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Wu Z, Wang L, Yin Z, Gao Y, Song Y, Ma J, Zhao M, Wang J, Xue W, Pang X, Zhao Y, Li J, Tu P, Zheng J. Baoyuan decoction inhibits atherosclerosis progression through suppression peroxidized fatty acid and Src/MKK4/JNK pathway-mediated CD 36 expression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155668. [PMID: 38776739 DOI: 10.1016/j.phymed.2024.155668] [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: 01/15/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Baoyuan decoction (BYD) has been widely utilized as a traditional prescription for the treatment of various conditions such as coronary heart disease, aplastic anemia, and chronic renal failure. However, its potential efficacy in improving atherosclerosis has not yet been investigated. PURPOSE Our research aimed to assess the potential of BYD as an inhibitor of atherosclerosis and uncover the underlying mechanism by which it acts on foam cell formation. STUDY DESIGN AND METHODS High-fat diet-induced ApoE-/- mice were employed to explore the effect of BYD on atherosclerosis. The differential metabolites in feces were identified and analyzed by LC-Qtrap-MS. In addition, we utilized pharmacological inhibition of BYD on foam cell formation induced by oxLDL in THP-1 cells to elucidate the underlying mechanisms specifically in macrophages. RESULTS The atherosclerotic plaque burden in the aortic sinus of ApoE-/- mice was notably reduced with BYD treatment, despite no significant alterations in plasma lipids. Metabolomic analysis revealed that BYD suppressed the increased levels of peroxidized fatty acids, specifically 9/13-hydroxyoctadecadienoic acid (9/13-HODE), in the feces of mice. As a prominent peroxidized fatty acid found in oxLDL, we confirmed that 9/13-HODE induced the overexpression of CD36 in THP-1 macrophages by upregulating PPARγ. In subsequent experiments, the decreased levels of CD36 triggered by oxLDL were observed after BYD treatment. This decrease occurred through the regulation of the Src/MMK4/JNK pathway, resulting in the suppression of lipid deposition in THP-1 macrophages. CONCLUSIONS These results illustrate that BYD exhibits potential anti-atherosclerotic effects by inhibiting CD36 expression to prevent foam cell formation.
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Affiliation(s)
- Zhen Wu
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Lingxiao Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ziyu Yin
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yun Gao
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yuelin Song
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jiale Ma
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Maoyuan Zhao
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Junjiao Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Weigang Xue
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xueping Pang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yunfang Zhao
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jun Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Jiao Zheng
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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2
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Mori R, Abe M, Saimoto Y, Shinto S, Jodai S, Tomomatsu M, Tazoe K, Ishida M, Enoki M, Kato N, Yamashita T, Itabashi Y, Nakanishi I, Ohkubo K, Kaidzu S, Tanito M, Matsuoka Y, Morimoto K, Yamada KI. Construction of a screening system for lipid-derived radical inhibitors and validation of hit compounds to target retinal and cerebrovascular diseases. Redox Biol 2024; 73:103186. [PMID: 38744193 PMCID: PMC11109892 DOI: 10.1016/j.redox.2024.103186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024] Open
Abstract
Recent studies have highlighted the indispensable role of oxidized lipids in inflammatory responses, cell death, and disease pathogenesis. Consequently, inhibitors targeting oxidized lipids, particularly lipid-derived radicals critical in lipid peroxidation, which are known as radical-trapping antioxidants (RTAs), have been actively pursued. We focused our investigation on nitroxide compounds that have rapid second-order reaction rate constants for reaction with lipid-derived radicals. A novel screening system was developed by employing competitive reactions between library compounds and a newly developed profluorescence nitroxide probe with lipid-derived radicals to identify RTA compounds. A PubMed search of the top hit compounds revealed their wide application as repositioned drugs. Notably, the inhibitory efficacy of methyldopa, selected from these compounds, against retinal damage and bilateral common carotid artery stenosis was confirmed in animal models. These findings underscore the efficacy of our screening system and suggest that it is an effective approach for the discovery of RTA compounds.
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Affiliation(s)
- Ryota Mori
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masami Abe
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yuma Saimoto
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Saki Shinto
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Sara Jodai
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Manami Tomomatsu
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kaho Tazoe
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Minato Ishida
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masataka Enoki
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Nao Kato
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tomohiro Yamashita
- Department of Drug Discovery Structural Biology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yuki Itabashi
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ikuo Nakanishi
- Quantum RedOx Chemistry Team, Institute for Quantum Life Science (iQLS), Quantum Life and Medical Science Directorate (QLMS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - Kei Ohkubo
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan; Quantum RedOx Chemistry Team, Institute for Quantum Life Science (iQLS), Quantum Life and Medical Science Directorate (QLMS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan; Institute for Advanced Co-Creation Studies, Osaka University, 1-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Sachiko Kaidzu
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya Izumo, Shimane, 693-8501, Japan
| | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya Izumo, Shimane, 693-8501, Japan
| | - Yuta Matsuoka
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazushi Morimoto
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ken-Ichi Yamada
- Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan.
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3
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Zhang Q, Sun T, Yu F, Liu W, Gao J, Chen J, Zheng H, Liu J, Miao C, Guo H, Tian W, Su M, Guo Y, Liu X, Pei Y, Wang Z, Chen S, Mu C, Lam SM, Shui G, Li Z, Yu Z, Zhang Y, Chen G, Lu C, Midgley AC, Li C, Bian X, Liao X, Wang Y, Xiong W, Zhu H, Li Y, Chen Q. PAFAH2 suppresses synchronized ferroptosis to ameliorate acute kidney injury. Nat Chem Biol 2024; 20:835-846. [PMID: 38287154 DOI: 10.1038/s41589-023-01528-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 12/14/2023] [Indexed: 01/31/2024]
Abstract
Synchronized ferroptosis contributes to nephron loss in acute kidney injury (AKI). However, the propagation signals and the underlying mechanisms of the synchronized ferroptosis for renal tubular injury remain unresolved. Here we report that platelet-activating factor (PAF) and PAF-like phospholipids (PAF-LPLs) mediated synchronized ferroptosis and contributed to AKI. The emergence of PAF and PAF-LPLs in ferroptosis caused the instability of biomembranes and signaled the cell death of neighboring cells. This cascade could be suppressed by PAF-acetylhydrolase (II) (PAFAH2) or by addition of antibodies against PAF. Genetic knockout or pharmacological inhibition of PAFAH2 increased PAF production, augmented synchronized ferroptosis and exacerbated ischemia/reperfusion (I/R)-induced AKI. Notably, intravenous administration of wild-type PAFAH2 protein, but not its enzymatically inactive mutants, prevented synchronized tubular cell death, nephron loss and AKI. Our findings offer an insight into the mechanisms of synchronized ferroptosis and suggest a possibility for the preventive intervention of AKI.
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Affiliation(s)
- Qianping Zhang
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Tiantian Sun
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Fan Yu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Wei Liu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Jin Gao
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Jinyu Chen
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hao Zheng
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Jinming Liu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Chenjian Miao
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Huanyi Guo
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wu Tian
- State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing, China
| | - Meihui Su
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin, China
| | - Yingjie Guo
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Xi Liu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Yandong Pei
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhuofei Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, China
| | - Shang Chen
- School of Medicine, Nankai University, Tianjin, China
| | - Chenglong Mu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Sin Man Lam
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- LipidALL Technologies Company, Limited, Changzhou, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zongjin Li
- School of Medicine, Nankai University, Tianjin, China
| | - Zhongbo Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, China
| | - Yan Zhang
- State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing, China
| | - Guo Chen
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Congcong Lu
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Adam C Midgley
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Changhua Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin, China
| | - Xin Bian
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Xudong Liao
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Yong Wang
- College of Life Sciences, Zhejiang University, Hangzhou, China.
| | - Wei Xiong
- Hefei National Research Center for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Hongying Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Yanjun Li
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China.
| | - Quan Chen
- Frontier Center for Cell Response, State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China.
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4
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Brown TP, Santa DE, Berger BA, Kong L, Wittenberg NJ, Im W. CHARMM GUI Membrane Builder for oxidized phospholipid membrane modeling and simulation. Curr Opin Struct Biol 2024; 86:102813. [PMID: 38598982 PMCID: PMC11102286 DOI: 10.1016/j.sbi.2024.102813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
Oxidative stress leads to the production of oxidized phospholipids (oxPLs) that modulate the biophysical properties of phospholipid monolayers and bilayers. As many immune cells are responsible for surveilling cells and tissues for the presence of oxPLs, oxPL-dependent mechanisms have been suggested as targets for treating chronic kidney disease, atherosclerosis, diabetes, and cancer metastasis. This review details recent experimental and computational studies that characterize oxPLs' behaviors in various monolayers and bilayers. These studies investigate how the tail length and polar functional groups of OxPLs impact membrane properties, how oxidized membranes can be stabilized, and how membrane integrity is generally affected by oxidized lipids. In addition, for oxPL-containing membrane modeling and simulation, CHARMM-GUI Membrane Builder has been extended to support a variety of oxPLs, accelerating the simulation system building process for these biologically relevant lipid bilayers.
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Affiliation(s)
- Turner P Brown
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Dane E Santa
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
| | - Brett A Berger
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
| | - Lingyang Kong
- Department of Biological Sciences, Lehigh University, Bethlehem, PA 18015, USA
| | | | - Wonpil Im
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA; Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA; Department of Biological Sciences, Lehigh University, Bethlehem, PA 18015, USA.
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5
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Hirata Y, Mishima E. Membrane Dynamics and Cation Handling in Ferroptosis. Physiology (Bethesda) 2024; 39:73-87. [PMID: 38193763 DOI: 10.1152/physiol.00029.2023] [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] [Received: 11/20/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024] Open
Abstract
Ferroptosis, a regulated cell death hallmarked by excessive lipid peroxidation, is implicated in various (patho)physiological contexts. During ferroptosis, lipid peroxidation leads to a diverse change in membrane properties and the dysregulation of ion homeostasis via the cation channels, ultimately resulting in plasma membrane rupture. This review illuminates cellular membrane dynamics and cation handling in ferroptosis regulation.
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Affiliation(s)
- Yusuke Hirata
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Eikan Mishima
- Institute of Metabolism and Cell Death, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Nephrology, Rheumatology and Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
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6
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Saito Y, Noguchi N, Niki E. Cholesterol is more readily oxidized than phospholipid linoleates in cell membranes to produce cholesterol hydroperoxides. Free Radic Biol Med 2024; 211:89-95. [PMID: 38101585 DOI: 10.1016/j.freeradbiomed.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
Cholesterol is an essential component of cell membranes and serves as an important precursor of steroidal hormones and bile acids, but elevated levels of cholesterol and its oxidation products have been accepted as a risk factor for maintenance of health. The free and ester forms of cholesterol and fatty acids are the two major biological lipids. The aim of this hypothesis paper is to address the long-standing dogma that cholesterol is less susceptible to free radical peroxidation than polyunsaturated fatty acids (PUFAs). It has been observed that cholesterol is peroxidized much slower than PUFAs in plasma but that, contrary to expectations from chemical reactivity toward peroxyl radicals, cholesterol appears to be more readily autoxidized than linoleates in cell membranes. The levels of oxidation products of cholesterol and linoleates observed in humans support this notion. It is speculated that this discrepancy is ascribed to the fact that cholesterol and phospholipids bearing PUFAs are localized apart in raft and non-raft domains of cell membranes respectively and that the antioxidant vitamin E distributed predominantly in the non-raft domains cannot suppress the oxidation of cholesterol lying in raft domains which are relatively deficient in antioxidant.
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Affiliation(s)
- Yoshiro Saito
- Laboratory of Molecular Biology and Metabolism, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan; The Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan.
| | - Noriko Noguchi
- The Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan
| | - Etsuo Niki
- Research Center for Advanced Science and Technology, The University of Tokyo, Komaba, Tokyo, Japan.
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7
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Balakrishnan M, Kenworthy AK. Lipid Peroxidation Drives Liquid-Liquid Phase Separation and Disrupts Raft Protein Partitioning in Biological Membranes. J Am Chem Soc 2024; 146:1374-1387. [PMID: 38171000 PMCID: PMC10797634 DOI: 10.1021/jacs.3c10132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
The peroxidation of membrane lipids by free radicals contributes to aging, numerous diseases, and ferroptosis, an iron-dependent form of cell death. Peroxidation changes the structure and physicochemical properties of lipids, leading to bilayer thinning, altered fluidity, and increased permeability of membranes in model systems. Whether and how lipid peroxidation impacts the lateral organization of proteins and lipids in biological membranes, however, remains poorly understood. Here, we employ cell-derived giant plasma membrane vesicles (GPMVs) as a model to investigate the impact of lipid peroxidation on ordered membrane domains, often termed membrane rafts. We show that lipid peroxidation induced by the Fenton reaction dramatically enhances the phase separation propensity of GPMVs into coexisting liquid-ordered (Lo) and liquid-disordered (Ld) domains and increases the relative abundance of the disordered phase. Peroxidation also leads to preferential accumulation of peroxidized lipids and 4-hydroxynonenal (4-HNE) adducts in the disordered phase, decreased lipid packing in both Lo and Ld domains, and translocation of multiple classes of raft proteins out of ordered domains. These findings indicate that the peroxidation of plasma membrane lipids disturbs many aspects of membrane rafts, including their stability, abundance, packing, and protein and lipid composition. We propose that these disruptions contribute to the pathological consequences of lipid peroxidation during aging and disease and thus serve as potential targets for therapeutic intervention.
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Affiliation(s)
- Muthuraj Balakrishnan
- Center
for Membrane and Cell Physiology, University
of Virginia, Charlottesville, Virginia 22903, United States
- Department
of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, Virginia 22903, United States
| | - Anne K. Kenworthy
- Center
for Membrane and Cell Physiology, University
of Virginia, Charlottesville, Virginia 22903, United States
- Department
of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, Virginia 22903, United States
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8
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Liang N, Harsch BA, Zhou S, Borkowska A, Shearer GC, Kaddurah-Daouk R, Newman JW, Borkowski K. Oxylipin transport by lipoprotein particles and its functional implications for cardiometabolic and neurological disorders. Prog Lipid Res 2024; 93:101265. [PMID: 37979798 DOI: 10.1016/j.plipres.2023.101265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/17/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Lipoprotein metabolism is critical to inflammation. While the periphery and central nervous system (CNS) have separate yet connected lipoprotein systems, impaired lipoprotein metabolism is implicated in both cardiometabolic and neurological disorders. Despite the substantial investigation into the composition, structure and function of lipoproteins, the lipoprotein oxylipin profiles, their influence on lipoprotein functions, and their potential biological implications are unclear. Lipoproteins carry most of the circulating oxylipins. Importantly, lipoprotein-mediated oxylipin transport allows for endocrine signaling by these lipid mediators, long considered to have only autocrine and paracrine functions. Alterations in plasma lipoprotein oxylipin composition can directly impact inflammatory responses of lipoprotein metabolizing cells. Similar investigations of CNS lipoprotein oxylipins are non-existent to date. However, as APOE4 is associated with Alzheimer's disease-related microglia dysfunction and oxylipin dysregulation, ApoE4-dependent lipoprotein oxylipin modulation in neurological pathologies is suggested. Such investigations are crucial to bridge knowledge gaps linking oxylipin- and lipoprotein-related disorders in both periphery and CNS. Here, after providing a summary of existent literatures on lipoprotein oxylipin analysis methods, we emphasize the importance of lipoproteins in oxylipin transport and argue that understanding the compartmentalization and distribution of lipoprotein oxylipins may fundamentally alter our consideration of the roles of lipoprotein in cardiometabolic and neurological disorders.
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Affiliation(s)
- Nuanyi Liang
- West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA 95616, USA
| | - Brian A Harsch
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Sitong Zhou
- Department of Pathology and Laboratory Medicine, University of California Davis, Davis, CA 95616, USA
| | - Alison Borkowska
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Gregory C Shearer
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Rima Kaddurah-Daouk
- Department of Psychiatry and Behavioral Sciences, Duke Institute for Brain Sciences and Department of Medicine, Duke University, Durham, NC, 27708, USA; Duke Institute of Brain Sciences, Duke University, Durham, NC, USA; Department of Medicine, Duke University, Durham, NC, USA
| | - John W Newman
- West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA 95616, USA; Department of Nutrition, University of California - Davis, Davis, CA 95616, USA; Western Human Nutrition Research Center, United States Department of Agriculture - Agriculture Research Service, Davis, CA 95616, USA
| | - Kamil Borkowski
- West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA 95616, USA.
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9
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Belhassen D, Bejaoui S, Martins R, Perina F, Figueiredo J, Ben Abdallah B, Khila Z, Boubaker S, Ben Fayala C, Trabelsi M, Soudani N. Alteration of redox status and fatty acid profile in gills from the green crab (Carcinus aestuarii) following dimethoate exposure. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105699. [PMID: 38072554 DOI: 10.1016/j.pestbp.2023.105699] [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: 06/09/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023]
Abstract
Dimethoate is a broad-spectrum organophosphate insecticide and acaricide. Through various pathways, such as runoff and drift, dimethoate can reach marine environment, and easily impact common organisms in coastal areas, close to agriculture lands, namely crustaceans. The purpose of this study was to investigate the potential effects of dimethoate exposure (50, 100, and 200 μg/l), for 1 day, on a wide range of markers of oxidative stress and neurotransmission impairment, as well as fatty acids composition and histopathological aspect in the gills of the green crab Carcinus aestuarii. A significant increase in n-3 polyunsaturated fatty acids series, namely the eicosapentaenoic acid (C20: 5n3) and its precursor alpha-linolenic acid (C 18: 3n3) in dimethoate-treated crabs was recorded. Concerning n-6 polyunsaturated fatty acids, we noted a high reduction in arachidonic acid (C20:4n-6) levels. Dimethoate exposure increased the levels of hydrogen peroxide, malondialdehyde, lipid hydroperoxides, protein carbonyl, and caused the advanced oxidation of protein products along with enzymatic and non-enzymatic antioxidant-related markers. Acetylcholinesterase activity was highly inhibited following exposure to dimethoate in a concentration-dependent manner. Finally, deleterious histopathological changes with several abnormalities were noted in exposed animals confirming our biochemical findings. The present study offered unique insights to establish a relationship between redox status and alterations in fatty acid composition, allowing a better understanding of dimethoate-triggered toxicity.
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Affiliation(s)
- Dalya Belhassen
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia.
| | - Safa Bejaoui
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia
| | - Roberto Martins
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Fernando Perina
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Joana Figueiredo
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Boutheina Ben Abdallah
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia
| | - Zeineb Khila
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia; Interdisciplinary Laboratory for Continental Environments, UMR 7360 LIEC CNRS University of Lorraine, Metz 57070, France
| | - Samir Boubaker
- Pasteur Institute of Tunis, Department of Human and Experimental Anatomy Pathology, 13, place Pasteur, B.P. 74 Tunis, Belvedere 1002, Tunisia
| | - Chayma Ben Fayala
- Pasteur Institute of Tunis, Department of Human and Experimental Anatomy Pathology, 13, place Pasteur, B.P. 74 Tunis, Belvedere 1002, Tunisia
| | - Monia Trabelsi
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia
| | - Nejla Soudani
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, Tunis 2092, Tunisia
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10
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Balakrishnan M, Kenworthy AK. Lipid peroxidation drives liquid-liquid phase separation and disrupts raft protein partitioning in biological membranes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.12.557355. [PMID: 37745342 PMCID: PMC10515805 DOI: 10.1101/2023.09.12.557355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The peroxidation of membrane lipids by free radicals contributes to aging, numerous diseases, and ferroptosis, an iron-dependent form of cell death. Peroxidation changes the structure, conformation and physicochemical properties of lipids, leading to major membrane alterations including bilayer thinning, altered fluidity, and increased permeability. Whether and how lipid peroxidation impacts the lateral organization of proteins and lipids in biological membranes, however, remains poorly understood. Here, we employ cell-derived giant plasma membrane vesicles (GPMVs) as a model to investigate the impact of lipid peroxidation on ordered membrane domains, often termed membrane rafts. We show that lipid peroxidation induced by the Fenton reaction dramatically enhances phase separation propensity of GPMVs into co-existing liquid ordered (raft) and liquid disordered (non-raft) domains and increases the relative abundance of the disordered, non-raft phase. Peroxidation also leads to preferential accumulation of peroxidized lipids and 4-hydroxynonenal (4-HNE) adducts in the disordered phase, decreased lipid packing in both raft and non-raft domains, and translocation of multiple classes of proteins out of rafts. These findings indicate that peroxidation of plasma membrane lipids disturbs many aspects of membrane rafts, including their stability, abundance, packing, and protein and lipid composition. We propose that these disruptions contribute to the pathological consequences of lipid peroxidation during aging and disease, and thus serve as potential targets for therapeutic intervention.
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Affiliation(s)
- Muthuraj Balakrishnan
- Center for Membrane and Cell Physiology, University of Virginia, Charlottesville, VA USA
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Anne K. Kenworthy
- Center for Membrane and Cell Physiology, University of Virginia, Charlottesville, VA USA
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA, USA
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11
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Major G, Longoni A, Simcock J, Magon NJ, Harte J, Bathish B, Kemp R, Woodfield T, Lim KS. Clinical Applicability of Visible Light-Mediated Cross-linking for Structural Soft Tissue Reconstruction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300538. [PMID: 37424046 PMCID: PMC10502829 DOI: 10.1002/advs.202300538] [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: 01/25/2023] [Revised: 05/28/2023] [Indexed: 07/11/2023]
Abstract
Visible light-mediated cross-linking has utility for enhancing the structural capacity and shape fidelity of laboratory-based polymers. With increased light penetration and cross-linking speed, there is opportunity to extend future applications into clinical spheres. This study evaluated the utility of a ruthenium/sodium persulfate photocross-linking system for increasing structural control in heterogeneous living tissues as an example, focusing on unmodified patient-derived lipoaspirate for soft tissue reconstruction. Freshly-isolated tissue is photocross-linked, then the molar abundance of dityrosine bonds is measured using liquid chromatography tandem mass spectrometry and the resulting structural integrity assessed. The cell function and tissue survival of photocross-linked grafts is evaluated ex vivo and in vivo, with tissue integration and vascularization assessed using histology and microcomputed tomography. The photocross-linking strategy is tailorable, allowing progressive increases in the structural fidelity of lipoaspirate, as measured by a stepwise reduction in fiber diameter, increased graft porosity and reduced variation in graft resorption. There is an increase in dityrosine bond formation with increasing photoinitiator concentration, and tissue homeostasis is achieved ex vivo, with vascular cell infiltration and vessel formation in vivo. These data demonstrate the capability and applicability of photocrosslinking strategies for improving structural control in clinically-relevant settings, potentially achieving more desirable patient outcomes using minimal manipulation in surgical procedures.
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Affiliation(s)
- Gretel Major
- Department of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of OtagoChristchurch8011New Zealand
| | - Alessia Longoni
- Department of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of OtagoChristchurch8011New Zealand
| | - Jeremy Simcock
- Department of SurgeryUniversity of OtagoChristchurch8011New Zealand
| | - Nicholas J Magon
- Centre for Free Radical ResearchDepartment of Pathology and Biomedical ScienceUniversity of OtagoChristchurch8011New Zealand
| | - Jessica Harte
- Jacqui Wood Cancer CentreDivision of Cellular MedicineNinewells Hospital and Medical SchoolUniversity of DundeeDundeeScotlandDD2 1GZUK
| | - Boushra Bathish
- Department of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of OtagoChristchurch8011New Zealand
- Jacqui Wood Cancer CentreDivision of Cellular MedicineNinewells Hospital and Medical SchoolUniversity of DundeeDundeeScotlandDD2 1GZUK
| | - Roslyn Kemp
- Department of Microbiology and ImmunologyUniversity of OtagoDunedin9016New Zealand
| | - Tim Woodfield
- Department of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of OtagoChristchurch8011New Zealand
| | - Khoon S Lim
- Department of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of OtagoChristchurch8011New Zealand
- Light‐Activated Biomaterials GroupSchool of Medical SciencesUniversity of SydneySydney2006Australia
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12
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Qasim N, Arif A, Mahmood R. Hyperglycemia enhances the generation of ROS and RNS that impair antioxidant power and cause oxidative damage in human erythrocytes. Biochem Cell Biol 2023; 101:64-76. [PMID: 36379031 DOI: 10.1139/bcb-2022-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hyperglycemia is a state in which excess glucose circulates in blood. Erythrocytes are in direct contact with this high glucose concentration and are greatly affected by it. We have examined the effect of hyperglycemic condition on isolated human erythrocytes under in vitro conditions. Erythrocytes were incubated with different concentrations of glucose (5, 15, 30, 45 mmol/L) for 24 h, and several biochemical parameters were determined. Treatment with high glucose concentrations increased heme degradation and methemoglobin level, while methemoglobin reductase activity was decreased. A significant increase in protein oxidation and lipid hydroperoxides with a decrease in total sulfhydryl content was seen. This suggested the generation of oxidative stress, which was confirmed by an enhanced production of reactive oxygen and nitrogen species. Hyperglycemia led to a significant decline in the antioxidant power of erythrocytes, lowering their ability to quench free radicals and reduce metal ions to lower oxidation states. The plasma membrane redox system was upregulated, while ascorbate free radical reductase activity was lowered. Glucose exposure inhibited the enzymes of glycolysis and hexose monophosphate shunt. Electron microscopy showed morphological changes resulting in the formation of echinocytes. Thus, the hyperglycemic condition generates reactive species that oxidize proteins, hemoglobin, and lipids; impair the total antioxidant capacity; and alter morphology in human erythrocytes.
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Affiliation(s)
- Neha Qasim
- Department of Biosciences, Faculty of Science, Integral University, Lucknow, Uttar Pradesh, 226026, India
| | - Amin Arif
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
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13
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Compartmentalized regulation of lipid signaling in oxidative stress and inflammation: Plasmalogens, oxidized lipids and ferroptosis as new paradigms of bioactive lipid research. Prog Lipid Res 2023; 89:101207. [PMID: 36464139 DOI: 10.1016/j.plipres.2022.101207] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
Perturbations in lipid homeostasis combined with conditions favoring oxidative stress constitute a hallmark of the inflammatory response. In this review we focus on the most recent results concerning lipid signaling in various oxidative stress-mediated responses and inflammation. These include phagocytosis and ferroptosis. The best characterized event, common to these responses, is the synthesis of oxygenated metabolites of arachidonic acid and other polyunsaturated fatty acids. Major developments in this area have highlighted the importance of compartmentalization of the enzymes and lipid substrates in shaping the appropriate response. In parallel, other relevant lipid metabolic pathways are also activated and, until recently, there has been a general lack of knowledge on the enzyme regulation and molecular mechanisms operating in these pathways. Specifically, data accumulated in recent years on the regulation and biological significance of plasmalogens and oxidized phospholipids have expanded our knowledge on the involvement of lipid metabolism in the progression of disease and the return to homeostasis. These recent major developments have helped to establish the concept of membrane phospholipids as cellular repositories for the compartmentalized production of bioactive lipids involved in cellular regulation. Importantly, an enzyme classically described as being involved in regulating the homeostatic turnover of phospholipids, namely the group VIA Ca2+-independent phospholipase A2 (iPLA2β), has taken center stage in oxidative stress and inflammation research owing to its key involvement in regulating metabolic and ferroptotic signals arising from membrane phospholipids. Understanding the role of iPLA2β in ferroptosis and metabolism not only broadens our knowledge of disease but also opens possible new horizons for this enzyme as a target for therapeutic intervention.
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14
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Type 2 Diabetes mellitus alters the cargo of (poly)phenol metabolome and the oxidative status in circulating lipoproteins. Redox Biol 2022; 59:102572. [PMID: 36516720 PMCID: PMC9762197 DOI: 10.1016/j.redox.2022.102572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/30/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022] Open
Abstract
The incidence of diabetes on the worldwide population has tripled in the past 5 decades. While drug-based therapies are valuable strategies to treat and ease the socio-economic burden of diabetes, nutritional strategies offer valuable alternatives to prevent and manage diabetes onset and contribute to the sustainability of health budgets. Whilst, intervention studies have shown that (poly)phenol-rich diets improve fasting glucose levels and other blood parameters, very little is known about the distribution of ingested polyphenols in circulation and the impact of diabetes on its cargo. In this study we investigate the impact of type 2 diabetes on the cargo of plasma (poly)phenols. Our results show that phenolic compounds are heterogeneously distributed in circulation though mainly transported by lipoprotein populations. We also found that diabetes has a marked effect on the phenolic content transported by VLDL resulting in the decrease in the content of flavonoids and consequently a decrease in the antioxidant capacity. In addition to the reduced bioavailability of (poly)phenol metabolites and increase of oxidative status in LDL and HDL populations in diabetes, cell-based assays show that sub-micromolar amounts of microbial (poly)phenol metabolites are able to counteract the pro-inflammatory status in glucose-challenged endothelial cells. Our findings highlight the relevance of triglyceride-rich lipoproteins in the transport and delivery of bioactive plant-based compounds to the endothelium in T2DM supporting the adoption of nutritional guidelines as an alternative strategy to drug-based therapeutic approaches.
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15
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Cancer immune therapy using engineered ‛tail-flipping' nanoliposomes targeting alternatively activated macrophages. Nat Commun 2022; 13:4548. [PMID: 35927238 PMCID: PMC9352736 DOI: 10.1038/s41467-022-32091-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/13/2022] [Indexed: 11/08/2022] Open
Abstract
Alternatively-activated, M2-like tumor-associated macrophages (TAM) strongly contribute to tumor growth, invasiveness and metastasis. Technologies to disable the pro-tumorigenic function of these TAMs are of high interest to immunotherapy research. Here we show that by designing engineered nanoliposomes bio-mimicking peroxidated phospholipids that are recognised and internalised by scavenger receptors, TAMs can be targeted. Incorporation of phospholipids possessing a terminal carboxylate group at the sn-2 position into nanoliposome bilayers drives their uptake by M2 macrophages with high specificity. Molecular dynamics simulation of the lipid bilayer predicts flipping of the sn-2 tail towards the aqueous phase, while molecular docking data indicates interaction of the tail with Scavenger Receptor Class B type 1 (SR-B1). In vivo, the engineered nanoliposomes are distributed specifically to M2-like macrophages and, upon delivery of the STAT6 inhibitor (AS1517499), zoledronic acid or muramyl tripeptide, these cells promote reduction of the premetastatic niche and/or tumor growth. Altogether, we demonstrate the efficiency and versatility of our engineered “tail-flipping” nanoliposomes in a pre-clinical model, which paves the way to their development as cancer immunotherapeutics in humans. Tumor-associated macrophages are mostly pro-tumorigenic, due to their re-programming by the tumor microenvironment. Here authors show that nanoliposomes, incorporating phospholipids with a flipping-tail chain, are engulfed specifically by intratumoral, alternatively activated macrophages, while delivering a cargo that converts these cells into anti-tumor macrophages.
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16
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Wu H, Tatiyaborworntham N, Hajimohammadi M, Decker EA, Richards MP, Undeland I. Model systems for studying lipid oxidation associated with muscle foods: Methods, challenges, and prospects. Crit Rev Food Sci Nutr 2022; 64:153-171. [PMID: 35916770 DOI: 10.1080/10408398.2022.2105302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Lipid oxidation is a complex process in muscle-based foods (red meat, poultry and fish) causing severe quality deterioration, e.g., off-odors, discoloration, texture defects and nutritional loss. The complexity of muscle tissue -both composition and structure- poses as a formidable challenge in directly clarifying the mechanisms of lipid oxidation in muscle-based foods. Therefore, different in vitro model systems simulating different aspects of muscle have been used to study the pathways of lipid oxidation. In this review, we discuss the principle, preparation, implementation as well as advantages and disadvantages of seven commonly-studied model systems that mimic either compositional or structural aspects of actual meat: emulsions, fatty acid micelles, liposomes, microsomes, erythrocytes, washed muscle mince, and muscle homogenates. Furthermore, we evaluate the prospects of stem cells, tissue cultures and three-dimensional printing for future model system development. Based on this reviewing of oxidation models, tailoring correct model to different study aims could be facilitated, and readers are becoming acquainted with advantages and shortcomings. In addition, insight into recent technology developments, e.g., stem cell- and tissue-cultures as well as three-dimensional printing could provide new opportunities to overcome the current bottlenecks of lipid oxidation studies in muscle.
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Affiliation(s)
- Haizhou Wu
- Department of Biology and Biological Engineering-Food and Nutrition Science, Chalmers University of Technology, Gothenburg, SE, Sweden
| | - Nantawat Tatiyaborworntham
- Food Biotechnology Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), Pathum Thani, Thailand
| | | | - Eric A Decker
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, USA
| | - Mark P Richards
- Department of Animal and Dairy Sciences, Meat Science and Animal Biologics Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - Ingrid Undeland
- Department of Biology and Biological Engineering-Food and Nutrition Science, Chalmers University of Technology, Gothenburg, SE, Sweden
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17
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Petan T, Manček-Keber M. Half is enough: Oxidized lysophospholipids as novel bioactive molecules. Free Radic Biol Med 2022; 188:351-362. [PMID: 35779690 DOI: 10.1016/j.freeradbiomed.2022.06.228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/01/2022] [Accepted: 06/13/2022] [Indexed: 10/17/2022]
Abstract
Studies in the last decade have established the roles of oxidized phospholipids as modulators of various cellular processes, from inflammation and immunity to cell death. Oxidized lysophospholipids, formed through the activity of phospholipases and oxidative enzymes and lacking an acyl chain in comparison with parent phospholipids, are now emerging as novel bioactive lipid mediators. Their detection and structural characterization have been limited in the past due to low amounts and the complexity of their biosynthetic and removal pathways, but recent studies have unequivocally demonstrated their formation under inflammatory conditions. The involvement of oxidized lysophospholipids in immune regulation classifies them as damage-associated molecular patterns (DAMPs), which can promote sterile inflammation and contribute to autoimmune and chronic diseases as well as aging-related diseases. Their signaling pathways are just beginning to be revealed. As the first publications indicate that oxidized lysophospholipids use the same receptors as pathogen-associated molecular patterns (PAMPs), it is likely that the inhibition of signaling pathways activated by oxidized lysophospholipids would affect innate immunity per se. On the other hand, inhibition or modulation of their enzymatic formation, which would not interfere with the response to pathogens, might be beneficial and is potentially a promising new field of research.
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Affiliation(s)
- Toni Petan
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, 1000, Ljubljana, Slovenia.
| | - Mateja Manček-Keber
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, 1000, Ljubljana, Slovenia.
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18
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Wiernicki B, Maschalidi S, Pinney J, Adjemian S, Vanden Berghe T, Ravichandran KS, Vandenabeele P. Cancer cells dying from ferroptosis impede dendritic cell-mediated anti-tumor immunity. Nat Commun 2022; 13:3676. [PMID: 35760796 PMCID: PMC9237053 DOI: 10.1038/s41467-022-31218-2] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 06/06/2022] [Indexed: 01/01/2023] Open
Abstract
Immunogenic cell death significantly contributes to the success of anti-cancer therapies, but immunogenicity of different cell death modalities widely varies. Ferroptosis, a form of cell death that is characterized by iron accumulation and lipid peroxidation, has not yet been fully evaluated from this perspective. Here we present an inducible model of ferroptosis, distinguishing three phases in the process-'initial' associated with lipid peroxidation, 'intermediate' correlated with ATP release and 'terminal' recognized by HMGB1 release and loss of plasma membrane integrity-that serves as tool to study immune cell responses to ferroptotic cancer cells. Co-culturing ferroptotic cancer cells with dendritic cells (DC), reveals that 'initial' ferroptotic cells decrease maturation of DC, are poorly engulfed, and dampen antigen cross-presentation. DC loaded with ferroptotic, in contrast to necroptotic, cancer cells fail to protect against tumor growth. Adding ferroptotic cancer cells to immunogenic apoptotic cells dramatically reduces their prophylactic vaccination potential. Our study thus shows that ferroptosis negatively impacts antigen presenting cells and hence the adaptive immune response, which might hinder therapeutic applications of ferroptosis induction.
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Affiliation(s)
- Bartosz Wiernicki
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Sophia Maschalidi
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Jonathan Pinney
- Pathophysiology lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Sandy Adjemian
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Tom Vanden Berghe
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
- Pathophysiology lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Kodi S Ravichandran
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
- Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Peter Vandenabeele
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium.
- Methusalem program, Ghent University, Ghent, Belgium.
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19
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Firsov AM, Franco MSF, Chistyakov DV, Goriainov SV, Sergeeva MG, Kotova EA, Fomich MA, Bekish AV, Sharko OL, Shmanai VV, Itri R, Baptista MS, Antonenko YN, Shchepinov MS. Deuterated polyunsaturated fatty acids inhibit photoirradiation-induced lipid peroxidation in lipid bilayers. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 229:112425. [PMID: 35276579 DOI: 10.1016/j.jphotobiol.2022.112425] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/17/2022] [Accepted: 02/26/2022] [Indexed: 12/24/2022]
Abstract
Lipid peroxidation (LPO) plays a key role in many age-related neurodegenerative conditions and other disorders. Light irradiation can initiate LPO through various mechanisms and is of importance in retinal and dermatological pathologies. The introduction of deuterated polyunsaturated fatty acids (D-PUFA) into membrane lipids is a promising approach for protection against LPO. Here, we report the protective effects of D-PUFA against the photodynamically induced LPO, using illumination in the presence of the photosensitizer trisulfonated aluminum phthalocyanine (AlPcS3) in liposomes and giant unilamellar vesicles (GUV), as assessed in four experimental models: 1) sulforhodamine B leakage from liposomes, detected with fluorescence correlation spectroscopy (FCS); 2) formation of diene conjugates in liposomal membranes, measured by absorbance at 234 nm; 3) membrane leakage in GUV assessed by optical phase-contrast intensity observations; 4) UPLC-MS/MS method to detect oxidized linoleic acid (Lin)-derived metabolites. Specifically, in liposomes or GUV containing H-PUFA (dilinoleyl-sn-glycero-3-phosphatidylcholine), light irradiation led to an extensive oxidative damage to bilayers. By contrast, no damage was observed in lipid bilayers containing 20% or more D-PUFA (D2-Lin or D10-docosahexanenoic acid). Remarkably, addition of tocopherol increased the dye leakage from liposomes in H-PUFA bilayers compared to photoirradiation alone, signifying tocopherol's pro-oxidant properties. However, in the presence of D-PUFA the opposite effect was observed, whereby adding tocopherol increased the resistance to LPO. These findings suggest a method to augment the protective effects of D-PUFA, which are currently undergoing clinical trials in several neurological and retinal diseases that involve LPO.
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Affiliation(s)
- A M Firsov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
| | - M S F Franco
- Biochemistry Department, Institute of Chemistry, University of São Paulo (IQUSP), AV. Professor Lineu Prestes avenue, 748, USP, CEP: 05508-000 São Paulo, Brazil
| | - D V Chistyakov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
| | - S V Goriainov
- SREC PFUR Peoples' Friendship University of Russia, Moscow, Russia
| | - M G Sergeeva
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
| | - E A Kotova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
| | - M A Fomich
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
| | - A V Bekish
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
| | - O L Sharko
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
| | - V V Shmanai
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
| | - R Itri
- Applied Physics Department, Institute of Physics, University of São Paulo, Rua do Matão, 1371 (217-B.Jafet), Butantã, USP, 05508-090 São Paulo, Brazil
| | - M S Baptista
- Biochemistry Department, Institute of Chemistry, University of São Paulo (IQUSP), AV. Professor Lineu Prestes avenue, 748, USP, CEP: 05508-000 São Paulo, Brazil.
| | - Y N Antonenko
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
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20
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Hamsanathan S, Gurkar AU. Lipids as Regulators of Cellular Senescence. Front Physiol 2022; 13:796850. [PMID: 35370799 PMCID: PMC8965560 DOI: 10.3389/fphys.2022.796850] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/03/2022] [Indexed: 12/11/2022] Open
Abstract
Lipids are key macromolecules that perform a multitude of biological functions ranging from maintaining structural integrity of membranes, energy storage, to signaling molecules. Unsurprisingly, variations in lipid composition and its levels can influence the functional and physiological state of the cell and its milieu. Cellular senescence is a permanent state of cell cycle arrest and is a hallmark of the aging process, as well as several age-related pathologies. Senescent cells are often characterized by alterations in morphology, metabolism, chromatin remodeling and exhibit a complex pro-inflammatory secretome (SASP). Recent studies have shown that the regulation of specific lipid species play a critical role in senescence. Indeed, some lipid species even contribute to the low-grade inflammation associated with SASP. Many protein regulators of senescence have been well characterized and are associated with lipid metabolism. However, the link between critical regulators of cellular senescence and senescence-associated lipid changes is yet to be elucidated. Here we systematically review the current knowledge on lipid metabolism and dynamics of cellular lipid content during senescence. We focus on the roles of major players of senescence in regulating lipid metabolism. Finally, we explore the future prospects of lipid research in senescence and its potential to be targeted as senotherapeutics.
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Affiliation(s)
- Shruthi Hamsanathan
- Aging Institute of UPMC, The University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Aditi U. Gurkar
- Aging Institute of UPMC, The University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Division of Geriatric Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Geriatric Research, Education and Clinical Center, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, United States
- *Correspondence: Aditi U. Gurkar,
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21
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Pinto B, Conde T, Domingues I, Domingues MR. Adaptation of Lipid Profiling in Depression Disease and Treatment: A Critical Review. Int J Mol Sci 2022; 23:ijms23042032. [PMID: 35216147 PMCID: PMC8874755 DOI: 10.3390/ijms23042032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 11/30/2022] Open
Abstract
Major depressive disorder (MDD), also called depression, is a serious disease that impairs the quality of life of patients and has a high incidence, affecting approximately 3.8% of the world population. Its diagnosis is very subjective and is not supported by measurable biomarkers mainly due to the lack of biochemical markers. Recently, disturbance of lipid profiling has been recognized in MDD, in animal models of MDD or in depressed patients, which may contribute to unravel the etiology of the disease and find putative new biomarkers, for a diagnosis or for monitoring the disease and therapeutics outcomes. In this review, we provide an overview of current knowledge of lipidomics analysis, both in animal models of MDD (at the brain and plasma level) and in humans (in plasma and serum). Furthermore, studies of lipidomics analyses after antidepressant treatment in rodents (in brain, plasma, and serum), in primates (in the brain) and in humans (in plasma) were reviewed and give evidence that antidepressants seem to counteract the modification seen in lipids in MDD, giving some evidence that certain altered lipid profiles could be useful MDD biomarkers for future precision medicine.
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Affiliation(s)
- Bruno Pinto
- Centre for Environmental and Marine Studies, CESAM, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal; (B.P.); (T.C.)
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Tiago Conde
- Centre for Environmental and Marine Studies, CESAM, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal; (B.P.); (T.C.)
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal
- Institute of Biomedicine—iBiMED, Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Inês Domingues
- Centre for Environmental and Marine Studies, CESAM, Department of Biology, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - M. Rosário Domingues
- Centre for Environmental and Marine Studies, CESAM, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal; (B.P.); (T.C.)
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence:
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22
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Kim CY, Johnson H, Peltier S, Spitalnik SL, Hod EA, Francis RO, Hudson KE, Stone EF, Gordy DE, Fu X, Zimring JC, Amireault P, Buehler PW, Wilson RB, D'Alessandro A, Shchepinov MS, Thomas T. Deuterated Linoleic Acid Attenuates the RBC Storage Lesion in a Mouse Model of Poor RBC Storage. Front Physiol 2022; 13:868578. [PMID: 35557972 PMCID: PMC9086239 DOI: 10.3389/fphys.2022.868578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/14/2022] [Indexed: 01/07/2023] Open
Abstract
Background: Long-chain polyunsaturated fatty acids (PUFAs) are important modulators of red blood cell (RBC) rheology. Dietary PUFAs are readily incorporated into the RBC membrane, improving RBC deformability, fluidity, and hydration. However, enriching the lipid membrane with PUFAs increases the potential for peroxidation in oxidative environments (e.g., refrigerated storage), resulting in membrane damage. Substitution of bis-allylic hydrogens with deuterium ions in PUFAs decreases hydrogen abstraction, thereby inhibiting peroxidation. If lipid peroxidation is a causal factor in the RBC storage lesion, incorporation of deuterated linoleic acid (DLA) into the RBC membrane should decrease lipid peroxidation, thereby improving RBC lifespan, deformability, filterability, and post-transfusion recovery (PTR) after cold storage. Study Design and Methods: Mice associated with good (C57BL/6J) and poor (FVB) RBC storage quality received diets containing 11,11-D2-LA Ethyl Ester (1.0 g/100 g diet; deuterated linoleic acid) or non-deuterated LA Ethyl Ester (control) for 8 weeks. Deformability, filterability, lipidomics, and lipid peroxidation markers were evaluated in fresh and stored RBCs. Results: DLA was incorporated into RBC membranes in both mouse strains. DLA diet decreased lipid peroxidation (malondialdehyde) by 25.4 and 31% percent in C57 mice and 12.9 and 79.9% in FVB mice before and after cold storage, respectively. In FVB, but not C57 mice, deformability filterability, and post-transfusion recovery were significantly improved. Discussion: In a mouse model of poor RBC storage, with elevated reactive oxygen species production, DLA attenuated lipid peroxidation and significantly improved RBC storage quality.
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Affiliation(s)
- Christopher Y Kim
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Hannah Johnson
- Bloodworks Research Institute, Seattle, WA, United States
| | - Sandy Peltier
- Institut National de la Transfusion Sanguine, Paris, France
| | - Steven L Spitalnik
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Eldad A Hod
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Richard O Francis
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Krystalyn E Hudson
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Elizabeth F Stone
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Dominique E Gordy
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
| | - Xiaoyun Fu
- Bloodworks Research Institute, Seattle, WA, United States
| | - James C Zimring
- University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Pascal Amireault
- Institut National de la Transfusion Sanguine, Paris, France.,X U1163, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM, Université de Paris, Paris, France
| | - Paul W Buehler
- University of Maryland School of Medicine, Baltimore, MD, United States
| | - Robert B Wilson
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, United States
| | | | - Tiffany Thomas
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York-Presbyterian Hospital, New York, NY, United States
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23
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Singh S, Kamat SS. The loss of enzymatic activity of the PHARC-associated lipase ABHD12 results in increased phagocytosis that causes neuroinflammation. Eur J Neurosci 2021; 54:7442-7457. [PMID: 34727579 PMCID: PMC7612011 DOI: 10.1111/ejn.15516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/12/2021] [Accepted: 10/28/2021] [Indexed: 01/08/2023]
Abstract
Phagocytosis is an important evolutionary conserved process, essential for clearing pathogens and cellular debris in higher organisms, including humans. This well‐orchestrated innate immunological response is intricately regulated by numerous cellular factors, important amongst which are the immunomodulatory lysophosphatidylserines (lyso‐PSs) and the pro‐apoptotic oxidized phosphatidylserines (PSs) signalling lipids. Interestingly, in mammals, both these signalling lipids are physiologically regulated by the lipase ABHD12, mutations of which cause the human neurological disorder PHARC. Despite the biomedical significance of this lipase, detailed mechanistic studies and the specific contribution of ABHD12 to innate processes like phagocytosis remain poorly understood. Here, by immunohistochemical and immunofluorescence approaches, using the murine model of PHARC, we show, that upon an inflammatory stimulus, activated microglial cells in the cerebellum of mice deficient in ABHD12 have an amoeboid morphology, increased soma size and display heightened phagocytosis activity. We also report that upon an inflammatory stimulus, cerebellar levels of ABHD12 increase to possibly metabolize the heightened oxidized PS levels, temper phagocytosis and, in turn, control neuroinflammation during oxidative stress. Next, to complement these findings, with the use of biochemical approaches in cultured microglial cells, we show that the pharmacological inhibition and/or genetic deletion of ABHD12 results in increased phagocytic uptake in a fluorescent bead uptake assay. Together, our studies provide compelling evidence that ABHD12 plays an important role in regulating phagocytosis in cerebellar microglial cells and provides a possible explanation, as to why human PHARC subjects display neuroinflammation and atrophy in the cerebellum.
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Affiliation(s)
- Shubham Singh
- Department of Biology, Indian Institute of Science Education and Research (IISER), Pune, Pune, India
| | - Siddhesh S Kamat
- Department of Biology, Indian Institute of Science Education and Research (IISER), Pune, Pune, India
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24
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Sanchez D, Ganfornina MD. The Lipocalin Apolipoprotein D Functional Portrait: A Systematic Review. Front Physiol 2021; 12:738991. [PMID: 34690812 PMCID: PMC8530192 DOI: 10.3389/fphys.2021.738991] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/30/2021] [Indexed: 12/18/2022] Open
Abstract
Apolipoprotein D is a chordate gene early originated in the Lipocalin protein family. Among other features, regulation of its expression in a wide variety of disease conditions in humans, as apparently unrelated as neurodegeneration or breast cancer, have called for attention on this gene. Also, its presence in different tissues, from blood to brain, and different subcellular locations, from HDL lipoparticles to the interior of lysosomes or the surface of extracellular vesicles, poses an interesting challenge in deciphering its physiological function: Is ApoD a moonlighting protein, serving different roles in different cellular compartments, tissues, or organisms? Or does it have a unique biochemical mechanism of action that accounts for such apparently diverse roles in different physiological situations? To answer these questions, we have performed a systematic review of all primary publications where ApoD properties have been investigated in chordates. We conclude that ApoD ligand binding in the Lipocalin pocket, combined with an antioxidant activity performed at the rim of the pocket are properties sufficient to explain ApoD association with different lipid-based structures, where its physiological function is better described as lipid-management than by long-range lipid-transport. Controlling the redox state of these lipid structures in particular subcellular locations or extracellular structures, ApoD is able to modulate an enormous array of apparently diverse processes in the organism, both in health and disease. The new picture emerging from these data should help to put the physiological role of ApoD in new contexts and to inspire well-focused future research.
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Affiliation(s)
- Diego Sanchez
- Instituto de Biologia y Genetica Molecular, Unidad de Excelencia, Universidad de Valladolid-Consejo Superior de Investigaciones Cientificas, Valladolid, Spain
| | - Maria D Ganfornina
- Instituto de Biologia y Genetica Molecular, Unidad de Excelencia, Universidad de Valladolid-Consejo Superior de Investigaciones Cientificas, Valladolid, Spain
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25
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Kato S, Shimizu N, Ogura Y, Otoki Y, Ito J, Sakaino M, Sano T, Kuwahara S, Takekoshi S, Imagi J, Nakagawa K. Structural Analysis of Lipid Hydroperoxides Using Mass Spectrometry with Alkali Metals. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2399-2409. [PMID: 34382801 DOI: 10.1021/jasms.1c00039] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lipid oxidation is involved in various biological phenomena (e.g., oxylipin generation and oxidative stress). Of oxidized lipid structures, the hydroperoxyl group position of lipid hydroperoxides (LOOHs) is a critical factor in determining their biological roles. Despite such interest, current methods to determine hydroperoxyl group positions possess some drawbacks such as selectivity. While we previously reported mass spectrometric methods using Na+ for the highly selective determination of hydroperoxyl group positions, nothing was known except for the fact that sodiated LOOHs (mainly linoleate) provide specific fragment ions. Thus, this study was aimed to investigate the effects of different alkali metals on the fragmentation of LOOHs, assuming its further application to analysis of other complex LOOHs. From the analysis of PC 16:0/18:2;OOH (phosphatidylcholine) and FA 18:2;OOH (fatty acid), we found that fragmentation pathways and ion intensities largely depend on the binding position and type of alkali metals (i.e., Li+, Hock fragmentation; Na+ and K+, α-cleavage (Na+ > K+); Rb+ and Cs+, no fragmentation). Furthermore, we proved that this method can be applied to determine the hydroperoxyl group position of esterified lipids (e.g., phospholipids and cholesterol esters) as well as polyunsaturated fatty acids (PUFAs) including n-3, n-6, and n-9 FA. We anticipate that the insights described in this study provide additional unique insights to conventional lipid oxidation research.
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Affiliation(s)
- Shunji Kato
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-8572, Japan
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Naoki Shimizu
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Yusuke Ogura
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Yurika Otoki
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Masayoshi Sakaino
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
- Food Design Center, J-Oil Mills, Inc., Yokohama, Kanagawa 230-0053, Japan
| | - Takashi Sano
- Food Design Center, J-Oil Mills, Inc., Yokohama, Kanagawa 230-0053, Japan
| | - Shigefumi Kuwahara
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
| | - Susumu Takekoshi
- Department of Cell Biology, Division of Host Defense Mechanism, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Jun Imagi
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-8572, Japan
- Food Design Center, J-Oil Mills, Inc., Yokohama, Kanagawa 230-0053, Japan
| | - Kiyotaka Nakagawa
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-8572, Japan
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 980-0845, Japan
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26
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Jin R, Baumgart T. Asymmetric desorption of lipid oxidation products induces membrane bending. SOFT MATTER 2021; 17:7506-7515. [PMID: 34338699 PMCID: PMC8425771 DOI: 10.1039/d1sm00652e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lipid oxidation, detected in metabolic processes, is induced in excess when the cellular membrane suffers extra oxidative stress. Lipid oxidation can compromise biomembrane function in part through perturbations of lipid packing, membrane permeability, and morphology. Two major types of oxidation products, one with a partially truncated lipid tail with a hydrophilic group at the tail-end, and secondly, a lysolipid (with one of the chains completely truncated) can disturb the membrane bilayer packing significantly. However, they also have an increased tendency to desorb from the membrane. In this study we investigated desorption kinetics of two characteristic lipid oxidation products (PAzePC and 18 : 1 LysoPC) from a model membrane system, and we evaluated the consequences of this process on membrane shape transitions. Using a microfluidic chamber coupled with micropipette aspiration, we observed the incorporation of the two lipids into the membrane of a giant unilamellar vesicle (GUV) and further determined their desorption rates, association rates and flip-flop rates. For both lipids, the desorption is on the time scale of seconds, one to two orders of magnitude faster than their flipping rates. Dilution of the outer solution of the GUVs allowed asymmetric desorption of these two lipids from the GUVs. This process induced lipid number asymmetry and charge asymmetry, specifically for PAzePC containing GUVs, and caused membrane tubulation. Our results indicate that the desorption of lipid oxidation products can alter the local structure of biomembranes and result in morphological changes that may relate to membrane function.
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Affiliation(s)
- Rui Jin
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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27
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García-Torra V, Cano A, Espina M, Ettcheto M, Camins A, Barroso E, Vazquez-Carrera M, García ML, Sánchez-López E, Souto EB. State of the Art on Toxicological Mechanisms of Metal and Metal Oxide Nanoparticles and Strategies to Reduce Toxicological Risks. TOXICS 2021; 9:195. [PMID: 34437513 PMCID: PMC8402504 DOI: 10.3390/toxics9080195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 01/29/2023]
Abstract
Metal nanoparticles have been extensively investigated for different types of pharmaceutical applications. However, their use has raised some concerns about their toxicity involving the increase of reactive oxygen species causing cellular apoptosis. Therefore, in this review we summarize the most relevant toxicity mechanisms of gold, silver, copper and copper oxide nanoparticles as well as production methods of metal nanoparticles. Parameters involved in their toxicity such as size, surface charge and concentration are also highlighted. Moreover, a critical revision of the literature about the strategies used to reduce the toxicity of this type of nanoparticles is carried out throughout the review. Additionally, surface modifications using different coating strategies, nanoparticles targeting and morphology modifications are deeply explained.
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Affiliation(s)
- Victor García-Torra
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (V.G.-T.); (A.C.); (M.E.); (M.L.G.)
| | - Amanda Cano
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (V.G.-T.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Marta Espina
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (V.G.-T.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Miren Ettcheto
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (E.B.); (M.V.-C.)
| | - Antoni Camins
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (E.B.); (M.V.-C.)
| | - Emma Barroso
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (E.B.); (M.V.-C.)
- Networking Research Centre of Diabetes and Associated Metabolic Diseases (CIBERDEM), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Manel Vazquez-Carrera
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (E.B.); (M.V.-C.)
- Networking Research Centre of Diabetes and Associated Metabolic Diseases (CIBERDEM), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Maria Luisa García
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (V.G.-T.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Elena Sánchez-López
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (V.G.-T.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Eliana B. Souto
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
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28
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Bahja J, Dymond MK. Does membrane curvature elastic energy play a role in mediating oxidative stress in lipid membranes? Free Radic Biol Med 2021; 171:191-202. [PMID: 34000382 DOI: 10.1016/j.freeradbiomed.2021.05.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023]
Abstract
The effects of oxidative stress on cells are associated with a wide range of pathologies. Oxidative stress is predominantly initiated by the action of reactive oxygen species and/or lipoxygenases on polyunsaturated fatty acid containing lipids. The downstream products are oxidised phospholipids, bioactive aldehydes and a range of Schiff base by-products between aldehydes and lipids, or other biomacromolecules. In this review we assess the impact of oxidative stress on lipid membranes, focusing on the changes that occur to the curvature preference (lipid spontaneous curvature) and elastic properties of membranes, since these biophysical properties modulate phospholipid homeostasis. Studies show that the lipid products of oxidative stress reduce stored curvature elastic energy in membranes. Based upon this observation, we hypothesize that the effects of oxidative stress on lipid membranes will be reduced by compounds that increase stored curvature elastic energy. We find a strong correlation appears across literature studies that we have reviewed, such that many compounds like vitamin E, Curcumin, Coenzyme Q10 and vitamin A show behaviour consistent with this hypothesis. Finally, we consider whether age-related changes in lipid composition represent the homeostatic response of cells to compensate for the accumulation of in vivo lipid oxidation products.
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Affiliation(s)
- Julia Bahja
- Centre for Stress and Age-Related Disease, University of Brighton, Lewes Rd, Brighton, BN2 4GL, UK
| | - Marcus K Dymond
- Centre for Stress and Age-Related Disease, University of Brighton, Lewes Rd, Brighton, BN2 4GL, UK.
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29
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Dong L, Li Y, Wu H. Platelet activating-factor acetylhydrolase II: A member of phospholipase A2 family that hydrolyzes oxidized phospholipids. Chem Phys Lipids 2021; 239:105103. [PMID: 34116047 DOI: 10.1016/j.chemphyslip.2021.105103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/09/2021] [Accepted: 06/05/2021] [Indexed: 10/21/2022]
Abstract
Intracellular platelet activating-factor acetylhydrolase type II (PAF-AH II) is a 40-kDa monomeric enzyme. It was originally identified as an enzyme that hydrolyzes the acetyl group of PAF (1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine). As a member of phospholipase A2 super family, PAF-AH II has broad substrate specificity. It can hydrolyze phospholipids with relatively short-length or oxidatively modified sn-2 chains which endows it with various functions such as protection against oxidative stress, transacetylase activity and producing lipid mediators. PAF-AH II has been proven to be involved in several diseases such as allergic diseases, oxidative stress-induced injury and ischemia injury, thus it has drawn more attention from researchers. In this paper, we outline an entire summary of PAF-AH II, including its structure, substrate specificity, activity assay, inhibitors and biological activities.
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Affiliation(s)
- Linyue Dong
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiming Li
- Department of TCM Chemistry, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Huali Wu
- Department of TCM Chemistry, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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30
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Onset of Senescence and Steatosis in Hepatocytes as a Consequence of a Shift in the Diacylglycerol/Ceramide Balance at the Plasma Membrane. Cells 2021; 10:cells10061278. [PMID: 34064003 PMCID: PMC8224046 DOI: 10.3390/cells10061278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/06/2021] [Accepted: 05/17/2021] [Indexed: 12/17/2022] Open
Abstract
Ceramide and diacylglycerol (DAG) are bioactive lipids and mediate many cellular signaling pathways. Sphingomyelin synthase (SMS) is the single metabolic link between the two, while SMS2 is the only SMS form located at the plasma membrane. SMS2 functions were investigated in HepG2 cell lines stably expressing SMS2. SMS2 overexpression did not alter sphingomyelin (SM), phosphatidylcholine (PC), or ceramide levels. DAG content increased by approx. 40% and led to downregulation of DAG-dependent protein kinase C (PKC). SMS2 overexpression also induced senescence, characterized by positivity for β-galactosidase activity and heterochromatin foci. HepG2-SMS2 cells exhibited protruded mitochondria and suppressed mitochondrial respiration rates. ATP production and the abundance of Complex V were substantially lower in HepG2-SMS2 cells as compared to controls. SMS2 overexpression was associated with inflammasome activation based on increases in IL-1β and nlpr3 mRNA levels. HepG2-SMS2 cells exhibited lipid droplet accumulation, constitutive activation of AMPK based on elevated 172Thr phosphorylation, increased AMPK abundance, and insensitivity to insulin suppression of AMPK. Thus, our results show that SMS2 regulates DAG homeostasis and signaling in hepatocytes and also provide proof of principle for the concept that offset in bioactive lipids’ production at the plasma membrane can drive the senescence program in association with steatosis and, seemingly, by cell-autonomous mechanisms.
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Going "Green" in the Prevention and Management of Atherothrombotic Diseases: The Role of Dietary Polyphenols. J Clin Med 2021; 10:jcm10071490. [PMID: 33916712 PMCID: PMC8038361 DOI: 10.3390/jcm10071490] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/24/2021] [Accepted: 03/27/2021] [Indexed: 02/06/2023] Open
Abstract
During the 20th century processed and ready-to-eat foods became routinely consumed resulting in a sharp rise of fat, salt, and sugar intake in people's diets. Currently, the global incidence of obesity, raised blood lipids, hypertension, and diabetes in an increasingly aged population contributes to the rise of atherothrombotic events and cardiovascular diseases (CVD) mortality. Drug-based therapies are valuable strategies to tackle and help manage the socio-economic impact of atherothrombotic disorders though not without adverse side effects. The inclusion of fresh fruits and vegetables rich in flavonoids to human diets, as recommended by WHO offers a valuable nutritional strategy, alternative to drug-based therapies, to be explored in the prevention and management of atherothrombotic diseases at early stages. Though polyphenols are mostly associated to color and taste in foods, food flavonoids are emerging as modulators of cholesterol biosynthesis, appetite and food intake, blood pressure, platelet function, clot formation, and anti-inflammatory signaling, supporting the health-promoting effects of polyphenol-rich diets in mitigating the impact of risk factors in atherothrombotic disorders and CVD events. Here we overview the current knowledge on the effect of polyphenols particularly of flavonoid intake on the atherothrombotic risk factors and discuss the caveats and challenges involved with current experimental cell-based designs.
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Rand D, Ravid O, Atrakchi D, Israelov H, Bresler Y, Shemesh C, Omesi L, Liraz-Zaltsman S, Gosselet F, Maskrey TS, Schnaider Beeri M, Wipf P, Cooper I. Endothelial Iron Homeostasis Regulates Blood-Brain Barrier Integrity via the HIF2α-Ve-Cadherin Pathway. Pharmaceutics 2021; 13:pharmaceutics13030311. [PMID: 33670876 PMCID: PMC7997362 DOI: 10.3390/pharmaceutics13030311] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 12/14/2022] Open
Abstract
The objective of this study was to investigate the molecular response to damage at the blood-brain barrier (BBB) and to elucidate critical pathways that might lead to effective treatment in central nervous system (CNS) pathologies in which the BBB is compromised. We have used a human, stem-cell derived in-vitro BBB injury model to gain a better understanding of the mechanisms controlling BBB integrity. Chemical injury induced by exposure to an organophosphate resulted in rapid lipid peroxidation, initiating a ferroptosis-like process. Additionally, mitochondrial ROS formation (MRF) and increase in mitochondrial membrane permeability were induced, leading to apoptotic cell death. Yet, these processes did not directly result in damage to barrier functionality, since blocking them did not reverse the increased permeability. We found that the iron chelator, Desferal© significantly decreased MRF and apoptosis subsequent to barrier insult, while also rescuing barrier integrity by inhibiting the labile iron pool increase, inducing HIF2α expression and preventing the degradation of Ve-cadherin specifically on the endothelial cell surface. Moreover, the novel nitroxide JP4-039 significantly rescued both injury-induced endothelium cell toxicity and barrier functionality. Elucidating a regulatory pathway that maintains BBB integrity illuminates a potential therapeutic approach to protect the BBB degradation that is evident in many neurological diseases.
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Affiliation(s)
- Daniel Rand
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
- Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Orly Ravid
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
| | - Dana Atrakchi
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
| | - Hila Israelov
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
| | - Yael Bresler
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
- Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Chen Shemesh
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
| | - Liora Omesi
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
| | - Sigal Liraz-Zaltsman
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
- Department of Pharmacology, The Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem 97905, Israel
- Department of Sports Therapy, Institute for Health and Medical Professions, Ono Academic College, Kiryat Ono 55000, Israel
| | - Fabien Gosselet
- Blood-Brain Barrier Laboratory (LBHE), Artois University, UR 2465, F-62300 Lens, France;
| | - Taber S. Maskrey
- Department of Chemistry and Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15260, USA; (T.S.M.); (P.W.)
| | - Michal Schnaider Beeri
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- School of Psychology, Interdisciplinary Center (IDC), Herzliya 4610101, Israel
| | - Peter Wipf
- Department of Chemistry and Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15260, USA; (T.S.M.); (P.W.)
| | - Itzik Cooper
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer 52621, Israel; (D.R.); (O.R.); (D.A.); (H.I.); (Y.B.); (C.S.); (L.O.); (S.L.-Z.); (M.S.B.)
- School of Psychology, Interdisciplinary Center (IDC), Herzliya 4610101, Israel
- The Nehemia Rubin Excellence in Biomedical Research—The TELEM Program, Sheba Medical Center, Tel-Hashomer 5262000, Israel
- Correspondence:
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Phospholipase iPLA 2β averts ferroptosis by eliminating a redox lipid death signal. Nat Chem Biol 2021; 17:465-476. [PMID: 33542532 PMCID: PMC8152680 DOI: 10.1038/s41589-020-00734-x] [Citation(s) in RCA: 168] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 12/23/2020] [Indexed: 12/17/2022]
Abstract
Ferroptosis, triggered by discoordination of iron, thiols and lipids, leads to the accumulation of 15-hydroperoxy (Hp)-arachidonoyl-phosphatidylethanolamine (15-HpETE-PE), generated by complexes of 15-lipoxygenase (15-LOX) and a scaffold protein, phosphatidylethanolamine (PE)-binding protein (PEBP)1. As the Ca2+-independent phospholipase A2β (iPLA2β, PLA2G6 or PNPLA9 gene) can preferentially hydrolyze peroxidized phospholipids, it may eliminate the ferroptotic 15-HpETE-PE death signal. Here, we demonstrate that by hydrolyzing 15-HpETE-PE, iPLA2β averts ferroptosis, whereas its genetic or pharmacological inactivation sensitizes cells to ferroptosis. Given that PLA2G6 mutations relate to neurodegeneration, we examined fibroblasts from a patient with a Parkinson's disease (PD)-associated mutation (fPDR747W) and found selectively decreased 15-HpETE-PE-hydrolyzing activity, 15-HpETE-PE accumulation and elevated sensitivity to ferroptosis. CRISPR-Cas9-engineered Pnpla9R748W/R748W mice exhibited progressive parkinsonian motor deficits and 15-HpETE-PE accumulation. Elevated 15-HpETE-PE levels were also detected in midbrains of rotenone-infused parkinsonian rats and α-synuclein-mutant SncaA53T mice, with decreased iPLA2β expression and a PD-relevant phenotype. Thus, iPLA2β is a new ferroptosis regulator, and its mutations may be implicated in PD pathogenesis.
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Dhanasekara CS, Zhang J, Nie S, Li G, Fan Z, Wang S. Nanoparticles target intimal macrophages in atherosclerotic lesions. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2021; 32:102346. [PMID: 33259961 PMCID: PMC8514141 DOI: 10.1016/j.nano.2020.102346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 10/25/2020] [Accepted: 11/22/2020] [Indexed: 10/22/2022]
Abstract
Oxidized phosphatidylcholines (oxPCs) enriched on the oxidized LDL (oxLDL) surface are responsible ligands for binding oxLDL to the CD36 receptor of intimal macrophages in atherosclerotic lesions. We synthesized liposome-like nanoparticles (NPs) using soy phosphatidylcholine and incorporated 1-palmitoyl-2-(4-keto-dodec-3-enedioyl) phosphatidylcholine, a type of oxPCs, on their surface to make ligand-NP (L-NPs). The objectives of this study were to measure and compare their binding affinity to and uptake by primary mouse and THP-1 derived macrophages, and to determine their target specificity to intimal macrophages in aortic lesions in LDL receptor null (LDLr-/-) mice. All in vitro data demonstrate that L-NPs had a high binding affinity to macrophage CD36 receptor. L-NPs had 1.4-fold higher accumulation in aortic lesion areas than NPs. L-NPs co-localized with intimal macrophages and CD36 receptors in the aortic lesions. This target delivery approach may portend a breakthrough in molecular imaging and targeted treatment of atherosclerosis.
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Affiliation(s)
| | - Jia Zhang
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Shufang Nie
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Guigen Li
- Department of Chemistry, Texas Tech University, Lubbock, TX, USA
| | - Zhaoyang Fan
- Department of Electrical & Computer Engineering and Nano Tech Center, Texas Tech University, Lubbock, TX, USA
| | - Shu Wang
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; College of Health Solutions, Arizona State University, Phoenix, AZ, USA.
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Narzt MS, Pils V, Kremslehner C, Nagelreiter IM, Schosserer M, Bessonova E, Bayer A, Reifschneider R, Terlecki-Zaniewicz L, Waidhofer-Söllner P, Mildner M, Tschachler E, Cavinato M, Wedel S, Jansen-Dürr P, Nanic L, Rubelj I, El-Ghalbzouri A, Zoratto S, Marchetti-Deschmann M, Grillari J, Gruber F, Lämmermann I. Epilipidomics of Senescent Dermal Fibroblasts Identify Lysophosphatidylcholines as Pleiotropic Senescence-Associated Secretory Phenotype (SASP) Factors. J Invest Dermatol 2020; 141:993-1006.e15. [PMID: 33333126 DOI: 10.1016/j.jid.2020.11.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023]
Abstract
During aging, skin accumulates senescent cells. The transient presence of senescent cells, followed by their clearance by the immune system, is important in tissue repair and homeostasis. The persistence of senescent cells that evade clearance contributes to the age-related deterioration of the skin. The senescence-associated secretory phenotype of these cells contains immunomodulatory molecules that facilitate clearance but also promote chronic damage. Here, we investigated the epilipidome-the oxidative modifications of phospholipids-of senescent dermal fibroblasts, because these molecules are among the bioactive lipids that were recently identified as senescence-associated secretory phenotype factors. Using replicative- and stress- induced senescence protocols, we identified lysophosphatidylcholines as universally elevated in senescent fibroblasts, whereas other oxidized lipids displayed a pattern that was characteristic for the used senescence protocol. When we tested the lysophosphatidylcholines for senescence-associated secretory phenotype activity, we found that they elicit chemokine release in nonsenescent fibroblasts but also interfere with toll-like receptor 2 and 6/CD36 signaling and phagocytic capacity in macrophages. Using matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry imaging, we localized two lysophosphatidylcholine species in aged skin. This suggests that lysophospholipids may facilitate immune evasion and low-grade chronic inflammation in skin aging.
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Affiliation(s)
- Marie-Sophie Narzt
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Linz and Vienna, Austria
| | - Vera Pils
- Department of Dermatology, Medical University of Vienna, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Christopher Kremslehner
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria
| | - Ionela-Mariana Nagelreiter
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Center for Brain Research, Department of Molecular Neurosciences, Medical University of Vienna, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Emilia Bessonova
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Alina Bayer
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Raffaela Reifschneider
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Lucia Terlecki-Zaniewicz
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Petra Waidhofer-Söllner
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Erwin Tschachler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Maria Cavinato
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Sophia Wedel
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, University of Innsbruck, Austria; Center for Molecular Biosciences Innsbruck, Innsbruck, Austria
| | - Lucia Nanic
- Ruder Boskovic Institute, Division of Molecular Biology, Laboratory for Molecular and Cellular Biology, Zagreb, Croatia
| | - Ivica Rubelj
- Ruder Boskovic Institute, Division of Molecular Biology, Laboratory for Molecular and Cellular Biology, Zagreb, Croatia
| | | | - Samuele Zoratto
- Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Martina Marchetti-Deschmann
- Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Johannes Grillari
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Linz and Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Florian Gruber
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Dermatology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence, Vienna, Austria.
| | - Ingo Lämmermann
- Christian Doppler Laboratory on Biotechnology of Skin Aging, Vienna, Austria; Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
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Tsubone TM, Martins WK, Franco MSF, Silva MN, Itri R, Baptista MS. Cellular compartments challenged by membrane photo-oxidation. Arch Biochem Biophys 2020; 697:108665. [PMID: 33159891 DOI: 10.1016/j.abb.2020.108665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/20/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022]
Abstract
The lipid composition impacts directly on the structure and function of the cytoplasmic as well as organelle membranes. Depending on the type of membrane, specific lipids are required to accommodate, intercalate, or pack membrane proteins to the proper functioning of the cells/organelles. Rather than being only a physical barrier that separates the inner from the outer spaces, membranes are responsible for many biochemical events such as cell-to-cell communication, protein-lipid interaction, intracellular signaling, and energy storage. Photochemical reactions occur naturally in many biological membranes and are responsible for diverse processes such as photosynthesis and vision/phototaxis. However, excessive exposure to light in the presence of absorbing molecules produces excited states and other oxidant species that may cause cell aging/death, mutations and innumerable diseases including cancer. At the same time, targeting key compartments of diseased cells with light can be a promising strategy to treat many diseases in a clinical procedure called Photodynamic Therapy. Here we analyze the relationships between membrane alterations induced by photo-oxidation and the biochemical responses in mammalian cells. We specifically address the impact of photosensitization reactions in membranes of different organelles such as mitochondria, lysosome, endoplasmic reticulum, and plasma membrane, and the subsequent responses of eukaryotic cells.
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Affiliation(s)
| | | | - Marcia S F Franco
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil
| | | | - Rosangela Itri
- Department of Applied Physics, Institute of Physics, University of São Paulo, SP, Brazil
| | - Mauricio S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil.
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Synergy between 15-lipoxygenase and secreted PLA 2 promotes inflammation by formation of TLR4 agonists from extracellular vesicles. Proc Natl Acad Sci U S A 2020; 117:25679-25689. [PMID: 32973091 DOI: 10.1073/pnas.2005111117] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Damage-associated endogenous molecules induce innate immune response, thus making sterile inflammation medically relevant. Stress-derived extracellular vesicles (stressEVs) released during oxidative stress conditions were previously found to activate Toll-like receptor 4 (TLR4), resulting in expression of a different pattern of immune response proteins in comparison to lipopolysaccharide (LPS), underlying the differences between pathogen-induced and sterile inflammation. Here we report that synergistic activities of 15-lipoxygenase (15-LO) and secreted phospholipase A2 (sPLA2) are needed for the formation of TLR4 agonists, which were identified as lysophospholipids (lysoPLs) with oxidized unsaturated acyl chain. Hydroxy, hydroperoxy, and keto products of 2-arachidonoyl-lysoPI oxidation by 15-LO were identified by mass spectrometry (MS), and they activated the same gene pattern as stressEVs. Extracellular PLA2 activity was detected in the synovial fluid from rheumatoid arthritis and gout patients. Furthermore, injection of sPLA2 promoted K/BxN serum-induced arthritis in mice, whereby ankle swelling was partially TLR4 dependent. Results confirm the role of oxidized lysoPL of stressEVs in sterile inflammation that promotes chronic diseases. Both 15-LO and sPLA2 enzymes are induced during inflammation, which opens the opportunity for therapy without compromising innate immunity against pathogens.
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Oskolkova OV, Bochkov VN. Gain of function mechanisms triggering biological effects of oxidized phospholipids. CURRENT OPINION IN TOXICOLOGY 2020. [DOI: 10.1016/j.cotox.2020.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Shchepinov MS. Polyunsaturated Fatty Acid Deuteration against Neurodegeneration. Trends Pharmacol Sci 2020; 41:236-248. [DOI: 10.1016/j.tips.2020.01.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 12/31/2022]
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40
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Tsamesidis I, Pouroutzidou GK, Lymperaki E, Kazeli K, Lioutas CB, Christodoulou E, Perio P, Reybier K, Pantaleo A, Kontonasaki E. Effect of ion doping in silica-based nanoparticles on the hemolytic and oxidative activity in contact with human erythrocytes. Chem Biol Interact 2020; 318:108974. [PMID: 32032594 DOI: 10.1016/j.cbi.2020.108974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/17/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
AIM The aim of this study was the synthesis of ion doped silica-based nanoparticles and the evaluation of their toxic effect on erythrocytes. MATERIALS & METHODS Their synthesis was performed using the sol-gel method, by the progressive addition of calcium, magnesium and copper ions on pure silica nanoparticles. The toxicity evaluation was based on hemolysis, lipid peroxidation, ROS, H2O2 species and antioxidant enzyme production. RESULTS The addition of Mg and Cu in the SNs presented better hemocompatibility by protecting erythrocytes from oxidative stress. CONCLUSION Ion doping with magnesium in the investigated calcium silicate system induces a protective effect in erythrocyte membrane in compare with pure silica nanoparticles.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy; Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France.
| | - Georgia K Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Konstantina Kazeli
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Christos B Lioutas
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evi Christodoulou
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Pierre Perio
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Karine Reybier
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
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Tsubone TM, Baptista MS, Itri R. Understanding membrane remodelling initiated by photosensitized lipid oxidation. Biophys Chem 2019; 254:106263. [DOI: 10.1016/j.bpc.2019.106263] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/13/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022]
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Depciuch J, Stec M, Klebowski B, Baran J, Parlinska-Wojtan M. Platinum-gold nanoraspberries as effective photosensitizer in anticancer photothermal therapy. J Nanobiotechnology 2019; 17:107. [PMID: 31615520 PMCID: PMC6794780 DOI: 10.1186/s12951-019-0539-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/09/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND New nanophotosensitizers for photothermal cancer therapy (PTT) are still sought. In this paper we propose fancy shaped, non agglomerated core/shell PtAu NRs nanoraspberries (PtAu NRs) as potential nanophotosensitizers in PTT. RESULTS Light microscopy images of two colon cancer cell lines (SW480, SW620) showed, that the laser irradiation combined with PtAu NRs caused visible changes in the cell morphology. Fourier Transform InfraRed (FTIR) and Raman spectroscopies showed chemical changes in the DNA, phospholipids, lipids and protein structures caused by laser irradiation in the presence of PtAu NRs. The MTS assay showed ~ 25% mortality of cancer cells due to the addition of PtAu NRs to the cell culture, while for laser irradiation combined with nanoparticles, the mortality of cancer cells increased to 65% for the 650 nm laser and to 60% for the 808 nm laser. The calculated photothermal conversion efficiency reached 62% and 51% for the 650 nm and 808 nm lasers, respectively. CONCLUSIONS PtAu NRs could be applied as effective light-absorbers in the PTT anticancer therapy.
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Affiliation(s)
- J Depciuch
- Institute of Nuclear Physics Polish Academy of Sciences, 31-342, Krakow, Poland.
| | - M Stec
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, 30-663, Krakow, Poland
| | - B Klebowski
- Institute of Nuclear Physics Polish Academy of Sciences, 31-342, Krakow, Poland
| | - J Baran
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, 30-663, Krakow, Poland
| | - M Parlinska-Wojtan
- Institute of Nuclear Physics Polish Academy of Sciences, 31-342, Krakow, Poland
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43
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Platelet CD36 signaling through ERK5 promotes caspase-dependent procoagulant activity and fibrin deposition in vivo. Blood Adv 2019; 2:2848-2861. [PMID: 30381401 DOI: 10.1182/bloodadvances.2018025411] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 09/28/2018] [Indexed: 12/12/2022] Open
Abstract
Dyslipidemia is a risk factor for clinically significant thrombotic events. In this condition, scavenger receptor CD36 potentiates platelet reactivity through recognition of circulating oxidized lipids. CD36 promotes thrombosis by activating redox-sensitive signaling molecules, such as the MAPK extracellular signal-regulated kinase 5 (ERK5). However, the events downstream of platelet ERK5 are not clear. In this study, we report that oxidized low-density lipoprotein (oxLDL) promotes exposure of procoagulant phosphatidylserine (PSer) on platelet surfaces. Studies using pharmacologic inhibitors indicate that oxLDL-CD36 interaction-induced PSer exposure requires apoptotic caspases in addition to the downstream CD36-signaling molecules Src kinases, hydrogen peroxide, and ERK5. Caspases promote PSer exposure and, subsequently, recruitment of the prothrombinase complex, resulting in the generation of fibrin from the activation of thrombin. Caspase activity was observed when platelets were stimulated with oxLDL. This was prevented by inhibiting CD36 and ERK5. Furthermore, oxLDL potentiates convulxin/glycoprotein VI-mediated fibrin formation by platelets, which was prevented when CD36, ERK5, and caspases were inhibited. Using 2 in vivo arterial thrombosis models in apoE-null hyperlipidemic mice demonstrated enhanced arterial fibrin accumulation upon vessel injury. Importantly, absence of ERK5 in platelets or mice lacking CD36 displayed decreased fibrin accumulation in high-fat diet-fed conditions comparable to that seen in chow diet-fed animals. These findings suggest that platelet signaling through CD36 and ERK5 induces a procoagulant phenotype in the hyperlipidemic environment by enhancing caspase-mediated PSer exposure.
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44
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Cirillo S, Vivarelli F, Turrini E, Fimognari C, Burattini S, Falcieri E, Rocchi MBL, Cardenia V, Rodriguez-Estrada MT, Paolini M, Canistro D. The Customizable E-cigarette Resistance Influences Toxicological Outcomes: Lung Degeneration, Inflammation, and Oxidative Stress-Induced in a Rat Model. Toxicol Sci 2019; 172:132-145. [PMID: 31388676 DOI: 10.1093/toxsci/kfz176] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/12/2019] [Accepted: 07/19/2019] [Indexed: 12/26/2022] Open
Abstract
AbstractDespite the knowledge gap regarding the risk-benefit ratio of the electronic cigarette (e-cig), its use has grown exponentially, even in teenagers. E-cig vapor contains carcinogenic compounds (eg, formaldehyde, acetaldehyde, and acrolein) and free radicals, especially reactive oxygen species (ROS) that cause toxicological effects, including DNA damage. The role of e-cig voltage customization on molecule generation has been reported, but the effects of the resistance on e-cig emissions and toxicity are unknown. Here, we show that the manipulation of e-cig resistance influences the carbonyls production from nonnicotine vapor and the oxidative and inflammatory status in a rat model. Fixing the voltage at the conventional 3.5 V, we observed that the amount of the selected aldehydes increased as the resistance decreased from 1.5 to 0.25 Ω. Under these conditions, we exposed Sprague Dawley rats to e-cig aerosol for 28 days, and we studied the pulmonary inflammation, oxidative stress, tissue damage, and blood homeostasis. We found a perturbation of the antioxidant and phase II enzymes, probably related to the increased ROS levels due to the enhanced xanthine oxidase and P450-linked monooxygenases. Furthermore, frames from scanning electron microscope showed a disorganization of alveolar and bronchial epithelium in 0.25 Ω group. Overall, various toxicological outcomes, widely recognized as smoke-related injuries, can potentially occur in e-cig consumers who use low-voltage and resistance device. Our study suggests that certain “tips for vaping safety” cannot be established, and encourages further independent investigations to help public health agencies in regulating the e-cig use.
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Affiliation(s)
- Silvia Cirillo
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, 40126 Bologna
| | - Fabio Vivarelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, 40126 Bologna
| | - Eleonora Turrini
- Department for Life Quality Studies, Alma Mater Studiorum—University of Bologna, 47921 Rimini
| | - Carmela Fimognari
- Department for Life Quality Studies, Alma Mater Studiorum—University of Bologna, 47921 Rimini
| | - Sabrina Burattini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino
| | - Elisabetta Falcieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino
| | | | - Vladimiro Cardenia
- Department of Agricultural, Forest and Food Sciences, University of Turin
| | - Maria Teresa Rodriguez-Estrada
- Department of Agricultural and Food Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna
- Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum—University of Bologna, 47521 Cesena, Italy
| | - Moreno Paolini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, 40126 Bologna
| | - Donatella Canistro
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, 40126 Bologna
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45
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Forcina GC, Dixon SJ. GPX4 at the Crossroads of Lipid Homeostasis and Ferroptosis. Proteomics 2019; 19:e1800311. [PMID: 30888116 DOI: 10.1002/pmic.201800311] [Citation(s) in RCA: 467] [Impact Index Per Article: 93.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/27/2019] [Indexed: 12/16/2022]
Abstract
Oxygen is necessary for aerobic metabolism but can cause the harmful oxidation of lipids and other macromolecules. Oxidation of cholesterol and phospholipids containing polyunsaturated fatty acyl chains can lead to lipid peroxidation, membrane damage, and cell death. Lipid hydroperoxides are key intermediates in the process of lipid peroxidation. The lipid hydroperoxidase glutathione peroxidase 4 (GPX4) converts lipid hydroperoxides to lipid alcohols, and this process prevents the iron (Fe2+ )-dependent formation of toxic lipid reactive oxygen species (ROS). Inhibition of GPX4 function leads to lipid peroxidation and can result in the induction of ferroptosis, an iron-dependent, non-apoptotic form of cell death. This review describes the formation of reactive lipid species, the function of GPX4 in preventing oxidative lipid damage, and the link between GPX4 dysfunction, lipid oxidation, and the induction of ferroptosis.
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Affiliation(s)
| | - Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA, 94305, USA
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46
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Huang F, Wang K, Shen J. Lipoprotein-associated phospholipase A2: The story continues. Med Res Rev 2019; 40:79-134. [PMID: 31140638 PMCID: PMC6973114 DOI: 10.1002/med.21597] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/20/2019] [Accepted: 04/30/2019] [Indexed: 12/15/2022]
Abstract
Inflammation is thought to play an important role in the pathogenesis of vascular diseases. Lipoprotein-associated phospholipase A2 (Lp-PLA2) mediates vascular inflammation through the regulation of lipid metabolism in blood, thus, it has been extensively investigated to identify its role in vascular inflammation-related diseases, mainly atherosclerosis. Although darapladib, the most advanced Lp-PLA2 inhibitor, failed to meet the primary endpoints of two large phase III trials in atherosclerosis patients cotreated with standard medical care, the research on Lp-PLA2 has not been terminated. Novel pathogenic, epidemiologic, genetic, and crystallographic studies regarding Lp-PLA2 have been reported recently, while novel inhibitors were identified through a fragment-based lead discovery strategy. More strikingly, recent clinical and preclinical studies revealed that Lp-PLA2 inhibition showed promising therapeutic effects in diabetic macular edema and Alzheimer's disease. In this review, we not only summarized the knowledge of Lp-PLA2 established in the past decades but also emphasized new findings in recent years. We hope this review could be valuable for helping researchers acquire a much deeper insight into the nature of Lp-PLA2, identify more potent and selective Lp-PLA2 inhibitors, and discover the potential indications of Lp-PLA2 inhibitors.
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Affiliation(s)
- Fubao Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China.,School of Pharmacy, University of Chinese Academy of Sciences, Beijing, China
| | - Kai Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Jianhua Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
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47
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Yang M, Silverstein RL. CD36 signaling in vascular redox stress. Free Radic Biol Med 2019; 136:159-171. [PMID: 30825500 PMCID: PMC6488418 DOI: 10.1016/j.freeradbiomed.2019.02.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/29/2019] [Accepted: 02/18/2019] [Indexed: 12/20/2022]
Abstract
Scavenger receptor CD36 is a multifunctional membrane protein that promotes thrombosis in conditions of oxidative stress such as metabolic disorders including dyslipidemia, diabetes mellitus, and chronic inflammation. In these conditions, specific reactive oxidant species are generated that are context and cell dependent. In the vasculature, CD36 signaling in smooth muscle cells and endothelial cells promotes generation of reactive oxygen species, genetic downregulation of antioxidant genes, and impaired smooth muscle and endothelial function. In hematopoietic cells, CD36 signaling enhances platelet dysfunction thus decreasing the threshold for platelet activation and accelerating arterial thrombosis, whereas in macrophages, CD36 promotes lipid-laden foam cell formation and atherosclerosis. These clinically significant processes are mediated through complex redox regulated signaling mechanisms that include Src-family kinases, MAP kinases and other downstream effectors. We provide an overview of CD36 signaling in vascular redox stress highlighting the role in oxidant generation in vascular and hematopoietic cells, but with special emphasis on platelets and dyslipidemia.
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Affiliation(s)
- Moua Yang
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA; Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - Roy L Silverstein
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA; Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.
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48
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Atherosclerosis: integration of its pathogenesis as a self-perpetuating propagating inflammation: a review. Cardiovasc Endocrinol Metab 2019; 8:51-61. [PMID: 31588428 DOI: 10.1097/xce.0000000000000172] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/29/2019] [Indexed: 12/22/2022]
Abstract
This review proposes that the development of the atherosclerotic plaque is critically dependent on its inflammatory components forming a self-perpetuating and propagating positive feedback loop. The components involved are: (1) LDL oxidation, (2) activation of the endothelium, (3) recruitment of inflammatory monocytes, (4) macrophage accumulation, which induces LDL oxidation, and (5) macrophage generation of inflammatory mediators, which also activate the endothelium. Through these stages, the positive feedback loop is formed, which generates and promotes expansion of the atherosclerotic process. To illustrate this dynamic of lesion development, the author previously produced a computer simulation, which allowed realistic modelling. This hypothesis on atherogenesis can explain the existence and characteristic focal morphology of the atherosclerotic plaque. Each of the components contributing to the feedback loop is discussed. Many of these components also contain subsidiary positive feedback loops, which could exacerbate the overall process.
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49
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Lim KS, Klotz BJ, Lindberg GCJ, Melchels FPW, Hooper GJ, Malda J, Gawlitta D, Woodfield TBF. Visible Light Cross-Linking of Gelatin Hydrogels Offers an Enhanced Cell Microenvironment with Improved Light Penetration Depth. Macromol Biosci 2019; 19:e1900098. [PMID: 31026127 DOI: 10.1002/mabi.201900098] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Indexed: 01/08/2023]
Abstract
In this study, the cyto-compatibility and cellular functionality of cell-laden gelatin-methacryloyl (Gel-MA) hydrogels fabricated using a set of photo-initiators which absorb in 400-450 nm of the visible light range are investigated. Gel-MA hydrogels cross-linked using ruthenium (Ru) and sodium persulfate (SPS), are characterized to have comparable physico-mechanical properties as Gel-MA gels photo-polymerized using more conventionally adopted photo-initiators, such as 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one (Irgacure 2959) and lithium phenyl(2,4,6-trimethylbenzoyl) phosphinate (LAP). It is demonstrated that the Ru/SPS system has a less adverse effect on the viability and metabolic activity of human articular chondrocytes encapsulated in Gel-MA hydrogels for up to 35 days. Furthermore, cell-laden constructs cross-linked using the Ru/SPS system have significantly higher glycosaminoglycan content and re-differentiation capacity as compared to cells encapsulated using I2959 and LAP. Moreover, the Ru/SPS system offers significantly greater light penetration depth as compared to the I2959 system, allowing thick (10 mm) Gel-MA hydrogels to be fabricated with homogenous cross-linking density throughout the construct. These results demonstrate the considerable advantages of the Ru/SPS system over traditional UV polymerizing systems in terms of clinical relevance and practicability for applications such as cell encapsulation, biofabrication, and in situ cross-linking of injectable hydrogels.
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Affiliation(s)
- Khoon S Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand.,Medical Technologies Centre of Research Excellence, Auckland, 1010, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, 1010, New Zealand
| | - Barbara J Klotz
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, PO 85500, Utrecht, GA, 3508, The Netherlands
| | - Gabriella C J Lindberg
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand.,Medical Technologies Centre of Research Excellence, Auckland, 1010, New Zealand
| | - Ferry P W Melchels
- Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Gary J Hooper
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Jos Malda
- Regenerative Medicine Center Utrecht, PO 85500, Utrecht, GA, 3508, The Netherlands.,University Medical Center Utrecht, PO 85500, Utrecht, GA, 3508, The Netherlands.,Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, Utrecht, CM, 3584, The Netherlands
| | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, PO 85500, Utrecht, GA, 3508, The Netherlands
| | - Tim B F Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand.,Medical Technologies Centre of Research Excellence, Auckland, 1010, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, 1010, New Zealand
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50
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O'Donnell VB, Aldrovandi M, Murphy RC, Krönke G. Enzymatically oxidized phospholipids assume center stage as essential regulators of innate immunity and cell death. Sci Signal 2019; 12:12/574/eaau2293. [PMID: 30914483 DOI: 10.1126/scisignal.aau2293] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enzymatically oxidized phospholipids (eoxPLs) are formed through regulated processes by which eicosanoids or prostaglandins are attached to phospholipids (PLs) in immune cells. These eoxPLs comprise structurally diverse families of biomolecules with potent bioactivities, and they have important immunoregulatory roles in both health and disease. The formation of oxPLs through enzymatic pathways and their signaling capabilities are emerging concepts. This paradigm is changing our understanding of eicosanoid, prostaglandin, and PL biology in health and disease. eoxPLs have roles in cellular events such as ferroptosis, apoptosis, and blood clotting and diseases such as arthritis, diabetes, and cardiovascular disease. They are increasingly recognized as endogenous bioactive mediators and potential targets for drug development. This review will describe recent evidence that places eoxPLs and their biosynthetic pathways center stage in immunoregulation.
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Affiliation(s)
- Valerie B O'Donnell
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK.
| | - Maceler Aldrovandi
- Systems Immunity Research Institute, Cardiff University, Cardiff CF14 4XN, UK
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado, 12801 East 17th Avenue, Aurora, CO 80045, USA
| | - Gerhard Krönke
- Department of Internal Medicine 3-Rheumatology and Immunology, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nuremberg (FAU) 91054, Erlangen, Germany
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