ChemInform Abstract: Enhanced Inhibition of HIV-1 Replication in Macrophages by Antisense Oligonucleotides, Ribozymes and Acyclic Nucleoside Phosphonate Analogues Delivered in pH-Sensitive Liposomes

ChemInform ◽  
2010 ◽  
Vol 32 (47) ◽  
pp. no-no
Author(s):  
N. Duezguenes ◽  
S. Simoes ◽  
V. Slepushkin ◽  
E. Pretzer ◽  
J. J. Rossi ◽  
...  
Keyword(s):  
Antisense Oligonucleotides ◽  
Ph Sensitive ◽  
Acyclic Nucleoside ◽  
Acyclic Nucleoside Phosphonate ◽  
Hiv 1

Inhibitory Effects of Acyclic Nucleoside Phosphonate Analogues on Hepatitis B Virus DNA Synthesis in HB611 Cells

1994 ◽  
Vol 5 (2) ◽  
pp. 57-63 ◽  
Author(s):  
T. Yokota ◽  
K. Konno ◽  
S. Shigeta ◽  
A. Holy ◽  
J. Balzarini ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Dna Synthesis ◽  
Dna Polymerase ◽  
Hbv Dna ◽  
Inhibitory Effects ◽  
B Virus ◽  
Acyclic Nucleoside ◽  
Cellular Dna ◽  
Acyclic Nucleoside Phosphonate

By using an assay system based on a human hepatoblastoma cell line (HB611) that continuously synthesizes hepatitis B virus (HBV) DNA, 56 acyclic nucleoside phosphonate analogues were examined for their inhibitory effects on HBV DNA synthesis. The following compounds were found to inhibit HBV DNA synthesis at concentrations that were significantly lower than their minimum cytotoxic concentrations; 9-(2-phosphonylmethoxyethyl)adenine (PMEA), 9-(2-phosphonylmethoxyethyl) guanine(PMEG), 9-(2-phosphonylmethoxyethyl) guanine ethyl ester (PMEGEE), 9 - (2 - phosphonylmethoxyethyl) - 1 - deazaadenine (PMEC1A), 9-(2-phosphonylmethoxyethyl)-2,6-diaminopurine (PMEDAP), ( S)-9-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (HPMPA), 9-(3-isopropoxy-2-phosphonylmethoxypropyl)adenine (IPPMPA), 9-( RS)-(2-phosphonylmethoxypropyl)adenine (PMPA) and 9-(3-hydroxy-2-phosphonylmethoxypropyl)-2, 6-diaminopurine (HPMPDAP). The most selective compounds (with indexes greater than 100) were PMEDAP, PMEA, IPPMPA, and PMPA. Acyclic pyrimidine nucleoside phosphonate analogues did not prove markedly selective as anti-HBV agents. Diphosphoryl derivatives of some acyclic purine nucleoside phos-phonates (i.e. PMEA, PMEDAP, HPMPA) were prepared. They proved inhibitory to HBV DNA polymerase but not cellular DNA polymerase α.

Discovery of an Acyclic Nucleoside Phosphonate that InhibitsMycobacterium tuberculosisThyX Based on the Binding Mode of a 5-Alkynyl Substrate Analogue

ChemMedChem ◽  
2013 ◽  
Vol 8 (8) ◽  
pp. 1373-1383 ◽  
Author(s):  
Anastasia Parchina ◽  
Matheus Froeyen ◽  
Lia Margamuljana ◽  
Jef Rozenski ◽  
Steven De Jonghe ◽  
...  
Keyword(s):  
Binding Mode ◽  
Substrate Analogue ◽  
Acyclic Nucleoside ◽  
Acyclic Nucleoside Phosphonate

Delivery of antisense oligonucleotides by means of pH-sensitive liposomes

1997 ◽  
Vol 48 (2-3) ◽  
pp. 179-184 ◽  
Author(s):  
Monica Cristina De Oliveira ◽  
Elias Fattal ◽  
Catherine Ropert ◽  
Claude Malvy ◽  
Patrick Couvreur
Keyword(s):  
Antisense Oligonucleotides ◽  
Ph Sensitive

scholarly journals Inhibitory Effects of Novel Nucleoside and Nucleotide Analogues on Epstein—Barr Virus Replication

1998 ◽  
Vol 9 (3) ◽  
pp. 275-282 ◽  
Author(s):  
A Meerbach ◽  
A Holý ◽  
P Wutzler ◽  
E De Clercq ◽  
J Neyts
Keyword(s):  
Dna Hybridization ◽  
Epstein Barr Virus ◽  
Inhibitory Effects ◽  
Nucleotide Analogues ◽  
Barr Virus ◽  
Ebv Dna ◽  
Acyclic Nucleoside ◽  
Epstein Barr ◽  
New Compounds ◽  
Acyclic Nucleoside Phosphonate

The anti-Epstein–Barr virus (EBV) activity of different classes of compounds was assessed by means of an EBV DNA hybridization assay using a digoxigenin-labelled probe specific for the BamHI W fragment of the EBV genome, as well as by measuring viral capsid antigen (VCA) expression after a 7 day incubation period of P3HR-1 producer cells with the test substances. Acyclovir, ganciclovir, cidofovir and zidovudine were included as reference compounds. Several compounds proved to be potent and selective inhibitors of EBV DNA synthesis and VCA expression. Of the new compounds that were evaluated for their anti-EBV activity, the highest efficacy (lowest EC50) and highest selectivity index (SI) were shown by the purine nucleoside analogue 2-amino-7-[(1,3-dihydroxy-2-propoxy)methyl]purine (S2242) (EC50 0.6 ng/ml; SI 600), the acyclic nucleoside phosphonate analogues 9-(2-phosphonomethoxyethyl)-6-dimethylaminopurine (EC50 1.1 μg/ml; SI 91), 9-(2-phosphonomethoxyethyl)-2-amino-6-benzhydrylaminopurine (EC501.3 μg/ml; SI 29), 7-(2-phosphonomethoxyethyl)-6-dimethylaminopurine (EC50 0.8 μg/ml; SI 56), 9-( R)-(2-phosphonomethoxypropyl)-6-(2-dimethylaminoethyl)-aminopurine (EC50 0.5 μg/ml; SI 42), the 2′,3′-dideoxythymidine derivative 3′-oximino-2′,3′-dideoxythymidine (EC501.5 μg/ml; SI 65), and 1-(2,3-dideoxy-3- N-hydroxyamino-β-d-threo-pentafuran yl)pentafuranosyl)thymine (EC50 4.1 μg/ml; SI >24).

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