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Wang B, Zhang C, Shi C, Zhai T, Zhu J, Wei D, Shen J, Liu Z, Jia K, Zhao L. Mechanisms of oral microflora in Parkinson's disease. Behav Brain Res 2024; 474:115200. [PMID: 39134178 DOI: 10.1016/j.bbr.2024.115200] [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: 03/28/2024] [Revised: 08/09/2024] [Accepted: 08/09/2024] [Indexed: 08/16/2024]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease with complex pathogenesis and no effective treatment. Recent studies have shown that dysbiosis of the oral microflora is closely related to the development of PD. The abnormally distributed oral microflora of PD patients cause degenerative damage and necrosis of dopamine neurons by releasing their own components and metabolites, intervening in the oral-gut-brain axis, crossing the biofilm, inducing iron dysregulation, activating inter-microflora interactions, and through the mediation of saliva,ultimately influencing the development of the disease. This article reviews the structure of oral microflora in patients with PD, the mechanism of development of PD caused by oral microflora, and the potential value of targeting oral microflora in developing a new strategy for PD prevention, diagnosis and treatment.
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Affiliation(s)
- Bingbing Wang
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Can Zhang
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Caizhen Shi
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Tianyu Zhai
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Jinghui Zhu
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Dongmin Wei
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Juan Shen
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Zehao Liu
- Medical School of Yan'an University, Yan'an, Shaanxi, China
| | - Kunpeng Jia
- Yan'an University Affiliated Hospital, Yan'an, Shaanxi, China.
| | - Lin Zhao
- Medical School of Yan'an University, Yan'an, Shaanxi, China.
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Portela FVM, Andrade ARCD, Pereira LMG, da Silva BN, Peixoto PHS, Amando BR, Fiallos NDM, Souza PDFSMD, Lima-Neto RGD, Guedes GMDM, Castelo-Branco DSCM, Cordeiro RDA. Antibiotics stimulates the development of persistent cells in biofilms of Candida albicans bloodstream isolates. BIOFOULING 2024; 40:593-601. [PMID: 39219014 DOI: 10.1080/08927014.2024.2396013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 08/10/2024] [Accepted: 08/18/2024] [Indexed: 09/04/2024]
Abstract
Candida albicans invasive candidiasis is considered a global health problem. In such cases, biofilm formation on implanted devices represents a therapeutic challenge and the presence of metabolically inactive persistent cells (PCs) in these communities increases their tolerance to fungicidal drugs. This study investigated the influence of amoxicillin, AMX; cefepime, CEF; gentamicin, GEN; amikacin, AMK; vancomycin, VAN; and ciprofloxacin, CIP; on the production of PCs in biofilms of C. albicans bloodstream isolates. 48 h-mature biofilms (n = 6) grown in RPMI-1640 supplemented with antibiotics were treated with 100 μg ml-1 amphotericin B and then evaluated for PCs. Biofilms grown in the presence of antibiotics produced more PCs, up to 10×, when exposed to AMX and CIP; 5 × to CEF; and 6 × to GEN and VAN. The results indicate that antibiotics can modulate PC production in C. albicans biofilms. This scenario may have clinical repercussions in immunocompromised patients under broad-spectrum antibiotic therapy.
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Affiliation(s)
| | | | | | | | | | | | - Nicole de Mello Fiallos
- Faculty of Medicine, Universidade Federal do Ceará, Fortaleza, Brazil
- College of Dentistry, University of Florida, Gainesville, Florida, USA
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Ergin M, Budin M, Canbaz SB, Ciloglu O, Gehrke T, Citak M. Microbiological profiles in periprosthetic joint infections after total knee arthroplasty: a comparative analysis of diabetic and non-diabetic patients. INTERNATIONAL ORTHOPAEDICS 2024; 48:2633-2640. [PMID: 39180538 DOI: 10.1007/s00264-024-06275-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 08/10/2024] [Indexed: 08/26/2024]
Abstract
AIM OF THE STUDY The purpose of this study is to conduct a comparative analysis of the microbiological profiles in periprosthetic joint infections (PJIs) after total knee arthroplasty (TKA) between diabetic and non-diabetic patients. The study aims to address what are the variations in microbial colonization and infection patterns between diabetic and non-diabetic patients undergoing total knee arthroplasty. METHODS A retrospective analysis of 2,569 culture-positive cases of PJIs post-TKA was conducted, comparing outcomes between diabetic (n = 321) and non-diabetic (n = 2,248) patients. Demographic, clinical, and microbiological data were collected and analyzed using descriptive statistics, chi-squared tests, logistic regression, and other statistical tests. RESULTS Diabetic patients exhibited distinct microbial colonization patterns, with a higher prevalence of pathogens such as Staphylococcus aureus (p = 0.033), Pseudomonas aeruginosa (p < 0.001), Streptococcus spp. (Streptococcus agalactiae and Streptococcus dysgalactiae; p = 0.010, 0.016 respectively), Candida spp. (p = 0.010), and Corynebacterium spp. (p = 0.024). Additionally, diabetic patients were at increased risk of polymicrobial infections. Comorbidities associated with diabetes, including chronic pulmonary disease, renal insufficiency, and peripheral artery disease, were significantly more prevalent in diabetic patients and further complicated PJI outcomes. CONCLUSION This study underscores the importance of tailored perioperative antimicrobial strategies and vigilant infection control measures in diabetic patients undergoing TKA. Understanding the differential microbial profiles and associated comorbidities can inform targeted interventions to mitigate the risk of PJIs and improve outcomes in this high-risk population. Further research is warranted to elucidate the underlying mechanisms and optimize management strategies for diabetic patients undergoing TKA.
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Affiliation(s)
- Musa Ergin
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany
- Department of Orthopedics and Traumatology, Cihanbeyli State Hospital, Konya, Turkey
| | - Maximilian Budin
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany
| | - Sebati Başer Canbaz
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany
| | - Osman Ciloglu
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany
| | - Thorsten Gehrke
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany
| | - Mustafa Citak
- Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany.
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Yang L, Li W, Zhong J, Liu X. Inhibitory effects and mode of antifungal action of isobavachalcone on Candida albicans growth and virulence factors. Biomed Pharmacother 2024; 179:117352. [PMID: 39208670 DOI: 10.1016/j.biopha.2024.117352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 08/13/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024] Open
Abstract
The fungus Candida albicans causes various kinds of human infections, including oral thrush, vulvovaginitis and life-endangering bloodstream infections, the incidence of which are rising. Worsening this, the clinical antifungals are limited to a few, highlighting the necessity to develop novel antifungal therapies. In this study, the antifungal activities of isobavachalcone against C. albicans SC5314 and nine C. albicans clinical isolates were tested. The effects of isobavachalcone (IBC) on C. albicans virulence factors, such as hyphal formation, adhesion, biofilm formation and extracellular phospholipase production, as well as the underlying mechanism, were also evaluated. Antifungal susceptibility test revealed that IBC has significant anti-Candida activities, with both MIC and MFC being 4-5 μg/mL against all strains tested. Hyphal formation in RPMI-1640, Spider and GlcNAc medium, adhesion to abiotic polystyrene surfaces and surfaces of A549 cells, could be inhibited by IBC. Most important, IBC could inhibit the C. albicans biofilm formation and development. PI staining tests showed that IBC could increase the cell membrane permeability, suggesting the damages to the fungal cell membrane. IBC was further demonstrated to induce excessive ROS production in C. albicans planktonic cells and its mature biofilms, as revealed by DCFH fluorescence detection through flowcytometry and relative fluorescence intensity analysis (with a microplate reader). The roles of ROS in the antifungal activity of IBC were further confirmed through antioxidant rescue assays in MIC and biofilm formation tests. Compared to its antifungal activity, the cytotoxicity against mammalian cells was low, indicating its potential in developing antifungal therapies.
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Affiliation(s)
- Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China
| | - Wenmao Li
- Department of Rehabilitation Medicine, The Second Hospital of Jilin University, Changchun 130041, China
| | - Jianfeng Zhong
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun 130041, China
| | - Xin Liu
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China.
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Yong LX, Sefton J, Vallières C, Rance GA, Hill J, Cuzzucoli Crucitti V, Dundas AA, Rose FRAJ, Alexander MR, Wildman R, He Y, Avery SV, Irvine DJ. Fungal Attachment-Resistant Polymers for the Additive Manufacture of Medical Devices. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39349401 DOI: 10.1021/acsami.4c04833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/02/2024]
Abstract
This study reports the development of the first copolymer material that (i) is resistant to fungal attachment and hence biofilm formation, (ii) operates via a nonkilling mechanism, i.e., avoids the use of antifungal actives and the emergence of fungal resistance, (iii) exhibits sufficient elasticity for use in flexible medical devices, and (iv) is suitable for 3D printing (3DP), enabling the production of safer, personalized medical devices. Candida albicans (C. albicans) can form biofilms on in-dwelling medical devices, leading to potentially fatal fungal infections in the human host. Poly(dimethylsiloxane) (PDMS) is a common material used for the manufacture of medical devices, such as voice prostheses, but it is prone to microbial attachment. Therefore, to deliver a fungal-resistant polymer with key physical properties similar to PDMS (e.g., flexibility), eight homopolymers and 30 subsequent copolymers with varying glass transition temperatures (Tg) and fungal antiattachment properties were synthesized and their materials/processing properties studied. Of the copolymers produced, triethylene glycol methyl ether methacrylate (TEGMA) copolymerized with (r)-α-acryloyloxy-β,β-dimethyl-γ-butyrolactone (AODMBA) at a 40:60 copolymer ratio was found to be the most promising candidate by meeting all of the above criteria. This included demonstrating the capability to successfully undergo 3DP by material jetting, via the printing of a voice prosthesis valve-flap using the selected copolymer.
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Affiliation(s)
- Ling Xin Yong
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Joseph Sefton
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Cindy Vallières
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Graham A Rance
- Nanoscale and Microscale Research Centre, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Jordan Hill
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Adam A Dundas
- Advanced Materials Research Group, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Felicity R A J Rose
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Morgan R Alexander
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Ricky Wildman
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Yinfeng He
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Simon V Avery
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Derek J Irvine
- Centre for Additive Manufacturing, Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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Hussen I, Aliyo A, Abbai MK, Dedecha W. Vaginal candidiasis prevalence, associated factors, and antifungal susceptibility patterns among pregnant women attending antenatal care at bule hora university teaching hospital, Southern Ethiopia. BMC Pregnancy Childbirth 2024; 24:619. [PMID: 39350045 PMCID: PMC11441096 DOI: 10.1186/s12884-024-06844-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 09/19/2024] [Indexed: 10/04/2024] Open
Abstract
BACKGROUND Vulvovaginitis is common in women of reproductive age group characterized by purulent white discharge. The incidence of vulvovaginitis has risen recently due to the resistance of Candida species to commonly used antifungal agents and recurrent infections. OBJECTIVE The study aimed to determine the prevalence, associated factors, and antifungal susceptibility patterns of vaginal candidiasis among pregnant women attending Bule Hora University Teaching Hospital. METHODS A hospital-based cross-sectional study was conducted from May 2023 to August 2023. Using systematic random sampling, 317 pregnant women participated in the study. Sabouraud Dextrose Agar and Chromogenic Candida Differential Agar were used to isolate and identify Candida species from clinical samples. Antifungal susceptibility was performed using a modified disc diffusion method. Epi data version 4.6 was used for data entry and Statistical Packages for Social Sciences version 25 was used for statistical analysis. A P-value < 0.05 was declared statistically significant. RESULT The prevalence of vaginal candidiasis was 26.8% (95%, CI 21.9-31.72%). History of using contraceptives (AOR = 5.03, 95%CI, 1.21-11.37), past vaginal candidiasis (AOR = 6, 95%CI, 1.61-12.92), pregnant women infected with human immunodeficiency virus (HIV) (AOR = 4.24, 95%CI, 1.23-14.14), diabetic mellitus (AOR = 2.17, 95%CI, 1.02-4.64), history of antibiotic use (AOR = 3.55, 95%CI, 1.67-12.75), pregnant women in third trimester (AOR = 8.72, 95%CI, 1.30-23.07), were the significantly associated factors for vaginal candidiasis. The study revealed that itraconazole, amphotericin B, and miconazole were the most effective antifungal drugs for all Candida isolates. CONCLUSION The present study has identified a high prevalence of vaginal candidiasis among pregnant women. The isolated Candida species showed resistance to fluconazole, ketoconazole, and clotrimazole. Therefore, healthcare providers should increase awareness of the risks of Candida infections to reduce Candida species among pregnant women. Physicians should prescribe suitable medications based on antifungal drug test outcomes to treat pregnant women with vaginal candidiasis.
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Affiliation(s)
- Ibrahim Hussen
- Medical Laboratory Science Department, Institute of Health, Bule Hora University, P.O. Box 144, Bule Hora City, Ethiopia
| | - Alqeer Aliyo
- Medical Laboratory Science Department, Institute of Health, Bule Hora University, P.O. Box 144, Bule Hora City, Ethiopia.
| | - Moorthy Kannaiyan Abbai
- Medical Laboratory Science Department, Institute of Health, Bule Hora University, P.O. Box 144, Bule Hora City, Ethiopia
| | - Wako Dedecha
- Medical Laboratory Science Department, Institute of Health, Bule Hora University, P.O. Box 144, Bule Hora City, Ethiopia
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Lindemann-Perez E, Rodríguez DL, Pérez JC. An approach to analyze spatiotemporal patterns of gene expression at single-cell resolution in Candida albicans-infected mouse tongues. mSphere 2024; 9:e0028224. [PMID: 39171917 PMCID: PMC11423565 DOI: 10.1128/msphere.00282-24] [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: 04/05/2024] [Accepted: 07/11/2024] [Indexed: 08/23/2024] Open
Abstract
Microbial gene expression measurements derived from infected organs are invaluable to understand pathogenesis. However, current methods are limited to "bulk" analyses that neglect microbial cell heterogeneity and the lesion's spatial architecture. Here, we report the use of hybridization chain reaction RNA fluorescence in situ hybridization (HCR RNA-FISH) to visualize and quantify Candida albicans transcripts at single-cell resolution in tongues of infected mice. The method is compatible with fixed-frozen and formalin-fixed paraffin-embedded tissues. We document cell-to-cell variation and intriguing spatiotemporal expression patterns for C. albicans mRNAs that encode products implicated in oral candidiasis. The approach provides a spatial dimension to gene expression analyses of host-Candida interactions. IMPORTANCE Candida albicans is a fungal pathobiont inhabiting multiple mucosal surfaces of the human body. Immunosuppression, antibiotic-induced microbial dysbiosis, or implanted medical devices can impair mucosal integrity enabling C. albicans to overgrow and disseminate, causing either mucosal diseases such as oropharyngeal candidiasis or life-threatening systemic infections. Profiling fungal genes that are expressed in the infected mucosa or in any other infected organ is paramount to understand pathogenesis. Ideally, these transcript profiling measurements should reveal the expression of any gene at the single-cell level. The resolution typically achieved with current approaches, however, limits most gene expression measurements to cell population averages. The approach described in this report provides a means to dissect fungal gene expression in infected tissues at single-cell resolution.
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Affiliation(s)
- Elena Lindemann-Perez
- Department of Microbiology and Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Diana L. Rodríguez
- Department of Microbiology and Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - J. Christian Pérez
- Department of Microbiology and Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
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Liu F, Chen Y, Huang Y, Jin Q, Ji J. Nanomaterial-based therapeutics for enhanced antifungal therapy. J Mater Chem B 2024; 12:9173-9198. [PMID: 39192670 DOI: 10.1039/d4tb01484g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
The application of nanotechnology in antifungal therapy is gaining increasing attention. Current antifungal drugs have significant limitations, such as severe side effects, low bioavailability, and the rapid development of resistance. Nanotechnology offers an innovative solution to address these issues. This review discusses three key strategies of nanotechnology to enhance antifungal efficacy. Firstly, nanomaterials can enhance their interaction with fungal cells via ingenious surface tailoring of nanomaterials. Effective adhesion of nanoparticles to fungal cells can be achieved by electrostatic interaction or specific targeting to the fungal cell wall and cell membrane. Secondly, stimuli-responsive nanomaterials are developed to realize smart release of drugs in the specific microenvironment of pathological tissues, such as the fungal biofilm microenvironment and inflammatory microenvironment. Thirdly, nanomaterials can be designed to cross different physiological barriers, effectively addressing challenges posed by skin, corneal, and blood-brain barriers. Additionally, some new nanomaterial-based strategies in treating fungal infections are discussed, including the development of fungal vaccines, modulation of macrophage activity, phage therapy, the application of high-throughput screening in drug discovery, and so on. Despite the challenges faced in applying nanotechnology to antifungal therapy, its significant potential and innovation open new possibilities for future clinical antifungal applications.
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Affiliation(s)
- Fang Liu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Yongcheng Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Yue Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
- State Key Laboratory of Transvascular Implantation Devices, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, China
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Kumbhar V, Gaiki S, Shelar A, Nikam V, Patil R, Kumbhar A, Gugale G, Pawar R, Khairnar B. Mining for antifungal agents to inhibit biofilm formation of Candida albicans: A study on green synthesis, antibiofilm, cytotoxicity, and in silico ADME analysis of 2-amino-4H-pyran-3-carbonitrile derivatives. Microb Pathog 2024; 196:106926. [PMID: 39270755 DOI: 10.1016/j.micpath.2024.106926] [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: 01/31/2024] [Revised: 08/17/2024] [Accepted: 09/08/2024] [Indexed: 09/15/2024]
Abstract
Candida albicans (C. albicans) biofilm infections are quite difficult to manage due to their resistance against conventional antifungal drugs. To address this issue, there is a desperate need for new therapeutic drugs. In the present study, a green and efficient protocol has been developed for the synthesis of 2-amino-4H-pyran-3-carbonitrile scaffolds 4a-i, 6a-j, and 8a-g by Knoevenagel-Michael-cyclocondensation reaction between aldehydes, malononitrile, and diverse enolizable C-H activated acidic compounds using guanidinium carbonate as a catalyst either under grinding conditions or by stirring at room temperature. This protocol is operationally simple, rapid, inexpensive, has easy workup and column-free purification. A further investigation of the synthesized compounds was conducted to examine their antifungal potential and their ability to inhibit the growth and development of biofilm-forming yeasts like fungus C. albicans. According to our findings, 4b, 4d, 4e, 6e, 6f, 6g, 6i, 8c, 8d, and 8g were found to be active and potential inhibitors for biofilm infection causing C. albicans. The inhibition of biofilm by active compounds were observed using field emission scanning electron microscopy (FESEM). Biofilm inhibiting compounds were also tested for in vitro toxicity by using 3T3-L1 cell line, and 4b, 6e, 6f, 6g, 6i, 8c, and 8d were found to be biocompatible. Furthermore, the in silico ADME descriptors revealed drug-like properties with no violation of Lipinski's rule of five. Hence, the result suggested that synthesized derivatives could serve as a useful aid in the development of novel antifungal compounds for the treatment of fungal infections and virulence in C. albicans.
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Affiliation(s)
- Vikrant Kumbhar
- Department of Chemistry, PDEA's Prof. Ramkrishna More College, Pune, 411044, India; Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune 411007, India.
| | - Sagar Gaiki
- Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune 411007, India.
| | - Amruta Shelar
- Department of Technology, Savitribai Phule Pune University, Pune, 411007, India.
| | - Vandana Nikam
- Department of Pharmacology, STES's Smt. Kashibai Navale College of Pharmacy, Pune, 411048, India.
| | - Rajendra Patil
- Department of Biotechnology, Savitribai Phule Pune University, Pune, 411007, India.
| | - Avinash Kumbhar
- Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune 411007, India.
| | - Gulab Gugale
- Department of Chemistry, PDEA's Prof. Ramkrishna More College, Pune, 411044, India.
| | - Ramdas Pawar
- Department of Chemistry, PDEA's Prof. Ramkrishna More College, Pune, 411044, India.
| | - Bhushan Khairnar
- Department of Chemistry, PDEA's Prof. Ramkrishna More College, Pune, 411044, India; Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune 411007, India.
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Greig JC, Tipping WJ, Graham D, Faulds K, Gould GW. New insights into lipid and fatty acid metabolism from Raman spectroscopy. Analyst 2024. [PMID: 39258960 DOI: 10.1039/d4an00846d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
One of the challenges facing biology is to understand metabolic events at a single cellular level. While approaches to examine dynamics of protein distribution or report on spatiotemporal location of signalling molecules are well-established, tools for the dissection of metabolism in single living cells are less common. Advances in Raman spectroscopy, such as stimulated Raman scattering (SRS), are beginning to offer new insights into metabolic events in a range of experimental systems, including model organisms and clinical samples, and across a range of disciplines. Despite the power of Raman imaging, it remains a relatively under-used technique to approach biological problems, in part because of the specialised nature of the analysis. To raise the profile of this method, here we consider some key studies which illustrate how Raman spectroscopy has revealed new insights into fatty acid and lipid metabolism across a range of cellular systems. The powerful and non-invasive nature of this approach offers a new suite of tools for biomolecular scientists to address how metabolic events within cells informs on or underpins biological function. We illustrate potential biological applications, discuss some recent advances, and offer a direction of travel for metabolic research in this area.
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Affiliation(s)
- Justin C Greig
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, UK.
| | | | - Duncan Graham
- Pure and Applied Chemistry, University of Strathclyde, UK
| | - Karen Faulds
- Pure and Applied Chemistry, University of Strathclyde, UK
| | - Gwyn W Gould
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, UK.
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Vandermeulen MD, Lorenz MC, Cullen PJ. Conserved signaling modules regulate filamentous growth in fungi: a model for eukaryotic cell differentiation. Genetics 2024:iyae122. [PMID: 39239926 DOI: 10.1093/genetics/iyae122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 07/20/2024] [Indexed: 09/07/2024] Open
Abstract
Eukaryotic organisms are composed of different cell types with defined shapes and functions. Specific cell types are produced by the process of cell differentiation, which is regulated by signal transduction pathways. Signaling pathways regulate cell differentiation by sensing cues and controlling the expression of target genes whose products generate cell types with specific attributes. In studying how cells differentiate, fungi have proved valuable models because of their ease of genetic manipulation and striking cell morphologies. Many fungal species undergo filamentous growth-a specialized growth pattern where cells produce elongated tube-like projections. Filamentous growth promotes expansion into new environments, including invasion into plant and animal hosts by fungal pathogens. The same signaling pathways that regulate filamentous growth in fungi also control cell differentiation throughout eukaryotes and include highly conserved mitogen-activated protein kinase (MAPK) pathways, which is the focus of this review. In many fungal species, mucin-type sensors regulate MAPK pathways to control filamentous growth in response to diverse stimuli. Once activated, MAPK pathways reorganize cell polarity, induce changes in cell adhesion, and promote the secretion of degradative enzymes that mediate access to new environments. However, MAPK pathway regulation is complicated because related pathways can share components with each other yet induce unique responses (i.e. signal specificity). In addition, MAPK pathways function in highly integrated networks with other regulatory pathways (i.e. signal integration). Here, we discuss signal specificity and integration in several yeast models (mainly Saccharomyces cerevisiae and Candida albicans) by focusing on the filamentation MAPK pathway. Because of the strong evolutionary ties between species, a deeper understanding of the regulation of filamentous growth in established models and increasingly diverse fungal species can reveal fundamentally new mechanisms underlying eukaryotic cell differentiation.
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Affiliation(s)
| | - Michael C Lorenz
- Department of Microbiology and Molecular Genetics, University of Texas McGovern Medical School, Houston, TX 77030, USA
| | - Paul J Cullen
- Department of Biological Sciences, University at Buffalo, Buffalo, NY 14260-1300, USA
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Holzknecht J, Marx F. Navigating the fungal battlefield: cysteine-rich antifungal proteins and peptides from Eurotiales. FRONTIERS IN FUNGAL BIOLOGY 2024; 5:1451455. [PMID: 39323611 PMCID: PMC11423270 DOI: 10.3389/ffunb.2024.1451455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 08/12/2024] [Indexed: 09/27/2024]
Abstract
Fungi are ubiquitous in the environment and play a key role in the decomposition and recycling of nutrients. On the one hand, their special properties are a great asset for the agricultural and industrial sector, as they are used as source of nutrients, producers of enzymes, pigments, flavorings, and biocontrol agents, and in food processing, bio-remediation and plant growth promotion. On the other hand, they pose a serious challenge to our lives and the environment, as they are responsible for fungal infections in plants, animals and humans. Although host immunity opposes invading pathogens, certain factors favor the manifestation of fungal diseases. The prevalence of fungal infections is on the rise, and there is an alarming increase in the resistance of fungal pathogens to approved drugs. The limited number of antimycotics, the obstacles encountered in the development of new drugs due to the poor tolerability of antifungal agents in patients, the limited number of unique antifungal targets, and the low species specificity contribute to the gradual depletion of the antifungal pipeline and newly discovered antifungal drugs are rare. Promising candidates as next-generation therapeutics are antimicrobial proteins and peptides (AMPs) produced by numerous prokaryotic and eukaryotic organisms belonging to all kingdom classes. Importantly, filamentous fungi from the order Eurotiales have been shown to be a rich source of AMPs with specific antifungal activity. A growing number of published studies reflects the efforts made in the search for new antifungal proteins and peptides (AFPs), their efficacy, species specificity and applicability. In this review, we discuss important aspects related to fungi, their impact on our life and issues involved in treating fungal infections in plants, animals and humans. We specifically highlight the potential of AFPs from Eurotiales as promising alternative antifungal therapeutics. This article provides insight into the structural features, mode of action, and progress made toward their potential application in a clinical and agricultural setting. It also identifies the challenges that must be overcome in order to develop AFPs into therapeutics.
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Affiliation(s)
- Jeanett Holzknecht
- Biocenter, Institute of Molecular Biology, Innsbruck Medical University, Innsbruck, Austria
| | - Florentine Marx
- Biocenter, Institute of Molecular Biology, Innsbruck Medical University, Innsbruck, Austria
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13
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Zhen C, Wang L, Feng Y, Whiteway M, Hang S, Yu J, Lu H, Jiang Y. Otilonium Bromide Exhibits Potent Antifungal Effects by Blocking Ergosterol Plasma Membrane Localization and Triggering Cytotoxic Autophagy in Candida Albicans. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2406473. [PMID: 38995235 PMCID: PMC11425263 DOI: 10.1002/advs.202406473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Indexed: 07/13/2024]
Abstract
Candidiasis, which presents a substantial risk to human well-being, is frequently treated with azoles. However, drug-drug interactions caused by azoles inhibiting the human CYP3A4 enzyme, together with increasing resistance of Candida species to azoles, represent serious issues with this class of drug, making it imperative to develop innovative antifungal drugs to tackle this growing clinical challenge. A drug repurposing approach is used to examine a library of Food and Drug Administration (FDA)-approved drugs, ultimately identifying otilonium bromide (OTB) as an exceptionally encouraging antifungal agent. Mechanistically, OTB impairs vesicle-mediated trafficking by targeting Sec31, thereby impeding the plasma membrane (PM) localization of the ergosterol transporters, such as Sip3. Consequently, OTB obstructs the movement of ergosterol across membranes and triggers cytotoxic autophagy. It is noteworthy that C. albicans encounters challenges in developing resistance to OTB because it is not a substrate for drug transporters. This study opens a new door for antifungal therapy, wherein OTB disrupts ergosterol subcellular distribution and induces cytotoxic autophagy. Additionally, it circumvents the hepatotoxicity associated with azole-mediated liver enzyme inhibition and avoids export-mediated drug resistance in C. albicans.
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Affiliation(s)
- Cheng Zhen
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Li Wang
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Yanru Feng
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Malcolm Whiteway
- Department of BiologyConcordia UniversityMontrealQCH4B 1R6Canada
| | - Sijin Hang
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Jinhua Yu
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Hui Lu
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
| | - Yuanying Jiang
- Department of Pharmacy, Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityNo.1239 Siping RoadShanghai200092China
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14
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Gómez-Gaviria M, Mora-Montes HM. Exploring the potential of chitin and chitosan in nanobiocomposites for fungal immunological detection and antifungal action. Carbohydr Res 2024; 543:109220. [PMID: 39038396 DOI: 10.1016/j.carres.2024.109220] [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: 06/11/2024] [Revised: 07/11/2024] [Accepted: 07/18/2024] [Indexed: 07/24/2024]
Abstract
Chitin is a polymer of N-acetylglucosamine and an essential component of the fungal cell wall. Chitosan is the deacetylated form of chitin and is also important for maintaining the integrity of this structure. Both polysaccharides are widely distributed in nature and have been shown to have a variety of applications in biomedicine, including their potential in immune sensing and as potential antifungal agents. In addition, chitin has been reported to play an important role in the pathogen-host interaction, involving innate and adaptive immune responses. This paper will explore the role of chitin and chitosan when incorporated into nanobiocomposites to improve their efficacy in detecting fungi of medical interest and inhibiting their growth. Potential applications in diagnostic and therapeutic medicine will be discussed, highlighting their promise in the development of more sensitive and effective tools for the early diagnosis of fungal infections. This review aims to highlight the importance of the convergence of nanotechnology and biology in addressing public health challenges.
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Affiliation(s)
- Manuela Gómez-Gaviria
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Gto, Mexico
| | - Héctor M Mora-Montes
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Gto, Mexico.
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15
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Zhou Y, Du W, Chen Y, Li L, Xiao X, Xu Y, Yang W, Hu X, Wang B, Zhang J, Jiang Q, Wang Y. Pathogen detection via inductively coupled plasma mass spectrometry analysis with nanoparticles. Talanta 2024; 277:126325. [PMID: 38833906 DOI: 10.1016/j.talanta.2024.126325] [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: 10/19/2023] [Revised: 04/24/2024] [Accepted: 05/24/2024] [Indexed: 06/06/2024]
Abstract
Infections caused by viruses and bacteria pose a significant threat to global public health, emphasizing the critical importance of timely and precise detection methods. Inductively coupled plasma mass spectrometry (ICP-MS), a contemporary approach for pathogen detection, offers distinct advantages such as high sensitivity, a wide linear range, and multi-index capabilities. This review elucidates the underexplored application of ICP-MS in conjunction with functional nanoparticles (NPs) for the identification of viruses and bacteria. The review commences with an elucidation of the underlying principles, procedures, target pathogens, and NP requirements for this innovative approach. Subsequently, a thorough analysis of the advantages and limitations associated with these techniques is provided. Furthermore, the review delves into a comprehensive examination of the challenges encountered when utilizing NPs and ICP-MS for pathogen detection, culminating in a forward-looking assessment of the potential pathways for advancement in this domain. Thus, this review contributes novel perspectives to the field of pathogen detection in biomedicine by showcasing the promising synergy of ICP-MS and NPs.
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Affiliation(s)
- Yujie Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Wenli Du
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Yuzuo Chen
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lei Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Xuanyu Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Yuanyuan Xu
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Wenjuan Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xuefeng Hu
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Baoning Wang
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Jieyu Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China.
| | - Qing Jiang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan, 610065, China
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16
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Padmavathi AR, Reddy GKK, Murthy PS, Nancharaiah YV. New arsenals for old armour: Biogenic nanoparticles in the battle against drug-resistant Candidaalbicans. Microb Pathog 2024; 194:106800. [PMID: 39025380 DOI: 10.1016/j.micpath.2024.106800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/01/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
Candida albicans is a common commensal fungus and fourth most frequent causative agent of nosocomial infections including life-threatening invasive candidiasis in humans. The effectiveness of present antifungal therapies using azoles, polyenes, flucytosine and echinocandins has plateaued in managing fungal infections. The limitations of these antifungal drugs are related to polymorphic morphology, biofilm formation, emergence of drug-resistant strains and production of several virulence factors. Development of new antifungal agents, which can particularly afflict multiple cellular targets and limiting evolving resistant strains are needed. Recently, metal nanoparticles have emerged as a source of new antifungal agents for antifungal formulations. Furthermore, green nanotechnology deals with the use of biosynthetic routes that offer new avenue for synthesizing antifungal nanoparticles coupled with less toxic chemical inventory and environmental sustainability. This article reviews the recent developments on C. albicans pathogenesis, biofilm formation, drug resistance, mode of action of antifungal drugs and antifungal activities of metal nanoparticles. The antifungal efficacy and mode of action of metal nanoparticles are described in the context of prospective therapeutic applications.
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Affiliation(s)
- Alwar Ramanujam Padmavathi
- Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Kalpakkam, 603 102, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India.
| | - G Kiran Kumar Reddy
- Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Kalpakkam, 603 102, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - P Sriyutha Murthy
- Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Kalpakkam, 603 102, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - Y V Nancharaiah
- Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Kalpakkam, 603 102, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
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17
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Zuriegat Q, Abubakar YS, Wang Z, Chen M, Zhang J. Emerging Roles of Exocyst Complex in Fungi: A Review. J Fungi (Basel) 2024; 10:614. [PMID: 39330374 PMCID: PMC11433146 DOI: 10.3390/jof10090614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/19/2024] [Accepted: 08/21/2024] [Indexed: 09/28/2024] Open
Abstract
The exocyst complex, an evolutionarily conserved octameric protein assembly, plays a central role in the targeted binding and fusion of vesicles at the plasma membrane. In fungal cells, this transport system is essential for polarized growth, morphogenesis, cell wall maintenance and virulence. Recent advances have greatly improved our understanding of the role and regulation of the exocyst complex in fungi. This review synthesizes these developments and focuses on the intricate interplay between the exocyst complex, specific fungal cargos and regulatory proteins. Insights into thestructure of the exocyst and its functional dynamics have revealed new dimensions of its architecture and its interactions with the cellular environment. Furthermore, the regulation of exocyst activity involves complex signaling pathways and interactions with cytoskeletal elements that are crucial for its role in vesicle trafficking. By exploring these emerging themes, this review provides a comprehensive overview of the multifaceted functions of the exocyst complex in fungal biology. Understanding these mechanisms offers potential avenues for novel therapeutic strategies against fungal pathogens and insights into the general principles of vesicle trafficking in eukaryotic cells. The review therefore highlights the importance of the exocyst complex in maintaining cellular functions and its broader implications in fungal pathogenicity and cell biology.
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Affiliation(s)
- Qussai Zuriegat
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.Z.); (Y.S.A.); (Z.W.)
| | - Yakubu Saddeeq Abubakar
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.Z.); (Y.S.A.); (Z.W.)
| | - Zonghua Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.Z.); (Y.S.A.); (Z.W.)
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Meilian Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Jun Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.Z.); (Y.S.A.); (Z.W.)
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18
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Xu J, Zhao Y, Zhou Y, Dai S, Zhu N, Meng Q, Fan S, Zhao W, Yuan X. Fungal Extracellular Vesicle Proteins with Potential in Biological Interaction. Molecules 2024; 29:4012. [PMID: 39274860 PMCID: PMC11396447 DOI: 10.3390/molecules29174012] [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: 07/17/2024] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/16/2024] Open
Abstract
Extracellular vesicles (EVs) are vesicle-like structures composed of lipid bilayers, which can be divided into apoptotic bodies, microbubbles and exosomes. They are nanoparticles used for the exchange of information between cells. EVs contains many substances, including protein. With the development of proteomics, we know more about the types and functions of protein in vesicles. The potential functions of proteins in the envelope are mainly discussed, including cell wall construction, fungal virulence transmission, signal transmission and redox reactions, which provides a new perspective for studying the interaction mechanism between fungi and other organisms. The fungal protein markers of EVs are also summarized, which provided an exploration tool for studying the mechanism of vesicles. In addition, the possible role of immune protein in the EVs in the treatment of human diseases is also discussed, which provides new ideas for vaccine development.
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Affiliation(s)
- Jingyan Xu
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Yujin Zhao
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Yanguang Zhou
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Shijie Dai
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Na Zhu
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Qingling Meng
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Sen Fan
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Weichun Zhao
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
| | - Xiaofeng Yuan
- College of Life Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou 310053, China
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Barbarossa A, Rosato A, Carrieri A, Fumarola L, Tardugno R, Corbo F, Fracchiolla G, Carocci A. Exploring the Antibiofilm Effect of Sertraline in Synergy with Cinnamomum verum Essential Oil to Counteract Candida Species. Pharmaceuticals (Basel) 2024; 17:1109. [PMID: 39338275 PMCID: PMC11435152 DOI: 10.3390/ph17091109] [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: 05/07/2024] [Revised: 08/07/2024] [Accepted: 08/21/2024] [Indexed: 09/30/2024] Open
Abstract
The emergence and spread of drug-resistant pathogens, resulting in antimicrobial resistance, continue to compromise our capability to handle commonly occurring infectious diseases. The rapid global spread of multi-drug-resistant pathogens, particularly systemic fungal infections, presents a significant concern, as existing antimicrobial drugs are becoming ineffective against them. In recent decades, there has been a notable increase in systemic fungal infections, primarily caused by Candida species, which are progressively developing resistance to azoles. Moreover, Candida species biofilms are among the most common in clinical settings. In particular, they adhere to biomedical devices, growing as a resilient biofilm capable of withstanding extraordinarily high antifungal concentrations. In recent years, many research programs have concentrated on the development of novel compounds with possible antimicrobial effects to address this issue, and new sources, such as plant-derived antimicrobial compounds, have been thoroughly investigated. Essential oils (EOs), among their numerous pharmacological properties, exhibit antifungal, antibacterial, and antiviral activities and have been examined at a global scale as the possible origin of novel antimicrobial compounds. A recent work carried out by our research group concerned the synergistic antibacterial activities of commercially available and chemically characterized Cinnamomum verum L. essential oil (C. verum EO) in association with sertraline, a selective serotonin reuptake inhibitor whose repositioning as a non-antibiotic drug has been explored over the years with encouraging results. The aim of this work was to explore the synergistic effects of C. verum EO with sertraline on both planktonic and sessile Candida species cells. Susceptibility testing and testing of the synergism of sertraline and C. verum EO against planktonic and sessile cells were performed using a broth microdilution assay and checkerboard methods. A synergistic effect was evident in both the planktonic cells and mature biofilms, with significant reductions in fungal viability. Indeed, the fractional inhibitory concentration index (FICI) was lower than 0.5 for all the associations, thus indicating significant synergism of the associations with the Candida strains examined. Moreover, the concentrations of sertraline able to inhibit Candida spp. strain growth and biofilm formation significantly decreased when it was used in combination with C. verum EO for all the strains considered, with a reduction percentage in the amount of each associated component ranging from 87.5% to 97%.
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Affiliation(s)
- Alexia Barbarossa
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Antonio Rosato
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Antonio Carrieri
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Luciana Fumarola
- Interdisciplinary Department of Medicine, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Roberta Tardugno
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Filomena Corbo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Giuseppe Fracchiolla
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Alessia Carocci
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
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20
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Calvi GDS, Cartaxo GNJ, Carretoni QL, da Silva ALM, de Moraes DN, Pradella JGDC, Costa MS. Inhibition of Development and Metabolism of Dual-Species Biofilms of Candida albicans and Candida krusei ( Pichia kudriavzevii) by Organoselenium Compounds. Pharmaceuticals (Basel) 2024; 17:1078. [PMID: 39204183 PMCID: PMC11359205 DOI: 10.3390/ph17081078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/07/2024] [Accepted: 08/14/2024] [Indexed: 09/03/2024] Open
Abstract
Although Candida albicans is the most frequently identified Candida species in clinical settings, a significant number of infections related to the non-albicans Candida (NAC) species, Candida krusei, has been reported. Both species are able to produce biofilms and have been an important resistance-related factor to antimicrobial resistance. In addition, the microbial relationship is common in the human body, contributing to the formation of polymicrobial biofilms. Considering the great number of reports showing the increase in cases of resistance to the available antifungal drugs, the development of new and effective antifungal agents is critical. The inhibitory effect of Organoselenium Compounds (OCs) on the development of Candida albicans and Candida krusei was recently demonstrated, supporting the potential of these compounds as efficient antifungal drugs. In addition, OCs were able to reduce the viability and the development of biofilms, a very important step in colonization and infection caused by fungi. Thus, the objective of this study was to investigate the effect of the Organoselenium Compounds (p-MeOPhSe)2, (PhSe)2, and (p-Cl-PhSe)2 on the development of dual-species biofilms of Candida albicans and Candida krusei produced using either RPMI-1640 or Sabouraud Dextrose Broth (SDB) media. The development of dual-species biofilms was evaluated by the determination of both metabolic activity, using a metabolic assay based on the reduction of XTT (2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide sodium salt) assay and identification of either Candida albicans and Candida krusei on CHROMagar Candida medium. Biofilm formation using RPMI-1640 was inhibited in 90, 55, and 20% by 30 µM (p-MeOPhSe)2, (PhSe)2, and (p-Cl-PhSe)2, respectively. However, biofilms produced using SDB presented an inhibition of 62, 30 and 15% in the presence of 30 µM (p-MeOPhSe)2, (PhSe)2, and (p-Cl-PhSe)2, respectively. The metabolic activity of 24 h biofilms was inhibited by 35, 30 and 20% by 30 µM (p-MeOPhSe)2, (PhSe)2, and (p-Cl-PhSe)2, respectively, with RPMI-1640; however, 24 h biofilms formed using SDB were not modified by the OCs. In addition, a great reduction in the number of CFUs of Candida albicans (93%) in biofilms produced using RPMI-1640 in the presence of 30 µM (p-MeOPhSe)2 was observed. However, biofilms formed using SDB and treated with 30 µM (p-MeOPhSe)2 presented a reduction of 97 and 69% in the number of CFUs of Candida albicans and Candida krusei, respectively. These results demonstrated that Organoselenium Compounds, mainly (p-MeOPhSe)2, are able to decrease the metabolic activity of dual-species biofilms by reducing both Candida albicans and Candida krusei cell number during biofilm formation using either RPMI-1640 or SDB. Taken together, these results demonstrated the potential of the OCs to inhibit the development of dual-species biofilms of Candida albicans and Candida krusei.
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Affiliation(s)
| | | | | | | | | | | | - Maricilia Silva Costa
- Instituto de Pesquisa & Desenvolvimento—IP&D, Universidade do Vale do Paraíba—UNIVAP, Av. Shishima Hifumi, 2911, São José dos Campos 12244-390, SP, Brazil; (G.d.S.C.); (G.N.J.C.); (Q.L.C.); (A.L.M.d.S.); (D.N.d.M.); (J.G.d.C.P.)
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21
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Zulli A, Chan EMG, Shelden B, Duong D, Xu XRS, White BJ, Wolfe MK, Boehm AB. Prospective study of Candida auris nucleic acids in wastewater solids in 190 wastewater treatment plants in the United States suggests widespread occurrence. mBio 2024; 15:e0090824. [PMID: 39041799 PMCID: PMC11323724 DOI: 10.1128/mbio.00908-24] [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: 03/25/2024] [Accepted: 07/01/2024] [Indexed: 07/24/2024] Open
Abstract
Candida auris is an emerging, multidrug-resistant fungal pathogen that poses a significant public health threat in healthcare settings. Despite yearly clinical cases rapidly increasing from 77 to 8,131 in the last decade, surveillance data on its distribution and prevalence remain limited. We implemented a novel assay for C. auris detection on a nationwide scale prospectively from September 2023 to March 2024, analyzing a total of 13,842 samples from 190 wastewater treatment plants across 41 U.S. states. Assays were extensively validated through comparison to other known assays and internal controls. Of these 190 wastewater treatment plants, C. auris was detected in the wastewater solids of 65 of them (34.2%) with 1.45% of all samples having detectable levels of C. auris nucleic-acids. Detections varied seasonally, with 2.00% of samples positive in autumn vs 1.01% in winter (P < 0.0001). The frequency of detection in wastewater was significantly associated with states having older populations (P < 0.001), sewersheds containing more hospitals (P < 0.0001), and sewersheds containing more nursing homes (P < 0.001). These associations are in agreement with known C. auris epidemiology. This nationwide study demonstrates the viability of wastewater surveillance for C. auris surveillance and further highlights the value of wastewater surveillance when clinical testing is constrained. IMPORTANCE This study highlights the viability of wastewater surveillance when dealing with emerging pathogens. By leveraging an existing framework of wastewater surveillance, we reveal the widespread presence of C. auris in the United States. We further demonstrate that these wastewater detections are consistent with demographic factors relevant to C. auris epidemiology like age and number of hospitals or nursing homes. As C. auris and other pathogens continue to emerge, the low-cost and rapid nature of wastewater surveillance will provide public health officials with the information necessary to enact targeted prevention and control strategies.
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Affiliation(s)
- Alessandro Zulli
- Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
| | - Elana M. G. Chan
- Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
| | | | - Dorothea Duong
- Verily Life Sciences LLC, South San Francisco, California, USA
| | - Xiang-Ru S. Xu
- Verily Life Sciences LLC, South San Francisco, California, USA
| | | | - Marlene K. Wolfe
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Alexandria B. Boehm
- Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
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22
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Lorenz MC. Regulatory complexity of cellular differentiation in Candida albicans revealed through systematic screening of protein kinase mutants. mBio 2024; 15:e0169824. [PMID: 39058031 PMCID: PMC11323536 DOI: 10.1128/mbio.01698-24] [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: 07/28/2024] Open
Abstract
A recent study in mBio reports the construction and preliminary screening of a library containing mutants of 99 of the 119 predicted protein kinases in Candida albicans (the majority of the remaining 20 are probably essential) (J. Kramara, M.-J. Kim, T. L. Ollinger, L. C. Ristow, et al., mBio e01249-24, 2024, https://doi.org/10.1128/mbio.01249-24). Using a quantitative competition assay in 10 conditions that represent nutritional, osmotic, cell wall, and pH stresses that are considered to model various aspects of the host environment allowed them to phenotypically cluster kinases, which highlight both the integration and specialization of signaling pathways, suggesting novel functions for many kinases. In addition, they tackle two complex and partially overlapping differentiation events, hyphal morphogenesis and biofilm formation. They find that a remarkable 88% of the viable kinase mutants in C. albicans affect hyphal growth, illustrating how integrated morphogenesis is in the overall biology of this organism, and begin to dissect the regulatory relationships that control this key virulence trait.
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Affiliation(s)
- Michael C. Lorenz
- Department of Microbiology and Molecular Genetics, University of Texas McGovern Medical School, Houston, Texas, USA
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23
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Corbu VM, Georgescu AM, Marinas IC, Pericleanu R, Mogos DV, Dumbravă AȘ, Marinescu L, Pecete I, Vassu-Dimov T, Czobor Barbu I, Csutak O, Ficai D, Gheorghe-Barbu I. Phenotypic and Genotypic Characterization of Resistance and Virulence Markers in Candida spp. Isolated from Community-Acquired Infections in Bucharest, and the Impact of AgNPs on the Highly Resistant Isolates. J Fungi (Basel) 2024; 10:563. [PMID: 39194889 DOI: 10.3390/jof10080563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 08/04/2024] [Accepted: 08/07/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND This study aimed to determine, at the phenotypic and molecular levels, resistance and virulence markers in Candida spp. isolated from community-acquired infections in Bucharest outpatients during 2021, and to demonstrate the efficiency of alternative solutions against them based on silver nanoparticles (AgNPs). METHODS A total of 62 Candida spp. strains were isolated from dermatomycoses and identified using chromogenic culture media and MALDI-TOF MS, and then investigated for their antimicrobial resistance and virulence markers (VMs), as well as for metabolic enzymes using enzymatic tests for the expression of soluble virulence factors, their biofilm formation and adherence capacity on HeLa cells, and PCR assays for the detection of virulence markers and the antimicrobial activity of alternative solutions based on AgNPs. RESULTS Of the total of 62 strains, 45.16% were Candida parapsilosis; 29.03% Candida albicans; 9.67% Candida guilliermondii; 3.22% Candida lusitaniae, Candia pararugosa, and Candida tropicalis; and 1.66% Candida kefyr, Candida famata, Candida haemulonii, and Candida metapsilosis. Aesculin hydrolysis, caseinase, and amylase production were detected in the analyzed strains. The strains exhibited different indices of adherence to HeLa cells and were positive in decreasing frequency order for the LIP1, HWP1, and ALS1,3 genes (C. tropicalis/C. albicans). An inhibitory effect on microbial growth, adherence capacity, and on the production of virulence factors was obtained using AgNPs. CONCLUSIONS The obtained results in C. albicans and Candida non-albicans circulating in Bucharest outpatients were characterized by moderate-to-high potential to produce VMs, necessitating epidemiological surveillance measures to minimize the chances of severe invasive infections.
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Affiliation(s)
- Viorica Maria Corbu
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
- The Research Institute of the University of Bucharest (ICUB), 050095 Bucharest, Romania
| | - Ana-Maria Georgescu
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
| | | | - Radu Pericleanu
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
| | - Denisa Vasilica Mogos
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
| | - Andreea Ștefania Dumbravă
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
- The Research Institute of the University of Bucharest (ICUB), 050095 Bucharest, Romania
| | - Liliana Marinescu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politechnica of Bucharest, 060042 Bucharest, Romania
| | - Ionut Pecete
- Central Reference Synevo-Medicover Laboratory, 021408 Bucharest, Romania
| | - Tatiana Vassu-Dimov
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
| | - Ilda Czobor Barbu
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
- The Research Institute of the University of Bucharest (ICUB), 050095 Bucharest, Romania
| | - Ortansa Csutak
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
- The Research Institute of the University of Bucharest (ICUB), 050095 Bucharest, Romania
| | - Denisa Ficai
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politechnica of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 3 Ilfov Street, 050045 Bucharest, Romania
| | - Irina Gheorghe-Barbu
- Faculty of Biology, University of Bucharest, Intrarea Portocalelor No. 1-3, 060101 Bucharest, Romania
- The Research Institute of the University of Bucharest (ICUB), 050095 Bucharest, Romania
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24
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Gupta P, Meher MK, Tripathi S, Poluri KM. Nanoformulations for dismantling fungal biofilms: The latest arsenals of antifungal therapy. Mol Aspects Med 2024; 98:101290. [PMID: 38945048 DOI: 10.1016/j.mam.2024.101290] [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: 08/13/2023] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Globally, fungal infections have evolved as a strenuous challenge for clinicians, particularly in patients with compromised immunity in intensive care units. Fungal co-infection in Covid-19 patients has made the situation more formidable for healthcare practitioners. Surface adhered fungal population known as biofilm often develop at the diseased site to elicit antifungal tolerance and recalcitrant traits. Thus, an innovative strategy is required to impede/eradicate developed biofilm and avoid the formation of new colonies. The development of nanocomposite-based antibiofilm solutions is the most appropriate way to withstand and dismantle biofilm structures. Nanocomposites can be utilized as a drug delivery medium and for fabrication of anti-biofilm surfaces capable to resist fungal colonization. In this context, the present review comprehensively described different forms of nanocomposites and mode of their action against fungal biofilms. Amongst various nanocomposites, efficacy of metal/organic nanoparticles and nanofibers are particularly emphasized to highlight their role in the pursuit of antibiofilm strategies. Further, the inevitable concern of nanotoxicology has also been introduced and discussed with the exigent need of addressing it while developing nano-based therapies. Further, a list of FDA-approved nano-based antifungal formulations for therapeutic usage available to date has been described. Collectively, the review highlights the potential, scope, and future of nanocomposite-based antibiofilm therapeutics to address the fungal biofilm management issue.
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Affiliation(s)
- Payal Gupta
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Department of Biotechnology, Graphic Era (Demmed to be Unievrsity), Dehradun, 248001, Uttarakhand, India
| | - Mukesh Kumar Meher
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Shweta Tripathi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Krishna Mohan Poluri
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
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25
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Lindemann-Perez E, Perez JC. Candida albicans natural diversity: a resource to dissect fungal commensalism and pathogenesis. Curr Opin Microbiol 2024; 80:102493. [PMID: 38833793 DOI: 10.1016/j.mib.2024.102493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/02/2024] [Accepted: 05/22/2024] [Indexed: 06/06/2024]
Abstract
Candida albicans is a ubiquitous fungus of humans. It is not only a component of the oral and intestinal microbiota of most healthy adults but also a major cause of mucosal disorders and life-threatening disseminated infections. Until recently, research on the biology and pathogenesis of the fungus was largely based on a single clinical isolate. We review investigations that have started to dissect a diverse set of C. albicans strains. Using different approaches to leverage the species' phenotypic and/or genetic diversity, these studies illuminate the wide range of interactions between fungus and host. While connecting genetic variants to phenotypes of interest remains challenging, research on C. albicans' natural diversity is central to understand fungal commensalism and pathogenesis.
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Affiliation(s)
- Elena Lindemann-Perez
- Department of Microbiology and Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, USA
| | - J Christian Perez
- Department of Microbiology and Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, USA.
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26
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Chen B, He J, Tian K, Qu J, Hong L, Lin Q, Yang K, Ma L, Xu X. Research Progress on Detection of Pathogens in Medical Wastewater by Electrochemical Biosensors. Molecules 2024; 29:3534. [PMID: 39124939 PMCID: PMC11314202 DOI: 10.3390/molecules29153534] [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: 06/16/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
The detection of pathogens in medical wastewater is crucial due to the high content of pathogenic microorganisms that pose significant risks to public health and the environment. Medical wastewater, which includes waste from infectious disease and tuberculosis facilities, as well as comprehensive medical institutions, contains a variety of pathogens such as bacteria, viruses, fungi, and parasites. Traditional detection methods like nucleic acid detection and immunological assays, while effective, are often time-consuming, expensive, and not suitable for rapid detection in underdeveloped areas. Electrochemical biosensors offer a promising alternative with advantages including simplicity, rapid response, portability, and low cost. This paper reviews the sources of pathogens in medical wastewater, highlighting specific bacteria (e.g., E. coli, Salmonella, Staphylococcus aureus), viruses (e.g., enterovirus, respiratory viruses, hepatitis virus), parasites, and fungi. It also discusses various electrochemical biosensing techniques such as voltammetry, conductometry, impedance, photoelectrochemical, and electrochemiluminescent biosensors. These technologies facilitate the rapid, sensitive, and specific detection of pathogens, thereby supporting public health and environmental safety. Future research may should pay more attention on enhancing sensor sensitivity and specificity, developing portable and cost-effective devices, and innovating detection methods for diverse pathogens to improve public health protection and environmental monitoring.
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Affiliation(s)
- Bangyao Chen
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Jiahuan He
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Kewei Tian
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Jie Qu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Lihui Hong
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Qin Lin
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Keda Yang
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Lei Ma
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing College of New Materials and Chemical Engineering, Institute of Petrochemical Technology, Beijing 102617, China
| | - Xiaoling Xu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
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27
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do Nascimento Dias J, Hurtado Erazo FA, Bessa LJ, Eaton P, Leite JRDSDA, Paes HC, Nicola AM, Silva-Pereira I, Albuquerque P. Synergic Effect of the Antimicrobial Peptide ToAP2 and Fluconazole on Candida albicans Biofilms. Int J Mol Sci 2024; 25:7769. [PMID: 39063009 PMCID: PMC11276877 DOI: 10.3390/ijms25147769] [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: 05/29/2024] [Revised: 06/29/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Candida albicans is one of the agents of invasive candidiasis, a life-threatening disease strongly associated with hospitalization, particularly among patients in intensive care units with central venous catheters. This study aimed to evaluate the synergistic activity of the antifungal peptide ToAP2 combined with fluconazole against C. albicans biofilms grown on various materials. We tested combinations of different concentrations of the peptide ToAP2 with fluconazole on C. albicans biofilms. These biofilms were generated on 96-well plates, intravenous catheters, and infusion tubes in RPMI medium at two maturation stages. Scanning electron microscopy and atomic force microscopy were employed to assess the biofilm structure. We also evaluated the expression of genes previously proven to be involved in C. albicans biofilm formation in planktonic and biofilm cells after treatment with the peptide ToAP2 using qPCR. ToAP2 demonstrated a synergistic effect with fluconazole at concentrations up to 25 µM during both the early and mature stages of biofilm formation in 96-well plates and on medical devices. Combinations of 50, 25, and 12.5 µM of ToAP2 with 52 µM of fluconazole significantly reduced the biofilm viability compared to individual treatments and untreated controls. These results were supported by substantial structural changes in the biofilms observed through both scanning and atomic force microscopy. The gene expression analysis of C. albicans cells treated with 25 µM of ToAP2 revealed a decrease in the expression of genes associated with membrane synthesis, along with an increase in the expression of genes involved in efflux pumps, adhesins, and filamentation. Our results highlight the efficacy of the combined ToAP2 and fluconazole treatment against C. albicans biofilms. This combination not only shows therapeutic potential but also suggests its utility in developing preventive biofilm tools for intravenous catheters.
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Affiliation(s)
- Jhones do Nascimento Dias
- Laboratory of Molecular Biology of Fungi, University of Brasilia, Brasilia 70910-900, Brazil; (J.d.N.D.); (F.A.H.E.)
| | - Fabián Andrés Hurtado Erazo
- Laboratory of Molecular Biology of Fungi, University of Brasilia, Brasilia 70910-900, Brazil; (J.d.N.D.); (F.A.H.E.)
| | - Lucinda J. Bessa
- LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (L.J.B.); (P.E.)
| | - Peter Eaton
- LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (L.J.B.); (P.E.)
- The Bridge, School of Chemistry, University of Lincoln, Lincoln LN6 7TS, UK
| | | | - Hugo Costa Paes
- Faculty of Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (H.C.P.); (A.M.N.)
| | - André Moraes Nicola
- Faculty of Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (H.C.P.); (A.M.N.)
| | - Ildinete Silva-Pereira
- Laboratory of Molecular Biology of Fungi, University of Brasilia, Brasilia 70910-900, Brazil; (J.d.N.D.); (F.A.H.E.)
| | - Patrícia Albuquerque
- Laboratory of Molecular Biology of Fungi, University of Brasilia, Brasilia 70910-900, Brazil; (J.d.N.D.); (F.A.H.E.)
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28
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Bhunjun C, Chen Y, Phukhamsakda C, Boekhout T, Groenewald J, McKenzie E, Francisco E, Frisvad J, Groenewald M, Hurdeal VG, Luangsa-ard J, Perrone G, Visagie C, Bai F, Błaszkowski J, Braun U, de Souza F, de Queiroz M, Dutta A, Gonkhom D, Goto B, Guarnaccia V, Hagen F, Houbraken J, Lachance M, Li J, Luo K, Magurno F, Mongkolsamrit S, Robert V, Roy N, Tibpromma S, Wanasinghe D, Wang D, Wei D, Zhao C, Aiphuk W, Ajayi-Oyetunde O, Arantes T, Araujo J, Begerow D, Bakhshi M, Barbosa R, Behrens F, Bensch K, Bezerra J, Bilański P, Bradley C, Bubner B, Burgess T, Buyck B, Čadež N, Cai L, Calaça F, Campbell L, Chaverri P, Chen Y, Chethana K, Coetzee B, Costa M, Chen Q, Custódio F, Dai Y, Damm U, Santiago A, De Miccolis Angelini R, Dijksterhuis J, Dissanayake A, Doilom M, Dong W, Álvarez-Duarte E, Fischer M, Gajanayake A, Gené J, Gomdola D, Gomes A, Hausner G, He M, Hou L, Iturrieta-González I, Jami F, Jankowiak R, Jayawardena R, Kandemir H, Kiss L, Kobmoo N, Kowalski T, Landi L, Lin C, Liu J, Liu X, Loizides M, Luangharn T, Maharachchikumbura S, Mkhwanazi GM, Manawasinghe I, Marin-Felix Y, McTaggart A, Moreau P, Morozova O, Mostert L, Osiewacz H, Pem D, Phookamsak R, Pollastro S, Pordel A, Poyntner C, Phillips A, Phonemany M, Promputtha I, Rathnayaka A, Rodrigues A, Romanazzi G, Rothmann L, Salgado-Salazar C, Sandoval-Denis M, Saupe S, Scholler M, Scott P, Shivas R, Silar P, Silva-Filho A, Souza-Motta C, Spies C, Stchigel A, Sterflinger K, Summerbell R, Svetasheva T, Takamatsu S, Theelen B, Theodoro R, Thines M, Thongklang N, Torres R, Turchetti B, van den Brule T, Wang X, Wartchow F, Welti S, Wijesinghe S, Wu F, Xu R, Yang Z, Yilmaz N, Yurkov A, Zhao L, Zhao R, Zhou N, Hyde K, Crous P. What are the 100 most cited fungal genera? Stud Mycol 2024; 108:1-411. [PMID: 39100921 PMCID: PMC11293126 DOI: 10.3114/sim.2024.108.01] [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: 02/12/2024] [Accepted: 03/17/2024] [Indexed: 08/06/2024] Open
Abstract
The global diversity of fungi has been estimated between 2 to 11 million species, of which only about 155 000 have been named. Most fungi are invisible to the unaided eye, but they represent a major component of biodiversity on our planet, and play essential ecological roles, supporting life as we know it. Although approximately 20 000 fungal genera are presently recognised, the ecology of most remains undetermined. Despite all this diversity, the mycological community actively researches some fungal genera more commonly than others. This poses an interesting question: why have some fungal genera impacted mycology and related fields more than others? To address this issue, we conducted a bibliometric analysis to identify the top 100 most cited fungal genera. A thorough database search of the Web of Science, Google Scholar, and PubMed was performed to establish which genera are most cited. The most cited 10 genera are Saccharomyces, Candida, Aspergillus, Fusarium, Penicillium, Trichoderma, Botrytis, Pichia, Cryptococcus and Alternaria. Case studies are presented for the 100 most cited genera with general background, notes on their ecology and economic significance and important research advances. This paper provides a historic overview of scientific research of these genera and the prospect for further research. Citation: Bhunjun CS, Chen YJ, Phukhamsakda C, Boekhout T, Groenewald JZ, McKenzie EHC, Francisco EC, Frisvad JC, Groenewald M, Hurdeal VG, Luangsa-ard J, Perrone G, Visagie CM, Bai FY, Błaszkowski J, Braun U, de Souza FA, de Queiroz MB, Dutta AK, Gonkhom D, Goto BT, Guarnaccia V, Hagen F, Houbraken J, Lachance MA, Li JJ, Luo KY, Magurno F, Mongkolsamrit S, Robert V, Roy N, Tibpromma S, Wanasinghe DN, Wang DQ, Wei DP, Zhao CL, Aiphuk W, Ajayi-Oyetunde O, Arantes TD, Araujo JC, Begerow D, Bakhshi M, Barbosa RN, Behrens FH, Bensch K, Bezerra JDP, Bilański P, Bradley CA, Bubner B, Burgess TI, Buyck B, Čadež N, Cai L, Calaça FJS, Campbell LJ, Chaverri P, Chen YY, Chethana KWT, Coetzee B, Costa MM, Chen Q, Custódio FA, Dai YC, Damm U, de Azevedo Santiago ALCM, De Miccolis Angelini RM, Dijksterhuis J, Dissanayake AJ, Doilom M, Dong W, Alvarez-Duarte E, Fischer M, Gajanayake AJ, Gené J, Gomdola D, Gomes AAM, Hausner G, He MQ, Hou L, Iturrieta-González I, Jami F, Jankowiak R, Jayawardena RS, Kandemir H, Kiss L, Kobmoo N, Kowalski T, Landi L, Lin CG, Liu JK, Liu XB, Loizides M, Luangharn T, Maharachchikumbura SSN, Makhathini Mkhwanazi GJ, Manawasinghe IS, Marin-Felix Y, McTaggart AR, Moreau PA, Morozova OV, Mostert L, Osiewacz HD, Pem D, Phookamsak R, Pollastro S, Pordel A, Poyntner C, Phillips AJL, Phonemany M, Promputtha I, Rathnayaka AR, Rodrigues AM, Romanazzi G, Rothmann L, Salgado-Salazar C, Sandoval-Denis M, Saupe SJ, Scholler M, Scott P, Shivas RG, Silar P, Souza-Motta CM, Silva-Filho AGS, Spies CFJ, Stchigel AM, Sterflinger K, Summerbell RC, Svetasheva TY, Takamatsu S, Theelen B, Theodoro RC, Thines M, Thongklang N, Torres R, Turchetti B, van den Brule T, Wang XW, Wartchow F, Welti S, Wijesinghe SN, Wu F, Xu R, Yang ZL, Yilmaz N, Yurkov A, Zhao L, Zhao RL, Zhou N, Hyde KD, Crous PW (2024). What are the 100 most cited fungal genera? Studies in Mycology 108: 1-411. doi: 10.3114/sim.2024.108.01.
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Affiliation(s)
- C.S. Bhunjun
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Y.J. Chen
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - C. Phukhamsakda
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - T. Boekhout
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- The Yeasts Foundation, Amsterdam, the Netherlands
| | - J.Z. Groenewald
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - E.H.C. McKenzie
- Landcare Research Manaaki Whenua, Private Bag 92170, Auckland, New Zealand
| | - E.C. Francisco
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- Laboratório Especial de Micologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - J.C. Frisvad
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | | | - V. G. Hurdeal
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - J. Luangsa-ard
- BIOTEC, National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - G. Perrone
- Institute of Sciences of Food Production, National Research Council (CNR-ISPA), Via G. Amendola 122/O, 70126 Bari, Italy
| | - C.M. Visagie
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - F.Y. Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - J. Błaszkowski
- Laboratory of Plant Protection, Department of Shaping of Environment, West Pomeranian University of Technology in Szczecin, Słowackiego 17, PL-71434 Szczecin, Poland
| | - U. Braun
- Martin Luther University, Institute of Biology, Department of Geobotany and Botanical Garden, Neuwerk 21, 06099 Halle (Saale), Germany
| | - F.A. de Souza
- Núcleo de Biologia Aplicada, Embrapa Milho e Sorgo, Empresa Brasileira de Pesquisa Agropecuária, Rodovia MG 424 km 45, 35701–970, Sete Lagoas, MG, Brazil
| | - M.B. de Queiroz
- Programa de Pós-graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal-RN, 59078-970, Brazil
| | - A.K. Dutta
- Molecular & Applied Mycology Laboratory, Department of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati - 781014, Assam, India
| | - D. Gonkhom
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - B.T. Goto
- Programa de Pós-graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal-RN, 59078-970, Brazil
| | - V. Guarnaccia
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Torino, Largo Braccini 2, 10095 Grugliasco, TO, Italy
| | - F. Hagen
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- Institute of Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, the Netherlands
| | - J. Houbraken
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - M.A. Lachance
- Department of Biology, University of Western Ontario London, Ontario, Canada N6A 5B7
| | - J.J. Li
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China
| | - K.Y. Luo
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China
| | - F. Magurno
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
| | - S. Mongkolsamrit
- BIOTEC, National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - V. Robert
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - N. Roy
- Molecular & Applied Mycology Laboratory, Department of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati - 781014, Assam, India
| | - S. Tibpromma
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, P.R. China
| | - D.N. Wanasinghe
- Center for Mountain Futures, Kunming Institute of Botany, Honghe 654400, Yunnan, China
| | - D.Q. Wang
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China
| | - D.P. Wei
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, P.R. China
| | - C.L. Zhao
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China
| | - W. Aiphuk
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - O. Ajayi-Oyetunde
- Syngenta Crop Protection, 410 S Swing Rd, Greensboro, NC. 27409, USA
| | - T.D. Arantes
- Laboratório de Micologia, Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, 74605-050, Goiânia, GO, Brazil
| | - J.C. Araujo
- Mykocosmos - Mycology and Science Communication, Rua JP 11 Qd. 18 Lote 13, Jd. Primavera 1ª etapa, Post Code 75.090-260, Anápolis, Goiás, Brazil
- Secretaria de Estado da Educação de Goiás (SEDUC/ GO), Quinta Avenida, Quadra 71, número 212, Setor Leste Vila Nova, Goiânia, Goiás, 74643-030, Brazil
| | - D. Begerow
- Organismic Botany and Mycology, Institute of Plant Sciences and Microbiology, Ohnhorststraße 18, 22609 Hamburg, Germany
| | - M. Bakhshi
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
| | - R.N. Barbosa
- Micoteca URM-Department of Mycology Prof. Chaves Batista, Federal University of Pernambuco, Av. Prof. Moraes Rego, s/n, Center for Biosciences, University City, Recife, Pernambuco, Zip Code: 50670-901, Brazil
| | - F.H. Behrens
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, D-76833 Siebeldingen, Germany
| | - K. Bensch
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - J.D.P. Bezerra
- Laboratório de Micologia, Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, 74605-050, Goiânia, GO, Brazil
| | - P. Bilański
- Department of Forest Ecosystems Protection, Faculty of Forestry, University of Agriculture in Krakow, Al. 29 Listopada 46, 31-425 Krakow, Poland
| | - C.A. Bradley
- Department of Plant Pathology, University of Kentucky, Princeton, KY 42445, USA
| | - B. Bubner
- Johan Heinrich von Thünen-Institut, Bundesforschungsinstitut für Ländliche Räume, Wald und Fischerei, Institut für Forstgenetik, Eberswalder Chaussee 3a, 15377 Waldsieversdorf, Germany
| | - T.I. Burgess
- Harry Butler Institute, Murdoch University, Murdoch, 6150, Australia
| | - B. Buyck
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, CP 39, 75231, Paris cedex 05, France
| | - N. Čadež
- University of Ljubljana, Biotechnical Faculty, Food Science and Technology Department Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - L. Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - F.J.S. Calaça
- Mykocosmos - Mycology and Science Communication, Rua JP 11 Qd. 18 Lote 13, Jd. Primavera 1ª etapa, Post Code 75.090-260, Anápolis, Goiás, Brazil
- Secretaria de Estado da Educação de Goiás (SEDUC/ GO), Quinta Avenida, Quadra 71, número 212, Setor Leste Vila Nova, Goiânia, Goiás, 74643-030, Brazil
- Laboratório de Pesquisa em Ensino de Ciências (LabPEC), Centro de Pesquisas e Educação Científica, Universidade Estadual de Goiás, Campus Central (CEPEC/UEG), Anápolis, GO, 75132-903, Brazil
| | - L.J. Campbell
- School of Veterinary Medicine, University of Wisconsin - Madison, Madison, Wisconsin, USA
| | - P. Chaverri
- Centro de Investigaciones en Productos Naturales (CIPRONA) and Escuela de Biología, Universidad de Costa Rica, 11501-2060, San José, Costa Rica
- Department of Natural Sciences, Bowie State University, Bowie, Maryland, U.S.A
| | - Y.Y. Chen
- Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - K.W.T. Chethana
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - B. Coetzee
- Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
- School for Data Sciences and Computational Thinking, University of Stellenbosch, South Africa
| | - M.M. Costa
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - Q. Chen
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - F.A. Custódio
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa-MG, Brazil
| | - Y.C. Dai
- State Key Laboratory of Efficient Production of Forest Resources, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - U. Damm
- Senckenberg Museum of Natural History Görlitz, PF 300 154, 02806 Görlitz, Germany
| | - A.L.C.M.A. Santiago
- Post-graduate course in the Biology of Fungi, Department of Mycology, Federal University of Pernambuco, Av. Prof. Moraes Rego, s/n, 50740-465, Recife, PE, Brazil
| | | | - J. Dijksterhuis
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - A.J. Dissanayake
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - M. Doilom
- Innovative Institute for Plant Health/Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China
| | - W. Dong
- Innovative Institute for Plant Health/Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China
| | - E. Álvarez-Duarte
- Mycology Unit, Microbiology and Mycology Program, Biomedical Sciences Institute, University of Chile, Chile
| | - M. Fischer
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, D-76833 Siebeldingen, Germany
| | - A.J. Gajanayake
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - J. Gené
- Unitat de Micologia i Microbiologia Ambiental, Facultat de Medicina i Ciències de la Salut & IURESCAT, Universitat Rovira i Virgili (URV), Reus, Catalonia Spain
| | - D. Gomdola
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - A.A.M. Gomes
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife-PE, Brazil
| | - G. Hausner
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 5N6
| | - M.Q. He
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - L. Hou
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- Key Laboratory of Space Nutrition and Food Engineering, China Astronaut Research and Training Center, Beijing, 100094, China
| | - I. Iturrieta-González
- Unitat de Micologia i Microbiologia Ambiental, Facultat de Medicina i Ciències de la Salut & IURESCAT, Universitat Rovira i Virgili (URV), Reus, Catalonia Spain
- Department of Preclinic Sciences, Medicine Faculty, Laboratory of Infectology and Clinical Immunology, Center of Excellence in Translational Medicine-Scientific and Technological Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile
| | - F. Jami
- Plant Health and Protection, Agricultural Research Council, Pretoria, South Africa
| | - R. Jankowiak
- Department of Forest Ecosystems Protection, Faculty of Forestry, University of Agriculture in Krakow, Al. 29 Listopada 46, 31-425 Krakow, Poland
| | - R.S. Jayawardena
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, South Korea
| | - H. Kandemir
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - L. Kiss
- Centre for Crop Health, Institute for Life Sciences and the Environment, University of Southern Queensland, QLD 4350 Toowoomba, Australia
- Centre for Research and Development, Eszterházy Károly Catholic University, H-3300 Eger, Hungary
| | - N. Kobmoo
- BIOTEC, National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - T. Kowalski
- Department of Forest Ecosystems Protection, Faculty of Forestry, University of Agriculture in Krakow, Al. 29 Listopada 46, 31-425 Krakow, Poland
| | - L. Landi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - C.G. Lin
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - J.K. Liu
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - X.B. Liu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, P.R. China
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Temesvári krt. 62, Szeged H-6726, Hungary
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | | | - T. Luangharn
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - S.S.N. Maharachchikumbura
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - G.J. Makhathini Mkhwanazi
- Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
| | - I.S. Manawasinghe
- Innovative Institute for Plant Health/Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China
| | - Y. Marin-Felix
- Department Microbial Drugs, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstrasse 7, 38106, Braunschweig, Germany
| | - A.R. McTaggart
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Ecosciences Precinct, Dutton Park 4102, Queensland, Australia
| | - P.A. Moreau
- Univ. Lille, ULR 4515 - LGCgE, Laboratoire de Génie Civil et géo-Environnement, F-59000 Lille, France
| | - O.V. Morozova
- Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Str., 197376 Saint Petersburg, Russia
- Tula State Lev Tolstoy Pedagogical University, 125, Lenin av., 300026 Tula, Russia
| | - L. Mostert
- Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
| | - H.D. Osiewacz
- Faculty for Biosciences, Institute for Molecular Biosciences, Goethe University, Max-von-Laue-Str. 9, 60438, Frankfurt/Main, Germany
| | - D. Pem
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - R. Phookamsak
- Center for Mountain Futures, Kunming Institute of Botany, Honghe 654400, Yunnan, China
| | - S. Pollastro
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Bari, Italy
| | - A. Pordel
- Plant Protection Research Department, Baluchestan Agricultural and Natural Resources Research and Education Center, AREEO, Iranshahr, Iran
| | - C. Poyntner
- Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria
| | - A.J.L. Phillips
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute (BioISI), Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - M. Phonemany
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - I. Promputtha
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - A.R. Rathnayaka
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - A.M. Rodrigues
- Laboratory of Emerging Fungal Pathogens, Department of Microbiology, Immunology, and Parasitology, Discipline of Cellular Biology, Federal University of São Paulo (UNIFESP), São Paulo, 04023062, Brazil
| | - G. Romanazzi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - L. Rothmann
- Plant Pathology, Department of Plant Sciences, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, 9301, South Africa
| | - C. Salgado-Salazar
- Mycology and Nematology Genetic Diversity and Biology Laboratory, U.S. Department of Agriculture, Agriculture Research Service (USDA-ARS), 10300 Baltimore Avenue, Beltsville MD, 20705, USA
| | - M. Sandoval-Denis
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - S.J. Saupe
- Institut de Biochimie et de Génétique Cellulaire, UMR 5095 CNRS Université de Bordeaux, 1 rue Camille Saint Saëns, 33077 Bordeaux cedex, France
| | - M. Scholler
- Staatliches Museum für Naturkunde Karlsruhe, Erbprinzenstraße 13, 76133 Karlsruhe, Germany
| | - P. Scott
- Harry Butler Institute, Murdoch University, Murdoch, 6150, Australia
- Sustainability and Biosecurity, Department of Primary Industries and Regional Development, Perth WA 6000, Australia
| | - R.G. Shivas
- Centre for Crop Health, Institute for Life Sciences and the Environment, University of Southern Queensland, QLD 4350 Toowoomba, Australia
| | - P. Silar
- Laboratoire Interdisciplinaire des Energies de Demain, Université de Paris Cité, 75205 Paris Cedex, France
| | - A.G.S. Silva-Filho
- IFungiLab, Departamento de Ciências e Matemática (DCM), Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP), São Paulo, BraziI
| | - C.M. Souza-Motta
- Micoteca URM-Department of Mycology Prof. Chaves Batista, Federal University of Pernambuco, Av. Prof. Moraes Rego, s/n, Center for Biosciences, University City, Recife, Pernambuco, Zip Code: 50670-901, Brazil
| | - C.F.J. Spies
- Agricultural Research Council - Plant Health and Protection, Private Bag X5017, Stellenbosch, 7599, South Africa
| | - A.M. Stchigel
- Unitat de Micologia i Microbiologia Ambiental, Facultat de Medicina i Ciències de la Salut & IURESCAT, Universitat Rovira i Virgili (URV), Reus, Catalonia Spain
| | - K. Sterflinger
- Institute of Natural Sciences and Technology in the Arts (INTK), Academy of Fine Arts Vienna, Augasse 2–6, 1090, Vienna, Austria
| | - R.C. Summerbell
- Sporometrics, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - T.Y. Svetasheva
- Tula State Lev Tolstoy Pedagogical University, 125, Lenin av., 300026 Tula, Russia
| | - S. Takamatsu
- Mie University, Graduate School, Department of Bioresources, 1577 Kurima-Machiya, Tsu 514-8507, Japan
| | - B. Theelen
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - R.C. Theodoro
- Laboratório de Micologia Médica, Instituto de Medicina Tropical do RN, Universidade Federal do Rio Grande do Norte, 59078-900, Natal, RN, Brazil
| | - M. Thines
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325 Frankfurt Am Main, Germany
| | - N. Thongklang
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - R. Torres
- IRTA, Postharvest Programme, Edifici Fruitcentre, Parc Agrobiotech de Lleida, Parc de Gardeny, 25003, Lleida, Catalonia, Spain
| | - B. Turchetti
- Department of Agricultural, Food and Environmental Sciences and DBVPG Industrial Yeasts Collection, University of Perugia, Italy
| | - T. van den Brule
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- TIFN, P.O. Box 557, 6700 AN Wageningen, the Netherlands
| | - X.W. Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - F. Wartchow
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Paraiba, João Pessoa, Brazil
| | - S. Welti
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstrasse 7, 38106, Braunschweig, Germany
| | - S.N. Wijesinghe
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand
| | - F. Wu
- State Key Laboratory of Efficient Production of Forest Resources, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - R. Xu
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
- Internationally Cooperative Research Center of China for New Germplasm Breeding of Edible Mushroom, Jilin Agricultural University, Changchun 130118, China
| | - Z.L. Yang
- Syngenta Crop Protection, 410 S Swing Rd, Greensboro, NC. 27409, USA
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - N. Yilmaz
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - A. Yurkov
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Brunswick, Germany
| | - L. Zhao
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - R.L. Zhao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - N. Zhou
- Department of Biological Sciences and Biotechnology, Botswana University of Science and Technology, Private Bag, 16, Palapye, Botswana
| | - K.D. Hyde
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Innovative Institute for Plant Health/Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China
- Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - P.W. Crous
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
- Microbiology, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht
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Kumar D, Kumar A. Molecular Determinants Involved in Candida albicans Biofilm Formation and Regulation. Mol Biotechnol 2024; 66:1640-1659. [PMID: 37410258 DOI: 10.1007/s12033-023-00796-x] [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: 03/30/2023] [Accepted: 06/14/2023] [Indexed: 07/07/2023]
Abstract
Candida albicans is known for its pathogenicity, although it lives within the human body as a commensal member. The commensal nature of C. albicans is well controlled and regulated by the host's immune system as they live in the harmonized microenvironment. However, the development of certain unusual microhabitat conditions (change in pH, co-inhabiting microorganisms' population ratio, debilitated host-immune system) pokes this commensal fungus to transform into a pathogen in such a way that it starts to propagate very rapidly and tries to breach the epithelial barrier to enter the host's systemic circulations. In addition, Candida is infamous as a major nosocomial (hospital-acquired infection) agent because it enters the human body through venous catheters or medical prostheses. The hysterical mode of C. albicans growth builds its microcolony or biofilm, which is pathogenic for the host. Biofilms propose additional resistance mechanisms from host immunity or extracellular chemicals to aid their survival. Differential gene expressions and regulations within the biofilms cause altered morphology and metabolism. The genes associated with adhesiveness, hyphal/pseudo-hyphal growth, persister cell transformation, and biofilm formation by C. albicans are controlled by myriads of cell-signaling regulators. These genes' transcription is controlled by different molecular determinants like transcription factors and regulators. Therefore, this review has focused discussion on host-immune-sensing molecular determinants of Candida during biofilm formation, regulatory descriptors (secondary messengers, regulatory RNAs, transcription factors) of Candida involved in biofilm formation that could enable small-molecule drug discovery against these molecular determinants, and lead to disrupt the well-structured Candida biofilms effectively.
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Affiliation(s)
- Dushyant Kumar
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, 492010, India
| | - Awanish Kumar
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, 492010, India.
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30
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Vieira Melo AK, da Nóbrega Alves D, Queiroga Gomes da Costa PC, Pereira Lopes S, Pergentino de Sousa D, Queiroga Sarmento Guerra F, Vieira Sobral M, Gomes Moura AP, Scotti L, Dias de Castro R. Antifungal Activity, Mode of Action, and Cytotoxicity of 4-Chlorobenzyl p-Coumarate: A Promising New Molecule. Chem Biodivers 2024; 21:e202400330. [PMID: 38701178 DOI: 10.1002/cbdv.202400330] [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: 02/09/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/05/2024]
Abstract
Fungal infections represent a serious health problem worldwide. The study evaluated the antifungal activity of 4-chlorobenzyl p-coumarate, an unprecedented semi-synthetic molecule. Docking molecular and assay experiments were conducted to determine the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC), mode of action, effect on growth, fungal death kinetics, drug association, effects on biofilm, micromorphology, and against human keratinocytes. The investigation included 16 strains of Candida spp, including C. albicans, C. krusei, C. glabrata, C. tropicalis, C. dubliniensis, C. lusitaniae, C. utilis, C. rugosa, C. guilhermondi, and C. parapsilosis. Docking analysis predicted affinity between the molecule and all tested targets. MIC and MFC values ranged from 3.9 μg/mL (13.54 μM) to 62.5 μg/mL (217.01 μM), indicating a probable effect on the plasma membrane. The molecule inhibited growth from the first hour of testing. Association with nystatin proved to be indifferent. All concentrations of the molecule reduced fungal biofilm. The compound altered fungal micromorphology. The tested compound exhibited an IC50 of 7.90±0.40 μg/mL (27.45±1.42 μM) for keratinocytes. 4-chlorobenzyl p-coumarate showed strong fungicidal effects, likely through its action on the plasma membrane and alteration of fungal micromorphology, and mildly cytotoxic to human keratinocytes.
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Affiliation(s)
- Ana Karoline Vieira Melo
- Department of Clinical and Social Dentistry, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Danielle da Nóbrega Alves
- Department of Clinical and Social Dentistry, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil, Lauro Wanderley University Hospital, 58050-585, João Pessoa, PB, Brazil
| | | | - Susiany Pereira Lopes
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Damião Pergentino de Sousa
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Felipe Queiroga Sarmento Guerra
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Marianna Vieira Sobral
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Ana Paula Gomes Moura
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Luciana Scotti
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Ricardo Dias de Castro
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Paraiba, Campus I, 58051-900, João Pessoa, PB, Brazil
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Li S, Xv Y, Sun Y, Shen Z, Hao R, Yan J, Liu M, Liu Z, Jing T, Li X, Zhang X. Macrophage-derived CD36 + exosome subpopulations as novel biomarkers of Candida albicans infection. Sci Rep 2024; 14:14723. [PMID: 38926392 PMCID: PMC11208550 DOI: 10.1038/s41598-024-60032-7] [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: 12/29/2023] [Accepted: 04/18/2024] [Indexed: 06/28/2024] Open
Abstract
Invasive candidiasis (IC) is a notable healthcare-associated fungal infection, characterized by high morbidity, mortality, and substantial treatment costs. Candida albicans emerges as a principal pathogen in this context. Recent academic advancements have shed light on the critical role of exosomes in key biological processes, such as immune responses and antigen presentation. This burgeoning body of research underscores the potential of exosomes in the realm of medical diagnostics and therapeutics, particularly in relation to fungal infections like IC. The exploration of exosomal functions in the pathophysiology of IC not only enhances our understanding of the disease but also opens new avenues for innovative therapeutic interventions. In this investigation, we focus on exosomes (Exos) secreted by macrophages, both uninfected and those infected with C. albicans. Our objective is to extract and analyze these exosomes, delving into the nuances of their protein compositions and subgroups. To achieve this, we employ an innovative technique known as Proximity Barcoding Assay (PBA). This methodology is pivotal in our quest to identify novel biological targets, which could significantly enhance the diagnostic and therapeutic approaches for C. albicans infection. The comparative analysis of exosomal contents from these two distinct cellular states promises to yield insightful data, potentially leading to breakthroughs in understanding and treating this invasive fungal infection. In our study, we analyzed differentially expressed proteins in exosomes from macrophages and C. albicans -infected macrophages, focusing on proteins such as ACE2, CD36, CAV1, LAMP2, CD27, and MPO. We also examined exosome subpopulations, finding a dominant expression of MPO in the most prevalent subgroup, and a distinct expression of CD36 in cluster14. These findings are crucial for understanding the host response to C. albicans and may inform targeted diagnostic and therapeutic approaches. Our study leads us to infer that MPO and CD36 proteins may play roles in the immune escape mechanisms of C. albicans. Additionally, the CD36 exosome subpopulations, identified through our analysis, could serve as potential biomarkers and therapeutic targets for C. albicans infection. This insight opens new avenues for understanding the infection's pathology and developing targeted treatments.
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Affiliation(s)
- Shuo Li
- Clinical Medical College of Hebei University of Engineering, Handan, 056000, China
| | - Yanyan Xv
- Department of Dermatology, Affiliated Hospital of Hebei University of Engineering, Handan, 056000, China
| | - Yuanyuan Sun
- Hebei Medical University, Shijiazhuang, 050000, China
| | - Ziyi Shen
- The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Ruiying Hao
- Clinical Medical College of Hebei University of Engineering, Handan, 056000, China
| | - Jingjing Yan
- Clinical Medical College of Hebei University of Engineering, Handan, 056000, China
| | - Mengru Liu
- Clinical Medical College of Hebei University of Engineering, Handan, 056000, China
| | - Zhao Liu
- Department of Dermatology, Affiliated Hospital of Hebei University of Engineering, Handan, 056000, China
| | - Tingting Jing
- Department of Dermatology, Affiliated Hospital of Hebei University of Engineering, Handan, 056000, China
| | - Xiaojing Li
- Department of Dermatology, Affiliated Hospital of Hebei University of Engineering, Handan, 056000, China.
| | - Xiujuan Zhang
- Department of Laboratory, Affiliated Hospital of Hebei University of Engineering, Handan, 056000, China.
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Wang Z, Zhang Q, Zhang H, Lu Y. Roles of alcohol dehydrogenase 1 in the biological activities of Candida albicans. Crit Rev Microbiol 2024:1-15. [PMID: 38916139 DOI: 10.1080/1040841x.2024.2371510] [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: 11/17/2023] [Accepted: 06/04/2024] [Indexed: 06/26/2024]
Abstract
Candida albicans stands as the foremost prevalent human commensal pathogen and a significant contributor to nosocomial fungal infections. In the metabolism of C. albicans, alcohol dehydrogenase 1 (Adh1) is one of the important enzymes that converts acetaldehyde produced by pyruvate decarboxylation into ethanol at the end of glycolysis. Leveraging the foundational processes of alcoholic fermentation, Adh1 plays an active role in multiple biological phenomena, including biofilm formation, interactions between different species, the development of drug resistance, and the potential initiation of gastrointestinal cancer. Additionally, Adh1 within C. albicans has demonstrated associations with regulating the cell cycle, stress responses, and various intracellular states. Furthermore, Adh1 is extracellularly localized on the cell wall surface, where it plays roles in processes such as tissue invasion and host immune responses. Drawing from an analysis of ADH1 gene structure, expression patterns, and fundamental functions, this review elucidates the intricate connections between Adh1 and various biological processes within C. albicans, underscoring its potential implications for the prevention, diagnosis, and treatment of candidiasis.
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Affiliation(s)
- Ziqi Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Qi Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Haoying Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yuanyuan Lu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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Guo L, Zheng L, Dong Y, Wang C, Deng H, Wang Z, Xu Y. Miconazole induces aneuploidy-mediated tolerance in Candida albicans that is dependent on Hsp90 and calcineurin. Front Cell Infect Microbiol 2024; 14:1392564. [PMID: 38983116 PMCID: PMC11231705 DOI: 10.3389/fcimb.2024.1392564] [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: 02/27/2024] [Accepted: 06/12/2024] [Indexed: 07/11/2024] Open
Abstract
Antifungal resistance and antifungal tolerance are two distinct terms that describe different cellular responses to drugs. Antifungal resistance describes the ability of a fungus to grow above the minimal inhibitory concentration (MIC) of a drug. Antifungal tolerance describes the ability of drug susceptible strains to grow slowly at inhibitory drug concentrations. Recent studies indicate antifungal resistance and tolerance have distinct evolutionary trajectories. Superficial candidiasis bothers millions of people yearly. Miconazole has been used for topical treatment of yeast infections for over 40 years. Yet, fungal resistance to miconazole remains relatively low. Here we found different clinical isolates of Candida albicans had different profile of tolerance to miconazole, and the tolerance was modulated by physiological factors including temperature and medium composition. Exposure of non-tolerant strains with different genetic backgrounds to miconazole mainly induced development of tolerance, not resistance, and the tolerance was mainly due to whole chromosomal or segmental amplification of chromosome R. The efflux gene CDR1 was required for maintenance of tolerance in wild type strains but not required for gain of aneuploidy-mediated tolerance. Heat shock protein Hsp90 and calcineurin were essential for maintenance as well as gain of tolerance. Our study indicates development of aneuploidy-mediated tolerance, not resistance, is the predominant mechanism of rapid adaptation to miconazole in C. albicans, and the clinical relevance of tolerance deserves further investigations.
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Affiliation(s)
- Liangsheng Guo
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Lijun Zheng
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yubo Dong
- Department of Pharmacy, The 960th Hospital of PLA, Jinan, China
| | - Chen Wang
- Department of Pharmacy, The 960th Hospital of PLA, Jinan, China
| | - Huijie Deng
- Department of Pharmacy, The 960th Hospital of PLA, Jinan, China
| | - Zongjie Wang
- Department of Pharmacy, The 960th Hospital of PLA, Jinan, China
| | - Yi Xu
- Department of Pharmacy, The 960th Hospital of PLA, Jinan, China
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Jandl B, Dighe S, Baumgartner M, Makristathis A, Gasche C, Muttenthaler M. Gastrointestinal Biofilms: Endoscopic Detection, Disease Relevance, and Therapeutic Strategies. Gastroenterology 2024:S0016-5085(24)05054-6. [PMID: 38876174 DOI: 10.1053/j.gastro.2024.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 04/10/2024] [Accepted: 04/15/2024] [Indexed: 06/16/2024]
Abstract
Gastrointestinal biofilms are matrix-enclosed, highly heterogenic and spatially organized polymicrobial communities that can cover large areas in the gastrointestinal tract. Gut microbiota dysbiosis, mucus disruption, and epithelial invasion are associated with pathogenic biofilms that have been linked to gastrointestinal disorders such as irritable bowel syndrome, inflammatory bowel diseases, gastric cancer, and colorectal cancer. Intestinal biofilms are highly prevalent in ulcerative colitis and irritable bowel syndrome patients, and most endoscopists will have observed such biofilms during colonoscopy, maybe without appreciating their biological and clinical importance. Gut biofilms have a protective extracellular matrix that renders them challenging to treat, and effective therapies are yet to be developed. This review covers gastrointestinal biofilm formation, growth, appearance and detection, biofilm architecture and signalling, human host defence mechanisms, disease and clinical relevance of biofilms, therapeutic approaches, and future perspectives. Critical knowledge gaps and open research questions regarding the biofilm's exact pathophysiological relevance and key hurdles in translating therapeutic advances into the clinic are discussed. Taken together, this review summarizes the status quo in gut biofilm research and provides perspectives and guidance for future research and therapeutic strategies.
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Affiliation(s)
- Bernhard Jandl
- Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria; University of Vienna, Vienna Doctoral School in Chemistry, Vienna, Austria; Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia; Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
| | - Satish Dighe
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Maximillian Baumgartner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Athanasios Makristathis
- Division of Clinical Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Christoph Gasche
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria; Loha for Life, Center for Gastroenterology and Iron Deficiency, Vienna, Austria
| | - Markus Muttenthaler
- Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria; Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia.
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Rai LS, Chauvel M, Sanchez H, van Wijlick L, Maufrais C, Cokelaer T, Sertour N, Legrand M, Sanyal K, Andes DR, Bachellier-Bassi S, d’Enfert C. Metabolic reprogramming during Candida albicans planktonic-biofilm transition is modulated by the transcription factors Zcf15 and Zcf26. PLoS Biol 2024; 22:e3002693. [PMID: 38905306 PMCID: PMC11221756 DOI: 10.1371/journal.pbio.3002693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 07/03/2024] [Accepted: 05/29/2024] [Indexed: 06/23/2024] Open
Abstract
Candida albicans is a commensal of the human microbiota that can form biofilms on implanted medical devices. These biofilms are tolerant to antifungals and to the host immune system. To identify novel genes modulating C. albicans biofilm formation, we performed a large-scale screen with 2,454 C. albicans doxycycline-dependent overexpression strains and identified 16 genes whose overexpression significantly hampered biofilm formation. Among those, overexpression of the ZCF15 and ZCF26 paralogs that encode transcription factors and have orthologs only in biofilm-forming species of the Candida clade, caused impaired biofilm formation both in vitro and in vivo. Interestingly, overexpression of ZCF15 impeded biofilm formation without any defect in hyphal growth. Transcript profiling, transcription factor binding, and phenotypic microarray analyses conducted upon overexpression of ZCF15 and ZCF26 demonstrated their role in reprogramming cellular metabolism by regulating central metabolism including glyoxylate and tricarboxylic acid cycle genes. Taken together, this study has identified a new set of biofilm regulators, including ZCF15 and ZCF26, that appear to control biofilm development through their specific role in metabolic remodeling.
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Affiliation(s)
- Laxmi Shanker Rai
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
- Department of Life Sciences, GITAM University, Bengaluru, Karnataka 561203, India
| | - Murielle Chauvel
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Hiram Sanchez
- Department of Medicine, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Lasse van Wijlick
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Corinne Maufrais
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Thomas Cokelaer
- Institut Pasteur, Université Paris Cité, Hub de Bioinformatique et Biostatistique, Paris, France
| | - Natacha Sertour
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Mélanie Legrand
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Kaustuv Sanyal
- Molecular Mycology Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India
- Department of Biological Sciences, Bose Institute, Unified Academic Campus, EN-80, Sector-V, Salt Lake City, Kolkata, India
| | - David R. Andes
- Department of Medicine, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Sophie Bachellier-Bassi
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
| | - Christophe d’Enfert
- Institut Pasteur, Université Paris Cité, INRAE USC2019, Unité Biologie et Pathogénicité Fongiques, Paris, France
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Tseng KY, Huang YT, Huang YT, Su YT, Wang AN, Weng WY, Ke CL, Yeh YC, Wang JJ, Du SH, Gu ZQ, Chen WL, Lin CH, Tsai YH. Regulation of candidalysin underlies Candida albicans persistence in intravascular catheters by modulating NETosis. PLoS Pathog 2024; 20:e1012319. [PMID: 38885290 PMCID: PMC11213320 DOI: 10.1371/journal.ppat.1012319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 06/28/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024] Open
Abstract
Candida albicans is a leading cause of intravascular catheter-related infections. The capacity for biofilm formation has been proposed to contribute to the persistence of this fungal pathogen on catheter surfaces. While efforts have been devoted to identifying microbial factors that modulate C. albicans biofilm formation in vitro, our understanding of the host factors that may shape C. albicans persistence in intravascular catheters is lacking. Here, we used multiphoton microscopy to characterize biofilms in intravascular catheters removed from candidiasis patients. We demonstrated that, NETosis, a type of neutrophil cell death with antimicrobial activity, was implicated in the interaction of immune cells with C. albicans in the catheters. The catheter isolates exhibited reduced filamentation and candidalysin gene expression, specifically in the total parenteral nutrition culture environment. Furthermore, we showed that the ablation of candidalysin expression in C. albicans reduced NETosis and conferred resistance to neutrophil-mediated fungal biofilm elimination. Our findings illustrate the role of neutrophil NETosis in modulating C. albicans biofilm persistence in an intravascular catheter, highlighting that C. albicans can benefit from reduced virulence expression to promote its persistence in an intravascular catheter.
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Affiliation(s)
- Kuo-Yao Tseng
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Tsung Huang
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Yu-Ting Huang
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Ting Su
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - An-Ni Wang
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wen-Yen Weng
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Cai-Ling Ke
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Chiao Yeh
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Jhih-Jie Wang
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shin-Hei Du
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Zi-Qi Gu
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Lin Chen
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Ching-Hsuan Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Huan Tsai
- Laboratory of Host–Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan
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Kortei NK, Gillette VS, Wiafe-Kwagyan M, Ansah LO, Kyei-Baffour V, Odamtten GT. Fungal profile, levels of aflatoxin M1, exposure, and the risk characterization of local cheese ' wagashi' consumed in the Ho Municipality, Volta Region, Ghana. Toxicol Rep 2024; 12:186-199. [PMID: 38313814 PMCID: PMC10837644 DOI: 10.1016/j.toxrep.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 02/06/2024] Open
Abstract
Wagashi is a West African type cottage cheese locally prepared from cow milk. Wagashi like other milk products, is prone to microbial contamination, particularly by fungi. Many of these fungal species produce mycotoxins which are of serious public health concern. This work aimed to update the mycoflora profile and determine the concentrations of aflatoxin M1 and its health risk characterization due to the consumption of wagashi. Culturing the wagashi on mycological media (Oxytetracycline Glucose Yeast Extract OGYE, Dichloran Rose Bengal Chloramphenicol DRBC) caused a de-novo growth of the quiescent spores at 28-30 °C for 5-7 days. The analysis of AFM1 levels in the samples was done using High-Performance Liquid Chromatography connected to a Fluorescence detector (HPLC-FLD). The exposure and risk assessment to the AFMI levels were determined using deterministic models prescribed by the European Food Safety Authority (EFSA). The fungal counts ranged between 2.36-4.30 log10 CFU/g. In total, thirteen (13) fungal species from eight (8) genera were isolated from all wagashi samples. They are; Fusarium oxysporum, Aspergillus flavus, Aspergillus niger, Fusarium verticillioides, Penicillium digitatum, Trichoderma harzianum, Aspergillus terreus, Rhodotorula mucilaginosa, Rhizopus stolonifer, Aspergillus fumigatus, Yeast sp., Mucor racemosus and Fusarium oligosporum belonging to the genera Fusarium, Aspergillus, Penicillium, Trichoderma, Rhodotorula, Rhizopus, Yeast, and Mucor. The AFM1 observed in the wagashi samples' analysis was low, ranging from 0.00 (Not Detected) ± 0.00 - 0.06 ± 0.002 µg/Kg. Risk assessments of AFM1 using deterministic models produced outcomes that ranged between 5.92 × 10-3- 0.14 ng/kg bw/day, 1.42 -44.35, 0-0.0323 ng aflatoxins/kg bw/day, and 1.51 × 10-3 - 9.69 × 10-4 cases/100,000 person/yr for estimated daily intake (EDI), margin of exposure (MOE), average potency, and cancer risks, respectively, for the age categories investigated. Fungal counts were interpreted as medium to high. It was also established that the consumption of wagashi may pose adverse health effects on all age categories in the selected zones of the study since all calculated MOE values were less than 100,000.
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Affiliation(s)
- Nii Korley Kortei
- Department of Nutrition and Dietetics, School of Allied Health Sciences, University of Health and Allied Sciences, PMB 31, Ho, Ghana
- Department of Sports Nutrition, School of Sports and Exercise Medicine, University of Health and Allied Sciences, PMB 31, Ho, Ghana
| | - Valentina Sylvia Gillette
- Department of Nutrition and Dietetics, School of Allied Health Sciences, University of Health and Allied Sciences, PMB 31, Ho, Ghana
| | - Michael Wiafe-Kwagyan
- Department of Plant and Environmental Biology, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 55, Legon, Ghana
| | - Leslie Owusu Ansah
- Department of Food Laboratory, Food and Drugs Authority, P.O. Box CT 2783, Cantonments, Accra, Ghana
| | - Vincent Kyei-Baffour
- Food Chemistry and Nutrition Research Division, Council for Scientific and Industrial Research, Food Research Institute, P. O. Box M20, Accra, Ghana
| | - George Tawia Odamtten
- Department of Plant and Environmental Biology, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 55, Legon, Ghana
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Kattner AA. And those who were seen dancing: Human interactions with fungi and vice versa. Biomed J 2024; 47:100755. [PMID: 38901797 PMCID: PMC11245968 DOI: 10.1016/j.bj.2024.100755] [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: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024] Open
Abstract
This issue of the Biomedical Journal features a special section exploring mycobiota. Three articles examine the role of fungi in common metabolic disorders in, Clostridium difficile infection, and in immunocompromised patients. Additionally, the potential and challenges of the metaverse in healthcare are reviewed, alongside a holistic approach to improve patient outcomes in pancreatic cancer. In this issue also possible mechanism contributing to long COVID are discussed, as well as biomarkers that effectively predict sepsis outcomes, and key targets in osteosarcoma progression. Moreover, factors leading to peri-intubation cardiac arrest are analyzed, healthcare strategies from various regions are employed to predict cardiovascular events in Asian populations, two approaches to cavernous sinus dural arteriovenous fistula are compared, and a combination therapy against soft tissue sarcoma is presented.
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Araújo GR, da Costa PCQG, Nogueira PL, Alves DDN, Ferreira AR, da Silva PR, de Andrade JC, de Sousa NF, Loureiro PBA, Sobral MV, Sousa DP, Scotti MT, de Castro RD, Scotti L. In Silico and In Vitro Evaluation of the Antifungal Activity of a New Chromone Derivative against Candida spp. BIOTECH 2024; 13:16. [PMID: 38921048 PMCID: PMC11201913 DOI: 10.3390/biotech13020016] [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: 04/10/2024] [Revised: 05/10/2024] [Accepted: 05/20/2024] [Indexed: 06/27/2024] Open
Abstract
Candida species are frequently implicated in the development of both superficial and invasive fungal infections, which can impact vital organs. In the quest for novel strategies to combat fungal infections, there has been growing interest in exploring synthetic and semi-synthetic products, particularly chromone derivatives, renowned for their antimicrobial properties. In the analysis of the antifungal activity of the compound (E)-benzylidene-chroman-4-one against Candida, in silico and laboratory tests were performed to predict possible mechanisms of action pathways, and in vitro tests were performed to determine antifungal activity (MIC and MFC), to verify potential modes of action on the fungal cell membrane and wall, and to assess cytotoxicity in human keratinocytes. The tested compound exhibited predicted affinity for all fungal targets, with the highest predicted affinity observed for thymidylate synthase (-102.589 kJ/mol). MIC and CFM values ranged from 264.52 μM (62.5 μg/mL) to 4232.44 μM (1000 μg/mL). The antifungal effect likely occurs due to the action of the compound on the plasma membrane. Therefore, (E)-benzylidene-chroman-4-one showed fungicidal-like activity against Candida spp., possibly targeting the plasma membrane.
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Affiliation(s)
- Gleycyelly Rodrigues Araújo
- Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil;
| | - Palloma Christine Queiroga Gomes da Costa
- Postgraduate Program in Dentistry, Department of Clinic and Social Dentistry, Center of Health Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (P.C.Q.G.d.C.); (P.L.N.); (D.d.N.A.); (P.R.d.S.)
| | - Paula Lima Nogueira
- Postgraduate Program in Dentistry, Department of Clinic and Social Dentistry, Center of Health Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (P.C.Q.G.d.C.); (P.L.N.); (D.d.N.A.); (P.R.d.S.)
| | - Danielle da Nóbrega Alves
- Postgraduate Program in Dentistry, Department of Clinic and Social Dentistry, Center of Health Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (P.C.Q.G.d.C.); (P.L.N.); (D.d.N.A.); (P.R.d.S.)
| | - Alana Rodrigues Ferreira
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Pablo R. da Silva
- Postgraduate Program in Dentistry, Department of Clinic and Social Dentistry, Center of Health Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (P.C.Q.G.d.C.); (P.L.N.); (D.d.N.A.); (P.R.d.S.)
| | - Jéssica Cabral de Andrade
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Natália F. de Sousa
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Paulo Bruno Araujo Loureiro
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Marianna Vieira Sobral
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Damião P. Sousa
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Marcus Tullius Scotti
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Ricardo Dias de Castro
- Postgraduate Program in Dentistry, Department of Clinic and Social Dentistry, Center of Health Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (P.C.Q.G.d.C.); (P.L.N.); (D.d.N.A.); (P.R.d.S.)
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
| | - Luciana Scotti
- Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (A.R.F.); (J.C.d.A.); (N.F.d.S.); (P.B.A.L.); (M.V.S.); (D.P.S.); (M.T.S.); (R.D.d.C.)
- Health Sciences Center, Federal University of Paraíba, Campus I, João Pessoa 58051-900, PB, Brazil
- Institute of Drugs and Medicines Research, Federal University of Paraíba, Via Ipê Amarelo, S/N, João Pessoa 58051-900, PB, Brazil
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40
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Yuan C, Wang Y, Zhang L, Wang D. Procatechuic acid and protocatechuic aldehyde increase survival of Caenorhabditis elegans after fungal infection and inhibit fungal virulence. Front Pharmacol 2024; 15:1396733. [PMID: 38841375 PMCID: PMC11150623 DOI: 10.3389/fphar.2024.1396733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024] Open
Abstract
Protocatechuic acid (PCA) and protocatechuic aldehyde (PAL) are important phenolic compounds in plants. We here investigated their possible beneficial effect against fungal infection and the underlying mechanism. The model animal of Caenorhabditis elegans was used as host, and Candida albicans was used as fungal pathogen. The nematodes were first infected with C. albicans, and the PCA and PAL treatment were then performed. Post-treatment with 10-100 μM PCA and PAL suppressed toxicity of C. albicans infection in reducing lifespan. Accompanied with this beneficial effect, treatment with 10-100 μM PCA and PAL inhibited C. albicans accumulation in intestinal lumen. In addition, treatment with 10-100 μM PCA and PAL suppressed the increase in expressions of antimicrobial genes caused by C. albicans infection. The beneficial effect of PCA and PAL against C. albicans infection depended on p38 MAPK and insulin signals. Moreover, although treatment with 10-100 μM PCA and PAL could not exhibit noticeable antifungal activity, PCA and PAL treatment obviously suppressed biofilm formation, inhibited hyphal growth, and reduced expressions of virulence genes (ALS3, CaVps34, Vma7, Vac1, and/or HWP1) related to biofilm formation and hyphal growth in C. albicans. Therefore, our data demonstrated the potential of PCA and PAL post-treatment against fungal infection and fungal virulence.
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Affiliation(s)
- Chunyan Yuan
- Department of Gynaecology and Obstetrics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Yuxing Wang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
| | - Le Zhang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
| | - Dayong Wang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
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Tan J, Zhang Z, Zheng D, Mu Y, Cao B, Yang J, Han L, Huang X. Structure-activity relationship and biofilm formation-related gene targets of oleanolic acid-type saponins from Pulsatilla chinensis against Candida albicans. Bioorg Chem 2024; 146:107311. [PMID: 38547720 DOI: 10.1016/j.bioorg.2024.107311] [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: 10/12/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/13/2024]
Abstract
In the course of our investigations of antifungal natural products, the structure-activity relationship and antifungal activities of oleanolic acid-type saponins (1-28) from Pulsatilla chinensis against human and plant pathogenic fungi were elucidated. The analysis of structure-activity relationship of oleanolic acid-type saponins showed that the free carboxyl at C-28 was essential for their antifungal activities; the free hydroxyl group at the C-23 site of oleanolic acid-type saponins played a crucial role in their antifungal activities; the oligosaccharide chain at C-3 oleanolic acid-type saponins showed significant effects on antifungal efficacy and a disaccharide or trisaccharide moiety at position C-3 displayed optimal antifungal activity. The typical saponin pulchinenoside B3 (16, PB3) displayed satisfactory antifungal activity against human and plant pathogenic fungi, especially, C. albicans with an MIC value of 12.5 μg/mL. Furthermore, PB3 could inhibit the biofilm formation of C. albicans through downregulating the expression of the integrated network of biofilm formation-associated transcription factors (Bcr1 Efg1, Ndt80, Brg1, Rob1 and Tec1) and adhesion-related target genes (HWP1, ALS1, and ALS3). Meanwhile, we found that PB3 could effectively destroy the mature biofilm of C. albicans by the oxidative damage and inducing mitochondria-mediated apoptosis in cells.
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Affiliation(s)
- Junfeng Tan
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Zengguang Zhang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Dan Zheng
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Yu Mu
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Bixuan Cao
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Junwei Yang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Li Han
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Xueshi Huang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
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Xiong L, Pereira De Sa N, Zarnowski R, Huang MY, Mota Fernandes C, Lanni F, Andes DR, Del Poeta M, Mitchell AP. Biofilm-associated metabolism via ERG251 in Candida albicans. PLoS Pathog 2024; 20:e1012225. [PMID: 38739655 PMCID: PMC11115363 DOI: 10.1371/journal.ppat.1012225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/23/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024] Open
Abstract
Biofilm formation by the fungal pathogen Candida albicans is the basis for its ability to infect medical devices. The metabolic gene ERG251 has been identified as a target of biofilm transcriptional regulator Efg1, and here we report that ERG251 is required for biofilm formation but not conventional free-living planktonic growth. An erg251Δ/Δ mutation impairs biofilm formation in vitro and in an in vivo catheter infection model. In both in vitro and in vivo biofilm contexts, cell number is reduced and hyphal length is limited. To determine whether the mutant defect is in growth or some other aspect of biofilm development, we examined planktonic cell features in a biofilm-like environment, which was approximated with sealed unshaken cultures. Under those conditions, the erg251Δ/Δ mutation causes defects in growth and hyphal extension. Overexpression in the erg251Δ/Δ mutant of the paralog ERG25, which is normally expressed more weakly than ERG251, partially improves biofilm formation and biofilm hyphal content, as well as growth and hyphal extension in a biofilm-like environment. GC-MS analysis shows that the erg251Δ/Δ mutation causes a defect in ergosterol accumulation when cells are cultivated under biofilm-like conditions, but not under conventional planktonic conditions. Overexpression of ERG25 in the erg251Δ/Δ mutant causes some increase in ergosterol levels. Finally, the hypersensitivity of efg1Δ/Δ mutants to the ergosterol inhibitor fluconazole is reversed by ERG251 overexpression, arguing that reduced ERG251 expression contributes to this efg1Δ/Δ phenotype. Our results indicate that ERG251 is required for biofilm formation because its high expression levels are necessary for ergosterol synthesis in a biofilm-like environment.
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Affiliation(s)
- Liping Xiong
- Department of Microbiology, University of Georgia, Athens, Georgia, United States of America
| | - Nivea Pereira De Sa
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
| | - Robert Zarnowski
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Manning Y. Huang
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Caroline Mota Fernandes
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
| | - Frederick Lanni
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - David R. Andes
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Maurizio Del Poeta
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
| | - Aaron P. Mitchell
- Department of Microbiology, University of Georgia, Athens, Georgia, United States of America
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
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Ahmady L, Gothwal M, Mukkoli MM, Bari VK. Antifungal drug resistance in Candida: a special emphasis on amphotericin B. APMIS 2024; 132:291-316. [PMID: 38465406 DOI: 10.1111/apm.13389] [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: 06/16/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024]
Abstract
Invasive fungal infections in humans caused by several Candida species, increased considerably in immunocompromised or critically ill patients, resulting in substantial morbidity and mortality. Candida albicans is the most prevalent species, although the frequency of these organisms varies greatly according to geographic region. Infections with C. albicans and non-albicans Candida species have become more common, especially in the past 20 years, as a result of aging, immunosuppressive medication use, endocrine disorders, malnourishment, extended use of medical equipment, and an increase in immunogenic diseases. Despite C. albicans being the species most frequently associated with human infections, C. glabrata, C. parapsilosis, C. tropicalis, and C. krusei also have been identified. Several antifungal drugs with different modes of action are approved for use in clinical settings to treat fungal infections. However, due to the common eukaryotic structure of humans and fungi, only a limited number of antifungal drugs are available for therapeutic use. Furthermore, drug resistance in Candida species has emerged as a result of the growing use of currently available antifungal drugs against fungal infections. Amphotericin B (AmB), a polyene class of antifungal drugs, is mainly used for the treatment of serious systemic fungal infections. AmB interacts with fungal plasma membrane ergosterol, triggering cellular ion leakage via pore formation, or extracting the ergosterol from the plasma membrane inducing cellular death. AmB resistance is primarily caused by changes in the content or structure of ergosterol. This review summarizes the antifungal drug resistance exhibited by Candida species, with a special focus on AmB.
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Affiliation(s)
- Lailema Ahmady
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | - Manisha Gothwal
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | | | - Vinay Kumar Bari
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
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Mirza Agha M, Tavili E, Dabirmanesh B. Functional amyloids. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 206:389-434. [PMID: 38811086 DOI: 10.1016/bs.pmbts.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
While amyloid has traditionally been viewed as a harmful formation, emerging evidence suggests that amyloids may also play a functional role in cell biology, contributing to normal physiological processes that have been conserved throughout evolution. Functional amyloids have been discovered in several creatures, spanning from bacteria to mammals. These amyloids serve a multitude of purposes, including but not limited to, forming biofilms, melanin synthesis, storage, information transfer, and memory. The functional role of amyloids has been consistently validated by the discovery of more functional amyloids, indicating a conceptual convergence. The biology of amyloids is well-represented by non-pathogenic amyloids, given the numerous ones already identified and the ongoing rate of new discoveries. In this chapter, functional amyloids in microorganisms, animals, and plants are described.
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Affiliation(s)
- Mansoureh Mirza Agha
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Elaheh Tavili
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahareh Dabirmanesh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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Chiramba C, Möller DS, Lorenz CD, Chirombo RR, Mason AJ, Bester MJ, Gaspar ARM. Tryptophan End-Tagging Confers Antifungal Activity on a Tick-Derived Peptide by Triggering Reactive Oxygen Species Production. ACS OMEGA 2024; 9:15556-15572. [PMID: 38585074 PMCID: PMC10993377 DOI: 10.1021/acsomega.4c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/26/2024] [Accepted: 03/07/2024] [Indexed: 04/09/2024]
Abstract
WHO has identified several Candida species including Candida albicans as critical priority fungal pathogens due to greater infection prevalence and formation of recalcitrant biofilms. Novel antifungal agents are urgently needed, and antimicrobial peptides (AMPs) are being considered as potential alternatives, but inactivity in physiological salt environments, serum, and plasma often limits further therapeutic development. Tryptophan end-tagging is a strategy to overcome these limitations and is thought to selectively enhance membrane permeabilization in both fungal and bacterial plasma membranes. Here, we show that C-terminal tryptophan end-tagging of the tick-derived peptide Os-C transforms an inactive peptide into Os-C(W5), an antifungal peptide capable of preventing the formation of C. albicans biofilms. Mechanistic insight is provided by circular dichroism spectroscopy and molecular dynamics simulations, which demonstrate that tryptophan end-tagging alters the secondary structure of Os-C, while the latter reveals that end-tagging reduces interactions with, and insertion into, a model C. albicans membrane but promotes peptide aggregation on its surface. Interestingly, this leads to the induction of reactive oxygen species production rather than membrane permeabilization, and consequently, oxidative stress leads to cell wall damage. Os-C(W5) does not induce the hemolysis of human erythrocytes. Reduced cell adhesion and viability contribute to decreased biofilm extracellular matrix formation which, although reduced, is retained in the serum-containing medium. In this study, tryptophan end-tagging was identified as a promising strategy for enhancing the antifungal activity, including the biofilm inhibitory activity of Os-C against C. albicans in physiological salt environments.
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Affiliation(s)
- Court
K. Chiramba
- Department
of Biochemistry, Genetics and Microbiology, Faculty of Natural and
Agricultural Sciences, University of Pretoria, Pretoria 0002, South Africa
| | - Dalton S. Möller
- Department
of Biochemistry, Genetics and Microbiology, Faculty of Natural and
Agricultural Sciences, University of Pretoria, Pretoria 0002, South Africa
| | | | - Rumbidzai R. Chirombo
- Department
of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria 0002, South Africa
| | - A. James Mason
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, London SE1 9NH, U.K.
| | - Megan J. Bester
- Department
of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria 0002, South Africa
| | - Anabella R. M. Gaspar
- Department
of Biochemistry, Genetics and Microbiology, Faculty of Natural and
Agricultural Sciences, University of Pretoria, Pretoria 0002, South Africa
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Ji Y, Han J, Moses M, Wang D, Wu L, Xue W, Sun L, Xu B, Chen C, Xiang Y, Huang X. The antimicrobial property of JY-1, a complex mixture of Traditional Chinese Medicine, is linked to it abilities to suppress biofilm formation and disrupt membrane permeability. Microb Pathog 2024; 189:106573. [PMID: 38354989 DOI: 10.1016/j.micpath.2024.106573] [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: 11/10/2023] [Revised: 01/30/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
The substantial increase of infections, caused by novel, sudden, and drug-resistant pathogens, poses a significant threat to human health. While numerous studies have demonstrated the antibacterial and antiviral effects of Traditional Chinese Medicine, the potential of a complex mixture of traditional Chinese Medicine with a broad-spectrum antimicrobial property remains underexplored. This study aimed to develop a complex mixture of Traditional Chinese Medicine (TCM), JY-1, and investigate its antimicrobial properties, along with its potential mechanism of action against pathogenic microorganisms. Antimicrobial activity was assessed using a zone of inhibition assay and the drop plate method. Hyphal induction of Candida albicans was conducted using RPMI1640 medium containing 10% FBS, followed by microscopic visualization. Quantitative real-time PCR (RT-qPCR) was employed to quantify the transcript levels of hyphal-specific genes such as HWP1 and ALS3. The impact of JY-1 on biofilm formation was evaluated using both the XTT reduction assay and scanning electron microscopy (SEM). Furthermore, the cell membrane integrity was assessed by protein and nucleic acid leakage assays. Our results clearly showed that JY-1 significantly inhibits the vegetative growth of Candida spp. and Cryptococcus spp. In addition, this complex mixture is effectively against a wide range of pathogenic bacteria, including Staphylococcus aureus, Vancomycin-resistant enterococci, Escherichia coli, Klebsiella pneumoniae and Enterobacter cloacae. More interestingly, JY-1 plays a direct anti-viral role against the mammalian viral pathogen vesicular stomatitis virus (VSV). Further mechanistic studies indicate that JY-1 acts to reduce the expression of hyphal specific genes HWP1 and ALS3, resulting in the suppression of the hyphal formation of C. albicans. The antimicrobial property of JY-1 could be attributed to its ability to reduce biofilm formation and disrupt the cell membrane permeability, a process resulting in microbial cell death and the release of cellular contents. Taken together, our work identified a potent broad-spectrum antimicrobial agent, a complex mixture of TCM which might be developed as a potential antimicrobial drug.
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Affiliation(s)
- Ying Ji
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, 200031, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ji Han
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, No.164 Lanxi Road, Shanghai, 200062, China
| | - Munika Moses
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, 200031, China; University of Chinese Academy of Sciences, Beijing, China
| | - Di Wang
- Laboratory of Microbiology and Parasitology of Guizhou & Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education of Guizhou & Guizhou Talent Base for Microbiology and Human Health, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Lei Wu
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, 200031, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wenwen Xue
- Nanjing Advanced Academy of Life and Health, Nanjing, 211135, China
| | - Lu Sun
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Bo Xu
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, No.164 Lanxi Road, Shanghai, 200062, China
| | - Changbin Chen
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, 200031, China; Nanjing Advanced Academy of Life and Health, Nanjing, 211135, China.
| | - Yanwei Xiang
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China.
| | - Xinhua Huang
- Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, 200031, China.
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Moglad E, Elekhnawy E, Negm WA, Mokhtar FA, Binsuwaidan R, Attallah NGM, Ahmed E, Magdeldin S, Al-Fakhrany OM. Evaluation of Tamarix nilotica Fractions in Combating Candida albicans Infections. Expert Rev Anti Infect Ther 2024; 22:241-251. [PMID: 37387417 DOI: 10.1080/14787210.2023.2232112] [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: 03/10/2023] [Accepted: 06/06/2023] [Indexed: 07/01/2023]
Abstract
OBJECTIVES Evaluation of the antifungal properties of Tamarix nilotica fractions against Candida albicans clinical isolates. METHODS The in vitro antifungal potential was evaluated by agar well diffusion and broth microdilution methods. The antibiofilm potential was assessed by crystal violet, scanning electron microscopy (SEM), and qRT-PCR. The in vivo antifungal activity was evaluated by determining the burden in the lung tissues of infected mice, histopathological, immunohistochemical studies, and ELISA. RESULTS Both the dichloromethane (DCM) and ethyl acetate (EtOAc) fractions had minimum inhibitory concentration (MIC) values of 64-256 and 128-1024 μg/mL, respectively. SEM examination showed that the DCM fraction decreased the biofilm formation capacity of the treated isolates. A significant decline in biofilm gene expression was observed in 33.33% of the DCM-treated isolates. A considerable decline in the CFU/g lung count in infected mice was observed, and histopathological examinations revealed that the DCM fraction maintained the lung tissue architecture. Immunohistochemical investigations indicated that the DCM fraction significantly (p < 0.05) decreased the expression of pro-inflammatory and inflammatory cytokines (TNF-α, NF-kB, COX-2, IL-6, and IL-1β) in the immunostained lung sections. The phytochemical profiling of DCM and EtOAc fractions was performed using Liquid chromatography-mass spectrometry (LC-ESI-MS/MS). CONCLUSION T. nilotica DCM fraction could be a significant source of natural products with antifungal activity against C. albicans infections.
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Affiliation(s)
- Ehssan Moglad
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Engy Elekhnawy
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Walaa A Negm
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Fatma A Mokhtar
- Department of Pharmacognosy, Faculty of Pharmacy, El Saleheya El Gadida University, El Saleheya El Gadida, Egypt
| | - Reem Binsuwaidan
- Department of Pharmaceutical Science, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | - Eman Ahmed
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
- Proteomics and Metabolomics Research Program, Department of Basic Research, Children's Cancer Hospital, Cairo, Egypt
| | - Sameh Magdeldin
- Proteomics and Metabolomics Research Program, Department of Basic Research, Children's Cancer Hospital, Cairo, Egypt
- Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
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Chen Y, Gao Y, Li Y, Yin J. Anti-Biofilm Activity of Assamsaponin A, Theasaponin E1, and Theasaponin E2 against Candida albicans. Int J Mol Sci 2024; 25:3599. [PMID: 38612411 PMCID: PMC11011434 DOI: 10.3390/ijms25073599] [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: 01/31/2024] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Biofilm formation plays a crucial role in the pathogenesis of Candida albicans and is significantly associated with resistance to antifungal agents. Tea seed saponins, a class of non-ionic triterpenes, have been proven to have fungicidal effects on planktonic C. albicans. However, their anti-biofilm activity and mechanism of action against C. albicans remain unclear. In this study, the effects of three Camellia sinensis seed saponin monomers, namely, theasaponin E1 (TE1), theasaponin E2 (TE2), and assamsaponin A (ASA), on the metabolism, biofilm development, and expression of the virulence genes of C. albicans were evaluated. The results of the XTT reduction assay and crystal violet (CV) staining assay demonstrated that tea seed saponin monomers concentration-dependently suppressed the adhesion and biofilm formation of C. albicans and were able to eradicate mature biofilms. The compounds were in the following order in terms of their inhibitory effects: ASA > TE1 > TE2. The mechanisms were associated with reductions in multiple crucial virulence factors, including cell surface hydrophobicity (CSH), adhesion ability, hyphal morphology conversion, and phospholipase activity. It was further demonstrated through qRT-PCR analysis that the anti-biofilm activity of ASA and TE1 against C. albicans was attributed to the inhibition of RAS1 activation, which consequently suppressed the cAMP-PKA and MAPK signaling pathways. Conversely, TE2 appeared to regulate the morphological turnover and hyphal growth of C. albicans via a pathway that was independent of RAS1. These findings suggest that tea seed saponin monomers are promising innovative agents against C. albicans.
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Affiliation(s)
- Yuhong Chen
- Key Laboratory of Tea Biology and Resources Utilization, Tea Research Institute, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China; (Y.C.); (Y.L.)
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Ying Gao
- Key Laboratory of Tea Biology and Resources Utilization, Tea Research Institute, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China; (Y.C.); (Y.L.)
| | - Yifan Li
- Key Laboratory of Tea Biology and Resources Utilization, Tea Research Institute, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China; (Y.C.); (Y.L.)
| | - Junfeng Yin
- Key Laboratory of Tea Biology and Resources Utilization, Tea Research Institute, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China; (Y.C.); (Y.L.)
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Darmani H, Al-Saleh DRH. Oral Rinses: Some Kill and Some Cripple Candida albicans. Med Princ Pract 2024; 33:000538368. [PMID: 38498997 PMCID: PMC11324223 DOI: 10.1159/000538368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/14/2024] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVES Oral healthcare professionals play a crucial role in guiding patients toward evidence-based choices among the many available oral rinses. In this study, we explored how specific oral rinse formulations affect the viability and modulate critical virulence traits of the opportunistic fungal pathogen Candida albicans. MATERIALS AND METHODS We assessed the effects of these oral rinses on the production of germ tube, production of phospholipase and hemolysin, as well as biofilm formation. RESULTS We found that oral rinses containing cetylpyridinium chloride (CPC) and chlorhexidine (CHX) showed the greatest fungicidal activity with the lowest MFCs (0.38% and 0.78%, respectively). Oral rinses based on zinc chloride and sodium fluoride with Miswak bark extract (MIS) or essential oils (EO) had much lower fungicidal activity (8-16 times lower) compared to CHX and CPC. However, they had a significantly greater impact on the virulence traits of C. albicans. They reduced germ tube production by 86% - 89% (versus 42% for CHX and 29% for CPC), completely inhibited phospholipase and hemolysin production, and together with the CPC-based oral rinse, exerted the greatest reductions in biofilm formation across all tested concentrations. This was in contrast to both the controls and CHX, which had a minimal effect on biofilm formation. CONCLUSION By inhibiting the virulence factors the oral rinse can have a crippling effect on C. albicans, weakening this opportunistic pathogen and hindering its potential to cause infection.
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Dühring S, Schuster S. Studying mixed-species biofilms of Candida albicans and Staphylococcus aureus using evolutionary game theory. PLoS One 2024; 19:e0297307. [PMID: 38446770 PMCID: PMC10917284 DOI: 10.1371/journal.pone.0297307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/03/2024] [Indexed: 03/08/2024] Open
Abstract
Mixed-species biofilms of Candida albicans and Staphylococcus aureus pose a significant clinical challenge due to their resistance to the human immune system and antimicrobial therapy. Using evolutionary game theory and nonlinear dynamics, we analyse the complex interactions between these organisms to understand their coexistence in the human host. We determine the Nash equilibria and evolutionary stable strategies of the game between C. albicans and S. aureus and point out different states of the mixed-species biofilm. Using replicator equations we study the fungal-bacterial interactions on a population level. Our focus is on the influence of available nutrients and the quorum sensing molecule farnesol, including the potential therapeutic use of artificially added farnesol. We also investigate the impact of the suggested scavenging of C. albicans hyphae by S. aureus. Contrary to common assumptions, we confirm the hypothesis that under certain conditions, mixed-species biofilms are not universally beneficial. Instead, different Nash equilibria occur depending on encountered conditions (i.e. varying farnesol levels, either produced by C. albicans or artificially added), including antagonism. We further show that the suggested scavenging of C. albicans' hyphae by S. aureus does not influence the overall outcome of the game. Moreover, artificially added farnesol strongly affects the dynamics of the game, although its use as a medical adjuvant (add-on medication) may pose challenges.
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Affiliation(s)
- Sybille Dühring
- Department of Bioinformatics, Friedrich-Schiller-University Jena, Jena, Germany
| | - Stefan Schuster
- Department of Bioinformatics, Friedrich-Schiller-University Jena, Jena, Germany
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