1
|
Zanata SM, El-Shafai NM, Beltagi AM, Alshehri S, El-Sherbiny M, El-Mehasseb IM. Bio-study: Modeling of natural nanomolecules as a nanocarrier surface for antioxidant and glucose biosensor. Int J Biol Macromol 2024; 264:130634. [PMID: 38460624 DOI: 10.1016/j.ijbiomac.2024.130634] [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: 01/07/2024] [Revised: 02/25/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
The nature of nano molecules as a self-assembled nanocomposite surface depends on the nanoparticles of sodium butyrate, cellulose, and pycnogenol; the synthesis is achieved via precipitation and grinding methods. The excellent functionalized surface of nanocomposite (NCP) enables the loading of the selected drugs, where the efficiency of the NCP surface arrived at 92.2 %. The electrochemical behavior emphasized the success of a functionalized NCP surface for incorporation with drugs for the drug delivery system, the results of cytotoxicity detect the effect of NCP on the mouse normal liver (BNL) cells, where the high and low concentrations on the BNL cells have a safe dose. Cell viability with BNL cells was reported at 101.8 % with10 μL and 100.12 % with 100 μL, the interaction between the NCP and the human serum albumin (HSA) at room temperature. The low interaction rate with the glutamate and increased binding with the oxidized glutathione disulfide (GSSG) and reduced glutathione (SGH) reflect the antioxidant activity of NCP. The strong binding of NCP with biomolecules such as glucose is referred to as the biosensor property. The results recommend that NCP is an excellent nanocarrier for drug delivery and glucose biosensors for diabetes.
Collapse
Affiliation(s)
- Samar M Zanata
- Nanotechnology Center, Chemistry Department, Faculty of Science, Kafrelsheikh University 33516, Egypt
| | - Nagi M El-Shafai
- Nanotechnology Center, Chemistry Department, Faculty of Science, Kafrelsheikh University 33516, Egypt.
| | - Amr M Beltagi
- Nanotechnology Center, Chemistry Department, Faculty of Science, Kafrelsheikh University 33516, Egypt
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, P.O. Box 71666, Riyadh, 11597, Saudi Arabia
| | - Ibrahim M El-Mehasseb
- Nanotechnology Center, Chemistry Department, Faculty of Science, Kafrelsheikh University 33516, Egypt
| |
Collapse
|
2
|
Rajaratnam S, Soman AP, Phalguna KS, Pradhan SS, Manjunath M, Rao RK, Dandamudi RB, Bhagavatham SKS, Pulukool SK, Rathnakumar S, Kocherlakota S, Pargaonkar A, Veeranna RP, Arumugam N, Almansour AI, Choudhary B, Sivaramakrishnan V. Integrated Omic Analysis Delineates Pathways Modulating Toxic TDP-43 Protein Aggregates in Amyotrophic Lateral Sclerosis. Cells 2023; 12:cells12091228. [PMID: 37174628 PMCID: PMC10177613 DOI: 10.3390/cells12091228] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/07/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a multi-systemic, incurable, amyloid disease affecting the motor neurons, resulting in the death of patients. The disease is either sporadic or familial with SOD1, C9orf72, FUS, and TDP-43 constituting the majority of familial ALS. Multi-omics studies on patients and model systems like mice and yeast have helped in understanding the association of various signaling and metabolic pathways with the disease. The yeast model system has played a pivotal role in elucidating the gene amyloid interactions. We carried out an integrated transcriptomic and metabolomic analysis of the TDP-43 expressing yeast model to elucidate deregulated pathways associated with the disease. The analysis shows the deregulation of the TCA cycle, single carbon metabolism, glutathione metabolism, and fatty acid metabolism. Transcriptomic analysis of GEO datasets of TDP-43 expressing motor neurons from mice models of ALS and ALS patients shows considerable overlap with experimental results. Furthermore, a yeast model was used to validate the obtained results using metabolite addition and gene knock-out experiments. Taken together, our result shows a potential role for the TCA cycle, cellular redox pathway, NAD metabolism, and fatty acid metabolism in disease. Supplementation of reduced glutathione, nicotinate, and the keto diet might help to manage the disease.
Collapse
Affiliation(s)
- Saiswaroop Rajaratnam
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Akhil P Soman
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
- Central Water and Power Research Station, Khadakwasla, Pune 411024, Maharashtra, India
| | - Kanikaram Sai Phalguna
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Sai Sanwid Pradhan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Meghana Manjunath
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru 560100, Karnataka, India
| | - Raksha Kanthavara Rao
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru 560100, Karnataka, India
| | | | - Sai Krishna Srimadh Bhagavatham
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Sujith Kumar Pulukool
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Sriram Rathnakumar
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| | - Sai Kocherlakota
- Laboratory of Cell Metabolism, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Ashish Pargaonkar
- Application Division, Agilent Technologies Ltd., Bengaluru 560066, Karnataka, India
| | - Ravindra P Veeranna
- Department of Biochemistry, Council of Scientific & Industrial Research (CSIR)-Central Food Technological Research Institute (CFTRI), Mysuru 570020, Karnataka, India
| | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Bibha Choudhary
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru 560100, Karnataka, India
| | - Venketesh Sivaramakrishnan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur 515134, Andhra Pradesh, India
| |
Collapse
|
3
|
Sun X, Wang Y, Li X, Wang M, Dong J, Tang W, Lei Z, Guo Y, Li M, Li Y. Alterations of gut fungal microbiota in patients with rheumatoid arthritis. PeerJ 2022; 10:e13037. [PMID: 35251791 PMCID: PMC8896017 DOI: 10.7717/peerj.13037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 02/09/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a systemic autoimmune disease, in addition, gut microbiota plays an important role in the etiology of RA. However, our understanding of alterations to the gut fungal microbiota in Chinese population with RA is still limited. METHODS Serum samples were obtained from 62 patients with RA, and 39 age- and gender-matched healthy controls (HCs). Fecal samples were obtained from 42 RA patients and 39 HCs. Fecal fungal microbiota targeting internal transcribed spacer region 2 (ITS2) rRNA genes was investigated using MiSeq sequencing, as well as their associations with some diagnostic biomarkers for RA. RESULTS Our results showed that the fungal diversity did not alter in RA patients but taxonomic composition of the fecal fungal microbiota did. The gut mycobiota of RA patients was characterized by decreased abundance of Pholiota, Scedosporium, and Trichosporon. The linear discriminant analysis (LDA) effect size analysis (LEfSe) analysis identified several RA-enriched fungal genera, which were positively correlated with most RA biomarkers. Furthermore, since RA is an age- and gende-related disease, we classified RA patients into subgroups with age and gender and analyzed the sequencing results. Our data demonstrated that Wallemia and Irpex were the most discriminatory against RA patients over 60 years old, while Pseudeurotiaceae was the most discriminatory against female RA patients. CONCLUSIONS The case-control study presented here confirmed the alterations of gut fungal microbiota in Chinese patients with RA, and we speculated that the fungal dysbiosis may contribute to RA development.
Collapse
Affiliation(s)
- Xiaoyu Sun
- First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yushuang Wang
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Xinke Li
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Meiling Wang
- Dalian Municipal Central Hospital, Dalian, Liaoning, China
| | - Jianyi Dong
- Laboratory Animal Center, Dalian Medical University, Dalian, Liaoning, China
| | - Wei Tang
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Zengjie Lei
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Yuling Guo
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Ming Li
- College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Yuyuan Li
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| |
Collapse
|
4
|
Zhu W, Gao J, Liu H, Liu J, Jin T, Qin N, Ren X, xia X. Antibiofilm effect of sodium butyrate against Vibrio parahaemolyticus. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108422] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
5
|
Malacrida AM, Salci TP, Negri M, Svidzinski TI. Insight into the antifungals used to address human infection due to Trichosporon spp.: a scoping review. Future Microbiol 2021; 16:1277-1288. [PMID: 34689610 PMCID: PMC8544482 DOI: 10.2217/fmb-2021-0048] [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] [Indexed: 11/21/2022] Open
Abstract
Trichosporonosis infections have been increasing worldwide. Providing adequate treatment for these infections remains a challenge. This scoping review contains information about potential antifungals to treat this pathology. Using online databases, we found 76 articles published between 2010 and 2020 related to this topic. Classic antifungals, molecules and biomolecules, repositioned drugs and natural products have been tested against species of Trichosporon. Experimental research has lacked depth or was limited to in vitro and in vivo tests, so there are no promising new candidates for the clinical treatment of patients with trichosporonosis. Furthermore, most studies did not present appropriate scientific criteria for drug tests, compromising their quality.
Collapse
Affiliation(s)
- Amanda M Malacrida
- Departament of Clinical Analyses and Biomedicine, Universidade Estadual de Maringá, Maringá, Paraná, CEP, 87020-900, Brazil
| | - Tânia P Salci
- Departament of Pharmacy and Science, Faculdade Integrado de Campo Mourão, Campo Mourão, Paraná, CEP, 87300-970, Brazil
| | - Melyssa Negri
- Departament of Clinical Analyses and Biomedicine, Universidade Estadual de Maringá, Maringá, Paraná, CEP, 87020-900, Brazil
| | - Terezinha Ie Svidzinski
- Departament of Clinical Analyses and Biomedicine, Universidade Estadual de Maringá, Maringá, Paraná, CEP, 87020-900, Brazil
| |
Collapse
|
6
|
Lu Y, Shi J, Zhao X, Song Y, Qin Y, Liu Y. Improvement of the Biosynthesis of Resveratrol in Endophytic Fungus ( Alternaria sp. MG1) by the Synergistic Effect of UV Light and Oligomeric Proanthocyanidins. Front Microbiol 2021; 12:770734. [PMID: 34745078 PMCID: PMC8567136 DOI: 10.3389/fmicb.2021.770734] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
Resveratrol, a natural polyphenol compound with multiple bioactivities, is widely used in food and pharmaceutical industry. Endophytic fungus Alternaria sp. MG1, as a native producer of resveratrol, shows increasing potential application. However, strategies for improvement of the biosynthesis of resveratrol in this species are still scarce. In this study, different elicitors were used to investigate their effect on the biosynthesis of resveratrol in MG1 and the induction mechanism. Ultrasound and sodium butyrate had no effect and slight inhibition on the resveratrol production and related gene expression, respectively. UV radiation and co-culture with Phomopsis sp. XP-8 significantly promoted the biosynthesis of resveratrol with the highest production (240.57μg/l) coming from UV 20min. Co-culture altered the profiles of secondary metabolites in MG1 by promoting and inhibiting the synthesis of stilbene and lignin compounds, respectively, and generating new flavonoids ((+/-)-taxifolin, naringin, and (+)-catechin). Oligomeric proanthocyanidins (OPC) also showed an obviously positive influence, leading to an increase in resveratrol production by 10 to 60%. Two calcium-dependent protein kinases (CDPK) were identified, of which CDPK1 was found to be an important regulatory factor of OPC induction. Synergistic treatment of UV 20min and 100μm OPC increased the production of resveratrol by 70.37% compared to control and finally reached 276.31μg/l.
Collapse
Affiliation(s)
- Yao Lu
- College of Enology, Northwest A&F University, Yangling, China
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, China
| | - Xixi Zhao
- College of Enology, Northwest A&F University, Yangling, China
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, China
| | - Yuyang Song
- College of Enology, Northwest A&F University, Yangling, China
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, China
| | - Yi Qin
- College of Enology, Northwest A&F University, Yangling, China
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, China
| | - Yanlin Liu
- College of Enology, Northwest A&F University, Yangling, China
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, China
| |
Collapse
|
7
|
Machado MG, Sencio V, Trottein F. Short-Chain Fatty Acids as a Potential Treatment for Infections: a Closer Look at the Lungs. Infect Immun 2021; 89:e0018821. [PMID: 34097474 PMCID: PMC8370681 DOI: 10.1128/iai.00188-21] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Short-chain fatty acids (SCFAs) are the main metabolites produced by the gut microbiota via the fermentation of complex carbohydrates and fibers. Evidence suggests that SCFAs play a role in the control of infections through direct action both on microorganisms and on host signaling. This review summarizes the main microbicidal effects of SCFAs and discusses studies highlighting the effect of SCFAs in the virulence and viability of microorganisms. We also describe the diverse and complex modes of action of the SCFAs on the immune system in the face of infections with a specific focus on bacterial and viral respiratory infections. A growing body of evidence suggests that SCFAs protect against lung infections. Finally, we present potential strategies that may be leveraged to exploit the biological properties of SCFAs for increasing effectiveness and optimizing patient benefits.
Collapse
Affiliation(s)
- Marina Gomes Machado
- Centre d’Infection et d’Immunité de Lille, INSERM U1019, CNRS UMR 9017, University of Lille, CHU Lille, Institut Pasteur de Lille, Lille, France
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, ICB, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Valentin Sencio
- Centre d’Infection et d’Immunité de Lille, INSERM U1019, CNRS UMR 9017, University of Lille, CHU Lille, Institut Pasteur de Lille, Lille, France
| | - François Trottein
- Centre d’Infection et d’Immunité de Lille, INSERM U1019, CNRS UMR 9017, University of Lille, CHU Lille, Institut Pasteur de Lille, Lille, France
| |
Collapse
|
8
|
Cordeiro RDA, Aguiar ALR, da Silva BN, Pereira LMG, Portela FVM, de Camargo ZP, de Lima-Neto RG, Castelo-Branco DDSCM, Rocha MFG, Sidrim JJC. Trichosporon asahii and Trichosporon inkin Biofilms Produce Antifungal-Tolerant Persister Cells. Front Cell Infect Microbiol 2021; 11:645812. [PMID: 33968802 PMCID: PMC8100310 DOI: 10.3389/fcimb.2021.645812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/17/2021] [Indexed: 12/27/2022] Open
Abstract
Persister cells are metabolically inactive dormant cells that lie within microbial biofilms. They are phenotypic variants highly tolerant to antimicrobials and, therefore, associated with recalcitrant infections. In the present study, we investigated if Trichosporon asahii and T. inkin are able to produce persister cells. Trichosporon spp. are ubiquitous fungi, commonly found as commensals of the human skin and gut microbiota, and have been increasingly reported as agents of fungemia in immunocompromised patients. Biofilms derived from clinical strains of T asahii (n=5) and T. inkin (n=7) were formed in flat-bottomed microtiter plates and incubated at 35°C for 48 h, treated with 100 μg/ml amphotericin B (AMB) and incubated at 35°C for additional 24 h. Biofilms were scraped from the wells and persister cells were assayed for susceptibility to AMB. Additionally, we investigated if these persister cells were able to generate new biofilms and studied their ultrastructure and AMB susceptibility. Persister cells were detected in both T asahii and T. inkin biofilms and showed tolerance to high doses of AMB (up to 256 times higher than the minimum inhibitory concentration). Persister cells were able to generate biofilms, however they presented reduced biomass and metabolic activity, and reduced tolerance to AMB, in comparison to biofilm growth control. The present study describes the occurrence of persister cells in Trichosporon spp. and suggests their role in the reduced AMB susceptibility of T. asahii and T. inkin biofilms.
Collapse
Affiliation(s)
| | | | | | | | | | - Zoilo Pires de Camargo
- Department of Medicine, Discipline of Infectious Diseases, Federal University of São Paulo, São Paulo, Brazil
| | | | | | - Marcos Fábio Gadelha Rocha
- Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.,College of Veterinary, State University of Ceará, Fortaleza, Brazil
| | | |
Collapse
|
9
|
Ranjan K, Brandão F, Morais JAV, Muehlmann LA, Silva-Pereira I, Bocca AL, Matos LF, Poças-Fonseca MJ. The role of Cryptococcus neoformans histone deacetylase genes in the response to antifungal drugs, epigenetic modulators and to photodynamic therapy mediated by an aluminium phthalocyanine chloride nanoemulsion in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 216:112131. [PMID: 33517071 DOI: 10.1016/j.jphotobiol.2021.112131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/09/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Cryptococcus is a globally distributed fungal pathogen that primarily afflicts immunocompromised individuals. The therapeutic options are limited and include mostly amphotericin B or fluconazole, alone or in combination. The extensive usage of antifungals allowed the selection of resistant pathogens posing threats to global public health. Histone deacetylase genes are involved in Cryptococcus virulence, and in pathogenicity and resistance to azoles in Candida albicans. Aiming to assess whether histone deacetylase genes are involved in antifungal response and in synergistic drug interactions, we evaluated the activity of amphotericin B, fluconazole, sulfamethoxazole, sodium butyrate or trichostatin A (histone deacetylase inhibitors), and hydralazine or 5- aza-2'-deoxycytidine (DNA methyl-transferase inhibitors) against different Cryptococcus neoformans strains, C. neoformans histone deacetylase null mutants and Cryptococcus gattii NIH198. The drugs were employed alone or in different combinations. Fungal growth after photodynamic therapy mediated by an aluminium phthalocyanine chloride nanoemulsion, alone or in combination with the aforementioned drugs, was assessed for the C. neoformans HDAC null mutant strains. Our results showed that fluconazole was synergistic with sodium butyrate or with trichostatin A for the hda1Δ/hos2Δ double mutant strain. Sulfamethoxazole was synergistic with sodium butyrate or with hydralazine also for hda1Δ/hos2Δ. These results clearly indicate a link between HDAC impairment and drug sensitivity. Photodynamic therapy efficacy on controlling the growth of the HDAC mutant strains was increased by amphotericin B, fluconazole, sodium butyrate or hydralazine. This is the first study in Cryptococcus highlighting the combined effects of antifungal drugs, histone deacetylase or DNA methyltransferase inhibitors and photodynamic therapy in vitro.
Collapse
Affiliation(s)
- Kunal Ranjan
- Department of Genetics and Morphology, University of Brasilia, Brasilia, Brazil
| | - Fabiana Brandão
- Faculty of Health Sciences, University of Brasilia, Brasilia, Brazil
| | - José Athayde V Morais
- Postgraduate Program in Nanoscience and Nanobiotechnology, University of Brasilia, Brasilia, Brazil
| | - Luís Alexandre Muehlmann
- Postgraduate Program in Nanoscience and Nanobiotechnology, University of Brasilia, Brasilia, Brazil; Faculty of Ceilandia, University of Brasilia, Brasilia, Brazil
| | | | | | | | | |
Collapse
|
10
|
Lan Y, Lu S, Zheng B, Tang Z, Li J, Zhang J. Combinatory Effect of ALA-PDT and Itraconazole Treatment for Trichosporon asahii. Lasers Surg Med 2020; 53:722-730. [PMID: 33164224 DOI: 10.1002/lsm.23343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/11/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Trichosporiosis is an opportunistic infection that includes superficial infections, white piedra, hypersensitivity pneumonitis, and invasive trichosporonosis. The effect of antifungal agents against these infections is largely weakened by drug resistance and biofilms-related virulence. Photodynamic therapy (PDT) is a new therapeutic approach developed not only to combat cancerous lesions but also to treat infectious diseases such as fungal infections. However, there are few studies on the antimicrobial mechanism of 5-aminolevulinic acid PDT (ALA-PDT) in treating Trichosporon. In this work, we explored the possibility of combining ALA-PDT with an antifungal agent to enhance the therapeutic efficacy of Trichosporon asahii (T. asahii) in a clinical setting and in vitro. STUDY DESIGN/MATERIALS AND METHODS The biofilms of T. asahii were constructed by a 96-well plate-based method in vitro. The planktonic and adherent T. asahii were exposed to different concentrations of photosensitizers and different light doses. After PDT treatment, counting colony-forming units and tetrazolium (XTT) reduction assay were used to estimate the antifungal efficacy. The minimal inhibitory concentration of itraconazole before and after PDT treatment was determined by the broth dilution method, and XTT viability assay was used to detect and evaluate the synergistic potential of ALA-PDT and itraconazole combinations in inhibiting biofilms. Scanning electron microscopy (SEM) was performed to assess the disruption of biofilms. RESULTS Using combination therapy, we have successfully treated a patient who had a T. asahii skin infection. Further in vitro studies showed that the antifungal effect of ALA-PDT on planktonic and adherent T. asahii was dependent on the concentration of ALA and light dosages used. We also found that the sensitivity of both planktonic and biofilm cells to itraconazole were increased after ALA-PDT. Synergistic effect were observed for biofilms in ALA-PDT and itraconazole-combined treatment. The disruption of biofilms was confirmed by SEM, suggesting that ALA-PDT effectively damaged the biofilms and the destruction was further enhanced by ALA-PDT combination of antifungal agents. CONCLUSIONS In conclusion, these data suggest that ALA-PDT could be an alternative strategy for controlling infections caused by Trichosporon. The combination therapy of ALA-PDT with itraconazole could result in increased elimination of planktonic cells and biofilms compared with single therapy. All these findings indicate that it could be a promising treatment against trichosporonosis. Lasers Surg. Med. © 2020 Wiley Periodicals LLC.
Collapse
Affiliation(s)
- Yu Lan
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China.,Department of Dermatology, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025 Shennan Road Central, Shenzhen, 518033, China
| | - Sha Lu
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Bowen Zheng
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China.,Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Zengqi Tang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Jiahao Li
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Junmin Zhang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China
| |
Collapse
|
11
|
Li T, Huang Y, Chen X, Wang Z, Xu Y. Urinary Tract Infections Caused by Fluconazole-Resistant Trichosporon japonicum in 2 Kidney Transplant Patients and Analysis of Their Homology. Open Forum Infect Dis 2020; 7:ofaa365. [PMID: 33024792 PMCID: PMC7526867 DOI: 10.1093/ofid/ofaa365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/13/2020] [Indexed: 11/27/2022] Open
Abstract
Trichosporon spp. are emerging opportunistic agents that cause systemic diseases and life-threatening disseminated disease in immunocompromised hosts. Trichosporon japonicum is a highly rare cause of invasive trichosporonosis. In this study, we describe 2 cases of urinary tract infection caused by Trichosporon japonicum in kidney transplant patients. Culturing of urine samples yielded bluish-green colonies of T. japonicum on Candida chromogenic fungal medium. The isolates were identified as T. japonicum by matrix-assisted laser desorption ionization–time-of-flight mass spectrometry (MALDI TOF-MS; Autof MS 1000). The identification of T. japonicum was further confirmed by 18S rRNA gene sequencing. In vitro drug susceptibility testing showed that the 2 strains of T. japonicum were resistant to 5-flucytosine, fluconazole, and caspofungin, with dose-dependent sensitivity to itraconazole and voriconazole but sensitivity to amphotericin B. The homology of the 2 T. japonicum strains, as determined by cluster analysis and principal component analysis of MALDI-TOF MS, was ~85%, suggesting a common nosocomial origin. The first 2 case reports of fluconazole-resistant T. japonicum urinary infection in kidney transplant recipients are presented.
Collapse
Affiliation(s)
- Tingting Li
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ying Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xianguo Chen
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhongxin Wang
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yuanhong Xu
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| |
Collapse
|
12
|
Shin DS, Rhee KJ, Eom YB. Effect of Probiotic Clostridium butyricum NCTC 7423 Supernatant on Biofilm Formation and Gene Expression of Bacteroides fragilis. J Microbiol Biotechnol 2020; 30:368-377. [PMID: 32066216 PMCID: PMC9728305 DOI: 10.4014/jmb.2001.01027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Enterotoxigenic Bacteroides fragilis (ETBF) is the main pathogen causing severe inflammatory diseases and colorectal cancer. Its biofilm plays a key role in the development of colorectal cancer. The objective of this study was to determine the antagonistic effects of cell-free supernatants (CFS) derived from Clostridium butyricum against the growth and biofilm of ETBF. Our data showed that C. butyricum CFS inhibited the growth of B. fragilis in planktonic culture. In addition, C. butyricum CFS exhibited an antibiofilm effect by inhibiting biofilm development, disassembling preformed biofilms and reducing the metabolic activity of cells in biofilms. Using confocal laser scanning microscopy, we found that C. butyricum CFS significantly suppressed the proteins and extracellular nucleic acids among the basic biofilm components. Furthermore, C. butyricum CFS significantly downregulated the expression of virulence- and efflux pump-related genes including ompA and bmeB3 in B. fragilis. Our findings suggest that C. butyricum can be used as biotherapeutic agent by inhibiting the growth and biofilm of ETBF.
Collapse
Affiliation(s)
- Da-Seul Shin
- Department of Medical Sciences, College of Medical Sciences, Soonchunhyang University, Asan 3538, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju 6493, Republic of Korea
| | - Yong-Bin Eom
- Department of Medical Sciences, College of Medical Sciences, Soonchunhyang University, Asan 3538, Republic of Korea,Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan 158, Republic of Korea,Corresponding author Phone: +82-41-530-3039 Fax: +82-41-530-3085 E-mail:
| |
Collapse
|
13
|
Antimicrobial and antibiofilm activities of Clostridium butyricum supernatant against Acinetobacter baumannii. Arch Microbiol 2020; 202:1059-1068. [PMID: 32020245 DOI: 10.1007/s00203-020-01823-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 01/15/2020] [Accepted: 01/28/2020] [Indexed: 01/03/2023]
Abstract
Acinetobacter baumannii is the major nosocomial pathogen that causes serious infections such as ventilator-associated pneumonia and bacteremia due to its biofilms. Hence, this study investigated the antimicrobial and antibiofilm potentials of cell-free supernatants (CFS) obtained from Clostridium butyricum, as probiotic, against A. baumannii. Our results demonstrated that C. butyricum CFS inhibited A. baumannii cell growth in planktonic culture. Also, C. butyricum CFS not only inhibited the biofilm development and dispersed mature biofilms, but also suppressed the metabolic activity of biofilm cells, showing antibiofilm activity. The biofilm components reduced by C. butyricum CFS were observed via confocal laser scanning microscopy. In addition, C. butyricum CFS exhibited antivirulence effect by inhibiting the motility of A. baumannii. Furthermore, C. butyricum CFS significantly downregulated the expression of efflux pump-related genes including adeA, adeB and adeC in A. baumannii. Our data demonstrate that C. butyricum CFS showed antimicrobial and antibiofilm effects on A. baumannii. These effects are closely associated with suppression of motility and efflux pump-related genes in A. baumannii. The findings suggest that C. butyricum CFS can be used as a new therapeutic alternative against biofilm-associated infection caused by multidrug-resistant A. baumannii.
Collapse
|