Comparative in vitro effects of AZT and extracts of Ocimum gratissimum, Ficus polita, Clausena anisata, Alchornea cordifolia, and Elaeophorbia drupifera against HIV-1 and HIV-2 infections.
Identifieur interne : 000707 ( PubMed/Checkpoint ); précédent : 000706; suivant : 000708Comparative in vitro effects of AZT and extracts of Ocimum gratissimum, Ficus polita, Clausena anisata, Alchornea cordifolia, and Elaeophorbia drupifera against HIV-1 and HIV-2 infections.
Auteurs : Nana K. Ayisi [Ghana] ; Caesar NyadedzorSource :
- Antiviral research [ 0166-3542 ] ; 2003.
Descripteurs français
- KwdFr :
- ADN viral (), ADN viral (génétique), Agents antiVIH (pharmacologie), Cellules cultivées, Euphorbiaceae (), Extraits de plantes (pharmacologie), Ficus (), Humains, Infections à VIH (traitement médicamenteux), Ocimum (), Plantes médicinales (), RNA-directed DNA polymerase (métabolisme), Rutaceae (), Réaction de polymérisation en chaîne, Réplication virale (), VIH-1 (Virus de l'Immunodéficience Humaine de type 1) (), VIH-1 (Virus de l'Immunodéficience Humaine de type 1) (physiologie), VIH-2 (Virus de l'Immunodéficience Humaine de type 2) (), VIH-2 (Virus de l'Immunodéficience Humaine de type 2) (physiologie), Zidovudine (pharmacologie).
- MESH :
- génétique : ADN viral.
- métabolisme : RNA-directed DNA polymerase.
- pharmacologie : Agents antiVIH, Extraits de plantes, Zidovudine.
- physiologie : VIH-1 (Virus de l'Immunodéficience Humaine de type 1), VIH-2 (Virus de l'Immunodéficience Humaine de type 2).
- traitement médicamenteux : Infections à VIH.
- ADN viral, Cellules cultivées, Euphorbiaceae, Ficus, Humains, Ocimum, Plantes médicinales, Rutaceae, Réaction de polymérisation en chaîne, Réplication virale, VIH-1 (Virus de l'Immunodéficience Humaine de type 1), VIH-2 (Virus de l'Immunodéficience Humaine de type 2).
English descriptors
- KwdEn :
- Anti-HIV Agents (pharmacology), Cells, Cultured, DNA, Viral (chemistry), DNA, Viral (genetics), Euphorbiaceae (chemistry), Ficus (chemistry), HIV Infections (drug therapy), HIV-1 (drug effects), HIV-1 (physiology), HIV-2 (drug effects), HIV-2 (physiology), Humans, Ocimum (chemistry), Plant Extracts (pharmacology), Plants, Medicinal (chemistry), Polymerase Chain Reaction, RNA-Directed DNA Polymerase (metabolism), Rutaceae (chemistry), Virus Replication (drug effects), Zidovudine (pharmacology).
- MESH :
- chemical , chemistry : DNA, Viral.
- chemical , genetics : DNA, Viral.
- chemical , metabolism : RNA-Directed DNA Polymerase.
- chemical , pharmacology : Anti-HIV Agents, Plant Extracts, Zidovudine.
- chemistry : Euphorbiaceae, Ficus, Ocimum, Plants, Medicinal, Rutaceae.
- drug effects : HIV-1, HIV-2, Virus Replication.
- drug therapy : HIV Infections.
- physiology : HIV-1, HIV-2.
- Cells, Cultured, Humans, Polymerase Chain Reaction.
Abstract
The effects of Ocimum gratissimum (GHX-2), Ficus polita (GHX-6), Clausena anisata (GHX-7), Alchornea cordifolia (GHX-26), Elaeophorbia drupifera (GHX-27), and AZT on in vitro HIV-1 and HIV-2 replication and cytopathicity were compared. All plant extracts inhibited HIV-1 strain HTLVIII(B) cytopathicity, the leaves of GHX-2 and the seeds of GHX-26 having high antiviral indices (110 and 90, respectively). Against HIV-2 strain GH1, the EC(50) values ranged from <0.005 to 0.075 mg/ml when treatment was started at 40min after virus adsorption, except for GHX-7 which showed only moderate activity and GHX-26 which had no activity. When treatment was delayed for 2h, the plant extracts, unlike AZT, were still very effective against HIV-2. Likewise, only the plant extracts were able to attain EC(90) values when high multiplicity of infection (MOI) with HIV-1 strain GH3 was used when treatment was delayed for 2h. In Molt-4 cocultures with Molt-4/HIV, early cytopathic effect (CPE) of cell fusion was unaffected by AZT but was completely inhibited by all plants at noncytotoxic concentrations. In addition, GHX-27 was selectively toxic to Molt-4/HIV cells. The plant extracts also inhibited HIV-1 reverse transcriptase (RT) activity at EC(50) values of <0.01-0.03 mg/ml. HIV-1 proviral DNA copying as determined in a polymerase chain reaction, was completely inhibited by GHX-2 and GHX-6 at 0.011 and 0.015 mg/ml, respectively. GHX-26 and GHX-27 showed only very moderate activity.
PubMed: 12719004
Affiliations:
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pubmed:12719004Le document en format XML
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<term>DNA, Viral (genetics)</term>
<term>Euphorbiaceae (chemistry)</term>
<term>Ficus (chemistry)</term>
<term>HIV Infections (drug therapy)</term>
<term>HIV-1 (drug effects)</term>
<term>HIV-1 (physiology)</term>
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<front><div type="abstract" xml:lang="en">The effects of Ocimum gratissimum (GHX-2), Ficus polita (GHX-6), Clausena anisata (GHX-7), Alchornea cordifolia (GHX-26), Elaeophorbia drupifera (GHX-27), and AZT on in vitro HIV-1 and HIV-2 replication and cytopathicity were compared. All plant extracts inhibited HIV-1 strain HTLVIII(B) cytopathicity, the leaves of GHX-2 and the seeds of GHX-26 having high antiviral indices (110 and 90, respectively). Against HIV-2 strain GH1, the EC(50) values ranged from <0.005 to 0.075 mg/ml when treatment was started at 40min after virus adsorption, except for GHX-7 which showed only moderate activity and GHX-26 which had no activity. When treatment was delayed for 2h, the plant extracts, unlike AZT, were still very effective against HIV-2. Likewise, only the plant extracts were able to attain EC(90) values when high multiplicity of infection (MOI) with HIV-1 strain GH3 was used when treatment was delayed for 2h. In Molt-4 cocultures with Molt-4/HIV, early cytopathic effect (CPE) of cell fusion was unaffected by AZT but was completely inhibited by all plants at noncytotoxic concentrations. In addition, GHX-27 was selectively toxic to Molt-4/HIV cells. The plant extracts also inhibited HIV-1 reverse transcriptase (RT) activity at EC(50) values of <0.01-0.03 mg/ml. HIV-1 proviral DNA copying as determined in a polymerase chain reaction, was completely inhibited by GHX-2 and GHX-6 at 0.011 and 0.015 mg/ml, respectively. GHX-26 and GHX-27 showed only very moderate activity.</div>
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<ArticleTitle>Comparative in vitro effects of AZT and extracts of Ocimum gratissimum, Ficus polita, Clausena anisata, Alchornea cordifolia, and Elaeophorbia drupifera against HIV-1 and HIV-2 infections.</ArticleTitle>
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<Abstract><AbstractText>The effects of Ocimum gratissimum (GHX-2), Ficus polita (GHX-6), Clausena anisata (GHX-7), Alchornea cordifolia (GHX-26), Elaeophorbia drupifera (GHX-27), and AZT on in vitro HIV-1 and HIV-2 replication and cytopathicity were compared. All plant extracts inhibited HIV-1 strain HTLVIII(B) cytopathicity, the leaves of GHX-2 and the seeds of GHX-26 having high antiviral indices (110 and 90, respectively). Against HIV-2 strain GH1, the EC(50) values ranged from <0.005 to 0.075 mg/ml when treatment was started at 40min after virus adsorption, except for GHX-7 which showed only moderate activity and GHX-26 which had no activity. When treatment was delayed for 2h, the plant extracts, unlike AZT, were still very effective against HIV-2. Likewise, only the plant extracts were able to attain EC(90) values when high multiplicity of infection (MOI) with HIV-1 strain GH3 was used when treatment was delayed for 2h. In Molt-4 cocultures with Molt-4/HIV, early cytopathic effect (CPE) of cell fusion was unaffected by AZT but was completely inhibited by all plants at noncytotoxic concentrations. In addition, GHX-27 was selectively toxic to Molt-4/HIV cells. The plant extracts also inhibited HIV-1 reverse transcriptase (RT) activity at EC(50) values of <0.01-0.03 mg/ml. HIV-1 proviral DNA copying as determined in a polymerase chain reaction, was completely inhibited by GHX-2 and GHX-6 at 0.011 and 0.015 mg/ml, respectively. GHX-26 and GHX-27 showed only very moderate activity.</AbstractText>
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<ForeName>Nana K</ForeName>
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<AffiliationInfo><Affiliation>Virology Unit, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG581, Legon, Ghana.</Affiliation>
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