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Wåhlén E, Olsson F, Raykova D, Söderberg O, Heldin J, Lennartsson J. Activated EGFR and PDGFR internalize in separate vesicles and downstream AKT and ERK1/2 signaling are differentially impacted by cholesterol depletion. Biochem Biophys Res Commun 2023; 665:195-201. [PMID: 37163940 DOI: 10.1016/j.bbrc.2023.04.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 05/12/2023]
Abstract
The interplay between membrane subregions and receptor tyrosine kinases (RTK) will influence signaling in both normal and pathological RTK conditions. In this study, epidermal growth factor receptor (EGFR) and platelet-derived growth factor receptor β (PDGFR-β) internalizations were investigated by immunofluorescent microscopy following simultaneous treatment with EGF and PDGF-BB. We found that the two receptors utilize separate routes of internalization, which merges in a common perinuclear endosomal compartment after 45 min of stimulation. This is further strengthened when contrasting the recruitment of either EGFR or PDGFR-β to either clathrin or caveolin-1: PDGFR-β dissociates from caveolin-1 upon stimulation, and engages clathrin, whilst an increased recruitment of EGFR, to both clathrin and caveolin-1, was observed upon EGF stimulation. The association between EGFR and caveolin-1 is supported by the observation that EGFR was localized in lipid raft associated fractions, whereas PDGFR-β was not. We also found that disruption of lipid rafts using MβCD led to an increased EGFR dimerization and phosphorylation in response to ligand, as well as a dramatic decrease in AKT- and a smaller but robust decrease in ERK1/2 phosphorylation. This suggest that lipid rafts may be important to effectively connect the EGFR with downstream proteins to facilitate signaling. Our data implies that cholesterol depletion of the plasma membrane affect the signaling of EGFR and PDGFRβ differently.
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Affiliation(s)
- Erik Wåhlén
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden
| | - Frida Olsson
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden
| | - Doroteya Raykova
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden
| | - Ola Söderberg
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden
| | - Johan Heldin
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden.
| | - Johan Lennartsson
- Department of Pharmaceutical Biosciences, Uppsala University, Husarg 3, SE-75124, Uppsala, Sweden
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2
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Mihalič F, Simonetti L, Giudice G, Sander MR, Lindqvist R, Peters MBA, Benz C, Kassa E, Badgujar D, Inturi R, Ali M, Krystkowiak I, Sayadi A, Andersson E, Aronsson H, Söderberg O, Dobritzsch D, Petsalaki E, Överby AK, Jemth P, Davey NE, Ivarsson Y. Large-scale phage-based screening reveals extensive pan-viral mimicry of host short linear motifs. Nat Commun 2023; 14:2409. [PMID: 37100772 PMCID: PMC10132805 DOI: 10.1038/s41467-023-38015-5] [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: 07/16/2022] [Accepted: 04/12/2023] [Indexed: 04/28/2023] Open
Abstract
Viruses mimic host short linear motifs (SLiMs) to hijack and deregulate cellular functions. Studies of motif-mediated interactions therefore provide insight into virus-host dependencies, and reveal targets for therapeutic intervention. Here, we describe the pan-viral discovery of 1712 SLiM-based virus-host interactions using a phage peptidome tiling the intrinsically disordered protein regions of 229 RNA viruses. We find mimicry of host SLiMs to be a ubiquitous viral strategy, reveal novel host proteins hijacked by viruses, and identify cellular pathways frequently deregulated by viral motif mimicry. Using structural and biophysical analyses, we show that viral mimicry-based interactions have similar binding strength and bound conformations as endogenous interactions. Finally, we establish polyadenylate-binding protein 1 as a potential target for broad-spectrum antiviral agent development. Our platform enables rapid discovery of mechanisms of viral interference and the identification of potential therapeutic targets which can aid in combating future epidemics and pandemics.
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Affiliation(s)
- Filip Mihalič
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Husargatan 3, 751 23, Uppsala, Sweden
| | - Leandro Simonetti
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Girolamo Giudice
- European Molecular Biology Laboratory-European Bioinformatics Institute, Hinxton, CB10 1SD, UK
| | - Marie Rubin Sander
- Department of Pharmaceutical Biosciences, Uppsala University, Husargatan 3, Box 591, SE-751 24, Uppsala, Sweden
| | - Richard Lindqvist
- Department of Clinical Microbiology, Umeå University, 90187, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, 90186, Umeå, Sweden
| | - Marie Berit Akpiroro Peters
- Department of Clinical Microbiology, Umeå University, 90187, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, 90186, Umeå, Sweden
| | - Caroline Benz
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Eszter Kassa
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Dilip Badgujar
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Raviteja Inturi
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Husargatan 3, 751 23, Uppsala, Sweden
| | - Muhammad Ali
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Izabella Krystkowiak
- Division of Cancer Biology, The Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK
| | - Ahmed Sayadi
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Eva Andersson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Husargatan 3, 751 23, Uppsala, Sweden
| | - Hanna Aronsson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Husargatan 3, 751 23, Uppsala, Sweden
| | - Ola Söderberg
- Department of Pharmaceutical Biosciences, Uppsala University, Husargatan 3, Box 591, SE-751 24, Uppsala, Sweden
| | - Doreen Dobritzsch
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden
| | - Evangelia Petsalaki
- European Molecular Biology Laboratory-European Bioinformatics Institute, Hinxton, CB10 1SD, UK
| | - Anna K Överby
- Department of Clinical Microbiology, Umeå University, 90187, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, 90186, Umeå, Sweden
| | - Per Jemth
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Husargatan 3, 751 23, Uppsala, Sweden.
| | - Norman E Davey
- Division of Cancer Biology, The Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK.
| | - Ylva Ivarsson
- Department of Chemistry - BMC, Uppsala University, Box 576, Husargatan 3, 751 23, Uppsala, Sweden.
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3
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cyy260 suppresses the proliferation, migration and tumor growth of osteosarcoma by targeting PDGFR-β signaling pathway. Chem Biol Interact 2022; 367:110200. [PMID: 36170914 DOI: 10.1016/j.cbi.2022.110200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/08/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022]
Abstract
Osteosarcoma (OS) is a group of malignant tumors with high rates of malignancy and metastasis. OS most commonly affects adolescents and young individuals. However, owing to the lack of effective targeted treatments, the 5-year survival rate for OS is still around 20%. Thus, it is essential to develop effective drugs with low toxicity for OS treatment. In the present study, we investigated the antitumor effect and underlying mechanism of cyy260 in OS via suppressing PDGFR-β and its downstream pathway. We demonstrated that cyy260 inhibits OS cell proliferation and promotes apoptosis via inducing DNA damage and causing cell cycle arrest. More importantly, cyy260 also significantly inhibits tumor migration. Further analysis of molecular mechanisms confirmed that PDGFR-β and its downstream AKT, STAT3, and ERK were involved in the cyy260-mediated antitumor effect. Analysis of subcutaneously transplanted tumors in mice showed that cyy260 suppressed tumor cell growth and exhibited low toxicity in vivo. Collectively, these findings proved that cyy260 could serve as a promising PDGFR-β inhibitor for the treatment of OS.
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Raykova D, Kermpatsou D, Malmqvist T, Harrison PJ, Sander MR, Stiller C, Heldin J, Leino M, Ricardo S, Klemm A, David L, Spjuth O, Vemuri K, Dimberg A, Sundqvist A, Norlin M, Klaesson A, Kampf C, Söderberg O. A method for Boolean analysis of protein interactions at a molecular level. Nat Commun 2022; 13:4755. [PMID: 35963857 PMCID: PMC9375095 DOI: 10.1038/s41467-022-32395-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/29/2022] [Indexed: 12/12/2022] Open
Abstract
Determining the levels of protein-protein interactions is essential for the analysis of signaling within the cell, characterization of mutation effects, protein function and activation in health and disease, among others. Herein, we describe MolBoolean - a method to detect interactions between endogenous proteins in various subcellular compartments, utilizing antibody-DNA conjugates for identification and signal amplification. In contrast to proximity ligation assays, MolBoolean simultaneously indicates the relative abundances of protein A and B not interacting with each other, as well as the pool of A and B proteins that are proximal enough to be considered an AB complex. MolBoolean is applicable both in fixed cells and tissue sections. The specific and quantifiable data that the method generates provide opportunities for both diagnostic use and medical research.
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Affiliation(s)
- Doroteya Raykova
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden.
| | - Despoina Kermpatsou
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | | | - Philip J Harrison
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Marie Rubin Sander
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Christiane Stiller
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Johan Heldin
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Mattias Leino
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Sara Ricardo
- Faculty of Medicine, University of Porto, Porto, Portugal
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Department of Sciences, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Anna Klemm
- Vi2, Department of Information Technology and SciLifeLab BioImage Informatics Facility, Uppsala University, Uppsala, Sweden
| | - Leonor David
- Faculty of Medicine, University of Porto, Porto, Portugal
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Ola Spjuth
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Kalyani Vemuri
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Anna Dimberg
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Anders Sundqvist
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Maria Norlin
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | - Axel Klaesson
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden
| | | | - Ola Söderberg
- Department of Pharmaceutical Biosciences, Science for Life Laboratory, Uppsala University, Biomedical center, SE-751 24, Uppsala, Sweden.
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Wåhlén E, Olsson F, Söderberg O, Lennartsson J, Heldin J. Differential impact of lipid raft depletion on platelet-derived growth factor (PDGF)-induced ERK1/2 MAP-kinase, SRC and AKT signaling. Cell Signal 2022; 96:110356. [DOI: 10.1016/j.cellsig.2022.110356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 05/04/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022]
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Li G, Zhao M, Zhao L. Development and validation of an UPLC-MS/MS method for simultaneous determination of fifteen targeted anti-cancer drugs in human plasma and its application in therapeutic drug monitoring. J Pharm Biomed Anal 2021; 212:114517. [DOI: 10.1016/j.jpba.2021.114517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 12/29/2022]
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Receptor tyrosine kinases and cancer: oncogenic mechanisms and therapeutic approaches. Oncogene 2021; 40:4079-4093. [PMID: 34079087 DOI: 10.1038/s41388-021-01841-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/29/2021] [Accepted: 05/13/2021] [Indexed: 02/05/2023]
Abstract
Receptor tyrosine kinases (RTKs) are transmembrane receptors of great clinical interest due to their role in disease, notably cancer. Since their discovery, several mechanisms of RTK dysregulation have been identified, resulting in multiple cancer types displaying 'oncogenic addiction' to RTKs. As a result, RTKs have represented a major class for targeted therapeutics over the past two decades, with numerous small molecule-based tyrosine kinase inhibitor (TKI) therapeutics having been developed and clinically approved for several cancers. However, many of the current RTK inhibitor treatments eventually result in the rapid development of acquired resistance and subsequent tumor relapse. Recent technological advances and tools are being generated for the identification of novel RTK small molecule therapeutics. These newer technologies will be important for the identification of diverse types of RTK inhibitors, targeting both the receptors themselves as well as key cellular factors that play important roles in the RTK signaling cascade.
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The emerging complexity of PDGFRs: activation, internalization and signal attenuation. Biochem Soc Trans 2021; 48:1167-1176. [PMID: 32369556 DOI: 10.1042/bst20200004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/08/2020] [Accepted: 04/14/2020] [Indexed: 12/30/2022]
Abstract
The platelet-derived growth factor receptor (PDGFR) family of receptor tyrosine kinases allows cells to communicate with the environment to regulate diverse cellular activities. Here, we highlight recent data investigating the structural makeup of individual PDGFRs upon activation, revealing the importance of the whole receptor in the propagation of extracellular ligand binding and dimerization. Furthermore, we review ongoing research demonstrating the significance of receptor internalization and signal attenuation in the regulation of PDGFR activity. Interactions with internalization machinery, signaling from endosomes, receptor degradation and receptor recycling are physiological means by which cells fine-tune PDGFR responses to growth factor stimulation. In this review, we discuss the biophysical, structural, in silico and biochemical data that have provided evidence for these mechanisms. We further highlight the commonalities and differences between PDGFRα and PDGFRβ signaling, revealing critical gaps in knowledge. In total, this review provides a conclusive summary on the state of the PDGFR field and underscores the need for novel techniques to fully elucidate the mechanisms of PDGFR activation, internalization and signal attenuation.
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