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Matsumoto K, Kuwata T, Tolbert WD, Richard J, Ding S, Prévost J, Takahama S, Judicate GP, Ueno T, Nakata H, Kobayakawa T, Tsuji K, Tamamura H, Smith AB, Pazgier M, Finzi A, Matsushita S. Characterization of a Novel CD4 Mimetic Compound YIR-821 against HIV-1 Clinical Isolates. J Virol 2023; 97:e0163822. [PMID: 36511698 PMCID: PMC9888228 DOI: 10.1128/jvi.01638-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/15/2022] [Indexed: 12/15/2022] Open
Abstract
Small CD4-mimetic compound (CD4mc), which inhibits the interaction between gp120 with CD4, acts as an entry inhibitor and induces structural changes in the HIV-1 envelope glycoprotein trimer (Env) through its insertion within the Phe43 cavity of gp120. We recently developed YIR-821, a novel CD4mc, that has potent antiviral activity and lower toxicity than the prototype NBD-556. To assess the possibility of clinical application of YIR-821, we tested its antiviral activity using a panel of HIV-1 pseudoviruses from different subtypes. YIR-821 displayed entry inhibitor activity against 53.5% (21/40) of the pseudoviruses tested and enhanced neutralization mediated by coreceptor binding site (CoRBS) antibodies in 50% (16/32) of these. Furthermore, when we assessed the antiviral effects using a panel of pseudoviruses and autologous plasma IgG, enhancement of antibody-mediated neutralization activity was observed for 48% (15/31) of subtype B strains and 51% (28/55) of non-B strains. The direct antiviral activity of YIR-821 as an entry inhibitor was observed in 53% of both subtype B (27/51) and non-B subtype (40/75) pseudoviruses. Enhancement of antibody-dependent cellular cytotoxicity was also observed with YIR-821 for all six selected clinical isolates, as well as for the transmitted/founder (T/F) CH58 virus-infected cells. The sequence diversity in the CD4 binding site as well as other regions, such as the gp120 inner domain layers or gp41, may be involved in the multiple mechanisms related to the sensitive/resistant phenotype of the virus to YIR-821. Our findings may facilitate the clinical application of YIR-821. IMPORTANCE Small CD4-mimetic compound (CD4mc) interacts with the Phe43 cavity and triggers conformational changes, enhancing antibody-mediated neutralization and antibody-dependent cellular cytotoxicity (ADCC). Here, we evaluated the effect of YIR-821, a novel CD4mc, against clinical isolates, including both subtype B and non-B subtype viruses. Our results confirm the desirable properties of YIR-821, which include entry inhibition, enhancement of IgG-neutralization, binding, and ADCC, in addition to low toxicity and long half-life in a rhesus macaque model, that might facilitate the clinical application of this novel CD4mc. Our observation of primary viruses that are resistant to YIR-821 suggests that further development of CD4mcs with different structural properties is required.
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Affiliation(s)
- Kaho Matsumoto
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeo Kuwata
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - William D. Tolbert
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Jonathan Richard
- Centre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Shilei Ding
- Centre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Jérémie Prévost
- Centre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Shokichi Takahama
- Laboratory of Immunosenescence, Center for Vaccine and Adjuvant Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - George P. Judicate
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Takamasa Ueno
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Hirotomo Nakata
- Department of Hematology, Rheumatology, and Infectious Diseases, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Amos B. Smith
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Marzena Pazgier
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Andrés Finzi
- Centre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Shuzo Matsushita
- Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
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Abstract
The HIV Env glycoprotein is the surface glycoprotein responsible for viral entry into CD4+ immune cells. During infection, Env also serves as a primary target for antibody responses, which are robust but unable to control virus replication. Immune evasion by HIV-1 Env appears to employ complex mechanisms to regulate what antigenic states are presented to the immune system. Immunodominant features appear to be distinct from epitopes that interfere with Env functions in mediating infection. Further, cell-cell transmission studies indicate that vulnerable conformational states are additionally hidden from recognition on infected cells, even though the presence of Env at the cell surface is required for viral infection through the virological synapse. Cell-cell infection studies support that Env on infected cells is presented in distinct conformations from that on virus particles. Here we review data regarding the regulation of conformational states of Env and assess how regulated sorting of Env within the infected cell may underlie mechanisms to distinguish Env on the surface of virus particles versus Env on the surface of infected cells. These mechanisms may allow infected cells to avoid opsonization, providing cell-to-cell infection by HIV with a selective advantage during evolution within an infected individual. Understanding how distinct Env conformations are presented on cells versus viruses may be essential to designing effective vaccine approaches and therapeutic strategies to clear infected cell reservoirs.
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Affiliation(s)
- Connie Zhao
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Hongru Li
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Talia H. Swartz
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin K. Chen
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Malik NP, Naz M, Ashiq U, Jamal RA, Gul S, Saleem F, Khan KM, Yousuf S. Oxamide Derivatives as Potent
α
‐Glucosidase Inhibitors: Design, Synthesis,
In Vitro
Inhibitory Screening and
In Silico
Docking Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202101709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | - Maira Naz
- Department of Chemistry University of Karachi Karachi 75270 Pakistan
| | - Uzma Ashiq
- Department of Chemistry University of Karachi Karachi 75270 Pakistan
| | - Rifat A. Jamal
- Department of Chemistry University of Karachi Karachi 75270 Pakistan
| | - Sana Gul
- Department of Chemistry Federal Urdu University of Art Science and Technology Karachi Pakistan
| | - Faiza Saleem
- H. E. J. Research Institute of Chemistry International Center for Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan
| | - Khalid M. Khan
- H. E. J. Research Institute of Chemistry International Center for Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan
- Department of Clinical Pharmacy Institute for Research and Medical Consultations (IRMC) Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Sammer Yousuf
- H. E. J. Research Institute of Chemistry International Center for Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan
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Zhao C, Princiotto AM, Nguyen HT, Zou S, Zhao ML, Zhang S, Herschhorn A, Farrell M, Pahil K, Melillo B, Sambasivarao SV, Abrams C, Smith AB, Madani N, Sodroski J. Strain-Dependent Activation and Inhibition of Human Immunodeficiency Virus Entry by a Specific PF-68742 Stereoisomer. J Virol 2019; 93:e01197-19. [PMID: 31391272 PMCID: PMC6803283 DOI: 10.1128/jvi.01197-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 08/03/2019] [Indexed: 12/27/2022] Open
Abstract
Human immunodeficiency virus (HIV-1) entry into cells is mediated by the viral envelope glycoprotein (Env) trimer, which consists of three gp120 exterior glycoproteins and three gp41 transmembrane glycoproteins. When gp120 binds sequentially to the receptors CD4 and CCR5 on the target cell, the metastable Env trimer is triggered to undergo entry-related conformational changes. PF-68742 is a small molecule that inhibits the infection of a subset of HIV-1 strains by interfering with an Env function other than receptor binding. Determinants of HIV-1 resistance to PF-68742 map to the disulfide loop and fusion peptide of gp41. Of the four possible PF-68742 stereoisomers, only one, MF275, inhibited the infection of CD4-positive CCR5-positive cells by some HIV-1 strains. MF275 inhibition of these HIV-1 strains occurred after CD4 binding but before the formation of the gp41 six-helix bundle. Unexpectedly, MF275 activated the infection of CD4-negative CCR5-positive cells by several HIV-1 strains resistant to the inhibitory effects of the compound in CD4-positive target cells. In contrast to CD4 complementation by CD4-mimetic compounds, activation of CD4-independent infection by MF275 did not depend upon the availability of the gp120 Phe 43 cavity. Sensitivity to inhibitors indicates that MF275-activated virus entry requires formation/exposure of the gp41 heptad repeat (HR1) as well as CCR5 binding. MF275 apparently activates a virus entry pathway parallel to that triggered by CD4 and CD4-mimetic compounds. Strain-dependent divergence in Env conformational transitions allows different outcomes, inhibition or activation, in response to MF275. Understanding the mechanisms of MF275 activity should assist efforts to optimize its utility.IMPORTANCE Envelope glycoprotein (Env) spikes on the surface of human immunodeficiency virus (HIV-1) bind target cell receptors, triggering changes in the shape of Env. We studied a small molecule, MF275, that also induced shape changes in Env. The consequences of MF275 interaction with Env depended on the HIV-1 strain, with infection by some viruses inhibited and infection by other viruses enhanced. These studies reveal the strain-dependent diversity of HIV-1 Envs as they undergo shape changes in proceeding down the entry pathway. Appreciation of this diversity will assist attempts to develop broadly active inhibitors of HIV-1 entry.
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Affiliation(s)
- Connie Zhao
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Amy M Princiotto
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Hanh T Nguyen
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Shitao Zou
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Meiqing Lily Zhao
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Shijian Zhang
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Alon Herschhorn
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts, USA
- Division of Infectious Diseases and International Medicine, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mark Farrell
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Karanbir Pahil
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Bruno Melillo
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Somisetti V Sambasivarao
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Cameron Abrams
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Amos B Smith
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Navid Madani
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts, USA
| | - Joseph Sodroski
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts, USA
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
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Activation and Inactivation of Primary Human Immunodeficiency Virus Envelope Glycoprotein Trimers by CD4-Mimetic Compounds. J Virol 2017; 91:JVI.01880-16. [PMID: 27881646 DOI: 10.1128/jvi.01880-16] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/15/2016] [Indexed: 12/22/2022] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) entry into cells is mediated by the viral envelope glycoproteins (Env), a trimer of three gp120 exterior glycoproteins, and three gp41 transmembrane glycoproteins. The metastable Env is triggered to undergo entry-related conformational changes when gp120 binds sequentially to the receptors, CD4 and CCR5, on the target cell. Small-molecule CD4-mimetic compounds (CD4mc) bind gp120 and act as competitive inhibitors of gp120-CD4 engagement. Some CD4mc have been shown to trigger Env prematurely, initially activating Env function, followed by rapid and irreversible inactivation. Here, we study CD4mc with a wide range of anti-HIV-1 potencies and demonstrate that all tested CD4mc are capable of activating as well as inactivating Env function. Biphasic dose-response curves indicated that the occupancy of the protomers in the Env trimer governs viral activation versus inactivation. One CD4mc bound per Env trimer activated HIV-1 infection. Envs with two CD4mc bound were activated for infection of CD4-negative, CCR5-positive cells, but the infection of CD4-positive, CCR5-positive cells was inhibited. Virus was inactivated when all three Env protomers were occupied by the CD4mc, and gp120 shedding from the Env trimer was increased in the presence of some CD4mc. Env reactivity and the on rates of CD4mc binding to the Env trimer were found to be important determinants of the potency of activation and entry inhibition. Cross-sensitization of Env protomers that do not bind the CD4mc to neutralization by an anti-V3 antibody was not evident. These insights into the mechanism of antiviral activity of CD4mc should assist efforts to optimize their potency and utility. IMPORTANCE The trimeric envelope glycoproteins of human immunodeficiency virus type 1 (HIV-1) mediate virus entry into host cells. Binding to the host cell receptors, CD4 and CCR5, triggers changes in the conformation of the HIV-1 envelope glycoprotein trimer important for virus entry. Small-molecule CD4-mimetic compounds inhibit HIV-1 infection by multiple mechanisms: (i) direct blockade of the interaction between the gp120 exterior envelope glycoprotein and CD4; (ii) premature triggering of conformational changes in the envelope glycoproteins, leading to irreversible inactivation; and (iii) exposure of cryptic epitopes to antibodies, allowing virus neutralization. The consequences of the binding of the CD4-mimetic compound to the HIV-1 envelope glycoproteins depends upon how many of the three subunits of the trimer are bound and upon the propensity of the envelope glycoproteins to undergo conformational changes. Understanding the mechanistic factors that influence the activity of CD4-mimetic compounds can help to improve their potency and coverage of diverse HIV-1 strains.
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Mamedov VA, Mamedova VL, Khikmatova GZ, Mironova EV, Krivolapov DB, Bazanova OB, Chachkov DV, Katsyuba SA, Rizvanov IK, Latypov SK. A novel acid-catalyzed rearrangement of 2-substituted-3-(2-nitrophenyl)oxiranes for the synthesis of di- and mono-oxalamides. RSC Adv 2016. [DOI: 10.1039/c6ra02586b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new acid-catalyzed rearrangement of oxiranes for the syntheses of biologically important pharmaceutical molecules with anthranilic acid and oxalamide moieties has been discovered.
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Affiliation(s)
- Vakhid A. Mamedov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
- Kazan National Research Technological University
| | - Vera L. Mamedova
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
- Kazan National Research Technological University
| | | | - Ekaterina V. Mironova
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
| | - Dmitry B. Krivolapov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
| | - Olga B. Bazanova
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
| | - Denis V. Chachkov
- Kazan National Research Technological University
- 420015 Kazan
- Russian Federation
| | - Sergey A. Katsyuba
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
| | - Il'dar Kh Rizvanov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
| | - Shamil K. Latypov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- 420088 Kazan
- Russian Federation
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Zhan Z, Cheng X, Ma X, Li J, Hai L, Wu Y. Hydrogen peroxide-promoted metal free oxidative amidation of 2-oxoaldehydes: a facile access to unsymmetrical oxamides. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Zheng Y, Zhan Z, Cheng X, Ma X, Li J, Hai L, Wu Y. Cumyl Hydroperoxide-Promoted Oxidative Amidation of 2-Oxoaldehydes with Amines under Metal-Free Conditions for the Synthesis of Unsymmetrical Oxamides. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yang Zheng
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Zhen Zhan
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Xu Cheng
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Xiaojun Ma
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Jie Li
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Li Hai
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Yong Wu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
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