1
|
Onyango LA, Liang J. Manuka honey as a non-antibiotic alternative against Staphylococcus spp. and their small colony variant (SCVs) phenotypes. Front Cell Infect Microbiol 2024; 14:1380289. [PMID: 38868298 PMCID: PMC11168119 DOI: 10.3389/fcimb.2024.1380289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/21/2024] [Indexed: 06/14/2024] Open
Abstract
The antibiotic resistance (ABR) crisis is an urgent global health priority. Staphylococci are among the problematic bacteria contributing to this emergency owing to their recalcitrance to many clinically important antibiotics. Staphylococcal pathogenesis is further complicated by the presence of small colony variants (SCVs), a bacterial subpopulation displaying atypical characteristics including retarded growth, prolific biofilm formation, heightened antibiotic tolerance, and enhanced intracellular persistence. These capabilities severely impede current chemotherapeutics, resulting in chronic infections, poor patient outcomes, and significant economic burden. Tackling ABR requires alternative measures beyond the conventional options that have dominated treatment regimens over the past 8 decades. Non-antibiotic therapies are gaining interest in this arena, including the use of honey, which despite having ancient therapeutic roots has now been reimagined as an alternative treatment beyond just traditional topical use, to include the treatment of an array of difficult-to-treat staphylococcal infections. This literature review focused on Manuka honey (MH) and its efficacy as an anti-staphylococcal treatment. We summarized the studies that have used this product and the technologies employed to study the antibacterial mechanisms that render MH a suitable agent for the management of problematic staphylococcal infections, including those involving staphylococcal SCVs. We also discussed the status of staphylococcal resistance development to MH and other factors that may impact its efficacy as an alternative therapy to help combat ABR.
Collapse
Affiliation(s)
- Laura A. Onyango
- Department of Biology, Trinity Western University, Langley, BC, Canada
| | | |
Collapse
|
2
|
Wang S, Qiu Y, Zhu F. An updated review of functional ingredients of Manuka honey and their value-added innovations. Food Chem 2024; 440:138060. [PMID: 38211407 DOI: 10.1016/j.foodchem.2023.138060] [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: 07/04/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024]
Abstract
Manuka honey (MH) is a highly prized natural product from the nectar of Leptospermum scoparium flowers. Increased competition on the global market drives MH product innovations. This review updates comparative and non-comparative studies to highlight nutritional, therapeutic, bioengineering, and cosmetic values of MH. MH is a good source of phenolics and unique chemical compounds, such as methylglyoxal, dihydroxyacetone, leptosperin glyoxal, methylsyringate and leptosin. Based on the evidence from in vitro, in vivo and clinical studies, multifunctional bioactive compounds of MH have exhibited anti-oxidative, anti-inflammatory, immunomodulatory, anti-microbial, and anti-cancer activities. There are controversial topics related to MH, such as MH grading, safety/efficacy, implied benefits, and maximum levels of contaminants concerned. Artificial intelligence can optimize MH studies related to chemical analysis, toxicity prediction, multi-functional mechanism exploration and product innovation.
Collapse
Affiliation(s)
- Sunan Wang
- Canadian Food and Wine Institute, Niagara College, 135 Taylor Road, Niagara-on-the-Lake, Ontario L0S 1J0, Canada; School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Yi Qiu
- Division of Engineering Science, Faculty of Applied Science and Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario M5S 1A4, Canada
| | - Fan Zhu
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| |
Collapse
|
3
|
Wang S, Ding X, Li Z, Rao F, Xu H, Lu J, Ma X, Zhang M, Xie Z. Comprehensive analyses identify potential biomarkers for encephalitis in HIV infection. Sci Rep 2023; 13:18418. [PMID: 37891420 PMCID: PMC10611703 DOI: 10.1038/s41598-023-45922-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/25/2023] [Indexed: 10/29/2023] Open
Abstract
Human immunodeficiency virus encephalitis (HIVE) is a severe neurological complication after HIV infection. Evidence shows that genetic factors play an important role in HIVE. The aim of the present study was to identify new potential therapeutic targets for HIVE. Differentially expressed gene (DEG), functional annotation and pathway, and protein-protein interaction analyses were performed to identify the hub genes associated with HIVE. Gene co-expression analysis was carried out to confirm the association between the hub genes and HIVE. Finally, the role of the hub genes in HIVE therapy was evaluated by conducting drug-gene interaction analysis. A total of 20 overlapping DEGs closely related to HIVE were identified. Functional annotation and pathway enrichment analysis indicated that the markedly enriched DEG terms included ion transport, type II interferon signaling, and synaptic signaling. Moreover, protein-protein interaction analysis revealed that 10 key HIVE-related genes were hub genes, including SCN8A, CDK5R2, GRM5, SCN2B, IFI44L, STAT1, SLC17A7, ISG15, FGF12, and FGF13. Furthermore, six hub genes were co-expressed with HIVE-associated host genes in human brain tissue. Finally, three hub genes (STAT1, ISG15, and SCN2B) interacted with several inflammation-associated drugs. These findings suggested that SCN8A, CDK5R2, GRM5, SCN2B, IFI44L, STAT1, SLC17A7, ISG15, FGF12, and FGF13 may be new targets for diagnosis and therapy of HIVE.
Collapse
Affiliation(s)
- Shitao Wang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China.
| | - Xiangqian Ding
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Zongyou Li
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Feng Rao
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Hui Xu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Jinghong Lu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Xuelu Ma
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Mengen Zhang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Zhenrong Xie
- The Medical Biobank, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| |
Collapse
|
4
|
Al-Kafaween MA, Alwahsh M, Mohd Hilmi AB, Abulebdah DH. Physicochemical Characteristics and Bioactive Compounds of Different Types of Honey and Their Biological and Therapeutic Properties: A Comprehensive Review. Antibiotics (Basel) 2023; 12:antibiotics12020337. [PMID: 36830249 PMCID: PMC9952753 DOI: 10.3390/antibiotics12020337] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 02/08/2023] Open
Abstract
Honey is considered to be a functional food with health-promoting properties. However, its potential health benefits can be affected by individual composition that varies between honey types. Although studies describing the health benefits of Tualang honey (TH), Kelulut honey (KH), and Sidr honey (SH) are scarce, these honey types showed a comparable therapeutic efficacy to Manuka honey (MH). The purpose of this review is to characterise the physicochemical, biological, and therapeutic properties of TH, KH, and SH. Findings showed that these honeys have antibacterial, antifungal, antiviral, antioxidant, antidiabetic, antiobesity, anticancer, anti-inflammatory and wound-healing properties and effects on the cardiovascular system, nervous system, and respiratory system. The physicochemical characteristics of TH, KH, and SH were compared with MH and discussed, and results showed that they have high-quality contents and excellent biological activity sources. Flavonoids and polyphenols, which act as antioxidants, are two main bioactive molecules present in honey. The activity of honey depends on the type of bee, sources of nectar, and the geographic region where the bees are established. In conclusion, TH, KH, and SH could be considered as natural therapeutic agents for various medicinal purposes compared with MH. Therefore, TH, KH, and SH have a great potential to be developed for modern medicinal use.
Collapse
Affiliation(s)
- Mohammad A. Al-Kafaween
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
- Correspondence: (M.A.A.-K.); (A.B.M.H.); Tel.: +6-099988548 (A.B.M.H.); Fax: +6-096687896 (A.B.M.H.)
| | - Mohammad Alwahsh
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Abu Bakar Mohd Hilmi
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Kuala Nerus 21300, Malaysia
- Correspondence: (M.A.A.-K.); (A.B.M.H.); Tel.: +6-099988548 (A.B.M.H.); Fax: +6-096687896 (A.B.M.H.)
| | - Dina H. Abulebdah
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| |
Collapse
|
5
|
Worsley AL, Lui DH, Ntow-Boahene W, Song W, Good L, Tsui J. The importance of inflammation control for the treatment of chronic diabetic wounds. Int Wound J 2022. [PMID: 36564054 DOI: 10.1111/iwj.14048] [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: 03/21/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/25/2022] Open
Abstract
Diabetic chronic wounds cause massive levels of patient suffering and economic problems worldwide. The state of chronic inflammation arises in response to a complex combination of diabetes mellitus-related pathophysiologies. Advanced treatment options are available; however, many wounds still fail to heal, exacerbating morbidity and mortality. This review describes the chronic inflammation pathophysiologies in diabetic ulcers and treatment options that may help address this dysfunction either directly or indirectly. We suggest that treatments to reduce inflammation within these complex wounds may help trigger healing.
Collapse
Affiliation(s)
- Anna L Worsley
- Royal Veterinary College, Department of Pathobiology and Population Sciences, London, UK.,UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| | - Dennis H Lui
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| | - Winnie Ntow-Boahene
- Royal Veterinary College, Department of Pathobiology and Population Sciences, London, UK.,UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| | - Wenhui Song
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| | - Liam Good
- Royal Veterinary College, Department of Pathobiology and Population Sciences, London, UK
| | - Janice Tsui
- UCL Centre for Biomaterials in Surgical Reconstruction and Regeneration, Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| |
Collapse
|
6
|
Abstract
Dry eye has become an increasingly prevalent public health issue for which there is currently no cure. Manuka honey possesses anti-inflammatory and antioxidant properties that can be used to treat dry eye. The present study aimed to systematically review evidence supporting the treatment of dry eye with manuka honey and quantify this evidence via meta-analysis. Randomised clinical trials that fulfilled the inclusion criteria from database inception until 5 September 2021, were identified through online searches of seven databases, including but not limited to Embase, Medline, and Central. Changes between the point of longest follow-up and baseline subjective symptoms, tear film quality, ocular surface characteristics, adverse events, and compliance were selected for meta-analysis. A total of 288 adult participants with dry eye from five eligible randomised controlled trials were analysed. Compared with the control groups, treatment with manuka honey demonstrated a significant improvement in Ocular Surface Disease Index, Standard Patient Evaluation of Eye Dryness, tear evaporation rate, negative conversion rate of matrix metalloproteinase-9 levels, ocular surface staining, and daily use frequency of lubricant. No serious adverse events were reported, except for temporary stinging and redness, which were generally tolerated. This review found that manuka honey demonstrated promising results for the treatment of dry eye. However, limitations of the included studies and analytical methodology affect the reliability of this conclusion. Therefore, further high-quality randomised clinical trials are required to confirm the efficacy and safety of the use of manuka honey in the treatment of dry eye.
Collapse
Affiliation(s)
- Jindong Hu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Lingwen Kong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Sixing Zhu
- Institute of Science, Technology and Humanities of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mohan Ju
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
| | - Qianfu Zhang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
7
|
Đorđević S, Nedić N, Pavlović A, Milojković-Opsenica D, Tešić Ž, Gašić U. Honey with added value – enriched with rutin and quercetin from Sophora flower. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
8
|
da Silva B, Caon T, Mohr ETB, Biluca FC, Gonzaga LV, Fett R, Dalmarco EM, Costa ACO. Phenolic profile and in vitro anti-inflammatory activity of Mimosa scabrella Bentham honeydew honey in RAW 264.7 murine macrophages. J Food Biochem 2022; 46:e14076. [PMID: 34997588 DOI: 10.1111/jfbc.14076] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/13/2021] [Accepted: 12/27/2021] [Indexed: 12/11/2022]
Abstract
The anti-inflammatory activity is mainly attributed to the phenolic compounds. Once the geographical location affects the phenolic content of honeys, a relationship between the collection spot and the anti-inflammatory effect of bracatinga (Mimosa scabrella Bentham) honeydew honeys was hypothesized. The inhibitory effect of 14 honey samples on NOx, TNF-α, IL-6, IL-12p70, MCP-1, INF-γ, and IL-10 in RAW 264.7 macrophages inflamed by LPS was evaluated. Fourteen phenolic compounds were identified, mainly syringic acid and rutin. Ten honeys inhibited nitrite production; at least six downregulated TNF-α, IL-12p70, MCP-1, and IFN-γ; only four honey samples inhibited IL-6; and one honey sample inhibited IL-10 levels, showing their variable effects on the inflammatory markers. Principal component analysis grouped samples according to the phenolic content and downregulation of specific inflammatory markers. The bracatinga honeydew honey effectiveness was associated with geographical location, as samples from areas with higher density and diversity of plants had a more significant anti-inflammatory effect. PRACTICAL APPLICATIONS: The present research study investigated the anti-inflammatory potential of bracatinga honeydew honey samples collected from regions with different vegetation coverages. Honey samples collected from locations presenting greater forest diversity and density inhibited inflammatory markers more efficiently. This study reinforces the role of the bracatinga honeydew honey in preventing inflammatory processes and the importance of preserving forests so that products with a greater diversity of compounds and consequently more active can be obtained.
Collapse
Affiliation(s)
- Bibiana da Silva
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Thiago Caon
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianopolis, Brazil
| | | | - Fabíola Carina Biluca
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Luciano Valdomiro Gonzaga
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Roseane Fett
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Brazil
| | | | | |
Collapse
|
9
|
Uversky VN, Albar AH, Khan RH, Redwan EM. Multifunctionality and intrinsic disorder of royal jelly proteome. Proteomics 2021; 21:e2000237. [PMID: 33463023 DOI: 10.1002/pmic.202000237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 12/16/2020] [Accepted: 01/11/2021] [Indexed: 12/11/2022]
Abstract
Royal Jelly (RJ) is a gelatinous white-yellowish fluid, possessing a sour taste and a slight phenolic smell that is secreted by the hypopharyngeal and mandibular salivary glands of the nurse honeybees, and is used in nutrition of larvae and adult queens. Similar to other substances associated with the activities of honeybees, RJ not only contains nutritive components, such as carbohydrates, proteins, peptides, lipids, vitamins, and mineral salts, but also represents a natural ingredient with cosmetic and health-promoting properties. RJ is characterized by remarkable multifunctionality, possessing numerous biological activities. Although this multifunctionality of RJ can be considered as a consequence of its complex nature, many proteins and peptides in RJ are polyfunctional entities themselves. In this article, we show that RJ proteins contain different levels of intrinsic disorder, have sites of post-translational modifications, can be found in multiple isoforms, and many of them possess disorder-based binding sites, suggesting that the conformational ensembles of the RJ proteins might undergo change as a result of their interaction with specific binding partners. All these observations suggest that the multifunctionality of proteins and peptides from RJ is determined by their structural heterogeneity and polymorphism, and serve as an illustration of the protein structure-function continuum concept.
Collapse
Affiliation(s)
- Vladimir N Uversky
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah 21589 80203, Saudi Arabia.,Protein Research Group, Institute for Biological Instrumentation of the Russian Academy of Sciences, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", Pushchino, Moscow region 142290, Russia.,Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Abdulgader H Albar
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah 21589 80203, Saudi Arabia
| | - Rizwan H Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Elrashdy M Redwan
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah 21589 80203, Saudi Arabia
| |
Collapse
|
10
|
Ranneh Y, Akim AM, Hamid HA, Khazaai H, Fadel A, Zakaria ZA, Albujja M, Bakar MFA. Honey and its nutritional and anti-inflammatory value. BMC Complement Med Ther 2021; 21:30. [PMID: 33441127 PMCID: PMC7807510 DOI: 10.1186/s12906-020-03170-5] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/29/2020] [Indexed: 02/08/2023] Open
Abstract
Inflammation is the main key role in developing chronic diseases including cancer, cardiovascular diseases, diabetes, arthritis, and neurodegenerative diseases which possess a huge challenge for treatment. With massively compelling evidence of the role played by nutritional modulation in preventing inflammation-related diseases, there is a growing interest into the search for natural functional foods with therapeutic and preventive actions. Honey, a nutritional healthy product, is produced mainly by two types of bees: honeybee and stingless bee. Since both types of honey possess distinctive phenolic and flavonoid compounds, there is recently an intensive interest in their biological and clinical actions against inflammation-mediated chronic diseases. This review shed the light specifically on the bioavailability and bioaccessibility of honey polyphenols and highlight their roles in targeting inflammatory pathways in gastrointestinal tract disorders, edema, cancer, metabolic and cardiovascular diseases and gut microbiota.
Collapse
Affiliation(s)
- Yazan Ranneh
- Department of Technology and Natural Resources, Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia, 86400, Pagoh, Johor, Malaysia
| | - Abdah Md Akim
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
| | - Hasiah Ab Hamid
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Huzwah Khazaai
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Abdulmannan Fadel
- Sport and Exercises Sciences School, Faculty of Science, Liverpool John Moores University, Liverpool, UK
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Mohammed Albujja
- Department of Forensic Biology, Faculty of Forensic Sciences, Naif Arab University of Security Sciences, Riyadh, 14812, Saudi Arabia
| | - Mohd Fadzelly Abu Bakar
- Department of Technology and Natural Resources, Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia, 86400, Pagoh, Johor, Malaysia
| |
Collapse
|
11
|
Minden-Birkenmaier BA, Smith RA, Radic MZ, van der Merwe M, Bowlin GL. Manuka Honey Reduces NETosis on an Electrospun Template Within a Therapeutic Window. Polymers (Basel) 2020; 12:polym12061430. [PMID: 32604824 PMCID: PMC7362002 DOI: 10.3390/polym12061430] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 12/23/2022] Open
Abstract
Manuka honey, a topical wound treatment used to eradicate bacteria, resolve inflammation, and promote wound healing, is a focus in the tissue engineering community as a tissue template additive. However, its effect on neutrophil extracellular trap formation (NETosis) on a tissue engineering template has yet to be examined. As NETosis has been implicated in chronic inflammation and fibrosis, the reduction in this response within the wound environment is of interest. In this study, Manuka honey was incorporated into electrospun templates with large (1.7–2.2 µm) and small (0.25–0.5 µm) diameter fibers at concentrations of 0.1%, 1%, and 10%. Template pore sizes and honey release profiles were quantified, and the effect on the NETosis response of seeded human neutrophils was examined through fluorescence imaging and myeloperoxidase (MPO) analysis. The incorporation of 0.1% and 1% Manuka honey decreased NETosis on the template surface at both 3 and 6 h, while 10% honey exacerbated the NETosis response. Additionally, 0.1% and 1% Manuka honey reduced the MMP-9 release of the neutrophils at both timepoints. These data indicate a therapeutic window for Manuka honey incorporation into tissue engineering templates for the reduction in NETosis. Future in vivo experimentation should be conducted to translate these results to a physiological wound environment.
Collapse
Affiliation(s)
- Benjamin A. Minden-Birkenmaier
- Department of Biomedical Engineering, University of Memphis, 330 Engineering Technology Building, Memphis, TN 38152, USA;
| | - Richard A. Smith
- Department of Orthopaedic Surgery & Biomedical Engineering, University of Tennessee Health Science Center, E228A Coleman Building, 956 Court Avenue, Memphi, TN 38163, USA;
| | - Marko Z. Radic
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, 201 Molecular Science Building, 858 Madison Ave., Memphis, TN 38152, USA;
| | - Marie van der Merwe
- School of Health Studies, University of Memphis, Fieldhouse 310, Memphis, TN 38152, USA;
| | - Gary L. Bowlin
- Department of Biomedical Engineering, University of Memphis, 330 Engineering Technology Building, Memphis, TN 38152, USA;
- Correspondence: ; Tel.: +(901)-678-2670
| |
Collapse
|