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Nilkhet S, Vongthip W, Lertpatipanpong P, Prasansuklab A, Tencomnao T, Chuchawankul S, Baek SJ. Ergosterol inhibits the proliferation of breast cancer cells by suppressing AKT/GSK-3beta/beta-catenin pathway. Sci Rep 2024; 14:19664. [PMID: 39179606 PMCID: PMC11344128 DOI: 10.1038/s41598-024-70516-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 08/19/2024] [Indexed: 08/26/2024] Open
Abstract
Breast cancer is a prevalent malignancy affecting women globally, necessitating effective treatment strategies. This study explores the potential of ergosterol, a bioactive compound found in edible mushrooms, as a candidate for breast cancer treatment. Breast cancer cell lines (MCF-7 and MDA-MB-231) were treated with ergosterol, revealing its ability to inhibit cell viability, induce cell cycle arrest, and suppress spheroid formation. Mechanistically, ergosterol demonstrated significant inhibitory effects on the Wnt/beta-catenin signaling pathway, a critical regulator of cancer progression, by attenuating beta-catenin translocation in the nucleus. This suppression was attributed to the inhibition of AKT/GSK-3beta phosphorylation, leading to decreased beta-catenin stability and activity. Additionally, ergosterol treatment impacted protein synthesis and ubiquitination, potentially contributing to its anti-cancer effects. Moreover, the study revealed alterations in metabolic pathways upon ergosterol treatment, indicating its influence on metabolic processes critical for cancer development. This research sheds light on the multifaceted mechanisms through which ergosterol exerts anti-tumor effects, mainly focusing on Wnt/beta-catenin pathway modulation and metabolic pathway disruption. These findings provide valuable insights into the potential of ergosterol as a therapeutic candidate for breast cancer treatment, warranting further investigation and clinical application.
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Affiliation(s)
- Sunita Nilkhet
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Laboratory of Signal Transduction, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Korea
| | - Wudtipong Vongthip
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Laboratory of Signal Transduction, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Korea
| | - Pattawika Lertpatipanpong
- Laboratory of Signal Transduction, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Korea
| | - Anchalee Prasansuklab
- College of Public Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tewin Tencomnao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siriporn Chuchawankul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
- Immunomodulation of Natural Products Research Unit, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Seung Joon Baek
- Laboratory of Signal Transduction, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Korea.
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Navegantes Lima KC, Gaspar SLDF, Oliveira ALDB, dos Santos SM, Quadros LBG, de Oliveira JP, Pereira RCDS, Dias AGDS, Gato LDS, Alencar LYN, dos Santos ALP, Dorneles GP, Romão PRT, Stutz H, Sovrani V, Monteiro MC. Lipid Fraction from Agaricus brasiliensis as a Potential Therapeutic Agent for Lethal Sepsis in Mice. Antioxidants (Basel) 2024; 13:927. [PMID: 39199173 PMCID: PMC11351130 DOI: 10.3390/antiox13080927] [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: 06/22/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 09/01/2024] Open
Abstract
Sepsis is a potentially fatal clinical condition that results from an immune imbalance in the host during an infection. It presents systemic alterations due to excessive activation of pro-inflammatory mediators that contribute to inflammation, formation of reactive species, and tissue damage. Anti-inflammatory mediators are then extensively activated to regulate this process, leading to immune exhaustion and, consequently, immunosuppression of the host. Considering the biological activities of the nutraceutical Agaricus brasiliensis (A. brasiliensis), such as immunomodulatory, antioxidant, and antitumor activities, the present study investigated the therapeutic potential of the lipid fraction of A. brasiliensis (LF) in a model of lethal sepsis in mice (Mus musculus), induced by cecal ligation and perforation (CLP). The results showed that treatment of septic animals with LF or LF associated with ertapenem (LF-Erta) reduced systemic inflammation, promoting improvement in clinical parameters and increased survival. The data show a reduction in pro-inflammatory and oxidative stress markers, regulation of the anti-inflammatory response and oxidizing agents, and increased bacterial clearance in the peritoneal cavity and liver. Thus, it can be concluded that LF as a treatment, and in conjunction with antibiotic therapy, has shown promising effects as a hepatoprotective, antioxidant, antimicrobial, and immunomodulatory agent.
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Affiliation(s)
- Kely Campos Navegantes Lima
- Neuroscience and Cellular Biology Post Graduation Program, Institute of Biological Sciences, Federal University of Pará, Pará 66075-110, Brazil; (K.C.N.L.); (A.L.d.B.O.)
| | - Silvia Leticia de França Gaspar
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Ana Ligia de Brito Oliveira
- Neuroscience and Cellular Biology Post Graduation Program, Institute of Biological Sciences, Federal University of Pará, Pará 66075-110, Brazil; (K.C.N.L.); (A.L.d.B.O.)
| | - Sávio Monteiro dos Santos
- Pharmaceutical Science Post-Graduation Program, Faculty of Pharmacy, Federal University of Pará, Belém 66075-110, Brazil;
| | - Lucas Benedito Gonçalves Quadros
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Juliana Pinheiro de Oliveira
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Rayane Caroline dos Santos Pereira
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Alexandre Guilherme da Silva Dias
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Lucas da Silva Gato
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | | | - Alanna Lorena Pimentel dos Santos
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
| | - Gilson Pires Dorneles
- Laboratory of Cellular and Molecular Immunology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre 90050-170, Brazil; (G.P.D.); (P.R.T.R.)
| | - Pedro Roosevelt Torres Romão
- Laboratory of Cellular and Molecular Immunology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre 90050-170, Brazil; (G.P.D.); (P.R.T.R.)
| | - Herta Stutz
- Department of Food Engineering, Midwest State University-UNICENTRO, Simeao de Camargo Varela de Sá, 03, Guarapuava 85.040-080, Brazil; (H.S.); (V.S.)
| | - Vanessa Sovrani
- Department of Food Engineering, Midwest State University-UNICENTRO, Simeao de Camargo Varela de Sá, 03, Guarapuava 85.040-080, Brazil; (H.S.); (V.S.)
| | - Marta Chagas Monteiro
- Neuroscience and Cellular Biology Post Graduation Program, Institute of Biological Sciences, Federal University of Pará, Pará 66075-110, Brazil; (K.C.N.L.); (A.L.d.B.O.)
- School of Pharmacy, Health Science Institute, Federal University of Pará, Belém 66075-110, Brazil; (S.L.d.F.G.); (L.B.G.Q.); (J.P.d.O.); (R.C.d.S.P.); (A.G.d.S.D.); (L.d.S.G.); (A.L.P.d.S.)
- Pharmaceutical Science Post-Graduation Program, Faculty of Pharmacy, Federal University of Pará, Belém 66075-110, Brazil;
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Wang Y, Guo Y, Dong P, Lin K, Du P, Cao J, Cheng Y, Cheng F, Yun S, Feng C. Water-in-oil Pickering emulsion using ergosterol as an emulsifier solely. Food Res Int 2024; 186:114374. [PMID: 38729731 DOI: 10.1016/j.foodres.2024.114374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/08/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
As a crucial component of the fungal cell membranes, ergosterol has been demonstrated to possess surface activity attributed to its hydrophobic region and polar group. However, further investigation is required to explore its emulsification behavior upon migration to the oil-water interface. Therefore, this study was conducted to analyze the interface properties of ergosterol as a stabilizer for water in oil (W/O) emulsion. Moreover, the emulsion prepared under the optimal conditions was utilized to load the water-soluble bioactive substance with the chlorogenic acid as the model molecules. Our results showed that the contact angle of ergosterol was 117.017°, and its dynamic interfacial tension was obviously lower than that of a pure water-oil system. When the ratio of water to oil was 4: 6, and the content of ergosterol was 3.5 % (ergosterol/oil phase, w/w), the W/O emulsion had smaller particle size (438 nm), higher apparent viscosity, and better stability. Meanwhile, the stability of loaded chlorogenic acid was improved under unfavorable conditions (pH 1.2, 90 °C, ultraviolet irradiation, and oxidation), which were 73.87 %, 59.53 %, 62.53 %, and 69.73 %, respectively. Additionally, the bioaccessibility of chlorogenic acid (38.75 %) and ergosterol (33.69 %), and the scavenging rates of the emulsion on DPPH radicals (81.00 %) and hydroxyl radicals (82.30 %) were also enhanced. Therefore, a novel W/O Pickering emulsion was prepared in this work using ergosterol as an emulsifier solely, which has great potential for application in oil-based food and nutraceutical formulations.
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Affiliation(s)
- Yaxin Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Yuanhao Guo
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Pengfei Dong
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Kai Lin
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Pengya Du
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Jinling Cao
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Yanfen Cheng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Feier Cheng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Shaojun Yun
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China.
| | - Cuiping Feng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China.
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El Omari N, Bakrim S, Khalid A, Abdalla AN, Iesa MAM, El Kadri K, Tang SY, Goh BH, Bouyahya A. Unveiling the molecular mechanisms: dietary phytosterols as guardians against cardiovascular diseases. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:27. [PMID: 38722432 PMCID: PMC11082103 DOI: 10.1007/s13659-024-00451-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 04/22/2024] [Indexed: 05/12/2024]
Abstract
Until recently, the main pharmaceuticals used to control cholesterol and prevent cardiovascular disease (CVD) were statin-related drugs, known for their historical side effects. Therefore, there is growing interest in exploring alternatives, such as nutritional and dietary components, that could play a central role in CVD prevention. This review aims to provide a comprehensive understanding of how natural phytosterols found in various diets combat CVDs. We begin with a description of the overall approach, then we explore in detail the different direct and indirect mechanisms that contribute to reducing cardiovascular incidents. Phytosterols, including stigmasterol, β-sitosterol, ergosterol, and fucosterol, emerge as promising molecules within nutritional systems for protection against CVDs due to their beneficial effects at different levels through direct or indirect cellular, subcellular, and molecular mechanisms. Specifically, the mentioned phytosterols exhibit the ability to diminish the generation of various radicals, including hydroperoxides and hydrogen peroxide. They also promote the activation of antioxidant enzymes such as superoxide dismutase, catalase, and glutathione, while inhibiting lipid peroxidation through the activation of Nrf2 and Nrf2/heme oxygenase-1 (HO-1) signaling pathways. Additionally, they demonstrate a significant inhibitory capacity in the generation of pro-inflammatory cytokines, thus playing a crucial role in regulating the inflammatory/immune response by inhibiting the expression of proteins involved in cellular signaling pathways such as JAK3/STAT3 and NF-κB. Moreover, phytosterols play a key role in reducing cholesterol absorption and improving the lipid profile. These compounds can be used as dietary supplements or included in specific diets to aid control cholesterol levels, particularly in individuals suffering from hypercholesterolemia.
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Affiliation(s)
- Nasreddine El Omari
- High Institute of Nursing Professions and Health Techniques of Tetouan, Tetouan, Morocco
| | - Saad Bakrim
- Geo-Bio-Environment Engineering and Innovation Laboratory, Molecular Engineering, Biotechnology and Innovation Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, 80000, Agadir, Morocco
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, 45142, Jazan, Saudi Arabia.
- Medicinal and Aromatic Plants and Traditional Medicine Research Institute, National Center for Research, P. O. Box 2404, Khartoum, Sudan.
| | - Ashraf N Abdalla
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Mohamed A M Iesa
- Department of Physiology, Al Qunfudah Medical College, Umm Al Qura University, Mecca, Saudi Arabia
| | - Kawtar El Kadri
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, 10106, Rabat, Morocco
| | - Siah Ying Tang
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, 47500, Bandar Sunway, Malaysia.
- Sunway Biofunctional Molecules Discovery Centre (SBMDC), School of Medical and Life Sciences, Sunway University, 47500, Sunway City, Malaysia.
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia.
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, 10106, Rabat, Morocco.
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Huang X, Fan J, Guo C, Chen Y, Qiu J, Zhang Q. Integrated Transcriptomics and Metabolomics Analysis Reveal the Regulatory Mechanisms Underlying Sodium Butyrate-Induced Carotenoid Biosynthesis in Rhodotorula glutinis. J Fungi (Basel) 2024; 10:320. [PMID: 38786675 PMCID: PMC11122558 DOI: 10.3390/jof10050320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Sodium butyrate (SB) is a histone deacetylase inhibitor that can induce changes in gene expression and secondary metabolite titers by inhibiting histone deacetylation. Our preliminary analysis also indicated that SB significantly enhanced the biosynthesis of carotenoids in the Rhodotorula glutinis strain YM25079, although the underlying regulatory mechanisms remained unclear. Based on an integrated analysis of transcriptomics and metabolomics, this study revealed changes in cell membrane stability, DNA and protein methylation levels, amino acid metabolism, and oxidative stress in the strain YM25079 under SB exposure. Among them, the upregulation of oxidative stress may be a contributing factor for the increase in carotenoid biosynthesis, subsequently enhancing the strain resistance to oxidative stress and maintaining the membrane fluidity and function for normal cell growth. To summarize, our results showed that SB promoted carotenoid synthesis in the Rhodotorula glutinis strain YM25079 and increased the levels of the key metabolites and regulators involved in the stress response of yeast cells. Additionally, epigenetic modifiers were applied to produce fungal carotenoid, providing a novel and promising strategy for the biosynthesis of yeast-based carotenoids.
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Affiliation(s)
| | | | | | | | - Jingwen Qiu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (X.H.); (J.F.); (C.G.); (Y.C.)
| | - Qi Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (X.H.); (J.F.); (C.G.); (Y.C.)
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Zhan Z, Chen X, Ye Z, Zhao M, Li C, Gao S, Sinskey AJ, Yao L, Dai J, Jiang Y, Zheng X. Expanding the CRISPR Toolbox for Engineering Lycopene Biosynthesis in Corynebacterium glutamicum. Microorganisms 2024; 12:803. [PMID: 38674747 PMCID: PMC11052027 DOI: 10.3390/microorganisms12040803] [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: 03/18/2024] [Revised: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Lycopene represents one of the central compounds in the carotenoid pathway and it exhibits a potent antioxidant ability with wide potential applications in medicine, food, and cosmetics. The microbial production of lycopene has received increasing concern in recent years. Corynebacterium glutamicum (C. glutamicum) is considered to be a safe and beneficial industrial production platform, naturally endowed with the ability to produce lycopene. However, the scarcity of efficient genetic tools and the challenge of identifying crucial metabolic genes impede further research on C. glutamicum for achieving high-yield lycopene production. To address these challenges, a novel genetic editing toolkit, CRISPR/MAD7 system, was established and developed. By optimizing the promoter, ORI and PAM sequences, the CRISPR/MAD7 system facilitated highly efficient gene deletion and exhibited a broad spectrum of PAM sites. Notably, 25 kb of DNA from the genome was successfully deleted. In addition, the CRISPR/MAD7 system was effectively utilized in the metabolic engineering of C. glutamicum, allowing for the simultaneous knockout of crtEb and crtR genes in one step to enhance the accumulation of lycopene by blocking the branching pathway. Through screening crucial genes such as crtE, crtB, crtI, idsA, idi, and cg0722, an optimal carotenogenic gene combination was obtained. Particularly, cg0722, a membrane protein gene, was found to play a vital role in lycopene production. Therefore, the CBIEbR strain was obtained by overexpressing cg0722, crtB, and crtI while strategically blocking the by-products of the lycopene pathway. As a result, the final engineered strain produced lycopene at 405.02 mg/L (9.52 mg/g dry cell weight, DCW) in fed-batch fermentation, representing the highest reported lycopene yield in C. glutamicum to date. In this study, a powerful and precise genetic tool was used to engineer C. glutamicum for lycopene production. Through the modifications between the host cell and the carotenogenic pathway, the lycopene yield was stepwise improved by 102-fold as compared to the starting strain. This study highlights the usefulness of the CRISPR/MAD7 toolbox, demonstrating its practical applications in the metabolic engineering of industrially robust C. glutamicum.
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Affiliation(s)
- Zhimin Zhan
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Xiong Chen
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Zhifang Ye
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Ming Zhao
- Department of Pharmaceutical Chemistry, School of Pharmacy, The University of Kansas, Lawrence, KS 66047, USA;
| | - Cheng Li
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; (C.L.); (A.J.S.)
| | - Shipeng Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
| | - Anthony J. Sinskey
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; (C.L.); (A.J.S.)
| | - Lan Yao
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Jun Dai
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Yiming Jiang
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
| | - Xueyun Zheng
- Key Laboratory of Fermentation Engineering (Ministry of Education), National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, China; (Z.Z.); (X.C.); (Z.Y.); (L.Y.); (J.D.); (Y.J.)
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Torello Pianale L, Caputo F, Olsson L. Four ways of implementing robustness quantification in strain characterisation. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:195. [PMID: 38115067 PMCID: PMC10729505 DOI: 10.1186/s13068-023-02445-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND In industrial bioprocesses, microorganisms are generally selected based on performance, whereas robustness, i.e., the ability of a system to maintain a stable performance, has been overlooked due to the challenges in its quantification and implementation into routine experimental procedures. This work presents four ways of implementing robustness quantification during strain characterisation. One Saccharomyces cerevisiae laboratory strain (CEN.PK113-7D) and two industrial strains (Ethanol Red and PE2) grown in seven different lignocellulosic hydrolysates were assessed for growth-related functions (specific growth rate, product yields, etc.) and eight intracellular parameters (using fluorescent biosensors). RESULTS Using flasks and high-throughput experimental setups, robustness was quantified in relation to: (i) stability of growth functions in response to the seven hydrolysates; (ii) stability of growth functions across different strains to establish the impact of perturbations on yeast metabolism; (iii) stability of intracellular parameters over time; (iv) stability of intracellular parameters within a cell population to indirectly quantify population heterogeneity. Ethanol Red was the best-performing strain under all tested conditions, achieving the highest growth function robustness. PE2 displayed the highest population heterogeneity. Moreover, the intracellular environment varied in response to non-woody or woody lignocellulosic hydrolysates, manifesting increased oxidative stress and unfolded protein response, respectively. CONCLUSIONS Robustness quantification is a powerful tool for strain characterisation as it offers novel information on physiological and biochemical parameters. Owing to the flexibility of the robustness quantification method, its implementation was successfully validated at single-cell as well as high-throughput levels, showcasing its versatility and potential for several applications.
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Affiliation(s)
- Luca Torello Pianale
- Industrial Biotechnology Division, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Fabio Caputo
- Industrial Biotechnology Division, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Lisbeth Olsson
- Industrial Biotechnology Division, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden.
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8
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Stepanov AA, Vasilchenko AV, Vasilchenko AS. Subinhibitory effects of 2,4-diacetylphloroglucinol on filamentous fungus Aspergillus fumigatus. J Appl Microbiol 2023; 134:lxad294. [PMID: 38086610 DOI: 10.1093/jambio/lxad294] [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: 07/29/2023] [Revised: 11/02/2023] [Accepted: 12/01/2023] [Indexed: 12/20/2023]
Abstract
AIMS Aspergillus fungi are common members of the soil microbiota. Some physiological and structural characteristics of Aspergillus species make them important participants in soil ecological processes. In this study, we aimed to evaluate the impact of 2,4-diacetylphloroglucinol (2,4-DAPG), a common metabolite of soil and rhizosphere bacteria, on the physiology of Aspergillus fumigatus. METHODS AND RESULTS Integrated analysis using microscopy, spectrophotometry, and liquid chromatography showed the following effects of 2,4-DAPG on Aspergillus physiology. It was found that A. fumigatus in the biofilm state is resistant to high concentrations of 2,4-DAPG. However, experimental exposure led to a depletion of the extracellular polymeric substance, changes in the structure of the cell wall of the mycelium (increase in the content of α- and β-glucans, chitin, and ergosterol), and conidia (decrease in the content of DHN-melanin). 2,4-DAPG significantly reduced the production of mycotoxins (gliotoxin and fumagillin) but increased the secretion of proteases and galactosaminogalactan. CONCLUSIONS Overall, the data obtained suggest that 2,4-DAPG-producing Pseudomonas bacteria are unlikely to directly eliminate A. fumigatus fungi, as they exhibit a high level of resistance when in the biofilm state. However, at low concentrations, 2,4-DAPG significantly alters the physiology of aspergilli, potentially reducing the adaptive and competitive capabilities of these fungi.
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Affiliation(s)
- Artyom A Stepanov
- Laboratory of antimicrobial resistance, Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
| | - Anastasia V Vasilchenko
- Laboratory of antimicrobial resistance, Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
- Laboratory of Biochemistry and Ecology of Microorganisms, All-Russian Institute of Plant Protection, Pushkin 196608, Russia
| | - Alexey S Vasilchenko
- Laboratory of antimicrobial resistance, Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
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9
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Sęk W, Kot AM, Rapoport A, Kieliszek M. Physiological and genetic regulation of anhydrobiosis in yeast cells. Arch Microbiol 2023; 205:348. [PMID: 37782422 PMCID: PMC10545650 DOI: 10.1007/s00203-023-03683-w] [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: 08/03/2023] [Revised: 08/28/2023] [Accepted: 09/10/2023] [Indexed: 10/03/2023]
Abstract
Anhydrobiosis is a state of living organisms during which their metabolism is reversibly delayed or suspended due to a high degree of dehydration. Yeast cells, which are widely used in the food industry, may be induced into this state. The degree of viability of yeast cells undergoing the drying process also depends on rehydration. In an attempt to explain the essence of the state of anhydrobiosis and clarify the mechanisms responsible for its course, scientists have described various cellular compounds and structures that are responsible for it. The structures discussed in this work include the cell wall and plasma membrane, vacuoles, mitochondria, and lysosomes, among others, while the most important compounds include trehalose, glycogen, glutathione, and lipid droplets. Various proteins (Stf2p; Sip18p; Hsp12p and Hsp70p) and genes (STF2; Nsip18; TRX2; TPS1 and TPS2) are also responsible for the process of anhydrobiosis. Each factor has a specific function and is irreplaceable, detailed information is presented in this overview.
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Affiliation(s)
- Wioletta Sęk
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska 159C, 02-776, Warsaw, Poland
| | - Anna M Kot
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska 159C, 02-776, Warsaw, Poland.
| | - Alexander Rapoport
- Laboratory of Cell Biology, Institute of Microbiology and Biotechnology, University of Latvia, Jelgavas Str., 1, Riga, 1004, Latvia
| | - Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska 159C, 02-776, Warsaw, Poland.
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10
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Hu D, Long X, Luobu T, Wang Q. Current status of research on endophytes of traditional Tibetan medicinal plant and their metabolites. 3 Biotech 2023; 13:338. [PMID: 37705864 PMCID: PMC10495306 DOI: 10.1007/s13205-023-03720-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/29/2023] [Indexed: 09/15/2023] Open
Abstract
The Qinghai-Tibet Plateau, known as the "Third Pole of the World," has a rich variety of medicinal plants that play an important role in the field of medicine due to its unique geographical environment. However, due to the limited resources of Tibetan medicinal plants and the fragility of the ecological environment of the Qinghai-Tibet Plateau, more and more Tibetan medicinal plants are on the verge of extinction. As a reservoir of biologically active metabolites, endophytes of medicinal plants produce a large number of compounds with potential applications in modern medicine (including antibacterial, immunosuppressive, antiviral, and anticancer) and are expected to be substitutes for Tibetan medicinal plants. This paper reviews 12 Tibetan medicinal plants from the Qinghai-Tibet Plateau, highlighting the diversity of their endophytes, the diversity of their metabolites and their applications. The results show that the endophytes of Tibetan medicinal plants are remarkably diverse, and the efficacy of their metabolites involves various aspects, such as antioxidant, anti-disease and anti-parasitic. In addition, conservation measures for the resources of Tibetan medicinal plants are summarised to provide a reference for an in-depth understanding of the endophytes of Tibetan medicinal plants and to stimulate the scientific community to bioprospect for the endophytes of Tibetan medicinal plants, as well as to provide ideas for their rational exploitation.
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Affiliation(s)
- Danni Hu
- Wuhan University of Technology, Wuhan, China
| | | | - Tudan Luobu
- Pharmacy Department, Tibetan Hospital of Gongga County, Shannan, China
| | - Qi Wang
- Wuhan University of Technology, Wuhan, China
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11
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Teixeira FS, Costa PT, Soares AMS, Fontes AL, Pintado ME, Vidigal SSMP, Pimentel LL, Rodríguez-Alcalá LM. Novel Lipids to Regulate Obesity and Brain Function: Comparing Available Evidence and Insights from QSAR In Silico Models. Foods 2023; 12:2576. [PMID: 37444314 DOI: 10.3390/foods12132576] [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: 05/05/2023] [Revised: 06/09/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Lipid molecules, such as policosanol, ergosterol, sphingomyelin, omega 3 rich phosphatidylcholine, α-tocopherol, and sodium butyrate, have emerged as novel additions to the portfolio of bioactive lipids. In this state-of-the-art review, we discuss these lipids, and their activity against obesity and mental or neurological disorders, with a focus on their proposed cellular targets and the ways in which they produce their beneficial effects. Furthermore, this available information is compared with that provided by in silico Absorption, Distribution, Metabolism, Excretion, and Toxicity (ADMET) models in order to understand the usefulness of these tools for the discovery of new bioactive compounds. Accordingly, it was possible to highlight how these lipids interact with various cellular targets related to the molecule transportation and absorption (e.g., α-tocopherol transfer protein for α-Tocopherol, ATP-binding cassette ABC transporters or Apolipoprotein E for sphingomyelins and phospholipids) or other processes, such as the regulation of gene expression (involving Sterol Regulatory Element-Binding Proteins for ergosterol or Peroxisome Proliferator-Activated Receptors in the case of policosanol) and inflammation (the regulation of interleukins by sodium butyrate). When comparing the literature with in silico Quantitative Structure-Activity Relationship (QSAR) models, it was observed that although they are useful for selecting bioactive molecules when compared in batch, the information they provide does not coincide when assessed individually. Our review highlights the importance of considering a broad range of lipids as potential bioactives and the need for accurate prediction of ADMET parameters in the discovery of new biomolecules. The information presented here provides a useful resource for researchers interested in developing new strategies for the treatment of obesity and mental or neurological disorders.
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Affiliation(s)
- Francisca S Teixeira
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Paula T Costa
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Ana M S Soares
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Ana Luiza Fontes
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Manuela E Pintado
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Susana S M P Vidigal
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Lígia L Pimentel
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Luís M Rodríguez-Alcalá
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
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12
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Rangsinth P, Sharika R, Pattarachotanant N, Duangjan C, Wongwan C, Sillapachaiyaporn C, Nilkhet S, Wongsirojkul N, Prasansuklab A, Tencomnao T, Leung GPH, Chuchawankul S. Potential Beneficial Effects and Pharmacological Properties of Ergosterol, a Common Bioactive Compound in Edible Mushrooms. Foods 2023; 12:2529. [PMID: 37444267 DOI: 10.3390/foods12132529] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Ergosterol is an important sterol commonly found in edible mushrooms, and it has important nutritional value and pharmacological activity. Ergosterol is a provitamin. It has been well established that edible mushrooms are an excellent food source of vitamin D2 because ergosterol is a precursor that is converted to vitamin D2 under ultraviolet radiation. The pharmacological effects of ergosterol, which include antimicrobial, antioxidant, antimicrobial, anticancer, antidiabetic, anti-neurodegenerative, and other activities, have also been reported. This review aims to provide an overview of the available evidence regarding the pharmacological effects of ergosterol and its underlying mechanisms of action. Their potential benefits and applications are also discussed.
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Affiliation(s)
- Panthakarn Rangsinth
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Rajasekharan Sharika
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nattaporn Pattarachotanant
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chatrawee Duangjan
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Chamaiphron Wongwan
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chanin Sillapachaiyaporn
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sunita Nilkhet
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nichaporn Wongsirojkul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Anchalee Prasansuklab
- College of Public Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tewin Tencomnao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - George Pak-Heng Leung
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Siriporn Chuchawankul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Immunomodulation of Natural Products Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
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13
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Liu M, Niu Q, Wang Z, Qi H, Liang X, Gai Y, Wang B, Yin S. Comparative physiological and transcriptome analysis provide insights into the inhibitory effect of 6-pentyl-2H-pyran-2-one on Clarireedia jacksonii. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 193:105456. [PMID: 37248022 DOI: 10.1016/j.pestbp.2023.105456] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/29/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023]
Abstract
Clarireedia spp. is a destructive phytopathogenic fungus that causes turf dollar spot of bent-grass, leading to widespread lawn death. In this study, we explored the antifungal capability of 6-pentyl-2H-pyran-2-one (6PP), a natural metabolite volatilized by microorganisms, which plays an important role in the biological control of turfgrass dollar spot. However, the mechanisms by which 6PP inhibits Clarireedia jacksonii remain unknown. In the present study, C. jacksonii mycelial growth was inhibited by the 6PP treatment and the 6PP treatment damaged cell membrane integrity, causing an increase in relative conduc-tivity. Furthermore, physiological and biochemistry assay showed that 6PP treatment can enhance reactive oxygen species (ROS) levels, malondialdehyde (MDA) content obviously increased with 6PP exposure, increased alchohol dehydrogenase (ADH) and depleted acetalde-hyde dehydrogenase (ALDH), and activated the activities of many antioxidant enzymes in C. jacksonii. Gen Ontology and Kyoto Encyclopedia of Genes and Genomes analysis revealed that some genes in C. jacksonii after 6PP treatment related to integrity of the cell wall and membrane, and oxidative stress were significantly downregulated. It is worth mentioning that the fatty acid degradation pathway is significantly upregulated, with an increase in ATP content and ATP synthase activity, which may promote fungal cell apoptosis. Moreover, we found that the expression of ABC transporters, and glutathione metabolism encoding genes were increased to respond to external stimuli. Taken together, these findings revealed the potential antifungal mechanism of 6PP against Clarireedia spp., which also provides a theoretical basis for the commercial utilization of 6PP as a green pesticide in the future.
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Affiliation(s)
- Man Liu
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Qichen Niu
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Ziyue Wang
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Hongyin Qi
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Xingxing Liang
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Yunpeng Gai
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
| | - Baisen Wang
- School of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China.
| | - Shuxia Yin
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
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14
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Elias D, Tóth Hervay N, Bujdos M, Gbelska Y. Essential Role of CgErg6p in Maintaining Oxidative Stress Tolerance and Iron Homeostasis in Candida glabrata. J Fungi (Basel) 2023; 9:jof9050579. [PMID: 37233290 DOI: 10.3390/jof9050579] [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: 04/24/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
The human pathogenic fungus Candida glabrata is the second leading cause of candidemia, a life-threatening invasive mycosis. Clinical outcomes are complicated by reduced susceptibility of C. glabrata to azoles together with its ability to evolve stable resistance to both azoles and echinocandins following drug exposure. Compared to other Candida spp., C. glabrata displays robust oxidative stress resistance. In this study, we investigated the impact of CgERG6 gene deletion on the oxidative stress response in C. glabrata. CgERG6 gene encodes sterol-24-C-methyltransferase, which is involved in the final steps of ergosterol biosynthesis. Our previous results showed that the Cgerg6Δ mutant has a lower ergosterol content in its membranes. Here, we show that the Cgerg6Δ mutant displays increased susceptibility to oxidative stress inducing agents, such as menadione, hydrogen peroxide and diamide, accompanied with increased intracellular ROS production. The Cgerg6Δ mutant is not able to tolerate higher concentrations of iron in the growth media. We observed increased expression of transcription factors, CgYap1p, CgMsn4p and CgYap5p, together with increased expression of catalase encoding the CgCTA1 gene and vacuolar iron transporter CgCCC1 in the Cgerg6Δ mutant cells. However, it seems that the CgERG6 gene deletion does not influence the function of mitochondria.
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Affiliation(s)
- Daniel Elias
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Nora Tóth Hervay
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Marek Bujdos
- Faculty of Natural Sciences, Institute of Laboratory Research on Geomaterials, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Yvetta Gbelska
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
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15
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Ragon M, Bertheau L, Dumont J, Bellanger T, Grosselin M, Basu M, Pourcelot E, Horrigue W, Denimal E, Marin A, Vaucher B, Berland A, Lepoivre C, Dupont S, Beney L, Davey H, Guyot S. The Yin-Yang of the Green Fluorescent Protein: Impact on Saccharomyces cerevisiae stress resistance. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112603. [PMID: 36459911 DOI: 10.1016/j.jphotobiol.2022.112603] [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: 07/25/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
Although fluorescent proteins are widely used as biomarkers (Yin), no study focuses on their influence on the microbial stress response. Here, the Green Fluorescent Protein (GFP) was fused to two proteins of interest in Saccharomyces cerevisiae. Pab1p and Sur7p, respectively involved in stress granules structure and in Can1 membrane domains. These were chosen since questions remain regarding the understanding of the behavior of S. cerevisiae facing different heat kinetics or oxidative stresses. The main results showed that Pab1p-GFP fluorescent mutant displayed a higher resistance than that of the wild type under a heat shock. Moreover, fluorescent mutants exposed to oxidative stresses displayed changes in the cultivability compared to the wild type strain. In silico approaches showed that the presence of the GFP did not influence the structure and so the functionality of the tagged proteins meaning that changes in yeast resistance were certainly related to GFP ROS-scavenging ability (Yang).
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Affiliation(s)
- Mélanie Ragon
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Lucie Bertheau
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Jennifer Dumont
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Tiffany Bellanger
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Marie Grosselin
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Mohini Basu
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Eléonore Pourcelot
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Walid Horrigue
- UMR Agroécologie Équipe Biocom, INRAE Dijon, Institut Agro, 26 Bd Dr Petitjean, 21000 Dijon, France
| | - Emmanuel Denimal
- Institut Agro Dijon, Direction Scientifique, Appui à la Recherche, 26 Bd Dr Petitjean, 21000 Dijon, France
| | - Ambroise Marin
- Plateau Technique d'IMagerie Spectroscopique (PIMS), DImaCell Platform Université de Bourgogne - INRAE, Dijon, France
| | - Basile Vaucher
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Antoine Berland
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Corentin Lepoivre
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Sébastien Dupont
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Laurent Beney
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Hazel Davey
- Department of Life Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Stéphane Guyot
- Univ. Bourgogne Franche-Comté, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France.
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16
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HPTLC determination of ergosterol in wheat and structure elucidation by NMR: Toward confirming method selectivity. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Elias D, Hervay NT, Jacko J, Morvova M, Valachovic M, Gbelska Y. Erg6p is essential for antifungal drug resistance, plasma membrane properties and cell wall integrity in Candida glabrata. FEMS Yeast Res 2022; 21:6680247. [PMID: 36047961 DOI: 10.1093/femsyr/foac045] [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: 05/30/2022] [Revised: 07/18/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
ERG6 gene encodes C-24 methyltransferase, one of the specific enzymes that differ in mammalian and yeast sterol biosynthesis. To explore the function of CgErg6p in the yeast pathogen Candida glabrata, we have constructed the Cgerg6Δ deletion mutant. We found that C. glabrata cells lacking CgErg6p exhibit reduced susceptibility to both antifungal azoles and polyenes. The reduced content of ergosterol in the Cgerg6 deletion mutant was accompanied by increased expression of genes encoding the last steps of the ergosterol biosynthetic pathway. The absence of CgErg6p leads to plasma membrane hyperpolarization and decrease in its fluidity compared to the parental C. glabrata strain. The absence of sterols containing C-24 alkyls influenced the susceptibility of Cgerg6Δ mutant cells to alkali metal cations and several other metabolic inhibitors. Our results thus show that sterols lacking C-24 alkyls are not sufficient substitutes for maintaining yeast plasma membrane function. The absence of CgErg6p influences also the cell wall integrity and calcineurin signaling in C. glabrata.
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Affiliation(s)
- Daniel Elias
- Faculty of Natural Sciences, Department of Microbiology and Virology, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
| | - Nora Toth Hervay
- Faculty of Natural Sciences, Department of Microbiology and Virology, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
| | - Juraj Jacko
- Faculty of Mathematics, Physics and Informatics, Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, Mlynska dolina, 842 48 Bratislava, Slovak Republic
| | - Marcela Morvova
- Faculty of Mathematics, Physics and Informatics, Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, Mlynska dolina, 842 48 Bratislava, Slovak Republic
| | - Martin Valachovic
- Institute of Animal Biochemistry and Genetics CBS SAS, Dubravska cesta 9, 840 05 BratislavaSlovak Republic
| | - Yvetta Gbelska
- Faculty of Natural Sciences, Department of Microbiology and Virology, Comenius University in Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
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18
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Sillapachaiyaporn C, Mongkolpobsin K, Chuchawankul S, Tencomnao T, Baek SJ. Neuroprotective effects of ergosterol against TNF-α-induced HT-22 hippocampal cell injury. Biomed Pharmacother 2022; 154:113596. [PMID: 36030584 DOI: 10.1016/j.biopha.2022.113596] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/15/2022] Open
Abstract
Neuroinflammation is a brain pathology that involves the expression of high levels of pro-inflammatory mediators, including tumor necrosis factor-alpha (TNF-α). An excessive TNF-α expression could result in neuronal cell death and subsequently lead to neurodegeneration. Auricularia polytricha (AP; an edible mushroom) has been reported as a rich source of ergosterol with several medicinal benefits. The current study reports on the neuroprotective effects of AP extracts and ergosterol against the TNF-α-induced HT-22 hippocampal cell injury. The hexane extract of AP (APH) demonstrated a neuroprotective effect against the TNF-α-induced HT-22 cell toxicity, taking place through the activation of the antioxidant pathway. Ergosterol, a major component of APH, could attenuate the toxicity of TNF-α on HT-22 cells, by increasing the expression of a major antioxidant enzyme (superoxide dismutase-1) and by facilitating the scavenging of reactive oxygen species through antioxidant signaling. Moreover, an antibody array was performed to screen the possible molecular targets of ergosterol in HT-22 cells exposed to TNF-α. Based on the antibody array, the phospho-Akt was activated in the presence of ergosterol, and this finding was also supported by Western blotting analysis. Furthermore, ergosterol inhibited the transcriptional expressions of the glutamate ionotropic receptor N-methyl-D-aspartate (NMDA) type subunit 2B gene (Grin2b) through an early growth response-1 (EGR-1) overexpression in TNF-α-treated HT-22 cells. Our findings suggest that a novel therapeutic effect of AP and ergosterol against neuroinflammation, that it is mediated by an NMDA gene modulation occurring through the overexpression of the EGR-1 transcription factor.
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Affiliation(s)
- Chanin Sillapachaiyaporn
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, the Republic of Korea
| | - Kuljira Mongkolpobsin
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, the Republic of Korea
| | - Siriporn Chuchawankul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; Immunomodulation of Natural Products Research Unit, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tewin Tencomnao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand; Natural Products for Neuroprotection and Anti-ageing Research Unit, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Seung Joon Baek
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, the Republic of Korea.
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Jin X, Yang H, Chen M, Coldea TE, Zhao H. Improved osmotic stress tolerance in brewer's yeast induced by wheat gluten peptides. Appl Microbiol Biotechnol 2022; 106:4995-5006. [PMID: 35819513 DOI: 10.1007/s00253-022-12073-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/28/2022] [Accepted: 07/02/2022] [Indexed: 11/30/2022]
Abstract
The influences of three wheat gluten peptides (WGP-LL, WGP-LML, and WGP-LLL) on the osmotic stress tolerance and membrane lipid component in brewer's yeast were investigated. The results demonstrated that the growth and survival of yeast under osmotic stress were enhanced by WGP supplementation. The addition of WGP upregulated the expressions of OLE1 (encoded the delta-9 fatty acid desaturase) and ERG1 (encoded squalene epoxidase) genes under osmotic stress. At the same time, WGP addition enhanced palmitoleic acid (C16:1) content, unsaturated fatty acids/saturated fatty acids ratio, and the amount of ergosterol in yeast cells under osmotic stress. Furthermore, yeast cells in WGP-LL and WGP-LLL groups were more resistant to osmotic stress. WGP-LL and WGP-LLL addition caused 25.08% and 27.02% increase in membrane fluidity, 22.36% and 29.54% reduction in membrane permeability, 18.38% and 14.26% rise in membrane integrity in yeast cells, respectively. In addition, scanning electron microscopy analysis revealed that the addition of WGP was capable of maintaining yeast cell morphology and reducing cell membrane damage under osmotic stress. Thus, alteration of membrane lipid component by WGP was an effective approach for increasing the growth and survival of yeast cells under osmotic stress. KEY POINTS: •WGP addition enhanced cell growth and survival of yeast under osmotic stress. •WGP addition increased unsaturated fatty acids and ergosterol contents in yeast. •WGP supplementation improved membrane homeostasis in yeast at osmotic stress.
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Affiliation(s)
- Xiaofan Jin
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Huirong Yang
- College of Food Science and Technology, Southwest Minzu University, Chengdu, 610041, China.
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Teodora Emilia Coldea
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372, Cluj-Napoca-Napoca, Romania
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China. .,Research Institute for Food Nutrition and Human Health, Guangzhou, 510640, China.
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