Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0021051 (immunodeficiency)
 71,517 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A series of 1-aryl-1H,3H-thiazolo[3,4-a]benzimidazoles were synthesized by one-pot reaction from o-phenylenediamine, 2-mercaptoacetic acid and a variety of aromatic aldehydes. All compounds obtained were evaluated for antiviral activity against human immunodeficiency virus (HIV). Compounds 4g, 4i, 4j, 4l and 4q exhibit reproducible in vitro anti-HIV activity.
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PMID:Anti-HIV agents. I: Synthesis and in vitro anti-HIV evaluation of novel 1H,3H-thiazolo[3,4-a]benzimidazoles. 168 21

A series of 1-aryl-1H,3H-thiazolo[3,4-a]benzimidazoles was synthesized starting from o-phenylenediamine, disubstituted aromatic aldehydes and 2-mercaptoacetic acid. Their antiviral activity against human immunodeficiency virus (HIV) was explored: the 1-(2',6'-dichlorophenyl) (4c), 1-(2',6'-difluorophenyl) (4i), 1-(2'-chloro,6'-fluorophenyl) (4K) and 1-(2'-chloro,5'-nitrophenyl) (4m) derivatives significantly inhibit in vitro the viral cytopathic effect in HIV-infected CEM cells. Compound 4i was selected by NCI's Review Committee for initial preclinical development studies.
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PMID:Anti-HIV agents II. Synthesis and in vitro anti-HIV activity of novel 1H,3H-thiazolo[3,4-a]benzimidazoles. 168 51

Visna virus is a lentivirus which causes a slow progressive disease involving the immune system and the central nervous system. To determine the role of the viral long terminal repeat (LTR) in targeting the virus to specific host cells and tissues, transgenic mice were constructed which contained the visna virus LTR directing expression of the bacterial gene encoding chloramphenicol acetyltransferase (CAT). Analysis of the transgenic mouse tissues for CAT activity revealed that the viral LTR was responsible, in part, for the tropism of visna virus for macrophages and the central nervous system. Expression of the LTR required the macrophage to be in an activated state both in vivo and in vitro. Thioglycolate activation of peritoneal macrophages in vivo and 12-O-tetradecanoylphorbol 13-acetate treatment in vitro induced expression of the visna virus LTR. Lymphocytes from the spleens of the transgenic mice expressed CAT activity, suggesting that visna virus was able to replicate in lymphocytes, as did human immunodeficiency virus and simian immunodeficiency virus. These studies demonstrated that the lentivirus LTR was responsible, in part, for cell and tissue tropism in vivo.
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PMID:The visna virus long terminal repeat directs expression of a reporter gene in activated macrophages, lymphocytes, and the central nervous systems of transgenic mice. 253 92

New esters (2b and 2c) and hydrazides (3b and 3c) were synthesized from 6-methyl/fluoro-3-phenyl-4(1H, 3H)-quinazolinone-2-thiones (1b and 1c). Subsequent treatment of 3-phenyl-4(3H)-quinazolinone-2-yl)mercaptoacetic acid hydrazides (3a-e) with 1H-indole-2,3-diones (4a-e) furnished the corresponding 3-[[(3-phenyl-4(3H)-quinazolinone-2-yl)mercaptoacetyl]hydrazono]-1H-2-indolinones (5a-u). The structures of new compounds were determined by analytical and spectral (IR, 1H-NMR, (13)C-NMR, EIMS) methods. Previously reported 3-[[(3-phenyl-4(3H)-quinazolinone-2-yl)mercaptoacetyl]hydrazono]-5-bromo-1H-2-indolinone 5v and compounds 5b, 5d and 5o chosen as prototypes were evaluated against the full panel of 60 human tumour cell lines at a minimum of five concentrations at tenfold dilutions in the National Cancer Institute in vitro primary cytotoxicity assay. Sulforhodamine B protein assay was used to estimate cell stability or growth. 3-[[(6-Chloro-3-phenyl-4(3H)-quinazolinone-2-yl)mercaptoacetyl]hydrazono]-5-fluoro-1H-2-indolinone 5o showed the most favourable cytotoxicity against a renal cancer cell line UO-31 (log(10)GI(50) value -6.68). Compound 5v was also tested against human immunodeficiency virus 1 (HIV-1). Compound 5v was confirmed moderately active against HIV-1.
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PMID:Synthesis and primary cytotoxicity evaluation of 3-[[(3-phenyl-4(3H)-quinazolinone-2-yl)mercaptoacetyl]hydrazono]-1H-2-indolinones. 1283 36

A diversity of novel 2-aryl-3-heteroaryl-2-ylmethyl-1,3-thiazolidin-4-ones were designed and synthesized by reacting heteroaryl-2-ylmethyl amine with various 2,6-dihalosubstituted benzaldehydes and mercaptoacetic acid. The title compounds were evaluated for human immunodeficiency virus type-1 (HIV-1) reverse transcriptase (RT) inhibitory activity. The results of in vitro assays showed that some of the compounds were effective inhibitors of HIV-1 reverse transcriptase enzyme at micromolar concentrations with less cytotoxicity in both MT-4 cells as well as acutely infected human T-lymphoid CEM cells. Compounds 4h and 4k emerged as moderately more potent with EC(50) are at 0.20 and 0.21 microM as compared to reference parent compound thiazolobenzimidazoles EC(50) 0.35 microM in MT-4 cells.
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PMID:2-(2,6-Dihalo-phenyl)-3-heteroaryl-2-ylmethyl-1, 3-thiazolidin-4-ones: anti-HIV agents. 1862 10