Abstract
Starting from the antimalarial drugs chloroquine and hydroxychloroquine, we conducted a structural optimization on the side chain of chloroquine by introducing amino substituted longer chains thus leading to a series of novel aminochloroquine derivatives. Anti-infectious effects against SARS-Cov2 spike glycoprotein as well as immunosuppressive and anti-inflammatory activities of the new compounds were evaluated. Distinguished immunosuppressive activities on the responses of T cell, B cell and macrophages upon mitogen and pathogenic signaling were manifested. Compounds 9-11 displayed the most promising inhibitory effects both on cellular proliferation and on the production of multiple pro-inflammatory cytokines, including IL-17, IFN-γ, IL-6, IL-1β and TNF-α, which might be insightful in the pursuit of treatment for immune disorders and inflammatory diseases.
Keywords:
Aminochloroquine; Anti-inflammatory; Antivirus; Choroquine; Cytokines.
Copyright © 2021 Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amines / chemistry
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Amines / pharmacology*
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Anti-Inflammatory Agents, Non-Steroidal / chemical synthesis
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Anti-Inflammatory Agents, Non-Steroidal / chemistry
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Anti-Inflammatory Agents, Non-Steroidal / pharmacology*
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Antiviral Agents / chemical synthesis
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Antiviral Agents / chemistry
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Antiviral Agents / pharmacology*
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B-Lymphocytes / immunology
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Cell Proliferation / drug effects
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Chloroquine / chemical synthesis
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Chloroquine / chemistry
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Chloroquine / pharmacology*
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Cytokines / metabolism
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Dose-Response Relationship, Drug
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Humans
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Macrophages / drug effects
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Macrophages / immunology
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Microbial Sensitivity Tests
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Molecular Structure
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SARS-CoV-2 / drug effects*
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SARS-CoV-2 / metabolism
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Spike Glycoprotein, Coronavirus / antagonists & inhibitors*
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Spike Glycoprotein, Coronavirus / metabolism
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Structure-Activity Relationship
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T-Lymphocytes / drug effects
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T-Lymphocytes / immunology
Substances
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Amines
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Anti-Inflammatory Agents, Non-Steroidal
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Antiviral Agents
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Cytokines
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Spike Glycoprotein, Coronavirus
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Chloroquine