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Diercks AH, Podolskaia IS, Murray TA, Jahn AN, Mai D, Liu D, Amon LM, Nakagawa Y, Shimano H, Aderem A, Gold ES. Oxysterol binding protein regulates the resolution of TLR-induced cytokine production in macrophages. Proc Natl Acad Sci U S A 2024; 121:e2406492121. [PMID: 39361877 PMCID: PMC11331125 DOI: 10.1073/pnas.2406492121] [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: 04/03/2024] [Accepted: 06/30/2024] [Indexed: 10/05/2024] Open
Abstract
Toll-like receptors (TLRs) on macrophages sense microbial components and trigger the production of numerous cytokines and chemokines that mediate the inflammatory response to infection. Although many of the components required for the activation of the TLR pathway have been identified, the mechanisms that appropriately regulate the magnitude and duration of the response and ultimately restore homeostasis are less well understood. Furthermore, a growing body of work indicates that TLR signaling reciprocally interacts with other fundamental cellular processes, including lipid metabolism but only a few specific molecular links between immune signaling and the macrophage lipidome have been studied in detail. Oxysterol-binding protein (Osbp) is the founding member of a family of lipid-binding proteins with diverse functions in lipid sensing, lipid transport, and cell signaling but its role in TLR responses is not well defined. Here, we demonstrate that altering the state of Osbp with its natural ligand, 25-hydroxycholesterol (25HC), or pharmacologically, sustains and thereby amplifies Tlr4-induced cytokine production in vitro and in vivo. CRISPR-induced knockdown of Osbp abrogates the ability of these ligands to sustain TLR responses. Lipidomic analysis suggested that the effect of Osbp on TLR signaling may be mediated by alterations in triglyceride production and treating cells with a Dgat1 inhibitor, which blocks triglyceride production and completely abrogates the effect of Osbp on TLR signaling. Thus, Osbp is a sterol sensor that transduces perturbations of the lipidome to modulate the resolution of macrophage inflammatory responses.
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Affiliation(s)
- Alan H. Diercks
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Irina S. Podolskaia
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Tara A. Murray
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Ana N. Jahn
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Dat Mai
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Dong Liu
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Lynn M. Amon
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Yoshimi Nakagawa
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki305-8575, Japan
- Division of Complex Biosystem Research, Department of Research and Development, Institute of Natural Medicine, University of Toyama, SugitaniToyama930-0194, Japan
| | - Hitoshi Shimano
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki305-8575, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki305-8577, Japan
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki305-8575, Japan
| | - Alan Aderem
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
| | - Elizabeth S. Gold
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, WA98109
- Center for Cardiovascular Health, Virginia Mason Franciscan Health, Seattle, WA98101
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2
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Ma-Lauer Y, Li P, Niemeyer D, Richter A, Pusl K, von Brunn B, Ru Y, Xiang C, Schwinghammer S, Liu J, Baral P, Berthold EJ, Qiu H, Roy A, Kremmer E, Flaswinkel H, Drosten C, Jin Z, von Brunn A. Oxysterole-binding protein targeted by SARS-CoV-2 viral proteins regulates coronavirus replication. Front Cell Infect Microbiol 2024; 14:1383917. [PMID: 39119292 PMCID: PMC11306179 DOI: 10.3389/fcimb.2024.1383917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/09/2024] [Indexed: 08/10/2024] Open
Abstract
Introduction Oxysterol-binding protein (OSBP) is known for its crucial role in lipid transport, facilitating cholesterol exchange between the Golgi apparatus and endoplasmic reticulum membranes. Despite its established function in cellular processes, its involvement in coronavirus replication remains unclear. Methods In this study, we investigated the role of OSBP in coronavirus replication and explored the potential of a novel OSBP-binding compound, ZJ-1, as an antiviral agent against coronaviruses, including SARS-CoV-2. We utilized a combination of biochemical and cellular assays to elucidate the interactions between OSBP and SARS-CoV-2 non-structural proteins (Nsps) and other viral proteins. Results Our findings demonstrate that OSBP positively regulates coronavirus replication. Moreover, treatment with ZJ-1 resulted in reduced OSBP levels and exhibited potent antiviral effects against multiple coronaviruses. Through our investigation, we identified specific interactions between OSBP and SARS-CoV-2 Nsps, particularly Nsp3, Nsp4, and Nsp6, which are involved in double-membrane vesicle formation-a crucial step in viral replication. Additionally, we observed that Nsp3 a.a.1-1363, Nsp4, and Nsp6 target vesicle-associated membrane protein (VAMP)-associated protein B (VAP-B), which anchors OSBP to the ER membrane. Interestingly, the interaction between OSBP and VAP-B is disrupted by Nsp3 a.a.1-1363 and partially impaired by Nsp6. Furthermore, we identified SARS-CoV-2 orf7a, orf7b, and orf3a as additional OSBP targets, with OSBP contributing to their stabilization. Conclusion Our study highlights the significance of OSBP in coronavirus replication and identifies it as a promising target for the development of antiviral therapies against SARS-CoV-2 and other coronaviruses. These findings underscore the potential of OSBP-targeted interventions in combating coronavirus infections.
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Affiliation(s)
- Yue Ma-Lauer
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Pengyuan Li
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Daniela Niemeyer
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Centre for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Anja Richter
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Centre for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Konstantin Pusl
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Brigitte von Brunn
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Yi Ru
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Chengyu Xiang
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Sebastian Schwinghammer
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Jia Liu
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Priya Baral
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Emilia J. Berthold
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- Institute of Lung Health and Immunity and Comprehensive Pneumology Center with the Comprehensive Pneumology Center Munich (CPC-M) bioArchive, Helmholtz-Zentrum München, Munich, Germany
| | - Haibo Qiu
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA, United States
| | - Avishek Roy
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA, United States
| | | | | | - Christian Drosten
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Centre for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Zhendong Jin
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA, United States
| | - Albrecht von Brunn
- Virology Department, Max-von-Pettenkofer Institute, Ludwig-Maximilians-University Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, Munich, Germany
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3
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Cigler M, Imrichova H, Frommelt F, Caramelle L, Depta L, Rukavina A, Kagiou C, Hannich JT, Mayor-Ruiz C, Superti-Furga G, Sievers S, Forrester A, Laraia L, Waldmann H, Winter GE. Orpinolide disrupts a leukemic dependency on cholesterol transport by inhibiting OSBP. Nat Chem Biol 2024:10.1038/s41589-024-01614-4. [PMID: 38907113 DOI: 10.1038/s41589-024-01614-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/10/2024] [Indexed: 06/23/2024]
Abstract
Metabolic alterations in cancer precipitate in associated dependencies that can be therapeutically exploited. To meet this goal, natural product-inspired small molecules can provide a resource of invaluable chemotypes. Here, we identify orpinolide, a synthetic withanolide analog with pronounced antileukemic properties, via orthogonal chemical screening. Through multiomics profiling and genome-scale CRISPR-Cas9 screens, we identify that orpinolide disrupts Golgi homeostasis via a mechanism that requires active phosphatidylinositol 4-phosphate signaling at the endoplasmic reticulum-Golgi membrane interface. Thermal proteome profiling and genetic validation studies reveal the oxysterol-binding protein OSBP as the direct and phenotypically relevant target of orpinolide. Collectively, these data reaffirm sterol transport as a therapeutically actionable dependency in leukemia and motivate ensuing translational investigation via the probe-like compound orpinolide.
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Affiliation(s)
- Marko Cigler
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Hana Imrichova
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Fabian Frommelt
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Lucie Caramelle
- Unit of Research of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Laura Depta
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Andrea Rukavina
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Chrysanthi Kagiou
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - J Thomas Hannich
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Cristina Mayor-Ruiz
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- IRB Barcelona-Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Sonja Sievers
- Department of Chemical Biology, Max-Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Alison Forrester
- Unit of Research of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Luca Laraia
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Herbert Waldmann
- Department of Chemical Biology, Max-Planck Institute of Molecular Physiology, Dortmund, Germany.
| | - Georg E Winter
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
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4
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He N, Depta L, Rossetti C, Caramelle L, Cigler M, Bryce-Rogers HP, Michon M, Rafn Dan O, Hoock J, Barbier J, Gillet D, Forrester A, Winter GE, Laraia L. Inhibition of OSBP blocks retrograde trafficking by inducing partial Golgi degradation. Nat Chem Biol 2024:10.1038/s41589-024-01653-x. [PMID: 38907112 DOI: 10.1038/s41589-024-01653-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/16/2024] [Indexed: 06/23/2024]
Abstract
Sterol-binding proteins are important regulators of lipid homeostasis and membrane integrity; however, the discovery of selective modulators can be challenging due to structural similarities in the sterol-binding domains. We report the discovery of potent and selective inhibitors of oxysterol-binding protein (OSBP), which we term oxybipins. Sterol-containing chemical chimeras aimed at identifying new sterol-binding proteins by targeted degradation, led to a significant reduction in levels of Golgi-associated proteins. The degradation occurred in lysosomes, concomitant with changes in protein glycosylation, indicating that the degradation of Golgi proteins was a downstream effect. By establishing a sterol transport protein biophysical assay panel, we discovered that the oxybipins potently inhibited OSBP, resulting in blockage of retrograde trafficking and attenuating Shiga toxin toxicity. As the oxybipins do not target other sterol transporters and only stabilized OSBP in intact cells, we advocate their use as tools to study OSBP function and therapeutic relevance.
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Affiliation(s)
- Nianzhe He
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Laura Depta
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Cecilia Rossetti
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Lucie Caramelle
- Unit of Research of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), Université de Namur ASBL, Namur, Belgium
| | - Marko Cigler
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | | | - Marine Michon
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, Gif-sur-Yvette, France
| | - Oliver Rafn Dan
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Joseph Hoock
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
| | - Julien Barbier
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, Gif-sur-Yvette, France
| | - Daniel Gillet
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, Gif-sur-Yvette, France
| | - Alison Forrester
- Unit of Research of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), Université de Namur ASBL, Namur, Belgium
| | - Georg E Winter
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Luca Laraia
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark.
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5
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Chen PHB, Baskin JM. All roads lead to OSBP. Nat Chem Biol 2024:10.1038/s41589-024-01639-9. [PMID: 38907111 DOI: 10.1038/s41589-024-01639-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Affiliation(s)
- Po-Hsun Brian Chen
- Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY, USA
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Jeremy M Baskin
- Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY, USA.
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA.
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6
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Bretou M, Sannerud R, Escamilla-Ayala A, Leroy T, Vrancx C, Van Acker ZP, Perdok A, Vermeire W, Vorsters I, Van Keymolen S, Maxson M, Pavie B, Wierda K, Eskelinen EL, Annaert W. Accumulation of APP C-terminal fragments causes endolysosomal dysfunction through the dysregulation of late endosome to lysosome-ER contact sites. Dev Cell 2024; 59:1571-1592.e9. [PMID: 38626765 DOI: 10.1016/j.devcel.2024.03.030] [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: 10/18/2021] [Revised: 11/02/2023] [Accepted: 03/20/2024] [Indexed: 04/18/2024]
Abstract
Neuronal endosomal and lysosomal abnormalities are among the early changes observed in Alzheimer's disease (AD) before plaques appear. However, it is unclear whether distinct endolysosomal defects are temporally organized and how altered γ-secretase function or amyloid precursor protein (APP) metabolism contribute to these changes. Inhibiting γ-secretase chronically, in mouse embryonic fibroblast and hippocampal neurons, led to a gradual endolysosomal collapse initiated by decreased lysosomal calcium and increased cholesterol, causing downstream defects in endosomal recycling and maturation. This endolysosomal demise is γ-secretase dependent, requires membrane-tethered APP cytoplasmic domains, and is rescued by APP depletion. APP C-terminal fragments (CTFs) localized to late endosome/lysosome-endoplasmic reticulum contacts; an excess of APP-CTFs herein reduced lysosomal Ca2+ refilling from the endoplasmic reticulum, promoting cholesterol accretion. Tonic regulation by APP-CTFs provides a mechanistic explanation for their cellular toxicity: failure to timely degrade APP-CTFs sustains downstream signaling, instigating lysosomal dyshomeostasis, as observed in prodromal AD. This is the opposite of substrates such as Notch, which require intramembrane proteolysis to initiate signaling.
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Affiliation(s)
- Marine Bretou
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Ragna Sannerud
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | | | - Tom Leroy
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Céline Vrancx
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Zoë P Van Acker
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Anika Perdok
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Wendy Vermeire
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Inge Vorsters
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Sophie Van Keymolen
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Michelle Maxson
- Cell Biology Program, The Hospital for Sick Children, Department of Biochemistry, University of Toronto, Toronto, Canada
| | - Benjamin Pavie
- VIB-BioImaging Core, VIB-Center for Brain and Disease Research, Leuven, Belgium
| | - Keimpe Wierda
- Electrophysiology Expertise Unit, VIB-Center for Brain and Disease Research, Leuven, Belgium
| | | | - Wim Annaert
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, Leuven, Belgium; Department of Neurosciences, KU Leuven, Leuven, Belgium.
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7
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Wang X, Xu P, Bentley-DeSousa A, Hancock-Cerutti W, Cai S, Johnson BT, Tonelli F, Talaia G, Alessi DR, Ferguson SM, De Camilli P. Lysosome damage triggers acute formation of ER to lysosomes membrane tethers mediated by the bridge-like lipid transport protein VPS13C. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.08.598070. [PMID: 38895395 PMCID: PMC11185796 DOI: 10.1101/2024.06.08.598070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Based on genetic studies, lysosome dysfunction is thought to play a pathogenetic role in Parkinson's disease (PD). Here we show that VPS13C, a bridge-like lipid transport protein and a PD gene, is a sensor of lysosome stress/damage. Upon lysosome membrane perturbation, VPS13C rapidly relocates from the cytosol to the surface of lysosomes where it tethers their membranes to the ER. This recruitment depends on Rab7 and requires release of a brake, most likely an intramolecular interaction within VPS13C, which hinders access of its VAB domain to lysosome-bound Rab7. While another PD protein, LRRK2, is also recruited to stressed/damaged lysosomes, its recruitment occurs at much later stages and by different mechanisms. Given the putative role of VPS13 proteins in bulk lipid transport, these findings suggest lipid delivery to lysosomes by VPS13C is part of an early response to lysosome damage.
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8
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Zhou Y, Tao L, Qiu J, Xu J, Yang X, Zhang Y, Tian X, Guan X, Cen X, Zhao Y. Tumor biomarkers for diagnosis, prognosis and targeted therapy. Signal Transduct Target Ther 2024; 9:132. [PMID: 38763973 PMCID: PMC11102923 DOI: 10.1038/s41392-024-01823-2] [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: 06/05/2023] [Revised: 03/07/2024] [Accepted: 04/02/2024] [Indexed: 05/21/2024] Open
Abstract
Tumor biomarkers, the substances which are produced by tumors or the body's responses to tumors during tumorigenesis and progression, have been demonstrated to possess critical and encouraging value in screening and early diagnosis, prognosis prediction, recurrence detection, and therapeutic efficacy monitoring of cancers. Over the past decades, continuous progress has been made in exploring and discovering novel, sensitive, specific, and accurate tumor biomarkers, which has significantly promoted personalized medicine and improved the outcomes of cancer patients, especially advances in molecular biology technologies developed for the detection of tumor biomarkers. Herein, we summarize the discovery and development of tumor biomarkers, including the history of tumor biomarkers, the conventional and innovative technologies used for biomarker discovery and detection, the classification of tumor biomarkers based on tissue origins, and the application of tumor biomarkers in clinical cancer management. In particular, we highlight the recent advancements in biomarker-based anticancer-targeted therapies which are emerging as breakthroughs and promising cancer therapeutic strategies. We also discuss limitations and challenges that need to be addressed and provide insights and perspectives to turn challenges into opportunities in this field. Collectively, the discovery and application of multiple tumor biomarkers emphasized in this review may provide guidance on improved precision medicine, broaden horizons in future research directions, and expedite the clinical classification of cancer patients according to their molecular biomarkers rather than organs of origin.
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Affiliation(s)
- Yue Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lei Tao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiahao Qiu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Xu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xinyu Yang
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yu Zhang
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
- School of Medicine, Tibet University, Lhasa, 850000, China
| | - Xinyu Tian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xinqi Guan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaobo Cen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yinglan Zhao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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9
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He N, Depta L, Sievers S, Laraia L. Fluorescent probes and degraders of the sterol transport protein Aster-A. Bioorg Med Chem 2024; 103:117673. [PMID: 38518734 DOI: 10.1016/j.bmc.2024.117673] [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: 01/12/2024] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/24/2024]
Abstract
Our understanding of sterol transport proteins (STPs) has increased exponentially in the last decades with advances in the cellular and structural biology of these important proteins. However, small molecule probes have only recently been developed for a few selected STPs. Here we describe the synthesis and evaluation of potential proteolysis-targeting chimeras (PROTACs) based on inhibitors of the STP Aster-A. Based on the reported Aster-A inhibitor autogramin-2, ten PROTACs were synthesized. Pomalidomide-based PROTACs functioned as fluorescent probes due to the intrinsic fluorescent properties of the aminophthalimide core, which in some cases was significantly enhanced upon Aster-A binding. Most PROTACs maintained excellent binary affinity to Aster-A, and one compound, NGF3, showed promising Aster-A degradation in cells. The tools developed here lay the foundation for optimizing Aster-A fluorescent probes and degraders and studying its activity and function in vitro and in cells.
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Affiliation(s)
- Nianzhe He
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs. Lyngby, Denmark
| | - Laura Depta
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs. Lyngby, Denmark
| | - Sonja Sievers
- Max Planck Institute of molecular physiology, Otto-Hahn-Strasse 11, Dortmund, Germany
| | - Luca Laraia
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs. Lyngby, Denmark.
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10
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Doyle CP, Timple L, Hammond GRV. OSBP is a major determinant of Golgi phosphatidylinositol 4-phosphate homeostasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.21.572879. [PMID: 38187665 PMCID: PMC10769437 DOI: 10.1101/2023.12.21.572879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
The lipid phosphatidylinositol 4-phosphate (PI4P) plays a master regulatory role at Golgi membranes, orchestrating membrane budding, non-vesicular lipid transport and membrane organization. It follows that harmonious Golgi function requires strictly maintained PI4P homeostasis. One of the most abundant PI4P effector proteins is the oxysterol binding protein (OSBP), a lipid transfer protein that exchanges trans Golgi PI4P for ER cholesterol. Although this protein consumes PI4P as part of its lipid anti-porter function, whether it actively contributes to Golgi PI4P homeostasis has been questioned. Here, we employed a series of acute and chronic genetic manipulations, together with orthogonal targeting of OSBP, to interrogate its control over Golgi PI4P abundance. Modulating OSBP levels at ER:Golgi membrane contact sites produces reciprocal changes in PI4P levels. Additionally, we observe that OSBP has a high capacity for PI4P turnover, even at orthogonal organelle membranes. However, despite also visiting the plasma membrane, endogenous OSBP makes no impact on PI4P levels in this compartment. We conclude that OSBP is a major determinant of Golgi PI4P homeostasis.
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Affiliation(s)
- Colleen P Doyle
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Liz Timple
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Gerald R V Hammond
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
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11
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Kemmoku H, Takahashi K, Mukai K, Mori T, Hirosawa KM, Kiku F, Uchida Y, Kuchitsu Y, Nishioka Y, Sawa M, Kishimoto T, Tanaka K, Yokota Y, Arai H, Suzuki KGN, Taguchi T. Single-molecule localization microscopy reveals STING clustering at the trans-Golgi network through palmitoylation-dependent accumulation of cholesterol. Nat Commun 2024; 15:220. [PMID: 38212328 PMCID: PMC10784591 DOI: 10.1038/s41467-023-44317-5] [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: 05/01/2023] [Accepted: 12/07/2023] [Indexed: 01/13/2024] Open
Abstract
Stimulator of interferon genes (STING) is critical for the type I interferon response to pathogen- or self-derived DNA in the cytosol. STING may function as a scaffold to activate TANK-binding kinase 1 (TBK1), but direct cellular evidence remains lacking. Here we show, using single-molecule imaging of STING with enhanced time resolutions down to 5 ms, that STING becomes clustered at the trans-Golgi network (about 20 STING molecules per cluster). The clustering requires STING palmitoylation and the Golgi lipid order defined by cholesterol. Single-molecule imaging of TBK1 reveals that STING clustering enhances the association with TBK1. We thus provide quantitative proof-of-principle for the signaling STING scaffold, reveal the mechanistic role of STING palmitoylation in the STING activation, and resolve the long-standing question of the requirement of STING translocation for triggering the innate immune signaling.
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Affiliation(s)
- Haruka Kemmoku
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Kanoko Takahashi
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Kojiro Mukai
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Toshiki Mori
- United Graduate School of Agricultural Science, Gifu University, Gifu, Japan
| | | | - Fumika Kiku
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Yasunori Uchida
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yoshihiko Kuchitsu
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yu Nishioka
- Research and Development, Carna Biosciences, Inc., Kobe, Japan
| | - Masaaki Sawa
- Research and Development, Carna Biosciences, Inc., Kobe, Japan
| | - Takuma Kishimoto
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido, Japan
| | - Kazuma Tanaka
- Division of Molecular Interaction, Institute for Genetic Medicine, Hokkaido University Graduate School of Life Science, Sapporo, Hokkaido, Japan
| | - Yasunari Yokota
- Department of EECE, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Hiroyuki Arai
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Kenichi G N Suzuki
- Institute for Glyco-core Research (iGCORE), Gifu University, Gifu, Japan.
- Division of Advanced Bioimaging, National Cancer Center Research Institute, Tokyo, Japan.
| | - Tomohiko Taguchi
- Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan.
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12
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Doyle CP, Timple L, Hammond GRV. OSBP is a Major Determinant of Golgi Phosphatidylinositol 4-Phosphate Homeostasis. CONTACT (THOUSAND OAKS (VENTURA COUNTY, CALIF.)) 2024; 7:25152564241232196. [PMID: 38405037 PMCID: PMC10893830 DOI: 10.1177/25152564241232196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/27/2024]
Abstract
The lipid phosphatidylinositol 4-phosphate (PI4P) plays a master regulatory role at Golgi membranes, orchestrating membrane budding, non-vesicular lipid transport and membrane organization. It follows that harmonious Golgi function requires strictly maintained PI4P homeostasis. One of the most abundant PI4P effector proteins is the oxysterol binding protein (OSBP), a lipid transfer protein that exchanges trans-Golgi PI4P for ER cholesterol. Although this protein consumes PI4P as part of its lipid anti-porter function, whether it actively contributes to Golgi PI4P homeostasis has been questioned. Here, we employed a series of acute and chronic genetic manipulations, together with orthogonal targeting of OSBP, to interrogate its control over Golgi PI4P abundance. Modulating OSBP levels at ER:Golgi membrane contact sites produces reciprocal changes in PI4P levels. Additionally, we observe that OSBP has a high capacity for PI4P turnover, even at orthogonal organelle membranes. However, despite also visiting the plasma membrane, endogenous OSBP makes no impact on PI4P levels in this compartment. We conclude that OSBP is a major determinant of Golgi PI4P homeostasis.
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Affiliation(s)
- Colleen P. Doyle
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Liz Timple
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Gerald R. V. Hammond
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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13
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Kovács D, Gay AS, Debayle D, Abélanet S, Patel A, Mesmin B, Luton F, Antonny B. Lipid exchange at ER-trans-Golgi contact sites governs polarized cargo sorting. J Cell Biol 2024; 223:e202307051. [PMID: 37991810 PMCID: PMC10664280 DOI: 10.1083/jcb.202307051] [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: 07/11/2023] [Revised: 10/18/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023] Open
Abstract
Oxysterol binding protein (OSBP) extracts cholesterol from the ER to deliver it to the TGN via counter exchange and subsequent hydrolysis of the phosphoinositide PI(4)P. Here, we show that this pathway is essential in polarized epithelial cells where it contributes not only to the proper subcellular distribution of cholesterol but also to the trans-Golgi sorting and trafficking of numerous plasma membrane cargo proteins with apical or basolateral localization. Reducing the expression of OSBP, blocking its activity, or inhibiting a PI4Kinase that fuels OSBP with PI(4)P abolishes the epithelial phenotype. Waves of cargo enrichment in the TGN in phase with OSBP and PI(4)P dynamics suggest that OSBP promotes the formation of lipid gradients along the TGN, which helps cargo sorting. During their transient passage through the trans-Golgi, polarized plasma membrane proteins get close to OSBP but fail to be sorted when OSBP is silenced. Thus, OSBP lipid exchange activity is decisive for polarized cargo sorting and distribution in epithelial cells.
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Affiliation(s)
- Dávid Kovács
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Anne-Sophie Gay
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Delphine Debayle
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Sophie Abélanet
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Amanda Patel
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Bruno Mesmin
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Frédéric Luton
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Bruno Antonny
- Université Côte d’Azur and CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
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14
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Olkkonen VM, Ikonen E. Getting to Grips with the Oxysterol-Binding Protein Family - a Forty Year Perspective. CONTACT (THOUSAND OAKS (VENTURA COUNTY, CALIF.)) 2024; 7:25152564241273598. [PMID: 39210909 PMCID: PMC11359446 DOI: 10.1177/25152564241273598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 09/04/2024]
Abstract
This review discusses how research around the oxysterol-binding protein family has evolved. We briefly summarize how this protein family, designated OSBP-related (ORP) or OSBP-like (OSBPL) proteins, was discovered, how protein domains highly conserved among family members between taxa paved the way for understanding their mechanisms of action, and how insights into protein structural and functional features help to understand their versatility as lipid transporters. We also discuss questions and future avenues of research opened by these findings. The investigations on oxysterol-binding protein family serve as a real-life example of the notion that science often advances as a collective effort of multiple lines of enquiry, including serendipitous routes. While original articles invariably explain the motivation of the research undertaken in rational terms, the actual paths to findings may be less intentional. Fortunately, this does not reduce the impact of the discoveries made. Besides hopefully providing a useful account of ORP family proteins, we aim to convey this message.
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Affiliation(s)
- Vesa M. Olkkonen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Elina Ikonen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Faculty of Medicine, Dept of Anatomy and Stem Cells and Metabolism Research Program, University of Helsinki, Helsinki, Finland
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15
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Guo W, Wang M, Yang Z, Liu D, Ma B, Zhao Y, Chen Y, Hu Y. Recent advances in small molecule and peptide inhibitors of glucose-regulated protein 78 for cancer therapy. Eur J Med Chem 2023; 261:115792. [PMID: 37690265 DOI: 10.1016/j.ejmech.2023.115792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/18/2023] [Accepted: 09/02/2023] [Indexed: 09/12/2023]
Abstract
Glucose-regulated protein 78 (GRP78) is one of key endoplasmic reticulum (ER) chaperone proteins that regulates the unfolded protein response (UPR) to maintain ER homeostasis. As a core factor in the regulation of the UPR, GRP78 takes a critical part in the cellular processes required for tumorigenesis, such as proliferation, metastasis, anti-apoptosis, immune escape and chemoresistance. Overexpression of GRP78 is closely correlated with tumorigenesis and poor prognosis in various malignant tumors. Targeting GRP78 is regarded as a potentially promising therapeutic strategy for cancer therapy. Although none of the GRP78 inhibitors have been approved to date, there have been several studies of GRP78 inhibitors. Herein, we comprehensively review the structure, physiological functions of GRP78 and the recent progress of GRP78 inhibitors, and discuss the structures, in vitro and in vivo efficacies, and merits and demerits of these inhibitors to inspire further research. Additionally, the feasibility of GRP78-targeting proteolysis-targeting chimeras (PROTACs), disrupting GRP78 cochaperone interactions, or covalent inhibition are also discussed as novel strategies for drugs discovery targeting GRP78, with the hope that these strategies can provide new opportunities for targeted GRP78 antitumor therapy.
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Affiliation(s)
- Weikai Guo
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Manjie Wang
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Zhengfan Yang
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Danyang Liu
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Borui Ma
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Yanqun Zhao
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China
| | - Yihua Chen
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China.
| | - Yanzhong Hu
- The Jointed National Laboratory of Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Henan University, Kaifeng, 475004, China.
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16
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Gabbianelli R, Shahar E, de Simone G, Rucci C, Bordoni L, Feliziani G, Zhao F, Ferrati M, Maggi F, Spinozzi E, Mahajna J. Plant-Derived Epi-Nutraceuticals as Potential Broad-Spectrum Anti-Viral Agents. Nutrients 2023; 15:4719. [PMID: 38004113 PMCID: PMC10675658 DOI: 10.3390/nu15224719] [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: 10/17/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Although the COVID-19 pandemic appears to be diminishing, the emergence of SARS-CoV-2 variants represents a threat to humans due to their inherent transmissibility, immunological evasion, virulence, and invulnerability to existing therapies. The COVID-19 pandemic affected more than 500 million people and caused over 6 million deaths. Vaccines are essential, but in circumstances in which vaccination is not accessible or in individuals with compromised immune systems, drugs can provide additional protection. Targeting host signaling pathways is recommended due to their genomic stability and resistance barriers. Moreover, targeting host factors allows us to develop compounds that are effective against different viral variants as well as against newly emerging virus strains. In recent years, the globe has experienced climate change, which may contribute to the emergence and spread of infectious diseases through a variety of factors. Warmer temperatures and changing precipitation patterns can increase the geographic range of disease-carrying vectors, increasing the risk of diseases spreading to new areas. Climate change may also affect vector behavior, leading to a longer breeding season and more breeding sites for disease vectors. Climate change may also disrupt ecosystems, bringing humans closer to wildlife that transmits zoonotic diseases. All the above factors may accelerate the emergence of new viral epidemics. Plant-derived products, which have been used in traditional medicine for treating pathological conditions, offer structurally novel therapeutic compounds, including those with anti-viral activity. In addition, plant-derived bioactive substances might serve as the ideal basis for developing sustainable/efficient/cost-effective anti-viral alternatives. Interest in herbal antiviral products has increased. More than 50% of approved drugs originate from herbal sources. Plant-derived compounds offer diverse structures and bioactive molecules that are candidates for new drug development. Combining these therapies with conventional drugs could improve patient outcomes. Epigenetics modifications in the genome can affect gene expression without altering DNA sequences. Host cells can use epigenetic gene regulation as a mechanism to silence incoming viral DNA molecules, while viruses recruit cellular epitranscriptomic (covalent modifications of RNAs) modifiers to increase the translational efficiency and transcript stability of viral transcripts to enhance viral gene expression and replication. Moreover, viruses manipulate host cells' epigenetic machinery to ensure productive viral infections. Environmental factors, such as natural products, may influence epigenetic modifications. In this review, we explore the potential of plant-derived substances as epigenetic modifiers for broad-spectrum anti-viral activity, reviewing their modulation processes and anti-viral effects on DNA and RNA viruses, as well as addressing future research objectives in this rapidly emerging field.
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Affiliation(s)
- Rosita Gabbianelli
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Ehud Shahar
- Department of Nutrition and Natural Products, Migal—Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Department of Biotechnology, Tel-Hai College, Kiryat Shmona 1220800, Israel
| | - Gaia de Simone
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Chiara Rucci
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Laura Bordoni
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Giulia Feliziani
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Fanrui Zhao
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Marta Ferrati
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Filippo Maggi
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Eleonora Spinozzi
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Jamal Mahajna
- Department of Nutrition and Natural Products, Migal—Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Department of Biotechnology, Tel-Hai College, Kiryat Shmona 1220800, Israel
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17
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Jézéquel G, Rampal C, Guimard C, Kovacs D, Polidori J, Bigay J, Bignon J, Askenatzis L, Litaudon M, Pham VC, Huong DTM, Nguyen AL, Pruvost A, Virolle T, Mesmin B, Desrat S, Antonny B, Roussi F. Structure-Based Design of a Lead Compound Derived from Natural Schweinfurthins with Antitumor Properties That Target Oxysterol-Binding Protein. J Med Chem 2023; 66:14208-14220. [PMID: 37795600 DOI: 10.1021/acs.jmedchem.3c01298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Schweinfurthins (SWs) are naturally occurring prenylated stilbenes with promising anticancer properties. They act through a novel mechanism of action similar to that of other families of natural compounds. Their known target, oxysterol-binding protein (OSBP), plays a crucial role in controlling the intracellular distribution of cholesterol. We synthesized 15 analogues of SWs and demonstrated for the first time that their cytotoxicity as well as that of natural derivatives correlates with their affinity for OSBP. Through this extensive SAR study, we selected one synthetic analogue obtained in one step from SW-G. Using its fluorescence properties, we showed that this compound recapitulates the effect of natural SW-G in cells and confirmed that it leads to cell death via the same mechanism. Finally, after pilot PK experiments, we provided the first evidence of its in vivo efficacy in combination with temozolomide in a patient-derived glioblastoma xenograft model.
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Affiliation(s)
- Gwenaëlle Jézéquel
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Céline Rampal
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Carole Guimard
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - David Kovacs
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Joël Polidori
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560 Valbonne, France
| | - Joëlle Bigay
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560 Valbonne, France
| | - Jérôme Bignon
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Laurie Askenatzis
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Marc Litaudon
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Van-Cuong Pham
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, 10000 Hanoi, Vietnam
| | - Doan T M Huong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, 10000 Hanoi, Vietnam
| | - Anvi Laetitia Nguyen
- CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, SPI, 91191 Gif-sur-Yvette, France
| | - Alain Pruvost
- CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, SPI, 91191 Gif-sur-Yvette, France
| | - Thierry Virolle
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose, U1091, UMR7277, Parc Valrose, 06000 Nice,France
| | - Bruno Mesmin
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560 Valbonne, France
| | - Sandy Desrat
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Bruno Antonny
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560 Valbonne, France
| | - Fanny Roussi
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
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18
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Naito T, Yang H, Koh DHZ, Mahajan D, Lu L, Saheki Y. Regulation of cellular cholesterol distribution via non-vesicular lipid transport at ER-Golgi contact sites. Nat Commun 2023; 14:5867. [PMID: 37735529 PMCID: PMC10514280 DOI: 10.1038/s41467-023-41213-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
Abnormal distribution of cellular cholesterol is associated with numerous diseases, including cardiovascular and neurodegenerative diseases. Regulated transport of cholesterol is critical for maintaining its proper distribution in the cell, yet the underlying mechanisms remain unclear. Here, we show that lipid transfer proteins, namely ORP9, OSBP, and GRAMD1s/Asters (GRAMD1a/GRAMD1b/GRAMD1c), control non-vesicular cholesterol transport at points of contact between the ER and the trans-Golgi network (TGN), thereby maintaining cellular cholesterol distribution. ORP9 localizes to the TGN via interaction between its tandem α-helices and ORP10/ORP11. ORP9 extracts PI4P from the TGN to prevent its overaccumulation and suppresses OSBP-mediated PI4P-driven cholesterol transport to the Golgi. By contrast, GRAMD1s transport excess cholesterol from the Golgi to the ER, thereby preventing its build-up. Cells lacking ORP9 exhibit accumulation of cholesterol at the Golgi, which is further enhanced by additional depletion of GRAMD1s with major accumulation in the plasma membrane. This is accompanied by chronic activation of the SREBP-2 signalling pathway. Our findings reveal the importance of regulated lipid transport at ER-Golgi contacts for maintaining cellular cholesterol distribution and homeostasis.
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Affiliation(s)
- Tomoki Naito
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Haoning Yang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Dylan Hong Zheng Koh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Divyanshu Mahajan
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Lei Lu
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Yasunori Saheki
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore.
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, 860-0811, Japan.
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19
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Lin Y, Ran L, Du X, Yang H, Wu Y. Oxysterol-Binding Protein: new insights into lipid transport functions and human diseases. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159365. [PMID: 37455011 DOI: 10.1016/j.bbalip.2023.159365] [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: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Oxysterol-binding protein (OSBP) mediates lipid exchange between organelles at membrane contact sites, thereby regulating lipid dynamics and homeostasis. How OSBP's lipid transfer function impacts health and disease remain to be elucidated. In this review, we first summarize the structural characteristics and lipid transport functions of OSBP, and then focus on recent progresses linking OSBP with fatty liver disease, diabetes, lysosome-related diseases, cancer and viral infections, with the aim of discovering novel therapeutic strategies for common human diseases.
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Affiliation(s)
- Yani Lin
- Shandong Provincial Hospital, School of Laboratory Animal & Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250021, China
| | - Liyuan Ran
- Shandong Provincial Hospital, School of Laboratory Animal & Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250021, China; Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Ximing Du
- School of Biotechnology and Biomolecular Sciences, the University of New South Wales, Sydney, NSW 2052, Australia
| | - Hongyuan Yang
- School of Biotechnology and Biomolecular Sciences, the University of New South Wales, Sydney, NSW 2052, Australia.
| | - Yingjie Wu
- Shandong Provincial Hospital, School of Laboratory Animal & Shandong Laboratory Animal Center, Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250021, China; Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Dalian Medical University, Dalian, Liaoning 116044, China; Department of Molecular Pathobiology, New York University College of Dentistry, New York 10010, USA.
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20
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Subra M, Antonny B, Mesmin B. New insights into the OSBP‒VAP cycle. Curr Opin Cell Biol 2023; 82:102172. [PMID: 37245352 DOI: 10.1016/j.ceb.2023.102172] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/16/2023] [Accepted: 04/24/2023] [Indexed: 05/30/2023]
Abstract
VAP-A is a major endoplasmic reticulum (ER) receptor that allows this organelle to engage numerous membrane contact sites with other organelles. One highly studied example is the formation of contact sites through VAP-A interaction with Oxysterol-binding protein (OSBP). This lipid transfer protein transports cholesterol from the ER to the trans-Golgi network owing to the counter-exchange of the phosphoinositide PI(4)P. In this review, we highlight recent studies that advance our understanding of the OSBP cycle and extend the model of lipid exchange to other cellular contexts and other physiological and pathological conditions.
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Affiliation(s)
- Mélody Subra
- Université Côte d'Azur, Inserm, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, 660 Route des Lucioles, 06560, Valbonne, France
| | - Bruno Antonny
- Université Côte d'Azur, Inserm, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, 660 Route des Lucioles, 06560, Valbonne, France.
| | - Bruno Mesmin
- Université Côte d'Azur, Inserm, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, 660 Route des Lucioles, 06560, Valbonne, France.
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21
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Khine MN, Sakurai K. Golgi-Targeting Anticancer Natural Products. Cancers (Basel) 2023; 15:cancers15072086. [PMID: 37046746 PMCID: PMC10093635 DOI: 10.3390/cancers15072086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/12/2023] [Accepted: 02/15/2023] [Indexed: 04/03/2023] Open
Abstract
The Golgi apparatus plays an important role in maintaining cell homeostasis by serving as a biosynthetic center for glycans, lipids and post-translationally modified proteins and as a sorting center for vesicular transport of proteins to specific destinations. Moreover, it provides a signaling hub that facilitates not only membrane trafficking processes but also cellular response pathways to various types of stresses. Altered signaling at the Golgi apparatus has emerged as a key regulator of tumor growth and survival. Among the small molecules that can specifically perturb or modulate Golgi proteins and organization, natural products with anticancer property have been identified as powerful chemical probes in deciphering Golgi-related pathways and, in particular, recently described Golgi stress response pathways. In this review, we highlight a set of Golgi-targeting natural products that enabled the characterization of the Golgi-mediated signaling events leading to cancer cell death and discuss the potential for selectively exploiting these pathways for the development of novel chemotherapeutic agents.
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22
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Severance ZC, Nuñez JI, Le-McClain AT, Malinky CA, Bensen RC, Fogle RS, Manginelli GW, Sakers SH, Falcon EC, Bui RH, Snead KJ, Bourne CR, Burgett AWG. Structure-Activity Relationships of Ligand Binding to Oxysterol-Binding Protein (OSBP) and OSBP-Related Protein 4. J Med Chem 2023; 66:3866-3875. [PMID: 36916802 PMCID: PMC10786236 DOI: 10.1021/acs.jmedchem.2c01025] [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] [Indexed: 03/16/2023]
Abstract
Oxysterol-binding protein (OSBP) and OSBP-related protein 4 (ORP4) have emerged as potentially druggable targets in antiviral and precision cancer drug development. Multiple structurally diverse small molecules function through targeting the OSBP/ORP family of proteins, including the antiviral steroidal compounds OSW-1 and T-00127-HEV2. Here, the structure-activity relationships of oxysterols and related compound binding to human OSBP and ORP4 are characterized. Oxysterols with hydroxylation at various side chain positions (i.e., C-20, C-24, C-25, and C-27)─but not C-22─confer high affinity interactions with OSBP and ORP4. A library of 20(S)-hydroxycholesterol analogues with varying sterol side chains reveal that side chain length modifications are not well tolerated for OSBP and ORP4 interactions. This side chain requirement is contradicted by the high affinity binding of T-00127-HEV2, a steroidal compound lacking the side chain. The binding results, in combination with docking studies using homology models of OSBP and ORP4, suggest multiple modes of steroidal ligand binding to OSBP and ORP4.
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Affiliation(s)
- Zachary C Severance
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, United States
| | - Juan I Nuñez
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Anh T Le-McClain
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Cori A Malinky
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Ryan C Bensen
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Robert S Fogle
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, United States
| | - Gianni W Manginelli
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Sophia H Sakers
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Emily C Falcon
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, United States
| | - Richard Hoang Bui
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, United States
| | - Kevin J Snead
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Christina R Bourne
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Anthony W G Burgett
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, United States
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, United States
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23
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Sung DB, Lee JS. Natural-product-based fluorescent probes: recent advances and applications. RSC Med Chem 2023; 14:412-432. [PMID: 36970151 PMCID: PMC10034199 DOI: 10.1039/d2md00376g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Fluorescent probes are attractive tools for biology, drug discovery, disease diagnosis, and environmental analysis. In bioimaging, these easy-to-operate and inexpensive probes can be used to detect biological substances, obtain detailed cell images, track in vivo biochemical reactions, and monitor disease biomarkers without damaging biological samples. Over the last few decades, natural products have attracted extensive research interest owing to their great potential as recognition units for state-of-the-art fluorescent probes. This review describes representative natural-product-based fluorescent probes and recent discoveries, with a particular focus on fluorescent bioimaging and biochemical studies.
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Affiliation(s)
- Dan-Bi Sung
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology Busan Republic of Korea
| | - Jong Seok Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology Busan Republic of Korea
- Department of Marine Biotechnology, Korea University of Science and Technology Daejeon Republic of Korea
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24
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Singaram I, Sharma A, Pant S, Lihan M, Park MJ, Pergande M, Buwaneka P, Hu Y, Mahmud N, Kim YM, Cologna S, Gevorgyan V, Khan I, Tajkhorshid E, Cho W. Targeting lipid-protein interaction to treat Syk-mediated acute myeloid leukemia. Nat Chem Biol 2023; 19:239-250. [PMID: 36229686 PMCID: PMC9898191 DOI: 10.1038/s41589-022-01150-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 08/25/2022] [Indexed: 02/06/2023]
Abstract
Membrane lipids control the cellular activity of kinases containing the Src homology 2 (SH2) domain through direct lipid-SH2 domain interactions. Here we report development of new nonlipidic small molecule inhibitors of the lipid-SH2 domain interaction that block the cellular activity of their host proteins. As a pilot study, we evaluated the efficacy of lipid-SH2 domain interaction inhibitors for spleen tyrosine kinase (Syk), which is implicated in hematopoietic malignancies, including acute myeloid leukemia (AML). An optimized inhibitor (WC36) specifically and potently suppressed oncogenic activities of Syk in AML cell lines and patient-derived AML cells. Unlike ATP-competitive Syk inhibitors, WC36 was refractory to de novo and acquired drug resistance due to its ability to block not only the Syk kinase activity, but also its noncatalytic scaffolding function that is linked to drug resistance. Collectively, our study shows that targeting lipid-protein interaction is a powerful approach to developing new small molecule drugs.
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Affiliation(s)
- Indira Singaram
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Ashutosh Sharma
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Shashank Pant
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Muyun Lihan
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Mi-Jeong Park
- Department of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Melissa Pergande
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Pawanthi Buwaneka
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Yusi Hu
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Nadim Mahmud
- Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, U.S.A
| | - You-Me Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Stephanie Cologna
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, U.S.A
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Texas at Dallas, Dallas, TX 75080, U.S.A
| | - Irum Khan
- Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, U.S.A
| | - Emad Tajkhorshid
- NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Wonhwa Cho
- Department of Chemistry, University of Illinois Chicago (UIC), Chicago, IL, USA.
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25
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Balla T, Gulyas G, Mandal A, Alvarez-Prats A, Niu Y, Kim YJ, Pemberton J. Roles of Phosphatidylinositol 4-Phosphorylation in Non-vesicular Cholesterol Trafficking. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1422:327-352. [PMID: 36988887 PMCID: PMC11135459 DOI: 10.1007/978-3-031-21547-6_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Cholesterol (Chol) is an essential component of all eukaryotic cell membranes that affects the function of numerous peripheral as well as integral membrane proteins. Chol is synthesized in the ER, but it is selectively enriched within the plasma membrane (PM) and other endomembranes, which requires Chol to cross the aqueous phase of the cytoplasm. In addition to the classical vesicular trafficking pathways that are known to facilitate the bulk transport of membrane intermediates, Chol is also transported via non-vesicular lipid transfer proteins that work primarily within specialized membrane contact sites. Some of these transport pathways work against established concentration gradients and hence require energy. Recent studies highlight the unique role of phosphoinositides (PPIns), and phosphatidylinositol 4-phosphate (PI4P) in particular, for the control of non-vesicular Chol transport. In this chapter, we will review the emerging connection between Chol, PPIns, and lipid transfer proteins that include the important family of oxysterol-binding protein related proteins, or ORPs.
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Affiliation(s)
- Tamas Balla
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, MD, USA.
| | | | - Amrita Mandal
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, MD, USA
| | - Alejandro Alvarez-Prats
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, MD, USA
| | | | - Yeun Ju Kim
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, MD, USA
| | - Joshua Pemberton
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, MD, USA
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26
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Zhang R, Neighbors J, Schell T, Hohl R. Schweinfurthin induces ICD without ER stress and caspase activation. Oncoimmunology 2022; 11:2104551. [PMID: 35936984 PMCID: PMC9354771 DOI: 10.1080/2162402x.2022.2104551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Our previous study showed that one of the schweinfurthin compounds, 5’-methoxyschweinfurthin G (MeSG), not only enhances the anti-tumor effect of anti-PD1 antibody in the B16F10 murine melanoma model, but also provokes durable, protective anti-tumor immunity. Here we further investigated the mechanisms by which MeSG treatment induces immunogenic cell death (ICD). MeSG induced significant cell surface calreticulin (CRT) exposure in a time and concentration dependent manner as well as increased phagocytosis of tumor cells by dendritic cells in vitro. Interestingly, this CRT exposure differs from the canonical pathway in several aspects. MeSG does not cause ER stress and does not require PERK to induce CRT exposure. Caspase inhibitors partially rescue cells from MeSG-induced apoptosis, but fail to reduce CRT exposure. MeSG does not cause ERp57 exposure and the absence of ERp57 expression does not reduce CRT exposure. Finally, an intact ER to Golgi transport system is required for this phenomenon. These results lend support to the development of the schweinfurthin family as drugs to enhance clinical response to immunotherapy and highlight the need for additional research on the mechanisms of ICD induction.
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Affiliation(s)
| | - J.D. Neighbors
- Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA, USA
- Penn State Cancer Institute, Hershey, PA, USA
| | - T.D. Schell
- Penn State Cancer Institute, Hershey, PA, USA
- Department of Microbiology and Immunology, Penn State College of Medicine, Hershey, PA, USA
| | - R.J. Hohl
- Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA, USA
- Penn State Cancer Institute, Hershey, PA, USA
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27
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OSW-1 induces apoptosis and cyto-protective autophagy, and synergizes with chemotherapy on triple negative breast cancer metastasis. Cell Oncol (Dordr) 2022; 45:1255-1275. [PMID: 36155886 DOI: 10.1007/s13402-022-00716-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Triple-negative breast cancer (TNBC) is the most malignant subtype of breast cancer. As yet, chemotherapy with drugs such as doxorubicin is the main treatment strategy. However, drug resistance and dose-dependent toxicities restrict their clinical use. Natural products are major sources of anti-tumor drugs. OSW-1 is a natural compound with strong anti-cancer effects in several types of cancer, but its effects on the efficacy of chemotherapy in TNBC and its underlying mechanism remain unclear. METHODS The inhibitory activities of OSW-1 and its combination with several chemotherapy drugs were tested using in vitro assays and in vivo subcutaneous and metastatic mouse TNBC models. The effects of the mono- and combination treatments on TNBC cell viability, apoptosis, autophagy and related signaling pathways were assessed using MTT, flow cytometry, RNA sequencing and immunology-based assays. In addition, the in vivo inhibitory effects of OSW-1 and (combined) chemotherapies were evaluated in subcutaneous and metastatic mouse tumor models. RESULTS We found that OSW-1 induces Ca2+-dependent mitochondria-dependent intrinsic apoptosis and cyto-protective autophagy through the PI3K-Akt-mTOR pathway in TNBC cells in vitro. We also found that OSW-1 and doxorubicin exhibited strong synergistic anti-TNBC capabilities both in vivo and in vitro. Combination treatment strongly inhibited spontaneous and experimental lung metastases in 4T1 mouse models. In addition, the combination strategy of OSW-1 + Carboplatin + Docetaxel showed an excellent anti-metastatic effect in vivo. CONCLUSIONS Our data revealed the mode of action and molecular mechanism underlying the effect of OSW-1 against TNBC, and provided a useful guidance for improving the sensitivity of TNBC cells to conventional chemotherapeutic drugs, which warrants further investigation.
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28
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Taskinen JH, Ruhanen H, Matysik S, Käkelä R, Olkkonen VM. Global effects of pharmacologic inhibition of OSBP in human umbilical vein endothelial cells. Steroids 2022; 185:109053. [PMID: 35623602 DOI: 10.1016/j.steroids.2022.109053] [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: 12/17/2021] [Revised: 04/14/2022] [Accepted: 05/23/2022] [Indexed: 11/26/2022]
Abstract
Oxysterol-binding protein (OSBP) is a cholesterol/PI4P exchanger at contacts of the endoplasmic reticulum (ER) with trans-Golgi network (TGN) and endosomes. Several central endothelial cell (EC) functions depend on adequate cholesterol distribution in cellular membranes. Here we elucidated the effects of pharmacologic OSBP inhibition on the lipidome and transcriptome of human umbilical vein endothelial cells (HUVECs). OSBP was inhibited for 24 h with 25 nM Schweinfurthin G (SWG) or Orsaponin (OSW-1), followed by analyses of cellular cholesterol, 27-hydroxy-cholesterol, and triacylglycerol concentration, phosphatidylserine synthesis rate, the lipidome, as well as lipid droplet staining and western analysis of OSBP protein. Next-generation RNA sequencing of the SWG-treated and control HUVECs and angiogenesis assays were performed. Protein-normalized lipidomes of the inhibitor-treated cells revealed decreases in glycerophospholipids, the most pronounced effect being on phosphatidylserines and the rate of their synthesis, as well as increases in cholesteryl esters, triacylglycerols and lipid droplet number. Transcriptome analysis of SWG-treated cells suggested ER stress responses apparently caused by disturbed cholesterol exit from the ER, as indicated by suppression of cholesterol biosynthetic genes. OSBP was associated with the TGN in the absence of inhibitors and disappeared therefrom in inhibitor-treated cells in a time-dependent manner, coinciding with OSBP reduction on western blots. Prolonged treatment with SWG or OSW-1 inhibited angiogenesis in vitro. To conclude, inhibition of OSBP in primary endothelial cells induced multiple effects on the lipidome, transcriptome changes suggesting ER stress, and disruption of in vitro angiogenic capacity. Thus, OSBP is a crucial regulator of EC lipid homeostasis and angiogenic capacity.
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Affiliation(s)
- Juuso H Taskinen
- Minerva Foundation Institute for Medical Research, Tukholmankatu 8, 00290 Helsinki, Finland.
| | - Hanna Ruhanen
- Helsinki University Lipidomics Unit (HiLIPID), Helsinki Institute of Life Science (HiLIFE) and Biocenter Finland, Molecular and Integrative Biosciences Research Programme, University of Helsinki, Viikinkaari 1, PO BOX 65, 00014 University of Helsinki, Finland.
| | - Silke Matysik
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
| | - Reijo Käkelä
- Helsinki University Lipidomics Unit (HiLIPID), Helsinki Institute of Life Science (HiLIFE) and Biocenter Finland, Molecular and Integrative Biosciences Research Programme, University of Helsinki, Viikinkaari 1, PO BOX 65, 00014 University of Helsinki, Finland.
| | - Vesa M Olkkonen
- Minerva Foundation Institute for Medical Research, Tukholmankatu 8, 00290 Helsinki, Finland; Department of Anatomy, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland.
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29
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Depta L, Whitmarsh-Everiss T, Laraia L. Structure, function and small molecule modulation of intracellular sterol transport proteins. Bioorg Med Chem 2022; 68:116856. [PMID: 35716590 DOI: 10.1016/j.bmc.2022.116856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 05/23/2022] [Indexed: 11/02/2022]
Abstract
Intracellular sterol transport proteins (STPs) are crucial for maintaining cellular lipid homeostasis by regulating local sterol pools. Despite structural similarities in their sterol binding domains, STPs have different substrate specificities, intracellular localisation and biological functions. In this review, we highlight recent advances in the determination of STP structures and how this regulates their lipid specificities. Furthermore, we cover the important discoveries relating to the intracellular localisation of STPs, and the organelles between which lipid transport is carried out, giving rise to specific functions in health and disease. Finally, serendipitous and targeted efforts to identify small molecule modulators of STPs, as well as their ability to act as tool compounds and potential therapeutics, will be discussed.
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Affiliation(s)
- Laura Depta
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs Lyngby, Denmark
| | - Thomas Whitmarsh-Everiss
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs Lyngby, Denmark
| | - Luca Laraia
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs Lyngby, Denmark.
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30
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An acquired phosphatidylinositol 4-phosphate transport initiates T-cell deterioration and leukemogenesis. Nat Commun 2022; 13:4390. [PMID: 35906240 PMCID: PMC9338045 DOI: 10.1038/s41467-022-32104-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 07/11/2022] [Indexed: 11/28/2022] Open
Abstract
Lipid remodeling is crucial for malignant cell transformation and tumorigenesis, but the precise molecular processes involved and direct evidences for these in vivo remain elusive. Here, we report that oxysterol-binding protein (OSBP)-related protein 4 L (ORP4L) is expressed in adult T-cell leukemia (ATL) cells but not normal T-cells. In ORP4L knock-in T-cells, ORP4L dimerizes with OSBP to control the shuttling of OSBP between the Golgi apparatus and the plasma membrane (PM) as an exchanger of phosphatidylinositol 4-phosphate [PI(4)P]/cholesterol. The PI(4)P arriving at the PM via this transport machinery replenishes phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] and phosphatidylinositol (3,4,5) trisphosphate [PI(3,4,5)P3] biosynthesis, thus contributing to PI3K/AKT hyperactivation and T-cell deterioration in vitro and in vivo. Disruption of ORP4L and OSBP dimerization disables PI(4)P transport and T-cell leukemogenesis. In summary, we identify a non-vesicular lipid transport machinery between Golgi and PM maintaining the oncogenic signaling competence initiating T-cell deterioration and leukemogenesis. The oxysterol-binding protein-related protein 4 (ORP4L) is expressed in T-cell acute lymphoblastic leukemia and is required for leukemogenesis. Here the authors show that ORP4L orchestrates the transport of the phospholipid PI(4)P from Golgi to the plasma membrane, contributing to PI3K/AKT hyperactivation and T-cell leukemogenesis.
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31
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Kobayashi J, Arita M, Sakai S, Kojima H, Senda M, Senda T, Hanada K, Kato R. Ligand Recognition by the Lipid Transfer Domain of Human OSBP Is Important for Enterovirus Replication. ACS Infect Dis 2022; 8:1161-1170. [PMID: 35613096 DOI: 10.1021/acsinfecdis.2c00108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oxysterol-binding protein (OSBP), which transports cholesterol and phosphatidylinositol 4-monophosphate (PtdIns[4]P) between different organelles, serves as a conserved host factor for the replication of various viruses, and OSBP inhibitors exhibit antiviral effects. Here, we determined the crystal structure of the lipid transfer domain of human OSBP in complex with endogenous cholesterol. The hydrocarbon tail and tetracyclic ring of cholesterol interact with the hydrophobic tunnel of OSBP, and the hydroxyl group of cholesterol forms a hydrogen bond network at the bottom of the tunnel. Systematic mutagenesis of the ligand-binding region revealed that M446W and L590W substitutions confer functional tolerance to an OSBP inhibitor, T-00127-HEV2. Employing the M446W variant as a functional replacement for the endogenous OSBP in the presence of T-00127-HEV2, we have identified previously unappreciated amino acid residues required for viral replication. The combined use of the inhibitor and the OSBP variant will be useful in elucidating the enigmatic in vivo functions of OSBP.
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Affiliation(s)
- Jun Kobayashi
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Minetaro Arita
- Department of Virology II, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashimurayama, Tokyo 208-0011, Japan
| | - Shota Sakai
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Hirotatsu Kojima
- Drug Discovery Initiative, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Miki Senda
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Toshiya Senda
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Kentaro Hanada
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ryuichi Kato
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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Wang J, Hu Y, Zheng M. Enterovirus A71 antivirals: Past, present, and future. Acta Pharm Sin B 2022; 12:1542-1566. [PMID: 35847514 PMCID: PMC9279511 DOI: 10.1016/j.apsb.2021.08.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/28/2021] [Accepted: 08/12/2021] [Indexed: 02/07/2023] Open
Abstract
Enterovirus A71 (EV-A71) is a significant human pathogen, especially in children. EV-A71 infection is one of the leading causes of hand, foot, and mouth diseases (HFMD), and can lead to neurological complications such as acute flaccid myelitis (AFM) in severe cases. Although three EV-A71 vaccines are available in China, they are not broadly protective and have reduced efficacy against emerging strains. There is currently no approved antiviral for EV-A71. Significant progress has been made in developing antivirals against EV-A71 by targeting both viral proteins and host factors. However, viral capsid inhibitors and protease inhibitors failed in clinical trials of human rhinovirus infection due to limited efficacy or side effects. This review discusses major discoveries in EV-A71 antiviral development, analyzes the advantages and limitations of each drug target, and highlights the knowledge gaps that need to be addressed to advance the field forward.
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Affiliation(s)
- Jun Wang
- Department of Pharmacology and Toxicology, College of Pharmacy, the University of Arizona, Tucson, AZ 85721, USA
| | - Yanmei Hu
- Department of Pharmacology and Toxicology, College of Pharmacy, the University of Arizona, Tucson, AZ 85721, USA
| | - Madeleine Zheng
- Department of Pharmacology and Toxicology, College of Pharmacy, the University of Arizona, Tucson, AZ 85721, USA
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Dickson EJ. Phosphoinositide transport and metabolism at membrane contact sites. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159107. [PMID: 34995791 PMCID: PMC9662651 DOI: 10.1016/j.bbalip.2021.159107] [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: 06/30/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022]
Abstract
Phosphoinositides are a family of signaling lipids that play a profound role in regulating protein function at the membrane-cytosol interface of all cellular membranes. Underscoring their importance, mutations or alterations in phosphoinositide metabolizing enzymes lead to host of developmental, neurodegenerative, and metabolic disorders that are devastating for human health. In addition to lipid enzymes, phosphoinositide metabolism is regulated and controlled at membrane contact sites (MCS). Regions of close opposition typically between the ER and other cellular membranes, MCS are non-vesicular lipid transport portals that engage in extensive communication to influence organelle homeostasis. This review focuses on lipid transport, specifically phosphoinositide lipid transport and metabolism at MCS.
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Affiliation(s)
- Eamonn J Dickson
- Department of Physiology and Membrane Biology, University of California, Davis, CA 95616, United States of America.
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34
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Hanada K, Sakai S, Kumagai K. Natural Ligand-Mimetic and Nonmimetic Inhibitors of the Ceramide Transport Protein CERT. Int J Mol Sci 2022; 23:ijms23042098. [PMID: 35216212 PMCID: PMC8875512 DOI: 10.3390/ijms23042098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/11/2022] [Accepted: 02/11/2022] [Indexed: 02/04/2023] Open
Abstract
Lipid transfer proteins (LTPs) are recognized as key players in the inter-organelle trafficking of lipids and are rapidly gaining attention as a novel molecular target for medicinal products. In mammalian cells, ceramide is newly synthesized in the endoplasmic reticulum (ER) and converted to sphingomyelin in the trans-Golgi regions. The ceramide transport protein CERT, a typical LTP, mediates the ER-to-Golgi transport of ceramide at an ER-distal Golgi membrane contact zone. About 20 years ago, a potent inhibitor of CERT, named (1R,3S)-HPA-12, was found by coincidence among ceramide analogs. Since then, various ceramide-resembling compounds have been found to act as CERT inhibitors. Nevertheless, the inevitable issue remains that natural ligand-mimetic compounds might directly bind both to the desired target and to various undesired targets that share the same natural ligand. To resolve this issue, a ceramide-unrelated compound named E16A, or (1S,2R)-HPCB-5, that potently inhibits the function of CERT has recently been developed, employing a series of in silico docking simulations, efficient chemical synthesis, quantitative affinity analysis, protein-ligand co-crystallography, and various in vivo assays. (1R,3S)-HPA-12 and E16A together provide a robust tool to discriminate on-target effects on CERT from off-target effects. This short review article will describe the history of the development of (1R,3S)-HPA-12 and E16A, summarize other CERT inhibitors, and discuss their possible applications.
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Affiliation(s)
- Kentaro Hanada
- Department of Quality Assurance, Radiation Safety and Information Management, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan; (S.S.); (K.K.)
- Correspondence:
| | - Shota Sakai
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan; (S.S.); (K.K.)
| | - Keigo Kumagai
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan; (S.S.); (K.K.)
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35
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Huigens RW, Brummel BR, Tenneti S, Garrison AT, Xiao T. Pyrazine and Phenazine Heterocycles: Platforms for Total Synthesis and Drug Discovery. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27031112. [PMID: 35164376 PMCID: PMC8839373 DOI: 10.3390/molecules27031112] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 12/14/2022]
Abstract
There are numerous pyrazine and phenazine compounds that demonstrate biological activities relevant to the treatment of disease. In this review, we discuss pyrazine and phenazine agents that have shown potential therapeutic value, including several clinically used agents. In addition, we cover some basic science related to pyrazine and phenazine heterocycles, which possess interesting reactivity profiles that have been on display in numerous cases of innovative total synthesis approaches, synthetic methodologies, drug discovery efforts, and medicinal chemistry programs. The majority of this review is focused on presenting instructive total synthesis and medicinal chemistry efforts of select pyrazine and phenazine compounds, and we believe these incredible heterocycles offer promise in medicine.
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Huang S, Zhang X, Luo K, Jiang L, Jiang J, Li R. Oxysterol-Binding Protein 2 Promotes Pancreatic Ductal Adenocarcinoma Progression Through Epithelial-Mesenchymal Transition. Front Oncol 2022; 11:762233. [PMID: 35127474 PMCID: PMC8810821 DOI: 10.3389/fonc.2021.762233] [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: 08/21/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
Oxysterol-binding protein 2 (OSBP2) is crucial for promoting the growth and development of cancers; however, its effects on pancreatic ductal adenocarcinoma (PDAC) are still unclear. Here, we report that OSBP2 is an efficient tumor-associated protein to lead to extremely malignant characteristics in PDAC. We discovered that increased OSBP2 expression in primary tumors was associated with shorter survival in PDAC patients. Therefore, we used immunohistochemistry (IHC) to analyze the levels of OSBP2 expression in PDAC tissues and adjacent paracancerous tissues. We used wound healing and Transwell assays to evaluate the effects of OSBP2 on PDAC cell (ASPC-1 and BXPC-3) migration and invasion, respectively, and CCK-8 and Annexin V/PI double staining to evaluate the effects of OSBP2 on PDAC cell proliferation and apoptosis, respectively. Western blotting was used to analyze the effect of OSBP2 on the PDAC cell phenotype. We also explored the effect of OSBP2 on chemosensitivity to gemcitabine (GEM) and 5-fluorouracil (5-FU). We validated these findings in an in vivo mouse model. The data show that OSBP2 overexpression promoted PDAC cell migration, invasion, proliferation and chemotherapy resistance, and decreased apoptosis. OSBP2 overexpression downregulated E-cadherin expression and upregulated N-cadherin, vimentin, Snail, Slug, ZEB1, and β-catenin expression. Taken together, our findings indicated that OSBP2 was overexpressed in PDAC and that upregulation of OSBP2 may promote PDAC progression. Therefore, OSBP2 may have potential diagnostic and therapeutic value in PDAC.
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Affiliation(s)
- Shuai Huang
- Departments of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xudong Zhang
- Departments of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kai Luo
- Departments of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Jiang
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianhua Jiang
- Department of General Surgery, Hua County People’s Hospital, Anyang, China
| | - Renfeng Li
- Departments of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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37
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Weissenrieder JS, Weissenkampen JD, Reed JL, Green MV, Zheng C, Neighbors JD, Liu DJ, Hohl RJ. RNAseq reveals extensive metabolic disruptions in the sensitive SF-295 cell line treated with schweinfurthins. Sci Rep 2022; 12:359. [PMID: 35013404 PMCID: PMC8748991 DOI: 10.1038/s41598-021-04117-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/29/2021] [Indexed: 02/08/2023] Open
Abstract
The schweinfurthin family of natural compounds exhibit a unique and potent differential cytotoxicity against a number of cancer cell lines and may reduce tumor growth in vivo. In some cell lines, such as SF-295 glioma cells, schweinfurthins elicit cytotoxicity at nanomolar concentrations. However, other cell lines, like A549 lung cancer cells, are resistant to schweinfurthin treatment up to micromolar concentrations. At this time, the precise mechanism of action and target for these compounds is unknown. Here, we employ RNA sequencing of cells treated with 50 nM schweinfurthin analog TTI-3066 for 6 and 24 h to elucidate potential mechanisms and pathways which may contribute to schweinfurthin sensitivity and resistance. The data was analyzed via an interaction model to observe differential behaviors between sensitive SF-295 and resistant A549 cell lines. We show that metabolic and stress-response pathways were differentially regulated in the sensitive SF-295 cell line as compared with the resistant A549 cell line. In contrast, A549 cell had significant alterations in response genes involved in translation and protein metabolism. Overall, there was a significant interaction effect for translational proteins, RNA metabolism, protein metabolism, and metabolic genes. Members of the Hedgehog pathway were differentially regulated in the resistant A549 cell line at both early and late time points, suggesting a potential mechanism of resistance. Indeed, when cotreated with the Smoothened inhibitor cyclopamine, A549 cells became more sensitive to schweinfurthin treatment. This study therefore identifies a key interplay with the Hedgehog pathway that modulates sensitivity to the schweinfurthin class of compounds.
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Affiliation(s)
- J. S. Weissenrieder
- grid.25879.310000 0004 1936 8972Department of Physiology, University of Pennsylvania, Philadelphia, PA USA ,grid.240473.60000 0004 0543 9901Department of Medicine, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Department of Pharmacology, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Penn State Cancer Institute, Penn State College of Medicine, 500 University Drive, Mail Code CH72, Hershey, PA 17033-0850 USA
| | - J. D. Weissenkampen
- grid.240473.60000 0004 0543 9901Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA USA ,grid.25879.310000 0004 1936 8972Department of Genetics, University of Pennsylvania, Philadelphia, PA USA
| | - J. L. Reed
- grid.240473.60000 0004 0543 9901Department of Medicine, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Department of Pharmacology, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Penn State Cancer Institute, Penn State College of Medicine, 500 University Drive, Mail Code CH72, Hershey, PA 17033-0850 USA
| | - M. V. Green
- grid.240473.60000 0004 0543 9901Department of Medicine, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Department of Pharmacology, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Penn State Cancer Institute, Penn State College of Medicine, 500 University Drive, Mail Code CH72, Hershey, PA 17033-0850 USA
| | - C. Zheng
- grid.214572.70000 0004 1936 8294Department of Pharmacology, The University of Iowa, Iowa City, IA USA
| | - J. D. Neighbors
- grid.240473.60000 0004 0543 9901Department of Medicine, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Department of Pharmacology, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Penn State Cancer Institute, Penn State College of Medicine, 500 University Drive, Mail Code CH72, Hershey, PA 17033-0850 USA
| | - D. J. Liu
- grid.240473.60000 0004 0543 9901Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA USA
| | - Raymond J. Hohl
- grid.240473.60000 0004 0543 9901Department of Medicine, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Department of Pharmacology, Penn State College of Medicine, Hershey, PA USA ,grid.240473.60000 0004 0543 9901Penn State Cancer Institute, Penn State College of Medicine, 500 University Drive, Mail Code CH72, Hershey, PA 17033-0850 USA
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38
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Arora A, Taskinen JH, Olkkonen VM. Coordination of inter-organelle communication and lipid fluxes by OSBP-related proteins. Prog Lipid Res 2022; 86:101146. [PMID: 34999137 DOI: 10.1016/j.plipres.2022.101146] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/10/2021] [Accepted: 01/03/2022] [Indexed: 12/31/2022]
Abstract
Oxysterol-binding protein (OSBP) and OSBP-related proteins (ORPs) constitute one of the largest families of lipid-binding/transfer proteins (LTPs) in eukaryotes. The current view is that many of them mediate inter-organelle lipid transfer over membrane contact sites (MCS). The transfer occurs in several cases in a 'counter-current' fashion: A lipid such as cholesterol or phosphatidylserine (PS) is transferred against its concentration gradient driven by transport of a phosphoinositide in the opposite direction. In this way ORPs are envisioned to maintain the distinct organelle lipid compositions, with impacts on multiple organelle functions. However, the functions of ORPs extend beyond lipid homeostasis to regulation of processes such as cell survival, proliferation and migration. Important expanding areas of mammalian ORP research include their roles in viral and bacterial infections, cancers, and neuronal function. The yeast OSBP homologue (Osh) proteins execute multifaceted functions in sterol and glycerophospholipid homeostasis, post-Golgi vesicle transport, phosphatidylinositol-4-phosphate, sphingolipid and target of rapamycin (TOR) signalling, and cell cycle control. These observations identify ORPs as lipid transporters and coordinators of signals with an unforeseen variety of cellular processes. Understanding their activities not only enlightens the biology of the living cell but also allows their employment as targets of new therapeutic approaches for disease.
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Affiliation(s)
- Amita Arora
- Minerva Foundation Institute for Medical Research, and Department of Anatomy, Faculty of Medicine, University of Helsinki, Finland
| | - Juuso H Taskinen
- Minerva Foundation Institute for Medical Research, and Department of Anatomy, Faculty of Medicine, University of Helsinki, Finland
| | - Vesa M Olkkonen
- Minerva Foundation Institute for Medical Research, and Department of Anatomy, Faculty of Medicine, University of Helsinki, Finland.
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39
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Sahoo S, Ghosh P, Khan MEH, De P. Recent Progress in Macromolecular Design and Synthesis of Bile Acid‐Based Polymeric Architectures. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Subhasish Sahoo
- Polymer Research Centre and Centre for Advanced Functional Materials Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Nadia West Bengal Mohanpur, 741246 India
| | - Pooja Ghosh
- Polymer Research Centre and Centre for Advanced Functional Materials Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Nadia West Bengal Mohanpur, 741246 India
| | - Md Ezaz Hasan Khan
- School of General Education College of the North Atlantic ‐ Qatar Arab League Street Doha 24449 Qatar
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Nadia West Bengal Mohanpur, 741246 India
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40
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Abstract
The natural schweinfurthins are stilbenes with significant antiproliferative activity and an uncertain mechanism of action. To obtain a fluorescent analogue with minimal deviation from the natural structure, a coumarin ring system was annulated to the D-ring, creating a new analogue of schweinfurthin F. This stilbene was prepared through a convergent synthesis, with a Horner-Wadsworth-Emmons condensation employed to form the central stilbene olefin. After preparation of a tricyclic phosphonate via a recent and more efficient modification of the classic Arbuzov reaction, condensation was attempted with an appropriately substituted bicyclic aldehyde but the coumarin system did not survive the reaction conditions. When olefin formation preceded generation of the coumarin, the stilbene formation proceeded smoothly and ultimately allowed access to the targeted coumarin-based schweinfurthin analogue. This analogue displayed the desired fluorescence properties along with significant biological activity in the National Cancer Institute's 60-cell line bioassay, and the pattern of this biological activity mirrored that of the natural product schweinfurthin F. This approach gives facile access to new fluorescent analogues of the natural schweinfurthins and should be applicable to other natural stilbenes as well.
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Affiliation(s)
- Chloe M Schroeder
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
| | - Patrick N Dey
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
| | - John A Beutler
- Molecular Targets Program, Center for Cancer Research, NCI-Frederick, Frederick, Maryland 21702, United States
| | - David F Wiemer
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
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41
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ORP4L is a prerequisite for the induction of T-cell leukemogenesis associated with human T-cell leukemia virus 1. Blood 2021; 139:1052-1065. [PMID: 34797912 PMCID: PMC8854678 DOI: 10.1182/blood.2021013579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 11/09/2021] [Indexed: 11/20/2022] Open
Abstract
ORP4L deletion blocks Tax-induced T-cell leukemia, whereas engineering ORP4L expression in T cells results in T-cell leukemia in mice. Loss of miR-31 induced by Tax releases ORP4L expression, which initiates T-cell deterioration, but ORP4L inhibition eliminates ATL in PDX mice.
Human T-cell leukemia virus 1 (HTLV-1) causes adult T-cell leukemia (ATL), but the mechanism underlying its initiation remains elusive. In this study, ORP4L was expressed in ATL cells but not in normal T-cells. ORP4L ablation completely blocked T-cell leukemogenesis induced by the HTLV-1 oncoprotein Tax in mice, whereas engineering ORP4L expression in T-cells resulted in T-cell leukemia in mice, suggesting the oncogenic properties and prerequisite of ORP4L promote the initiation of T-cell leukemogenesis. For molecular insight, we found that loss of miR-31 caused by HTLV-1 induced ORP4L expression in T-cells. ORP4L interacts with PI3Kδ to promote PI(3,4,5)P3 generation, contributing to AKT hyperactivation; NF-κB–dependent, p53 inactivation-induced pro-oncogene expression; and T-cell leukemogenesis. Consistently, ORP4L ablation eliminates human ATL cells in patient-derived xenograft ATL models. These results reveal a plausible mechanism of T-cell deterioration by HTLV-1 that can be therapeutically targeted.
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42
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Zhan Z, Liu Z, Lai J, Zhang C, Chen Y, Huang H. Anticancer Effects and Mechanisms of OSW-1 Isolated From Ornithogalum saundersiae: A Review. Front Oncol 2021; 11:747718. [PMID: 34631585 PMCID: PMC8496766 DOI: 10.3389/fonc.2021.747718] [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: 07/26/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023] Open
Abstract
For centuries, cancer has been a lingering dark cloud floating on people's heads. With rapid population growth and aging worldwide, cancer incidence and mortality are growing rapidly. Despite major advances in oncotherapy including surgery, radiation and chemical therapy, as well as immunotherapy and targeted therapy, cancer is expected be the leading cause of premature death in this century. Nowadays, natural compounds with potential anticancer effects have become an indispensable natural treasure for discovering clinically useful agents and made remarkable achievements in cancer chemotherapy. In this regards, OSW-1, which was isolated from the bulbs of Ornithogalum saundersiae in 1992, has exhibited powerful anticancer activities in various cancers. However, after almost three decades, OSW-1 is still far from becoming a real anticancer agent for its anticancer mechanisms remain unclear. Therefore, in this review we summarize the available evidence on the anticancer effects and mechanisms of OSW-1 in vitro and in vivo, and some insights for researchers who are interested in OSW-1 as a potential anticancer drug. We conclude that OSW-1 is a potential candidate for anticancer drugs and deserves further study.
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Affiliation(s)
| | | | | | | | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
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Mishina T, Oshima-Hasegawa N, Tsukamoto S, Fukuyo M, Kageyama H, Muto T, Mimura N, Rahmutulla B, Nagai Y, Kayamori K, Hino Y, Mitsukawa S, Takeda Y, Ohwada C, Takeuchi M, Tsujimura H, Iseki T, Nakaseko C, Ikeda JI, Itami M, Yokote K, Ohara O, Kaneda A, Sakaida E. Genetic subtype classification using a simplified algorithm and mutational characteristics of diffuse large B-cell lymphoma in a Japanese cohort. Br J Haematol 2021; 195:731-742. [PMID: 34378195 DOI: 10.1111/bjh.17765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/09/2021] [Accepted: 07/28/2021] [Indexed: 12/11/2022]
Abstract
Recent large-scale genetic studies have proposed a new genetic classification of diffuse large B-cell lymphoma (DLBCL), which is clinically and biologically heterogeneous. However, the classification methods were complicated to be introduced into clinical practice. Here we retrospectively evaluated the mutational status and copy number changes of 144 genes in 177 Japanese patients with DLBCL, using targeted DNA sequencing. We developed a simplified algorithm for classifying four genetic subtypes-MYD88, NOTCH2, BCL2, and SGK1-by assessing alterations in 18 representative genes and BCL2 and BCL6 rearrangement status, integrating the significant genes from previous studies. In our cohort and another validation cohort from published data, the classification results in our algorithm showed close agreement with the other established algorithm. A differential prognosis among the four groups was observed. The NOTCH2 group showed a particularly poorer outcome than similar groups in previous reports. Furthermore, our study revealed unreported genetic features in the DLBCL subtypes that are mainly reported in Japanese patients, such as CD5-positive DLBCL and methotrexate-associated lymphoproliferative disorders. These results indicate the utility of our simplified method for DLBCL genetic subtype classification, which can facilitate the optimisation of treatment strategies. In addition, our study highlights the genetic features of Japanese patients with DLBCL.
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Affiliation(s)
- Tatsuzo Mishina
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Nagisa Oshima-Hasegawa
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | | | - Masaki Fukuyo
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hajime Kageyama
- Division of Surgical Pathology, Chiba Cancer Center, Chiba, Japan
| | - Tomoya Muto
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Naoya Mimura
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Bahityar Rahmutulla
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yurie Nagai
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Kensuke Kayamori
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Yutaro Hino
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Shio Mitsukawa
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Yusuke Takeda
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Chikako Ohwada
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Hematology, International University of Health and Welfare, Narita, Japan
| | | | - Hideki Tsujimura
- Division of Hematology-Oncology, Chiba Cancer Center, Chiba, Japan
| | - Tohru Iseki
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Chiaki Nakaseko
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Hematology, International University of Health and Welfare, Narita, Japan
| | - Jun-Ichiro Ikeda
- Department of Diagnostic Pathology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Makiko Itami
- Division of Surgical Pathology, Chiba Cancer Center, Chiba, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Emiko Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan.,Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
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Santos MF, Rappa G, Karbanová J, Fontana S, Bella MAD, Pope MR, Parrino B, Cascioferro SM, Vistoli G, Diana P, Cirrincione G, Arena GO, Woo G, Huang K, Huynh T, Moschetti M, Alessandro R, Corbeil D, Lorico A. Itraconazole inhibits nuclear delivery of extracellular vesicle cargo by disrupting the entry of late endosomes into the nucleoplasmic reticulum. J Extracell Vesicles 2021; 10:e12132. [PMID: 34429859 PMCID: PMC8363911 DOI: 10.1002/jev2.12132] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 01/01/2023] Open
Abstract
Extracellular vesicles (EVs) are mediators of intercellular communication under both healthy and pathological conditions, including the induction of pro-metastatic traits, but it is not yet known how and where functional cargoes of EVs are delivered to their targets in host cell compartments. We have described that after endocytosis, EVs reach Rab7+ late endosomes and a fraction of these enter the nucleoplasmic reticulum and transport EV biomaterials to the host cell nucleoplasm. Their entry therein and docking to outer nuclear membrane occur through a tripartite complex formed by the proteins VAP-A, ORP3 and Rab7 (VOR complex). Here, we report that the antifungal compound itraconazole (ICZ), but not its main metabolite hydroxy-ICZ or ketoconazole, disrupts the binding of Rab7 to ORP3-VAP-A complexes, leading to inhibition of EV-mediated pro-metastatic morphological changes including cell migration behaviour of colon cancer cells. With novel, smaller chemical drugs, inhibition of the VOR complex was maintained, although the ICZ moieties responsible for antifungal activity and interference with intracellular cholesterol distribution were removed. Knowing that cancer cells hijack their microenvironment and that EVs derived from them determine the pre-metastatic niche, small-sized inhibitors of nuclear transfer of EV cargo into host cells could find cancer therapeutic applications, particularly in combination with direct targeting of cancer cells.
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Affiliation(s)
- Mark F. Santos
- College of MedicineTouro University NevadaHendersonNevadaUSA
| | - Germana Rappa
- College of MedicineTouro University NevadaHendersonNevadaUSA
| | - Jana Karbanová
- Biotechnology Centre and Centre for Molecular and Cellular BioengineeringTechnische Universität DresdenDresdenGermany
| | - Simona Fontana
- Department of Biomedicine, Neurosciences and Advanced DiagnosticsUniversity of PalermoPalermoItaly
| | | | | | - Barbara Parrino
- Dipartimento di Scienze e Tecnologie BiologicheChimiche e FarmaceuticheUniversità degli Studi di PalermoPalermoItaly
| | - Stella Maria Cascioferro
- Dipartimento di Scienze e Tecnologie BiologicheChimiche e FarmaceuticheUniversità degli Studi di PalermoPalermoItaly
| | - Giulio Vistoli
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoMilanItaly
| | - Patrizia Diana
- Dipartimento di Scienze e Tecnologie BiologicheChimiche e FarmaceuticheUniversità degli Studi di PalermoPalermoItaly
| | - Girolamo Cirrincione
- Dipartimento di Scienze e Tecnologie BiologicheChimiche e FarmaceuticheUniversità degli Studi di PalermoPalermoItaly
| | - Goffredo O. Arena
- Department of SurgeryMcGill UniversityMontréalQuébecCanada
- Fondazione Istituto G. GiglioCefalùItaly
| | - Gyunghwi Woo
- College of MedicineTouro University NevadaHendersonNevadaUSA
| | - Kevin Huang
- College of MedicineTouro University NevadaHendersonNevadaUSA
| | - Tony Huynh
- College of MedicineTouro University NevadaHendersonNevadaUSA
| | - Marta Moschetti
- Department of Biomedicine, Neurosciences and Advanced DiagnosticsUniversity of PalermoPalermoItaly
| | - Riccardo Alessandro
- Department of Biomedicine, Neurosciences and Advanced DiagnosticsUniversity of PalermoPalermoItaly
- Institute for Biomedical Research and Innovation (IRIB)National Research Council (CNR)PalermoItaly
| | - Denis Corbeil
- Biotechnology Centre and Centre for Molecular and Cellular BioengineeringTechnische Universität DresdenDresdenGermany
| | - Aurelio Lorico
- College of MedicineTouro University NevadaHendersonNevadaUSA
- Mediterranean Institute of OncologyViagrandeItaly
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45
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Tei R, Baskin JM. Induced proximity tools for precise manipulation of lipid signaling. Curr Opin Chem Biol 2021; 65:93-100. [PMID: 34304140 DOI: 10.1016/j.cbpa.2021.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/03/2021] [Accepted: 06/18/2021] [Indexed: 01/07/2023]
Abstract
Lipids are highly dynamic molecules that, due to their hydrophobicity, are spatially confined to membrane environments. From these locations, certain privileged lipids serve as signaling molecules. For understanding the biological functions of subcellular pools of signaling lipids, induced proximity tools have been invaluable. These methods involve controlled heterodimerization, by either small-molecule or light triggers, of functional proteins. In the arena of lipid signaling, induced proximity tools can recruit lipid-metabolizing enzymes to manipulate lipid signaling and create artificial tethers between organelle membranes to control lipid trafficking pathways at membrane contact sites. Here, we review recent advances in methodology development and biological application of chemical-induced and light-induced proximity tools for manipulating lipid metabolism, trafficking, and signaling.
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Affiliation(s)
- Reika Tei
- Department of Chemistry and Chemical Biology and Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York, 14853, USA
| | - Jeremy M Baskin
- Department of Chemistry and Chemical Biology and Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York, 14853, USA.
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46
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Sax JL, Hubler Z, Allimuthu D, Adams DJ. Screening Reveals Sterol Derivatives with Pro-Differentiation, Pro-Survival, or Potent Cytotoxic Effects on Oligodendrocyte Progenitor Cells. ACS Chem Biol 2021; 16:1288-1297. [PMID: 34232635 DOI: 10.1021/acschembio.1c00461] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Inducing the formation of new oligodendrocytes from oligodendrocyte progenitor cells (OPCs) represents a potential approach to repairing the loss of myelin observed in multiple sclerosis and other diseases. Recently, we demonstrated that accumulation of specific cholesterol precursors, 8,9-unsaturated sterols, is a dominant mechanism by which dozens of small molecules enhance oligodendrocyte formation. Here, we evaluated a library of 56 sterols and steroids to evaluate whether other classes of bioactive sterol derivatives may also influence mouse oligodendrocyte precursor cell (OPC) differentiation or survival. From this library, we identified U-73343 as a potent enhancer of oligodendrocyte formation that induces 8,9-unsaturated sterol accumulation by inhibition of the cholesterol biosynthesis enzyme sterol 14-reductase. In contrast, we found that mouse OPCs are remarkably vulnerable to treatment with the glycosterol OSW-1, an oxysterol-binding protein (OSBP) modulator that induces Golgi stress and OPC death in the low picomolar range. A subsequent small-molecule suppressor screen identified mTOR signaling as a key effector pathway mediating OSW-1's cytotoxic effects in mouse OPCs. Finally, evaluation of a panel of ER and Golgi stress-inducing small molecules revealed that mouse OPCs are highly sensitive to these perturbations, more so than closely related neural progenitor cells. Together, these studies highlight the wide-ranging influence of sterols and steroids on OPC cell fate, with 8,9-unsaturated sterols positively enhancing differentiation to oligodendrocytes and OSW-1 able to induce lethal Golgi stress with remarkable potency.
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Affiliation(s)
- Joel L. Sax
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, United States
| | - Zita Hubler
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, United States
| | - Dharmaraja Allimuthu
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, United States
| | - Drew J. Adams
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, United States
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47
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Kutchukian C, Vivas O, Casas M, Jones JG, Tiscione SA, Simó S, Ory DS, Dixon RE, Dickson EJ. NPC1 regulates the distribution of phosphatidylinositol 4-kinases at Golgi and lysosomal membranes. EMBO J 2021; 40:e105990. [PMID: 34019311 PMCID: PMC8246069 DOI: 10.15252/embj.2020105990] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 03/11/2021] [Accepted: 03/19/2021] [Indexed: 12/15/2022] Open
Abstract
Cholesterol and phosphoinositides (PI) are two critically important lipids that are found in cellular membranes and dysregulated in many disorders. Therefore, uncovering molecular pathways connecting these essential lipids may offer new therapeutic insights. We report that loss of function of lysosomal Niemann-Pick Type C1 (NPC1) cholesterol transporter, which leads to neurodegenerative NPC disease, initiates a signaling cascade that alters the cholesterol/phosphatidylinositol 4-phosphate (PtdIns4P) countertransport cycle between Golgi-endoplasmic reticulum (ER), as well as lysosome-ER membrane contact sites (MCS). Central to these disruptions is increased recruitment of phosphatidylinositol 4-kinases-PI4KIIα and PI4KIIIβ-which boosts PtdIns4P metabolism at Golgi and lysosomal membranes. Aberrantly increased PtdIns4P levels elevate constitutive anterograde secretion from the Golgi complex, and mTORC1 recruitment to lysosomes. NPC1 disease mutations phenocopy the transporter loss of function and can be rescued by inhibition or knockdown of either key phosphoinositide enzymes or their recruiting partners. In summary, we show that the lysosomal NPC1 cholesterol transporter tunes the molecular content of Golgi and lysosome MCS to regulate intracellular trafficking and growth signaling in health and disease.
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Affiliation(s)
- Candice Kutchukian
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
| | - Oscar Vivas
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
- Present address:
Department of Physiology and BiophysicsUniversity of WashingtonSeattleWAUSA
| | - Maria Casas
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
| | - Julia G Jones
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
| | - Scott A Tiscione
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
| | - Sergi Simó
- Department of Cell Biology & Human AnatomyUniversity of CaliforniaDavisCAUSA
| | - Daniel S Ory
- Department of Internal MedicineWashington University School of MedicineSt. LouisMOUSA
| | - Rose E Dixon
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
| | - Eamonn J Dickson
- Department of Physiology and Membrane BiologyUniversity of CaliforniaDavisCAUSA
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48
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Nakatsu F, Kawasaki A. Functions of Oxysterol-Binding Proteins at Membrane Contact Sites and Their Control by Phosphoinositide Metabolism. Front Cell Dev Biol 2021; 9:664788. [PMID: 34249917 PMCID: PMC8264513 DOI: 10.3389/fcell.2021.664788] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 05/06/2021] [Indexed: 01/10/2023] Open
Abstract
Lipids must be correctly transported within the cell to the right place at the right time in order to be fully functional. Non-vesicular lipid transport is mediated by so-called lipid transfer proteins (LTPs), which contain a hydrophobic cavity that sequesters lipid molecules. Oxysterol-binding protein (OSBP)-related proteins (ORPs) are a family of LTPs known to harbor lipid ligands, such as cholesterol and phospholipids. ORPs act as a sensor or transporter of those lipid ligands at membrane contact sites (MCSs) where two different cellular membranes are closely apposed. In particular, a characteristic functional property of ORPs is their role as a lipid exchanger. ORPs mediate counter-directional transport of two different lipid ligands at MCSs. Several, but not all, ORPs transport their lipid ligand from the endoplasmic reticulum (ER) in exchange for phosphatidylinositol 4-phosphate (PI4P), the other ligand, on apposed membranes. This ORP-mediated lipid “countertransport” is driven by the concentration gradient of PI4P between membranes, which is generated by its kinases and phosphatases. In this review, we will discuss how ORP function is tightly coupled to metabolism of phosphoinositides such as PI4P. Recent progress on the role of ORP-mediated lipid transport/countertransport at multiple MCSs in cellular functions will be also discussed.
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Affiliation(s)
- Fubito Nakatsu
- Department of Neurochemistry and Molecular Cell Biology, Niigata University School of Medicine and Graduate School of Medical/Dental Sciences, Niigata, Japan
| | - Asami Kawasaki
- Department of Neurochemistry and Molecular Cell Biology, Niigata University School of Medicine and Graduate School of Medical/Dental Sciences, Niigata, Japan
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49
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Avula K, Singh B, Kumar PV, Syed GH. Role of Lipid Transfer Proteins (LTPs) in the Viral Life Cycle. Front Microbiol 2021; 12:673509. [PMID: 34248884 PMCID: PMC8260984 DOI: 10.3389/fmicb.2021.673509] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/17/2021] [Indexed: 12/14/2022] Open
Abstract
Viruses are obligate parasites that depend on the host cell machinery for their replication and dissemination. Cellular lipids play a central role in multiple stages of the viral life cycle such as entry, replication, morphogenesis, and egress. Most viruses reorganize the host cell membranes for the establishment of viral replication complex. These specialized structures allow the segregation of replicating viral RNA from ribosomes and protect it from host nucleases. They also facilitate localized enrichment of cellular components required for viral replication and assembly. The specific composition of the lipid membrane governs its ability to form negative or positive curvature and possess a rigid or flexible form, which is crucial for membrane rearrangement and establishment of viral replication complexes. In this review, we highlight how different viruses manipulate host lipid transfer proteins and harness their functions to enrich different membrane compartments with specific lipids in order to facilitate multiple aspects of the viral life cycle.
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Affiliation(s)
- Kiran Avula
- Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneshwar, India.,Regional Centre for Biotechnology, Faridabad, India
| | - Bharati Singh
- Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneshwar, India.,School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneshwar, India
| | - Preethy V Kumar
- Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneshwar, India.,School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneshwar, India
| | - Gulam H Syed
- Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneshwar, India
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50
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de la Mora E, Dezi M, Di Cicco A, Bigay J, Gautier R, Manzi J, Polidori J, Castaño-Díez D, Mesmin B, Antonny B, Lévy D. Nanoscale architecture of a VAP-A-OSBP tethering complex at membrane contact sites. Nat Commun 2021; 12:3459. [PMID: 34103503 PMCID: PMC8187361 DOI: 10.1038/s41467-021-23799-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 05/12/2021] [Indexed: 02/05/2023] Open
Abstract
Membrane contact sites (MCS) are subcellular regions where two organelles appose their membranes to exchange small molecules, including lipids. Structural information on how proteins form MCS is scarce. We designed an in vitro MCS with two membranes and a pair of tethering proteins suitable for cryo-tomography analysis. It includes VAP-A, an ER transmembrane protein interacting with a myriad of cytosolic proteins, and oxysterol-binding protein (OSBP), a lipid transfer protein that transports cholesterol from the ER to the trans Golgi network. We show that VAP-A is a highly flexible protein, allowing formation of MCS of variable intermembrane distance. The tethering part of OSBP contains a central, dimeric, and helical T-shape region. We propose that the molecular flexibility of VAP-A enables the recruitment of partners of different sizes within MCS of adjustable thickness, whereas the T geometry of the OSBP dimer facilitates the movement of the two lipid-transfer domains between membranes.
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Affiliation(s)
- Eugenio de la Mora
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France
- Sorbonne Université, Paris, France
| | - Manuela Dezi
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.
- Sorbonne Université, Paris, France.
| | - Aurélie Di Cicco
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France
- Sorbonne Université, Paris, France
| | - Joëlle Bigay
- CNRS UMR 7275, Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Romain Gautier
- CNRS UMR 7275, Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - John Manzi
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France
- Sorbonne Université, Paris, France
| | - Joël Polidori
- CNRS UMR 7275, Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | | | - Bruno Mesmin
- CNRS UMR 7275, Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Bruno Antonny
- CNRS UMR 7275, Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France.
| | - Daniel Lévy
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.
- Sorbonne Université, Paris, France.
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