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Li M, Tang S, Peng X, Sharma G, Yin S, Hao Z, Li J, Shen J, Dai C. Lycopene as a Therapeutic Agent against Aflatoxin B1-Related Toxicity: Mechanistic Insights and Future Directions. Antioxidants (Basel) 2024; 13:452. [PMID: 38671900 PMCID: PMC11047733 DOI: 10.3390/antiox13040452] [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: 03/13/2024] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Aflatoxin (AFT) contamination poses a significant global public health and safety concern, prompting widespread apprehension. Of the various AFTs, aflatoxin B1 (AFB1) stands out for its pronounced toxicity and its association with a spectrum of chronic ailments, including cardiovascular disease, neurodegenerative disorders, and cancer. Lycopene, a lipid-soluble natural carotenoid, has emerged as a potential mitigator of the deleterious effects induced by AFB1 exposure, spanning cardiac injury, hepatotoxicity, nephrotoxicity, intestinal damage, and reproductive impairment. This protective mechanism operates by reducing oxidative stress, inflammation, and lipid peroxidation, and activating the mitochondrial apoptotic pathway, facilitating the activation of mitochondrial biogenesis, the endogenous antioxidant system, and the nuclear factor erythroid 2-related factor 2 (Nrf2)/kelch-like ECH-associated protein 1 (KEAP1) and peroxisome proliferator-activated receptor-γ coactivator-1 (PGC-1) pathways, as well as regulating the activities of cytochrome P450 (CYP450) enzymes. This review provides an overview of the protective effects of lycopene against AFB1 exposure-induced toxicity and the underlying molecular mechanisms. Furthermore, it explores the safety profile and potential clinical applications of lycopene. The present review underscores lycopene's potential as a promising detoxification agent against AFB1 exposure, with the intent to stimulate further research and practical utilization in this domain.
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Affiliation(s)
- Meng Li
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
| | - Shusheng Tang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
| | - Xinyan Peng
- College of Life Sciences, Yantai University, Yantai 264000, China;
| | - Gaurav Sharma
- Cardiovascular and Thoracic Surgery, Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA;
| | - Shutao Yin
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
| | - Zhihui Hao
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
| | - Jichang Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang District, Harbin 150030, China;
| | - Jianzhong Shen
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
| | - Chongshan Dai
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.L.); (S.T.); (S.Y.); (Z.H.)
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2
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Bhardwaj S, Roy KK. ClpP Peptidase as a Plausible Target for the Discovery of Novel Antibiotics. Curr Drug Targets 2024; 25:108-120. [PMID: 38151841 DOI: 10.2174/0113894501274958231220053714] [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: 07/31/2023] [Revised: 11/16/2023] [Accepted: 12/06/2023] [Indexed: 12/29/2023]
Abstract
Antimicrobial resistance (AMR) to currently available antibiotics/drugs is a global threat. It is desirable to develop new drugs that work through a novel target(s) to avoid drug resistance. This review discusses the potential of the caseinolytic protease P (ClpP) peptidase complex as a novel target for finding novel antibiotics, emphasising the ClpP's structure and function. ClpP contributes to the survival of bacteria via its ability to destroy misfolded or aggregated proteins. In consequence, its inhibition may lead to microbial death. Drugs inhibiting ClpP activity are currently being tested, but no drug against this target has been approved yet. It was demonstrated that Nblocked dipeptides are essential for activating ClpP's proteolytic activity. Hence, compounds mimicking these dipeptides could act as inhibitors of the formation of an active ClpP complex. Drugs, including Bortezomib, Cisplatin, Cefmetazole, and Ixazomib, inhibit ClpP activation. However, they were not approved as drugs against the target because of their high toxicity, likely due to the presence of strong electrophiles in their warheads. The modifications of these warheads could be a good strategy to reduce the toxicity of these molecules. For instance, a boronate warhead was replaced by a chloromethyl ketone, and this new molecule was shown to exhibit selectivity for prokaryotic ClpP. A better understanding of the structure and function of the ClpP complex would benefit the search for compounds mimicking N-blocked dipeptides that would inhibit ClpP complex activity and cause bacterial death.
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Affiliation(s)
- Smriti Bhardwaj
- School of Health Sciences and Technology, UPES, Dehradun - 248007, Uttarakhand, India
| | - Kuldeep K Roy
- School of Health Sciences and Technology, UPES, Dehradun - 248007, Uttarakhand, India
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3
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Furukawa T, Kushiro M, Nakagawa H, Enomoto H, Sakuda S. Low-dose ethanol increases aflatoxin production due to the adh1-dependent incorporation of ethanol into aflatoxin biosynthesis. iScience 2023; 26:106051. [PMID: 36818304 PMCID: PMC9932502 DOI: 10.1016/j.isci.2023.106051] [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: 05/04/2022] [Revised: 12/09/2022] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
Aflatoxins are toxic secondary metabolites produced by some aspergilli, including Aspergillus flavus. Recently, ethanol has attracted attention as an agent for the control of aflatoxin contamination. However, as aflatoxin biosynthesis utilizes acetyl coenzyme A, ethanol may be conversely exploited for aflatoxin production. Here, we demonstrated that not only the 13C of labeled ethanol, but also that of labeled 2-propanol, was incorporated into aflatoxin B1 and B2, and that ethanol and 2-propanol upregulated aflatoxin production at low concentrations (<1% and <0.6%, respectively). In the alcohol dehydrogenase gene adh1 deletion mutant, the 13C incorporation of labeled ethanol, but not labeled 2-propanol, into aflatoxin B1 and B2 was attenuated, indicating that the alcohols have different utilization pathways. Our results show that A. flavus utilizes ethanol and 2-propanol as carbon sources for aflatoxin biosynthesis and that adh1 indirectly controls aflatoxin production by balancing ethanol production and catabolism.
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Affiliation(s)
- Tomohiro Furukawa
- Institute of Food Research, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannon-dai, Tsukuba-shi, Ibaraki 305-8642, Japan,Corresponding author
| | - Masayo Kushiro
- Institute of Food Research, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannon-dai, Tsukuba-shi, Ibaraki 305-8642, Japan
| | - Hiroyuki Nakagawa
- Research Center for Advanced Analysis, NARO, 2-1-12 Kannon-dai, Tsukuba-shi, Ibaraki 305-8642, Japan
| | - Hirofumi Enomoto
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, 1-1 Toyosatodai, Utsunomiya-shi, Tochigi 320-8551, Japan,Advanced Instrumental Analysis Center, Teikyo University, 1-1 Toyosatodai, Utsunomiya-shi, Tochigi 320-8551, Japan
| | - Shohei Sakuda
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, 1-1 Toyosatodai, Utsunomiya-shi, Tochigi 320-8551, Japan
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Hareyama Y, Tarao M, Toyota K, Furukawa T, Fujii Y, Kushiro M. Effects of Four Isothiocyanates in Dissolved and Gaseous States on the Growth and Aflatoxin Production of Aspergillus flavus In Vitro. Toxins (Basel) 2022; 14:toxins14110756. [PMID: 36356006 PMCID: PMC9697429 DOI: 10.3390/toxins14110756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Aflatoxins (AFs), a class of toxins produced by certain species of the genus Aspergillus, occasionally contaminate food and cause serious damage to human health and the economy. AFs contamination is a global problem, and there is a need to develop effective strategies to control aflatoxigenic fungi. In this study, we focused on isothiocyanates (ITCs) as potential chemical agents for the control of aflatoxigenic fungi. We quantitatively evaluated the effects of four ITCs (allyl ITC (AITC), benzyl ITC (BITC), and methyl and phenylethyl ITCs) in dissolved and gaseous states on the growth and aflatoxin B1 production of Aspergillus flavus. In experiments using dissolved ITCs, BITC was found to be the strongest inhibitor of growth and aflatoxin B1 production by A. flavus. Meanwhile, in the gaseous state, AITC strongly inhibited the A. flavus growth. When the concentration of ITCs in the liquid medium was quantified over time, AITC levels decreased to below the detection limit within 24 h, whereas BITC levels remained stable even after 48 h. These results suggested that when ITCs are utilized to control aflatoxigenic fungi, it is necessary to use them in a dissolved or gaseous state, depending on their volatility.
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Affiliation(s)
- Yohei Hareyama
- Department of Food Energy System Science, Graduate School of Bio-Application and System Engineering Sciences, Tokyo University of Agriculture and Technology, 2-24-16, Tokyo 184-8588, Japan
- Institute of Food Research, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannondai, Tsukuba 305-8642, Japan
| | - Mitsunori Tarao
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8506, Japan
| | - Koki Toyota
- Department of Food Energy System Science, Graduate School of Bio-Application and System Engineering Sciences, Tokyo University of Agriculture and Technology, 2-24-16, Tokyo 184-8588, Japan
| | - Tomohiro Furukawa
- Institute of Food Research, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannondai, Tsukuba 305-8642, Japan
| | - Yoshiharu Fujii
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8506, Japan
| | - Masayo Kushiro
- Institute of Food Research, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannondai, Tsukuba 305-8642, Japan
- Correspondence: ; Tel.: +81-29-838-8037
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5
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Miyata S, Kodaka M, Kikuchi A, Matsunaga Y, Shoji K, Kuan YC, Iwase M, Takeda K, Katsuta R, Ishigami K, Matsumoto Y, Suzuki T, Yamamoto Y, Sato R, Inoue J. Sulforaphane suppresses the activity of sterol regulatory element-binding proteins (SREBPs) by promoting SREBP precursor degradation. Sci Rep 2022; 12:8715. [PMID: 35610278 PMCID: PMC9130306 DOI: 10.1038/s41598-022-12347-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 05/09/2022] [Indexed: 12/26/2022] Open
Abstract
Sterol regulatory element-binding proteins (SREBPs) are transcription factors that regulate various genes involved in cholesterol and fatty acid synthesis. In this study, we describe that naturally occurring isothiocyanate sulforaphane (SFaN) impairs fatty acid synthase promoter activity and reduces SREBP target gene (e.g., fatty acid synthase and acetyl-CoA carboxylase 1) expression in human hepatoma Huh-7 cells. SFaN reduced SREBP proteins by promoting the degradation of the SREBP precursor. Amino acids 595–784 of SREBP-1a were essential for SFaN-mediated SREBP-1a degradation. We also found that such SREBP-1 degradation occurs independently of the SREBP cleavage-activating protein and the Keap1-Nrf2 pathway. This study identifies SFaN as an SREBP inhibitor and provides evidence that SFaN could have major potential as a pharmaceutical preparation against hepatic steatosis and obesity.
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Affiliation(s)
- Shingo Miyata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Manami Kodaka
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Akito Kikuchi
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yuki Matsunaga
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Kenta Shoji
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yen-Chou Kuan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.,Department of Horticulture and Landscape Architecture, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan
| | - Masamori Iwase
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Keita Takeda
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ryo Katsuta
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ken Ishigami
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yu Matsumoto
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Tsukasa Suzuki
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yuji Yamamoto
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ryuichiro Sato
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
| | - Jun Inoue
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan.
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6
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Mabanglo MF, Bhandari V, Houry WA. Substrates and interactors of the ClpP protease in the mitochondria. Curr Opin Chem Biol 2021; 66:102078. [PMID: 34446368 DOI: 10.1016/j.cbpa.2021.07.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 12/21/2022]
Abstract
The ClpP protease is found across eukaryotic and prokaryotic organisms. It is well-characterized in bacteria where its function is important in maintaining protein homeostasis. Along with its ATPase partners, it has been shown to play critical roles in the regulation of enzymes involved in important cellular pathways. In eukaryotes, ClpP is found within cellular organelles. Proteomic studies have begun to characterize the role of this protease in the mitochondria through its interactions. Here, we discuss the proteomic techniques used to identify its interactors and present an atlas of mitochondrial ClpP substrates. The ClpP substrate pool is extensive and consists of proteins involved in essential mitochondrial processes such as the Krebs cycle, oxidative phosphorylation, translation, fatty acid metabolism, and amino acid metabolism. Discoveries of these associations have begun to illustrate the functional significance of ClpP in human health and disease.
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Affiliation(s)
- Mark F Mabanglo
- Department of Biochemistry, University of Toronto, Toronto, Ontario, M5G 1M1, Canada
| | - Vaibhav Bhandari
- Department of Biochemistry, University of Toronto, Toronto, Ontario, M5G 1M1, Canada
| | - Walid A Houry
- Department of Biochemistry, University of Toronto, Toronto, Ontario, M5G 1M1, Canada; Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada.
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7
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Ferrarini I, Louie A, Zhou L, El-Deiry WS. ONC212 is a Novel Mitocan Acting Synergistically with Glycolysis Inhibition in Pancreatic Cancer. Mol Cancer Ther 2021; 20:1572-1583. [PMID: 34224362 DOI: 10.1158/1535-7163.mct-20-0962] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/08/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022]
Abstract
ONC212 is a fluorinated imipridone with preclinical efficacy against pancreatic and other malignancies. Although mitochondrial protease ClpP was identified as an ONC212-binding target, the mechanism leading to cancer cell death is incompletely understood. We investigated mitochondrial dysfunction and metabolic rewiring triggered by ONC212 in pancreatic cancer, a deadly malignancy with an urgent need for novel therapeutics. We found ClpP is expressed in pancreatic cancer cells and is required for ONC212 cytotoxicity. ClpX, the regulatory binding partner of ClpP, is suppressed upon ONC212 treatment. Immunoblotting and extracellular flux analysis showed ONC212 impairs oxidative phosphorylation (OXPHOS) with decrease in mitochondrial-derived ATP production. Although collapse of mitochondrial function is observed across ONC212-treated cell lines, only OXPHOS-dependent cells undergo apoptosis. Cells relying on glycolysis undergo growth arrest and upregulate glucose catabolism to prevent ERK1/2 inhibition and apoptosis. Glucose restriction or combination with glycolytic inhibitor 2-deoxy-D-glucose synergize with ONC212 and promote apoptosis in vitro and in vivo Thus, ONC212 is a novel mitocan targeting oxidative metabolism in pancreatic cancer, leading to different cellular outcomes based on divergent metabolic programs.
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Affiliation(s)
- Isacco Ferrarini
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,Department of Medicine, Section of Hematology, Cancer Research and Cell Biology Laboratory, University of Verona, Verona, Italy.,Department of Pathology and Laboratory medicine, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, Rhode Island.,Cancer Center at Brown University, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Anna Louie
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,Department of Pathology and Laboratory medicine, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, Rhode Island.,Cancer Center at Brown University, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,Department of Surgery, Brown University, Lifespan Health System and Warren, Alpert Medical School, Brown University, Providence, Rhode Island
| | - Lanlan Zhou
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,Department of Pathology and Laboratory medicine, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, Rhode Island.,Cancer Center at Brown University, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Wafik S El-Deiry
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Warren Alpert Medical School, Brown University, Providence, Rhode Island. .,Department of Pathology and Laboratory medicine, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, Rhode Island.,Cancer Center at Brown University, Warren Alpert Medical School, Brown University, Providence, Rhode Island.,Hematology-Oncology Division, Department of Medicine, Lifespan Health System and Warren Alpert Medical School, Brown University, Providence, Rhode Island
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8
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Brötz-Oesterhelt H, Vorbach A. Reprogramming of the Caseinolytic Protease by ADEP Antibiotics: Molecular Mechanism, Cellular Consequences, Therapeutic Potential. Front Mol Biosci 2021; 8:690902. [PMID: 34109219 PMCID: PMC8182300 DOI: 10.3389/fmolb.2021.690902] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 04/28/2021] [Indexed: 12/14/2022] Open
Abstract
Rising antibiotic resistance urgently calls for the discovery and evaluation of novel antibiotic classes and unique antibiotic targets. The caseinolytic protease Clp emerged as an unprecedented target for antibiotic therapy 15 years ago when it was observed that natural product-derived acyldepsipeptide antibiotics (ADEP) dysregulated its proteolytic core ClpP towards destructive proteolysis in bacterial cells. A substantial database has accumulated since on the interaction of ADEP with ClpP, which is comprehensively compiled in this review. On the molecular level, we describe the conformational control that ADEP exerts over ClpP, the nature of the protein substrates degraded, and the emerging structure-activity-relationship of the ADEP compound class. On the physiological level, we review the multi-faceted antibacterial mechanism, species-dependent killing modes, the activity against carcinogenic cells, and the therapeutic potential of the compound class.
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Affiliation(s)
- Heike Brötz-Oesterhelt
- Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tübingen, Germany.,Cluster of Excellence: Controlling Microbes to Fight Infection, Tübingen, Germany
| | - Andreas Vorbach
- Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tübingen, Germany
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