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Megarioti AH, Esch BM, Athanasopoulos A, Koulouris D, Makridakis M, Lygirou V, Samiotaki M, Zoidakis J, Sophianopoulou V, André B, Fröhlich F, Gournas C. Ferroptosis-protective membrane domains in quiescence. Cell Rep 2023; 42:113561. [PMID: 38096056 DOI: 10.1016/j.celrep.2023.113561] [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: 04/09/2023] [Revised: 11/02/2023] [Accepted: 11/22/2023] [Indexed: 12/30/2023] Open
Abstract
Quiescence is a common cellular state, required for stem cell maintenance and microorganismal survival under stress conditions or starvation. However, the mechanisms promoting quiescence maintenance remain poorly known. Plasma membrane components segregate into distinct microdomains, yet the role of this compartmentalization in quiescence remains unexplored. Here, we show that flavodoxin-like proteins (FLPs), ubiquinone reductases of the yeast eisosome membrane compartment, protect quiescent cells from lipid peroxidation and ferroptosis. Eisosomes and FLPs expand specifically in respiratory-active quiescent cells, and mutants lacking either show accelerated aging and defective quiescence maintenance and accumulate peroxidized phospholipids with monounsaturated or polyunsaturated fatty acids (PUFAs). FLPs are essential for the extramitochondrial regeneration of the lipophilic antioxidant ubiquinol. FLPs, alongside the Gpx1/2/3 glutathione peroxidases, prevent iron-driven, PUFA-dependent ferroptotic cell death. Our work describes ferroptosis-protective mechanisms in yeast and introduces plasma membrane compartmentalization as an important factor in the long-term survival of quiescent cells.
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Affiliation(s)
- Amalia H Megarioti
- Microbial Molecular Genetics Laboratory, Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos," 15341 Agia Paraskevi, Greece; Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, 15784 Athens, Greece
| | - Bianca M Esch
- Bioanalytical Chemistry Section, Department of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany
| | - Alexandros Athanasopoulos
- Microbial Molecular Genetics Laboratory, Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos," 15341 Agia Paraskevi, Greece
| | - Dimitrios Koulouris
- Microbial Molecular Genetics Laboratory, Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos," 15341 Agia Paraskevi, Greece
| | - Manousos Makridakis
- Biotechnology Division, Systems Biology Center, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Vasiliki Lygirou
- Biotechnology Division, Systems Biology Center, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Martina Samiotaki
- Institute for Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," 16672 Vari, Greece
| | - Jerome Zoidakis
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, 15784 Athens, Greece; Biotechnology Division, Systems Biology Center, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Vicky Sophianopoulou
- Microbial Molecular Genetics Laboratory, Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos," 15341 Agia Paraskevi, Greece
| | - Bruno André
- Molecular Physiology of the Cell Laboratory, Université Libre de Bruxelles (ULB), IBMM, 6041 Gosselies, Belgium
| | - Florian Fröhlich
- Bioanalytical Chemistry Section, Department of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany; Center for Cellular Nanoanalytic Osnabrück (CellNanOs), Osnabrück University, 49076 Osnabrück, Germany.
| | - Christos Gournas
- Microbial Molecular Genetics Laboratory, Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos," 15341 Agia Paraskevi, Greece.
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Gandra RM, Johnson CJ, Nett JE, Konopka JB. The Candida albicans ζ-crystallin homolog Zta1 promotes resistance to oxidative stress. mSphere 2023; 8:e0050723. [PMID: 38032185 PMCID: PMC10732081 DOI: 10.1128/msphere.00507-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
IMPORTANCE Candida albicans is an important human pathogen that can cause lethal systemic infections. The ability of C. albicans to colonize and establish infections is closely tied to its highly adaptable nature and capacity to resist various types of stress, including oxidative stress. Previous studies showed that four C. albicans proteins belonging to the flavodoxin-like protein family of quinone reductases are needed for resistance to quinones and virulence. Therefore, in this study, we examined the role of a distinct type of quinone reductase, Zta1, and found that it acts in conjunction with the flavodoxin-like proteins to protect against oxidative stress.
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Affiliation(s)
- Rafael M. Gandra
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, USA
| | - Chad J. Johnson
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jeniel E. Nett
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - James B. Konopka
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, USA
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Gandra RM, Johnson CJ, Nett JE, Konopka JB. The Candida albicans ζ-crystallin homolog Zta1 promotes resistance to oxidative stress. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.05.556406. [PMID: 37732195 PMCID: PMC10508745 DOI: 10.1101/2023.09.05.556406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
The fungal pathogen Candida albicans is capable of causing lethal infections in humans. Its pathogenic potential is due in part to the ability to resist various stress conditions in the host, including oxidative stress. Recent studies showed that a family of four flavodoxin-like proteins (Pst1, Pst2, Pst3, Ycp4) that function as quinone reductases promotes resistance to oxidation and is needed for virulence. Therefore, in this study Zta1 was examined because it belongs to a structurally distinct family of quinone reductases that are highly conserved in eukaryotes and have been called the ζ-crystallins. The levels of Zta1 in C. albicans rapidly increased after exposure to oxidants, consistent with a role in resisting oxidative stress. Accumulation of reactive oxygen species was significantly higher in cells lacking ZTA1 upon exposure to quinones and other oxidants. Furthermore, deletion of ZTA1 in a mutant lacking the four flavodoxin-like proteins, resulted in further increased susceptibility to quinones, indicating that these distinct quinone reductases work in combination. These results demonstrate that Zta1 contributes to C. albicans survival after exposure to oxidative conditions, which increases the understanding of how C. albicans resists stressful conditions in the host.
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Affiliation(s)
- Rafael M. Gandra
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
| | | | - Jeniel E. Nett
- University of Wisconsin-Madison, Department of Medicine
- University of Wisconsin-Madison, Department of Medical Microbiology & Immunology
| | - James B. Konopka
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
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He L, Wang M, Wang H, Zhao T, Cui K, Zhou L. iTRAQ proteomic analysis of the inhibitory effect of 1,6-O,O-diacetylbritannilactone on the plant pathogenic oomycete Phytophthora capsici. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 184:105125. [PMID: 35715063 DOI: 10.1016/j.pestbp.2022.105125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Phytophthora capsici is a highly destructive oomycete of vegetables; its management is challenging due to its broad host range, rapid dispersion, resilient spores and severe fungicide resistance. Identifying an effective alternative fungicide is important for the control of P. capsici. 1,6-O,O-diacetylbritannilactone (ABLOO), one of the secondary metabolites of Inula Britannica, showed a favorable inhibitory activity against P. capsici at different developmental stages, with a sensitivity order as follows: sporangia formation (30.45 mg/L) > zoospore discharge (77.69 mg/L) > mycelial growth (93.18 mg/L) > cystospore germination (591.48 mg/L). To investigate the mode of action of ABLOO in P. capsici, iTRAQ-based quantitative proteomic analysis was performed by comparing the expression levels of proteins in the control and ABLOO-treated (400 mg/L, inhibition rate of 80%) mycelial groups. A total of 65 downregulated and 75 upregulated proteins were identified in the proteomic analysis. Functional enrichment analyses showed that proteins with transmembrane transport activity were significantly inhibited, while proteins involved in energy production were significantly increased, including proteins involved in ubiquinone and other terpenoid-quinone biosynthesis, oxidative phosphorylation, and glycolysis/gluconeogenesis. The morphological results indicated that ABLOO treatment could decrease the thickness of the cell walls of P. capsici mycelia. Correspondingly, biochemical results showed that ABLOO treatment reduced the β-1,3-glucan contents (the key component of the cell wall of P. capsici) and increased the cell membrane permeability of P. capsici. ABLOO may exhibit antioomycete activity by destroying the cell membrane of P. capsici. This study provides new evidence regarding the inhibitory mechanisms of ABLOO against P. capsici.
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Affiliation(s)
- Leiming He
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, No. 63, Agricultural Road, Zhengzhou 450002, Henan, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Mengke Wang
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, No. 63, Agricultural Road, Zhengzhou 450002, Henan, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Haijiao Wang
- Forest Diseases and Pests Control and Quarantine Station of Henan Province, Zhengzhou 450008, Henan, China
| | - Te Zhao
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, No. 63, Agricultural Road, Zhengzhou 450002, Henan, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Kaidi Cui
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, No. 63, Agricultural Road, Zhengzhou 450002, Henan, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China.
| | - Lin Zhou
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, No. 63, Agricultural Road, Zhengzhou 450002, Henan, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China.
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