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Chu C, Rung S, Wang Y, Qu Y, Man Y. Comment on " In Situ Mannosylated Nanotrinity-Mediated Macrophage Remodeling Combats Candida albicans Infection". ACS NANO 2021; 15:3541-3543. [PMID: 33757168 DOI: 10.1021/acsnano.0c07851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chenyu Chu
- Department of Oral Implantology & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Shengan Rung
- Department of Oral Implantology & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yufei Wang
- Department of Oral Implantology & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yili Qu
- Department of Oral Implantology & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yi Man
- Department of Oral Implantology & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Mercer DK, O'Neil DA. Innate Inspiration: Antifungal Peptides and Other Immunotherapeutics From the Host Immune Response. Front Immunol 2020; 11:2177. [PMID: 33072081 PMCID: PMC7533533 DOI: 10.3389/fimmu.2020.02177] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/10/2020] [Indexed: 12/17/2022] Open
Abstract
The purpose of this review is to describe antifungal therapeutic candidates in preclinical and clinical development derived from, or directly influenced by, the immune system, with a specific focus on antimicrobial peptides (AMP). Although the focus of this review is AMP with direct antimicrobial effects on fungi, we will also discuss compounds with direct antifungal activity, including monoclonal antibodies (mAb), as well as immunomodulatory molecules that can enhance the immune response to fungal infection, including immunomodulatory AMP, vaccines, checkpoint inhibitors, interferon and colony stimulating factors as well as immune cell therapies. The focus of this manuscript will be a non-exhaustive review of antifungal compounds in preclinical and clinical development that are based on the principles of immunology and the authors acknowledge the incredible amount of in vitro and in vivo work that has been conducted to develop such therapeutic candidates.
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Tavares LP, Negreiros-Lima GL, Lima KM, E Silva PMR, Pinho V, Teixeira MM, Sousa LP. Blame the signaling: Role of cAMP for the resolution of inflammation. Pharmacol Res 2020; 159:105030. [PMID: 32562817 DOI: 10.1016/j.phrs.2020.105030] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/06/2020] [Accepted: 06/12/2020] [Indexed: 12/14/2022]
Abstract
A complex intracellular signaling governs different cellular responses in inflammation. Extracellular stimuli are sensed, amplified, and transduced through a dynamic cellular network of messengers converting the first signal into a proper response: production of specific mediators, cell activation, survival, or death. Several overlapping pathways are coordinated to ensure specific and timely induction of inflammation to neutralize potential harms to the tissue. Ideally, the inflammatory response must be controlled and self-limited. Resolution of inflammation is an active process that culminates with termination of inflammation and restoration of tissue homeostasis. Comparably to the onset of inflammation, resolution responses are triggered by coordinated intracellular signaling pathways that transduce the message to the nucleus. However, the key messengers and pathways involved in signaling transduction for resolution are still poorly understood in comparison to the inflammatory network. cAMP has long been recognized as an inducer of anti-inflammatory responses and cAMP-dependent pathways have been extensively exploited pharmacologically to treat inflammatory diseases. Recently, cAMP has been pointed out as coordinator of key steps of resolution of inflammation. Here, we summarize the evidence for the role of cAMP at inducing important features of resolution of inflammation.
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Affiliation(s)
- Luciana P Tavares
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil; Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil; Pulmonary and Critical Care Medicine Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA..
| | - Graziele L Negreiros-Lima
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil; Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil.
| | - Kátia M Lima
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil; Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil; Post-Graduation Program in Pharmaceutical Sciences, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil.
| | - Patrícia M R E Silva
- Inflammation Laboratory, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil.
| | - Vanessa Pinho
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil; Department of Morphology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil.
| | - Mauro M Teixeira
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil.
| | - Lirlândia P Sousa
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, Brazil; Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil; Post-Graduation Program in Pharmaceutical Sciences, Faculdade de Farmácia, UFMG, Belo Horizonte, Brazil.
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Aresti Sanz J, El Aidy S. Microbiota and gut neuropeptides: a dual action of antimicrobial activity and neuroimmune response. Psychopharmacology (Berl) 2019; 236:1597-1609. [PMID: 30997526 PMCID: PMC6598950 DOI: 10.1007/s00213-019-05224-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/10/2019] [Indexed: 12/22/2022]
Abstract
The gut microbiota is comprised of a vast variety of microbes that colonize the gastrointestinal tract and exert crucial roles for the host health. These microorganisms, partially via their breakdown of dietary components, are able to modulate immune response, mood, and behavior, establishing a chemical dialogue in the microbiota-gut-brain interphase. Changes in the gut microbiota composition and functionality are associated with multiple diseases, in which altered levels of gut-associated neuropeptides are also detected. Gut neuropeptides are strong neuroimmune modulators; they mediate the communication between the gut microbiota and the host (including gut-brain axis) and have also recently been found to exert antimicrobial properties. This highlights the importance of understanding the interplay between gut neuropeptides and microbiota and their implications on host health. Here, we will discuss how gut neuropeptides help to maintain a balanced microbiota and we will point at the missing gaps that need to be further investigated in order to elucidate whether these molecules are related to neuropsychiatric disorders, which are often associated with gut dysbiosis and altered gut neuropeptide levels.
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Affiliation(s)
- Julia Aresti Sanz
- Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Sahar El Aidy
- Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
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Yu C, Wei S, Han X, Liu H, Wang M, Jiang M, Guo M, Dou J, Zhou C, Ma L. Effective inhibition of Cbf-14 against Cryptococcus neoformans infection in mice and its related anti-inflammatory activity. Fungal Genet Biol 2017; 110:38-47. [PMID: 29221882 DOI: 10.1016/j.fgb.2017.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/21/2017] [Accepted: 11/26/2017] [Indexed: 01/21/2023]
Abstract
Cbf-14 (RLLRKFFRKLKKSV), a designed peptide derived from cathelicidin family AMP, has proven to be potent against drug-resistant bacteria. In the present study, we investigated the anti-cryptococcal activity of Cbf-14 in vitro and in a pulmonary infection mouse model. Sensitivity test indicated that Cbf-14 possessed effective antifungal activity against Cryptococcus neoformans with an MIC of 4-16 µg/ml, and killing experiments showed that fungicidal activity was achieved after only 4 h treatment with Cbf-14 at 4× MIC concentrations in vitro. Meanwhile, Cbf-14 was effective at prolonging the survival of infected mice when compared with controls, and significantly inhibited the secretion of pro-inflammatory cytokines TNF-α, IL-1β and IL-6, suggesting its anti-inflammatory activity against fungal infections. As a positively charged peptide, Cbf-14 was proven to neutralize the negative zeta potential of the fungal cell surface, disrupt the capsule polysaccharide of fungi, and further damage cell membrane integrity. These results were confirmed by flow cytometry analysis of the fluorescence intensity after PI staining, while cell membrane damage could be clearly observed by transmission electron microscopy after Cbf-14 (4× MIC) treatment for 1 h. In addition, Cbf-14 increased the IL-10 levels in cultured RAW 264.7 cells, which were stimulated by C. neoformans infection. The obtained data demonstrated that Cbf-14 could rapidly kill C. neoformans cells in vitro, effectively inhibit C. neoformans induced-infection in mice, and inhibit inflammation in vitro / vivo. Therefore, Cbf-14 could potentially be used for the treatment of fungal infections clinically.
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Affiliation(s)
- Changzhong Yu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Shanshan Wei
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Xiaorong Han
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Hanhan Liu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Mengxiao Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Meiling Jiang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Min Guo
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Jie Dou
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China
| | - Changlin Zhou
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China.
| | - Lingman Ma
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, PR China.
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Experimental Models of Vaginal Candidiasis and Their Relevance to Human Candidiasis. Infect Immun 2016; 84:1255-1261. [PMID: 26883592 DOI: 10.1128/iai.01544-15] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Vulvovaginal candidiasis (VVC) is a high-incidence disease seriously affecting the quality of life of women worldwide, particularly in its chronic, recurrent forms (RVVC), and with no definitive cure or preventive measure. Experimental studies in currently used rat and mouse models of vaginal candidiasis have generated a large mass of data on pathogenicity determinants and inflammation and immune responses of potential importance for the control of human pathology. However, reflection is necessary about the relevance of these rodent models to RVVC. Here we examine the chemical, biochemical, and biological factors that determine or contrast the forms of the disease in rodent models and in women and highlight the differences between them. We also appeal for approaches to improve or replace the current models in order to enhance their relevance to human infection.
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Lakshmaiah Narayana J, Chen JY. Antimicrobial peptides: Possible anti-infective agents. Peptides 2015; 72:88-94. [PMID: 26048089 DOI: 10.1016/j.peptides.2015.05.012] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/10/2015] [Accepted: 05/13/2015] [Indexed: 12/20/2022]
Abstract
Multidrug-resistant bacterial, fungal, viral, and parasitic infections are major health threats. The Infectious Diseases Society of America has expressed concern on the decrease of pharmaceutical companies working on antibiotic research and development. However, small companies, along with academic research institutes, are stepping forward to develop novel therapeutic methods to overcome the present healthcare situation. Among the leading alternatives to current drugs are antimicrobial peptides (AMPs), which are abundantly distributed in nature. AMPs exhibit broad-spectrum activity against a wide variety of bacteria, fungi, viruses, and parasites, and even cancerous cells. They also show potential immunomodulatory properties, and are highly responsive to infectious agents and innate immuno-stimulatory molecules. In recent years, many AMPs have undergone or are undergoing clinical development, and a few are commercially available for topical and other applications. In this review, we outline selected anion and cationic AMPs which are at various stages of development, from preliminary analysis to clinical drug development. Moreover, we also consider current production methods and delivery tools for AMPs, which must be improved for the effective use of these agents.
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Affiliation(s)
- Jayaram Lakshmaiah Narayana
- Doctoral Degree Program in Marine Biotechnology, Institute of Cellular and Orgasmic Biology, Academia Sinica and National Sun-Yat Sen University, Kaohsiung, Taiwan; Marine Research Station, Institute of Cellular and Orgasmic Biology, Academia Sinica, Jiaushi, Ilan, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Orgasmic Biology, Academia Sinica, Jiaushi, Ilan, Taiwan.
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Alpha-melanocyte stimulating hormone: an emerging anti-inflammatory antimicrobial peptide. BIOMED RESEARCH INTERNATIONAL 2014; 2014:874610. [PMID: 25140322 PMCID: PMC4130143 DOI: 10.1155/2014/874610] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/22/2014] [Accepted: 07/01/2014] [Indexed: 12/18/2022]
Abstract
The alpha-melanocyte stimulating hormone (α-MSH) is a neuropeptide belonging to the melanocortin family. It is well known for its anti-inflammatory and antipyretic effects and shares several characteristics with antimicrobial peptides (AMPs). There have been some recent reports about the direct antimicrobial activity of α-MSH against various microbes belonging to both fungal and bacterial pathogens. Similar to α-MSH's anti-inflammatory properties, its C-terminal residues also exhibit antimicrobial activity parallel to that of the entire peptide. This review is focused on the current findings regarding the direct antimicrobial potential and immunomodulatory mechanism of α-MSH and its C-terminal fragments, with particular emphasis on the prospects of α-MSH based peptides as a strong anti-infective agent.
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Rinne P, Silvola JMU, Hellberg S, Stahle M, Liljenback H, Salomaki H, Koskinen E, Nuutinen S, Saukko P, Knuuti J, Saraste A, Roivainen A, Savontaus E. Pharmacological Activation of the Melanocortin System Limits Plaque Inflammation and Ameliorates Vascular Dysfunction in Atherosclerotic Mice. Arterioscler Thromb Vasc Biol 2014; 34:1346-54. [DOI: 10.1161/atvbaha.113.302963] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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