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Yan J, Kahyo T, Zhang H, Ping Y, Zhang C, Jiang S, Ji Q, Ferdous R, Islam MS, Oyama S, Aramaki S, Sato T, Mimi MA, Hasan MM, Setou M. Alpha-Synuclein Interaction with UBL3 Is Upregulated by Microsomal Glutathione S-Transferase 3, Leading to Increased Extracellular Transport of the Alpha-Synuclein under Oxidative Stress. Int J Mol Sci 2024; 25:7353. [PMID: 39000460 PMCID: PMC11242132 DOI: 10.3390/ijms25137353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024] Open
Abstract
Aberrant aggregation of misfolded alpha-synuclein (α-syn), a major pathological hallmark of related neurodegenerative diseases such as Parkinson's disease (PD), can translocate between cells. Ubiquitin-like 3 (UBL3) is a membrane-anchored ubiquitin-fold protein and post-translational modifier. UBL3 promotes protein sorting into small extracellular vesicles (sEVs) and thereby mediates intercellular communication. Our recent studies have shown that α-syn interacts with UBL3 and that this interaction is downregulated after silencing microsomal glutathione S-transferase 3 (MGST3). However, how MGST3 regulates the interaction of α-syn and UBL3 remains unclear. In the present study, we further explored this by overexpressing MGST3. In the split Gaussia luciferase complementation assay, we found that the interaction between α-syn and UBL3 was upregulated by MGST3. While Western blot and RT-qPCR analyses showed that silencing or overexpression of MGST3 did not significantly alter the expression of α-syn and UBL3, the immunocytochemical staining analysis indicated that MGST3 increased the co-localization of α-syn and UBL3. We suggested roles for the anti-oxidative stress function of MGST3 and found that the effect of MGST3 overexpression on the interaction between α-syn with UBL3 was significantly rescued under excess oxidative stress and promoted intracellular α-syn to extracellular transport. In conclusion, our results demonstrate that MGST3 upregulates the interaction between α-syn with UBL3 and promotes the interaction to translocate intracellular α-syn to the extracellular. Overall, our findings provide new insights and ideas for promoting the modulation of UBL3 as a therapeutic agent for the treatment of synucleinopathy-associated neurodegenerative diseases.
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Affiliation(s)
- Jing Yan
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Tomoaki Kahyo
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
- Quantum Imaging Laboratory, Division of Research and Development in Photonics Technology, Institute of Photonics Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Hengsen Zhang
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Yashuang Ping
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Chi Zhang
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Shuyun Jiang
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
- Department of Orthopedic Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Qianqing Ji
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Rafia Ferdous
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Md. Shoriful Islam
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Soho Oyama
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Shuhei Aramaki
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
- Department of Radiation Oncology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan
- Translational Biomedical Photonics, Institute of Photonics Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Tomohito Sato
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Mst. Afsana Mimi
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Md. Mahmudul Hasan
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
| | - Mitsutoshi Setou
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan; (J.Y.); (T.K.); (H.Z.); (Y.P.); (C.Z.); (S.J.); (Q.J.); (R.F.); (M.S.I.); (S.O.); (S.A.); (T.S.); (M.A.M.); (M.M.H.)
- International Mass Imaging and Spatial Omics Center, Institute of Photonics Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo-ku, Hamamatsu, Shizuoka 431-3192, Japan
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Chaomulige, Matsuo T, Sugimoto K, Miyaji M, Hosoya O, Ueda M, Kobayashi R, Horii T, Hatada I. Morphometric Analysis of the Eye by Magnetic Resonance Imaging in MGST2-Gene-Deficient Mice. Biomedicines 2024; 12:370. [PMID: 38397974 PMCID: PMC10887158 DOI: 10.3390/biomedicines12020370] [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: 12/13/2023] [Revised: 01/23/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Strabismus, a neuro-ophthalmological condition characterized by misalignment of the eyes, is a common ophthalmic disorder affecting both children and adults. In our previous study, we identified the microsomal glutathione S-transferase 2 (MGST2) gene as one of the potential candidates for comitant strabismus susceptibility in a Japanese population. The MGST2 gene belongs to the membrane-associated protein involved in the generation of pro-inflammatory mediators, and it is also found in the protection against oxidative stress by decreasing the reactivity of oxidized lipids. To look for the roles of the MGST2 gene in the development, eye alignment, and overall morphology of the eye as the possible background of strabismus, MGST2 gene knockout (KO) mice were generated by CRISPR/Cas9-mediated gene editing with guide RNAs targeting the MGST2 exon 2. The ocular morphology of the KO mice was analyzed through high-resolution images obtained by a magnetic resonance imaging (MRI) machine for small animals. The morphometric analyses showed that the height, width, and volume of the eyeballs in MGST2 KO homozygous mice were significantly greater than those of wild-type mice, indicating that the eyes of MGST2 KO homozygous mice were significantly enlarged. There were no significant differences in the axis length and axis angle. These morphological changes may potentially contribute to the development of a subgroup of strabismus.
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Affiliation(s)
- Chaomulige
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8558, Japan;
| | - Toshihiko Matsuo
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8558, Japan;
- Department of Ophthalmology, Okayama University Hospital, Okayama 700-8558, Japan
| | - Kohei Sugimoto
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8558, Japan;
| | - Mary Miyaji
- Department of Medical Neurobiology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (M.M.); (O.H.)
| | - Osamu Hosoya
- Department of Medical Neurobiology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (M.M.); (O.H.)
| | - Masashi Ueda
- Department of Biofunctional Imaging Analysis, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan;
| | - Ryosuke Kobayashi
- Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan; (R.K.); (T.H.); (I.H.)
| | - Takuro Horii
- Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan; (R.K.); (T.H.); (I.H.)
| | - Izuho Hatada
- Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan; (R.K.); (T.H.); (I.H.)
- Viral Vector Core, Gunma University Initiative for Advanced Research (GIAR), Maebashi 371-8511, Japan
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Yan J, Zhang H, Tomochika Y, Chen B, Ping Y, Islam MS, Aramaki S, Sato T, Nagashima Y, Nakamura T, Kahyo T, Kaneda D, Ogawa K, Yoshida M, Setou M. UBL3 Interaction with α-Synuclein Is Downregulated by Silencing MGST3. Biomedicines 2023; 11:2491. [PMID: 37760932 PMCID: PMC10648775 DOI: 10.3390/biomedicines11092491] [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: 08/08/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Ubiquitin-like 3 (UBL3) is a membrane-anchored protein that plays a crucial role in sorting proteins into small extracellular vesicles. Aggregations of alpha-synuclein (α-syn) are associated with the pathology of neurodegenerative diseases such as Parkinson's disease. Recently, the interaction between UBL3 and α-syn was discovered, with potential implications in clearing excess α-syn from neurons and its role in disease spread. However, the regulator that can mediate the interaction between UBL3 and α-syn remains unclear. In this study, using the split gaussian luciferase complementation assay and RNA interference technology, we identified that QSOX2, HTATIP2, UBE3C, MGST3, NSF, HECTD1, SAE1, and ATG3 were involved in downregulating the interaction between UBL3 and α-syn. Notably, silencing MGST3 had the most significant impact. Immunocytochemistry staining confirmed the impact of MGST3 silencing on the co-localization of UBL3 and α-syn in cells. MGST3 is a part of the antioxidant system, and silencing MGST3 is believed to contribute to oxidative stress. We induced oxidative stress with hydrogen peroxide, observing its effect on the UBL3-α-syn interaction, and showing that 800 µM of H2O2 downregulated this interaction. In conclusion, silencing MGST3 downregulates the interaction between UBL3 and α-syn.
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Affiliation(s)
- Jing Yan
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Hengsen Zhang
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Yuna Tomochika
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Bin Chen
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Yashuang Ping
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Md. Shoriful Islam
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Shuhei Aramaki
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
- Department of Radiation Oncology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Tomohito Sato
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
- International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Yu Nagashima
- Institute for Medical Photonics Research, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Tomohiko Nakamura
- Department of Neurology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Tomoaki Kahyo
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
- International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Daita Kaneda
- Choju Medical Institute, Fukushimura Hospital, Yamanaka-19-14 Noyoricho, Toyohashi 441-8124, Japan
| | - Kenji Ogawa
- Laboratory of Veterinary Epizootiology, College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Japan
| | - Minoru Yoshida
- Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo 113-8657, Japan
- RIKEN Center for Sustainable Resource Science, Wako 351-0198, Japan
| | - Mitsutoshi Setou
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
- International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
- Department of Systems Molecular Anatomy, Institute for Medical Photonics Research, Preeminent Medical Photonics, Education & Research Center, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
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Zhang J, Ye ZW, Morgenstern R, Townsend DM, Tew KD. Microsomal glutathione transferase 1 in cancer and the regulation of ferroptosis. Adv Cancer Res 2023; 160:107-132. [PMID: 37704286 PMCID: PMC10586476 DOI: 10.1016/bs.acr.2023.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Microsomal glutathione transferase 1 (MGST1) is a member of the MAPEG family (membrane associated proteins in eicosanoid and glutathione metabolism), defined according to enzymatic activities, sequence motifs, and structural properties. MGST1 is a homotrimer which can bind three molecules of glutathione (GSH), with one modified to a thiolate anion displaying one-third-of-sites-reactivity. MGST1 has both glutathione transferase and peroxidase activities. Each is based on stabilizing the GSH thiolate in the same active site. MGST1 is abundant in the liver and displays a broad subcellular distribution with high levels in endoplasmic reticulum and mitochondrial membranes, consistent with a physiological role in protection from reactive electrophilic intermediates and oxidative stress. In this review paper, we particularly focus on recent advances made in understanding MGST1 activation, induction, broad subcellular distribution, and the role of MGST1 in apoptosis, ferroptosis, cancer progression, and therapeutic responses.
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Affiliation(s)
- Jie Zhang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States.
| | - Zhi-Wei Ye
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States
| | - Ralf Morgenstern
- Institute of Environmental Medicine, Division of Biochemical Toxicology, Karolinska Institutet, Stockholm, Sweden
| | - Danyelle M Townsend
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States
| | - Kenneth D Tew
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States
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Jiang H, Sun M, Zhao Y, Liu G, Zhong L, Xue H, Chen X, Zheng Y, Wang M. The early function of cortisol in liver during Aeromonas hydrophila infection: Dynamics of the transcriptome and accessible chromatin landscapes. Front Immunol 2022; 13:989075. [PMID: 36532002 PMCID: PMC9751032 DOI: 10.3389/fimmu.2022.989075] [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: 07/08/2022] [Accepted: 11/17/2022] [Indexed: 12/02/2022] Open
Abstract
In China, channel catfish (Ictalurus punctatus) is an important aquaculture species; however, haemorrhagic disease (Aeromonas hydrophila induced disease) in these fish has caused tremendous economic loss due to high morbidity and mass mortality in the breeding industry. The role of cortisol in bacterial diseases, particularly in the acute phase, remains unclear. In this study, liver transcriptome (RNA-seq) and chromatin accessibility (ATAC-seq) analyses were employed to investigate the early functional role of cortisol in Aeromonas hydrophila-stimulated responses. Our experiments confirmed that A. hydrophila infection can initially significantly increase serum cortisol levels at 1 h after infection. At this time point, the increased serum cortisol levels can significantly regulate A. hydrophila-regulated genes by affecting both transcriptome and chromatin accessibility. Cross-analysis of RNA-seq and ATAC-seq revealed that a certain gene group (92 target_DEGs) was regulated at an early time point by cortisol. KEGG enrichment analysis revealed that the top three pathways according to target_DEGs were cancer, glutathione metabolism, and the Notch signalling pathway. The protein-protein interaction analysis of target_DEGs revealed that they may be primarily involved in cell proliferation, CD8+ T cell function, glutathione synthesis, and activation of the NF-κB signalling pathway. This suggests that after the emergence of immune stress, the early regulation of cortisol is positive against the immune response. It is possible that in this situation, the animal is attempting to avoid dangerous situations and risks and then cope with the imbalance produced by the stressor to ultimately restore homeostasis. Our results will contribute to future research on fish and provide valuable insight regarding the mechanism of immune regulation by cortisol and the study of bacterial haemorrhagic disease in channel catfish.
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Di Micco S, Terracciano S, Pierri M, Cantone V, Liening S, König S, Garscha U, Hofstetter RK, Koeberle A, Werz O, Bruno I, Bifulco G. Identification of 2,4-Dinitro-Biphenyl-Based Compounds as MAPEG Inhibitors. ChemMedChem 2022; 17:e202200327. [PMID: 36111583 PMCID: PMC9827972 DOI: 10.1002/cmdc.202200327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/15/2022] [Indexed: 01/14/2023]
Abstract
We identified 2,4-dinitro-biphenyl-based compounds as new inhibitors of leukotriene C4 synthase (LTC4 S) and 5-lipoxygenase-activating protein (FLAP), both members of the "Membrane Associated Proteins in Eicosanoid and Glutathione metabolism" (MAPEG) family involved in the biosynthesis of pro-inflammatory eicosanoids. By molecular docking we evaluated the putative binding against the targets of interest, and by applying cell-free and cell-based assays we assessed the inhibition of LTC4 S and FLAP by the small molecules at low micromolar concentrations. The present results integrate the previously observed inhibitory profile of the tested compounds against another MAPEG member, i. e., microsomal prostaglandin E2 synthase (mPGES)-1, suggesting that the 2,4-dinitro-biphenyl scaffold is a suitable molecular platform for a multitargeting approach to modulate pro-inflammatory mediators in inflammation and cancer treatment.
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Affiliation(s)
- Simone Di Micco
- European Biomedical Research Institute of Salerno (EBRIS)Via Salvatore De Renzi 5084125SalernoItaly
| | - Stefania Terracciano
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II 13284084FiscianoSAItaly
| | - Martina Pierri
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II 13284084FiscianoSAItaly
| | - Vincenza Cantone
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II 13284084FiscianoSAItaly,Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Stefanie Liening
- Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Stefanie König
- Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Ulrike Garscha
- Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Robert Klaus Hofstetter
- Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Andreas Koeberle
- Michael Popp Research InstituteUniversity of InnsbruckMitterweg 246020InnsbruckAustria
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal ChemistryInstitute of PharmacyFriedrich-Schiller-University JenaPhilosophenweg 147743JenaGermany
| | - Ines Bruno
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II 13284084FiscianoSAItaly
| | - Giuseppe Bifulco
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II 13284084FiscianoSAItaly
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Steinmetz-Späh J, Liu J, Singh R, Ekoff M, Boddul S, Tang X, Bergqvist F, Idborg H, Heitel P, Rönnberg E, Merk D, Wermeling F, Haeggström JZ, Nilsson G, Steinhilber D, Larsson K, Korotkova M, Jakobsson PJ. Biosynthesis of prostaglandin 15dPGJ 2 -glutathione and 15dPGJ 2-cysteine conjugates in macrophages and mast cells via MGST3. J Lipid Res 2022; 63:100310. [PMID: 36370807 PMCID: PMC9792570 DOI: 10.1016/j.jlr.2022.100310] [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: 01/27/2022] [Revised: 10/26/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
Inhibition of microsomal prostaglandin E synthase-1 (mPGES-1) results in decreased production of proinflammatory PGE2 and can lead to shunting of PGH2 into the prostaglandin D2 (PGD2)/15-deoxy-Δ12,14-prostaglandin J2 (15dPGJ2) pathway. 15dPGJ2 forms Michael adducts with thiol-containing biomolecules such as GSH or cysteine residues on target proteins and is thought to promote resolution of inflammation. We aimed to elucidate the biosynthesis and metabolism of 15dPGJ2 via conjugation with GSH, to form 15dPGJ2-glutathione (15dPGJ2-GS) and 15dPGJ2-cysteine (15dPGJ2-Cys) conjugates and to characterize the effects of mPGES-1 inhibition on the PGD2/15dPGJ2 pathway in mouse and human immune cells. Our results demonstrate the formation of PGD2, 15dPGJ2, 15dPGJ2-GS, and 15dPGJ2-Cys in RAW264.7 cells after lipopolysaccharide stimulation. Moreover, 15dPGJ2-Cys was found in lipopolysaccharide-activated primary murine macrophages as well as in human mast cells following stimulation of the IgE-receptor. Our results also suggest that the microsomal glutathione S-transferase 3 is essential for the formation of 15dPGJ2 conjugates. In contrast to inhibition of cyclooxygenase, which leads to blockage of the PGD2/15dPGJ2 pathway, we found that inhibition of mPGES-1 preserves PGD2 and its metabolites. Collectively, this study highlights the formation of 15dPGJ2-GS and 15dPGJ2-Cys in mouse and human immune cells, the involvement of microsomal glutathione S-transferase 3 in their biosynthesis, and their unchanged formation following inhibition of mPGES-1. The results encourage further research on their roles as bioactive lipid mediators.
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Affiliation(s)
- Julia Steinmetz-Späh
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Jianyang Liu
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Rajkumar Singh
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Maria Ekoff
- Division of Immunology and Allergy, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Sanjaykumar Boddul
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Xiao Tang
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Filip Bergqvist
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Helena Idborg
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Pascal Heitel
- Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | - Elin Rönnberg
- Division of Immunology and Allergy, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Merk
- Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | - Fredrik Wermeling
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Jesper Z. Haeggström
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Gunnar Nilsson
- Division of Immunology and Allergy, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | - Karin Larsson
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Marina Korotkova
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Per-Johan Jakobsson
- Division of Rheumatology, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden,For correspondence: Per-Johan Jakobsson
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8
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Inhibitory Effects of Mongolian Medicine Yihe-Tang on Continuous Darkness Induced Liver Steatosis in Zebrafish. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:5794655. [PMID: 35646144 PMCID: PMC9142287 DOI: 10.1155/2022/5794655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/30/2022] [Accepted: 05/06/2022] [Indexed: 01/22/2023]
Abstract
The constant dark induction (DD) causes lipid degeneration and nonalcoholic fatty liver disease (NAFLD) in zebrafish, which might be closely related to the imbalance of gut microbiota and require in-depth study. In this study, a total of 144 zebrafish were divided into four groups, including the control group, Yihe-Tang group, constant dark group, and constant dark + Yihe-Tang group, and were treated with constant darkness (except control and Yihe-Tang groups) for 21 days. The bodyweights of zebrafish were recorded after 8 d, 15 d, and 22 d. The sequencing analysis of gut microbiota, detection of liver histopathological changes, and comparison of lipid metabolism-related gene expression levels were performed on the 22nd day of the experiment. The results showed that the Yihe-Tang could inhibit the constant dark-induced increase in zebrafish weight and liver steatosis. As compared to the control group, the dark treatment could alter the composition of gut microbiota in zebrafish, increase the relative abundance of harmful bacteria, and decrease the Cetobacterium and Bacteroides to Firmicutes ratio in the intestines. The abundance of Proteobacteria in the constant dark + Yihe-Tang group was close to that in the control group and that of Fusobacteria and Cetobacterium increased, especially the Cetobacterium, which increased significantly. The constant dark treatment caused an abnormal expression of liver lipid-related genes, inhibited lipid metabolism, and promoted fat accumulation. However, the Yihe-Tang could restore these changes to the level of the control group. This study indicated that Yihe-Tang could restore the constant dark-induced liver lipid degeneration. We hypothesized that Cetobacterium could significantly inhibit steatosis.
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9
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Vodiasova EA, Meger YV, Lantushenko AO. Identification and characterization of the novel genes encoding glutathione S-transferases in Mytilus galloprovincialis. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2021; 40:100926. [PMID: 34743056 DOI: 10.1016/j.cbd.2021.100926] [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: 06/22/2021] [Revised: 10/06/2021] [Accepted: 10/18/2021] [Indexed: 11/17/2022]
Abstract
The superfamily of glutathione S-transferases (GST) plays an essential role in the xenobiotic metabolism, binding compounds to the glutathione, and is like a cell protector during the influence of various negative external factors. Nevertheless, there are very few works devoted to the investigation of these genes in marine invertebrates. Up to this time, only three classes of cytosolic GSTs for one of the leading commercial molluscs Mytilus galloprovincialis were described. We sequenced the whole transcriptome from the gill tissues and, using bioinformatic analysis, detected ten classes of glutathione S-transferases, which are expressed in the mussel M. galloprovincialis. For the first time, two subfamilies were described: mitochondrial GST (kappa class) and microsomal (MAPEG), as well as five classes of the family of cytosolic GSTs (mu, omega, rho, tau, theta). Omega and sigma GST classes might be rapidly regulated genes due to the lack of introns and this assumption was confirmed by the investigation of short-term hypoxia on M. galloprovincialis. Seven new classes of GST revealed a greater gene variety of this detoxifying enzyme in mussels than expected. The obtained nucleotide sequences are necessary for future investigations of GSTs expression in response to various external factors (pollution, oxygen starvation, infection, etc.).
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Affiliation(s)
- E A Vodiasova
- Laboratory of Marine Biodiversity and Functional Genomics, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Lenninsky ave, 38, Moscow 119991, Russia
| | - Y V Meger
- Laboratory of Molecular and Cell Biophysics, Sevastopol State University, Sevastopol 299053, Russia.
| | - A O Lantushenko
- Laboratory of Molecular and Cell Biophysics, Sevastopol State University, Sevastopol 299053, Russia
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10
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Feng C, Liu W, Chen H, Dong W, Yang J. Effect of dark environment on intestinal flora and expression of genes related to liver metabolism in zebrafish (Danio rerio). Comp Biochem Physiol C Toxicol Pharmacol 2021; 249:109100. [PMID: 34174412 DOI: 10.1016/j.cbpc.2021.109100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/19/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023]
Abstract
To explore the effects of dark environment on intestinal flora and expression of genes related to liver metabolism in zebrafish, a total of 60 zebrafish were fed for 21 days (24 h dark treatments or 14/10 h light/dark cycle), and the influence of dark environment on gut microbes and liver gene expression was studied using sequencing analysis of intestinal flora and liver. The results showed that the body weight of fish was significantly increased in the dark group than that in the control group (P < 0.05). Compared with the control group, dark environment treatment changed the composition of dominant flora, increased the abundance of unconventional bacteria and reduced probiotics in the intestine of zebrafish. Of these, the ratio of Bacteroidetes to Firmicutes in the intestine was reduced. The genome expression of the liver showed significant changes, and liver metabolites were also affected. Meanwhile, dark environment decreased gene expression associated with changes in blood glucose, lipid metabolism and immunization. Dark environment also caused liver steatosis as observed by histological study. This study shows that dark environment treatment has an important impact on liver metabolism and intestinal microbes in zebrafish.
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Affiliation(s)
- Chi Feng
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China
| | - Wuyun Liu
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China; School of Animal Science, Mongolian State University of Agriculture, Bayangol, Ulaanbaatar, Mongolia
| | - Hao Chen
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China
| | - Wu Dong
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China
| | - Jingfeng Yang
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China.
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11
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Ryan MD, Parkes AL, Corbett D, Dickie AP, Southey M, Andersen OA, Stein DB, Barbeau OR, Sanzone A, Thommes P, Barker J, Cain R, Compper C, Dejob M, Dorali A, Etheridge D, Evans S, Faulkner A, Gadouleau E, Gorman T, Haase D, Holbrow-Wilshaw M, Krulle T, Li X, Lumley C, Mertins B, Napier S, Odedra R, Papadopoulos K, Roumpelakis V, Spear K, Trimby E, Williams J, Zahn M, Keefe AD, Zhang Y, Soutter HT, Centrella PA, Clark MA, Cuozzo JW, Dumelin CE, Deng B, Hunt A, Sigel EA, Troast DM, DeJonge BLM. Discovery of Novel UDP- N-Acetylglucosamine Acyltransferase (LpxA) Inhibitors with Activity against Pseudomonas aeruginosa. J Med Chem 2021; 64:14377-14425. [PMID: 34569791 DOI: 10.1021/acs.jmedchem.1c00888] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study describes a novel series of UDP-N-acetylglucosamine acyltransferase (LpxA) inhibitors that was identified through affinity-mediated selection from a DNA-encoded compound library. The original hit was a selective inhibitor of Pseudomonas aeruginosa LpxA with no activity against Escherichia coli LpxA. The biochemical potency of the series was optimized through an X-ray crystallography-supported medicinal chemistry program, resulting in compounds with nanomolar activity against P. aeruginosa LpxA (best half-maximal inhibitory concentration (IC50) <5 nM) and cellular activity against P. aeruginosa (best minimal inhibitory concentration (MIC) of 4 μg/mL). Lack of activity against E. coli was maintained (IC50 > 20 μM and MIC > 128 μg/mL). The mode of action of analogues was confirmed through genetic analyses. As expected, compounds were active against multidrug-resistant isolates. Further optimization of pharmacokinetics is needed before efficacy studies in mouse infection models can be attempted. To our knowledge, this is the first reported LpxA inhibitor series with selective activity against P. aeruginosa.
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Affiliation(s)
- M Dominic Ryan
- X-Biotix Therapeutics, 465 Waverly Oaks Road, Waltham, Massachusetts 02452, United States
| | - Alastair L Parkes
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - David Corbett
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - Anthony P Dickie
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Michelle Southey
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Ole A Andersen
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Daniel B Stein
- Evotec SE, Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
| | - Olivier R Barbeau
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Angelo Sanzone
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Pia Thommes
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - John Barker
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Ricky Cain
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Christel Compper
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Magali Dejob
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Alain Dorali
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - Donnya Etheridge
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Sian Evans
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Adele Faulkner
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Elise Gadouleau
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Timothy Gorman
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Denes Haase
- Evotec SE, Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
| | | | - Thomas Krulle
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Xianfu Li
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Christopher Lumley
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Barbara Mertins
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Spencer Napier
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Rajesh Odedra
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - Kostas Papadopoulos
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | | | - Kate Spear
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Emily Trimby
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - Jennifer Williams
- Evotec UK, Anti-infectives, Block 23F, Alderley Park, Cheshire SK10 4TG, U.K
| | - Michael Zahn
- Evotec, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, U.K
| | - Anthony D Keefe
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Ying Zhang
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Holly T Soutter
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Paolo A Centrella
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Matthew A Clark
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - John W Cuozzo
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | | | - Boer Deng
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Avery Hunt
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Eric A Sigel
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Dawn M Troast
- X-Chem, 100 Beaver Street, Waltham, Massachusetts 02453, United States
| | - Boudewijn L M DeJonge
- X-Biotix Therapeutics, 465 Waverly Oaks Road, Waltham, Massachusetts 02452, United States
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12
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Di Micco S, Terracciano S, Ruggiero D, Potenza M, Vaccaro MC, Fischer K, Werz O, Bruno I, Bifulco G. Identification of 2-(thiophen-2-yl)acetic Acid-Based Lead Compound for mPGES-1 Inhibition. Front Chem 2021; 9:676631. [PMID: 34046398 PMCID: PMC8144515 DOI: 10.3389/fchem.2021.676631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/07/2021] [Indexed: 11/13/2022] Open
Abstract
We report the implementation of our in silico/synthesis pipeline by targeting the glutathione-dependent enzyme mPGES-1, a valuable macromolecular target in both cancer therapy and inflammation therapy. Specifically, by using a virtual fragment screening approach of aromatic bromides, straightforwardly modifiable by the Suzuki-Miyaura reaction, we identified 3-phenylpropanoic acid and 2-(thiophen-2-yl)acetic acid to be suitable chemical platforms to develop tighter mPGES-1 inhibitors. Among these, compounds 1c and 2c showed selective inhibitory activity against mPGES-1 in the low micromolar range in accordance with molecular modeling calculations. Moreover, 1c and 2c exhibited interesting IC50 values on A549 cell lines compared to CAY10526, selected as reference compound. The most promising compound 2c induced the cycle arrest in the G0/G1 phase at 24 h of exposure, whereas at 48 and 72 h, it caused an increase of subG0/G1 fraction, suggesting an apoptosis/necrosis effect.
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Affiliation(s)
- Simone Di Micco
- European Biomedical Research Institute of Salerno (EBRIS), Salerno, Italy
| | | | - Dafne Ruggiero
- Dipartimento di Farmacia, University degli Studi di Salerno, Fisciano, Italy
| | - Marianna Potenza
- Dipartimento di Farmacia, University degli Studi di Salerno, Fisciano, Italy
| | - Maria C Vaccaro
- Dipartimento di Farmacia, University degli Studi di Salerno, Fisciano, Italy
| | - Katrin Fischer
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena, Germany
| | - Oliver Werz
- Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena, Germany
| | - Ines Bruno
- Dipartimento di Farmacia, University degli Studi di Salerno, Fisciano, Italy
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, University degli Studi di Salerno, Fisciano, Italy
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13
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Zhao G, Zhao W, Cui X, Xu B, Liu Q, Li H, Guo X. Identification of an MGST2 gene and analysis of its function in antioxidant processes in Apis cerana cerana. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2021; 106:e21770. [PMID: 33660279 DOI: 10.1002/arch.21770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/03/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
MGST2 is a member of the MAPEG superfamily, which participates in LTC4 synthesis and plays important roles in the regulation of the oxidative stress pathway and some diseases. Here, we isolated a previously uncharacterized gene in Apis cerana cerana named AccMGST2 by reverse transcription-polymerase chain reaction. The biological characteristics of AccMGST2 were analyzed by bioinformatics. The amino acid sequence similarity between AccMGST2 and AmMGST2 of Apis mellifera reached 96.08%. The expression characteristics of AccMGST2 were explored in several tissues. The quantitative real-time polymerase chain reaction results showed that the AccMGST2 gene was highly expressed in the head and muscle and that AccMGST2 expression responded to oxidative stress caused by different abiotic stresses. AccMGST2 was silenced using RNA interference, which decreased the expression levels of some MAPK and antioxidant genes. Therefore, we conclude that AccMGST2 is involved in the regulation of oxidative stress in A. cerana cerana.
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Affiliation(s)
- Guangdong Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, China
| | - Wenchun Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, China
| | - Xuepei Cui
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, China
| | - Qingxin Liu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, China
| | - Han Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, China
| | - Xingqi Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, China
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14
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Thulasingam M, Haeggström JZ. Integral Membrane Enzymes in Eicosanoid Metabolism: Structures, Mechanisms and Inhibitor Design. J Mol Biol 2020; 432:4999-5022. [PMID: 32745470 DOI: 10.1016/j.jmb.2020.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 12/14/2022]
Abstract
Eicosanoids are potent lipid mediators involved in central physiological processes such as hemostasis, renal function and parturition. When formed in excess, eicosanoids become critical players in a range of pathological conditions, in particular pain, fever, arthritis, asthma, cardiovascular disease and cancer. Eicosanoids are generated via oxidative metabolism of arachidonic acid along the cyclooxygenase (COX) and lipoxygenase (LOX) pathways. Specific lipid species are formed downstream of COX and LOX by specialized synthases, some of which reside on the nuclear and endoplasmic reticulum, including mPGES-1, FLAP, LTC4 synthase, and MGST2. These integral membrane proteins are members of the family "membrane-associated proteins in eicosanoid and glutathione metabolism" (MAPEG). Here we focus on this enzyme family, which encompasses six human members typically catalyzing glutathione dependent transformations of lipophilic substrates. Enzymes of this family have evolved to combat the topographical challenge and unfavorable energetics of bringing together two chemically different substrates, from cytosol and lipid bilayer, for catalysis within a membrane environment. Thus, structural understanding of these enzymes are of utmost importance to unravel their molecular mechanisms, mode of substrate entry and product release, in order to facilitate novel drug design against severe human diseases.
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Affiliation(s)
- Madhuranayaki Thulasingam
- Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
| | - Jesper Z Haeggström
- Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
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15
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Zacchi FL, Dos Reis IMM, Siebert MN, Mattos JJ, Flores-Nunes F, Toledo-Silva GD, Piazza CE, Bícego MC, Taniguchi S, Bainy ACD. Differential responses in the biotransformation systems of the oyster Crassostrea gasar (Adanson, 1757) elicited by pyrene and fluorene: molecular, biochemical and histological approach - Part I. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 216:105318. [PMID: 31590133 DOI: 10.1016/j.aquatox.2019.105318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the main contaminants in aquatic environments. PAHs can affect organisms due to their carcinogenic, mutagenic and/or teratogenic characteristics. Depending on the PAHs, concentration, and period of exposure, biological damage can occur leading to histopathologic alterations. This study aimed to evaluate the molecular, biochemical and histological responses of the oyster Crassostrea gasar exposed to pyrene (0.25 and 0.5 μM) and fluorene (0.6 and 1.2 μM), after exposure for 24 and 96 h. Concentrations of both PAHs were quantified in the water and in oyster tissues. Transcript levels of phase I (CYP3475C1, CYP2-like, CYP2AU1 and CYP356A) and phase II (GSTO-like, MGST-like and SULT-like) biotransformation-related genes and the activities of ethoxyresorufin-O-deethylase (EROD), total and microsomal glutathione S-transferase (GST and MGST) were evaluated in the gills. Also, histological changes and localization of mRNA transcripts CYP2AU1 in gills, mantle, and digestive diverticula were evaluated. Both PAHs accumulated in oyster tissues. Pyrene half-life in water was significantly lower than fluorene. Transcript levels of all genes were higher in oysters exposed to of pyrene 0.5 μM (24 h). Only CYP2AU1 gene was up-regulated by fluorene exposure. EROD and MGST activities were higher in oysters exposed to pyrene. Tubular atrophy in the digestive diverticula and an increased number of mucous cells in the mantle were observed in oysters exposed to pyrene. CYP2AU1 transcripts were observed in different tissues of pyrene-exposed oysters. A significant correlation was observed between tubular atrophy and the CYP2AU1 hybridization signal in oysters exposed to pyrene, suggesting the sensibility of the species to this PAH. These results suggest an important role of biotransformation-related genes and enzymes and tissue alterations associated to pyrene metabolism but not fluorene. In addition, it reinforces the role of CYP2AU1 gene in the biotransformation process of PAHs in the gills of C. gasar.
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Affiliation(s)
- Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Isis Mayna Martins Dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme de Toledo-Silva
- Bioinformatics Laboratory, Cell biology, Embryology and Genetics Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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16
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Kammerscheit X, Chauvat F, Cassier-Chauvat C. From Cyanobacteria to Human, MAPEG-Type Glutathione-S-Transferases Operate in Cell Tolerance to Heat, Cold, and Lipid Peroxidation. Front Microbiol 2019; 10:2248. [PMID: 31681188 PMCID: PMC6798054 DOI: 10.3389/fmicb.2019.02248] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/13/2019] [Indexed: 11/18/2022] Open
Abstract
The MAPEG2 sub-family of glutathione-S-transferase proteins (GST) has been poorly investigated in vivo, even in prokaryotes such as cyanobacteria the organisms that are regarded as having developed glutathione-dependent enzymes to protect themselves against the reactive oxygen species (ROS) often produced by their powerful photosynthesis. We report the first in vivo analysis of a cyanobacterial MAPEG2-like protein (Sll1147) in the model cyanobacterium Synechocystis PCC 6803. While Sll1147 is dispensable to cell growth in standard photo-autotrophic conditions, it plays an important role in the resistance to heat and cold, and to n-tertbutyl hydroperoxide (n-tBOOH) that induces lipid peroxidation. These findings suggest that Sll1147 could be involved in membrane fluidity, which is critical for photosynthesis. Attesting its sensitivity to these stresses, the Δsll1147 mutant lacking Sll1147 challenged by heat, cold, or n-tBOOH undergoes transient accumulation of peroxidized lipids and then of reduced and oxidized glutathione. These results are welcome because little is known concerning the signaling and/or protection mechanisms used by cyanobacteria to cope with heat and cold, two inevitable environmental stresses that limit their growth, and thus their production of biomass for our food chain and of biotechnologically interesting chemicals. Also interestingly, the decreased resistance to heat, cold and n-tBOOH of the Δsll1147 mutant could be rescued back to normal (wild-type) levels upon the expression of synthetic MAPEG2-encoding human genes adapted to the cyanobacterial codon usage. These synthetic hmGST2 and hmGST3 genes were also able to increase the Escherichia coli tolerance to heat and n-tBOOH. Collectively, these finding indicate that the activity of the MAPEG2 proteins have been conserved, at least in part, during evolution from (cyano)bacteria to human.
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Affiliation(s)
| | - Franck Chauvat
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, University of Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Corinne Cassier-Chauvat
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, University of Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
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17
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Abstract
Horizontal gene transfer (HGT) is the movement of genetic material between organisms other than by reproduction, which plays an important role in bacterial evolution. Often, mobile genetic elements such as plasmids are involved in HGT. In this study, we present phylogenetic, biogeographic, and functional analyses of a previously unrecognized plasmid that is found with 100% sequence identity in multiple distinct bacterial genera obtained from geographically separated locations. This is the only known instance where actual nucleotide identity and not only high synteny has been described for plasmids in environmental organisms. Furthermore, we provide experimental evidence for the potential of this plasmid to be transmitted across bacterial orders, thereby increasing our understanding of evolution and microbial niche adaptation in the environment. Horizontal gene transfer (HGT) plays an important role in bacterial evolution and serves as a driving force for bacterial diversity and versatility. HGT events often involve mobile genetic elements like plasmids, which can promote their own dissemination by associating with adaptive traits in the gene pool of the so-called mobilome. Novel traits that evolve through HGT can therefore lead to the exploitation of new ecological niches, prompting an adaptive radiation of bacterial species. In this study, we present phylogenetic, biogeographic, and functional analyses of a previously unrecognized RepL-type plasmid found in diverse members of the marine Roseobacter group across the globe. Noteworthy, 100% identical plasmids were detected in phylogenetically and geographically distant bacteria, revealing a so-far overlooked, but environmentally highly relevant vector for HGT. The genomic and functional characterization of this plasmid showed a completely conserved backbone dedicated to replication, stability, and mobilization as well as an interchangeable gene cassette with highly diverse, but recurring motifs. The majority of the latter appear to be involved in mechanisms coping with toxins and/or pollutants in the marine environment. Furthermore, we provide experimental evidence that the plasmid has the potential to be transmitted across bacterial orders, thereby increasing our understanding of evolution and microbial niche adaptation in the environment.
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18
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Novel benzoxanthene lignans that favorably modulate lipid mediator biosynthesis: A promising pharmacological strategy for anti-inflammatory therapy. Biochem Pharmacol 2019; 165:263-274. [PMID: 30836057 DOI: 10.1016/j.bcp.2019.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 03/01/2019] [Indexed: 02/08/2023]
Abstract
Lipid mediators (LM) encompass pro-inflammatory prostaglandins (PG) and leukotrienes (LT) but also specialized pro-resolving mediators (SPM) which display pivotal bioactivities in health and disease. Pharmacological intervention with inflammatory disorders such as osteoarthritis and rheumatoid arthritis commonly employs anti-inflammatory drugs that can suppress PG and LT formation, which however, possess limited effectiveness and side effects. Here, we report on the discovery and characterization of the two novel benzoxanthene lignans 1 and 2 that modulate select LM biosynthetic enzymes enabling the switch from pro-inflammatory LT to SPM biosynthesis as potential pharmacological strategy to intervene with inflammation. In cell-free assays, compound 1 and 2 inhibit microsomal prostaglandin E2 synthase-1 and leukotriene C4 synthase (IC50 ∼ 0.6-3.4 µM) and potently interfere with 5-lipoxygenase (5-LOX), the key enzyme in LT biosynthesis (IC50 = 0.04 and 0.09 µM). In human neutrophils, monocytes and M1 and M2 macrophages, compound 1 and 2 efficiently suppress LT biosynthesis (IC50 < 1 µM), accompanied by elevation of 15-LOX-derived LM including SPM. In zymosan-induced murine peritonitis, compound 1 and 2 ameliorated self-limited inflammation along with suppression of early LT formation and elevation of subsequent SPM biosynthesis in vivo. Together, these novel benzoxanthene lignans promote the LM class switch from pro-inflammatory towards pro-resolving LM to terminate inflammation, suggesting their suitability as novel leads for pharmacotherapy of arthritis and related inflammatory disorders.
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19
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Saeki K, Yokomizo T. Identification, signaling, and functions of LTB 4 receptors. Semin Immunol 2018; 33:30-36. [PMID: 29042026 DOI: 10.1016/j.smim.2017.07.010] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 05/02/2017] [Accepted: 07/26/2017] [Indexed: 10/18/2022]
Abstract
Leukotriene B4 (LTB4), a lipid mediator produced from arachidonic acid, is a chemoattractant for inflammatory leukocytes. We identified two receptors for LTB4, the high-affinity receptor BLT1 and the low-affinity receptor BLT2. BLT1 is expressed in various subsets of leukocytes, and analyses of BLT1-deficient mice revealed that the LTB4/BLT1 axis enhances leukocyte recruitment to infected sites, and is involved in the elimination of pathogens. Hyperactivation of the LTB4/BLT1 axis induces acute and chronic inflammation, resulting in various inflammatory diseases. BLT2 was originally identified as a low-affinity receptor for LTB4, and we later identified 12(S)-hydroxy-5Z,8E,10E-heptadecatrienoic acid (12-HHT) as a high-affinity ligand for BLT2. BLT2 is highly expressed in epithelial cells in various tissues including intestine and skin. Large quantities of 12-HHT are produced by activated platelets during skin injury, and activation of BLT2 on epidermal keratinocytes accelerates skin wound healing by enhancing cell migration. BLT2 signaling also enhances cell-cell junctions, protectes against transepidermal water loss, and preventes entry of environmental substances into the body.
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Affiliation(s)
- Kazuko Saeki
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
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20
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Subramanian BC, Majumdar R, Parent CA. The role of the LTB 4-BLT1 axis in chemotactic gradient sensing and directed leukocyte migration. Semin Immunol 2018; 33:16-29. [PMID: 29042024 DOI: 10.1016/j.smim.2017.07.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 06/07/2017] [Accepted: 07/13/2017] [Indexed: 12/11/2022]
Abstract
Directed leukocyte migration is a hallmark of inflammatory immune responses. Leukotrienes are derived from arachidonic acid and represent a class of potent lipid mediators of leukocyte migration. In this review, we summarize the essential steps leading to the production of LTB4 in leukocytes. We discuss the recent findings on the exosomal packaging and transport of LTB4 in the context of chemotactic gradients formation and regulation of leukocyte recruitment. We also discuss the dynamic roles of the LTB4 receptors, BLT1 and BLT2, in mediating chemotactic signaling in leukocytes and contrast them to other structurally related leukotrienes that bind to distinct GPCRs. Finally, we highlight the specific roles of the LTB4-BLT1 axis in mediating signal-relay between chemotaxing neutrophils and its potential contribution to a wide variety of inflammatory conditions including tumor progression and metastasis, where LTB4 is emerging as a key signaling component.
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Affiliation(s)
- Bhagawat C Subramanian
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, MD 20892, United States.
| | - Ritankar Majumdar
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, MD 20892, United States; Department of Pharmacology, University of Michigan School of Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, United States.
| | - Carole A Parent
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, MD 20892, United States; Department of Pharmacology, University of Michigan School of Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, United States.
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21
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Identification of multi-target inhibitors of leukotriene and prostaglandin E2 biosynthesis by structural tuning of the FLAP inhibitor BRP-7. Eur J Med Chem 2018; 150:876-899. [DOI: 10.1016/j.ejmech.2018.03.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 03/14/2018] [Accepted: 03/15/2018] [Indexed: 11/19/2022]
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22
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Microsomal glutathione transferase 2 modulates LTC4 synthesis and ROS production in Apostichopus japonicus. Mol Immunol 2017; 91:114-122. [DOI: 10.1016/j.molimm.2017.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/31/2017] [Accepted: 09/01/2017] [Indexed: 02/06/2023]
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23
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Garscha U, Romp E, Pace S, Rossi A, Temml V, Schuster D, König S, Gerstmeier J, Liening S, Werner M, Atze H, Wittmann S, Weinigel C, Rummler S, Scriba GK, Sautebin L, Werz O. Pharmacological profile and efficiency in vivo of diflapolin, the first dual inhibitor of 5-lipoxygenase-activating protein and soluble epoxide hydrolase. Sci Rep 2017; 7:9398. [PMID: 28839250 PMCID: PMC5571211 DOI: 10.1038/s41598-017-09795-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/31/2017] [Indexed: 12/31/2022] Open
Abstract
Arachidonic acid (AA) is metabolized to diverse bioactive lipid mediators. Whereas the 5-lipoxygenase-activating protein (FLAP) facilitates AA conversion by 5-lipoxygenase (5-LOX) to pro-inflammatory leukotrienes (LTs), the soluble epoxide hydrolase (sEH) degrades anti-inflammatory epoxyeicosatrienoic acids (EETs). Accordingly, dual FLAP/sEH inhibition might be advantageous drugs for intervention of inflammation. We present the in vivo pharmacological profile and efficiency of N-[4-(benzothiazol-2-ylmethoxy)-2-methylphenyl]-N′-(3,4-dichlorophenyl)urea (diflapolin) that dually targets FLAP and sEH. Diflapolin inhibited 5-LOX product formation in intact human monocytes and neutrophils with IC50 = 30 and 170 nM, respectively, and suppressed the activity of isolated sEH (IC50 = 20 nM). Characteristic for FLAP inhibitors, diflapolin (I) failed to inhibit isolated 5-LOX, (II) blocked 5-LOX product formation in HEK cells only when 5-LOX/FLAP was co-expressed, (III) lost potency in intact cells when exogenous AA was supplied, and (IV) prevented 5-LOX/FLAP complex assembly in leukocytes. Diflapolin showed target specificity, as other enzymes related to AA metabolism (i.e., COX1/2, 12/15-LOX, LTA4H, LTC4S, mPGES1, and cPLA2) were not inhibited. In the zymosan-induced mouse peritonitis model, diflapolin impaired vascular permeability, inhibited cysteinyl-LTs and LTB4 formation, and suppressed neutrophil infiltration. Diflapolin is a highly active dual FLAP/sEH inhibitor in vitro and in vivo with target specificity to treat inflammation-related diseases.
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Affiliation(s)
- Ulrike Garscha
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany.
| | - Erik Romp
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Simona Pace
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Antonietta Rossi
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131, Naples, Italy
| | - Veronika Temml
- Department of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, A-6020, Innsbruck, Austria
| | - Daniela Schuster
- Department of Pharmacy / Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, A-6020, Innsbruck, Austria
| | - Stefanie König
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Jana Gerstmeier
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Stefanie Liening
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Markus Werner
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Heiner Atze
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Sandra Wittmann
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, 60438, Frankfurt, Germany
| | - Christina Weinigel
- Institute of Transfusion Medicine, University Hospital Jena, 07743, Jena, Germany
| | - Silke Rummler
- Institute of Transfusion Medicine, University Hospital Jena, 07743, Jena, Germany
| | - Gerhard K Scriba
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
| | - Lidia Sautebin
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131, Naples, Italy
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, D-07743, Jena, Germany
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24
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Psarra A, Nikolaou A, Kokotou MG, Limnios D, Kokotos G. Microsomal prostaglandin E2 synthase-1 inhibitors: a patent review. Expert Opin Ther Pat 2017. [DOI: 10.1080/13543776.2017.1344218] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Anastasia Psarra
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Aikaterini Nikolaou
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Maroula G Kokotou
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitris Limnios
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
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25
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Shimoji M, Figueroa RA, Neve E, Maksel D, Imreh G, Morgenstern R, Hallberg E. Molecular basis for the dual subcellular distribution of microsomal glutathione transferase 1. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:238-244. [DOI: 10.1016/j.bbamem.2016.11.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 11/11/2016] [Accepted: 11/28/2016] [Indexed: 02/07/2023]
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26
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Zacchi FL, de Lima D, Flores-Nunes F, Mattos JJ, Lüchmann KH, de Miranda Gomes CHA, Bícego MC, Taniguchi S, Sasaki ST, Dias Bainy AC. Transcriptional changes in oysters Crassostrea brasiliana exposed to phenanthrene at different salinities. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 183:94-103. [PMID: 28040644 DOI: 10.1016/j.aquatox.2016.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/15/2016] [Accepted: 12/17/2016] [Indexed: 06/06/2023]
Abstract
Euryhaline animals from estuaries, such as the oyster Crassostrea brasiliana, show physiological mechanisms of adaptation to tolerate salinity changes. These ecosystems receive constant input of xenobiotics from urban areas, including polycyclic aromatic hydrocarbons (PAHs), such as phenanthrene (PHE). In order to understand the influence of salinity on the molecular responses of C. brasiliana exposed to PHE, oysters were acclimatized to different salinities (35, 25 and 10) for 15days and then exposed to 100μgL-1 PHE for 24h and 96h. Control groups were kept at the same salinities without PHE. Oysters were sampled for chemical analysis and the gills were excised for mRNA quantification by qPCR. Transcript levels of different genes were measured, including some involved in oxidative stress pathways, phases I and II of the xenobiotic biotransformation systems, amino acid metabolism, fatty acid metabolism and aryl hydrocarbon receptor nuclear translocator putative gene. Higher transcript levels of Sulfotransferase-like gene (SULT-like) were observed in oysters exposed to PHE at salinity 10 compared to control (24h and 96h); cytochrome P450 isoforms (CYP2AU1, CYP2-like1) were more elevated in oysters exposed for 24h and CYP2-like2 after 96h of oysters exposed to PHE at salinity 10 compared to control. These results are probably associated to an enhanced Phase I biotransformation activity required for PHE detoxification under hyposmotic stress. Higher transcript levels of CAT-like, SOD-like, GSTm-like (96h) and GSTΩ-like (24h) in oysters kept at salinity 10 compared to organisms at salinities 25 and/or 35 are possibly related to enhaced ROS production. The transcription of these genes were not affected by PHE exposure. Amino acid metabolism-related genes (GAD-like (24h), GLYT-like, ARG-like (96h) and TAUT-like at 24h and 96h) also showed different transcription levels among organisms exposed to different salinities, suggesting their important role for oyster salinity adaptation, which is not affected by exposure to these levels of PHE.
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Affiliation(s)
- Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Daína de Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Karim Hahn Lüchmann
- Laboratory of Biochemistry and Molecular Biology - LBBM, Fishery Engineering Department, Santa Catarina State University, Laguna, Brazil
| | | | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Silvio Tarou Sasaki
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University Santa Catarina, Florianópolis, Brazil.
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27
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Werz O, Gerstmeier J, Garscha U. Novel leukotriene biosynthesis inhibitors (2012-2016) as anti-inflammatory agents. Expert Opin Ther Pat 2017; 27:607-620. [DOI: 10.1080/13543776.2017.1276568] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena, Germany
| | - Jana Gerstmeier
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena, Germany
| | - Ulrike Garscha
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena, Germany
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28
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Cárcamo JG, Aguilar MN, Carreño CF, Vera T, Arias-Darraz L, Figueroa JE, Romero AP, Alvarez M, Yañez AJ. Consecutive emamectin benzoate and deltamethrin treatments affect the expressions and activities of detoxification enzymes in the rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol C Toxicol Pharmacol 2017; 191:129-137. [PMID: 27765649 DOI: 10.1016/j.cbpc.2016.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/13/2016] [Accepted: 10/13/2016] [Indexed: 01/12/2023]
Abstract
Rainbow trout (Oncorhynchus mykiss) subjected to three consecutive, alternating treatments with emamectin benzoate (EMB) and deltamethrin (DM) during outbreaks of Caligus rogercresseyi in a farm located in southern Chile (Hornopiren, Chiloé), were studied to determine the effects of these treatments on the protein and enzymatic activity levels of cytochrome P450 1A (CYP1A), flavin-containing monooxygenase (FMO) and glutathione S-transferase (GST) in different tissues. Consecutive and alternating EMB/DM treatments resulted in a 10-fold increase and 3-fold decrease of CYP1A protein levels in the intestine and gills, respectively. Notably, CYP1A activity levels decreased in most of the analyzed tissues. FMO protein and activity levels markedly increased in the kidney and the intestine. GST was up-regulated in all tissues, either as protein or enzyme activity. When comparing consecutive EMB/DM treatments against previous studies of EMB treatment alone, CYP1A activity levels were similarly diminished, except in muscle. Likewise, FMO activity levels were increased in most of the analyzed tissues, particularly in the muscle, kidney, and intestine. The increases observed for GST were essentially unchanged between consecutive EMB/DM and EMB only treatments. These results indicate that consecutive EMB/DM treatments in rainbow trout induce the expression and activity of FMO and GST enzymes and decrease CYP1A activity. These altered activities of detoxification enzymes could generate imbalances in metabolic processes, synthesis, degradation of hormones and complications associated with drug interactions. It is especially important when analyzing possible effects of consecutive antiparasitic treatments on withholding periods and salmon farming yields.
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Affiliation(s)
- Juan Guillermo Cárcamo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile.
| | - Marcelo N Aguilar
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Constanza F Carreño
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Tamara Vera
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile
| | - Luis Arias-Darraz
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Jaime E Figueroa
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile
| | - Alex P Romero
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile; Laboratorio de Biotecnología y Patología Acuática, Instituto de Patología Animal, Universidad Austral de Chile, Valdivia, Chile
| | - Marco Alvarez
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile; Laboratorio de Biología Celular y Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Quillota 980, Viña del Mar, Chile
| | - Alejandro J Yañez
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Chile
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Garscha U, Voelker S, Pace S, Gerstmeier J, Emini B, Liening S, Rossi A, Weinigel C, Rummler S, Schubert US, Scriba GKE, Çelikoğlu E, Çalışkan B, Banoglu E, Sautebin L, Werz O. BRP-187: A potent inhibitor of leukotriene biosynthesis that acts through impeding the dynamic 5-lipoxygenase/5-lipoxygenase-activating protein (FLAP) complex assembly. Biochem Pharmacol 2016; 119:17-26. [PMID: 27592027 DOI: 10.1016/j.bcp.2016.08.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 08/29/2016] [Indexed: 11/19/2022]
Abstract
The pro-inflammatory leukotrienes (LTs) are formed from arachidonic acid (AA) in activated leukocytes, where 5-lipoxygenase (5-LO) translocates to the nuclear envelope to assemble a functional complex with the integral nuclear membrane protein 5-LO-activating protein (FLAP). FLAP, a MAPEG family member, facilitates AA transfer to 5-LO for efficient conversion, and LT biosynthesis critically depends on FLAP. Here we show that the novel LT biosynthesis inhibitor BRP-187 prevents the 5-LO/FLAP interaction at the nuclear envelope of human leukocytes without blocking 5-LO nuclear redistribution. BRP-187 inhibited 5-LO product formation in human monocytes and polymorphonuclear leukocytes stimulated by lipopolysaccharide plus N-formyl-methionyl-leucyl-phenylalanine (IC50=7-10nM), and upon activation by ionophore A23187 (IC50=10-60nM). Excess of exogenous AA markedly impaired the potency of BRP-187. Direct 5-LO inhibition in cell-free assays was evident only at >35-fold higher concentrations, which was reversible and not improved under reducing conditions. BRP-187 prevented A23187-induced 5-LO/FLAP complex assembly in leukocytes but failed to block 5-LO nuclear translocation, features that were shared with the FLAP inhibitor MK886. Whereas AA release, cyclooxygenases and related LOs were unaffected, BRP-187 also potently inhibited microsomal prostaglandin E2 synthase-1 (IC50=0.2μM), another MAPEG member. In vivo, BRP-187 (10mg/kg) exhibited significant effectiveness in zymosan-induced murine peritonitis, suppressing LT levels in peritoneal exudates as well as vascular permeability and neutrophil infiltration. Together, BRP-187 potently inhibits LT biosynthesis in vitro and in vivo, which seemingly is caused by preventing the 5-LO/FLAP complex assembly and warrants further preclinical evaluation.
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Affiliation(s)
- Ulrike Garscha
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Susanna Voelker
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Simona Pace
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Jana Gerstmeier
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Besa Emini
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Stefanie Liening
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Antonietta Rossi
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy.
| | - Christina Weinigel
- Institute of Transfusion Medicine, University Hospital Jena, 07743 Jena, Germany.
| | - Silke Rummler
- Institute of Transfusion Medicine, University Hospital Jena, 07743 Jena, Germany.
| | - Ulrich S Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany; Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, D-07743 Jena, Germany.
| | - Gerhard K E Scriba
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany.
| | - Erşan Çelikoğlu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Etiler, 06330 Yenimahalle, Ankara, Turkey.
| | - Burcu Çalışkan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Etiler, 06330 Yenimahalle, Ankara, Turkey.
| | - Erden Banoglu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Etiler, 06330 Yenimahalle, Ankara, Turkey.
| | - Lidia Sautebin
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy.
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
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Liening S, Scriba GK, Rummler S, Weinigel C, Kleinschmidt TK, Haeggström JZ, Werz O, Garscha U. Development of smart cell-free and cell-based assay systems for investigation of leukotriene C 4 synthase activity and evaluation of inhibitors. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:1605-1613. [PMID: 27477678 DOI: 10.1016/j.bbalip.2016.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 07/25/2016] [Accepted: 07/27/2016] [Indexed: 11/18/2022]
Abstract
Cysteinyl leukotrienes (cys-LTs) cause bronchoconstriction in anaphylaxis and asthma. They are formed by 5-lipoxygenase (5-LOX) from arachidonic acid (AA) yielding the unstable leukotriene A4 (LTA4) that is subsequently conjugated with glutathione (GSH) by LTC4 synthase (LTC4S). Cys-LT receptor antagonists and LTC4S inhibitors have been developed, but only the former have reached the market. High structural homology to related enzymes and lack of convenient test systems due to instability of added LTA4 have hampered the development of LTC4S inhibitors. We present smart cell-free and cell-based assay systems based on in situ-generated LTA4 that allow studying LTC4S activity and investigating LTC4S inhibitors. Co-incubations of microsomes from HEK293 cells expressing LTC4S with isolated 5-LOX efficiently converted exogenous AA to LTC4 (~1.3μg/200μg protein). Stimulation of HEK293 cells co-expressing 5-LOX and LTC4S with Ca2+-ionophore A23187 and 20μM AA resulted in strong LTC4 formation (~250ng/106 cells). MK-886, a well-known 5-LOX activating protein (FLAP) inhibitor that also acts on LTC4S, consistently inhibited LTC4 formation in all assay types (IC50=3.1-3.5μM) and we successfully confirmed TK04a as potent LTC4S inhibitor in these assay systems (IC50=17 and 300nM, respectively). We demonstrated transcellular LTC4 biosynthesis between neutrophils or 5-LOX-expressing HEK293 cells that produce LTA4 from AA and HEK293 cells expressing LTC4S that transform LTA4 to LTC4. In conclusion, our assay approaches are advantageous as the substrate LTA4 is generated in situ and are suitable for studying enzymatic functionality of LTC4S including site-directed mutations and evaluation of LTC4S inhibitors.
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Affiliation(s)
- Stefanie Liening
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany
| | - Gerhard K Scriba
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany
| | - Silke Rummler
- Institute of Transfusion Medicine, Jena University Hospital, Jena, Germany
| | - Christina Weinigel
- Institute of Transfusion Medicine, Jena University Hospital, Jena, Germany
| | - Thea K Kleinschmidt
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jesper Z Haeggström
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Oliver Werz
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany
| | - Ulrike Garscha
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany.
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A dynamic Asp-Arg interaction is essential for catalysis in microsomal prostaglandin E2 synthase. Proc Natl Acad Sci U S A 2016; 113:972-7. [PMID: 26755582 DOI: 10.1073/pnas.1522891113] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Microsomal prostaglandin E2 synthase type 1 (mPGES-1) is responsible for the formation of the potent lipid mediator prostaglandin E2 under proinflammatory conditions, and this enzyme has received considerable attention as a drug target. Recently, a high-resolution crystal structure of human mPGES-1 was presented, with Ser-127 being proposed as the hydrogen-bond donor stabilizing thiolate anion formation within the cofactor, glutathione (GSH). We have combined site-directed mutagenesis and activity assays with a structural dynamics analysis to probe the functional roles of such putative catalytic residues. We found that Ser-127 is not required for activity, whereas an interaction between Arg-126 and Asp-49 is essential for catalysis. We postulate that both residues, in addition to a crystallographic water, serve critical roles within the enzymatic mechanism. After characterizing the size or charge conservative mutations Arg-126-Gln, Asp-49-Asn, and Arg-126-Lys, we inferred that a crystallographic water acts as a general base during GSH thiolate formation, stabilized by interaction with Arg-126, which is itself modulated by its respective interaction with Asp-49. We subsequently found hidden conformational ensembles within the crystal structure that correlate well with our biochemical data. The resulting contact signaling network connects Asp-49 to distal residues involved in GSH binding and is ligand dependent. Our work has broad implications for development of efficient mPGES-1 inhibitors, potential anti-inflammatory and anticancer agents.
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Hattinger CM, Serra M. Role of pharmacogenetics of drug-metabolizing enzymes in treating osteosarcoma. Expert Opin Drug Metab Toxicol 2015; 11:1449-63. [PMID: 26095223 DOI: 10.1517/17425255.2015.1060220] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Drug-metabolizing enzymes (DMEs) biotransform several toxins and xenobiotics in both tumor and normal cells, resulting in either their detoxification or their activation. Since DMEs also metabolize several chemotherapeutic drugs, they can significantly influence tumor response to chemotherapy and susceptibility of normal tissues to collateral toxicity of anticancer treatments. AREAS COVERED This review discusses the pharmacogenetics of DMEs involved in the metabolism of drugs which constitute the backbone of osteosarcoma (OS) chemotherapy, highlighting what is presently known for this tumor and their possible impact on the modulation of future treatment approaches. EXPERT OPINION Achieving further insight into pharmacogenetic markers and biological determinants related to treatment response in OS may ultimately lead to individualized treatment regimens, based on a combination of genotype and tumor characteristics of each patient.
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Affiliation(s)
- Claudia Maria Hattinger
- a Orthopaedic Rizzoli Institute, Laboratory of Experimental Oncology, Pharmacogenomics and Pharmacogenetics Research Unit , Via di Barbiano 1/10, I-40136 Bologna, Italy +390 516 366 762 ; +390 516 366 763 ;
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Chen Y, Liu H, Xu S, Wang T, Li W. Targeting microsomal prostaglandin E2synthase-1 (mPGES-1): the development of inhibitors as an alternative to non-steroidal anti-inflammatory drugs (NSAIDs). MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00278h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AA cascade and several key residues in the 3D structure of mPGES-1.
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Affiliation(s)
- Yuqing Chen
- Department of Medicinal Chemistry, School of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing
- China
| | | | - Shuang Xu
- Department of Medicinal Chemistry, School of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing
- China
| | - Tianlin Wang
- Department of Medicinal Chemistry, School of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing
- China
| | - Wei Li
- Department of Medicinal Chemistry, School of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing
- China
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Rådmark O, Werz O, Steinhilber D, Samuelsson B. 5-Lipoxygenase, a key enzyme for leukotriene biosynthesis in health and disease. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1851:331-9. [PMID: 25152163 DOI: 10.1016/j.bbalip.2014.08.012] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 12/21/2022]
Abstract
5-Lipoxygenase (5-LOX) catalyzes two steps in the biosynthesis of leukotrienes (LTs), lipid mediators of inflammation derived from arachidonic acid. In this review we focus on 5-LOX biochemistry including 5-LOX interacting proteins and regulation of enzyme activity. LTs function in normal host defense, and have roles in many disease states where acute or chronic inflammation is part of the pathophysiology, as briefly summarized at the end of this chapter. This article is part of a Special Issue entitled "Oxygenated metabolism of PUFA: analysis and biological relevance".
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Affiliation(s)
- Olof Rådmark
- Dept of Medical Biochemistry and Biophysics, Div. of Chemistry II, Karolinska Institutet, Sweden
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, University Jena, Germany
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Germany
| | - Bengt Samuelsson
- Dept of Medical Biochemistry and Biophysics, Div. of Chemistry II, Karolinska Institutet, Sweden
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35
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Gerstmeier J, Weinigel C, Barz D, Werz O, Garscha U. An experimental cell-based model for studying the cell biology and molecular pharmacology of 5-lipoxygenase-activating protein in leukotriene biosynthesis. Biochim Biophys Acta Gen Subj 2014; 1840:2961-9. [PMID: 24905297 DOI: 10.1016/j.bbagen.2014.05.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 05/09/2014] [Accepted: 05/25/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Subcellular distribution of 5-lipoxygenase (5-LO) to the perinuclear region and interaction with the 5-LO-activating protein (FLAP) are assumed as key steps in leukotriene biosynthesis and are prone to FLAP antagonists. METHODS FLAP and/or 5-LO were stably expressed in HEK293 cells, 5-LO products were analyzed by HPLC, and 5-LO and FLAP subcellular localization was visualized by immunofluorescence microscopy. RESULTS 5-LO and FLAP were stably expressed in HEK293 cells, and upon Ca(2+)-ionophore A23187 stimulation exogenous AA was efficiently transformed into the 5-LO products 5-hydro(pero)xyeicosatetraenoic acid (5-H(p)ETE) and the trans-isomers of LTB4. A23187 stimulation caused 5-LO accumulation at the nuclear membrane only when FLAP was co-expressed. Unexpectedly, A23187 stimulation of HEK cells expressing 5-LO and FLAP without exogenous AA failed in 5-LO product synthesis. HEK cells liberated AA in response to A23187, and transfected HEK cells expressing 12-LO generated 12-HETE after A23187 challenge from endogenous AA. FLAP co-expression increased 5-LO product formation in A23187-stimulated cells at low AA concentrations. Only in cells expressing FLAP and 5-LO, the FLAP antagonist MK886 blocked FLAP-mediated increase in 5-LO product formation, and prevented 5-LO nuclear membrane translocation and co-localization with FLAP. CONCLUSION The cellular biosynthesis of 5-LO products from endogenously derived substrate requires not only functional 5-LO/FLAP co-localization but also additional prerequisites which are dispensable when exogenous AA is supplied; identification of these determinants is challenging. GENERAL SIGNIFICANCE We present a cell model to study the role of FLAP as 5-LO interacting protein in LT biosynthesis in intact cells and for characterization of putative FLAP antagonists.
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Affiliation(s)
- Jana Gerstmeier
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University, Germany
| | - Christina Weinigel
- Institute of Transfusion Medicine, Jena University Hospital, 07743 Jena, Germany
| | - Dagmar Barz
- Institute of Transfusion Medicine, Jena University Hospital, 07743 Jena, Germany
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University, Germany
| | - Ulrike Garscha
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University, Germany
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Niegowski D, Kleinschmidt T, Ahmad S, Qureshi AA, Mårback M, Rinaldo-Matthis A, Haeggström JZ. Structure and inhibition of mouse leukotriene C4 synthase. PLoS One 2014; 9:e96763. [PMID: 24810165 PMCID: PMC4014545 DOI: 10.1371/journal.pone.0096763] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 04/04/2014] [Indexed: 12/18/2022] Open
Abstract
Leukotriene (LT) C4 synthase (LTC4S) is an integral membrane protein that catalyzes the conjugation reaction between the fatty acid LTA4 and GSH to form the pro-inflammatory LTC4, an important mediator of asthma. Mouse models of inflammatory disorders such as asthma are key to improve our understanding of pathogenesis and potential therapeutic targets. Here, we solved the crystal structure of mouse LTC4S in complex with GSH and a product analog, S-hexyl-GSH. Furthermore, we synthesized a nM inhibitor and compared its efficiency and binding mode against the purified mouse and human isoenzymes, along with the enzymes’ steady-state kinetics. Although structural differences near the active site and along the C-terminal α-helix V suggest that the mouse and human LTC4S may function differently in vivo, our data indicate that mouse LTC4S will be a useful tool in future pharmacological research and drug development.
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Affiliation(s)
- Damian Niegowski
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Thea Kleinschmidt
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Shabbir Ahmad
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Abdul Aziz Qureshi
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Michaela Mårback
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Agnes Rinaldo-Matthis
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
- * E-mail:
| | - Jesper Z. Haeggström
- Division of Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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Kelner MJ, Diccianni MB, Yu AL, Rutherford MR, Estes LA, Morgenstern R. Absence of MGST1 mRNA and protein expression in human neuroblastoma cell lines and primary tissue. Free Radic Biol Med 2014; 69:167-71. [PMID: 24486338 PMCID: PMC4010302 DOI: 10.1016/j.freeradbiomed.2014.01.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 12/13/2013] [Accepted: 01/21/2014] [Indexed: 12/01/2022]
Abstract
A recent study identified a haplotype on a small region of chromosome 12, between markers D12S1725 and D12S1596, shared by all patients with familial neuroblastoma (NB). We previously localized the human MGST1 gene, whose gene product protects against oxidative stress, to this very same chromosomal region (12p112.1-p13.33). Owing to the chromosomal location of MGST1; its roles in tumorigenesis, drug resistance, and oxidative stress; and the known sensitivity of NB cell lines to oxidative stress, we considered a role for MGST1 in NB development. Surprisingly there was no detectable MGST1 mRNA or protein in either NB cell lines or NB primary tumor tissue, although all other human tissues, cell lines, and primary tumor tissue examined to date express MGST1 at high levels. The mechanism behind the failure of NB cells and tissue to express MGST1 mRNA is unknown and involves the failure of MGST1 pre-mRNA expression, but does not involve chromosomal rearrangement or nucleotide variation in the promoter, exons, or 3' untranslated region of MGST1. MGST1 provides significant protection against oxidative stress and constitutes 4 to 6% of all protein in the outer membrane of the mitochondria. As NB cells are extremely sensitive to oxidative stress, and often used as a model system to investigate mitochondrial response to endogenous and exogenous stress, these findings may be due to the lack of expression MGST1 protein in NB. The significance of this finding to the development of neuroblastoma (familial or otherwise), however, is unknown and may even be incidental. Although our studies provide a molecular basis for previous work on the sensitivity of NB cells to oxidative stress, and possibly marked variations in NB mitochondrial homeostasis, they also imply that the results of these earlier studies using NB cells are not transferable to other tumor and cell types that express MGST1 at high concentrations.
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Affiliation(s)
- Michael J Kelner
- Department of Pathology, University of California at San Diego, La Jolla, CA 92039, USA.
| | - Mitchell B Diccianni
- Department of Pediatrics, University of California at San Diego, La Jolla, CA 92039, USA
| | - Alice L Yu
- Department of Pediatrics, University of California at San Diego, La Jolla, CA 92039, USA; Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Mary R Rutherford
- Department of Pathology, University of California at San Diego, La Jolla, CA 92039, USA
| | - Leita A Estes
- Department of Pathology, University of California at San Diego, La Jolla, CA 92039, USA
| | - Ralf Morgenstern
- Institute of Environmental Medicine, Karolinska Institutet, SE-17177 Stockholm, Sweden
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Niegowski D, Kleinschmidt T, Olsson U, Ahmad S, Rinaldo-Matthis A, Haeggström JZ. Crystal structures of leukotriene C4 synthase in complex with product analogs: implications for the enzyme mechanism. J Biol Chem 2013; 289:5199-207. [PMID: 24366866 PMCID: PMC3931076 DOI: 10.1074/jbc.m113.534628] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Leukotriene (LT) C4 synthase (LTC4S) catalyzes the conjugation of the fatty acid LTA4 with the tripeptide GSH to produce LTC4, the parent compound of the cysteinyl leukotrienes, important mediators of asthma. Here we mutated Trp-116 in human LTC4S, a residue proposed to play a key role in substrate binding, into an Ala or Phe. Biochemical and structural characterization of these mutants along with crystal structures of the wild type and mutated enzymes in complex with three product analogs, viz. S-hexyl-, 4-phenyl-butyl-, and 2-hydroxy-4-phenyl-butyl-glutathione, provide new insights to binding of substrates and product, identify a new conformation of the GSH moiety at the active site, and suggest a route for product release, aided by Trp-116.
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Affiliation(s)
- Damian Niegowski
- From the Division of Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-107 77 Stockholm, Sweden
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Saunders SP, Goh CS, Brown SJ, Palmer CN, Porter RM, Cole C, Campbell LE, Gierlinski M, Barton GJ, Schneider G, Balmain A, Prescott AR, Weidinger S, Baurecht H, Kabesch M, Gieger C, Lee YA, Tavendale R, Mukhopadhyay S, Turner SW, Madhok VB, Sullivan FM, Relton C, Burn J, Meggitt S, Smith CH, Allen MA, Barker JNN, Reynolds NJ, Cordell HJ, Irvine AD, McLean WI, Sandilands A, Fallon PG. Tmem79/Matt is the matted mouse gene and is a predisposing gene for atopic dermatitis in human subjects. J Allergy Clin Immunol 2013; 132:1121-9. [PMID: 24084074 PMCID: PMC3834151 DOI: 10.1016/j.jaci.2013.08.046] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/15/2013] [Accepted: 08/16/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a major inflammatory condition of the skin caused by inherited skin barrier deficiency, with mutations in the filaggrin gene predisposing to development of AD. Support for barrier deficiency initiating AD came from flaky tail mice, which have a frameshift mutation in Flg and also carry an unknown gene, matted, causing a matted hair phenotype. OBJECTIVE We sought to identify the matted mutant gene in mice and further define whether mutations in the human gene were associated with AD. METHODS A mouse genetics approach was used to separate the matted and Flg mutations to produce congenic single-mutant strains for genetic and immunologic analysis. Next-generation sequencing was used to identify the matted gene. Five independently recruited AD case collections were analyzed to define associations between single nucleotide polymorphisms (SNPs) in the human gene and AD. RESULTS The matted phenotype in flaky tail mice is due to a mutation in the Tmem79/Matt gene, with no expression of the encoded protein mattrin in the skin of mutant mice. Matt(ft) mice spontaneously have dermatitis and atopy caused by a defective skin barrier, with mutant mice having systemic sensitization after cutaneous challenge with house dust mite allergens. Meta-analysis of 4,245 AD cases and 10,558 population-matched control subjects showed that a missense SNP, rs6684514, [corrected] in the human MATT gene has a small but significant association with AD. CONCLUSION In mice mutations in Matt cause a defective skin barrier and spontaneous dermatitis and atopy. A common SNP in MATT has an association with AD in human subjects.
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Affiliation(s)
- Sean P. Saunders
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland
- Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Christabelle S.M. Goh
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Sara J. Brown
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Colin N.A. Palmer
- Biomedical Research Institute, University of Dundee, Dundee, United Kingdom
| | - Rebecca M. Porter
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Christian Cole
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
- Bioinformatics Research Group, University of Dundee, Dundee, United Kingdom
| | - Linda E. Campbell
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Marek Gierlinski
- Bioinformatics Research Group, University of Dundee, Dundee, United Kingdom
| | - Geoffrey J. Barton
- Bioinformatics Research Group, University of Dundee, Dundee, United Kingdom
| | | | - Allan Balmain
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, Calif
| | - Alan R. Prescott
- Division of Cell Signalling and Immunology, University of Dundee, Dundee, United Kingdom
| | - Stephan Weidinger
- Department of Dermatology, Allergy, and Venerology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Hansjörg Baurecht
- Department of Dermatology, Allergy, and Venerology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Michael Kabesch
- Department of Pediatric Pneumology and Allergy, Children's Hospital Regensburg, Regensburg, Germany
| | - Christian Gieger
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Young-Ae Lee
- Pediatric Pneumology and Immunology, Charité University Medicine Berlin and Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, Berlin, Germany
| | - Roger Tavendale
- Biomedical Research Institute, University of Dundee, Dundee, United Kingdom
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, Brighton and Sussex Medical School, Brighton, United Kingdom
| | - Stephen W. Turner
- Department of Child Health, University of Aberdeen, Aberdeen, United Kingdom
| | - Vishnu B. Madhok
- Population Health Sciences, University of Dundee, Dundee, United Kingdom
| | - Frank M. Sullivan
- Population Health Sciences, University of Dundee, Dundee, United Kingdom
| | - Caroline Relton
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - John Burn
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - Simon Meggitt
- Department of Dermatology, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - Catherine H. Smith
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | - Michael A. Allen
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | | | - Nick J. Reynolds
- Institute of Cellular Medicine, Newcastle University, Newcastle, United Kingdom
| | - Heather J. Cordell
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - Alan D. Irvine
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland
- Department of Paediatric Dermatology, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - W.H. Irwin McLean
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Aileen Sandilands
- Centre for Dermatology and Genetic Medicine, University of Dundee, Dundee, United Kingdom
| | - Padraic G. Fallon
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland
- Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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Hess AP, Talbi S, Hamilton AE, Baston-Buest DM, Nyegaard M, Irwin JC, Barragan F, Kruessel JS, Germeyer A, Giudice LC. The human oviduct transcriptome reveals an anti-inflammatory, anti-angiogenic, secretory and matrix-stable environment during embryo transit. Reprod Biomed Online 2013; 27:423-35. [PMID: 23953067 DOI: 10.1016/j.rbmo.2013.06.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 05/15/2013] [Accepted: 06/25/2013] [Indexed: 11/15/2022]
Abstract
The human oviduct serves as a conduit for spermatozoa in the peri-ovulatory phase and nurtures and facilitates transport of the developing embryo for nidation during the luteal phase. Interactions between the embryo and oviductal epithelial surface proteins and secreted products during embryo transit are largely undefined. This study investigated gene expression in the human oviduct in the early luteal versus follicular phases to identify candidate genes and biomolecular processes that may participate in maturation and transport of the embryo as it traverses this tissue. Oviductal RNA was hybridized to oligonucleotide arrays and resulting data were analysed by bioinformatic approaches. There were 650 genes significantly down-regulated and 683 genes significantly up-regulated (P<0.05) in the luteal versus follicular phase. Quantitative real-time PCR, immunoblot analysis and immunohistochemistry confirmed selected gene expression and cellular protein localization. Down-regulated genes involved macrophage recruitment, immunomodulation and matrix-degeneration, and up-regulated genes involved anti-inflammatory, ion transport, anti-angiogenic and early pregnancy recognition. The oviduct displayed some similarities and differences in progesterone-regulated genes compared with the human endometrium. Together, these data suggest a unique hormonally regulated environment during embryo development, maturation and transport through human oviduct and some conservation of progesterone signalling in tissues of common embryological origin. The oviduct serves as a conduit for spermatozoa in the peri-ovulatory phase and it nurtures and facilitates transport of the developing embryo during the luteal phase of the menstrual cycle, although precise interactions between the embryo and oviductal epithelium and secreted products are largely undefined. Herein, we investigated gene expression in human oviduct to identify candidate genes and processes that may participate in maturation and transport of the embryo as it develops implantation competence. Total RNA from human ampullary oviducts in the early luteal versus follicular phases was isolated and hybridized to oligonucleotide arrays. The data, analysed by bioinformatic approaches, revealed that 650 genes were significantly down- and 683 genes were significantly up-regulated in the luteal phase. Quantitative real-time PCR, immunoblot analysis and immunohistochemistry confirmed selected gene expression and cellular protein localization. The data demonstrated down-regulation of genes involved in macrophage recruitment, immunomodulation and matrix degeneration and up-regulation of ion transport and secretions, as well as anti-angiogenic and early pregnancy recognition. Together, these data suggest a unique hormonally regulated environment during embryo development, maturation and transport through the human oviduct and provide insight into mechanisms influencing acquisition of implantation competence of the human embryo during its passage through the oviduct en route to the uterine endometrium.
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Affiliation(s)
- A P Hess
- Department of Gynecology and Obstetrics, Stanford University Medical School, CA, USA; University of Dusseldorf, Medical Faculty, Department of Gynecology, Obstetrics and REI (UniKiD), Dusseldorf, Germany
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Hofmann B, Steinhilber D. 5-Lipoxygenase inhibitors: a review of recent patents (2010-2012). Expert Opin Ther Pat 2013; 23:895-909. [PMID: 23600432 DOI: 10.1517/13543776.2013.791678] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION 5-Lipoxygenase (5-LO) is a crucial enzyme of the arachidonic acid (AA) cascade and catalyzes the formation of bioactive leukotrienes (LTs) with the help of FLAP, the 5-LO-activating protein. LTs are inflammatory mediators playing a pathophysiological role in different diseases like asthma, allergic rhinitis as well as cardiovascular diseases and certain types of cancer. With the rising number of indications for anti-LT therapy, 5-LO inhibitor drug development becomes increasingly important. AREAS COVERED Here, both recent findings regarding the pathophysiological role of 5-LO and the patents claimed for 5-LO inhibitors are discussed. Focusing on direct inhibitors, several patents disclosing FLAP antagonists are also subject of this review. Novel compounds include 1,5-diarylpyrazoles, indolizines and indoles and several natural product extracts. EXPERT OPINION Evaluation of the patent activities revealed only quite moderate action. Nevertheless, several auspicious drug-like molecules were disclosed. It seems that in the near future, FLAP inhibitors can be expected to enter the market for the treatment of asthma. With the resolved structure of 5-LO, structure-based drug design is now applicable. Together with the identification of downstream enzyme inhibitors and dual-targeting drugs within the AA cascade, several tools are at hand to cope with 5-LOs increasing pathophysiological roles.
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Affiliation(s)
- Bettina Hofmann
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Max-von-Laue-Str. 9, 60438, Frankfurt, Germany
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He S, Li C, Liu Y, Lai L. Discovery of Highly Potent Microsomal Prostaglandin E2 Synthase 1 Inhibitors Using the Active Conformation Structural Model and Virtual Screen. J Med Chem 2013; 56:3296-309. [DOI: 10.1021/jm301900x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shan He
- BNLMS, State Key Laboratory for Structural
Chemistry
of Unstable and Stable Species, College of Chemistry and Molecular
Engineering, Peking University, Beijing
100871, China
| | - Cong Li
- BNLMS, State Key Laboratory for Structural
Chemistry
of Unstable and Stable Species, College of Chemistry and Molecular
Engineering, Peking University, Beijing
100871, China
| | - Ying Liu
- BNLMS, State Key Laboratory for Structural
Chemistry
of Unstable and Stable Species, College of Chemistry and Molecular
Engineering, Peking University, Beijing
100871, China
| | - Luhua Lai
- BNLMS, State Key Laboratory for Structural
Chemistry
of Unstable and Stable Species, College of Chemistry and Molecular
Engineering, Peking University, Beijing
100871, China
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Saranya Revathy K, Umasuthan N, Lee Y, Choi CY, Whang I, Lee J. First molluscan theta-class Glutathione S-Transferase: identification, cloning, characterization and transcriptional analysis post immune challenges. Comp Biochem Physiol B Biochem Mol Biol 2012; 162:10-23. [PMID: 22390916 DOI: 10.1016/j.cbpb.2012.02.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/13/2012] [Accepted: 02/13/2012] [Indexed: 10/28/2022]
Abstract
Glutathione S-Transferases (GSTs) are multifunctional cytosolic isoenzymes, distinctly known as phase II detoxification enzymes. GSTs play a significant role in cellular defense against toxicity and have been identified in nearly all organisms studied to date, from bacteria to mammals. In this study, we have identified a full-length cDNA of the theta class GST from Ruditapes philippinarum (RpGSTθ), an important commercial edible molluscan species. RpGSTθ was cloned and the recombinant protein expressed, in order to study its biochemical characteristics and determine its physiological activities. The cDNA comprised an ORF of 693 bp, encoding 231 amino acids with a predicted molecular mass of 27 kDa and an isoelectric point of 8.2. Sequence analysis revealed that RpGSTθ possessed characteristic conserved domains of the GST_N family, Class Theta subfamily (PSSM: cd03050) and GST_C_family Super family (PSSM: cl02776). Phylogenetic analysis showed that RpGSTθ evolutionarily linked with other theta class homologues. The recombinant protein was expressed in Escherichia coli BL21(DE3) cells and the purified enzyme showed high activity with GST substrates like CDNB and 4-NBC. Glutathione dependent peroxidase activity of GST, investigated with cumene hydroperoxide as substrate affirmed the antioxidant property of rRpGSTθ. By quantitative PCR, RpGSTθ was found to be ubiquitously expressed in all tissues examined, with the highest levels occurring in gills, mantle, and hemocytes. Since GSTs may act as detoxification enzymes to mediate immune defense, the effects of pathogen associated molecular pattern, lipopolysaccharide and intact Vibrio tapetis bacteria challenge on RpGSTθ gene transcription were studied. Furthermore, the RpGSTθ expression changes induced by immune challenges were similar to those of the antioxidant defense enzyme manganese superoxide dismutase (RpMnSOD). To our knowledge, RpGSTθ is the first molluscan theta class GST reported, and its immune-related role in Manila clam may provide insights into potential therapeutic targets for protecting this important aquaculture species.
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Affiliation(s)
- Kasthuri Saranya Revathy
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Special Self-Governing Province 690-756, Republic of Korea
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Doolan P, Barron N, Kinsella P, Clarke C, Meleady P, O'Sullivan F, Melville M, Leonard M, Clynes M. Microarray expression profiling identifies genes regulating sustained cell specific productivity (S-Qp) in CHO K1 production cell lines. Biotechnol J 2012; 7:516-26. [DOI: 10.1002/biot.201100255] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 09/26/2011] [Accepted: 12/01/2011] [Indexed: 11/10/2022]
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Chen J, Xiao S, Deng Y, Du X, Yu Z. Cloning of a novel glutathione S-transferase 3 (GST3) gene and expressionanalysis in pearl oyster, Pinctada martensii. FISH & SHELLFISH IMMUNOLOGY 2011; 31:823-830. [PMID: 21807100 DOI: 10.1016/j.fsi.2011.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 05/26/2011] [Accepted: 07/20/2011] [Indexed: 05/31/2023]
Abstract
Microsomal glutathione S-transferase (MGST) functions in cellular defense against xenobiotics and provides protection against the action of lipid hydroperoxides produced as a consequence of oxidative stress. In this study, a full-length cDNA encoding MGST3 (referred to as PmMGST3) was identified from the pearl oyster, Pinctada martensii by a combination of expressed sequence tag (EST) analysis and rapid amplification of cDNA ends (RACE). The full-length cDNA of PmMGST3 is 971 bp and contains a 5' UTR of 39 bp, a 3' UTR of 491 bp with a canonical polyadenylation signal sequence (AATAAA), and an open reading frame (ORF) of 447 bp encoding a polypeptide of 146 residues. The deduced polypeptide contains a conserved motif (FNCx(1)QRx(2)H) characteristic of the MGST3 subfamily. The PmMGST3 transcript could be detected in all tissues tested, with highest transcript level seen in hepatopancreas. Cadmium treatment significantly increased PmMGST3 mRNA levels in gill and hepatopancreas, while bacterial challenge initially depressed mRNA levels and then increased its level in haemocytes, gill and hepatopancreas in a time-dependent manner. In an assay using cumene hydroperoxide as a substrate, we demonstrated that PmMGST3 possesses glutathione-dependent peroxidase activity. These results suggest that PmMGST3 plays an important role in cellular defense against oxidative stress caused by cadmium and bacteria.
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Affiliation(s)
- Jinhui Chen
- Key Laboratory of Marine Bio-resources Sustainable Utilization, CAS, Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
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He S, Lai L. Molecular docking and competitive binding study discovered different binding modes of microsomal prostaglandin E synthase-1 inhibitors. J Chem Inf Model 2011; 51:3254-61. [PMID: 22077876 DOI: 10.1021/ci200427k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Microsomal prostaglandin E synthase-1 (mPGES-1) is a newly recognized therapeutic target for the treatment of inflammation, pain, cancer, atherosclerosis, and stroke. Many mPGES-1 inhibitors have been discovered. However, as the structure of the binding site is not well-characterized, none of these inhibitors was designed based on the mPGES-1 structure, and their inhibition mechanism remains to be fully disclosed. Recently, we built a new structural model of mPGES-1 which was well supported by experimental data. Based on this model, molecular docking and competition experiments were used to investigate the binding modes of four representive mPGES-1 inhibitors. As the inhibitor binding sites predicted by docking overlapped with both the substrate and the cofactor binding sites, mPGES-1 inhibitors might act as dual-site inhibitors. This inhibitory mechanism was further verified by inhibitor-cofactor and inhibitor-substrate competition experiments. To investigate the potency-binding site relationships of mPGES-1 inhibitors, we also carried out molecular docking studies for another series of compounds. The docking results correlated well with the different inhibitory effects observed experimentally. Our data revealed that mPGES-1 inhibitors could bind to the substrate and the cofactor binding sites simultaneously, and this dual-site binding mode improved their potency. Future rational design and optimization of mPGES-1 inhibitors can be carried out based on this binding mechanism.
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Affiliation(s)
- Shan He
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Shimoji M, Imaizumi N, Aniya Y. Modulation of membrane-bound glutathione transferase activity by phospholipids including cardiolipin. Biol Pharm Bull 2011; 34:209-13. [PMID: 21415529 DOI: 10.1248/bpb.34.209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Membrane-bound glutathione transferases (MGST1) distributed mostly in liver microsomal and mitochondrial membranes are activated by the thiol modification. In the present study, the effect of phospholipids on MGST1 activity was investigated using purified enzyme. When MGST1 was mixed with liposomes of cardiolipin (CL), phosphatidylcholine (PC), phosphatidylserine (PC), or phosphatidylethanolamine (PE), its activity was increased in a magnitude which was dependent on the anionic property of lipids in the order of CL>PS>PE>PC, indicating that MGST1 activity is enhanced by surrounding anionic lipids. Although MGST1 was activated by the thiol alkylation with N-ethylmaleimide (NEM), the activation was suppressed in the presence of anionic phospholipids as clearly observed in the presence of CL. Similarly, the activation of MGST1 by diamide or diamide plus glutathione through disulfide-bond formation was also disturbed in the presence of CL. Suppression of NEM-derived MGST1 activation by CL was lost when MGST1 was incubated with CL in the presence of the detergent Triton X-100. These results indicate that reactivity (stability) of the thiol in MGST1 is affected by surrounding lipids, namely CL which prevents MGST1 activation by thiol modification. Since CL is a mitochondria specific lipid located in the inner membrane, it was suggested that function of mitochondrial MGST1 could be regulated by interaction with CL.
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Affiliation(s)
- Mayumi Shimoji
- Laboratory of Molecular Genetics and Pharmacology, School of Health Sciences, Faculty of Medicine, University of the Ryukyus
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48
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Abstract
mPGES-1 (microsomal prostaglandin E synthase-1) is a newly recognized target for the treatment of inflammatory diseases. As the terminal enzyme of the prostaglandin production pathway, mPGES-1 inhibition may have a low risk of side effects. Inhibitors of mPGES-1 have attracted considerable attention as next-generation anti-inflammatory drugs. However, as mPGES-1 is a membrane protein, its enzymatic mechanism remains to be disclosed fully. We used MD (molecular dynamics) simulations, mutation analysis, hybrid experiments and co-IP (co-immunoprecipitation) to investigate the conformation transitions of mPGES-1 during catalysis. mPGES-1 forms a homotrimer with three substrate-binding sites (pockets). In the MD simulation, only one substrate molecule could bind to one of the pockets and form the active complex, suggesting that the mPGES-1 trimer has only one pocket active at any given time. This one-third-of-the-sites reactivity enzyme mechanism was verified further by hybridization experiments and MD simulations. The results of the present study revealed for the first time a novel one-third-of-the-sites reactivity enzyme mechanism for mPGES-1, and the unique substrate-binding pocket in our model constituted an active conformation that was suitable for further enzymatic mechanism study and structural-based drug design against mPGES-1.
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49
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Higgins LG, Hayes JD. Mechanisms of induction of cytosolic and microsomal glutathione transferase (GST) genes by xenobiotics and pro-inflammatory agents. Drug Metab Rev 2011; 43:92-137. [PMID: 21495793 DOI: 10.3109/03602532.2011.567391] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glutathione transferase (GST) isoezymes are encoded by three separate families of genes (designated cytosolic, microsomal and mitochondrial transferases), with distinct evolutionary origins, that provide mammalian species with protection against electrophiles and oxidative stressors in the environment. Members of the cytosolic class Alpha, Mu, Pi and Theta GST, and also certain microsomal transferases (MGST2 and MGST3), are up-regulated by a diverse spectrum of foreign compounds typified by phenobarbital, 1,4-bis[2-(3,5-dichloropyridyloxy)]benzene, pregnenolone-16α-carbonitrile, 3-methylcholanthrene, 2,3,7,8-tetrachloro-dibenzo-p-dioxin, β-naphthoflavone, butylated hydroxyanisole, ethoxyquin, oltipraz, fumaric acid, sulforaphane, coumarin, 1-[2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oyl]imidazole, 12-O-tetradecanoylphorbol-13-acetate, dexamethasone and thiazolidinediones. Collectively, these compounds induce gene expression through the constitutive androstane receptor (CAR), the pregnane X receptor (PXR), the aryl hydrocarbon receptor (AhR), NF-E2-related factor 2 (Nrf2), peroxisome proliferator-activated receptor-γ (PPARγ) and CAATT/enhancer binding protein (C/EBP) β. The microsomal T family includes 5-lipoxygenase activating protein (FLAP), leukotriene C(4) synthase (LTC4S) and prostaglandin E(2) synthase (PGES-1), and these are up-regulated by tumour necrosis factor-α, lipopolysaccharide and transforming growth factor-β. Induction of genes encoding FLAP, LTC4S and PGES-1 is mediated by the transcription factors C/EBPα, C/EBPδ, C/EBPϵ, nuclear factor-κB and early growth response-1. In this article we have reviewed the literature describing the mechanisms by which cytosolic and microsomal GST are up-regulated by xenobiotics, drugs, cytokines and endotoxin. We discuss cross-talk between the different induction mechanisms, and have employed bioinformatics to identify cis-elements in the upstream regions of GST genes to which the various transcription factors mentioned above may be recruited.
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Affiliation(s)
- Larry G Higgins
- Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, United Kingdom
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Yang H, Dou Y, Zheng X, Tan Y, Cheng J, Li L, Du Y, Zhu D, Lou Y. Cysteinyl leukotrienes synthesis is involved in aristolochic acid I-induced apoptosis in renal proximal tubular epithelial cells. Toxicology 2011; 287:38-45. [PMID: 21658425 DOI: 10.1016/j.tox.2011.05.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 05/20/2011] [Accepted: 05/23/2011] [Indexed: 11/20/2022]
Abstract
Aristolochic acid I (AAI) is a primary nephrotoxin and carcinogen that is found in some Chinese herbal medicines, and AAI is responsible for the progression of aristolochic acid nephropathy. The membrane associated proteins in the eicosanoid and glutathione metabolism (MAPEG) superfamily are associated with cysteinyl leukotrienes (cysLTs) synthesis. The present study investigated whether cysLTs synthesis was involved in AAI-induced renal proximal tubular epithelial cell injury in LLC-PK1 cells. Based on MAPEG and related molecular events, the potential mechanisms of AAI-induced LLC-PK1 cell injury were explored. AAI triggered the mitochondrial/caspase apoptotic pathway in LLC-PK1 cells, which was indicated by an enhanced Bax/Bcl-2 ratio, loss of mitochondrial membrane potential, cytochrome C release, and caspase 3 activation. In addition, AAI-induced cysLTs release was accompanied by selective upregulation of 5-lipoxygenase activating protein (FLAP) and microsomal glutathione S-transferase 3 (mGST3) in a concentration-dependent manner. The FLAP inhibitor MK866 significantly protected cells from AAI-induced apoptosis. Furthermore, activation of extracellular signal-regulated kinase (ERK) 1/2 and inhibition of phosphorylated p38-MAPK were demonstrated at the early phase of AAI treatment. Notably, the MEK/ERK inhibitor U0126 reversed AAI-induced apoptosis and reduced both FLAP, mGST3 and mitochondrial/caspase protein expression. Taken together, these findings suggest that cysLTs synthesis is involved in AAI-induced apoptosis via an ERK activation way.
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Affiliation(s)
- Hongyu Yang
- Institute of Pharmacology, Toxicology and Biochemical Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
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