Reference : Transmitted drug resistance, selection of resistance mutations and moderate antiretrovir...
Scientific journals : Article
Human health sciences : Immunology & infectious disease
http://hdl.handle.net/2268/7256
Transmitted drug resistance, selection of resistance mutations and moderate antiretroviral efficacy in HIV-2: analysis of the HIV-2 Belgium and Luxembourg database.
English
Ruelle, jean [ > > ]
Roman, francois [ > > ]
Vandenbroucke, Anne-Thérèse [ > > ]
Lambert, Christine [ > > ]
Fransen, Katrien [ > > ]
Echahidi, Fedoua [ > > ]
Piérard, Denis mailto [Université de Liège - ULg > Département de philosophie > Philosophie morale et politique >]
Verhofstede, Chris [ > > ]
Van Laethem, Christel [ > > ]
Delforge, Marie-Luce [ > > ]
Vaira, Dolorès mailto [Centre Hospitalier Universitaire de Liège - CHU > > Hématologie biologique et immuno hématologie >]
Schmitz, Jean-Claude [ > > ]
Goubau, Patrick [ > > ]
2008
BMC Infectious Diseases
BioMed Central
8
21
Yes (verified by ORBi)
International
1471-2334
England
[en] Adult ; Africa, Western/ethnology ; Aged ; Anti-Retroviral Agents/pharmacology/therapeutic use ; Belgium/epidemiology ; CD4 Lymphocyte Count ; Cohort Studies ; Drug Resistance, Multiple, Viral/drug effects/genetics ; Female ; Genotype ; HIV Infections/drug therapy/ethnology/virology ; HIV Protease/genetics ; HIV Reverse Transcriptase/genetics ; HIV-2/classification/drug effects/genetics ; Humans ; Luxembourg/epidemiology ; Male ; Middle Aged ; Molecular Sequence Data ; Mutation/drug effects/genetics ; Polymerase Chain Reaction ; RNA, Viral/chemistry ; Registries ; Viral Load
[en] BACKGROUND: Guidelines established for the treatment of HIV-1 infection and genotype interpretation do not apply for HIV-2. Data about antiretroviral (ARV) drug efficacy and resistance mutations is scarce. METHODS: Clinical data about HIV-2 infected patients in Belgium and Luxembourg were collected and the effect of ARV therapy on plasma viral load and CD4 counts were analysed. Viral RNA encoding for protease (PR) and reverse transcriptase (RT) from ARV-naive and treated patients were sequenced. RESULTS: Sixty-five HIV-2 infected patients were included in this cohort. Twenty patients were treated with 25 different ARV combinations in a total of 34 regimens and six months after the start of ARV therapy, only one third achieved viral load suppression. All of these successful regimens bar one contained protease inhibitors (PIs). Mean CD4 gains in the group of viral load suppressors and the group of patients treated with PI-containing regimens were respectively significantly higher than in the group of non-suppressors and the group of PI-sparing regimens. The most frequent mutations selected under therapy (compared to HIV-2 ROD) were V71I, L90M and I89V within PR. Within RT, they were M184V, Q151M, V111I and K65R. All of these mutations, except K65R and M184V, were also found in variable proportions in ARV-naive patients. CONCLUSION: Despite a high rate of ARV treatment failure, better virological and immunological results were achieved with PI-containing regimens. The analysis of polymorphic positions and HIV-2 specific mutations selected during therapy showed for the first time that transmission of drug resistant viruses has occurred in Belgium and Luxembourg. The high heterogeneity in ARV combinations reflects a lack of guidelines for the treatment of HIV-2 infection.
http://hdl.handle.net/2268/7256
10.1186/1471-2334-8-21

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
vaira transmitted PDF 2008.txt.pdfPublisher postprint347.87 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.