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Gao YG, My Le LT, Zhai X, Boldyrev IA, Mishra SK, Tischer A, Murayama T, Nishida A, Molotkovsky JG, Alam A, Brown RE. Measuring Lipid Transfer Protein Activity Using Bicelle-Dilution Model Membranes. Anal Chem 2020; 92:3417-3425. [PMID: 31970977 DOI: 10.1021/acs.analchem.9b05523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In vitro assessment of lipid intermembrane transfer activity by cellular proteins typically involves measurement of either radiolabeled or fluorescently labeled lipid trafficking between vesicle model membranes. Use of bilayer vesicles in lipid transfer assays usually comes with inherent challenges because of complexities associated with the preparation of vesicles and their rather short "shelf life". Such issues necessitate the laborious task of fresh vesicle preparation to achieve lipid transfer assays of high quality, precision, and reproducibility. To overcome these limitations, we have assessed model membrane generation by bicelle dilution for monitoring the transfer rates and specificity of various BODIPY-labeled sphingolipids by different glycolipid transfer protein (GLTP) superfamily members using a sensitive fluorescence resonance energy transfer approach. Robust, protein-selective sphingolipid transfer is observed using donor and acceptor model membranes generated by dilution of 0.5 q-value mixtures. The sphingolipid transfer rates are comparable to those observed between small bilayer vesicles produced by sonication or ethanol injection. Among the notable advantages of using bicelle-generated model membranes are (i) easy and straightforward preparation by means that avoid lipid fluorophore degradation and (ii) long "shelf life" after production (≥6 days) and resilience to freeze-thaw storage. The bicelle-dilution-based assay is sufficiently robust, sensitive, and stable for application, not only to purified LTPs but also for LTP activity detection in crude cytosolic fractions of cell homogenates.
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Affiliation(s)
- Yong-Guang Gao
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
| | - Le Thi My Le
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
| | - Xiuhong Zhai
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
| | - Ivan A Boldyrev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry , Russian Academy of Sciences , 117997 Moscow , Russian Federation
| | - Shrawan K Mishra
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
| | - Alexander Tischer
- Mayo Clinic Division of Hematology , 150 Third Street SW , Stabile Building, Rochester , Minnesota 55905 , United States
| | - Toshihiko Murayama
- Graduate School of Pharmaceutical Sciences , Chiba University , Inohana 1-8-1 , Chuo-ku, Chiba 260-8675 , Japan
| | - Atsushi Nishida
- Graduate School of Pharmaceutical Sciences , Chiba University , Inohana 1-8-1 , Chuo-ku, Chiba 260-8675 , Japan
| | - Julian G Molotkovsky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry , Russian Academy of Sciences , 117997 Moscow , Russian Federation
| | - Amer Alam
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
| | - Rhoderick E Brown
- The Hormel Institute , University of Minnesota , 801 16th Avenue NE , Austin , Minnesota 55912 , United States
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Rodriguez-Cuenca S, Pellegrinelli V, Campbell M, Oresic M, Vidal-Puig A. Sphingolipids and glycerophospholipids - The "ying and yang" of lipotoxicity in metabolic diseases. Prog Lipid Res 2017; 66:14-29. [PMID: 28104532 DOI: 10.1016/j.plipres.2017.01.002] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 11/30/2016] [Accepted: 01/05/2017] [Indexed: 12/14/2022]
Abstract
Sphingolipids in general and ceramides in particular, contribute to pathophysiological mechanisms by modifying signalling and metabolic pathways. Here, we present the available evidence for a bidirectional homeostatic crosstalk between sphingolipids and glycerophospholipids, whose dysregulation contributes to lipotoxicity induced metabolic stress. The initial evidence for this crosstalk originates from simulated models designed to investigate the biophysical properties of sphingolipids in plasma membrane representations. In this review, we reinterpret some of the original findings and conceptualise them as a sort of "ying/yang" interaction model of opposed/complementary forces, which is consistent with the current knowledge of lipid homeostasis and pathophysiology. We also propose that the dysregulation of the balance between sphingolipids and glycerophospholipids results in a lipotoxic insult relevant in the pathophysiology of common metabolic diseases, typically characterised by their increased ceramide/sphingosine pools.
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Affiliation(s)
- S Rodriguez-Cuenca
- Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge. Cambridge, UK.
| | - V Pellegrinelli
- Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge. Cambridge, UK
| | - M Campbell
- Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge. Cambridge, UK
| | - M Oresic
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FI -20520 Turku, Finland
| | - A Vidal-Puig
- Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge. Cambridge, UK; Wellcome Trust Sanger Institute, Hinxton, UK.
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Makiyama T, Nakamura H, Nagasaka N, Yamashita H, Honda T, Yamaguchi N, Nishida A, Murayama T. Trafficking of Acetyl-C16-Ceramide-NBD with Long-Term Stability and No Cytotoxicity into the Golgi Complex. Traffic 2015; 16:476-92. [DOI: 10.1111/tra.12265] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 01/20/2015] [Accepted: 01/20/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Tomohiko Makiyama
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Hiroyuki Nakamura
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Nobuo Nagasaka
- Laboratory of Organic Chemistry, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Hisahiro Yamashita
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Takuya Honda
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Atsushi Nishida
- Laboratory of Organic Chemistry, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
| | - Toshihiko Murayama
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences; Chiba University; Chiba 260-8675 Japan
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