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Vallée M. Advances in steroid research from the pioneering neurosteroid concept to metabolomics: New insights into pregnenolone function. Front Neuroendocrinol 2024; 72:101113. [PMID: 37993022 DOI: 10.1016/j.yfrne.2023.101113] [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: 09/22/2023] [Revised: 11/13/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023]
Abstract
Advances in neuroendocrinology have led to major discoveries since the 19th century, identifying adaptive loops for maintaining homeostasis. One of the most remarkable discoveries was the concept of neurosteroids, according to which the brain is not only a target but also a source of steroid production. The identification of new membrane steroid targets now underpins the neuromodulatory effects of neurosteroids such as pregnenolone, which is involved in functions mediated by the GPCR CB1 receptor. Structural analysis of steroids is a key feature of their interactions with the phospholipid membrane, receptors and resulting activity. Therefore, mass spectrometry-based methods have been developed to elucidate the metabolic pathways of steroids, the ultimate approach being metabolomics, which allows the identification of a large number of metabolites in a single sample. This approach should enable us to make progress in understanding the role of neurosteroids in the functioning of physiological and pathological processes.
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Affiliation(s)
- Monique Vallée
- University Bordeaux, INSERM, Neurocentre Magendie, U1215, F-33000 Bordeaux, France.
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Han S, Lu H, Yu Y, Liu X, Jing F, Wang L, Zhao Y, Hou M. Hyperlipidemia in immune thrombocytopenia: a retrospective study. Thromb J 2023; 21:102. [PMID: 37784127 PMCID: PMC10544441 DOI: 10.1186/s12959-023-00545-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 09/13/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Immune thrombocytopenia (ITP) is an autoimmune hemorrhagic disease characterized by low platelet count and bleeding manifestations. However, some patients also suffered from atherosclerosis or even infarction. Apart from activated platelets, lipid metabolism takes a large part in the formation of atherosclerosis and metabolic syndrome. The lipid metabolic state in ITP patients is still unknown. METHODS We retrospectively reviewed 302 hospitalized ITP patients in our cohort, comparing their blood lipids, bleeding symptoms, metabolic diseases and treatment responses. RESULTS We found a high proportion of ITP patients suffered from hyperlipidemia, and other metabolic diseases including cardiovascular or cerebral atherosclerosis or infarction, hypertension, and type 2 diabetes. Hyperlipidemia was associated with severe bleeding and treatment refractoriness in ITP. Statins could alleviate thrombocytopenia and bleeding severity, and facilitate ITP treatment, while improving hyperlipidemia in ITP patients. CONCLUSIONS Our present study demonstrated that lipid metabolism might play an indispensable role in ITP pathogenesis and development.
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Affiliation(s)
- Shouqing Han
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Hui Lu
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Yafei Yu
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Xinguang Liu
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Fangmiao Jing
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Liang Wang
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China.
- Department of Hematology, Shengli Oilfield Central Hospital, Dongying, China.
| | - Yajing Zhao
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China.
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China.
| | - Ming Hou
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China.
- Leading Research Group of Scientific Innovation, Department of Science and Technology of Shandong Province, Qilu Hospital of Shandong University, Jinan, China.
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Islam MZ, Hossain SI, Deplazes E, Saha SC. Concentration-dependent cortisone adsorption and interaction with model lung surfactant monolayer. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2113397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Mohammad Zohurul Islam
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Ultimo, Australia
| | - Sheikh I. Hossain
- School of Life Sciences, University of Technology Sydney, Ultimo, Australia
| | - Evelyne Deplazes
- School of Life Sciences, University of Technology Sydney, Ultimo, Australia
| | - Suvash C. Saha
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Ultimo, Australia
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Crowley J, Withana M, Deplazes E. The interaction of steroids with phospholipid bilayers and membranes. Biophys Rev 2022; 14:163-179. [PMID: 35340606 PMCID: PMC8921366 DOI: 10.1007/s12551-021-00918-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
Steroids are critical for various physiological processes and used to treat inflammatory conditions. Steroids act by two distinct pathways. The genomic pathway is initiated by the steroid binding to nuclear receptors while the non-genomic pathway involves plasma membrane receptors. It has been proposed that steroids might also act in a more indirect mechanism by altering biophysical properties of membranes. Yet, little is known about the effect of steroids on membranes, and steroid-membrane interactions are complex and challenging to characterise. The focus of this review is to outline what is currently known about the interactions of steroids with phospholipid bilayers and illustrate the complexity of these systems using cortisone and progesterone as the main examples. The combined findings from current work demonstrate that the hydrophobicity and planarity of the steroid core does not provide a consensus for steroid-membrane interactions. Even small differences in the substituents on the steroid core can result in significant changes in steroid-membrane interactions. Furthermore, steroid-induced changes in phospholipid bilayer properties are often dependent on steroid concentration and lipid composition. This complexity means that currently there is insufficient information to establish a reliable structure-activity relationship to describe the effect of steroids on membrane properties. Future work should address the challenge of connecting the findings from studying the effect of steroids on phospholipid bilayers to cell membranes. Insights from steroid-membrane interactions will benefit our understanding of normal physiology and assist drug development.
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Affiliation(s)
- Jackson Crowley
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007 Australia
| | - Minduli Withana
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007 Australia
| | - Evelyne Deplazes
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007 Australia
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD 4072 Australia
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