1
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Pandit S, Singh A, Singh J, Xess I, Singh TP, Singh G, Sharma P, Sharma S. Synergistic action of lactoferrin and its derived functional fragments as a promising therapeutic agent in combating mucormycosis. Future Microbiol 2024; 19:857-866. [PMID: 38904282 PMCID: PMC11290771 DOI: 10.1080/17460913.2024.2352263] [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: 01/31/2024] [Accepted: 05/03/2024] [Indexed: 06/22/2024] Open
Abstract
Aim: Currently, we have limited armamentarium of antifungal agents against Mucorales. There is an urgent need to discover novel antifungal agents that are effective, safe and affordable. Materials & methods: In this study, the anti-Mucorale action of native lactoferrin (LF) and its functional fragments CLF, RR6 and LFcin against three common Mucorale species are reported. The synergistic action of LF with antifungal agents like amphotericin B, isavuconazole and posaconazole was analyzed using checkerboard technique. Results: All the three mucor species showed inhibition when treated with fragments. The checkerboard assay confirmed that native LF showed the best synergistic action against Mucorales in combination with Amphotericin B. Conclusion: These results highlight the potential therapeutic value of native LF against Mucorales.
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Affiliation(s)
- Surabhi Pandit
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
| | - Anamika Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
| | - Jiya Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
| | - Immaculata Xess
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi
| | - Tej P Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
| | - Gagandeep Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi
| | - Pradeep Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
| | - Sujata Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi
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2
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Wong TW, Rai V, Dong F, Tkalcic S, Aguilar JS, Dawes ME. Research Note: Bovine lactoferrin in chickens: an investigation into its viability as an antibiotic alternative. Poult Sci 2024; 103:103658. [PMID: 38593548 PMCID: PMC11016783 DOI: 10.1016/j.psj.2024.103658] [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: 12/31/2023] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
Finding effective antibiotic alternatives is crucial to managing the re-emerging health risk of Clostridium perfringens (CP) type A/G-induced avian necrotic enteritis (NE), a disease that has regained prominence in the wake of governmental restrictions on antibiotic use in poultry. Known for its antimicrobial and immunomodulatory effects, the use of bovine lactoferrin (bLF) in chickens is yet to be fully explored. In this study, we hypothesized that bLF can accumulate in the small intestines of healthy chickens through gavage and intramuscular supplementation and serves as a potential antibiotic alternative. Immunohistochemistry located bLF in various layers of the small intestines and ELISA testing confirmed its accumulation. Surprisingly, sham-treated chickens also showed the presence of bLF, prompting a western blotting analysis that dismissed the notion of cross-reactivity between bLF and the avian protein ovotransferrin. Although the significance of the route of administration remains inconclusive, this study supports the hypothesis that bLF is a promising and safe antibiotic alternative with demonstrated resistance to the degradative environment of the chicken intestines. Further studies are needed to determine its beneficial pharmacological effects in CP-infected chickens.
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Affiliation(s)
- Theresa W Wong
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Fanglong Dong
- College of Podiatric Medicine, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Suzana Tkalcic
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766, USA
| | | | - Maisie E Dawes
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766, USA.
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3
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Wang Y, Du C, Zhang Y, Zhu L. Composition and Function of Neutrophil Extracellular Traps. Biomolecules 2024; 14:416. [PMID: 38672433 PMCID: PMC11048602 DOI: 10.3390/biom14040416] [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: 02/29/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Neutrophil extracellular traps (NETs) are intricate fibrous structures released by neutrophils in response to specific stimuli. These structures are composed of depolymerized chromatin adorned with histones, granule proteins, and cytosolic proteins. NETs are formed via two distinct pathways known as suicidal NETosis, which involves NADPH oxidase (NOX), and vital NETosis, which is independent of NOX. Certain proteins found within NETs exhibit strong cytotoxic effects against both pathogens and nearby host cells. While NETs play a defensive role against pathogens, they can also contribute to tissue damage and worsen inflammation. Despite extensive research on the pathophysiological role of NETs, less attention has been paid to their components, which form a unique structure containing various proteins that have significant implications in a wide range of diseases. This review aims to elucidate the components of NETs and provide an overview of their impact on host defense against invasive pathogens, autoimmune diseases, and cancer.
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Affiliation(s)
- Yijie Wang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
- Beijing Institute of Infectious Diseases, Beijing 100015, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Chunjing Du
- Department of Critical Care Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Yue Zhang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
- Beijing Institute of Infectious Diseases, Beijing 100015, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Liuluan Zhu
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
- Beijing Institute of Infectious Diseases, Beijing 100015, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
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4
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Liu Z, Qin X, Nong K, Fang X, Zhang B, Chen W, Wang Z, Wu Y, Shi H, Wang X, Zhang H. Oral administration of LfcinB alleviates DSS-induced colitis by improving the intestinal barrier and microbiota. Food Funct 2024; 15:2038-2051. [PMID: 38293816 DOI: 10.1039/d3fo05236b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Ulcerative colitis (UC) is a kind of inflammatory bowel disease (IBD) that often recurs and is difficult to cure, and no drugs with few side effects are available to treat this disease. LfcinB is a small molecular peptide obtained by the hydrolysis of bovine lactoferrin in the digestive tract of animals. It has strong antibacterial and anti-inflammatory activities. However, direct evidence that LfcinB improves the condition of colitis in mice is rarely reported. In this study, UC was induced in mice by adding 2.5% dextran sulfate (DSS) to drinking water and LfcinB was orally administered. The results showed that oral administration of LfcinB improved colonic tissue damage and inflammatory cell infiltration, increased the expression of tight junction proteins, and down-regulated the phosphorylation of proteins related to the NF-κB/MAPK inflammatory signalling pathway in mice. It also significantly suppressed the relative abundance of potentially pathogenic bacteria (Bacteroides, Barnesiella and Escherichia) in the intestinal flora. In conclusion, oral administration of LfcinB significantly alleviated DSS-induced UC. This may be related to the regulation of inflammatory signalling pathways and gut microbial composition by LfcinB.
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Affiliation(s)
- Zhineng Liu
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Xinyun Qin
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Keyi Nong
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Xin Fang
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Bin Zhang
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Wanyan Chen
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Zihan Wang
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Yijia Wu
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Huiyu Shi
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Xuemei Wang
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
| | - Haiwen Zhang
- College of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, China.
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5
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Dong Z, Zhang X, Zhang Q, Tangthianchaichana J, Guo M, Du S, Lu Y. Anticancer Mechanisms and Potential Anticancer Applications of Antimicrobial Peptides and Their Nano Agents. Int J Nanomedicine 2024; 19:1017-1039. [PMID: 38317847 PMCID: PMC10840538 DOI: 10.2147/ijn.s445333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/16/2024] [Indexed: 02/07/2024] Open
Abstract
Traditional chemotherapy is one of the main methods of cancer treatment, which is largely limited by severe side effects and frequent development of multi-drug resistance by cancer cells. Antimicrobial peptides (AMPs) with high efficiency and low toxicity, as one of the most promising new drugs to replace chemoradiotherapy, have become a current research hotspot, attracting the attention of worldwide researchers. AMPs are natural-source small peptides from the innate immune system, and certain AMPs can selectively kill a broad spectrum of cancer cells while exhibiting less damage to normal cells. Although it involves intracellular mechanisms, AMPs exert their anti-cancer effects mainly through membrane destruction effect; thus, AMPs also hold unique advantages in fighting drug-resistant cancer cells. However, the poor stability and hemolytic toxicity of peptides limit their clinical application. Fortunately, functionalized nanoparticles have many possibilities in overcoming the shortcomings of AMPs, which provides a huge prospect for better application of AMPs. In this paper, we briefly introduce the characteristics and different sources of AMPs, review and summarize the mechanisms of action and the research status of AMPs used as an anticancer therapy, and finally focus on the further use of AMPs nano agents in the anti-cancer direction.
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Affiliation(s)
- Ziyi Dong
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
- Research and Development Centre in Beijing, CSPC Pharmaceutical Group Limited, Beijing, People’s Republic of China
| | - Xinyu Zhang
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Qing Zhang
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Jakkree Tangthianchaichana
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Mingxue Guo
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Shouying Du
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Yang Lu
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
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6
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Dyrda-Terniuk T, Pomastowski P. The Multifaceted Roles of Bovine Lactoferrin: Molecular Structure, Isolation Methods, Analytical Characteristics, and Biological Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20500-20531. [PMID: 38091520 PMCID: PMC10755757 DOI: 10.1021/acs.jafc.3c06887] [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: 09/25/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023]
Abstract
Bovine lactoferrin (bLF) is widely known as an iron-binding glycoprotein from the transferrin family. The bLF molecule exhibits a broad spectrum of biological activity, including iron delivery, antimicrobial, antiviral, immunomodulatory, antioxidant, antitumor, and prebiotic functions, thereby making it one of the most valuable representatives for biomedical applications. Remarkably, LF functionality might completely differ in dependence on the iron saturation state and glycosylation patterns. Recently, a violently growing demand for bLF production has been observed, mostly for infant formulas, dietary supplements, and functional food formulations. Unfortunately, one of the reasons that inhibit the development of the bLF market and widespread protein implementation is related to its negligible amount in both major sources─colostrum and mature milk. This study provides a comprehensive overview of the significance of bLF research by delineating the key structural characteristics of the protein and elucidating their impact on its physicochemical and biological properties. Progress in the development of optimal isolation techniques for bLF is critically assessed, alongside the challenges that arise during its production. Furthermore, this paper presents a curated list of the most relevant instrumental techniques for the characterization of bLF. Lastly, it discusses the prospective applications and future directions for bLF-based formulations, highlighting their potential in various fields.
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Affiliation(s)
- Tetiana Dyrda-Terniuk
- Centre for Modern Interdisciplinary
Technologies, Nicolaus Copernicus University
in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary
Technologies, Nicolaus Copernicus University
in Toruń, Wileńska 4, 87-100 Toruń, Poland
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7
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Abdelnour SA, Ghazanfar S, Abdel-Hamid M, Abdel-Latif HMR, Zhang Z, Naiel MAE. Therapeutic uses and applications of bovine lactoferrin in aquatic animal medicine: an overview. Vet Res Commun 2023; 47:1015-1029. [PMID: 36658448 PMCID: PMC10485086 DOI: 10.1007/s11259-022-10060-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 12/19/2022] [Indexed: 01/21/2023]
Abstract
Aquaculture is an important food sector throughout the globe because of its importance in ensuring the availability of nutritious and safe food for human beings. In recent years, this sector has been challenged with several obstacles especially the emergence of infectious disease outbreaks. Various treatment and control aspects, including antibiotics, antiseptics, and other anti-microbial agents, have been used to treat farmed fish and shrimp against diseases. Nonetheless, these medications have been prohibited and banned in many countries because of the development of antimicrobial-resistant bacterial strains, the accumulation of residues in the flesh of farmed fish and shrimp, and their environmental threats to aquatic ecosystems. Therefore, scientists and researchers have concentrated their research on finding natural and safe products to control disease outbreaks. From these natural products, bovine lactoferrin can be utilized as a functional feed supplement. Bovine lactoferrin is a multi-functional glycoprotein applied in various industries, like food preservation, and numerous medications, due to its non-toxic and ecological features. Recent research has proposed multiple advantages and benefits of using bovine lactoferrin in aquaculture. Reports showed its potential ability to enhance growth, reduce mortalities, regulate iron metabolism, decrease disease outbreaks, stimulate the antioxidant defense system, and recuperate the overall health conditions of the treated fish and shrimp. Besides, bovine lactoferrin can be considered as a safe antibiotic alternative and a unique therapeutic agent to decrease the negative impacts of infectious diseases. These features can be attributed to its well-known antibacterial, anti-parasitic, anti-inflammatory, immunostimulatory, and antioxidant capabilities. This literature review will highlight the implications of bovine lactoferrin in aquaculture, particularly highlighting its therapeutic features and ability to promote immunological defensive pathways in fish. The information included in this article would be valuable for further research studies to improve aquaculture's sustainability and the functionality of aquafeeds.
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Affiliation(s)
- Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, 44519, Zagazig, Egypt
| | - Shakira Ghazanfar
- National Institute for Genomics Advanced and Biotechnology (NIGAB), National Agricultural Research Centre, Park Road, 45500, Islamabad, Pakistan
| | - Mahmoud Abdel-Hamid
- Dairy Science Department, Faculty of Agriculture, Cairo University, 12613, Giza, Egypt
| | - Hany M R Abdel-Latif
- Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Alexandria University, 22758, Alexandria, Egypt
| | - Zhaowei Zhang
- National Reference Laboratory for Agricultural Testing (Biotoxin), Key Laboratory of Biology and Genetic Improvement of Oil Crops, Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, 430062, Wuhan, PR China
| | - Mohammed A E Naiel
- Department of Animal Production, Faculty of Agriculture, Zagazig University, 44519, Zagazig, Egypt.
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8
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Vargas-Casanova Y, Bravo-Chaucanés CP, Martínez AXH, Costa GM, Contreras-Herrera JL, Medina RF, Rivera-Monroy ZJ, García-Castañeda JE, Parra-Giraldo CM. Combining the Peptide RWQWRWQWR and an Ethanolic Extract of Bidens pilosa Enhances the Activity against Sensitive and Resistant Candida albicans and C. auris Strains. J Fungi (Basel) 2023; 9:817. [PMID: 37623588 PMCID: PMC10455339 DOI: 10.3390/jof9080817] [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: 05/26/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 08/26/2023] Open
Abstract
The antifungal activity of palindromic peptide RWQWRWQWR and its derivatives was evaluated against clinical isolates of Candida albicans and C. auris. Also, Bidens pilosa ethanolic extracts of leaves and stem were evaluated. Furthermore, combinations of peptide, extract, and/or fluconazole (FLC) were evaluated. The cytotoxicity of peptides and extracts in erythrocytes and fibroblasts was determined. The original palindromic peptide, some derivative peptides, and the ethanolic extract of leaves of B. pilosa exhibited the highest activity in some of the strains evaluated. Synergy was obtained between the peptide and the FLC against C. auris 435. The combination of the extract and the original palindromic peptide against C. albicans SC5314, C. auris 435, and C. auris 537 decreased the minimal inhibitory concentrations (MICs) by a factor of between 4 and 16. These mixtures induced changes in cell morphology, such as deformations on the cell surface. The results suggest that the combination of RWQWRWQWR and B. pilosa extract is an alternative for enhancing antifungal activity and decreasing cytotoxicity and costs and should be considered to be a promising strategy for treating diseases caused by Candida spp.
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Affiliation(s)
- Yerly Vargas-Casanova
- Microbiology Department, Faculty of Sciences, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (Y.V.-C.); (C.P.B.-C.)
| | | | | | - Geison Modesti Costa
- Chemistry Department, Faculty of Sciences, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (A.X.H.M.); (G.M.C.)
| | | | - Ricardo Fierro Medina
- Faculty of Sciences, Universidad Nacional of Colombia, Bogotá 111321, Colombia; (R.F.M.); (Z.J.R.-M.); (J.E.G.-C.)
| | - Zuly Jenny Rivera-Monroy
- Faculty of Sciences, Universidad Nacional of Colombia, Bogotá 111321, Colombia; (R.F.M.); (Z.J.R.-M.); (J.E.G.-C.)
| | | | - Claudia Marcela Parra-Giraldo
- Microbiology Department, Faculty of Sciences, Pontificia Universidad Javeriana, Bogotá 110231, Colombia; (Y.V.-C.); (C.P.B.-C.)
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9
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Bo LY, Pan ZQ, Zhang Q, Song CL, Ren J, Zhao XH. Activity Changes of the Peptic Lactoferrin Hydrolysate in Human Gastric Cancer AGS Cells in Response to Cu(II) or Mn(II) Addition. Foods 2023; 12:2662. [PMID: 37509754 PMCID: PMC10378690 DOI: 10.3390/foods12142662] [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: 06/11/2023] [Revised: 06/29/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Lactoferrin is an interesting bioactive protein in milk and can interact with various metal ions of trace elements such as copper, iron, manganese, and others. In this study, a lactoferrin hydrolysate (LFH) was generated from commercial bovine lactoferrin by protease pepsin, fortified with Cu2+ (or Mn2+) at two levels of 0.64 and 1.28 (or 0.28 and 0.56) mg/g protein, respectively, and then measured for the resultant bioactivity changes in the well-differentiated human gastric cancer AGS cells. The assaying results indicated that the LFH and Cu/Mn-fortified products had long-term anti-proliferation on the cells, while the treated cells showed DNA fragmentation and increased apoptotic cell proportions. Regarding the control cells, the cells treated with the LFH and especially Cu/Mn-fortified LFH had remarkably up-regulated mRNA expression of caspase-3 and Bax by respective 1.21-3.23 and 2.23-2.83 folds, together with down-regulated mRNA expression Bcl-2 by 0.88-0.96 folds. Moreover, Western-blot assaying results also indicated that the cells exposed to the LFH and Cu/Mn-fortified LFH (especially Mn at higher level) for 24 h had an enhanced caspase-3 expression and increased ratio of Bax/Bcl-2. It can thus be concluded that the used Cu/Mn-addition to the LFH may lead to increased bioactivity in the AGS cells; to be more specific, the two metal ions at the used addition levels could endow LFH with a higher ability to cause cell apoptosis by activating caspase-3 and increasing the Bax/Bcl-2 ratio.
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Affiliation(s)
- Li-Ying Bo
- Faculty of Food Quality and Safety, Qiqihar University, Qiqihar 161006, China
| | - Zhi-Qin Pan
- Faculty of Food Quality and Safety, Qiqihar University, Qiqihar 161006, China
| | - Qiang Zhang
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Chun-Li Song
- Faculty of Food Quality and Safety, Qiqihar University, Qiqihar 161006, China
| | - Jian Ren
- Faculty of Food Quality and Safety, Qiqihar University, Qiqihar 161006, China
| | - Xin-Huai Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, Maoming 525000, China
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10
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Zhang K, Teng D, Mao R, Yang N, Hao Y, Wang J. Thinking on the Construction of Antimicrobial Peptide Databases: Powerful Tools for the Molecular Design and Screening. Int J Mol Sci 2023; 24:ijms24043134. [PMID: 36834553 PMCID: PMC9960615 DOI: 10.3390/ijms24043134] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023] Open
Abstract
With the accelerating growth of antimicrobial resistance (AMR), there is an urgent need for new antimicrobial agents with low or no AMR. Antimicrobial peptides (AMPs) have been extensively studied as alternatives to antibiotics (ATAs). Coupled with the new generation of high-throughput technology for AMP mining, the number of derivatives has increased dramatically, but manual running is time-consuming and laborious. Therefore, it is necessary to establish databases that combine computer algorithms to summarize, analyze, and design new AMPs. A number of AMP databases have already been established, such as the Antimicrobial Peptides Database (APD), the Collection of Antimicrobial Peptides (CAMP), the Database of Antimicrobial Activity and Structure of Peptides (DBAASP), and the Database of Antimicrobial Peptides (dbAMPs). These four AMP databases are comprehensive and are widely used. This review aims to cover the construction, evolution, characteristic function, prediction, and design of these four AMP databases. It also offers ideas for the improvement and application of these databases based on merging the various advantages of these four peptide libraries. This review promotes research and development into new AMPs and lays their foundation in the fields of druggability and clinical precision treatment.
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Affiliation(s)
- Kun Zhang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Correspondence: ; Tel.: +86-10-82106081 or +86-10-82106079; Fax: +86-10-82106079
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11
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Nano-Conjugated Food-Derived Antimicrobial Peptides As Natural Biopreservatives: A Review of Technology and Applications. Antibiotics (Basel) 2023; 12:antibiotics12020244. [PMID: 36830155 PMCID: PMC9952009 DOI: 10.3390/antibiotics12020244] [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: 12/22/2022] [Revised: 01/21/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
In recent years, microbial food safety has garnered a lot of attention due to worldwide expansion of the food industry and processed food products. This has driven the development of novel preservation methods over traditional ones. Food-derived antimicrobial peptides (F-AMPs), produced by the proteolytic degradation of food proteins, are emerging as pragmatic alternatives for extension of the shelf-life of food products. The main benefits of F-AMPs are their wide spectrum antimicrobial efficacy and low propensity for the development of antibiotic resistance. However, direct application of F-AMPs in food limits its efficacy during storage. Therefore, the development of nanocarriers for the conjugation and distribution of potential AMPs may hold great potential to increase their bioactivity. This review highlights the significance of F-AMPs as a feasible and sustainable alternative to conventional food preservatives. The most recent developments in production, characterization, and mode of action of these AMPs against planktonic and biofilm forming pathogens are thoroughly discussed in this work. Moreover, nano-conjugation of F-AMPs with different nano-carriers and potential future application in food packaging are emphasized. This review may aid in comprehending the nano-conjugation of F-AMPs and offer insightful recommendations for further exploration and potential uses in the food processing industry.
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12
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Specific Focus on Antifungal Peptides against Azole Resistant Aspergillus fumigatus: Current Status, Challenges, and Future Perspectives. J Fungi (Basel) 2022; 9:jof9010042. [PMID: 36675863 PMCID: PMC9864941 DOI: 10.3390/jof9010042] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/25/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022] Open
Abstract
The prevalence of fungal infections is increasing worldwide, especially that of aspergillosis, which previously only affected people with immunosuppression. Aspergillus fumigatus can cause allergic bronchopulmonary aspergillosis and endangers public health due to resistance to azole-type antimycotics such as fluconazole. Antifungal peptides are viable alternatives that combat infection by forming pores in membranes through electrostatic interactions with the phospholipids as well as cell death to peptides that inhibit protein synthesis and inhibit cell replication. Engineering antifungal peptides with nanotechnology can enhance the efficacy of these therapeutics at lower doses and reduce immune responses. This manuscript explains how antifungal peptides combat antifungal-resistant aspergillosis and also how rational peptide design with nanotechnology and artificial intelligence can engineer peptides to be a feasible antifungal alternative.
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Abad I, Serrano L, Graikini D, Pérez MD, Grasa L, Sánchez L. Effect of in vitro gastrointestinal digestion on the antibacterial activity of bioactive dairy formulas supplemented with lactoferrin against Cronobacter sakazakii. Biometals 2022; 36:667-681. [PMID: 36335546 PMCID: PMC10182125 DOI: 10.1007/s10534-022-00459-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/21/2022] [Indexed: 11/08/2022]
Abstract
AbstractMilk is a source of proteins with high nutritional value and relevant biological activities. Bioactive milk proteins, like lactoferrin, are important for newborn development and can also be used as ingredients in functional products to improve health. Lactoferrin is essential in infant’s diet, since protects against infections and promotes immune system maturation. Bovine lactoferrin is used to supplement formula milk in order to strengthen baby’s defences against some pathogenic bacteria. Thus, lactoferrin supplemented formula can be a barrier against emergent pathogens, such as Cronobacter sakazakii, which has caused great concern in the last few years. Milk proteins generate bioactive peptides in the digestion process, and it is known that industrial processing can modify their susceptibility to digestion. Treatments such as heating have been shown to denature whey proteins and make them more easily digestible. Therefore, the aim of this study was to analyze the effect of technological treatments and gastrointestinal digestion on the antibacterial activity against C. sakazakii of proteins present in dairy formulas supplemented with lactoferrin. Commercial bovine lactoferrin has been shown to have antibacterial activity against C. sakazakii, both in the native state and after static in vitro gastrointestinal digestion. In addition, the digests obtained from dairy formulas subjected to technological treatments, either homogenization or pasteurization, have higher antibacterial activity than non-treated formulas. The release of low molecular weight peptides during the in vitro gastric digestion is probably the cause that would explain the enhanced antibacterial activity of the digested dairy formulas.
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Avalos-Gómez C, Ramírez-Rico G, Ruiz-Mazón L, Sicairos NL, Serrano-Luna J, de la Garza M. Lactoferrin: An Effective Weapon in the Battle Against Bacterial Infections. Curr Pharm Des 2022; 28:3243-3260. [PMID: 36284379 DOI: 10.2174/1381612829666221025153216] [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: 04/29/2022] [Accepted: 09/27/2022] [Indexed: 01/28/2023]
Abstract
The emergence of multidrug-resistant bacterial strains with respect to commercially available antimicrobial drugs has marked a watershed in treatment therapies to fight pathogens and has stimulated research on alternative remedies. Proteins of the innate immune system of mammals have been highlighted as potentially yielding possible treatment options for infections. Lactoferrin (Lf) is one of these proteins; interestingly, no resistance to it has been found. Lf is a conserved cationic nonheme glycoprotein that is abundant in milk and is also present in low quantities in mucosal secretions. Moreover, Lf is produced and secreted by the secondary granules of neutrophils at infection sites. Lf is a molecule of approximately 80 kDa that displays multiple functions, such as antimicrobial, anti-viral, anti-inflammatory, and anticancer actions. Lf can synergize with antibiotics, increasing its potency against bacteria. Lactoferricins (Lfcins) are peptides resulting from the N-terminal end of Lf by proteolytic cleavage with pepsin. They exhibit several anti-bacterial effects similar to those of the parental glycoprotein. Synthetic analog peptides exhibiting potent antimicrobial properties have been designed. The aim of this review is to update understanding of the structure and effects of Lf and Lfcins as anti-bacterial compounds, focusing on the mechanisms of action in bacteria and the use of Lf in treatment of infections in patients, including those studies where no significant differences were found. Lf could be an excellent option for prevention and treatment of bacterial diseases, mainly in combined therapies with antibiotics or other antimicrobials.
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Affiliation(s)
- Christian Avalos-Gómez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Gerardo Ramírez-Rico
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico.,Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Km 2.5 Carretera Cuautitlán- Teoloyucan, Cuautitlán Izcalli, 54714, Mexico
| | - Lucero Ruiz-Mazón
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Nidia León Sicairos
- Departamento de Investigación, Hospital Pediátrico de Sinaloa, Unidad de Investigación, Facultad de Medicina, Universidad Autónoma de Sinaloa, Mexico
| | - Jesús Serrano-Luna
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Mireya de la Garza
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
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15
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Ohradanova-Repic A, Skrabana R, Gebetsberger L, Tajti G, Baráth P, Ondrovičová G, Praženicová R, Jantova N, Hrasnova P, Stockinger H, Leksa V. Blockade of TMPRSS2-mediated priming of SARS-CoV-2 by lactoferricin. Front Immunol 2022; 13:958581. [PMID: 36081512 PMCID: PMC9445877 DOI: 10.3389/fimmu.2022.958581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022] Open
Abstract
In addition to vaccines, there is an urgent need for supplemental antiviral therapeutics to dampen the persistent COVID-19 pandemic caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). The transmembrane protease serine 2 (TMPRSS2), that is responsible for proteolytic priming of the SARS-CoV-2 spike protein, appears as a rational therapeutic target. Accordingly, selective inhibitors of TMPRSS2 represent potential tools for prevention and treatment of COVID-19. Previously, we identified the human milk glycoprotein lactoferrin as a natural inhibitor of plasminogen conversion to plasmin, a serine protease homologous to TMPRSS2. Here, we tested whether lactoferrin and lactoferricin, a biologically active natural peptide produced by pepsin-mediated digestion of lactoferrin, together with synthetic peptides derived from lactoferrin, were able to block TMPRSS2 and SARS-CoV-2 infection. Particularly, we revealed that both lactoferricin and the N-terminal synthetic peptide pLF1 significantly inhibited: i) proteolytic activity of TMPRSS2 and plasmin, ii) proteolytic processing of the SARS-CoV-2 spike protein, and iii) SARS-CoV-2 infection of SARS-CoV-2-permissive cells. Thus, natural and synthetic peptides derived from lactoferrin represent feasible candidates for supporting prevention and treatment of COVID-19.
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Affiliation(s)
- Anna Ohradanova-Repic
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Vienna, Austria
- *Correspondence: Vladimir Leksa, ; Anna Ohradanova-Repic,
| | - Rostislav Skrabana
- Laboratory of Structural Biology of Neurodegeneration, Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Laura Gebetsberger
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Vienna, Austria
| | - Gabor Tajti
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Vienna, Austria
| | - Peter Baráth
- Department of Glycobiology, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Gabriela Ondrovičová
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Romana Praženicová
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
- Department of Biochemistry, Comenius University, Bratislava, Slovakia
| | - Nikola Jantova
- Laboratory of Structural Biology of Neurodegeneration, Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
- Department of Biochemistry, Comenius University, Bratislava, Slovakia
| | - Patricia Hrasnova
- Laboratory of Structural Biology of Neurodegeneration, Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
- Department of Biochemistry, Comenius University, Bratislava, Slovakia
| | - Hannes Stockinger
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Vienna, Austria
| | - Vladimir Leksa
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Vienna, Austria
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
- *Correspondence: Vladimir Leksa, ; Anna Ohradanova-Repic,
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Abstract
Preterm infants are at higher risk of mortality and morbidity compared with those born at term. Nutrition-related morbidities include poor growth, immune deficiency, nutritional deficiencies, and adverse long-term neurodevelopment. In addition to macronutrients, many nutritional supplements have been used to enhance growth and development, and decrease infections. Nutrients can enhance preterm infants' immune status, optimize the microbiome, improve growth and development, and influence the risk of necrotizing enterocolitis, sepsis, and other outcomes.
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Affiliation(s)
- Mohan Pammi
- Section of Neonatology, Department of Pediatrics Baylor College of Medicine & Texas Children's Hospital Houston, TX 77030, USA.
| | - Ravi M. Patel
- Department of Pediatrics, Emory University, Atlanta, Georgia
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17
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Effects of heat treatment and simulated digestion on the properties and osteogenic activity of bovine lactoferrin. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113475] [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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18
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Darmawan KK, Karagiannis TC, Hughes JG, Small DM, Hung A. Molecular modeling of lactoferrin for food and nutraceutical applications: insights from in silico techniques. Crit Rev Food Sci Nutr 2022; 63:9074-9097. [PMID: 35503258 DOI: 10.1080/10408398.2022.2067824] [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] [Indexed: 12/23/2022]
Abstract
Lactoferrin is a protein, primarily found in milk that has attracted the interest of the food industries due to its health properties. Nevertheless, the instability of lactoferrin has limited its commercial application. Recent studies have focused on encapsulation to enhance the stability of lactoferrin. However, the molecular insights underlying the changes of structural properties of lactoferrin and the interaction with protectants remain poorly understood. Computational approaches have proven useful in understanding the structural properties of molecules and the key binding with other constituents. In this review, comprehensive information on the structure and function of lactoferrin and the binding with various molecules for food purposes are reviewed, with a special emphasis on the use of molecular dynamics simulations. The results demonstrate the application of modeling and simulations to determine key residues of lactoferrin responsible for its stability and interactions with other biomolecular components under various conditions, which are also associated with its functional benefits. These have also been extended into the potential creation of enhanced lactoferrin for commercial purposes. This review provides valuable strategies in designing novel nutraceuticals for food science practitioners and those who have interests in acquiring familiarity with the application of computational modeling for food and health purposes.
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Affiliation(s)
- Kevion K Darmawan
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Tom C Karagiannis
- Epigenomic Medicine, Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Australia
| | - Jeff G Hughes
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Darryl M Small
- School of Science, STEM College, RMIT University, Melbourne, Australia
| | - Andrew Hung
- School of Science, STEM College, RMIT University, Melbourne, Australia
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19
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Escobar‐Salom M, Torrens G, Jordana‐Lluch E, Oliver A, Juan C. Mammals' humoral immune proteins and peptides targeting the bacterial envelope: from natural protection to therapeutic applications against multidrug‐resistant
Gram
‐negatives. Biol Rev Camb Philos Soc 2022; 97:1005-1037. [PMID: 35043558 PMCID: PMC9304279 DOI: 10.1111/brv.12830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 12/11/2022]
Abstract
Mammalian innate immunity employs several humoral ‘weapons’ that target the bacterial envelope. The threats posed by the multidrug‐resistant ‘ESKAPE’ Gram‐negative pathogens (Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) are forcing researchers to explore new therapeutic options, including the use of these immune elements. Here we review bacterial envelope‐targeting (peptidoglycan and/or membrane‐targeting) proteins/peptides of the mammalian immune system that are most likely to have therapeutic applications. Firstly we discuss their general features and protective activity against ESKAPE Gram‐negatives in the host. We then gather, integrate, and discuss recent research on experimental therapeutics harnessing their bactericidal power, based on their exogenous administration and also on the discovery of bacterial and/or host targets that improve the performance of this endogenous immunity, as a novel therapeutic concept. We identify weak points and knowledge gaps in current research in this field and suggest areas for future work to obtain successful envelope‐targeting therapeutic options to tackle the challenge of antimicrobial resistance.
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Affiliation(s)
- María Escobar‐Salom
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Gabriel Torrens
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Elena Jordana‐Lluch
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Antonio Oliver
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Carlos Juan
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
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20
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Liu N, Feng G, Zhang X, Hu Q, Sun S, Sun J, Sun Y, Wang R, Zhang Y, Wang P, Li Y. The Functional Role of Lactoferrin in Intestine Mucosal Immune System and Inflammatory Bowel Disease. Front Nutr 2021; 8:759507. [PMID: 34901112 PMCID: PMC8655231 DOI: 10.3389/fnut.2021.759507] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/18/2021] [Indexed: 12/21/2022] Open
Abstract
Inflammatory bowel disease (IBD), encompassing ulcerative colitis (UC) and Crohn's disease (CD), is one of the main types of intestinal inflammatory diseases with intestine mucosal immune disorder. Intestine mucosal immune system plays a remarkable and important role in the etiology and pathogenesis of IBD. Therefore, understanding the intestine mucosal immune mechanism is a key step to develop therapeutic interventions for IBD. Intestine mucosal immune system and IBD are influenced by various factors, such as inflammation, gut permeability, gut microbiota, and nutrients. Among these factors, emerging evidence show that nutrients play a key role in inflammation activation, integrity of intestinal barrier, and immune cell modulation. Lactoferrin (LF), an iron-binding glycoprotein belonging to transferrin family, is a dietary bioactive component abundantly found in mammalian milk. Notably, LF has been reported to perform diverse biological functions including antibacterial activity, anti-inflammatory activity, intestinal barrier protection, and immune cell modulation, and is involved in maintaining intestine mucosal immune homeostasis. The improved understanding of the properties of LF in intestine mucosal immune system and IBD will facilitate its application in nutrition, clinical medicine, and health. Herein, this review outlines the recent advancements on LF as a potential therapeutic intervention for IBD associated with intestine mucosal immune system dysfunction. We hope this review will provide a reference for future studies and lay a theoretical foundation for LF-based therapeutic interventions for IBD by understanding the particular effects of LF on intestine mucosal immune system.
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Affiliation(s)
- Ning Liu
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Gang Feng
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- Yili Maternal & Infant Nutrition Institute, Beijing, China
| | - Xiaoying Zhang
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- Yili Maternal & Infant Nutrition Institute, Beijing, China
| | - Qingjuan Hu
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Shiqiang Sun
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Jiaqi Sun
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- Yili Maternal & Infant Nutrition Institute, Beijing, China
| | - Yanan Sun
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Ran Wang
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Yan Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Pengjie Wang
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Yixuan Li
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
- Key Laboratory of Functional Dairy, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
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21
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Gruden Š, Poklar Ulrih N. Diverse Mechanisms of Antimicrobial Activities of Lactoferrins, Lactoferricins, and Other Lactoferrin-Derived Peptides. Int J Mol Sci 2021; 22:ijms222011264. [PMID: 34681923 PMCID: PMC8541349 DOI: 10.3390/ijms222011264] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 12/22/2022] Open
Abstract
Lactoferrins are an iron-binding glycoprotein that have important protective roles in the mammalian body through their numerous functions, which include antimicrobial, antitumor, anti-inflammatory, immunomodulatory, and antioxidant activities. Among these, their antimicrobial activity has been the most studied, although the mechanism behind antimicrobial activities remains to be elucidated. Thirty years ago, the first lactoferrin-derived peptide was isolated and showed higher antimicrobial activity than the native lactoferrin lactoferricin. Since then, numerous studies have investigated the antimicrobial potencies of lactoferrins, lactoferricins, and other lactoferrin-derived peptides to better understand their antimicrobial activities at the molecular level. This review defines the current antibacterial, antiviral, antifungal, and antiparasitic activities of lactoferrins, lactoferricins, and lactoferrin-derived peptides. The primary focus is on their different mechanisms of activity against bacteria, viruses, fungi, and parasites. The role of their structure, amino-acid composition, conformation, charge, hydrophobicity, and other factors that affect their mechanisms of antimicrobial activity are also reviewed.
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22
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Effects of Substituting Arginine by Lysine in Bovine Lactoferricin Derived Peptides: Pursuing Production Lower Costs, Lower Hemolysis, and Sustained Antimicrobial Activity. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10207-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Singh J, Vijayan V, Ahmedi S, Pant P, Manzoor N, Singh TP, Sharma P, Sharma S. Lactosmart: A Novel Therapeutic Molecule for Antimicrobial Defense. Front Microbiol 2021; 12:672589. [PMID: 34220755 PMCID: PMC8250155 DOI: 10.3389/fmicb.2021.672589] [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: 02/26/2021] [Accepted: 04/30/2021] [Indexed: 11/13/2022] Open
Abstract
The problem of antibiotic resistance has prompted researchers around the globe to search for new antimicrobial agents. Antimicrobial proteins and peptides are naturally secreted by almost all the living organisms to fight infections and can be safer alternatives to chemical antibiotics. Lactoferrin (LF) is a known antimicrobial protein present in all body secretions. In this study, LF was digested by trypsin, and the resulting hydrolysates were studied with respect to their antimicrobial properties. Among the hydrolysates, a 21-kDa basic fragment of LF (termed lactosmart) showed promise as a new potent antimicrobial agent. The antimicrobial studies were performed on various microorganisms including Shigella flexneri, Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli as well as fungal pathogens such as Candida albicans, Candida tropicalis, and Candida glabrata. In addition, the lipopolysaccharide (LPS)-binding properties of lactosmart were studied using surface plasmon resonance technique in vitro, along with docking of LPS and molecular dynamics (MD) simulation studies. The results showed that lactosmart had better inhibitory effects against pathogenic microorganisms compared to LF. The results of docking and MD simulation studies further validated the tighter binding of LPS to lactosmart compared to LF. The two LPS-binding sites have been characterized structurally in detail. Through these studies, it has been demonstrated that in native LF, only one LPS-binding site remains exposed due to its location being on the surface of the molecule. However, due to the generation of the lactosmart molecule, the second LPS-binding site gets exposed too. Since LPS is an essential and conserved part of the bacterial cell wall, the pro-inflammatory response in the human body caused by LPS can be targeted using the newly identified lactosmart. These findings highlight the immense potential of lactosmart in comparison to native LF in antimicrobial defense. We propose that lactosmart can be further developed as an antibacterial, antifungal, and antibiofilm agent.
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Affiliation(s)
- Jiya Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Viswanathan Vijayan
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Saiema Ahmedi
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Pradeep Pant
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
| | - Nikhat Manzoor
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Tej P. Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Pradeep Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Sujata Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
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24
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Wang Y, Morton JD, Bekhit AELDA, Carne A, Mason SL. Amino Acid Sequences of Lactoferrin from Red Deer ( Cervus elaphus) Milk and Antimicrobial Activity of Its Derived Peptides Lactoferricin and Lactoferrampin. Foods 2021; 10:1305. [PMID: 34200201 PMCID: PMC8228779 DOI: 10.3390/foods10061305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/30/2021] [Accepted: 06/01/2021] [Indexed: 11/16/2022] Open
Abstract
Although the bioactivities of bovine lactoferrin have been extensively investigated, little is known about deer milk lactoferrin bioactivity and its amino acid sequence. This research investigated the amino acid sequence of deer lactoferrin and the antimicrobial activities of two lactoferrin-encrypted peptides; lactoferricin (Lfcin) and lactoferrampin (Lfampin). Deer lactoferrin was found to have a molecular weight of 77.1 kDa and an isoelectric point of 7.99, which are similar to that of bovine lactoferrin, 78 kDa and pI 7.9. Deer lactoferrin contains 707 amino acids, one amino acid less than bovine lactoferrin, and has 92% homology with bovine lactoferrin. Deer lactoferricin exhibited strong antimicrobial activity against E. coli American Type Culture Collection (ATCC) 25922 and L. acidophilus ATCC 4356. The antimicrobial activities of deer and bovine Lfcin and Lfampin were compared. Based on MIC, deer Lfcin was found to be a more effective inhibitor of L. acidophilus ATCC 4356 than bovine Lfcin, but bovine Lfcin and Lfampin were more effective against E. coli ATCC 25922 than deer Lfcin and Lfampin. The deer Lfcin sequence differed at seven amino acids from bovine Lfcin and this decreased the net positive charge and increased the hydrophobicity. Deer Lfampin contained two differences in amino acid sequence compared to bovine Lfampin which decreased the net positive charge. These amino acid sequence differences likely account for differences in antibacterial activity. Positive charge and hydrophobic residues provide the amphipathic character of these helical peptides, and are considered important for binding of antimicrobial peptides. In silico modelling of deer Lfcin indicated an identical α-helical structure compared to bovine Lfcin.
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Affiliation(s)
- Ye Wang
- Department of Wine, Food and Molecular Biosciences, Lincoln University, P.O. Box 84, Lincoln 7674, New Zealand; (J.D.M.); (S.L.M.)
| | - James D. Morton
- Department of Wine, Food and Molecular Biosciences, Lincoln University, P.O. Box 84, Lincoln 7674, New Zealand; (J.D.M.); (S.L.M.)
| | - Alaa EL-Din A. Bekhit
- Department of Food Science, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand;
| | - Alan Carne
- Department of Biochemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand;
| | - Susan L. Mason
- Department of Wine, Food and Molecular Biosciences, Lincoln University, P.O. Box 84, Lincoln 7674, New Zealand; (J.D.M.); (S.L.M.)
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Nucera F, Lo Bello F, Shen SS, Ruggeri P, Coppolino I, Di Stefano A, Stellato C, Casolaro V, Hansbro PM, Adcock IM, Caramori G. Role of Atypical Chemokines and Chemokine Receptors Pathways in the Pathogenesis of COPD. Curr Med Chem 2021; 28:2577-2653. [PMID: 32819230 DOI: 10.2174/0929867327999200819145327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/11/2020] [Accepted: 06/18/2020] [Indexed: 11/22/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) represents a heightened inflammatory response in the lung generally resulting from tobacco smoking-induced recruitment and activation of inflammatory cells and/or activation of lower airway structural cells. Several mediators can modulate activation and recruitment of these cells, particularly those belonging to the chemokines (conventional and atypical) family. There is emerging evidence for complex roles of atypical chemokines and their receptors (such as high mobility group box 1 (HMGB1), antimicrobial peptides, receptor for advanced glycosylation end products (RAGE) or toll-like receptors (TLRs)) in the pathogenesis of COPD, both in the stable disease and during exacerbations. Modulators of these pathways represent potential novel therapies for COPD and many are now in preclinical development. Inhibition of only a single atypical chemokine or receptor may not block inflammatory processes because there is redundancy in this network. However, there are many animal studies that encourage studies for modulating the atypical chemokine network in COPD. Thus, few pharmaceutical companies maintain a significant interest in developing agents that target these molecules as potential antiinflammatory drugs. Antibody-based (biological) and small molecule drug (SMD)-based therapies targeting atypical chemokines and/or their receptors are mostly at the preclinical stage and their progression to clinical trials is eagerly awaited. These agents will most likely enhance our knowledge about the role of atypical chemokines in COPD pathophysiology and thereby improve COPD management.
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Affiliation(s)
- Francesco Nucera
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Federica Lo Bello
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Sj S Shen
- Faculty of Science, Centre for Inflammation, Centenary Institute, University of Technology, Ultimo, Sydney, Australia
| | - Paolo Ruggeri
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Irene Coppolino
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Antonino Di Stefano
- Division of Pneumology, Cyto- Immunopathology Laboratory of the Cardio-Respiratory System, Clinical Scientific Institutes Maugeri IRCCS, Veruno, Italy
| | - Cristiana Stellato
- Department of Medicine, Surgery and Dentistry, Salerno Medical School, University of Salerno, Salerno, Italy
| | - Vincenzo Casolaro
- Department of Medicine, Surgery and Dentistry, Salerno Medical School, University of Salerno, Salerno, Italy
| | - Phil M Hansbro
- Faculty of Science, Centre for Inflammation, Centenary Institute, University of Technology, Ultimo, Sydney, Australia
| | - Ian M Adcock
- Airway Disease Section, National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Gaetano Caramori
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
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Corona A, Vercelli A, Bruni N, Guidi E, Cornegliani L. In vitro activity of lactoferricin solution against Malassezia pachydermatis from otitis externa in dogs and cats. Vet Dermatol 2021; 32:316-e86. [PMID: 34009660 DOI: 10.1111/vde.12973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 01/02/2021] [Accepted: 02/13/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Malassezia pachydermatis is a commensal organism of the skin, yet it may induce dermatitis and/or otitis. Lactoferricin (Lfcin) is an antimicrobial peptide obtained by the pepsin-mediated digestion of lactoferrin, a multifunctional innate-defence milk protein. The antibacterial activity of Lfcin is thought to cause alteration of bacterial membrane permeability, thus inducing cell death. OBJECTIVES The aim of this study was to evaluate in vitro antifungal activity of different dilutions of Lfcin solution against M. pachydermatis strains isolated from ears of dogs and cats with otitis externa. METHODS AND MATERIALS Fifty clinical Malassezia isolates from 40 dogs and 10 cats were tested. A dilution method in microtitre plates was used starting with a 20% Lfcin water solution. The different dilutions were 2:1 (13.3%), 1:1 (10%), 1:2 (6.7%), 1:5 (3.3%) and 1:10 (1.8%). Results were expressed as the value at which the growth of 50% (minimal fungicidal concentration MFC50 ) and 90% (MFC90 ) of yeast cells was inhibited. RESULTS All strains showed susceptibility to 20% Lfcin solution (100%). With 1:5 and 1:10 dilutions corresponding to 3.3% and 1.8% Lfcin solutions, all strains showed resistance. The MFC50 and MFC90 values were observed at 13.3% and 20% Lfcin solutions. CONCLUSIONS AND CLINICAL RELEVANCE The results indicated that Lfcin solution exhibits the antimicrobial activity specific to antimicrobial peptides. In particular, the 20% solution can be effective in killing M. pachydermatis isolated strains. Some susceptibilities also are evident at lower concentrations of ≤6.7% for four strains.
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Affiliation(s)
- Antonio Corona
- Città di Torino" Veterinary Clinic, c.so Traiano 99/c, 10135 Turin, Italy
| | - Antonella Vercelli
- Città di Torino" Veterinary Clinic, c.so Traiano 99/c, 10135 Turin, Italy
| | - Natascia Bruni
- Pharmaceutical Institute "Candioli", Via Manzoni 2, 10092 Beinasco, Italy
| | - Eleonora Guidi
- Città di Torino" Veterinary Clinic, c.so Traiano 99/c, 10135 Turin, Italy
| | - Luisa Cornegliani
- Città di Torino" Veterinary Clinic, c.so Traiano 99/c, 10135 Turin, Italy
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Singh KS, Singh BP, Rokana N, Singh N, Kaur J, Singh A, Panwar H. Bio-therapeutics from human milk: prospects and perspectives. J Appl Microbiol 2021; 131:2669-2687. [PMID: 33740837 DOI: 10.1111/jam.15078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/10/2021] [Accepted: 03/06/2021] [Indexed: 12/12/2022]
Abstract
Human milk is elixir for neonates and is a rich source of nutrients and beneficial microbiota required for infant growth and development. Its benefits prompted research into probing the milk components and their use as prophylactic or therapeutic agents. Culture-independent estimation of milk microbiome and high-resolution identification of milk components provide information, but a holistic purview of these research domains is lacking. Here, we review the current research on bio-therapeutic components of milk and simplified future directions for its efficient usage. Publicly available databases such as PubMed and Google scholar were searched for keywords such as probiotics and prebiotics related to human milk, microbiome and milk oligosaccharides. This was further manually curated for inclusion and exclusion criteria relevant to human milk and clinical efficacy. The literature was classified into subgroups and then discussed in detail to facilitate understanding. Although milk research is still in infancy, it is clear that human milk has many functions including protection of infants by passive immunization through secreted antibodies, and transfer of immune regulators, cytokines and bioactive peptides. Unbiased estimates show that the human milk carries a complex community of microbiota which serves as the initial inoculum for establishment of infant gut. Our search effectively screened for evidence that shows that milk also harbours many types of prebiotics such as human milk oligosaccharides which encourage growth of beneficial probiotics. The milk also trains the naive immune system of the infant by supplying immune cells and stimulatory factors, thereby strengthening mucosal and systemic immune system. Our systematic review would improve understanding of human milk and the inherent complexity and diversity of human milk. The interrelated functional role of human milk components especially the oligosaccharides and microbiome has been discussed which plays important role in human health.
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Affiliation(s)
- K S Singh
- National Centre for Microbial Resource - National Centre for Cell Science, Pune, Maharashtra, India.,Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - B P Singh
- Department of Microbiology, School of Science, RK University, Rajkot, Gujarat, India
| | - N Rokana
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - N Singh
- Department of Biotechnology, Faculty of Engineering and Technology, Rama University, Uttar Pradesh, Kanpur, India
| | - J Kaur
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - A Singh
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - H Panwar
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
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Krupińska AM, Bogucki Z. Clinical aspects of the use of lactoferrin in dentistry. J Oral Biosci 2021; 63:129-133. [PMID: 33662566 DOI: 10.1016/j.job.2021.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/16/2021] [Accepted: 02/19/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Lactoferrin (Lf) is a natural iron-binding protein involved in coordinating specific and non-specific immune responses in humans. It exhibits broad spectrum antimicrobial properties against bacteria, viruses, and fungi. Owing to its high affinity for ferric (Fe+++) ions, Lf is responsible for controlling the oxidative stress in the body, and thus protects cells from oxygen injury. In addition, Lf is a natural immunomodulatory molecule that regulates the activity of the immune system. HIGHLIGHT Lactoferrin present in saliva plays an important role in maintaining oral hygiene. It exhibits protective function on mucosal surfaces, which constitute a barrier between the host and the external environment. Thus, Lf may be considered as the first line of defense protein that is associated with oral mucosal immunity. CONCLUSION Many studies indicate that lactoferrin supplementation is safe and beneficial for human health. The aim of this review is to discuss the effects of Lf on oral microflora, highlighting the potential significance of this protein in dental therapy and prevention of oral diseases.
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Affiliation(s)
- Anna M Krupińska
- Department and Division of Dental Prosthetics, Wroclaw Medical University, Wyb. Ludwika Pasteura 1, 50-367 Wrocław, Poland.
| | - Zdzisław Bogucki
- Department and Division of Dental Prosthetics, Wroclaw Medical University, Wyb. Ludwika Pasteura 1, 50-367 Wrocław, Poland
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El-Baky NA, Elkhawaga MA, Abdelkhalek ES, Sharaf MM, Redwan EM, Kholef HR. De novo expression and antibacterial potential of four lactoferricin peptides in cell-free protein synthesis system. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 29:e00583. [PMID: 33425692 PMCID: PMC7779732 DOI: 10.1016/j.btre.2020.e00583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 11/20/2022]
Abstract
For the first time, we produced four lactoferricin (LFcin) peptides by a cell-free (in vitro) method. These short antimicrobial peptides were expressed in an E. coli cell-free protein synthesis (CFPS) system and the bioactivity of the produced peptides was demonstrated. Additionally, we designed a novel synthetic consensus peptide (ConLFcin). The genes of bovine Lfcin (bLFcin), human Lfcin (hLFcin), camel Lfcin (cLFcin), and ConLFcin were cloned into pET101/D-TOPO vector then peptides were synthesized in vitro by E. coli CFPS system. The antibacterial activity of these synthesized peptides was evaluated against Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus (MRSA). The four cell-free synthesized peptides showed significant antibacterial potency at minimum inhibitory concentration (MIC) values between 1.25 and 10 μg/mL. cLFcin and ConLFcin showed higher antibacterial effects than bLFcin and hLFcin. Thus, cell-free expression system is an ideal system for rapid expression of functionally active short bioactive peptides.
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Key Words
- 3D, three dimensional structures
- Antimicrobial
- Bioactive peptides
- CAMH, cation-adjusted Mueller-Hinton broth
- CFPS, cell-free protein synthesis
- ConLFcin, consensus lactoferricin
- ELISA, enzyme-linked immunosorbent assay
- HSV, herpes simplex virus
- In vitro protein synthesis
- LC50, concentration lethal to 50 % of the cells
- LFcin, lactoferricin
- Lactoferricin
- Lactoferrin
- Lf, lactoferrin
- MIC, minimum inhibitory concentration
- MICs, minimum inhibitory concentrations
- MRSA, methicillin-resistant Staphylococcus aureus
- PBMCs, peripheral blood mononuclear cells
- SD, Shine-Dalgarno sequence
- SDS-PAGE, sodium dodecyl sulfate polyacrylamide gel electrophoresis
- bLFcin, bovine lactoferricin
- cLFcin, camel lactoferricin
- cLf, camel lactoferrin
- hLFcin, human lactoferricin
- hLf, human lactoferrin
- p-NPP, p-Nitrophenyl phosphate
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Affiliation(s)
- Nawal Abd El-Baky
- Therapeutic and Protective Proteins Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg EL-Arab, 21934, Alexandria, Egypt
| | - Maie Ahmed Elkhawaga
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | | | - Mona Mohammed Sharaf
- Therapeutic and Protective Proteins Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg EL-Arab, 21934, Alexandria, Egypt
| | - Elrashdy Mustafa Redwan
- Therapeutic and Protective Proteins Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg EL-Arab, 21934, Alexandria, Egypt
| | - Hoda Reda Kholef
- Therapeutic and Protective Proteins Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg EL-Arab, 21934, Alexandria, Egypt
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Wen P, Zhang W, Wang P, Zhang Y, Zhang W, Zhao Y, Guo H. Osteogenic effects of the peptide fraction derived from pepsin-hydrolyzed bovine lactoferrin. J Dairy Sci 2021; 104:3853-3862. [PMID: 33551166 DOI: 10.3168/jds.2020-19138] [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: 06/22/2020] [Accepted: 11/04/2020] [Indexed: 11/19/2022]
Abstract
Osteoporosis is a common disease that frequently occurs in the older population, particularly in postmenopausal women. It severely compromises the health of the older population, and the drugs commonly used to treat osteoporosis have a variety of adverse effects. Lactoferrin (LF) is a protein present in milk that has recently been found to exhibit osteogenic activity. Lactoferrin is nontoxic and harmless, suggesting that it may have excellent biocompatibility and tolerability after human consumption. Oral consumption of LF in an ovariectomized rat model has been found to ameliorate osteoporosis. However, the mechanism underlying this effect remains to be clarified. In this study, bovine LF (bLF) was first hydrolyzed by pepsin for 1 h, and the hydrolyzed mixture was freeze-dried and collected. The hydrolyzed mixture was then separated into 5 components (E1-E5), of which E3 had the greatest effect in promoting proliferation of osteoblasts (MC3T3-E1). Component E3 was further isolated into 21 components with preparative reversed phase HPLC, and the E3-15 component had maximal bioactivity. With HPLC-mass spectrometry and peptide sequencing, E3-15 was identified to contain amino acids 97 to 208 from the bLF N terminus. Then, E3-15 was divided into 6 different peptide segments (P1-P6), and the corresponding segments were generated by solid-phase synthesis. Only the P1 peptide (amino acids 97-122 from the N terminus of bLF) significantly promoted osteoblast proliferation. The bioactivity of P1 toward osteoblast cells and alkaline phosphatase activity were tested as a function of P1 concentration, and a nonlinear effect was observed.
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Affiliation(s)
- P Wen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - W Zhang
- Beijing Laboratory of Food Quality and Safety, Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - P Wang
- Beijing Laboratory of Food Quality and Safety, Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Y Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - W Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Y Zhao
- Department of Grain Science and Industry, Kansas State University, Manhattan 66506.
| | - H Guo
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; Beijing Laboratory of Food Quality and Safety, Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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31
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Ostan NKH, Moraes TF, Schryvers AB. Lactoferrin receptors in Gram-negative bacteria: an evolutionary perspective. Biochem Cell Biol 2021; 99:102-108. [PMID: 33464172 DOI: 10.1139/bcb-2020-0079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this short review, we outline the major events that led to the development of iron acquisition systems in Gram-negative bacteria and mammals since the beginning of life on earth. Naturally, the interaction between these organisms led to the development of a wonderfully complex set of protein systems used for competition over a once prevalent (but no longer) biocatalytic cofactor. These events led to the appearance of the lactoferrin gene, which has since been exploited into adopting countless new functions, including the provision of highly bactericidal degradation products. In parallel to lactoferrin's evolution, evolving bacterial receptors have countered the bactericidal properties of this innate immunity protein.
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Affiliation(s)
- Nicholas K H Ostan
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Trevor F Moraes
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Anthony B Schryvers
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
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32
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Cutone A, Ianiro G, Lepanto MS, Rosa L, Valenti P, Bonaccorsi di Patti MC, Musci G. Lactoferrin in the Prevention and Treatment of Intestinal Inflammatory Pathologies Associated with Colorectal Cancer Development. Cancers (Basel) 2020; 12:E3806. [PMID: 33348646 PMCID: PMC7766217 DOI: 10.3390/cancers12123806] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 12/20/2022] Open
Abstract
The connection between inflammation and cancer is well-established and supported by genetic, pharmacological and epidemiological data. The inflammatory bowel diseases (IBDs), including Crohn's disease and ulcerative colitis, have been described as important promoters for colorectal cancer development. Risk factors include environmental and food-borne mutagens, dysbalance of intestinal microbiome composition and chronic intestinal inflammation, with loss of intestinal epithelial barrier and enhanced cell proliferation rate. Therapies aimed at shutting down mucosal inflammatory response represent the foundation for IBDs treatment. However, when applied for long periods, they can alter the immune system and promote microbiome dysbiosis and carcinogenesis. Therefore, it is imperative to find new safe substances acting as both potent anti-inflammatory and anti-pathogen agents. Lactoferrin (Lf), an iron-binding glycoprotein essential in innate immunity, is generally recognized as safe and used as food supplement due to its multifunctionality. Lf possesses a wide range of immunomodulatory and anti-inflammatory properties against different aseptic and septic inflammatory pathologies, including IBDs. Moreover, Lf exerts anti-adhesive, anti-invasive and anti-survival activities against several microbial pathogens that colonize intestinal mucosa of IBDs patients. This review focuses on those activities of Lf potentially useful for the prevention/treatment of intestinal inflammatory pathologies associated with colorectal cancer development.
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Affiliation(s)
- Antimo Cutone
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy; (A.C.); (G.I.)
| | - Giusi Ianiro
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy; (A.C.); (G.I.)
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (M.S.L.); (L.R.); (P.V.)
| | - Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (M.S.L.); (L.R.); (P.V.)
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (M.S.L.); (L.R.); (P.V.)
| | | | - Giovanni Musci
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy; (A.C.); (G.I.)
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Zarzosa-Moreno D, Avalos-Gómez C, Ramírez-Texcalco LS, Torres-López E, Ramírez-Mondragón R, Hernández-Ramírez JO, Serrano-Luna J, de la Garza M. Lactoferrin and Its Derived Peptides: An Alternative for Combating Virulence Mechanisms Developed by Pathogens. Molecules 2020; 25:E5763. [PMID: 33302377 PMCID: PMC7762604 DOI: 10.3390/molecules25245763] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/16/2022] Open
Abstract
Due to the emergence of multidrug-resistant pathogens, it is necessary to develop options to fight infections caused by these agents. Lactoferrin (Lf) is a cationic nonheme multifunctional glycoprotein of the innate immune system of mammals that provides numerous benefits. Lf is bacteriostatic and/or bactericidal, can stimulate cell proliferation and differentiation, facilitate iron absorption, improve neural development and cognition, promote bone growth, prevent cancer and exert anti-inflammatory and immunoregulatory effects. Lactoferrin is present in colostrum and milk and is also produced by the secondary granules of polymorphonuclear leukocytes, which store this glycoprotein and release it at sites of infection. Lf is also present in many fluids and exocrine secretions, on the surfaces of the digestive, respiratory and reproductive systems that are commonly exposed to pathogens. Apo-Lf (an iron-free molecule) can be microbiostatic due to its ability to capture ferric iron, blocking the availability of host iron to pathogens. However, apo-Lf is mostly microbicidal via its interaction with the microbial surface, causing membrane damage and altering its permeability function. Lf can inhibit viral entry by binding to cell receptors or viral particles. Lf is also able to counter different important mechanisms evolved by microbial pathogens to infect and invade the host, such as adherence, colonization, invasion, production of biofilms and production of virulence factors such as proteases and toxins. Lf can also cause mitochondrial and caspase-dependent regulated cell death and apoptosis-like in pathogenic yeasts. All of these mechanisms are important targets for treatment with Lf. Holo-Lf (the iron-saturated molecule) can contain up to two ferric ions and can also be microbicidal against some pathogens. On the other hand, lactoferricins (Lfcins) are peptides derived from the N-terminus of Lf that are produced by proteolysis with pepsin under acidic conditions, and they cause similar effects on pathogens to those caused by the parental Lf. Synthetic analog peptides comprising the N-terminus Lf region similarly exhibit potent antimicrobial properties. Importantly, there are no reported pathogens that are resistant to Lf and Lfcins; in addition, Lf and Lfcins have shown a synergistic effect with antimicrobial and antiviral drugs. Due to the Lf properties being microbiostatic, microbicidal, anti-inflammatory and an immune modulator, it represents an excellent natural alternative either alone or as adjuvant in the combat to antibiotic multidrug-resistant bacteria and other pathogens. This review aimed to evaluate the data that appeared in the literature about the effects of Lf and its derived peptides on pathogenic bacteria, protozoa, fungi and viruses and how Lf and Lfcins inhibit the mechanisms developed by these pathogens to cause disease.
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Affiliation(s)
- Daniela Zarzosa-Moreno
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Zacatenco 07360, CdMx, Mexico; (D.Z.-M.); (C.A.-G.); (J.S.-L.)
| | - Christian Avalos-Gómez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Zacatenco 07360, CdMx, Mexico; (D.Z.-M.); (C.A.-G.); (J.S.-L.)
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (UNAM), Coyoacán 04510, CdMx, Mexico
| | - Luisa Sofía Ramírez-Texcalco
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Estado de México, Mexico; (L.S.R.-T.); (E.T.-L.); (R.R.-M.); (J.O.H.-R.)
| | - Erick Torres-López
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Estado de México, Mexico; (L.S.R.-T.); (E.T.-L.); (R.R.-M.); (J.O.H.-R.)
| | - Ricardo Ramírez-Mondragón
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Estado de México, Mexico; (L.S.R.-T.); (E.T.-L.); (R.R.-M.); (J.O.H.-R.)
| | - Juan Omar Hernández-Ramírez
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Estado de México, Mexico; (L.S.R.-T.); (E.T.-L.); (R.R.-M.); (J.O.H.-R.)
| | - Jesús Serrano-Luna
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Zacatenco 07360, CdMx, Mexico; (D.Z.-M.); (C.A.-G.); (J.S.-L.)
| | - Mireya de la Garza
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Zacatenco 07360, CdMx, Mexico; (D.Z.-M.); (C.A.-G.); (J.S.-L.)
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Secondary Structural Transformation of Bovine Lactoferricin Affects Its Antibacterial Activity. Probiotics Antimicrob Proteins 2020; 13:873-884. [PMID: 33188636 DOI: 10.1007/s12602-020-09726-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2020] [Indexed: 10/23/2022]
Abstract
Lactoferricin (Lfcin) is a potent antibacterial peptide derived from lactoferrin by pepsin hydrolysis. It was hypothesized that structural transformation of Lfcin could affect its antibacterial function through forming and breaking of intramolecular disulfide bond. To prove this hypothesis, bovine Lfcin (bLfcin) and its two derivatives, bLfcin with a disulfide bond (bLfcin DB) and bLfcin with a mutation C36G (bLfcin C36G), were synthesized, purified, and identified. The circular dichroism (CD) spectra of the peptides were detected in solutions with different ionic and hydrophobic strength. Then, the secondary structure contents of the peptides were calculated on the basis of the CD spectra. The antibacterial activity of the peptides against Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 14028, Shigella flexneri ATCC 12022, and Staphylococcus aureus ATCC 25923 was evaluated. The results showed that bLfcin and bLfcin C36G had similar percentages of secondary structure in water, while bLfcin and bLfcin DB had similar ratios of secondary structure under less hydrophobic conditions. The synthetic peptides exhibited antibacterial activity against all the tested bacteria, except for S. aureus ATCC 25923. bLfcin demonstrated higher antibacterial activity compared with its derivatives. The results suggested that bLfcin could transform its structure under alterative ionic strengths and hydrophobic conditions, and the transformation of structures was beneficial to enhancing the antibacterial function.
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Oh HY, Go HJ, Park NG. Identification and characterization of SaRpAMP, a 60S ribosomal protein L27-derived antimicrobial peptide from amur catfish, Silurus asotus. FISH & SHELLFISH IMMUNOLOGY 2020; 106:480-490. [PMID: 32711152 DOI: 10.1016/j.fsi.2020.06.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Aquatic freshwater fish like catfish, Silurus asotus, lives in microbe-rich environments, which enable this fish to develop necessary defense mechanisms. Antimicrobial peptides, along with other innate immune factors, are regarded as an important group in this defense. An antimicrobial peptide, which was isolated from the skin of S. asotus, was identified as a C-terminal fragment of 60S ribosomal protein L27 from S. asotus. The peptide was, then, designated Silurus asotus 60S ribosomal protein L27-derived antimicrobial peptide, SaRpAMP. Primary structure analyses and cDNA cloning revealed that SaRpAMP was 4185.36 Da and composed of 33 amino acids (AAs). Its precursor had a total of 136 AAs containing a pro-sequence of 103 AAs encoded by the nucleotide sequence of 512 bp that comprises a 5' untranslated region (UTR) of 32 bp, an open reading frame (ORF) of 411 bp, and a 3' UTR of 69 bp. Secondary structure analyses showed that SaRpAMP had two α-helices with turns and coils and an amphiphilic structure, a finding consistent with the 3D model of the peptide. SaRpAMP exhibited potent antibacterial activity comparable to piscidin 1, a powerful positive control. Its antimicrobial activity against fungus C. albicans was relatively weak. The antimicrobial activity of SaRpAMP was not diminished by heat treatment and changes in pH but was abolished by proteolytic enzyme digestion. Membrane permeability assays suggested that SaRpAMP interacts with both the outer and inner bacterial membranes. This was consistent with the results of lipid titration and quenching of Trp fluorescence that demonstrated SaRpAMP's interaction with acidic liposomes. Collectively, these findings suggest that the identified peptide, SaRpAMP, was the first antimicrobial peptide reported to be derived from the C-terminal region of 60S ribosomal protein L27. The findings also suggest that the action mechanism of SaRpAMP involved the interaction of the peptide with the bacterial membranes.
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Affiliation(s)
- Hye Young Oh
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea
| | - Hye-Jin Go
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea
| | - Nam Gyu Park
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea.
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Elzoghby AO, Abdelmoneem MA, Hassanin IA, Abd Elwakil MM, Elnaggar MA, Mokhtar S, Fang JY, Elkhodairy KA. Lactoferrin, a multi-functional glycoprotein: Active therapeutic, drug nanocarrier & targeting ligand. Biomaterials 2020; 263:120355. [PMID: 32932142 PMCID: PMC7480805 DOI: 10.1016/j.biomaterials.2020.120355] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/18/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
Abstract
Recent progress in protein-based nanomedicine, inspired by the success of Abraxane® albumin-paclitaxel nanoparticles, have resulted in novel therapeutics used for treatment of challenging diseases like cancer and viral infections. However, absence of specific drug targeting, poor pharmacokinetics, premature drug release, and off-target toxicity are still formidable challenges in the clinic. Therefore, alternative protein-based nanomedicines were developed to overcome those challenges. In this regard, lactoferrin (Lf), a glycoprotein of transferrin family, offers a promising biodegradable well tolerated material that could be exploited both as an active therapeutic and drug nanocarrier. This review highlights the major pharmacological actions of Lf including anti-cancer, antiviral, and immunomodulatory actions. Delivery technologies of Lf to improve its pries and enhance its efficacy were also reviewed. Moreover, different nano-engineering strategies used for fabrication of drug-loaded Lf nanocarriers were discussed. In addition, the use of Lf for functionalization of drug nanocarriers with emphasis on tumor-targeted drug delivery was illustrated. Besides its wide application in oncology nano-therapeutics, we discussed the recent advances of Lf-based nanocarriers as efficient platforms for delivery of anti-parkinsonian, anti-Alzheimer, anti-viral drugs, immunomodulatory and bone engineering applications.
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Affiliation(s)
- Ahmed O Elzoghby
- Center for Engineered Therapeutics, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA; Harvard-MIT Division of Health Sciences & Technology (HST), Cambridge, MA, 02139, USA; Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.
| | - Mona A Abdelmoneem
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Damanhur University, Damanhur, 22516, Egypt
| | - Islam A Hassanin
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria, 21526, Egypt
| | - Mahmoud M Abd Elwakil
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Laboratory of Innovative Nanomedicine, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Manar A Elnaggar
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Nanotechnology Program, School of Sciences & Engineering, The American University in Cairo (AUC), New Cairo, 11835, Egypt
| | - Sarah Mokhtar
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Jia-You Fang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Taoyuan, 333, Taiwan; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, 333, Taiwan
| | - Kadria A Elkhodairy
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
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Superti F. Lactoferrin from Bovine Milk: A Protective Companion for Life. Nutrients 2020; 12:nu12092562. [PMID: 32847014 PMCID: PMC7551115 DOI: 10.3390/nu12092562] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023] Open
Abstract
Lactoferrin (Lf), an iron-binding multifunctional glycoprotein belonging to the transferrin family, is present in most biological secretions and reaches particularly high concentrations in colostrum and breast milk. A key function of lactoferrin is non-immune defence and it is considered to be a mediator linking innate and adaptive immune responses. Lf from bovine milk (bLf), the main Lf used in human medicine because of its easy availability, has been designated by the United States Food and Drug Administration as a food additive that is generally recognized as safe (GRAS). Among the numerous protective activities exercised by this nutraceutical protein, the most important ones demonstrated after its oral administration are: Antianemic, anti-inflammatory, antimicrobial, immunomodulatory, antioxidant and anticancer activities. All these activities underline the significance in host defence of bLf, which represents an ideal nutraceutical product both for its economic production and for its tolerance after ingestion. The purpose of this review is to summarize the most important beneficial activities demonstrated following the oral administration of bLf, trying to identify potential perspectives on its prophylactic and therapeutic applications in the future.
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Affiliation(s)
- Fabiana Superti
- National Centre for Innovative Technologies in Public Health, National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
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Lactoferrin and lactoferricin B reduce adhesion and biofilm formation in the intestinal symbionts Bacteroides fragilis and Bacteroides thetaiotaomicron. Anaerobe 2020; 64:102232. [DOI: 10.1016/j.anaerobe.2020.102232] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 06/01/2020] [Accepted: 06/18/2020] [Indexed: 01/01/2023]
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Pammi M, Preidis GA, Tarnow-Mordi WO. Evidence from systematic reviews of randomized trials on enteral lactoferrin supplementation in preterm neonates. Biochem Cell Biol 2020; 99:20-24. [PMID: 32721215 DOI: 10.1139/bcb-2020-0136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In this commentary, we summarize the current evidence from randomized controlled trials on enteral lactoferrin supplementation in preterm neonates. Our recently completed systematic review includes 12 randomized controlled trials performed all over the world. Our meta-analysis suggests clinical benefit in decreasing late-onset sepsis, late-onset fungal sepsis, length of stay in the hospital and urinary tract infections. There were no adverse effects. There was no statistically significant decrease in necrotizing enterocolitis, mortality or neurodevelopmental impairment in lactoferrin supplemented preterm infants. There was significant statistical heterogeneity in the effects of lactoferrin on late-onset sepsis between larger and smaller studies, which may reflect either small study biases, differences in the effectiveness, dose or duration of supplemental lactoferrin products, or differences in underlying population risk, or any or all of these.
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Affiliation(s)
- Mohan Pammi
- Department of Pediatrics, Section of Neonatology, Baylor College of Medicine & Texas Children's Hospital, Houston, TX 77030, USA
| | - Geoffrey A Preidis
- Department of Pediatrics, Section of Gastroenterology, Hepatology & Nutrition, Baylor College of Medicine & Texas Children's Hospital, Houston, TX 77030, USA
| | - William O Tarnow-Mordi
- WINNER Centre for Newborn Research, NHMRC Clinical Trials Centre, University of Sydney, Camperdown, NSW 2050, Australia
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Carlson SK, Erickson DL, Wilson E. Staphylococcus aureus metal acquisition in the mastitic mammary gland. Microb Pathog 2020; 144:104179. [DOI: 10.1016/j.micpath.2020.104179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/23/2020] [Accepted: 03/27/2020] [Indexed: 12/28/2022]
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Walker LR, Marty MT. Revealing the Specificity of a Range of Antimicrobial Peptides in Lipid Nanodiscs by Native Mass Spectrometry. Biochemistry 2020; 59:2135-2142. [PMID: 32452672 DOI: 10.1021/acs.biochem.0c00335] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Antimicrobial peptides (AMPs) interact directly with lipid membranes of pathogens and may have the potential to combat antibiotic resistance. Although many AMPs are thought to form toxic oligomeric pores, their interactions within lipid membranes are not well understood. Here, we used native mass spectrometry to measure the incorporation of a range of different AMPs in lipoprotein nanodiscs. We found that the truncation of human LL37 increases the lipid specificity but decreases the specificity of complex formation. We also saw that the reduction of disulfide bonds can have a dramatic effect on the ability of AMPs to interact with lipid bilayers. Finally, by examining a wider range of peptides we discovered that AMPs tend to interact specifically with anionic lipids but form nonspecific complexes with wide oligomeric state distributions. Overall, these data reveal that each AMP has unique behaviors but some common trends apply to many AMPs.
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Pammi M, Suresh G. Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants. Cochrane Database Syst Rev 2020; 3:CD007137. [PMID: 32232984 PMCID: PMC7106972 DOI: 10.1002/14651858.cd007137.pub6] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Lactoferrin, a normal component of human colostrum and milk, can enhance host defenses and may be effective for prevention of sepsis and necrotizing enterocolitis (NEC) in preterm neonates. OBJECTIVES To assess the safety and effectiveness of lactoferrin supplementation to enteral feeds for prevention of sepsis and NEC in preterm neonates. Secondarily, we assessed the effects of lactoferrin supplementation to enteral feeds on the duration of positive-pressure ventilation, development of chronic lung disease (CLD) or periventricular leukomalacia (PVL), length of hospital stay to discharge among survivors, and adverse neurological outcomes at two years of age or later. SEARCH METHODS We used the standard search strategy of Cochrane Neonatal to update our search. We searched the Cochrane Central Register of Controlled Trials (CENTRAL 2019, Issue 9), MEDLINE via PubMed (1966 to 20 January 2020), PREMEDLINE (1996 to 20 January 2020), Embase (1980 to 20 January 2020), and CINAHL (1982 to 20 January 2020). We also searched clinical trials databases, conference proceedings, and the reference lists of retrieved articles for randomized controlled trials and quasi-randomized trials. SELECTION CRITERIA In our search, we included randomized controlled trials (RCTs) evaluating enteral lactoferrin supplementation at any dose or duration to prevent sepsis or NEC in preterm neonates. DATA COLLECTION AND ANALYSIS We used the standard methods of Cochrane Neonatal and the GRADE approach to assess the certainty of evidence. MAIN RESULTS Meta-analysis of data from twelve randomized controlled trials showed that lactoferrin supplementation to enteral feeds decreased late-onset sepsis (typical RR 0.82, 95% CI 0.74 to 0.91; typical RD -0.04, 95% CI, -0.06, -0.02; NNTB 25, 95% CI 17 to 50; 12 studies, 5425 participants, low-certainty evidence) and decreased length of hospital stay (MD -2.38, 95% CI, -4.67, -0.09; 3 studies, 1079 participants, low-certainty evidence). Sensitivity analysis including only good methodological certainty studies suggested a decrease in late-onset sepsis with enteral lactoferrin supplementation (typical RR 0.87, 95% CI, 0.78, 0.97; typical RD -0.03, 95% CI, -0.05, -0.0; 9 studies, 4702 participants, low-certainty evidence). There were no differences in NEC stage II or III (typical RR 1.10, 95% CI, 0.86, 1.41; typical RD -0.00, 95% CI, -0.02, 0.01; 7 studies, 4874 participants; low-certainty evidence) or 'all-cause mortality' (typical RR 0.90, 95% CI 0.69, 1.17; typical RD -0.00, 95% CI, -0.01, 0.01; 11 studies, 5510 participants; moderate-certainty evidence). One study reported no differences in neurodevelopmental testing by Mullen's or Bayley III at 24 months of age after enteral lactoferrin supplementation (one study, 292 participants, low-certainty evidence). Lactoferrin supplementation to enteral feeds with probiotics decreased late-onset sepsis (RR 0.25, 95% CI 0.14 to 0.46; RD -0.13, 95% CI -0.18 to -0.08; NNTB 8, 95% CI 6 to 13; 3 studies, 564 participants; low-certainty evidence) and NEC stage II or III (RR 0.04, 95% CI 0.00 to 0.62; RD -0.05, 95% CI -0.08 to -0.03; NNTB 20, 95% CI 12.5 to 33.3; 1 study, 496 participants; very low-certainty evidence), but not 'all-cause mortality' (very low-certainty evidence). Lactoferrin supplementation to enteral feeds with or without probiotics had no effect on CLD, duration of mechanical ventilation or threshold retinopathy of prematurity (low-certainty evidence). Investigators reported no adverse effects in the included studies. AUTHORS' CONCLUSIONS We found low-certainty evidence from studies of good methodological quality that lactoferrin supplementation of enteral feeds decreases late-onset sepsis but not NEC ≥ stage II or 'all cause mortality' or neurodevelopmental outcomes at 24 months of age in preterm infants without adverse effects. Low- to very low-certainty evidence suggests that lactoferrin supplementation of enteral feeds in combination with probiotics decreases late-onset sepsis and NEC ≥ stage II in preterm infants without adverse effects, however, there were few included studies of poor methodological quality. The presence of publication bias and small studies of poor methodology that may inflate the effect size make recommendations for clinical practice difficult.
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Affiliation(s)
- Mohan Pammi
- Baylor College of Medicine, Section of Neonatology, Department of Pediatrics, 6621, Fannin, MC.WT 6-104, Houston, Texas, USA, 77030
| | - Gautham Suresh
- Baylor College of Medicine, Section of Neonatology, Department of Pediatrics, 6621, Fannin, MC.WT 6-104, Houston, Texas, USA, 77030
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Cutone A, Rosa L, Ianiro G, Lepanto MS, Bonaccorsi di Patti MC, Valenti P, Musci G. Lactoferrin's Anti-Cancer Properties: Safety, Selectivity, and Wide Range of Action. Biomolecules 2020; 10:biom10030456. [PMID: 32183434 PMCID: PMC7175311 DOI: 10.3390/biom10030456] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 02/07/2023] Open
Abstract
Despite recent advances in cancer therapy, current treatments, including radiotherapy, chemotherapy, and immunotherapy, although beneficial, present attendant side effects and long-term sequelae, usually more or less affecting quality of life of the patients. Indeed, except for most of the immunotherapeutic agents, the complete lack of selectivity between normal and cancer cells for radio- and chemotherapy can make them potential antagonists of the host anti-cancer self-defense over time. Recently, the use of nutraceuticals as natural compounds corroborating anti-cancer standard therapy is emerging as a promising tool for their relative abundance, bioavailability, safety, low-cost effectiveness, and immuno-compatibility with the host. In this review, we outlined the anti-cancer properties of Lactoferrin (Lf), an iron-binding glycoprotein of the innate immune defense. Lf shows high bioavailability after oral administration, high selectivity toward cancer cells, and a wide range of molecular targets controlling tumor proliferation, survival, migration, invasion, and metastasization. Of note, Lf is able to promote or inhibit cell proliferation and migration depending on whether it acts upon normal or cancerous cells, respectively. Importantly, Lf administration is highly tolerated and does not present significant adverse effects. Moreover, Lf can prevent development or inhibit cancer growth by boosting adaptive immune response. Finally, Lf was recently found to be an ideal carrier for chemotherapeutics, even for the treatment of brain tumors due to its ability to cross the blood-brain barrier, thus globally appearing as a promising tool for cancer prevention and treatment, especially in combination therapies.
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Affiliation(s)
- Antimo Cutone
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy;
- Correspondence: (A.C.); (G.M.)
| | - Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (L.R.); (M.S.L.); (P.V.)
| | - Giusi Ianiro
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy;
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (L.R.); (M.S.L.); (P.V.)
| | | | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy; (L.R.); (M.S.L.); (P.V.)
| | - Giovanni Musci
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy;
- Correspondence: (A.C.); (G.M.)
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Antibacterial Activity of Trypsin-Hydrolyzed Camel and Cow Whey and Their Fractions. Animals (Basel) 2020; 10:ani10020337. [PMID: 32093356 PMCID: PMC7070643 DOI: 10.3390/ani10020337] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Camels are an important part of the ecosystem in desert areas. Camels can survive well under difficult conditions, therefore, they play a key role in local herdsmen’s production, life, and economic structure. China’s Inner Mongolia region has unique environmental and geographical advantages, making it suitable for camel breeding. Camel milk has high nutritional value and unique functional characteristics. It not only has low sensitization, but also contains various immune active factors with high medicinal value. Currently, there are various products derived from cow and goat milk, but few related to camel milk, providing an opportunity for development. This study used trypsin to hydrolyze the whey proteins of camel milk, separated and purified peptide fragments with antibacterial activity, and conducted a comparative study with cow milk. The present study provided new ideas for the use and development of camel whey protein hydrolysates and their dextran purification fractions, and indicated the future development of these peptides as nutritional additives or food preservatives. Abstract Antibacterial peptides were isolated and purified from whey proteins of camel milk (CaW) and cow milk (CoW) and their antimicrobial activities were studied. The whey proteins were hydrolyzed using trypsin, and the degree of hydrolysis was identified by gel electrophoresis. The whey hydrolysate (WH) was purified using ultrafiltration and Dextran gel chromatography to obtain small peptides with antibacterial activity. The effect of the antimicrobial peptides on the morphology of bacterial strains was investigated using transmission electron microscopy. Their amino acid composition and antimicrobial activities were then determined. Polypeptides CaWH-III (<3 kDa) and CoWH-III (<3 kDa) had the strongest antibacterial activity. Both Fr.A2 (CaWH-Ⅲ’s fraction 2) and Fr.B1 (CoWH-Ⅲ’s fraction 1) had antibacterial effects toward Escherichia coli and Staphylococcus aureus, with minimum antimicrobial mass concentrations of 65 mg/mL and 130 mg/mL for Fr.A2, and 130 mg/mL and 130 mg/mL for Fr.B1, respectively. The highly active antimicrobial peptides had high amounts of alkaline amino acids (28.13% in camel milk Fr.A2 and 25.07% in the cow milk Fr.B1) and hydrophobic amino acids. (51.29% in camel milk Fr.A2 and 57.69% in the cow milk Fr.B1). This results showed that hydrolysis of CaW and CoW using trypsin produced a variety of effective antimicrobial peptides against selected pathogens, and the antibacterial activity of camel milk whey was slightly higher than that of cow milk whey.
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Asztalos EV, Barrington K, Lodha A, Tarnow-Mordi W, Martin A. Lactoferrin infant feeding trial_Canada (LIFT_Canada): protocol for a randomized trial of adding lactoferrin to feeds of very-low-birth-weight preterm infants. BMC Pediatr 2020; 20:40. [PMID: 31996186 PMCID: PMC6988327 DOI: 10.1186/s12887-020-1938-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/22/2020] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND In Canada alone, almost 3000 VLBW infants are born and treated annually with almost 1200 going onto death or survival with severe brain injury, chronic lung disorders, aggressive retinopathy of prematurity, late-onset sepsis, or significant necrotizing enterocolitis. Lactoferrin is an antimicrobial, antioxidant, anti-inflammatory iron-carrying, bifidogenic glycoprotein found in all vertebrates and in mammalian milk, leukocytes and exocrine secretions. Lactoferrin aids in creating an environment for growth of beneficial bacteria in the gut, thus reducing colonization with pathogenic bacteria. It is hypothesized that oral bovine lactoferrin (bLF), through its antimicrobial, antioxidant and anti-inflammatory properties, will reduce the rate of mortality or major morbidity in very low birth weight preterm infants. METHOD Lactoferrin Infant Feeding Trial_Canada (LIFT_Canada) is a multi-centre, double-masked, randomized controlled trial with the aim to enroll 500 infants whose data will be combined with the data of the 1542 infants enrolled from Lactoferrin Infant Feeding Trial_Australia/New Zealand (LIFT_ANZ) in a pooled intention-to-treat analysis. Eligible infants will be randomized and allocated to one of two treatment groups: 1) a daily dose of 200 mg/kg bLF in breast/donor human milk or formula milk until 34 weeks corrected gestation or for a minimum of 2 weeks, whichever is longer, or until discharge home or transfer, if earlier; 2) no bLF with daily feeds. The primary outcome will be determined at 36 weeks corrected gestation for the presence of neonatal morbidity and at discharge for survival and treated retinopathy of prematurity. The duration of the trial is expected to be 36 months. DISCUSSION Currently, there continues to be no clear answer related to the benefit of bLF in reducing mortality or any or all of the significant neonatal morbidities in very low birth weight infants. LIFT_Canada is designed with the hope that the pooled results from Australia, New Zealand, and Canada may help to clarify the situation. TRIAL REGISTRATION Clinical Trials.Gov, Identifier: NCT03367013, Registered December 8, 2017.
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MESH Headings
- Female
- Humans
- Infant, Newborn
- Male
- Anti-Infective Agents/administration & dosage
- Brain Injuries/epidemiology
- Brain Injuries/prevention & control
- Canada
- Cerebral Palsy/epidemiology
- Double-Blind Method
- Enteral Nutrition
- Enterocolitis, Necrotizing/prevention & control
- Hospital Mortality
- Infant Formula
- Infant, Premature
- Infant, Premature, Diseases/epidemiology
- Infant, Premature, Diseases/mortality
- Infant, Premature, Diseases/prevention & control
- Infant, Very Low Birth Weight
- Intention to Treat Analysis
- Lactoferrin/administration & dosage
- Milk, Human
- Sepsis/prevention & control
- Randomized Controlled Trials as Topic
- Multicenter Studies as Topic
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Affiliation(s)
- Elizabeth V Asztalos
- Department of Newborn and Developmental Paediatrics, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, M4-230, 2075 Bayview Ave., Toronto, ON, M4N 3M5, Canada.
| | - Keith Barrington
- Department of Pediatrics, Université de Montréal, Montréal, PQ, Canada
| | - Abhay Lodha
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | | | - Andrew Martin
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
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Ardila-Chantré N, Hernández-Cardona AK, Pineda-Castañeda HM, Estupiñan-Torres SM, Leal-Castro AL, Fierro-Medina R, Rivera-Monroy ZJ, García-Castañeda JE. Short peptides conjugated to non-peptidic motifs exhibit antibacterial activity. RSC Adv 2020; 10:29580-29586. [PMID: 35521126 PMCID: PMC9055962 DOI: 10.1039/d0ra05937d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/30/2020] [Indexed: 11/21/2022] Open
Abstract
Short peptides derived from buforin and lactoferricin B were conjugated with other antimicrobial molecules of different chemical natures.
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Harouna S, Franco I, Carramiñana JJ, Blázquez A, Abad I, Pérez MD, Calvo M, Sánchez L. Effect of hydrolysis and microwave treatment on the antibacterial activity of native bovine milk lactoferrin against Cronobacter sakazakii. Int J Food Microbiol 2019; 319:108495. [PMID: 31911211 DOI: 10.1016/j.ijfoodmicro.2019.108495] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 01/19/2023]
Abstract
Bovine lactoferrin (bLF) is an iron-binding glycoprotein used in functional and therapeutic products due to its biological properties, the most important being its antimicrobial activity. In this study, hydrolysates of bovine lactoferrin (bLFH) obtained with pepsin, chymosin and microbial rennet were assayed against Cronobacter sakazakii (104 CFU/mL) in different media: phosphate buffered saline (PBS), bovine skim milk and whey, and reconstituted powdered infant formula (PIFM). The results obtained have shown that hydrolysis of bLF enhances its antibacterial activity against C. sakazakii. The three types of bLFH dissolved in PBS reduced C. sakazakii growth from a concentration of 0.1 mg/mL and inhibited it completely above 0.5 mg/mL, after 4 and 8 h of incubation at 37 °C. The three bLFH (1 and 2 mg/mL) did not show any antibacterial activity in skim milk, whey and reconstituted PIFM after 8 h of incubation at 37 °C. However, C. sakazakii growth was completely inhibited in whey when pepsin and chymosin bLFH (2 mg/mL) were combined with undigested bLF (2 mg/mL), after 8 h of incubation at 37 °C. On the other hand, the combination of any of the three hydrolysates with bLF showed very low activity in skim milk and practically no activity in reconstituted PIFM. Furthermore, the effect of temperature after reconstitution (4, 23 and 37 °C), on the antibacterial activity of bLF (2.5 and 5 mg/mL) in reconstituted PIFM contaminated with C. sakazakii (10-102 CFU/mL) was also investigated. bLF at 5 mg/mL significantly reduced (p < .05) the proliferation of C. sakazakii in reconstituted PIFM at 37 °C until 2 h. C. sakazakii did not grow at 4 °C for 6 days in reconstituted PIFM with or without bLF. The effect of microwave heating (450, 550 and 650 W for 5, 10 and 15 s) on the antibacterial activity and stability of bLF (2.5 mg/mL) in reconstituted PIFM contaminated with C. sakazakii (10-102 CFU/mL) was also studied. The antibacterial activity of bLF was maintained after treatments at 450 and 550 W for 5 s, which kept 94 and 89% of bLF immunoreactivity, respectively. Moreover, microwave treatments of reconstituted PIFM with or without bLF, at 650 W for 5 s, and at 450, 550 and 650 W for 10 and 15 s, completely inactivated C. sakazakii.
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Affiliation(s)
- Saidou Harouna
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Indira Franco
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain; Departamento de Ciencias Naturales, Facultad de Ciencias y Tecnología, Universidad Tecnológica de Panamá, Campus Metropolitano Víctor Levi Sasso, Panamá, Panamá
| | - Juan J Carramiñana
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Arturo Blázquez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Inés Abad
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - María D Pérez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Miguel Calvo
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Lourdes Sánchez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, Zaragoza, Spain.
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Kühnle A, Galuska CE, Zlatina K, Galuska SP. The Bovine Antimicrobial Peptide Lactoferricin Interacts with Polysialic Acid without Loss of Its Antimicrobial Activity against Escherichia coli. Animals (Basel) 2019; 10:E1. [PMID: 31861263 PMCID: PMC7022438 DOI: 10.3390/ani10010001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/09/2019] [Accepted: 12/15/2019] [Indexed: 01/28/2023] Open
Abstract
The lactoferrin-derived peptide lactoferricin (LFcin) belongs to the family of antimicrobial peptides, and its bovine form has already been successfully applied to counteract enterohemorrhagic Escherichia coli (EHEC) infection. Recently, it was described that LFcin interacts with the sugar polymer polysialic acid (polySia) and that the binding of lactoferrin to polySia is mediated by LFcin, included in the N-terminal domain of lactoferrin. For this reason, the impact of polySia on the antimicrobial activity of bovine LFcin was investigated. Initially, the interaction of LFcin was characterized in more detail by native agarose gel electrophoresis, demonstrating that a chain length of 10 sialic acid residues was necessary to bind LFcin, whereas approximately twice-as-long chains were needed to detect binding of lactoferrin. Remarkably, the binding of polySia showed, independently of the chain length, no impact on the antimicrobial effects of LFcin. Thus, LFcin binds polySia without loss of its protective activity as an antimicrobial peptide.
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Affiliation(s)
- Andrea Kühnle
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany; (A.K.); (C.E.G.); (K.Z.)
- Institute of Biochemistry, Faculty of Medicine, Justus-Liebig-University, Friedrichstr. 24, 35392 Giessen, Germany
| | - Christina E. Galuska
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany; (A.K.); (C.E.G.); (K.Z.)
- Institute of Biochemistry, Faculty of Medicine, Justus-Liebig-University, Friedrichstr. 24, 35392 Giessen, Germany
| | - Kristina Zlatina
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany; (A.K.); (C.E.G.); (K.Z.)
| | - Sebastian P. Galuska
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany; (A.K.); (C.E.G.); (K.Z.)
- Institute of Biochemistry, Faculty of Medicine, Justus-Liebig-University, Friedrichstr. 24, 35392 Giessen, Germany
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Lee BC, Hung CW, Lin CY, Shih CH, Tsai HJ. Oral administration of transgenic biosafe microorganism containing antimicrobial peptide enhances the survival of tilapia fry infected bacterial pathogen. FISH & SHELLFISH IMMUNOLOGY 2019; 95:606-616. [PMID: 31682999 DOI: 10.1016/j.fsi.2019.10.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/16/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
To develop an alternative to conventional antibiotics used in the aquaculture and livestock industries, we employed Bacillus subtilis, considered a biosafe microorganism, to express the degradable antimicrobial peptide lactoferricin. An expression plasmid pP43-6LFBII-GFP, in which reporter GFP cDNA was fused downstream of lactoferricin cDNA driven by an endogenous constitutive P43 promoter was electroporated into B. subtilis, followed by regeneration and cultivation. The putative colonies harboring plasmids were primarily screened by PCR-amplification of lactoferricin cDNA. Four transformants which were stable inheritance of plasmid containing lactoferricin cDNA included strains T1, T4, T7 and T13. Based on Western blot and Southern blot analyses, we found that transgenic strains T1 and T13 not only highly expressed exogenous recombinant lactoferricin, but also exhibited more stable inheritance of plasmids with 931 and 647 copies per cell, respectively. In the antibacterial in vitro experiment, the bactericidal activity of each microliter of cell lysate from transgenic strains T1 and T13 (5 × 108 CFU) for Escherichia coli was equivalent to 56 and 53 ng of Ampicillin dosage, respectively, while for Staphylococcus epidermidis, the equivalency T1 and T13 was 154 and 130 ng of Ampicillin dosage, respectively. Equivalencies of bacterial activity for Vibrio parahaemolyticus and Edwardsiella tarda followed suit. In the antibacterial in vivo experiment, we oral-in-tube fed tilapia fry (Oreochromis mossambicus X O. niloticus) with cell lysate from transgenic strain T1 and T13 individually. After 1-h of incubation, we immersed these treated fish fry in a water tank containing E. tarda (5 × 1011 CFU) for a 5-hr bacterial challenge. After one month cultivation, an average survival rate of 63 and 67% was observed after having fed the fish fry with transgenic strains T1 and T13, respectively. However, the average survival rate of fish fry fed with B. subtilis WT strain and transgenic strain T19 without expressing recombinant lactoferricin reached only 5 and 9%, respectively. These data indicate that the survival of fish fry infected by the intestinal pathogen tested could be significantly enhanced by feeding transgenic B. subtilis containing antibacterial peptide. Therefore, we suggest that this strategy could be applied to both aquaculture and livestock industries to (i) reduce the dependency on conventional antibiotics during seasonal outbreaks and (ii) eliminate the problem of antibiotic resistance.
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Affiliation(s)
- Bing-Chang Lee
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan, ROC
| | - Chun-Wei Hung
- Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, Taiwan, ROC
| | - Cheng-Yung Lin
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan, ROC
| | - Chen-Han Shih
- Department of Biosystems Engineering, The University of Arizona, Tucson, AZ, USA
| | - Huai-Jen Tsai
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan, ROC.
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Tahmoorespur M, Azghandi M, Javadmanesh A, Meshkat Z, Sekhavati MH. A Novel Chimeric Anti-HCV Peptide Derived from Camel Lactoferrin and Molecular Level Insight on Its Interaction with E2. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09972-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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