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Weidner P, Saar D, Söhn M, Schroeder T, Yu Y, Zöllner FG, Ponelies N, Zhou X, Zwicky A, Rohrbacher FN, Pattabiraman VR, Tanriver M, Bauer A, Ahmed H, Ametamey SM, Riffel P, Seger R, Bode JW, Wade RC, Ebert MPA, Kragelund BB, Burgermeister E. Myotubularin-related-protein-7 inhibits mutant (G12V) K-RAS by direct interaction. Cancer Lett 2024; 588:216783. [PMID: 38462034 DOI: 10.1016/j.canlet.2024.216783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/19/2024] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Inhibition of K-RAS effectors like B-RAF or MEK1/2 is accompanied by treatment resistance in cancer patients via re-activation of PI3K and Wnt signaling. We hypothesized that myotubularin-related-protein-7 (MTMR7), which inhibits PI3K and ERK1/2 signaling downstream of RAS, directly targets RAS and thereby prevents resistance. Using cell and structural biology combined with animal studies, we show that MTMR7 binds and inhibits RAS at cellular membranes. Overexpression of MTMR7 reduced RAS GTPase activities and protein levels, ERK1/2 phosphorylation, c-FOS transcription and cancer cell proliferation in vitro. We located the RAS-inhibitory activity of MTMR7 to its charged coiled coil (CC) region and demonstrate direct interaction with the gastrointestinal cancer-relevant K-RASG12V mutant, favouring its GDP-bound state. In mouse models of gastric and intestinal cancer, a cell-permeable MTMR7-CC mimicry peptide decreased tumour growth, Ki67 proliferation index and ERK1/2 nuclear positivity. Thus, MTMR7 mimicry peptide(s) could provide a novel strategy for targeting mutant K-RAS in cancers.
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Affiliation(s)
- Philip Weidner
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Daniel Saar
- Structural Biology and NMR Laboratory (SBiNLab) and the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Michaela Söhn
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Torsten Schroeder
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Yanxiong Yu
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Frank G Zöllner
- Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Mannheim Institute for Intelligent Systems in Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Cooperative Core Facility Animal Scanner ZI, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Norbert Ponelies
- Orthopaedics & Trauma Surgery, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Xiaobo Zhou
- Department of Medicine I, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - André Zwicky
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Bioscience of ETH, Zurich, Switzerland
| | - Florian N Rohrbacher
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Bioscience of ETH, Zurich, Switzerland
| | - Vijaya R Pattabiraman
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Bioscience of ETH, Zurich, Switzerland
| | - Matthias Tanriver
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Bioscience of ETH, Zurich, Switzerland
| | - Alexander Bauer
- Structural Biology and NMR Laboratory (SBiNLab) and the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Hazem Ahmed
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences of ETH, Zurich, Switzerland
| | - Simon M Ametamey
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences of ETH, Zurich, Switzerland
| | - Philipp Riffel
- Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Rony Seger
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Jeffrey W Bode
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Bioscience of ETH, Zurich, Switzerland
| | - Rebecca C Wade
- Heidelberg Institute for Theoretical Studies (HITS), Heidelberg, Germany; Heidelberg University, Zentrum für Molekulare Biologie (ZMBH), DKFZ-ZMBH Alliance, and Interdisciplinary Center for Scientific Computing (IWR), Heidelberg, Germany
| | - Matthias P A Ebert
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; DKFZ-Hector Institute at the University Medical Center, Mannheim, Germany
| | - Birthe B Kragelund
- Structural Biology and NMR Laboratory (SBiNLab) and the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
| | - Elke Burgermeister
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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Neumann K, Vujinovic A, Kamara S, Zwicky A, Baldauf S, Bode JW. Synthesis of multi-module low density lipoprotein receptor class A domains with acid labile cyanopyridiniumylides (CyPY) as aspartic acid masking groups. RSC Chem Biol 2023; 4:292-299. [PMID: 37034404 PMCID: PMC10074552 DOI: 10.1039/d2cb00234e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
Low-density lipoprotein receptor class A domains (LA modules) are common ligand-binding domains of transmembrane receptors of approximately 40 amino acids that are involved in several cellular processes including endocytosis of extracellular targets. Due to their wide-ranging function and distribution among different transmembrane receptors, LA modules are of high interest for therapeutic applications. However, the efficient chemical synthesis of LA modules and derivatives is hindered by complications, many arising from the high abundance of aspartic acid and consequent aspartimide formation. Here, we report a robust, efficient and general applicable chemical synthesis route for accessing such LA modules, demonstrated by the synthesis and folding of the LA3 and LA4 modules of the low-density lipoprotein receptor, as well as a heterodimeric LA3-LA4 constructed by chemical ligation. The synthesis of the aspartic acid-rich LA domain peptides is made possible by the use of cyanopyridiniumylides (CyPY) - reported here for the first time - as a masking group for carboxylic acids. We show that cyanopyridiniumylide masked aspartic acid monomers are readily available building blocks for solid phase peptide synthesis and successfully suppress aspartimide formation. Unlike previously reported ylide-based carboxylic acid protecting groups, CyPY protected aspartic acids are converted to the free carboxylic acid by acidic hydrolysis and are compatible with all common residues and protecting groups. The chemical synthesis of Cys- and Asp-rich LA modules enables new access to a class of difficult to provide, but promising protein domains.
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Affiliation(s)
- Kevin Neumann
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Alex Vujinovic
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Saidu Kamara
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - André Zwicky
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Simon Baldauf
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
| | - Jeffrey W Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich Zürich 8093 Switzerland
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Rohrbacher F, Zwicky A, Bode JW. Chemical synthesis of a homoserine-mutant of the antibacterial, head-to-tail cyclized protein AS-48 by α-ketoacid-hydroxylamine (KAHA) ligation. Chem Sci 2017; 8:4051-4055. [PMID: 28580120 PMCID: PMC5434751 DOI: 10.1039/c7sc00789b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 03/23/2017] [Indexed: 12/15/2022] Open
Abstract
An antibacterial cyclic AS-48 protein was chemically synthesized by α-ketoacid-hydroxylamine (KAHA) ligation. Initial challenges associated with the exceptionally hydrophobic segments arising from the amphiphilic nature of the protein were resolved by the development of bespoke reaction conditions for hydrophobic segments, using hexafluoroisopropanol (HFIP) as a co-solvent. The synthetic protein displays similar biological activity and properties to those of the native protein. To support the current understanding of its antibacterial mode of action, we demonstrate the ability of AS-48 to be incorporated into synthetic multilamellar vesicles (MLVs).
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Affiliation(s)
- Florian Rohrbacher
- Laboratorium für Organische Chemie , Department of Chemistry and Applied Biosciences , ETH Zürich , 8093 Zürich , Switzerland .
| | - André Zwicky
- Laboratorium für Organische Chemie , Department of Chemistry and Applied Biosciences , ETH Zürich , 8093 Zürich , Switzerland .
| | - Jeffrey W Bode
- Laboratorium für Organische Chemie , Department of Chemistry and Applied Biosciences , ETH Zürich , 8093 Zürich , Switzerland . .,Institute of Transformative bio-Molecules (WPI-ITbM) , Nagoya University , Chikusa , Nagoya 464-8602 , Japan
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Thuaud F, Rohrbacher F, Zwicky A, Bode JW. Photoprotected Peptideα-Ketoacids and Hydroxylamines for Iterative and One-Pot KAHA Ligations: Synthesis of NEDD8. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201600264] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Frédéric Thuaud
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH-Zürich; CH-8093 Zürich
- Institute of Transformative bio-Molecules (WPI-ITbM); Nagoya University; Chikusa, Nagoya 464-8602 Japan
| | - Florian Rohrbacher
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH-Zürich; CH-8093 Zürich
| | - André Zwicky
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH-Zürich; CH-8093 Zürich
| | - Jeffrey W. Bode
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH-Zürich; CH-8093 Zürich
- Institute of Transformative bio-Molecules (WPI-ITbM); Nagoya University; Chikusa, Nagoya 464-8602 Japan
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Thuaud F, Rohrbacher F, Zwicky A, Bode JW. Incorporation of Acid-Labile Masking Groups for the Traceless Synthesis of C-Terminal Peptide α-Ketoacids. Org Lett 2016; 18:3670-3. [DOI: 10.1021/acs.orglett.6b01692] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Frédéric Thuaud
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
- Institute
of Transformative bio-Molecules (WPI−ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Florian Rohrbacher
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
| | - André Zwicky
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
- Institute
of Transformative bio-Molecules (WPI−ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
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