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Sundaram A, Chen C, Isik Reed N, Liu S, Ki Yeon S, McIntosh J, Tang YZ, Yang H, Adler M, Beresis R, Seiple IB, Sheppard D, DeGrado WF, Jo H. Dual antagonists of α5β1/αvβ1 integrin for airway hyperresponsiveness. Bioorg Med Chem Lett 2020; 30:127578. [PMID: 33007395 DOI: 10.1016/j.bmcl.2020.127578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 12/17/2022]
Abstract
Inhibition of integrin α5β1 emerges as a novel therapeutic option to block transmission of contractile forces during asthma attack. We designed and synthesized novel inhibitors of integrin α5β1 by backbone replacement of known αvβ1 integrin inhibitors. These integrin α5β1 inhibitors also retain the nanomolar potency against αvβ1 integrin, which shows promise for developing dual integrin α5β1/αvβ1 inhibitor. Introduction of hydrophobic adamantane group significantly boosted the potency as well as selectivity over integrin αvβ3. We also demonstrated one of the inhibitors (11) reduced airway hyperresponsiveness in ex vivo mouse tracheal ring assay. Results from this study will help guide further development of integrin α5β1 inhibitors as potential novel asthma therapeutics.
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Affiliation(s)
- Aparna Sundaram
- School of Medicine, University of California San Francisco, San Francisco, CA 94158, USA
| | - Chun Chen
- Pliant Therapeutics, 260 Littlefield Ave, South San Francisco, CA 94080, USA
| | - Nilgun Isik Reed
- School of Medicine, University of California San Francisco, San Francisco, CA 94158, USA
| | - Sean Liu
- Lung Biology Center, Department of Medicine, University of California San Francisco, San Francisco, CA 94158, USA
| | - Seul Ki Yeon
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Joel McIntosh
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - You-Zhi Tang
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Hyunjun Yang
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Marc Adler
- ChemPartner, 280 Utah Avenue, South San Francisco, CA 94080, USA
| | - Richard Beresis
- ChemPartner, 280 Utah Avenue, South San Francisco, CA 94080, USA
| | - Ian B Seiple
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Dean Sheppard
- School of Medicine, University of California San Francisco, San Francisco, CA 94158, USA
| | - William F DeGrado
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Hyunil Jo
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA.
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2
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Reed NI, Tang YZ, McIntosh J, Wu Y, Molnar KS, Civitavecchia A, Sheppard D, DeGrado WF, Jo H. Exploring N-Arylsulfonyl-l-proline Scaffold as a Platform for Potent and Selective αvβ1 Integrin Inhibitors. ACS Med Chem Lett 2016; 7:902-907. [PMID: 27774126 DOI: 10.1021/acsmedchemlett.6b00196] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 08/30/2016] [Indexed: 02/08/2023] Open
Abstract
One small molecule inhibitor of αvβ1 integrin, c8, shows antifibrotic effects in multiple in vivo mouse models. Here we synthesized c8 analogues and systematically investigate their structure-activity relationships (SAR) in αvβ1 integrin inhibition. N-Phenylsulfonyl-l-homoproline analogues of c8 maintained excellent potency against αvβ1 integrin while retaining good selectivity over other RGD integrins. In addition, 2-aminopyridine or cyclic guanidine analogues were shown to be equally potent to c8. A rigid phenyl linker increased the potency compared to c8, but the selectivity over other RGD integrins diminished. These results can provide further insights on design of αvβ1 integrin inhibitors as antifibrotics.
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Affiliation(s)
- Nilgun Isik Reed
- Department of Medicine, University of California−San Francisco, San Francisco, California 94153, United States
| | - You-Zhi Tang
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
- College of Veterinary Medicine, South China Agricultural University, Guangdong 510642, China
| | - Joel McIntosh
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
| | - Yibing Wu
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
| | - Kathleen S. Molnar
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
| | - Annafelicia Civitavecchia
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
| | - Dean Sheppard
- Department of Medicine, University of California−San Francisco, San Francisco, California 94153, United States
| | - William F. DeGrado
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
- Cardiovascular
Research Institute, University of California−San Francisco, San Francisco, California 94158, United States
| | - Hyunil Jo
- Department of Pharmaceutical Chemistry, University of California−San Francisco, San Francisco, California 94158, United States
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3
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Ray AM, Schaffner F, Janouskova H, Noulet F, Rognan D, Lelong-Rebel I, Choulier L, Blandin AF, Lehmann M, Martin S, Kapp T, Neubauer S, Rechenmacher F, Kessler H, Dontenwill M. Single cell tracking assay reveals an opposite effect of selective small non-peptidic α5β1 or αvβ3/β5 integrin antagonists in U87MG glioma cells. Biochim Biophys Acta Gen Subj 2014; 1840:2978-87. [DOI: 10.1016/j.bbagen.2014.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 04/11/2014] [Accepted: 04/29/2014] [Indexed: 01/24/2023]
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4
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The functions and applications of RGD in tumor therapy and tissue engineering. Int J Mol Sci 2013; 14:13447-62. [PMID: 23807504 PMCID: PMC3742196 DOI: 10.3390/ijms140713447] [Citation(s) in RCA: 160] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 06/17/2013] [Accepted: 06/20/2013] [Indexed: 11/16/2022] Open
Abstract
Arginine-Glycine-Aspartic (RGD), is the specific recognition site of integrins with theirs ligands, and regulates cell-cell and cell-extracellular matrix interactions. The RGD motif can be combined with integrins overexpressed on the tumor neovasculature and tumor cells with a certain affinity, becoming the new target for imaging agents, and drugs, and gene delivery for tumor treatment. Further, RGD as a biomimetic peptide can also promote cell adherence to the matrix, prevent cell apoptosis and accelerate new tissue regeneration. Functionalizing material surfaces with RGD can improve cell/biomaterial interactions, which facilitates the generation of tissue-engineered constructs. This paper reviews the main functions and advantages of RGD, describes the applications of RGD in imaging agents, drugs, gene delivery for tumor therapy, and highlights the role of RGD in promoting the development of tissue engineering (bone regeneration, cornea repair, artificial neovascularization) in recent years.
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Schaffner F, Ray AM, Dontenwill M. Integrin α5β1, the Fibronectin Receptor, as a Pertinent Therapeutic Target in Solid Tumors. Cancers (Basel) 2013; 5:27-47. [PMID: 24216697 PMCID: PMC3730317 DOI: 10.3390/cancers5010027] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/09/2013] [Accepted: 01/11/2013] [Indexed: 12/11/2022] Open
Abstract
Integrins are transmembrane heterodimeric proteins sensing the cell microenvironment and modulating numerous signalling pathways. Changes in integrin expression between normal and tumoral cells support involvement of specific integrins in tumor progression and aggressiveness. This review highlights the current knowledge about α5β1 integrin, also called the fibronectin receptor, in solid tumors. We summarize data showing that α5β1 integrin is a pertinent therapeutic target expressed by tumoral neovessels and tumoral cells. Although mainly evaluated in preclinical models, α5β1 integrin merits interest in particular in colon, breast, ovarian, lung and brain tumors where its overexpression is associated with a poor prognosis for patients. Specific α5β1 integrin antagonists will be listed that may represent new potential therapeutic agents to fight defined subpopulations of particularly aggressive tumors.
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Affiliation(s)
- Florence Schaffner
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Tumoral Signaling and Therapeutic Targets, Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
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Goswami RK, Liu Y, Liu C, Lerner RA, Sinha SC. Synthesis and evaluation of the aldolase antibody-derived chemical-antibodies targeting α5β1 integrin. Mol Pharm 2012; 10:538-43. [PMID: 23102054 DOI: 10.1021/mp3004463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Integrin α5β1 is an important therapeutic target that can be inhibited using an aldolase antibody (Ab)-derived chemical-Ab (chem-Ab) for the treatment of multiple human diseases, including cancers. A fairly optimized anti-integrin α5β1 chem-Ab 38C2-4e was obtained using an in situ convergent chemical programming (CP) approach, which minimized the time and effort needed to develop a chem-Ab. Multiple Ab-programming agents (PAs) 4a-e could be prepared rapidly using the Cu-catalyzed alkyne-azide coupling (Cu-AAC) reaction of an α5β1 inhibitor 2 with multiple linkers 3a-e, either before or after conjugating the linkers into Ab 38C2 binding sites. In these two-steps processes, the products after step 1 can be used in the next step without performing an extensive purification or analysis of the Ab-PAs or Ab-linker conjugates affording chem-Abs 38C2-(4a-e). Flow cytometry assay was used to determine the binding of the chem-Abs to U87 human glioblastoma cells expressing α5β1 integrin and identify 38C2-3e as the strongest binder. Further studies revealed that 38C2-3e strongly inhibited proliferation of U87 cells and tube formation of HUVEC in the matrigel assay, as well as tumor growth and metastasis of 4T1 cells in vivo.
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Affiliation(s)
- Rajib K Goswami
- Department of Molecular Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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