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Dyrda-Terniuk T, Pomastowski P. Impact of Ultrafiltration on the Physicochemical Properties of Bovine Lactoferrin: Insights into Molecular Mass, Surface Morphology, and Elemental Composition. J Dairy Sci 2024:S0022-0302(24)01048-8. [PMID: 39098494 DOI: 10.3168/jds.2024-24933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/10/2024] [Indexed: 08/06/2024]
Abstract
The large-scale isolation of bovine lactoferrin (bLF) typically involves using large amounts of concentrated eluents, which might introduce impurities to the final product. Sometimes, protein pre-concentration is required for the greater accuracy of experimental results. In this research, the supplied bLF sample was subjected to additional ultrafiltration (UF) to eliminate possible small impurities, such as salts and peptides of bLF. Beforehand, the basic characterization of native bLF, including surface-charge properties and the structural sensitivity to the various pH conditions, was performed. The study aimed to evaluate the difference in molecular mass, primary structure, surface morphology, and elemental composition of the protein before and after UF. The research was provided by application of spectroscopic, spectrometric, electrophoretic, and microscopic techniques. The evident changes in the surface morphology of bLF were observed after UF, while the molecular masses of both proteins were comparable. According to MALDI-TOF/MS results, UF had a positive impact on the bLF sample representation, improving the identification parameters, such as sequence coverage and intensity coverage.
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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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2
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Vishwanath-Deutsch R, Dallas DC, Besada-Lombana P, Katz L, Conze D, Kruger C, Clark AJ, Peterson R, Malinczak CA. A review of the safety evidence on recombinant human lactoferrin for use as a food ingredient. Food Chem Toxicol 2024; 189:114727. [PMID: 38735359 DOI: 10.1016/j.fct.2024.114727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Published studies on the glycosylation, absorption, distribution, metabolism, excretion, and safety outcomes of orally ingested recombinant human lactoferrin (rhLF) were reviewed in the context of unanswered safety questions, including alloimmunization, allergenicity, and immunotoxicity potential of rhLF during repeated exposure. The primary objective was to summarize current safety data of rhLF produced in transgenic host expression systems. Overall, results from animal and human studies showed that rhLF was well tolerated and safe. Animal data showed no significant toxicity-related outcomes among any safety or tolerability endpoints. The no observed adverse effect levels (NOAEL) were at the highest level tested in both iron-desaturated and -saturated forms of rhLF. Although one study reported outcomes of rhLF on immune parameters, no animal studies directly assessed immunogenicity or immunotoxicity from a safety perspective. Data from human studies were primarily reported as adverse events (AE). They showed no or fewer rhLF-related AE compared to control and no evidence of toxicity, dose-limiting toxicities, or changes in iron status in various subpopulations. However, no human studies evaluated the immunomodulatory potential of rhLF as a measure of safety. Following this review, a roadmap outlining preclinical and clinical studies with relevant safety endpoints was developed to address the unanswered safety questions.
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Affiliation(s)
| | - David C Dallas
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, and Department of Food Science and Technology, Oregon State University, Corvallis, OR, USA.
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3
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Gori A, Brindisi G, Daglia M, del Giudice MM, Dinardo G, Di Minno A, Drago L, Indolfi C, Naso M, Trincianti C, Tondina E, Brunese FP, Ullah H, Varricchio A, Ciprandi G, Zicari AM. Exploring the Role of Lactoferrin in Managing Allergic Airway Diseases among Children: Unrevealing a Potential Breakthrough. Nutrients 2024; 16:1906. [PMID: 38931261 PMCID: PMC11206375 DOI: 10.3390/nu16121906] [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: 05/01/2024] [Revised: 06/08/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024] Open
Abstract
The prevalence of allergic diseases has dramatically increased among children in recent decades. These conditions significantly impact the quality of life of allergic children and their families. Lactoferrin, a multifunctional glycoprotein found in various biological fluids, is emerging as a promising immunomodulatory agent that can potentially alleviate allergic diseases in children. Lactoferrin's multifaceted properties make it a compelling candidate for managing these conditions. Firstly, lactoferrin exhibits potent anti-inflammatory and antioxidant activities, which can mitigate the chronic inflammation characteristic of allergic diseases. Secondly, its iron-binding capabilities may help regulate the iron balance in allergic children, potentially influencing the severity of their symptoms. Lactoferrin also demonstrates antimicrobial properties, making it beneficial in preventing secondary infections often associated with respiratory allergies. Furthermore, its ability to modulate the immune response and regulate inflammatory pathways suggests its potential as an immune-balancing agent. This review of the current literature emphasises the need for further research to elucidate the precise roles of lactoferrin in allergic diseases. Harnessing the immunomodulatory potential of lactoferrin could provide a novel add-on approach to managing allergic diseases in children, offering hope for improved outcomes and an enhanced quality of life for paediatric patients and their families. As lactoferrin continues to capture the attention of researchers, its properties and diverse applications make it an intriguing subject of study with a rich history and a promising future.
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Affiliation(s)
- Alessandra Gori
- Department of Mother-Child, Urological Science, Sapienza University of Rome, 00161 Rome, Italy; (A.G.); (G.B.)
| | - Giulia Brindisi
- Department of Mother-Child, Urological Science, Sapienza University of Rome, 00161 Rome, Italy; (A.G.); (G.B.)
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (M.D.); (A.D.M.); (H.U.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Michele Miraglia del Giudice
- Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.M.d.G.); (G.D.); (C.I.)
| | - Giulio Dinardo
- Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.M.d.G.); (G.D.); (C.I.)
| | - Alessandro Di Minno
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (M.D.); (A.D.M.); (H.U.)
- CEINGE-Biotecnologie Avanzate, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Lorenzo Drago
- Laboratory of Clinical Microbiology & Microbiome, Department of Biomedical Sciences for Health, University of Milan, 20122 Milan, Italy;
- UOC Laboratory of Clinical Medicine, MultiLab Department, IRCCS Multimedica, 20138 Milan, Italy
| | - Cristiana Indolfi
- Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.M.d.G.); (G.D.); (C.I.)
| | - Matteo Naso
- Allergy Center, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (M.N.); (C.T.)
| | - Chiara Trincianti
- Allergy Center, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (M.N.); (C.T.)
| | - Enrico Tondina
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | | | - Hammad Ullah
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (M.D.); (A.D.M.); (H.U.)
| | - Attilio Varricchio
- Department of Otolaryngology, University of Molise, 86100 Campobasso, Italy;
| | - Giorgio Ciprandi
- Allergy Clinic, Casa di Cura Villa Montallegro, 16145 Genoa, Italy;
| | - Anna Maria Zicari
- Department of Mother-Child, Urological Science, Sapienza University of Rome, 00161 Rome, Italy; (A.G.); (G.B.)
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Hettinga K, Pellis L, Rombouts W, Du X, Grigorean G, Lönnerdal B. Effect of pH and protein composition on proteolysis of goat milk proteins by pepsin and pancreatin. Food Res Int 2023; 173:113294. [PMID: 37803606 DOI: 10.1016/j.foodres.2023.113294] [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: 02/07/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 10/08/2023]
Abstract
The roles of protein composition, pH and enzymes in goat milk protein hydrolysis is still unclear and the proteolysis of low abundant goat milk proteins has received limited attention. The aim of this study was to study the impact of protein composition and proteolytic conditions on goat milk protein hydrolysis in a simplified digestion model. Both whole milk and infant formula were hydrolyzed at pH 2 and 4, using pepsin as well as pepsin combined with pancreatin. Intact proteins were separated from digests using spin filters, followed by bottom-up proteomics of the separated proteins. Results show that under all conditions, caseins are hydrolyzed quickly. Goat casein hydrolysis in infant formula was slightly faster than in goat whole milk, possibly due to less casein coagulation during pepsin hydrolysis at both pH 2 and 4. Several low abundant immunoactive goat milk proteins, especially immunoglobulins, GLYCAM-1 and osteopontin, resisted proteolysis more than high abundant proteins, independent of the pH and enzyme used for hydrolysis. Fast hydrolysis of casein and slow hydrolysis of immunoactive proteins may indicate a good balance between protein utilization and protection of the infant by goat milk proteins.
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Affiliation(s)
- Kasper Hettinga
- Dairy Science and Technology, Food Quality & Design Group, Wageningen University, 6708WG Wageningen, the Netherlands.
| | | | | | - Xiaogu Du
- University of California, Department of Nutrition, Davis, CA 95616, USA
| | | | - Bo Lönnerdal
- University of California, Department of Nutrition, Davis, CA 95616, USA
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Ostrówka M, Duda-Madej A, Pietluch F, Mackiewicz P, Gagat P. Testing Antimicrobial Properties of Human Lactoferrin-Derived Fragments. Int J Mol Sci 2023; 24:10529. [PMID: 37445717 DOI: 10.3390/ijms241310529] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Lactoferrin, an iron-binding glycoprotein, plays a significant role in the innate immune system, with antibacterial, antivirial, antifungal, anticancer, antioxidant and immunomodulatory functions reported. It is worth emphasizing that not only the whole protein but also its derived fragments possess antimicrobial peptide (AMP) activity. Using AmpGram, a top-performing AMP classifier, we generated three novel human lactoferrin (hLF) fragments: hLF 397-412, hLF 448-464 and hLF 668-683, predicted with high probability as AMPs. For comparative studies, we included hLF 1-11, previously confirmed to kill some bacteria. With the four peptides, we treated three Gram-negative and three Gram-positive bacterial strains. Our results indicate that none of the three new lactoferrin fragments have antimicrobial properties for the bacteria tested, but hLF 1-11 was lethal against Pseudomonas aeruginosa. The addition of serine protease inhibitors with the hLF fragments did not enhance their activity, except for hLF 1-11 against P. aeruginosa, which MIC dropped from 128 to 64 µg/mL. Furthermore, we investigated the impact of EDTA with/without serine protease inhibitors and the hLF peptides on selected bacteria. We stress the importance of reporting non-AMP sequences for the development of next-generation AMP prediction models, which suffer from the lack of experimentally validated negative dataset for training and benchmarking.
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Affiliation(s)
- Michał Ostrówka
- Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-137 Wrocław, Poland
| | - Anna Duda-Madej
- Department of Microbiology, Faculty of Medicine, Wrocław Medical University, Chałubińskiego 4, 50-368 Wrocław, Poland
| | - Filip Pietluch
- Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-137 Wrocław, Poland
| | - Paweł Mackiewicz
- Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-137 Wrocław, Poland
| | - Przemysław Gagat
- Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-137 Wrocław, Poland
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Lu J, Zhang W, Ma C, Pang X, Dai Y, Zhu T, Liu J, Xing L, Zhang S, Lv J. Changes in glycosylated proteins in colostrum and mature milk and their implication. Front Nutr 2023; 10:1161310. [PMID: 37396121 PMCID: PMC10311556 DOI: 10.3389/fnut.2023.1161310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction Glycosylation is one of the essential post-translational modifications that influences the function of milk proteins. Methods In the present study, 998 proteins and 764 glycosylated sites from 402 glycoproteins were identified in human milk by TMT labeling proteomics. Compared to human milk proteins, the glycoproteins were mainly enriched in cell adhesion, proteolysis, and defense/immune process. Results The abundance of 353 glycosylated sites and their 179 parent proteins was quantified. After normalization to their parent protein's abundance, 78 glycosylated sites in 56 glycoproteins and 10 glycosylated sites in 10 glycoproteins were significantly higher in colostrum and mature milk, respectively. These changed glycoproteins were mainly related to host defense. Intriguingly, one glycosylated site (Asp144) in IgA and two glycosylated sites (Asp38 and Asp1079) in tenascin are significantly upregulated even though their protein abundance was downregulated during lactation. Discussion This study helps us figure out the critical glycosylated sites in proteins that might influence their biological function in an unbiased way.
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Affiliation(s)
- Jing Lu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Wenyuan Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Science, Beijing, China
| | - Changlu Ma
- Department of Food and Bio-Engineering, Beijing Vocational College of Agriculture, Beijing, China
| | - Xiaoyang Pang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Science, Beijing, China
| | - Ying Dai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Tong Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Jinqi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Lina Xing
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Shuwen Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Science, Beijing, China
| | - Jiaping Lv
- Institute of Food Science and Technology, Chinese Academy of Agricultural Science, Beijing, China
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7
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Nanosecond pulsed electric field treatment of human milk: Effects on microbiological inactivation, whey proteome and bioactive protein. Food Chem 2023; 406:135073. [PMID: 36455315 DOI: 10.1016/j.foodchem.2022.135073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
In the current study, nanosecond pulsed electric field (nsPEF) was investigated at lab-scale to optimise processing conditions of donor human milk to reduce bacterial counts, and to evaluate its effect on the bioactive proteins in human milk. Response surface methodology was utilized to optimise critical processing parameters. Two optimal nsPEF processing conditions were validated: 15 kV voltage, 6000 pulses at 20 Hz frequency, and 15 kV voltage, 6000 pulses at 50 Hz frequency. Compared to raw human milk, nsPEF processed milk had over 60 % retention of lysozyme, lactoperoxidase and lactoferrin, and 100 % retention of xanthine oxidase and immunoglobulin A. The contents of the five proteins were significantly higher after nsPEF processing when compared with Holder pasteurization. Liquid chromatography-mass spectrometry analysis showed that loss of milk proteins was smaller for samples treated with nsPEF than Holder pasteurization. These results indicated that nsPEF is a promising novel pasteurization method.
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8
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Li W, Liu B, Lin Y, Xue P, Lu Y, Song S, Li Y, Szeto IMY, Ren F, Guo H. The application of lactoferrin in infant formula: The past, present and future. Crit Rev Food Sci Nutr 2022; 64:5748-5767. [PMID: 36533432 DOI: 10.1080/10408398.2022.2157792] [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] [Indexed: 12/23/2022]
Abstract
Human milk is universally regarded as the gold standard to fulfill nutrition needs of infants. Lactoferrin (LF) is a major multiple bioactive glycoprotein in human milk but little is presented in infant formula. LF can resist digestion in the infant gastrointestinal tract and is absorbed into the bloodstream in an intact form to perform physiological functions. Evidence suggest that LF prevents pathogen infection, promotes immune system development, intestinal development, brain development and bone health, as well as ameliorates iron deficiency anemia. However, more clinical studies of LF need to be further elucidated to determine an appropriate dosage for application in infant formula. LF is sensitive to denaturation induced by processing of infant formula such as heat treatments and spay drying. Thus, further studies should be focus on maximizing the retention of LF activity in the infant formula process. This review summarizes the structural features of LF. Then the digestion, absorption and metabolism of LF in infants are discussed, followed by the function of LF for infants. Further, we summarize LF in infant formula and effects of processing of infant formula on bioactivities of LF, as well as future perspectives of LF research.
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Affiliation(s)
- Wusun Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Biao Liu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- Inner Mongolia Yili Industrial Group Co., Ltd, Hohhot, PR China
| | - Yingying Lin
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- Key Laboratory of Functional Dairy, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
| | - Peng Xue
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Yao Lu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Sijia Song
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Yixuan Li
- Key Laboratory of Functional Dairy, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
| | - Ignatius Man-Yau Szeto
- Inner Mongolia Yili Industrial Group Co., Ltd, Hohhot, PR China
- National Center of Technology Innovation for Dairy, Hohhot, PR China
| | - Fazheng Ren
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- Key Laboratory of Functional Dairy, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
| | - Huiyuan Guo
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- Key Laboratory of Functional Dairy, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
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9
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Remoroza CA, Burke MC, Yang X, Sheetlin S, Mirokhin Y, Markey SP, Tchekhovskoi DV, Stein SE. Mass Spectral Library Methods for Analysis of Site-Specific N-Glycosylation: Application to Human Milk Proteins. J Proteome Res 2022; 21:2421-2434. [DOI: 10.1021/acs.jproteome.2c00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Concepcion A. Remoroza
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Meghan C. Burke
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Xiaoyu Yang
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Sergey Sheetlin
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Yuri Mirokhin
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Sanford P. Markey
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Dmitrii V. Tchekhovskoi
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Stephen E. Stein
- Mass Spectrometry Data Center, Biomolecular Measurement Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
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10
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Rosa L, Cutone A, Conte MP, Campione E, Bianchi L, Valenti P. An overview on in vitro and in vivo antiviral activity of lactoferrin: its efficacy against SARS-CoV-2 infection. Biometals 2022; 36:417-436. [PMID: 35920949 PMCID: PMC9362590 DOI: 10.1007/s10534-022-00427-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/26/2022] [Indexed: 12/15/2022]
Abstract
Beyond the absolute and indisputable relevance and efficacy of anti-SARS-CoV-2 vaccines, the rapid transmission, the severity of infection, the absence of the protection on immunocompromised patients, the propagation of variants, the onset of infection and/or disease in vaccinated subjects and the lack of availability of worldwide vaccination require additional antiviral treatments. Since 1987, lactoferrin (Lf) is well-known to possess an antiviral activity related to its physico-chemical properties and to its ability to bind to both heparan sulfate proteoglycans (HSPGs) of host cells and/or surface components of viral particles. In the present review, we summarize in vitro and in vivo studies concerning the efficacy of Lf against DNA, RNA, enveloped and non-enveloped viruses. Recent studies have revealed that the in vitro antiviral activity of Lf is also extendable to SARS-CoV-2. In vivo, Lf oral administration in early stage of SARS-CoV-2 infection counteracts COVID-19 pathogenesis. In particular, the effect of Lf on SARS-CoV-2 entry, inflammatory homeostasis, iron dysregulation, iron-proteins synthesis, reactive oxygen formation, oxidative stress, gut-lung axis regulation as well as on RNA negativization, and coagulation/fibrinolysis balance will be critically reviewed. Moreover, the molecular mechanisms underneath, including the Lf binding to HSPGs and spike glycoprotein, will be disclosed and discussed. Taken together, present data not only support the application of the oral administration of Lf alone in asymptomatic COVID-19 patients or as adjuvant of standard of care practice in symptomatic ones but also constitute the basis for enriching the limited literature on Lf effectiveness for COVID-19 treatment.
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Affiliation(s)
- Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy
| | - Antimo Cutone
- Department of Biosciences and Territory, University of Molise, Pesche, Italy
| | - Maria Pia Conte
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy
| | - Elena Campione
- Dermatology Unit, Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy
| | - Luca Bianchi
- Dermatology Unit, Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, Rome, Italy.
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Pryshchepa O, Pomastowski P, Rafińska K, Gołębiowski A, Rogowska A, Monedeiro-Milanowski M, Sagandykova G, Michalke B, Schmitt-Kopplin P, Gloc M, Dobrucka R, Kurzydłowski K, Buszewski B. Synthesis, Physicochemical Characterization, and Antibacterial Performance of Silver—Lactoferrin Complexes. Int J Mol Sci 2022; 23:ijms23137112. [PMID: 35806114 PMCID: PMC9266553 DOI: 10.3390/ijms23137112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 12/10/2022] Open
Abstract
Antibiotic-resistant bacteria pose one of the major threats to human health worldwide. The issue is fundamental in the case of chronic wound treatment. One of the latest trends to overcome the problem is the search for new antibacterial agents based on silver. Thus, the aim of this research was to synthesize the silver-lactoferrin complex as a new generation of substances for the treatment of infected wounds. Moreover, one of the tasks was to investigate the formation mechanisms of the respective complexes and the influence of different synthesis conditions on the features of final product. The batch-sorption study was performed by applying the Langmuir and Freundlich isotherm models for the process description. Characterization of the complexes was carried out by spectroscopy, spectrometry, and separation techniques, as well as with electron microscopy. Additionally, the biological properties of the complex were evaluated, i.e., the antibacterial activity against selected bacteria and the impact on L929 cell-line viability. The results indicate the formation of a heterogeneous silver–lactoferrin complex that comprises silver nanoparticles. The complex has higher antibacterial strength than both native bovine lactoferrin and Ag+, while being comparable to silver toxicity.
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Affiliation(s)
- Oleksandra Pryshchepa
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
- Correspondence:
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
| | - Katarzyna Rafińska
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
| | - Adrian Gołębiowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
| | - Agnieszka Rogowska
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
| | - Maciej Monedeiro-Milanowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
| | - Gulyaim Sagandykova
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum Muenchen, 85764 Neuherberg, Germany; (B.M.); (P.S.-K.)
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum Muenchen, 85764 Neuherberg, Germany; (B.M.); (P.S.-K.)
- Chair of Analytical Food Chemistry, Technische Universität München, 85354 Freising, Germany
| | - Michał Gloc
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (M.G.); (R.D.)
| | - Renata Dobrucka
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (M.G.); (R.D.)
- Department of Industrial Products and Packaging Quality, Institute of Quality Science, Poznań University of Economics and Business, 61-875 Poznań, Poland
| | - Krzysztof Kurzydłowski
- Faculty of Mechanical Engineering, Białystok University of Technology, 15-351 Białystok, Poland;
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (P.P.); (A.G.); (A.R.); (M.M.-M.); (G.S.); (B.B.)
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
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12
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Hsu WT, Ramirez DA, Sammakia T, Tan Z, Shirts MR. Identifying signatures of proteolytic stability and monomeric propensity in O-glycosylated insulin using molecular simulation. J Comput Aided Mol Des 2022; 36:313-328. [PMID: 35507105 DOI: 10.1007/s10822-022-00453-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 04/06/2022] [Indexed: 11/24/2022]
Abstract
Insulin has been commonly adopted as a peptide drug to treat diabetes as it facilitates the uptake of glucose from the blood. The development of oral insulin remains elusive over decades owing to its susceptibility to the enzymes in the gastrointestinal tract and poor permeability through the intestinal epithelium upon dimerization. Recent experimental studies have revealed that certain O-linked glycosylation patterns could enhance insulin's proteolytic stability and reduce its dimerization propensity, but understanding such phenomena at the molecular level is still difficult. To address this challenge, we proposed and tested several structural determinants that could potentially influence insulin's proteolytic stability and dimerization propensity. We used these metrics to assess the properties of interest from [Formula: see text] aggregate molecular dynamics of each of 12 targeted insulin glyco-variants from multiple wild-type crystal structures. We found that glycan-involved hydrogen bonds and glycan-dimer occlusion were useful metrics predicting the proteolytic stability and dimerization propensity of insulin, respectively, as was in part the solvent-accessible surface area of proteolytic sites. However, other plausible metrics were not generally predictive. This work helps better explain how O-linked glycosylation influences the proteolytic stability and monomeric propensity of insulin, illuminating a path towards rational molecular design of insulin glycoforms.
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Affiliation(s)
- Wei-Tse Hsu
- Department of Chemical & Biological Engineering, University of Colorado Boulder, Boulder, CO, 80309, USA
| | - Dominique A Ramirez
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, 80309, USA
| | - Tarek Sammakia
- Department of Chemistry, University of Colorado Boulder, Boulder, CO, 80309, USA
| | - Zhongping Tan
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100050, China.
| | - Michael R Shirts
- Department of Chemical & Biological Engineering, University of Colorado Boulder, Boulder, CO, 80309, USA.
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13
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Abrahamse E, Thomassen GGM, Renes IB, Wierenga PA, Hettinga KA. Gastrointestinal Protein Hydrolysis Kinetics: Opportunities for Further Infant Formula Improvement. Nutrients 2022; 14:nu14071512. [PMID: 35406125 PMCID: PMC9003025 DOI: 10.3390/nu14071512] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 12/10/2022] Open
Abstract
The postprandial plasma essential amino acid (AA) peak concentrations of infant formula (IF) are higher than those of human milk (HM) in infants. In addition, several HM proteins have been recovered intact in infant stool and appeared digestion resistant in vitro. We, therefore, hypothesized that gastrointestinal protein hydrolysis of IF is faster than HM and leads to accelerated absorbable digestion product release. HM and IF protein hydrolysis kinetics were compared in a two-step semi-dynamic in vitro infant digestion model, and the time course of degree of protein hydrolysis (DH), loss of intact protein, and release of free AA and peptides was evaluated. Gastric DH increase was similar for IF and HM, but the rate of intestinal DH increase was 1.6 times higher for IF than HM. Intact protein loss in IF was higher than HM from 120 min gastric phase until 60 min intestinal phase. Intestinal phase total digestion product (free AA + peptides <5 kDa) concentrations increased ~2.5 times faster in IF than HM. IF gastrointestinal protein hydrolysis and absorbable product release are faster than HM, possibly due to the presence of digestion-resistant proteins in HM. This might present an opportunity to further improve IF bringing it closer to HM.
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Affiliation(s)
- Evan Abrahamse
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (G.G.M.T.); (I.B.R.)
- Food Quality and Design Group, Wageningen University and Research, 6708 WG Wageningen, The Netherlands;
- Correspondence:
| | | | - Ingrid B. Renes
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (G.G.M.T.); (I.B.R.)
- Department of Pediatrics, Emma Children’s Hospital, Amsterdam UMC—Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Peter A. Wierenga
- Laboratory of Food Chemistry, Wageningen University and Research, 6708 WG Wageningen, The Netherlands;
| | - Kasper A. Hettinga
- Food Quality and Design Group, Wageningen University and Research, 6708 WG Wageningen, The Netherlands;
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14
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Pryshchepa O, Sagandykova G, Rudnicka J, Pomastowski P, Sprynskyy M, Buszewski B. Synthesis and physicochemical characterization of zinc-lactoferrin complexes. J Dairy Sci 2022; 105:1940-1958. [PMID: 35033339 DOI: 10.3168/jds.2021-20538] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 10/18/2021] [Indexed: 02/05/2023]
Abstract
One trend of the modern world is the search for new biologically active substances based on renewable resources. Milk proteins can be a solution for such purposes as they have been known for a long time as compounds that can be used for the manufacturing of multiple food and non-food products. Thus, the goal of the work was to investigate the parameters of Zn-bovine lactoferrin (bLTF) interactions, which enables the synthesis of Zn-rich protein complexes. Zinc-bLTF complexes can be used as food additives or wound-healing agents. Methodology of the study included bLTF characterization by sodium dodecyl sulfate-PAGE, MALDI-TOF, and MALDI-TOF/TOF mass spectrometry as well Zn-bLTF interactions by attenuated total reflection-Fourier-transform infrared, Raman spectroscopy, scanning and transmission microscopy, and zeta potential measurements. The obtained results revealed that the factors that affect Zn-bLTF interactions most significantly were found to be pH and ionic strength of the solution and, in particular, the concentration of Zn2+. These findings imply that these factors should be considered when aiming at the synthesis of Zn-bLTF metallocomplexes.
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Affiliation(s)
- Oleksandra Pryshchepa
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Gulyaim Sagandykova
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Joanna Rudnicka
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Myroslav Sprynskyy
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
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15
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Silva AM, Moniz T, de Castro B, Rangel M. Human transferrin: An inorganic biochemistry perspective. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214186] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Sienkiewicz M, Jaśkiewicz A, Tarasiuk A, Fichna J. Lactoferrin: an overview of its main functions, immunomodulatory and antimicrobial role, and clinical significance. Crit Rev Food Sci Nutr 2021; 62:6016-6033. [PMID: 33685299 DOI: 10.1080/10408398.2021.1895063] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lactoferrin (LF), a glycoprotein found in mucosal secretions, is characterized by a wide range of functions, including immunomodulatory and anti-inflammatory activities. Moreover, several investigations confirmed that LF displays high effectiveness against multiple bacteria and viruses and may be regarded as a potential inhibitor of enveloped viruses, such as presently prevailing SARS-CoV-2. In our review, we discuss available studies about LF functions and bioavailability of different LF forms in in vitro and in vivo models. Moreover, we characterize the potential benefits and side effects of LF use; we also briefly summarize the latest clinical trials examining LF application. Finally, we point potential role of LF in inflammatory bowel disease and indicate its use as a marker for disease severity.
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Affiliation(s)
- Michał Sienkiewicz
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Andrzej Jaśkiewicz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Lodz, Poland
| | - Aleksandra Tarasiuk
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
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17
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Zlatina K, Galuska SP. The N-glycans of lactoferrin: more than just a sweet decoration. Biochem Cell Biol 2021; 99:117-127. [DOI: 10.1139/bcb-2020-0106] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Nearly all extracellular proteins undergo post-translational modification with sugar chains during their transit through the endoplasmic reticulum and the Golgi apparatus. These “sweet” modifications not only influence the activity of its carrier protein, but they themselves often have bioactivity, independent of the carrier function. Lactoferrin belongs to the group of glycoproteins and is modified with several different N-glycans. This minireview summarizes several studies dealing with the diverse glycosylation patterns of lactoferrin from different origins, and the potential impact of these post-translational modifications on the functionality of lactoferrin. A special emphasis is placed on the differences between human and bovine lactoferrin, because the latter form is often selected for the development of novel therapeutic approaches in humans. For this reason, the potential impact of the bovine-specific glycosylation patterns on the observed heterogeneous effects of lactoferrin in humans is discussed within this minireview.
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Affiliation(s)
- Kristina Zlatina
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Sebastian P. Galuska
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
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18
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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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19
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Dierick M, Vanrompay D, Devriendt B, Cox E. Lactoferrin, a versatile natural antimicrobial glycoprotein that modulates the host's innate immunity. Biochem Cell Biol 2020; 99:61-65. [PMID: 32585120 DOI: 10.1139/bcb-2020-0080] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Lactoferrin is a multifunctional protein found in the secretions of mammals. The antimicrobial activity of lactoferrin was the first to be discovered and was assumed to be solely dependent on its iron-chelating ability. However, lactoferrin has been reported to display proteolytic activity towards bacterial virulence factors and to modulate the host defence by stimulating the immune system and balancing pathogen-induced inflammation. Here, we review the current understandings of the antimicrobial effect, interaction with host cells, and innate immune modulation of lactoferrin, and put forward this moonlighting protein as a possible alternative for antibiotics.
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Affiliation(s)
- Matthias Dierick
- Laboratory of Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Daisy Vanrompay
- Laboratory for Immunology and Animal Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Bert Devriendt
- Laboratory of Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Eric Cox
- Laboratory of Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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20
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Pang X, Tong Y, Li F, Wei X, Chen X, Liu J, Chen D. Expression and characterization of human lactoferrin with tandem zinc finger protein in Chlamydomonas reinhardtii. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Niaz B, Saeed F, Ahmed A, Imran M, Maan AA, Khan MKI, Tufail T, Anjum FM, Hussain S, Suleria HAR. Lactoferrin (LF): a natural antimicrobial protein. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1666137] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bushra Niaz
- Institute of Home & Food Sciences, Government College University, Faisalabad, Pakistan
| | - Farhan Saeed
- Institute of Home & Food Sciences, Government College University, Faisalabad, Pakistan
| | - Awais Ahmed
- Institute of Home & Food Sciences, Government College University, Faisalabad, Pakistan
| | - Muhammad Imran
- Faculty of Allied Health Sciences, University Institute of Diet & Nutritional Sciences, University of Lahore, Lahore, Pakistan
| | - Abid Aslam Maan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | | | - Tabussam Tufail
- Institute of Home & Food Sciences, Government College University, Faisalabad, Pakistan
| | | | - Shahzad Hussain
- College of Food and Agricultural Sciences, King Saud, University, Riyadh, Saudi Arabia
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22
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Souza BBP, Cardozo Fh JL, Murad AM, Prates MV, Coura MM, Brand GD, Barbosa EA, Bloch C. Identification and characterization of phospholipases A2 from the skin secretion of Pithecopus azureus anuran. Toxicon 2019; 167:10-19. [DOI: 10.1016/j.toxicon.2019.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/17/2019] [Accepted: 06/03/2019] [Indexed: 11/26/2022]
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23
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Lepanto MS, Rosa L, Paesano R, Valenti P, Cutone A. Lactoferrin in Aseptic and Septic Inflammation. Molecules 2019; 24:molecules24071323. [PMID: 30987256 PMCID: PMC6480387 DOI: 10.3390/molecules24071323] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022] Open
Abstract
Lactoferrin (Lf), a cationic glycoprotein able to chelate two ferric irons per molecule, is synthesized by exocrine glands and neutrophils. Since the first anti-microbial function attributed to Lf, several activities have been discovered, including the relevant anti-inflammatory one, especially associated to the down-regulation of pro-inflammatory cytokines, as IL-6. As high levels of IL-6 are involved in iron homeostasis disorders, Lf is emerging as a potent regulator of iron and inflammatory homeostasis. Here, the role of Lf against aseptic and septic inflammation has been reviewed. In particular, in the context of aseptic inflammation, as anemia of inflammation, preterm delivery, Alzheimer’s disease and type 2 diabetes, Lf administration reduces local and/or systemic inflammation. Moreover, Lf oral administration, by decreasing serum IL-6, reverts iron homeostasis disorders. Regarding septic inflammation occurring in Chlamydia trachomatis infection, cystic fibrosis and inflammatory bowel disease, Lf, besides the anti-inflammatory activity, exerts a significant activity against bacterial adhesion, invasion and colonization. Lastly, a critical analysis of literature in vitro data reporting contradictory results on the Lf role in inflammatory processes, ranging from pro- to anti-inflammatory activity, highlighted that they depend on cell models, cell metabolic status, stimulatory or infecting agents as well as on Lf iron saturation degree, integrity and purity.
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Affiliation(s)
- Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | | | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Antimo Cutone
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy.
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24
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Bovine colostrum-driven modulation of intestinal epithelial cells for increased commensal colonisation. Appl Microbiol Biotechnol 2019; 103:2745-2758. [PMID: 30685814 DOI: 10.1007/s00253-019-09642-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/04/2019] [Accepted: 01/10/2019] [Indexed: 01/04/2023]
Abstract
Nutritional intake may influence the intestinal epithelial glycome and in turn the available attachment sites for bacteria. In this study, we tested the hypothesis that bovine colostrum may influence the intestinal cell surface and in turn the attachment of commensal organisms. Human HT-29 intestinal cells were exposed to a bovine colostrum fraction (BCF) rich in free oligosaccharides. The adherence of several commensal bacteria, comprising mainly bifidobacteria, to the intestinal cells was significantly enhanced (up to 52-fold) for all strains tested which spanned species that are found across the human lifespan. Importantly, the changes to the HT-29 cell surface did not support enhanced adhesion of the enteric pathogens tested. The gene expression profile of the HT-29 cells following treatment with the BCF was evaluated by microarray analysis. Many so called "glyco-genes" (glycosyltransferases and genes involved in the complex biosynthetic pathways of glycans) were found to be differentially regulated suggesting modulation of the enzymatic addition of sugars to glycoconjugate proteins. The microarray data was further validated by means of real-time PCR. The current findings provide an insight into how commensal microorganisms colonise the human gut and highlight the potential of colostrum and milk components as functional ingredients that can potentially increase commensal numbers in individuals with lower counts of health-promoting bacteria.
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25
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Abstract
Human and bovine lactoferrin (hLf and bLf) are multifunctional iron-binding glycoprotein constitutively synthesized and secreted by glandular epithelial cells and by neutrophils following induction. HLf and bLf possess very high similarity of sequence. Therefore, most of the in vitro and in vivo studies are carried out with commercial bLf (cbLf), available in large quantities and recognized by Food and Drug Administration (FDA, USA) as a safe substance. Physico-chemical heterogeneity of different cbLf preparations influences their effectiveness. CbLf iron-saturation affects thermal stability and resistance to proteolysis. Moreover, other metal ions such as Al(III), Cu(II), Mg(II), Mn(II), Zn(II) are chelated by cbLf, even if at lower affinity than Fe(III). Ca(II) is also sequestered by the carboxylate groups of sialic acid present on glycan chains of cbLf thus provoking the release of LPS, contributing to bactericidal activity. Similarly to more than 50% of eukaryotic proteins, cbLf possesses five N-glycosylation sites, also contributing to the resistance to proteolysis and, putatively, to the protection of intestinal mucosa from pathogens. CbLfs possess several functions as anti-microbial, anti-biofilm, anti-adhesive, anti-invasive and anti-inflammatory activities. They are also relevant modulators of iron and inflammatory homeostasis. However, the efficacy of cbLfs in exerting several functions can be erratic mainly depending from integrity, degree of iron and other metal ions saturation, N-glycosylation sites and chains, desialylated forms, Ca(II) sequestration, presence of contaminants and finally the ability to enter inside nucleus.
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Parrón JA, Ripollés D, Ramos SJ, Pérez MD, Semen Z, Rubio P, Calvo M, Sánchez L. Antirotaviral potential of lactoferrin from different origin: effect of thermal and high pressure treatments. Biometals 2018; 31:343-355. [PMID: 29480371 DOI: 10.1007/s10534-018-0088-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 02/19/2018] [Indexed: 10/17/2022]
Abstract
Rotaviral gastroenteritis causes a high rate of infant mortality and severe healthcare implications worldwide. Several studies have pointed out that human milk and dairy fractions, such as whey and buttermilk, possess antirotaviral activity. This activity has been mainly associated with glycoproteins, among them lactoferrin (LF). Thermal treatments are necessary to provide microbiological safety and extend the shelf life of milk products, though they may diminish their biological value. High hydrostatic pressure (HHP) treatment is a non-thermal method that causes lower degradation of food components than other treatments. Thus, the main objective of this study was to prove the antirotaviral activity of LFs from different origin and to evaluate the effect of several thermal and HHP treatments on that activity. LF exerted a high antirotaviral activity, regardless of its origin. Native LFs from bovine, ovine, swine and camel milk, and the human recombinant forms, at 1 mg/mL, showed neutralizing values in the range 87.5-98.6%, while human LF neutralized 58.2%. Iron saturation of bovine LF did not modify its antirotaviral activity. Results revealed interspecies differences in LFs heat susceptibility. Thus, pasteurization at 63 °C for 30 min led to a decrease of 60.1, 44.5, 87.1, 3.8 and 8% of neutralizing activity for human, bovine, swine, ovine and camel LFs, respectively. Pasteurization at 75 °C for 20 s was less harmful to the activity of LFs, with losses ranging from 0 to 13.8%. HHP treatment at 600 MPa for 15 min did not cause any significant decrease in the neutralizing activity of LFs.
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Affiliation(s)
- José Antonio Parrón
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza/CITA, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Daniel Ripollés
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza/CITA, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Sergio José Ramos
- Centro Nacional de Tecnología y Seguridad Alimentaria (CNTA), Carretera NA 134, km 53, 31570, San Adrián, Spain
| | - María Dolores Pérez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza/CITA, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Zeynep Semen
- Department of Biochemistry, Faculty of Veterinary Medicine, Ankara University, Şehit Ömer Halisdemir Bulvarı, 06110, Altındağ, Turkey.,International Center for Livestock Research and Training, S. Sırrı İçöz Caddesi, 06852, Mamak, Ankara, Turkey
| | - Pedro Rubio
- Unidad de Enfermedades Infecciosas y Epidemiología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana, s/n, 24007, León, Spain
| | - Miguel Calvo
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza/CITA, Miguel Servet 177, 50013, 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, Miguel Servet 177, 50013, Zaragoza, Spain.
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Figueroa‐Lozano S, Valk‐Weeber RL, van Leeuwen SS, Dijkhuizen L, de Vos P. Dietary N-Glycans from Bovine Lactoferrin and TLR Modulation. Mol Nutr Food Res 2018; 62:1700389. [PMID: 28971586 PMCID: PMC6120133 DOI: 10.1002/mnfr.201700389] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/22/2017] [Indexed: 12/29/2022]
Abstract
SCOPE Bovine lactoferrin (bLF) is an ingredient of food supplements and infant formulas given its antimicrobial and antiviral properties. We modified bLF enzymatically to alter its N-glycosylation and to isolate the glycan chains. The aims of this study include (1) to evaluate whether such derivates induce responses via pattern recognition receptors namely Toll-like receptors (TLRs) and (2) to relate those responses to their different glycosylation profiles. METHODS AND RESULTS The unmodified and modified bLF fractions are incubated with reporter cell lines expressing pattern recognition receptors. Afterwards, we screen for TLRs and analyze for nuclear factor kappa-light-chain enhancer of activated B cells (NF-κB) activation. Activation of reporter cell lines show that signaling is highly dependent on TLRs. The activation pattern of bLF is reduced with the desialylated form and increased with the demannosylated form. In reporter cells for TLR, bLF activate TLR-4 and inhibit TLR-3. The isolated glycans from bLF inhibit TLR-8. TLR-2, TLR-5, TLR-7, and TLR-9 are not significantly altered. CONCLUSION The profile of glycosylation is key for the biological activity of bLF. By understanding how this affects the human defense responses, the bLF glycan profile can be modified to enhance its immunomodulatory effects when used as a dietary ingredient.
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Affiliation(s)
- Susana Figueroa‐Lozano
- ImmunoendocrinologyDivision of Medical BiologyDepartment of Pathology and Medical BiologyUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
| | - Rivca L. Valk‐Weeber
- Microbial PhysiologyGroningen Biomolecular Sciences and Biotechnology Institute (GBB)GroningenThe Netherlands
| | - Sander S. van Leeuwen
- Microbial PhysiologyGroningen Biomolecular Sciences and Biotechnology Institute (GBB)GroningenThe Netherlands
| | - Lubbert Dijkhuizen
- Microbial PhysiologyGroningen Biomolecular Sciences and Biotechnology Institute (GBB)GroningenThe Netherlands
| | - Paul de Vos
- ImmunoendocrinologyDivision of Medical BiologyDepartment of Pathology and Medical BiologyUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
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28
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Zhang JL, Han X, Shan YJ, Zhang LW, Du M, Liu M, Yi HX, Ma Y. Effect of bovine lactoferrin and human lactoferrin on the proliferative activity of the osteoblast cell line MC3T3-E1 in vitro. J Dairy Sci 2017; 101:1827-1833. [PMID: 29290425 DOI: 10.3168/jds.2017-13161] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 11/10/2017] [Indexed: 11/19/2022]
Abstract
We conducted a comparative in vitro study on the proliferative effects of natural human lactoferrin (nhLF) and bovine lactoferrin (bLF) on osteoblasts. We investigated cell proliferation, cell survival, cell cycle, and mRNA and protein expression of proliferating cell nuclear antigen. Results indicated that treatment with 100 μg/mL of bLF or nhLF promoted the proliferation and sustenance of osteoblasts, and increased the length of the G2/M and S phases compared with the untreated osteoblasts. Results of real-time quantitative PCR and Western blot showed that mRNA and protein expression of proliferating cell nuclear antigen by osteoblasts treated with bLF or nhLF were greater than those of the untreated control. At the same concentration, bLF demonstrated a greater effect on osteoblast proliferation than did nhLF. This study provides insights of significance in the utlization of bLF in healthy food formulas.
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Affiliation(s)
- J L Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - X Han
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China.
| | - Y J Shan
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - L W Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China; College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China.
| | - M Du
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - M Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - H X Yi
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Y Ma
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, China
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29
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Shahali Y, Sutra J, Hilger C, Swiontek K, Haddad I, Vinh J, Guilloux L, Charpin D, Sénéchal H, Poncet P. Identification of a polygalacturonase (Cup s 2) as the major CCD-bearing allergen in Cupressus sempervirens pollen. Allergy 2017; 72:1806-1810. [PMID: 28439939 DOI: 10.1111/all.13191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2017] [Indexed: 11/28/2022]
Abstract
As IgE glyco-epitopes, also referred to as cross-reactive carbohydrate determinants (CCDs), can share significant structural homologies between different plants, they are prone to extensive cross-reactivity among allergen pollen extracts. Here, cypress pollen allergens, especially a polygalacturonase (PG), were further characterized using double one-dimensional electrophoresis (D1-DE). The presence of specific IgE directed against CCDs was investigated by bromelain IgE inhibition and concanavalin A binding assays using sera of cypress pollen-sensitized patients. Our results showed that IgE reactivity to CCDs in Cupressus sempervirens pollen extracts is mainly related to bromelain-type epitopes of a newly identified cypress PG. This glycoprotein has been further characterized through an immunoproteomic approach and officially indexed as Cup s 2 by the WHO/IUIS allergen nomenclature. Cup s 2 could thus be associated with the increased prevalence of IgE reactivity to cypress pollen extracts because of CCD interference.
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Affiliation(s)
- Y. Shahali
- Department of Biochemistry, Allergy & Environment Team Armand Trousseau Children Hospital, AP‐HP Paris France
- Razi Vaccine and Serum Research Institute Agricultural Research, Education and Extension Organization (AREEO) Karaj Iran
| | - J.‐P. Sutra
- Department of Biochemistry, Allergy & Environment Team Armand Trousseau Children Hospital, AP‐HP Paris France
| | - C. Hilger
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - K. Swiontek
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - I. Haddad
- ESPCI ParisTech SMBP USR CNRS 3149 Paris France
| | - J. Vinh
- ESPCI ParisTech SMBP USR CNRS 3149 Paris France
| | - L. Guilloux
- Eurofins‐Biomnis Bio‐medical analysis laboratory Lyon France
| | - D. Charpin
- Department of Pneumology and Allergy AP‐HM and Inserm, U1067 CNRS UMR 7333, Aix‐Marseille University Marseille France
| | - H. Sénéchal
- Department of Biochemistry, Allergy & Environment Team Armand Trousseau Children Hospital, AP‐HP Paris France
| | - P. Poncet
- Department of Biochemistry, Allergy & Environment Team Armand Trousseau Children Hospital, AP‐HP Paris France
- Center for Innovation and Technological Research Pasteur Institute Paris France
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30
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Comparison of anti-pathogenic activities of the human and bovine milk N-glycome: Fucosylation is a key factor. Food Chem 2017; 235:167-174. [DOI: 10.1016/j.foodchem.2017.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 04/08/2017] [Accepted: 05/04/2017] [Indexed: 11/24/2022]
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31
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Wang B, Timilsena YP, Blanch E, Adhikari B. Lactoferrin: Structure, function, denaturation and digestion. Crit Rev Food Sci Nutr 2017; 59:580-596. [DOI: 10.1080/10408398.2017.1381583] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bo Wang
- Food Research and Innovation Centre, School of Science, RMIT University, Melbourne, VIC, Australia
| | - Yakindra Prasad Timilsena
- Food Research and Innovation Centre, School of Science, RMIT University, Melbourne, VIC, Australia
- Materials Science and Engineering, CSIRO Manufacturing Flagship, Clayton South, VIC, Australia
| | - Ewan Blanch
- Food Research and Innovation Centre, School of Science, RMIT University, Melbourne, VIC, Australia
| | - Benu Adhikari
- Food Research and Innovation Centre, School of Science, RMIT University, Melbourne, VIC, Australia
- Materials Science and Engineering, CSIRO Manufacturing Flagship, Clayton South, VIC, Australia
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32
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Liu M, Fan F, Shi P, Tu M, Yu C, Yu C, Du M. Lactoferrin promotes MC3T3-E1 osteoblast cells proliferation via MAPK signaling pathways. Int J Biol Macromol 2017; 107:137-143. [PMID: 28863893 DOI: 10.1016/j.ijbiomac.2017.08.151] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 12/14/2022]
Abstract
Lactoferrin has attracted great attention as a potential functional factor to prevent osteoporosis due to its various bioactivities. However, the molecular mechanism underlining the osteogenic activity of lactoferrin is unclear. In this study, effect of lactoferrin on MC3T3-E1 osteoblast cells proliferation was determined using MTT assay, while MAPK signaling pathways related to proliferation of MC3T3-E1 osteoblast cells were investigated based on mRNA and protein expressions. The distribution of cells at different cell cycle stages was evaluated by flow cytometry. Our findings indicated that lactoferrin enhanced MC3T3-E1 osteoblast cells proliferation in a dose-dependent manner; namely, it increased the proportion of cells in S and G2/M phases. Furthermore, we also found that lactoferrin could stimulate ERK, JNK and p38 MAPK. The mRNA expression of MAPK were significantly enhanced after treatment of lactoferrin. Lactoferrin significantly promoted the activation-associated phosphorylation of ERK and p38 MAPK and prevented the activation of JNK. Additionally, lactoferrin could enhance c-Fos and c-Jun expression by 3 times and 26 times, respectively. These results indicated that lactoferrin induced MC3T3-E1 osteoblast cells proliferation through c-Fos and c-Jun by stimulating ERK, JNK and p38, elucidating the molecular basis of the osteogenic activity of lactoferrin on MC3T3-E1 osteoblast cells.
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Affiliation(s)
- Meng Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Fengjiao Fan
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Pujie Shi
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Maolin Tu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Cuiping Yu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
| | - Chenxu Yu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China; Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50010, USA
| | - Ming Du
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China; School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China.
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33
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Exploitation of SPR to Investigate the Importance of Glycan Chains in the Interaction between Lactoferrin and Bacteria. SENSORS 2017; 17:s17071515. [PMID: 28653977 PMCID: PMC5539864 DOI: 10.3390/s17071515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/21/2017] [Accepted: 06/22/2017] [Indexed: 01/22/2023]
Abstract
Bovine lactoferrin (LF) has been shown to prevent adhesion to and invasion of mammalian cell lines by pathogenic bacteria, with evidence for direct bacterial binding by the milk glycoprotein. However, the glycosylation pattern of LF changes over the lactation cycle. In this study, we aim to investigate the effect that this variation has on the milk glycoprotein's ability to interact with pathogens. Surface plasmon resonance technology was employed to compare the binding of LF from colostrum (early lactation) and mature milk (late lactation) to a panel of pathogenic bacteria (Staphylococcus aureus, Escherichia coli, Cronobacter sakazakii, Streptococcus pneumoniae, Pseudomonas aeruginosa, Listeria monocytogenes and Salmonella typhimurium). Novel interactions with LF were identified for C. sakazakii, S. pneumoniae and P. aeruginosa with the highest binding ability observed for mature milk LF in all cases, with the exception of S. typhimurium. The difference in bacterial binding observed may be as a result of the varying glycosylation profiles. This work demonstrates the potential of LF as a functional food ingredient to prevent bacterial infection.
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34
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Sopko R, Mugford JW, Lehmann A, Shapiro RI, Rushe M, Kulkarni A, Worrall J, Amatucci J, Wen D, Pederson NE, Minesinger BK, Arndt JW, Pepinsky B. Engineering potent long-acting variants of the Wnt inhibitor DKK2. Protein Eng Des Sel 2017; 30:359-372. [PMID: 28180900 PMCID: PMC5425732 DOI: 10.1093/protein/gzx007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 01/19/2017] [Indexed: 11/15/2022] Open
Abstract
Wnt signaling pathways are required for a wide variety of biological processes ranging from embryonic development to tissue repair and regeneration. Dickkopf-2 (DKK2) is classically defined as a canonical Wnt inhibitor, though it may play a role in activating non-canonical Wnt pathways in the context of endothelial network formation after acute injury. Here we report the discovery of a fusion partner for a DKK2 polypeptide that significantly improves the expression, biochemical properties and pharmacokinetics (PK) of the DKK2 polypeptide. Specifically, human serum albumin (HSA) was identified as a highly effective fusion partner. Substitution of selected amino acid residues in DKK2 designed to decrease heparan sulfate binding by HSA-DKK2 variants, further improved the PK properties of the molecule in rodents. The HSA-DKK2 variants were monomeric, as thermally stable as wild type, and active as measured by their ability to bind to and prevent phosphorylation of the Wnt coreceptor LRP6. Our engineering efforts resulted in potent long-lived variants of the canonical Wnt inhibitor DKK2, applicable for Wnt pathway manipulation either by systematic delivery or focused administration at sites of tissue injury.
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Affiliation(s)
- Richelle Sopko
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Joshua W Mugford
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Andreas Lehmann
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Renée I Shapiro
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Mia Rushe
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Abhishek Kulkarni
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Joseph Worrall
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Joseph Amatucci
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Dingyi Wen
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Nels E Pederson
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | | | - Joseph W Arndt
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
| | - Blake Pepinsky
- Department of Cell and Protein Sciences, Biogen, Cambridge, MA 02142, USA
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35
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Karav S, German JB, Rouquié C, Le Parc A, Barile D. Studying Lactoferrin N-Glycosylation. Int J Mol Sci 2017; 18:E870. [PMID: 28425960 PMCID: PMC5412451 DOI: 10.3390/ijms18040870] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/30/2022] Open
Abstract
Lactoferrin is a multifunctional glycoprotein found in the milk of most mammals. In addition to its well-known role of binding iron, lactoferrin carries many important biological functions, including the promotion of cell proliferation and differentiation, and as an anti-bacterial, anti-viral, and anti-parasitic protein. These functions differ among lactoferrin homologs in mammals. Although considerable attention has been given to the many functions of lactoferrin, its primary nutritional contribution is presumed to be related to its iron-binding characteristics, whereas the role of glycosylation has been neglected. Given the critical role of glycan binding in many biological processes, the glycan moieties in lactoferrin are likely to contribute significantly to the biological roles of lactoferrin. Despite the high amino acid sequence homology in different lactoferrins (up to 99%), each exhibits a unique glycosylation pattern that may be responsible for heterogeneity of the biological properties of lactoferrins. An important task for the production of biotherapeutics and medical foods containing bioactive glycoproteins is the assessment of the contributions of individual glycans to the observed bioactivities. This review examines how the study of lactoferrin glycosylation patterns can increase our understanding of lactoferrin functionality.
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Affiliation(s)
- Sercan Karav
- Department of Molecular Biology and Genetics, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey.
| | - J Bruce German
- Department of Food Science and Technology, University of California, One Shields Avenue, Davis, CA 95616, USA.
- Foods for Health Institute, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Camille Rouquié
- Department of Food Science and Technology, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Annabelle Le Parc
- Department of Food Science and Technology, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Daniela Barile
- Department of Food Science and Technology, University of California, One Shields Avenue, Davis, CA 95616, USA.
- Foods for Health Institute, University of California, One Shields Avenue, Davis, CA 95616, USA.
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36
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Rybarczyk J, Kieckens E, Vanrompay D, Cox E. In vitro and in vivo studies on the antimicrobial effect of lactoferrin against Escherichia coli O157:H7. Vet Microbiol 2017; 202:23-28. [DOI: 10.1016/j.vetmic.2016.05.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 05/11/2016] [Accepted: 05/18/2016] [Indexed: 10/21/2022]
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37
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Wang B. Molecular Determinants of Milk Lactoferrin as a Bioactive Compound in Early Neurodevelopment and Cognition. J Pediatr 2016; 173 Suppl:S29-36. [PMID: 27234408 DOI: 10.1016/j.jpeds.2016.02.073] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Lactoferrin is a sialic acid-rich, iron-binding milk glycoprotein, known to have multifunctional health benefits, including its ability to modulate immune function and facilitate iron absorption, as well as its antibacterial and antiinflammatory actions. Human milk contains significantly higher lactoferrin levels than bovine milk at the same stages of lactation. The purpose of this review is to discuss the current state of knowledge of lactoferrin as a conditional nutrient for neurodevelopment, neuroprotection, and cognitive function during the period of rapid brain growth.
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Affiliation(s)
- Bing Wang
- Discipline of Physiology, School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, Australia; School of Medicine, Xiamen University, Xiamen City, P.R. China.
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38
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Donovan SM. The Role of Lactoferrin in Gastrointestinal and Immune Development and Function: A Preclinical Perspective. J Pediatr 2016; 173 Suppl:S16-28. [PMID: 27234407 DOI: 10.1016/j.jpeds.2016.02.072] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The early postnatal period is a critical time for gastrointestinal (GI) and immune development. Neonates fed mother's milk have more rapid GI and immune development than fed-formula infants. In addition, clinical and epidemiologic data provide strong evidence that breastfeeding reduces the incidence and/or severity of infectious diseases. Lactoferrin is a 77 kDa, iron-binding glycoprotein that is present at high concentration in human milk compared with bovine milk and infant formula. It is a multifunctional protein that mediates many of the physiological processes in which breastfed infants have advantages over their formula-fed peers, including promoting GI and immune development, protection from infections, and improved cognitive development. Feeding bovine lactoferrin or recombinant human lactoferrin was well tolerated and stimulated intestinal cell proliferation and increased villus length and crypt depth in piglets. Lactoferrin also influenced both systemic and GI immune development by stimulating a balanced T-helper-1/T-helper-2 cytokine immune response. Further, there was a tendency for immune cells to secrete more anti-inflammatory cytokines in an unstimulated state, while being primed for a robust pro-inflammatory response when presented with a bacterial trigger in piglets fed lactoferrin. These findings support clinical studies demonstrating benefits of dietary lactoferrin in the prevention of infections, late onset sepsis, and necrotizing enterocolitis.
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Affiliation(s)
- Sharon M Donovan
- Department of Food Science and Human Nutrition, University of Illinois, Urbana, IL.
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Deglaire A, De Oliveira SC, Jardin J, Briard-Bion V, Emily M, Ménard O, Bourlieu C, Dupont D. Impact of human milk pasteurization on the kinetics of peptide release during in vitro dynamic term newborn digestion. Electrophoresis 2016; 37:1839-50. [DOI: 10.1002/elps.201500573] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/22/2016] [Accepted: 03/04/2016] [Indexed: 01/09/2023]
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40
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Mayeur S, Spahis S, Pouliot Y, Levy E. Lactoferrin, a Pleiotropic Protein in Health and Disease. Antioxid Redox Signal 2016; 24:813-36. [PMID: 26981846 DOI: 10.1089/ars.2015.6458] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
SIGNIFICANCE Lactoferrin (Lf) is a nonheme iron-binding glycoprotein strongly expressed in human and bovine milk and it plays many functions during infancy such as iron homeostasis and defense against microorganisms. In humans, Lf is mainly expressed in mucosal epithelial and immune cells. Growing evidence suggests multiple physiological roles for Lf after weaning. RECENT ADVANCES The aim of this review is to highlight the recent advances concerning multifunctional Lf activities. CRITICAL ISSUES First, we will provide an overview of the mechanisms related to Lf intrinsic synthesis or intestinal absorption as well as its interaction with a wide spectrum of mammalian receptors and distribution in organs and cell types. Second, we will discuss the large variety of its physiological functions such as iron homeostasis, transportation, immune regulation, oxidative stress, inflammation, and apoptosis while specifying the mechanisms of action. Third, we will focus on its recent physiopathology implication in metabolic disorders, including obesity, type 2 diabetes, and cardiovascular diseases. Additional efforts are necessary before suggesting the potential use of Lf as a diagnostic marker or as a therapeutic tool. FUTURE DIRECTIONS The main sources of Lf in human cardiometabolic disorders should be clarified to identify new perspectives for future research and develop new strategies using Lf in therapeutics. Antioxid. Redox Signal. 24, 813-836.
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Affiliation(s)
- Sylvain Mayeur
- 1 Research Centre, CHU Ste-Justine, Université de Montréal , Montreal, Canada .,2 Institute of Nutraceuticals and Functional Foods (INAF) , Université Laval, Quebec, Canada
| | - Schohraya Spahis
- 1 Research Centre, CHU Ste-Justine, Université de Montréal , Montreal, Canada .,2 Institute of Nutraceuticals and Functional Foods (INAF) , Université Laval, Quebec, Canada .,3 Department of Nutrition, Université de Montréal , Montreal, Canada
| | - Yves Pouliot
- 3 Department of Nutrition, Université de Montréal , Montreal, Canada
| | - Emile Levy
- 1 Research Centre, CHU Ste-Justine, Université de Montréal , Montreal, Canada .,2 Institute of Nutraceuticals and Functional Foods (INAF) , Université Laval, Quebec, Canada .,3 Department of Nutrition, Université de Montréal , Montreal, Canada
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41
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Analytical detection and characterization of biopharmaceutical glycosylation by MS. Bioanalysis 2016; 8:711-27. [PMID: 26964748 DOI: 10.4155/bio.16.20] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Glycosylation plays an important role in ensuring the proper structure and function of most biotherapeutic proteins. Even small changes in glycan composition, structure, or location can have a drastic impact on drug safety and efficacy. Recently, glycosylation has become the subject of increased focus as biopharmaceutical companies rush to create not only biosimilars, but also biobetters based on existing biotherapeutic proteins. Against this backdrop of ongoing biopharmaceutical innovation, updated methods for accurate and detailed analysis of protein glycosylation are critical for biopharmaceutical companies and government regulatory agencies alike. This review summarizes current methods of characterizing biopharmaceutical glycosylation, including compositional mass profiling, isomer-specific profiling and structural elucidation by MS and hyphenated techniques.
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42
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Danwen Q, Code C, Quan C, Gong BJ, Arndt J, Pepinsky B, Rand KD, Houde D. Investigating the Role of Artemin Glycosylation. Pharm Res 2016; 33:1383-98. [DOI: 10.1007/s11095-016-1880-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/11/2016] [Indexed: 11/24/2022]
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Ke X, Chen Q, Pan X, Zhang J, Mo W, Ren Y. Quantification of lactoferrin in breast milk by ultra-high performance liquid chromatography-tandem mass spectrometry with isotopic dilution. RSC Adv 2016. [DOI: 10.1039/c5ra27243b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We developed a LC-MS/MS method for quantification of human lactoferrin in breast milk based on tryptic peptides and a synthetic isotopic peptide standard.
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Affiliation(s)
- Xing Ke
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou
- China
| | - Qi Chen
- Zhejiang Provincial Center for Disease Control and Prevention
- Hangzhou
- China
| | - Xiaodong Pan
- Zhejiang Provincial Center for Disease Control and Prevention
- Hangzhou
- China
| | - Jingshun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention
- Hangzhou
- China
| | - Weimin Mo
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou
- China
| | - Yiping Ren
- Zhejiang Provincial Center for Disease Control and Prevention
- Hangzhou
- China
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Jagunal homolog 1 is a critical regulator of neutrophil function in fungal host defense. Nat Genet 2014; 46:1028-33. [PMID: 25129145 DOI: 10.1038/ng.3070] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 07/25/2014] [Indexed: 01/10/2023]
Abstract
Neutrophils are key innate immune effector cells that are essential to fighting bacterial and fungal pathogens. Here we report that mice carrying a hematopoietic lineage-specific deletion of Jagn1 (encoding Jagunal homolog 1) cannot mount an efficient neutrophil-dependent immune response to the human fungal pathogen Candida albicans. Global glycobiome analysis identified marked alterations in the glycosylation of proteins involved in cell adhesion and cytotoxicity in Jagn1-deficient neutrophils. Functional analysis confirmed marked defects in neutrophil migration in response to Candida albicans infection and impaired formation of cytotoxic granules, as well as defective myeloperoxidase release and killing of Candida albicans. Treatment with granulocyte/macrophage colony-stimulating factor (GM-CSF) protected mutant mice from increased weight loss and accelerated mortality after Candida albicans challenge. Notably, GM-CSF also restored the defective fungicidal activity of bone marrow cells from humans with JAGN1 mutations. These data directly identify Jagn1 (JAGN1 in humans) as a new regulator of neutrophil function in microbial pathogenesis and uncover a potential treatment option for humans.
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46
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Profiling temporal changes in bovine milk lactoferrin glycosylation using lectin microarrays. Food Chem 2014; 165:388-96. [PMID: 25038691 DOI: 10.1016/j.foodchem.2014.05.086] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 04/18/2014] [Accepted: 05/15/2014] [Indexed: 12/27/2022]
Abstract
The bovine milk glycoprotein bovine lactoferrin (bLF) has a variety of biological activities related to its constituent glycans. However, little is known about bLF's oligosaccharide structural changes over the course of lactation. BLF was isolated at 13 time points during the first three months of lactation from three individual cows and glycosylation changes were profiled by lectin microarrays. Substantial profile differences between early and late lactation were observed and accompanying monosaccharide analysis revealed that the occurrence of the non-human sialic acid, N-glycolylneuraminic acid, was greater during early stage milk production. Overall, the data suggested that more diverse complex-type oligosaccharide structures were present on bLF during early lactation with an abundance of oligomannose type glycans in later lactation. The differences in the glycoprofiles of bLF from colostrum to mature milk suggest that these may have different functionality in vivo.
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47
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Smilowitz JT, Lebrilla CB, Mills DA, German JB, Freeman SL. Breast milk oligosaccharides: structure-function relationships in the neonate. Annu Rev Nutr 2014; 34:143-69. [PMID: 24850388 DOI: 10.1146/annurev-nutr-071813-105721] [Citation(s) in RCA: 269] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In addition to providing complete postnatal nutrition, breast milk is a complex biofluid that delivers bioactive components for the growth and development of the intestinal and immune systems. Lactation is a unique opportunity to understand the role of diet in shaping the intestinal environment including the infant microbiome. Of considerable interest is the diversity and abundance of milk glycans that are energetically costly for the mammary gland to produce yet indigestible by infants. Milk glycans comprise free oligosaccharides, glycoproteins, glycopeptides, and glycolipids. Emerging technological advances are enabling more comprehensive, sensitive, and rapid analyses of these different classes of milk glycans. Understanding the impact of inter- and intraindividual glycan diversity on function is an important step toward interventions aimed at improving health and preventing disease. This review discusses the state of technology for glycan analysis and how specific structure-function knowledge is enhancing our understanding of early nutrition in the neonate.
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48
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Cai B, Xie S, Liu F, Simone LC, Caplan S, Qin X, Naslavsky N. Rapid degradation of the complement regulator, CD59, by a novel inhibitor. J Biol Chem 2014; 289:12109-12125. [PMID: 24616098 DOI: 10.1074/jbc.m113.547083] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
There is increased interest in immune-based monoclonal antibody therapies for different malignancies because of their potential specificity and limited toxicity. The activity of some therapeutic monoclonal antibodies is partially dependent on complement-dependent cytolysis (CDC), in which the immune system surveys for invading pathogens, infected cells, and malignant cells and facilitates their destruction. CD59 is a ubiquitously expressed cell-surface glycosylphosphatidylinositol-anchored protein that protects cells from CDC. However, in certain tumors, CD59 expression is enhanced, posing a significant obstacle for treatment, by hindering effective monoclonal antibody-induced CDC. In this study, we used non-small lung carcinoma cells to characterize the mechanism of a novel CD59 inhibitor: the 114-amino acid recombinant form of the 4th domain of intermedilysin (rILYd4), a pore forming toxin secreted by Streptococcus intermedius. We compared the rates of internalization of CD59 in the presence of rILYd4 or anti-CD59 antibodies and determined that rILYd4 induces more rapid CD59 uptake at early time points. Most significantly, upon binding to rILYd4, CD59 is internalized and undergoes massive degradation in lysosomes within minutes. The remaining rILYd4·CD59 complexes recycle to the PM and are shed from the cell. In comparison, upon internalization of CD59 via anti-CD59 antibody binding, the antibody·CD59 complex is recycled via early and recycling endosomes, mostly avoiding degradation. Our study supports a novel role for rILYd4 in promoting internalization and rapid degradation of the complement inhibitor CD59, and highlights the potential for improving CDC-based immunotherapy.
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Affiliation(s)
- Bishuang Cai
- Department of Biochemistry and Molecular Biology and the Fred and Pamela Buffett Cancer Center, The University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Shuwei Xie
- Department of Biochemistry and Molecular Biology and the Fred and Pamela Buffett Cancer Center, The University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Fengming Liu
- Department of Neuroscience and Center for Neurovirology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140
| | - Laura C Simone
- Department of Biochemistry and Molecular Biology and the Fred and Pamela Buffett Cancer Center, The University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Steve Caplan
- Department of Biochemistry and Molecular Biology and the Fred and Pamela Buffett Cancer Center, The University of Nebraska Medical Center, Omaha, Nebraska 68198.
| | - Xuebin Qin
- Department of Neuroscience and Center for Neurovirology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140.
| | - Naava Naslavsky
- Department of Biochemistry and Molecular Biology and the Fred and Pamela Buffett Cancer Center, The University of Nebraska Medical Center, Omaha, Nebraska 68198.
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49
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O'Riordan N, Kane M, Joshi L, Hickey RM. Structural and functional characteristics of bovine milk protein glycosylation. Glycobiology 2014; 24:220-36. [PMID: 24398766 DOI: 10.1093/glycob/cwt162] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Most secreted and cell membrane proteins in mammals are glycosylated. Many of these glycoproteins are also prevalent in milk and play key roles in the biomodulatory properties of milk and ultimately in determining milk's nutritional quality. Although a significant amount of information exists on the types and roles of free oligosaccharides in milk, very little is known about the glycans associated with milk glycoproteins, in particular, the biological properties that are linked to their presence. The main glycoproteins found in bovine milk are lactoferrin, the immunoglobulins, glycomacropeptide, a glycopeptide derived from κ-casein, and the glycoproteins of the milk fat globule membrane. Here, we review the glycoproteins present in bovine milk, the information currently available on their glycosylation and the biological significance of their oligosaccharide chains.
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Affiliation(s)
- Noelle O'Riordan
- Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
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50
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Smilowitz JT, Totten SM, Huang J, Grapov D, Durham HA, Lammi-Keefe CJ, Lebrilla C, German JB. Human milk secretory immunoglobulin a and lactoferrin N-glycans are altered in women with gestational diabetes mellitus. J Nutr 2013; 143:1906-12. [PMID: 24047700 PMCID: PMC3827637 DOI: 10.3945/jn.113.180695] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 06/24/2013] [Accepted: 08/30/2013] [Indexed: 01/01/2023] Open
Abstract
Very little is known about the effects of gestational diabetes mellitus (GDM) on lactation and milk components. Recent reports suggested that hyperglycemia during pregnancy was associated with altered breast milk immune factors. Human milk oligosaccharides (HMOs) and N-glycans of milk immune-modulatory proteins are implicated in modulation of infant immunity. The objective of the current study was to evaluate the effect of GDM on HMO and protein-conjugated glycan profiles in breast milk. Milk was collected at 2 wk postpartum from women diagnosed with (n = 8) or without (n = 16) GDM at week 24-28 in pregnancy. Milk was analyzed for HMO abundances, protein concentrations, and N-glycan abundances of lactoferrin and secretory immunoglobulin A (sIgA). HMOs and N-glycans were analyzed by mass spectrometry and milk lactoferrin and sIgA concentrations were analyzed by the Bradford assay. The data were analyzed using multivariate modeling confirmed with univariate statistics to determine differences between milk of women with compared with women without GDM. There were no differences in HMOs between milk from women with vs. without GDM. Milk from women with GDM compared with those without GDM was 63.6% lower in sIgA protein (P < 0.05), 45% higher in lactoferrin total N-glycans (P < 0.0001), 36-72% higher in lactoferrin fucose and sialic acid N-glycans (P < 0.01), and 32-43% lower in sIgA total, mannose, fucose, and sialic acid N-glycans (P < 0.05). GDM did not alter breast milk free oligosaccharide abundances but decreased total protein and glycosylation of sIgA and increased glycosylation of lactoferrin in transitional milk. The results suggest that maternal glucose dysregulation during pregnancy has lasting consequences that may influence the innate immune protective functions of breast milk.
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Affiliation(s)
| | | | | | - Dmitry Grapov
- West Coast Metabolomics Center, University of California Davis, Davis, CA; and
| | - Holiday A. Durham
- Agricultural Center and Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA
| | - Carol J. Lammi-Keefe
- Agricultural Center and Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA
| | | | - J. Bruce German
- Department of Food Science and Technology
- Foods for Health Institute
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