influenza virus-in-4

Influenza virus-IN-4 (compound 11e) is a potent inhibitor of influenza virus neuraminidase, effective against H5N1 (IC50: 3.4 μM), H5N2 (IC50: 0.094 μM), H5N6 (IC50: 0.79 μM), and H5N8 (IC50: 0.077 μM). It inhibits NA (neuraminidase) and exhibits low cytotoxicity (CC50 > 200 μM), and is not significantly toxic to mice at 1500 mg/kg.

Influenza A virus-IN-4 (compound 23b), a derivative of Oseltamivir, is a highly effective neuraminidase inhibitor that exerts potent inhibitory effects on influenza viruses [1].

1. Ginkgetin has anti-influenza virus and anti-fungal activities. 2. Ginkgetin has anti-inflammatory activity, can down-regulates COX-2 induction in vivo against skin inflammatory responses. 3. Ginkgetin is a good STAT3 inhibitor and may be a useful lead

VNT-101 is an orally active inhibitor of influenza A virus (IAV). It disrupts NP-NP protein interactions, preventing NP oligomerization and destabilizing the viral ribonucleoprotein (RNP) complex, showing potent antiviral activity against multiple influenza A virus subtypes. In cell-based cytopathic effect (CPE) assays, VNT-101 has an EC50 value of 4-5 nM, while it measures 4-8 nM in neuraminidase (NA) assays and 21-45 nM in ribonucleoprotein (RNP) assays. Demonstrating strong in vivo antiviral efficacy, VNT-101 protects against lethal H1N1 virus infection in mice. VNT-101 is applicable to influenza A virus infection research.

Olomoucine II is a potent cyclin-dependent kinase inhibitor with IC50 values of 7.6, 0.1, 19.8, 0.45, and 0.06 μM for CDK1, CDK2, CDK4, CDK7, and CDK9, respectively. Olomoucine II demonstrates high selectivity over numerous other kinases while retaining measurable activity against ERK2 and ABCB1, allowing it to modulate multidrug resistance pathways. Olomoucine II suppresses proliferation across cancer cell lines regardless of p53 status and exhibits synergistic action with daunorubicin in ABCB1-expressing HCT-8 cells.Olomoucine II additionally inhibits replication of HSV-1, HSV-2, vaccinia virus, adenovirus 4, and human CMV, making Olomoucine II an important antiviral and anticancer research tool.

16,16-dimethyl PGA2 is a metabolism-resistant analog of PGA2 with a prolonged in vivo half-life. It inhibits the proliferation of Sendai virus in cultured African green monkey kidney cells by >90% at a concentration of 4 μg/ml. Daily infusion of 10 μg of 16,16-dimethyl PGA2 methyl ester into mice infected with influenza A virus increased survival by 40%. Similar treatment of mice inoculated with erythroleukemia cells delayed tumor growth and increased survival time.

KBC-007 is a synthetic branched chain-containing analog of α-galactosylceramide (α-GalCer). It induces IL-4 and IFN-γ secretion by mouse splenocytes when used at a concentration of 0.5 ng/ml and IL-2 secretion by DN32.D3 NKT hybridoma cells co-cultured with CD1d-transfected RBL cells pre-loaded with KBC-007 at a concentration of 8 ng/ml. KBC-007 (1 μg per animal) increases levels of IL-4, but not IFN-γ, to a similar degree as α-GalCer in mouse serum. KBC-007 (0.5 μg per animal) increases the survival rate of mice immunized with the inactivated influenza A virus A/PR/8/34 in a model of influenza infection.

Defensin HNP-3 is a peptide secreted by human polymorphonuclear leukocytes (PMNs) that has antimicrobial properties. It induces lysis of mammalian cells when used at a concentration of 25 μg/mL. It also inhibits growth of E. faecalis (ED50 = 100 nM) and clinical isolates of P. aeruginosa (MIC90 = 4 μM). HNP-3 binds to recombinant HIV-1 envelope glycoprotein (gp120) and human CD4 (Kds = 52.8 and 34.9 nM, respectively). It also binds to recombinant, immobilized human surfactant protein D (SP-D; Kd = 55.7 nM) and inhibits focus formation in Madin-Darby canine kidney (MDCK) cells infected with influenza A virus (IAV).

Ribavirin-13C5is intended for use as an internal standard for the quantification of ribavirin by GC- or LC-MS. Ribavirin is an antiviral guanosine nucleoside analog.1,2Upon entry into cells, ribavirin is metabolized to an active triphosphate form that induces viral RNA chain termination and inhibits viral polymerases. It reduces replication in a panel of seven RNA and four DNA viruses in Vero cells (EC50s = 2-95 μg/ml).3Ribavirin also reduces replication of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Vero cells (EC50= 109.5 μM).4Aerosol administration of ribavirin (30 mg/kg) reduces mortality in a mouse model of influenza A infection.5Formulations containing ribavirin have been used in the treatment of respiratory syncytial virus (RSV), hepatitis C virus (HCV), and viral hemorrhagic fevers. 1.Gilbert, B.E., and Knight, V.Biochemistry and clinical applications of ribavirinAntimicrob. Agents Chemother.30(2)201-205(1986) 2.Gordon, C.J., Tchesnokov, E.P., Woolner, E., et al.Remdesivir is a direct-acting antiviral that inhibits RNA-dependent RNA polymerase from severe acute respiratory syndrome coronavirus 2 with high potencyJ. Biol. Chem.295(20)6785-6797(2020) 3.Kirsi, J.J., North, J.A., McKernan, P.A., et al.Broad-spectrum antiviral activity of 2-β-D-ribofuranosylselenazole-4-carboxamide, a new antiviral agentAntimicrob. Agents Chemother.24(3)353-361(1983) 4.Wang, M., Cao, R., Zhang, L., et al.Remdesivir and chloroquine effectively inhibit the recently emerged novel coronavirus (2019-nCoV) in vitroCell Res.30(3)269-271(2020) 5.Wilson, S.Z., Knight, V., Wyde, P.R., et al.Amantadine and ribavirin aerosol treatment of influenza A and B infection in miceAntimicrob. Agents Chemother.17(4)642-648(1980)

RSV-IN-4 (Compound 2) is a dual inhibitor of respiratory syncytial virus (RSV) and influenza virus A (IAV), demonstrating anti-RSV activity with an EC50 of 11.76 μM.

HSP90-IN-14 (compound 4) is an effective Hsp90 inhibitor (Kd=0.26 μM). In MDCK cells, HSP90-IN-14 demonstrated anti-influenza virus activity with EC50 values of 2.6 μM against influenza A/H3N2, 3.9 μM against A/H1N1, and 17 μM against the B virus.

RdRP-IN-4 (compound 11q) is an arylbenzohydrazide analogue, an orally active inhibitor of influenza A virus RNA-dependent RNA polymerase (RdRp) that directly binds the PB1 subunit of RdRp. RdRP-IN-4 inhibited H1N1 (A/PR/8/34) Flu A and Flu B strains (B/Lee/1940) in a dose-dependent manner with EC50 values of 53 nM and 20 nM, respectively. RdRP-IN-4 had a significant antiviral effect in infected mice.

Trimethoprim hydrochloride, a bacteriostatic antibiotic and dihydrofolate reductase inhibitor, demonstrates efficacy against a broad spectrum of Gram-positive and Gram-negative aerobic bacteria. It has research applications for urinary tract infections, Shigellosis, and Pneumocystis pneumonia. Additionally, when combined with zinc, it can inhibit the infection of Influenza A virus in chick embryos [1] [2] [3] [4].

Ribavirin-13C5 (Standard) is the standard form of Ribavirin-13C5, suitable for quantitative analysis, quality control, and related research in biochemical experiments. Ribavirin-13C5 is intended to be used as an internal standard for the quantification of ribavirin by GC- or LC-MS. Ribavirin is an antiviral guanosine nucleoside analog. 1,2 Once it enters cells, ribavirin is metabolized into an active triphosphate form that causes viral RNA chain termination and inhibits viral polymerases. It reduces replication in a panel of seven RNA and four DNA viruses in Vero cells (EC50s = 2-95 μg/ml). 3 Ribavirin also reduces replication of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Vero cells (EC50 = 109.5 μM). 4 Aerosol administration of ribavirin (30 mg/kg) reduces mortality in a mouse model of influenza A infection.5Formulations containing ribavirin have been used in the treatment of respiratory syncytial virus (RSV), hepatitis C virus (HCV), and viral hemorrhagic fevers.

Ginkgetin (Standard) is a reference standard for research and analysis in studies involving Ginkgetin. 1. Ginkgetin has anti-influenza virus and anti-fungal activities. 2. Ginkgetin has anti-inflammatory activity, can down-regulates COX-2 induction in vivo against skin inflammatory responses. 3. Ginkgetin is a good STAT3 inhibitor and may be a useful lead molecule for development of a therapeutic STAT3 inhibitor. 4. Ginkgetin induces apoptosis in PC-3 cells via activation of caspase 3 and inhibition of survival genes as a potent chemotherapeutic agent for prostate cancer treatment. 5. Ginkgetin has neuroprotective activity against neurological injury induced by MPTP occurs via regulating iron homeostasis, it may provide neuroprotective therapy for Parkinson's disease and iron metabolism disorder related diseases.

9-Methylstreptimidone (AntibioticTS 885; NSC 248958) is a microbial metabolite initially isolated from Streptomyces S-885, known for its antifungal and antiviral properties. It is effective against various fungi, such as S. sake, S. fragilis, R. rubra, T. rubra, and C. albidus, with a MIC of 4-20 μg/mL. Additionally, it shows in vitro antiviral activity against poliovirus, vesicular stomatitis virus (VSV), and Newcastle disease virus (NDV) with a MIC of 0.02 μg/mL. Administering 9-Methylstreptimidone before infection can increase survival rates in mouse models infected with influenza A2 (H2N2) or Candida albicans.