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Bench-to-bedside: Innovation of small molecule anti-SARS-CoV-2 drugs in China

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Summary: PF-07321332, an orally bioavailable SARS-CoV-2 main protease inhibitor, has been discovered with in vitro pan-human coronavirus antiviral activity and excellent off-target selectivity and in vivo safety profiles. This new drug has shown promise in countering the threat of COVID-19 with its oral activity and safety in clinical trials.

SCIENCE (2021)

Article Multidisciplinary Sciences

Plitidepsin has potent preclinical efficacy against SARS-CoV-2 by targeting the host protein eEF1A

Kris M. White et al.

Summary: The study revealed that plitidepsin possesses potent antiviral activity against SARS-CoV-2, more effective than the approved drug remdesivir. By inhibiting the eukaryotic translation elongation factor 1A, plitidepsin can significantly reduce viral replication of SARS-CoV-2 in the lungs of mice, making it a promising candidate for COVID-19 treatment.

SCIENCE (2021)

Article Multidisciplinary Sciences

SARS-CoV-2 M-pro inhibitors with antiviral activity in a transgenic mouse model

Jingxin Qiao et al.

Summary: The study designed and synthesized 32 new M-pro inhibitors containing bicycloproline, which showed inhibitory effects on SARS-CoV-2. Compounds MI-09 and MI-30 exhibited excellent antiviral activity in cell-based assays and significantly reduced lung viral loads and lung lesions in a transgenic mouse model of SARS-CoV-2 infection. Both also displayed good pharmacokinetic properties and safety in rats.

SCIENCE (2021)

Article Multidisciplinary Sciences

Preclinical characterization of an intravenous coronavirus 3CL protease inhibitor for the potential treatment of COVID19

Britton Boras et al.

Summary: Researchers found that PF-07304814 exhibits broad-spectrum activity in inhibiting SARS-CoV and SARS-CoV-2, supported by its ADME and safety profile for clinical development. The 3CL protease, crucial in various coronaviruses, is effectively inhibited by PF-00835231 as a single agent, and shows even better results in combination with remdesivir.

NATURE COMMUNICATIONS (2021)

Article Multidisciplinary Sciences

Molecular insights into receptor binding of recent emerging SARS-CoV-2 variants

Pengcheng Han et al.

Summary: Multiple SARS-CoV-2 variants, including Alpha, Beta, and Gamma, were studied in terms of their interactions with the human ACE2 receptor. The study identified key residues in the receptor-binding domain that affect binding affinity and demonstrated the potential of soluble ACE2 protein in preventing viral entry. The findings could contribute to the development of novel therapeutic and prophylactic agents targeting these emerging mutants.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Multidisciplinary

Potent Noncovalent Inhibitors of the Main Protease of SARS-CoV-2 from Molecular Sculpting of the Drug Perampanel Guided by Free Energy Perturbation Calculations

Chun-Hui Zhang et al.

Summary: Starting from known drugs, the study redesigned perampanel into potent noncovalent inhibitors of SARS-CoV-2 main protease with ca. 20 nM IC50 values. Free-energy perturbation calculations and high-resolution X-ray crystal structures guided the design efforts and rapid development of effective analogues. Cell-based antiviral assays confirmed the potential of the compounds for COVID-19 treatment, highlighting the power of computational chemistry in drug discovery.

ACS CENTRAL SCIENCE (2021)

Article Multidisciplinary Sciences

X-ray screening identifies active site and allosteric inhibitors of SARS-CoV-2 main protease

Sebastian Guenther et al.

Summary: The study identified 37 compounds that bind to the SARS-CoV-2 main protease through a high-throughput x-ray crystallographic screen of two repurposing drug libraries. Among these compounds, one peptidomimetic and six nonpeptidic compounds showed antiviral activity in cell-based viral reduction assays at nontoxic concentrations. The identification of two allosteric binding sites presents potential targets for drug development against SARS-CoV-2.

SCIENCE (2021)

Article Pharmacology & Pharmacy

Can remdesivir and its parent nucleoside GS-441524 be potential oral drugs? An in vitro and in vivo DMPK assessment

Jiashu Xie et al.

Summary: The study examined the potential of Remdesivir and its parent nucleoside GS-441524 as oral drugs for treating COVID-19. Results showed that Remdesivir had poor stability in vitro, while GS-441524 exhibited better metabolic stability and oral bioavailability, indicating its potential as a promising oral antiviral drug for COVID-19 treatment.

ACTA PHARMACEUTICA SINICA B (2021)

Article Biochemistry & Molecular Biology

Identification of novel bat coronaviruses sheds light on the evolutionary origins of SARS-CoV-2 and related viruses

Hong Zhou et al.

Summary: A study in Yunnan province, China, found the existence of bat coronaviruses related to both SARS-CoV-2 and SARS-CoV, with RpYN06 virus being the closest relative of SARS-CoV-2. Ecological modeling predicted the co-existence of up to 23 Rhinolophus bat species, with the largest hot-spots extending from South Laos and Vietnam to southern China. The study highlights the remarkable diversity of bat coronaviruses at the local scale.
Article Biochemistry & Molecular Biology

Coupling of N7-methyltransferase and 3′-5′ exoribonuclease with SARS-CoV-2 polymerase reveals mechanisms for capping and proofreading

Liming Yan et al.

Summary: The study presents the cryo-EM structure of the SARS-CoV-2 replication-transcription complex (RTC) Cap(0)-RTC, demonstrating the proofreading mechanism of nsp14 and the role of nsp10/nsp14 in the formation of the capping complex.
Review Pharmacology & Pharmacy

Drug metabolic stability in early drug discovery to develop potential lead compounds

Siva Nageswara Rao Gajula et al.

Summary: Understanding the metabolic stability of a drug substance is crucial for determining dosing and frequency. Modifying lead compounds can improve metabolic stability and reduce dosing frequency. Predicting in vivo total clearance can be done through in vitro intrinsic clearance data and hepatic clearance models.

DRUG METABOLISM REVIEWS (2021)

Editorial Material Biochemistry & Molecular Biology

Decoding molnupiravir-induced mutagenesis in SARS-CoV-2

Luis Menendez-Arias

Summary: Molnupiravir can be incorporated into viral RNA and used as template for RNA synthesis, leading to error catastrophe in SARS-CoV-2.

JOURNAL OF BIOLOGICAL CHEMISTRY (2021)

Article Chemistry, Medicinal

Structure-Guided Design of Conformationally Constrained Cyclohexane Inhibitors of Severe Acute Respiratory Syndrome Coronavirus-2 3CL Protease

Chamandi S. Dampalla et al.

Summary: Novel inhibitors have been synthesized that effectively inhibit coronavirus protease, showing potential for treating COVID-19 and providing a means to access new chemical space and optimize pharmacological activity.

JOURNAL OF MEDICINAL CHEMISTRY (2021)

Article Biochemistry & Molecular Biology

Mechanism of molnupiravir-induced SARS-CoV-2 mutagenesis

Florian Kabinger et al.

Summary: Molnupiravir is an oral antiviral drug candidate that increases viral RNA mutations frequency and inhibits replication of SARS-CoV-2 by altering the substrate preference of RdRp. This two-step mutagenesis mechanism can explain the broad-spectrum antiviral activity of molnupiravir, making it a promising COVID-19 treatment option.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2021)

Article Multidisciplinary Sciences

Fe-S cofactors in the SARS-CoV-2 RNA-dependent RNA polymerase are potential antiviral targets

Nunziata Maio et al.

Summary: Research has shown that the catalytic subunit nsp12 of the SARS-CoV-2 RdRp complex ligates two iron-sulfur metal cofactors which are essential for viral replication and interaction with the viral helicase. Oxidation of these clusters by TEMPOL inhibits RdRp activity and blocks SARS-CoV-2 replication in cell culture, indicating that these iron-sulfur clusters could be targeted for therapy of COVID-19.

SCIENCE (2021)

Article Multidisciplinary Sciences

Masitinib is a broad coronavirus 3CL inhibitor that blocks replication of SARS-CoV-2

Nir Drayman et al.

Summary: This study identified a drug called masitinib that can inhibit the replication of both SARS-CoV-2 and OC43 virus, and acts by competitively inhibiting 3CLpro. The drug showed strong antiviral effects in in vivo experiments on mice infected with SARS-CoV-2, and was effective against multiple variants in vitro.

SCIENCE (2021)

Review Biochemistry & Molecular Biology

SARS-CoV-2: from its discovery to genome structure, transcription, and replication

Ayslan Castro Brant et al.

Summary: SARS-CoV-2 is a highly contagious respiratory virus causing adult atypical pneumonia COVID-19 with severe acute respiratory syndrome (SARS). This virus enters susceptible cells and directly translates polyproteins to initiate viral genome replication and transcription.

CELL AND BIOSCIENCE (2021)

Review Biochemistry & Molecular Biology

Natural Products, Alone or in Combination with FDA-Approved Drugs, to Treat COVID-19 and Lung Cancer

Liyan Yang et al.

Summary: The COVID-19 pandemic and lung cancer have posed serious threats to global public health, and recent studies have shown that natural products may serve as effective treatments for lung diseases, particularly in combination therapy and with the assistance of nanotechnology.

BIOMEDICINES (2021)

Article Biochemistry & Molecular Biology

Azvudine is a thymus-homing anti-SARS-CoV-2 drug effective in treating COVID-19 patients

Jin-Lan Zhang et al.

Summary: FNC, a nucleoside analog, has shown activity against HIV-1 and SARS-CoV-2. Research suggests FNC's anti-viral effect is concentrated in the thymus, promoting immunity. Clinical trials have demonstrated oral FNC's ability to effectively cure COVID-19 patients.

SIGNAL TRANSDUCTION AND TARGETED THERAPY (2021)

Review Biochemistry & Molecular Biology

Co-crystallization and structure determination: An effective direction for anti-SARS-CoV-2 drug discovery

Zhonglei Wang et al.

Summary: This study focuses on utilizing X-ray crystal structures and computational analysis to discover and optimize anti-SARS-CoV-2 drugs, with a focus on the interaction of newly identified small-molecule inhibitors with drug targets.

COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL (2021)

Article Chemistry, Medicinal

Rational Design of Hybrid SARS-CoV-2 Main Protease Inhibitors Guided by the Superimposed Cocrystal Structures with the Peptidomimetic Inhibitors GC-376, Telaprevir, and Boceprevir

Zilei Xia et al.

Summary: Novel hybrid inhibitors UAWJ9-36-1 and UAWJ9-36-3, designed based on the crystal structure of SARS-CoV-2 M-Pro, showed potent enzymatic inhibition against multiple human coronaviruses. These inhibitors have promising potential as broad-spectrum antivirals against coronaviruses.

ACS PHARMACOLOGY & TRANSLATIONAL SCIENCE (2021)

Letter Gastroenterology & Hepatology

Do proton pump inhibitors influence SARS-CoV-2 related outcomes? A meta-analysis

Guo-Fu Li et al.

Article Biochemistry & Molecular Biology

Cathepsin L plays a key role in SARS-CoV-2 infection in humans and humanized mice and is a promising target for new drug development

Miao-Miao Zhao et al.

Summary: CTSL plays a crucial role in COVID-19 patients, with its levels positively correlated with disease severity. Research showed that CTSL promotes SARS-CoV-2 virus entry into cells, and the CTSL inhibitor amantadine can inhibit this process, providing a direction for the development of new anti-COVID-19 drugs.

SIGNAL TRANSDUCTION AND TARGETED THERAPY (2021)

Letter Biochemistry & Molecular Biology

Identification of bis-benzylisoquinoline alkaloids as SARS-CoV-2 entry inhibitors from a library of natural products

Chang-Long He et al.

SIGNAL TRANSDUCTION AND TARGETED THERAPY (2021)

Article Multidisciplinary Sciences

A new coronavirus associated with human respiratory disease in China

Fan Wu et al.

NATURE (2020)

Article Multidisciplinary Sciences

A pneumonia outbreak associated with a new coronavirus of probable bat origin

Peng Zhou et al.

NATURE (2020)

Article Multidisciplinary Sciences

Structural basis for the recognition of SARS-CoV-2 by full-length human ACE2

Renhong Yan et al.

SCIENCE (2020)

Article Biochemistry & Molecular Biology

Structural Basis for RNA Replication by the SARS-CoV-2 Polymerase

Quan Wang et al.

Article Biochemistry & Molecular Biology

Structural and Functional Basis of SARS-CoV-2 Entry by Using Human ACE2

Qihui Wang et al.

Article Multidisciplinary Sciences

Structure of the RNA-dependent RNA polymerase from COVID-19 virus

Yan Gao et al.

SCIENCE (2020)

Article Multidisciplinary Sciences

Structure of replicating SARS-CoV-2 polymerase

Hauke S. Hillen et al.

NATURE (2020)

Article Multidisciplinary Sciences

Identifying SARS-CoV-2-related coronaviruses in Malayan pangolins

Tommy Tsan-Yuk Lam et al.

NATURE (2020)

Article Multidisciplinary Sciences

Structure of Mpro from SARS-CoV-2 and discovery of its inhibitors

Zhenming Jin et al.

NATURE (2020)

Article Biochemistry & Molecular Biology

Molecular Architecture of the SARS-CoV-2 Virus

Hangping Yao et al.

Article Multidisciplinary Sciences

Papain-like protease regulates SARS-CoV-2 viral spread and innate immunity

Donghyuk Shin et al.

NATURE (2020)

Review Pharmacology & Pharmacy

Physiological and pathological regulation of ACE2, the SARS-CoV-2 receptor

Yanwei Li et al.

PHARMACOLOGICAL RESEARCH (2020)

Article Chemistry, Physical

Discovery of COVID-19 Inhibitors Targeting the SARS-CoV-2 Nsp13 Helicase

Mark Andrew White et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Multidisciplinary Sciences

Structures and distributions of SARS-CoV-2 spike proteins on intact virions

Zunlong Ke et al.

NATURE (2020)

Article Multidisciplinary Sciences

Architecture of a SARS-CoV-2 mini replication and transcription complex

Liming Yan et al.

NATURE COMMUNICATIONS (2020)

Editorial Material Medicine, General & Internal

Covid-19: What now for remdesivir?

Jeremy Hsu

BMJ-BRITISH MEDICAL JOURNAL (2020)

Review Biochemistry & Molecular Biology

ACE2: the molecular doorway to SARS-CoV-2

Miriam Marlene Medina-Enriquez et al.

CELL AND BIOSCIENCE (2020)

Review Chemistry, Multidisciplinary

GS-5734: a potentially approved drug by FDA against SARS-Cov-2

Zhonglei Wang et al.

NEW JOURNAL OF CHEMISTRY (2020)

Article Multidisciplinary Sciences

Recombinant RNA-Dependent RNA Polymerase Complex of Ebola Virus

Egor P. Tchesnokov et al.

SCIENTIFIC REPORTS (2018)

Article Cell Biology

Broad-spectrum antiviral GS-5734 inhibits both epidemic and zoonotic coronaviruses

Timothy P. Sheahan et al.

SCIENCE TRANSLATIONAL MEDICINE (2017)

Article Medicine, General & Internal

Late Ebola virus relapse causing meningoencephalitis: a case report

Michael Jacobs et al.

LANCET (2016)

Article Multidisciplinary Sciences

Therapeutic efficacy of the small molecule GS-5734 against Ebola virus in rhesus monkeys

Travis K. Warren et al.

NATURE (2016)

Article Chemistry, Medicinal

Synthesis of new 2′-deoxy-2′-fluoro-4′-azido nucleoside analogues as potent anti-HIV agents

Qiang Wang et al.

EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY (2011)

Article Biochemistry & Molecular Biology

Design of wide-spectrum inhibitors targeting coronavirus main proteases

HT Yang et al.

PLOS BIOLOGY (2005)

Article Multidisciplinary Sciences

The crystal structures of severe acute respiratory syndrome virus main protease and its complex with an inhibitor

HT Yang et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2003)