqueta Garcia-Gutierrez
- Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland.,Gut Microbes and Health, Quadram Institute Bioscience, Norwich, United Kingdom
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland
| |
Collapse
|
12
|
Zhao X, Xu J, Tan M, Zhen J, Shu W, Yang S, Ma Y, Zheng H, Song H. High copy number and highly stable Escherichia coli-Bacillus subtilis shuttle plasmids based on pWB980. Microb Cell Fact 2020; 19:25. [PMID: 32028973 PMCID: PMC7006159 DOI: 10.1186/s12934-020-1296-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/27/2020] [Indexed: 12/14/2022] Open
Abstract
Background pWB980 derived from pUB110 is a promising expression vector in Bacillus for its high copy number and high stability. However, the low transformation rate of recombinant plasmids to the wild cells limited the application of it. On the basis of pWB980, constructing an E. coli–B. subtilis shuttle plasmid could facilitate the transformation rate to Bacillus cells. Because the insertion site for E. coli replication origin sequence (ori) is not unique in pWB980, in order to investigate the best insertion site, eight shuttle plasmids (pUC980-1 ~ pUC980-8) containing all possible insertion sites and directions were constructed. Results The results showed that all the selected insertion sites could be used to construct shuttle plasmid but some sites required a specific direction. And different insertion sites led to different properties of the shuttle plasmids. The best shuttle plasmids pUC980-1 and pUC980-2, which showed copies more than 450 per cell and segregational stabilities up to 98%, were selected for heterologous expressions of an alkaline pectate lyase gene pelN, an alkaline protease spro1 and a pullulanase gene pulA11, respectively. The highest extracellular activities of PelN, Spro1 and PulA11 were up to 5200 U/mL, 21,537 U/mL and 504 U/mL correspondingly after 54 h, 60 h and 48 h fermentation in a 10 L fermentor. Notably, PelN and Spro1 showed remarkably higher yields in Bacillus than previous reports. Conclusion The optimum ori insertion site was the upstream region of BA3-1 in pWB980 which resulted in shuttle plasmids with higher copy numbers and higher stabilities. The novel shuttle plasmids pUC980-1 and pUC980-2 will be promising expression vectors in B. subtilis. Moreover, the ori insertion mechanism revealed in this work could provide theoretical guidance for further studies of pWB980 and constructions of other shuttle plasmids.
Collapse
Affiliation(s)
- XingYa Zhao
- University of Chinese Academy of Sciences, Beijing, 100049, China.,Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China
| | - JianYong Xu
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China.,Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Ming Tan
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China.,Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Jie Zhen
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China.,Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - WenJu Shu
- University of Chinese Academy of Sciences, Beijing, 100049, China.,Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China
| | - ShiBin Yang
- University of Chinese Academy of Sciences, Beijing, 100049, China.,Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China
| | - YanHe Ma
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China.
| | - HongChen Zheng
- University of Chinese Academy of Sciences, Beijing, 100049, China. .,Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China. .,Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| | - Hui Song
- University of Chinese Academy of Sciences, Beijing, 100049, China. .,Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, China. .,Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| |
Collapse
|
13
|
Engineering Biology to Construct Microbial Chassis for the Production of Difficult-to-Express Proteins. Int J Mol Sci 2020; 21:ijms21030990. [PMID: 32024292 PMCID: PMC7037952 DOI: 10.3390/ijms21030990] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/28/2020] [Accepted: 01/31/2020] [Indexed: 12/12/2022] Open
Abstract
A large proportion of the recombinant proteins manufactured today rely on microbe-based expression systems owing to their relatively simple and cost-effective production schemes. However, several issues in microbial protein expression, including formation of insoluble aggregates, low protein yield, and cell death are still highly recursive and tricky to optimize. These obstacles are usually rooted in the metabolic capacity of the expression host, limitation of cellular translational machineries, or genetic instability. To this end, several microbial strains having precisely designed genomes have been suggested as a way around the recurrent problems in recombinant protein expression. Already, a growing number of prokaryotic chassis strains have been genome-streamlined to attain superior cellular fitness, recombinant protein yield, and stability of the exogenous expression pathways. In this review, we outline challenges associated with heterologous protein expression, some examples of microbial chassis engineered for the production of recombinant proteins, and emerging tools to optimize the expression of heterologous proteins. In particular, we discuss the synthetic biology approaches to design and build and test genome-reduced microbial chassis that carry desirable characteristics for heterologous protein expression.
Collapse
|
14
|
Lee TH, Carpenter TS, D'haeseleer P, Savage DF, Yung MC. Encapsulin carrier proteins for enhanced expression of antimicrobial peptides. Biotechnol Bioeng 2019; 117:603-613. [PMID: 31709513 DOI: 10.1002/bit.27222] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 12/12/2022]
Abstract
Antimicrobial peptides (AMPs) are regarded as attractive alternatives to conventional antibiotics, but their production in microbes remains challenging due to their inherent bactericidal nature. To address these limitations, we have developed a novel AMP fusion protein system based on an encapsulin nanocompartment protein and have demonstrated its utility in enhancing expression of HBCM2, an AMP with activity against Gram-negative bacteria. Here, HBCM2 was fused to the N-terminus of several Encapsulin monomer (Enc) variants engineered with multiple TEV protease recognition site insertions to facilitate proteolytic release of the fused HBCM2. Fusion of HBCM2 to the Enc variants, but not other common carrier proteins, enabled robust overexpression in Escherichia coli C43(DE3) cells. Interestingly, variants with a TEV site insertion following residue K71 in Enc exhibited the highest overexpression and HBCM2 release efficiencies compared to other variants but were deficient in cage formation. HBCM2 was purified from the highest expressing variant following TEV protease digestion and was found to be highly active in inhibiting E. coli growth (MIC = 5 μg/ml). Our study demonstrates the potential use of the Enc system to enhance expression of AMPs for biomanufacturing and therapeutic applications.
Collapse
Affiliation(s)
- Tek-Hyung Lee
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Physical and Life Sciences Directorate, Livermore, California
| | - Timothy S Carpenter
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Physical and Life Sciences Directorate, Livermore, California
| | - Patrik D'haeseleer
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Physical and Life Sciences Directorate, Livermore, California
| | - David F Savage
- Department of Molecular and Cell Biology, University of California, Berkeley, California
| | - Mimi C Yung
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Physical and Life Sciences Directorate, Livermore, California
| |
Collapse
|
15
|
Wisdom EC, Zhou Y, Chen C, Tamerler C, Snead ML. Mitigation of peri-implantitis by rational design of bifunctional peptides with antimicrobial properties. ACS Biomater Sci Eng 2019; 6:2682-2695. [PMID: 32467858 DOI: 10.1021/acsbiomaterials.9b01213] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The integration of molecular and cell biology with materials science has led to strategies to improve the interface between dental implants with the surrounding soft and hard tissues in order to replace missing teeth and restore mastication. More than 3 million implants have been placed in the US alone and this number is rising by 500,000/year. Peri-implantitis, an inflammatory response to oral pathogens growing on the implant surface threatens to reduce service life leading to eventual implant failure, and such an outcome will have adverse impact on public health and create significant health care costs. Here we report a predictive approach to peptide design, which enabled us to engineer a bifunctional peptide to combat bacterial colonization and biofilm formation, reducing the adverse host inflammatory immune response that destroys the tissue surrounding implants and shortens their lifespans. This bifunctional peptide contains a titanium-binding domain that recognizes and binds with high affinity to titanium implant surfaces, fused through a rigid spacer domain with an antimicrobial domain. By varying the antimicrobial peptide domain, we were able to predict the properties of the resulting bifunctional peptides in their entirety by analyzing the sequence-structure-function relationship. These bifunctional peptides achieve: 1) nearly 100% surface coverage within minutes, a timeframe suitable for their clinical application to existing implants; 2) nearly 100% binding to a titanium surface even in the presence of contaminating serum protein; 3) durability to brushing with a commercially available electric toothbrush; and 4) retention of antimicrobial activity on the implant surface following bacterial challenge. A bifunctional peptide film can be applied to both new implants and/or repeatedly applied to previously placed implants to control bacterial colonization mitigating peri-implant disease that threatens dental implant longevity.
Collapse
Affiliation(s)
- E Cate Wisdom
- Bioengineering Program, Institute for Bioengineering Research, University of Kansas, Lawrence, USA
| | - Yan Zhou
- Herman Ostrow School of Dentistry of USC, Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, USA
| | - Casey Chen
- Herman Ostrow School of Dentistry of USC, Division of Periodontology, Diagnostic Services, & Dental Hygiene University of Southern California, Los Angeles, USA
| | - Candan Tamerler
- Bioengineering Program, Institute for Bioengineering Research, University of Kansas, Lawrence, USA.,Mechanical Engineering Department, University of Kansas, Lawrence, USA
| | - Malcolm L Snead
- Herman Ostrow School of Dentistry of USC, Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, USA
| |
Collapse
|
16
|
Mahdavi Abhari F, Pirestani M, Dalimi A. Anti-amoebic activity of a cecropin-melittin hybrid peptide (CM11) against trophozoites of Entamoeba histolytica. Wien Klin Wochenschr 2019; 131:427-434. [PMID: 31451929 DOI: 10.1007/s00508-019-01540-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Abstract
Entamoeba histolytica is an intestinal parasite that is located in the lumen of the human intestine and can attack the epithelium. Antimicrobial peptides (AMPs) are effective against the wide range of microorganisms, such as bacteria, fungi, viruses, yeasts, and protozoa. The CM11 is a chimeric peptide that is derived from bee venom and butterfly compounds. In this study, the cytotoxic effect of CM11 on Human colonic carcinoma (Caco‑2) cells and E. histolytica were assayed in various concentrations of peptide and metronidazole. The MTT results showed that the highest percentage of cytotoxicity on Caco‑2 cells was in 24 μg/ml of CM11 peptide at 24 h and 48 h, which was 49.8%, and 44.3%, respectively. In the metronidazole group, the highest cytotoxicity with 40 μg/ml concentration was observed after 24 h and 48 h, with 43.5%, and 42.1%, respectively. The highest rate of apoptosis induced by CM11 on Caco‑2 was 53.9% and 51.4% after 24 h and 48 h, respectively; however, these rates were 19.1% and 33.4% in the metronidazole group. The effect of peptide and metronidazole on E. histolytica at 24 h and 48 h showed that at the highest concentration of CM11 peptide (24 μg/ml) the cytotoxic effect was 93.7% and 94.9% and for metronidazole (40 μg/ml) was 65.5% and 74.3%, respectively. In coculture, 63.5% and 57.7% of parasites were killed in the highest concentration of CM11 and metronidazole, respectively. The results of this study revealed that CM11 peptide has a high toxicity on E. histolytica, and the use of antimicrobial peptides in the future can be considered as anti-amoebic compounds.
Collapse
Affiliation(s)
- Fatemeh Mahdavi Abhari
- Parasitology and Entomology Dept., Faculty of Medical Sciences, Tarbiat Modares University, Nasr, Jalal AleAhmad, P.O. Box: 14115-331, Tehran, Iran
| | - Majid Pirestani
- Parasitology and Entomology Dept., Faculty of Medical Sciences, Tarbiat Modares University, Nasr, Jalal AleAhmad, P.O. Box: 14115-331, Tehran, Iran.
| | - Abdolhossein Dalimi
- Parasitology and Entomology Dept., Faculty of Medical Sciences, Tarbiat Modares University, Nasr, Jalal AleAhmad, P.O. Box: 14115-331, Tehran, Iran
| |
Collapse
|
17
|
Tian L, Zhang D, Su P, Wei Y, Wang Z, Wang PX, Dai CJ, Gong GL. Design, recombinant expression, and antibacterial activity of a novel hybrid magainin-thanatin antimicrobial peptide. Prep Biochem Biotechnol 2019; 49:427-434. [PMID: 30861356 DOI: 10.1080/10826068.2018.1476875] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Antimicrobial peptides are small molecule polypeptides with biological activity, which can avoid the drug resistance. Magainin and thanatin are antimicrobial peptides with a broad spectrum of inhibitory microbes, and the core sequence of magainin is linked to a core sequence of thanatin. Here, the hybrid magainin-thanatin (MT) antimicrobial peptide was designed through bioinformatics analysis. The recombinant MT antimicrobial peptide was successfully expressed and purified in Escherichia coli BL21 (DE3). The molecular weight of the hybrid MT antimicrobial peptide was about 3.35 kDa. Moreover, the target protein indeed has an inhibitory effect on Staphylococcus aureus, E. coli DH5α, and Bacillus subtilis, with the minimum inhibitory concentrations 16.5, 20, and 9 μM, respectively. The rational designed hybrid MT antimicrobial peptide will hopefully provide large-scale fermentable antimicrobial peptides in the industrial production in the future.
Collapse
Affiliation(s)
- Lu Tian
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Di Zhang
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Peng Su
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Yuan Wei
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Zhongzhong Wang
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Pan Xue Wang
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Chun Ji Dai
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| | - Guo Li Gong
- a School of Food and Bioengineering , Shaanxi University of Science & Technology , Xi'an , China
| |
Collapse
|
18
|
Wibowo D, Zhao CX. Recent achievements and perspectives for large-scale recombinant production of antimicrobial peptides. Appl Microbiol Biotechnol 2018; 103:659-671. [DOI: 10.1007/s00253-018-9524-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/10/2018] [Accepted: 11/14/2018] [Indexed: 02/07/2023]
|
19
|
Wang M, Zheng K, Lin J, Huang M, Ma Y, Li S, Luo X, Wang J. Rapid and efficient production of cecropin A antibacterial peptide in Escherichia coli by fusion with a self-aggregating protein. BMC Biotechnol 2018; 18:62. [PMID: 30290795 PMCID: PMC6173929 DOI: 10.1186/s12896-018-0473-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 09/26/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Cecropin A (CeA), a natural cationic antimicrobial peptide, exerts potent antimicrobial activity against a broad spectrum of Gram-positive and Gram-negative bacteria, making it an attractive candidate substitute for antimicrobials. However, the low production rate and cumbersome, expensive processes required for both its recombinant and chemical synthesis have seriously hindered the exploitation and application of CeA. Here, we utilized a short β-structured self-aggregating protein, ELK16, as a fusion partner of CeA, which allowed the efficient production of high-purity CeA antibacterial peptide with a simple inexpensive process. RESULTS In this study, three different approaches to the production of CeA peptide were investigated: an affinity tag (His-tag)-fused protein expression system (AT-HIS system), a cell-free protein expression system (CF system), and a self-assembling peptide (ELK16)-fused protein expression system (SA-ELK16 system). In the AT-HIS and CF systems, the CeA peptide was obtained with purities of 92.1% and 90.4%, respectively, using one or more affinity-chromatographic purification steps. The procedures were tedious and costly, with CeA yields of only 0.41 and 0.93 μg/mg wet cell weight, respectively. Surprisingly, in the SA-ELK16 system, about 6.2 μg/mg wet cell weight of high-purity (approximately 99.8%) CeA peptide was obtained with a simple low-cost process including steps such as centrifugation and acetic acid treatment. An antimicrobial test showed that the high-purity CeA produced in this study had the same antimicrobial activity as synthetic CeA peptide. CONCLUSIONS In this study, we designed a suitable expression system (SA-ELK16 system) for the production of the antibacterial peptide CeA and compared it with two other protein expression systems. A high yield of high-purity CeA peptide was obtained with the SA-ELK16 system, which greatly reduced the cost and time required for downstream processing. This system may provide a platform for the laboratory scale production of the CeA antibacterial peptide.
Collapse
Affiliation(s)
- Meng Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Kaiwen Zheng
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Jinglian Lin
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Minhua Huang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Yi Ma
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Shan Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Xiaochun Luo
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| | - Jufang Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006 China
| |
Collapse
|
20
|
Chen HL, Su PY, Kuo SC, Lauderdale TLY, Shih C. Adding a C-terminal Cysteine (CTC) Can Enhance the Bactericidal Activity of Three Different Antimicrobial Peptides. Front Microbiol 2018; 9:1440. [PMID: 30002652 PMCID: PMC6031733 DOI: 10.3389/fmicb.2018.01440] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/11/2018] [Indexed: 12/15/2022] Open
Abstract
The emergence of antibiotic-resistant bacteria has threatened our health worldwide. There is an urgent need for novel antibiotics. Previously, we identified a novel 37-mer antimicrobial peptide (AMP), HBcARD, with broad spectrum antimicrobial activity. Here, we improved the efficacy of HBcARD, by re-engineering the peptide, including the addition of a new cysteine to its C-terminus (CTC). The new 28-mer derivative, D-150-177C, contains all D-form arginines, in addition to a C-terminal cycteine. This peptide can kill antibiotic-resistant clinical isolates of Gram-negative bacteria, and is more potent than the parental HBcARD peptide in a mouse sepsis model. In another lung infection mouse model, D-150-177C showed protection efficacy against colistin-resistant Acinetobacter baumannii. Unlike colistin, we observed no acute toxicity of D-150-177C in vivo. Interestingly, we found that CTC modification could enhance the antibacterial activity of several other AMPs, such as buforinII and lysin. The potential application and mechanism of this CTC method as a general approach to improving drug efficacy, warrants further investigation in the future.
Collapse
Affiliation(s)
- Heng-Li Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Pei-Yi Su
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Shu-Chen Kuo
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Tsai-Ling Y Lauderdale
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Chiaho Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| |
Collapse
|
21
|
New trends in aggregating tags for therapeutic protein purification. Biotechnol Lett 2018; 40:745-753. [PMID: 29605942 DOI: 10.1007/s10529-018-2543-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 03/20/2018] [Indexed: 02/06/2023]
Abstract
The rapid growth of the therapeutic protein market calls for more efficient purification methods. Various aggregating tags have recently emerged as simple, fast, cost-effective and column-free technologies for protein (and peptide) purification. In general, these column-free protein purification technologies involve the use of aggregating tags that induce the target protein into insoluble aggregates. These aggregates can be easily separated from soluble impurities and the target protein or peptide is then liberated by a cleavage process. This review summarizes the current state-of-the-art in using aggregating tags for protein purification. The methods are here categorized as follows: (1) tags that allow soluble expression of target protein in vivo and induce aggregation in vitro; (2) tags that induce soluble expression and self-assembling of target protein on insoluble biological polyester beads in vivo; (3) tags that induce formation of inactive aggregates in vivo; (4) tags that induce formation of active aggregates in vivo.
Collapse
|
22
|
The heterologous expression strategies of antimicrobial peptides in microbial systems. Protein Expr Purif 2017; 140:52-59. [DOI: 10.1016/j.pep.2017.08.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/08/2017] [Accepted: 08/08/2017] [Indexed: 12/30/2022]
|