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de Moraes DC, Rollin-Pinheiro R, Pinto MDCFR, Domingos LTS, Barreto-Bergter E, Ferreira-Pereira A. Antifungal activity of β-lapachone against a fluconazole-resistant Candida auris strain. Braz J Microbiol 2024; 55:2593-2601. [PMID: 38743245 PMCID: PMC11405563 DOI: 10.1007/s42770-024-01375-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/04/2024] [Indexed: 05/16/2024] Open
Abstract
Candida spp. can be found in the human microbiome. However, immunocompromised patients are likely to develop invasive Candida infections, with mortality rates higher than 50%. The discovery of C. auris, a species that rapidly acquire antifungal resistance, increased the concern about Candida infections. The limited number of antifungal agents and the high incidence of resistance to them make imperative the development of new antifungal drugs. β-lapachone is a biological active naphthoquinone that displays antifungal activity against C. albicans and C. glabrata. The aim of this study was to evaluate if this substance affects C. auris growth and elucidate its mechanism of action. A fluconazole-resistant C. auris isolate was used in this study. The antifungal activity of β-lapachone was determined through microbroth dilution assays, and its mechanism of action was evaluated using fluorescent probes. Interaction with fluconazole and amphotericin B was assessed by disk diffusion assay and checkerboard. β-lapachone inhibited planktonic C. auris cell growth by 92.7%, biofilm formation by 84.9%, and decrease the metabolism of preformed biofilms by 87.1% at 100 µg/ml. At 100 µg/ml, reductions of 30% and 59% of Calcofluor White and Nile red fluorescences were observed, indicating that β-lapachone affects cell wall chitin and neutral lipids content, respectively. Also, the ratio 590 nm/529 nm of JC-1 decreased 52%, showing that the compound affects mitochondria. No synergism was observed between β-lapachone and fluconazole or amphotericin B. Data show that β-lapachone may be a promising candidate to be used as monotherapy to treat C. auris resistant infections.
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Affiliation(s)
- Daniel Clemente de Moraes
- Universidade Estácio de Sá, 24020-340, Centro, Niterói, RJ, Brazil
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil
| | - Rodrigo Rollin-Pinheiro
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil
| | - Maria do Carmo Freire Ribeiro Pinto
- Instituto de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil
| | - Levy Tenório Sousa Domingos
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil
| | - Eliana Barreto-Bergter
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil
| | - Antonio Ferreira-Pereira
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, 21941-902, Rio de Janeiro-RJ, Brazil.
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Marsaux B, Moens F, Vandevijver G, Marzorati M, van de Wiele T. Candida species-specific colonization in the healthy and impaired human gastrointestinal tract as simulated using the Mucosal Ileum-SHIME® model. FEMS Microbiol Ecol 2024; 100:fiae113. [PMID: 39169462 DOI: 10.1093/femsec/fiae113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 06/14/2024] [Accepted: 08/20/2024] [Indexed: 08/23/2024] Open
Abstract
Candida species primarily exist as harmless commensals in the gastrointestinal tract of warm-blooded animals. However, they can also cause life-threatening infections, which are often associated with gut microbial dysbiosis. Identifying the microbial actors that restrict Candida to commensalism remains a significant challenge. In vitro models could enable a mechanistic study of the interactions between Candida and simulated colon microbiomes. Therefore, this study aimed to elucidate the spatial and temporal colonization kinetics of specific Candida, including C. albicans, C. tropicalis, and C. parapsilosis, and their relative Nakaseomyces glabratus, by using an adapted SHIME® model, simulating the ileum, and proximal and distal colons. We monitored fungal and bacterial colonization kinetics under conditions of eubiosis (commensal lifestyle) and antibiotic-induced dysbiosis (pathogenic lifestyle). Our findings highlighted the variability in the colonization potential of Candida species across different intestinal regions. The ileum compartment proved to be the most favourable environment for C. albicans and C. parapsilosis under conditions of eubiosis. Antibiotic-induced dysbiosis resulted in resurgence of opportunistic Candida species, especially C. tropicalis and C. albicans. Future research should focus on identifying specific bacterial species influencing Candida colonization resistance and explore the long-term effects of antibiotics on the mycobiome and bacteriome.
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Affiliation(s)
- Benoît Marsaux
- ProDigest B.V., 9052 Ghent, Belgium
- CMET, Ghent University, 9000 Ghent, Belgium
| | | | | | - Massimo Marzorati
- ProDigest B.V., 9052 Ghent, Belgium
- CMET, Ghent University, 9000 Ghent, Belgium
| | - Tom van de Wiele
- ProDigest B.V., 9052 Ghent, Belgium
- CMET, Ghent University, 9000 Ghent, Belgium
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Mohamed EA, El-Zahed MM. Anticandidal applications of selenium nanoparticles biosynthesized with Limosilactobacillus fermentum (OR553490). DISCOVER NANO 2024; 19:115. [PMID: 38980559 PMCID: PMC11233486 DOI: 10.1186/s11671-024-04055-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/12/2024] [Indexed: 07/10/2024]
Abstract
Candida albicans is one of the most dangerous pathogenic fungi in the world, according to the classification of the World Health Organization, due to the continued development of its resistance to currently available anticandidal agents. To overcome this problem, the current work provided a simple, one-step, cost-effective, and safe technique for the biosynthesis of new functionalized anticandidal selenium nanoparticles (Se NPs) against C. albicans ATCC10231 using the cell-free supernatant of Limosilactobacillus fermentum (OR553490) strain. The bacterial strain was isolated from yogurt samples available in supermarkets, in Damietta, Egypt. The mixing ratio of 1:9 v/v% between cell-free bacterial metabolites and sodium selenite (5 mM) for 72 h at 37 °C were the optimum conditions for Se NPs biosynthesis. Ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray diffraction (XRD), Zeta analyses, and elemental analysis system (EDS) were used to evaluate the optimized Se NPs. The Se NPs absorption peak appeared at 254 nm. Physicochemical analysis of Se NPs revealed the crystalline-shaped and well-dispersed formation of NPs with an average particle size of 17-30 nm. Se NPs have - 11.8 mV, as seen by the zeta potential graph. FT-IR spectrum displayed bands of symmetric and asymmetric amines at 3279.36 cm-1 and 2928.38 cm-1, aromatic and aliphatic (C-N) at 1393.32 cm-1 and 1237.11.37 cm-1 confirming the presence of proteins as stabilizing and capping agents. Se NPs acted as a superior inhibitor of C. albicans with an inhibition zone of 26 ± 0.03 mm and MIC value of 15 µg/mL compared to one of the traditional anticandidal agent, miconazole, which revealed 18 ± 0.14 mm and 75 µg/mL. The cytotoxicity test shows that Se NPs have a low toxic effect on the normal keratinocyte (IC50 ≈ 41.5 μg/mL). The results indicate that this green synthesis of Se NPs may have a promising potential to provide a new strategy for drug therapy.
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Affiliation(s)
- Esraa Ali Mohamed
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, 34517, Egypt
| | - Mohamed Marzouk El-Zahed
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, 34517, Egypt.
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Renga G, Pariano M, D'Onofrio F, Pieraccini G, Di Serio C, Villella VR, Abbate C, Puccetti M, Giovagnoli S, Stincardini C, Bellet MM, Ricci M, Costantini C, Oikonomou V, Romani L. The immune and microbial homeostasis determines the Candida-mast cells cross-talk in celiac disease. Life Sci Alliance 2024; 7:e202302441. [PMID: 38719750 PMCID: PMC11079604 DOI: 10.26508/lsa.202302441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Celiac disease (CD) is an autoimmune enteropathy resulting from an interaction between diet, genome, and immunity. Although many patients respond to a gluten-free diet, in a substantive number of individuals, the intestinal injury persists. Thus, other factors might amplify the ongoing inflammation. Candida albicans is a commensal fungus that is well adapted to the intestinal life. However, specific conditions increase Candida pathogenicity. The hypothesis that Candida may be a trigger in CD has been proposed after the observation of similarity between a fungal wall component and two CD-related gliadin T-cell epitopes. However, despite being implicated in intestinal disorders, Candida may also protect against immune pathologies highlighting a more intriguing role in the gut. Herein, we postulated that a state of chronic inflammation associated with microbial dysbiosis and leaky gut are favorable conditions that promote C. albicans pathogenicity eventually contributing to CD pathology via a mast cells (MC)-IL-9 axis. However, the restoration of immune and microbial homeostasis promotes a beneficial C. albicans-MC cross-talk favoring the attenuation of CD pathology to alleviate CD pathology and symptoms.
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Affiliation(s)
- Giorgia Renga
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marilena Pariano
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Fiorella D'Onofrio
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Claudia Di Serio
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Valeria Rachela Villella
- European Institute for Research in Cystic Fibrosis (IERFC-Onlus), San Raffaele Scientific Institute, Milan, Italy
| | - Carlo Abbate
- European Institute for Research in Cystic Fibrosis (IERFC-Onlus), San Raffaele Scientific Institute, Milan, Italy
| | - Matteo Puccetti
- https://ror.org/00x27da85 Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Stefano Giovagnoli
- https://ror.org/00x27da85 Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Claudia Stincardini
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marina Maria Bellet
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Maurizio Ricci
- https://ror.org/00x27da85 Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Claudio Costantini
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Vasileios Oikonomou
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Luigina Romani
- https://ror.org/00x27da85 Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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Katsipoulaki M, Stappers MHT, Malavia-Jones D, Brunke S, Hube B, Gow NAR. Candida albicans and Candida glabrata: global priority pathogens. Microbiol Mol Biol Rev 2024; 88:e0002123. [PMID: 38832801 PMCID: PMC11332356 DOI: 10.1128/mmbr.00021-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Abstract
SUMMARYA significant increase in the incidence of Candida-mediated infections has been observed in the last decade, mainly due to rising numbers of susceptible individuals. Recently, the World Health Organization published its first fungal pathogen priority list, with Candida species listed in medium, high, and critical priority categories. This review is a synthesis of information and recent advances in our understanding of two of these species-Candida albicans and Candida glabrata. Of these, C. albicans is the most common cause of candidemia around the world and is categorized as a critical priority pathogen. C. glabrata is considered a high-priority pathogen and has become an increasingly important cause of candidemia in recent years. It is now the second most common causative agent of candidemia in many geographical regions. Despite their differences and phylogenetic divergence, they are successful as pathogens and commensals of humans. Both species can cause a broad variety of infections, ranging from superficial to potentially lethal systemic infections. While they share similarities in certain infection strategies, including tissue adhesion and invasion, they differ significantly in key aspects of their biology, interaction with immune cells, host damage strategies, and metabolic adaptations. Here we provide insights on key aspects of their biology, epidemiology, commensal and pathogenic lifestyles, interactions with the immune system, and antifungal resistance.
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Affiliation(s)
- Myrto Katsipoulaki
- Department of Microbial Pathogenicity Mechanisms, Hans Knoell Institute, Jena, Germany
| | - Mark H. T. Stappers
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Dhara Malavia-Jones
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Sascha Brunke
- Department of Microbial Pathogenicity Mechanisms, Hans Knoell Institute, Jena, Germany
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Hans Knoell Institute, Jena, Germany
- Institute of Microbiology, Friedrich Schiller University, Jena, Germany
| | - Neil A. R. Gow
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
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Calvigioni M, Mazzantini D, Celandroni F, Ghelardi E. Animal and In Vitro Models as Powerful Tools to Decipher the Effects of Enteric Pathogens on the Human Gut Microbiota. Microorganisms 2023; 12:67. [PMID: 38257894 PMCID: PMC10818369 DOI: 10.3390/microorganisms12010067] [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: 11/14/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Examining the interplay between intestinal pathogens and the gut microbiota is crucial to fully comprehend the pathogenic role of enteropathogens and their broader impact on human health. Valid alternatives to human studies have been introduced in laboratory practice to evaluate the effects of infectious agents on the gut microbiota, thereby exploring their translational implications in intestinal functionality and overall health. Different animal species are currently used as valuable models for intestinal infections. In addition, considering the recent advances in bioengineering, futuristic in vitro models resembling the intestinal environment are also available for this purpose. In this review, the impact of the main human enteropathogens (i.e., Clostridioides difficile, Campylobacter jejuni, diarrheagenic Escherichia coli, non-typhoidal Salmonella enterica, Shigella flexneri and Shigella sonnei, Vibrio cholerae, and Bacillus cereus) on intestinal microbial communities is summarized, with specific emphasis on results derived from investigations employing animal and in vitro models.
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Affiliation(s)
| | | | | | - Emilia Ghelardi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56127 Pisa, Italy; (M.C.)
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Gaziano R, Sabbatini S, Monari C. The Interplay between Candida albicans, Vaginal Mucosa, Host Immunity and Resident Microbiota in Health and Disease: An Overview and Future Perspectives. Microorganisms 2023; 11:1211. [PMID: 37317186 DOI: 10.3390/microorganisms11051211] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/02/2023] [Accepted: 05/02/2023] [Indexed: 06/16/2023] Open
Abstract
Vulvovaginal candidiasis (VVC), which is primarily caused by Candida albicans, is an infection that affects up to 75% of all reproductive-age women worldwide. Recurrent VVC (RVVC) is defined as >3 episodes per year and affects nearly 8% of women globally. At mucosal sites of the vagina, a delicate and complex balance exists between Candida spp., host immunity and local microbial communities. In fact, both immune response and microbiota composition play a central role in counteracting overgrowth of the fungus and maintaining homeostasis in the host. If this balance is perturbed, the conditions may favor C. albicans overgrowth and the yeast-to-hyphal transition, predisposing the host to VVC. To date, the factors that affect the equilibrium between Candida spp. and the host and drive the transition from C. albicans commensalism to pathogenicity are not yet fully understood. Understanding the host- and fungus-related factors that drive VVC pathogenesis is of paramount importance for the development of adequate therapeutic interventions to combat this common genital infection. This review focuses on the latest advances in the pathogenic mechanisms implicated in the onset of VVC and also discusses novel potential strategies, with a special focus on the use of probiotics and vaginal microbiota transplantation in the treatment and/or prevention of recurrent VVC.
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Affiliation(s)
- Roberta Gaziano
- Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Samuele Sabbatini
- Department of Medicine and Surgery, Medical Microbiology Section, University of Perugia, 06132 Perugia, Italy
| | - Claudia Monari
- Department of Medicine and Surgery, Medical Microbiology Section, University of Perugia, 06132 Perugia, Italy
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Karnwal A, Shrivastava S, Al-Tawaha ARMS, Kumar G, Singh R, Kumar A, Mohan A, Yogita, Malik T. Microbial Biosurfactant as an Alternate to Chemical Surfactants for Application in Cosmetics Industries in Personal and Skin Care Products: A Critical Review. BIOMED RESEARCH INTERNATIONAL 2023; 2023:2375223. [PMID: 37090190 PMCID: PMC10118887 DOI: 10.1155/2023/2375223] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/16/2023] [Accepted: 03/22/2023] [Indexed: 04/25/2023]
Abstract
Cosmetics and personal care items are used worldwide and administered straight to the skin. The hazardous nature of the chemical surfactant utilized in the production of cosmetics has caused alarm on a global scale. Therefore, bacterial biosurfactants (BS) are becoming increasingly popular in industrial product production as a biocompatible, low-toxic alternative surfactant. Chemical surfactants can induce allergic responses and skin irritations; thus, they should be replaced with less harmful substances for skin health. The cosmetic industry seeks novel biological alternatives to replace chemical compounds and improve product qualities. Most of these chemicals have a biological origin and can be obtained from plant, bacterial, fungal, and algal sources. Various biological molecules have intriguing capabilities, such as biosurfactants, vitamins, antioxidants, pigments, enzymes, and peptides. These are safe, biodegradable, and environmentally friendly than chemical options. Plant-based biosurfactants, such as saponins, offer numerous advantages over synthetic surfactants, i.e., biodegradable, nontoxic, and environmentally friendly nature. Saponins are a promising source of natural biosurfactants for various industrial and academic applications. However, microbial glycolipids and lipopeptides have been used in biotechnology and cosmetics due to their multifunctional character, including detergency, emulsifying, foaming, and skin moisturizing capabilities. In addition, some of them have the potential to be used as antibacterial agents. In this review, we like to enlighten the application of microbial biosurfactants for replacing chemical surfactants in existing cosmetic and personal skincare pharmaceutical formulations due to their antibacterial, skin surface moisturizing, and low toxicity characteristics.
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Affiliation(s)
- Arun Karnwal
- Department of Microbiology, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Seweta Shrivastava
- Department of Plant Pathology, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | | | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Rattandeep Singh
- Department of Molecular Biology and Genetic Engineering, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Anupam Kumar
- Department of Biotechnology, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Anand Mohan
- Department of Biotechnology, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Yogita
- Department of Microbiology, School of Bioengineering & Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Tabarak Malik
- Department of Biomedical Sciences, Institute of Health, Jimma University, Ethiopia
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Wang X, Geng S. Diet-gut microbial interactions influence cancer immunotherapy. Front Oncol 2023; 13:1138362. [PMID: 37035188 PMCID: PMC10081683 DOI: 10.3389/fonc.2023.1138362] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
The gut microbiome is involved in the absorption and metabolism of host nutrients and modulates the immune response, affecting the efficacy of immunotherapy for cancer. In patients receiving immunotherapy, appropriate modifications of gut microbiota are thought to improve therapeutic response. Of all the factors that influence the gut microbiota, diet is the most influential and modifiable. Healthy dietary patterns as well as some specific dietary components can help the growth of beneficial microbiota in the gut, thereby protecting against cancers and promoting human health. A growing number of researches have confirmed the positive effects of a diet-gut microbiota approach as an adjuvant therapy for cancer, but controversy remains. Here, we summarize the interactions between diet and gut microbes based on previous studies, and discuss the role of gut microbiota-based dietary strategies in tumor immunotherapy, with the potential mechanisms of actions also intensively discussed.
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Affiliation(s)
- Xue Wang
- Department of Oncology, First People's Hospital of Guangyuan, Guangyuan, China
| | - Shitao Geng
- Department of Emergency, First Naval Hospital of Southern Theater Command, Zhanjiang, China
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