Article (Scientific journals)
Performance characteristics of Allele-Specific PCR (ASPCR) in detecting drug resistance mutations among non-B HIV-1 Variants.
Adawaye, Chatté; Fokam, Joseph; Kamangu, Erick Ntambwe et al.
2024In Journal of Virological Methods, 323, p. 114856
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Keywords :
Allele-specific PCR; Chad; Drug resistance; HIV-1; Subtypes; Anti-HIV Agents; Humans; Alleles; Reproducibility of Results; Mutation; Polymerase Chain Reaction/methods; Drug Resistance, Viral/genetics; HIV-1/genetics; HIV Infections/diagnosis; HIV Infections/drug therapy; Anti-HIV Agents/pharmacology; Anti-HIV Agents/therapeutic use; Drug Resistance, Viral; HIV Infections; Polymerase Chain Reaction; Virology
Abstract :
[en] Allele-Specific Polymerase Chain Reaction (ASPCR) is an affordable point-mutation assay whose validation could improve the detection of HIV-1 drug resistance mutations (DRMs) in resource-limited settings (RLS). We assessed the performance of ASPCR onforty-four non-B HIV-1 plasma samples from patients who were ARV treated in failure in N'Djamena-Chad. Viral RNA was reverse-transcribed and amplified using LightCycler® FastStart DNA MasterPLUS SYBR Green I. Detection of six major DRMs (K70R, K103N, Y181C, M184V, T215F, T215Y) was evaluated on Roche LightCycler®480 automated system (with dilutions 0.01-100%). ASPCR-results were compared to Sanger-sequencing (gold-standard). Correlations of mutation curves were excellent (R2 >0.97); all DRMs were detected with desirable mutant/wild-type threshold differences (ΔCt≥9) except K70R(ΔCtK70R=6; ΔCtK103N=13; ΔCtM184V=9; ΔCtT215F=12; ΔCtT215Y=12; ΔCtY181C=9) and positive controls were below required thresholds. Also, ASPCR reproducibility on DRMs was assessed by using dilutions of intra-assay and inter-assay coefficient of variations respectively with a threshold of less than 50(i.e.<0.50 variation) which are;: K70R (0.02-0.28 vs. 0.12-0.37), K103N (0.08-0.42 vs. 0.12-0.37), Y181C (0.12-0.39 vs. 0.31-0.37), M184V (0.13-0.39 vs. 0.23-0.42), T215F (0.05-0.43 vs. 0.04-0.45) and T215Y (0.13-0.41 vs. 0.19-0.41). DRM detection-rate by ASPCR vs Sanger was respectively: M184V (63.6% vs. 38.6%); T215F (18.1% vs. 9.1%); T215Y (6.8% vs. 2.3%); K70R (4.5% vs. 2.3%). K103N (22.7% vs. 13.6%); Y181C (13.6% vs. 11.4%). Correlations of mutation curves were excellent (R2 >0.97); all DRMs were detected with desirable mutant/wild-type threshold differences (ΔCt≥9) except K70R(ΔCtK70R=6; ΔCtK103N=13; ΔCtM184V=9; ΔCtT215F=12; ΔCtT215Y=12; ΔCtY181C=9) and positive controls were below required thresholds. Also, ASPCR reproducibility on DRMs was assessed by using dilutions of intra-assay and inter-assay coefficient of variations respectively with a threshold of less than 50(i.e.<0.50 variation) which are;: K70R (0.02-0.28 vs. 0.12-0.37), K103N (0.08-0.42 vs. 0.12-0.37), Y181C (0.12-0.39 vs. 0.31-0.37), M184V (0.13-0.39 vs. 0.23-0.42), T215F (0.05-0.43 vs. 0.04-0.45) and T215Y (0.13-0.41 vs. 0.19-0.41). DRM detection-rate by ASPCR vs Sanger was respectively: M184V (63.6% vs. 38.6%); T215F (18.1% vs. 9.1%); T215Y (6.8% vs. 2.3%); K70R (4.5% vs. 2.3%). K103N (22.7% vs. 13.6%); Y181C (13.6% vs. 11.4%). ASPCR appears more efficient for detecting DRMs on diverse HIV-1 non-B circulating in RLS like Chad.
Disciplines :
Immunology & infectious disease
Author, co-author :
Adawaye, Chatté;  National Institute of Sciences and Techniques of Abeche (INSTA), Abeche, Chad, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium. Electronic address: cadawaye@yahoo.fr
Fokam, Joseph;  Virology Laboratory, Chantal BIYA International Reference Centre for research on HIV/AIDS prevention and management, Yaoundé, Cameroon, Department of Medical Laboratory Sciences, Faculty of Health Sciences, University of Buea, Cameroon, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaounde, Cameroon, National HIV Drug Resistance Surveillance and Prevention Working Group (HIVDRWG), Ministry of Public Health, Yaounde, Cameroon. Electronic address: josephfokam@gmail.com
Kamangu, Erick Ntambwe;  Department of Basic Sciences, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
Ngwese, Derrick Tambe Ayuk;  Virology Laboratory, Chantal BIYA International Reference Centre for research on HIV/AIDS prevention and management, Yaoundé, Cameroon, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaounde, Cameroon, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
SUSIN, Fabrice ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de microbiologie clinique
Moussa, Ali Mahamat;  AIDS Reference Laboratory of Liege, CHU de Liege, Liege, Belgium, Faculty of Human Health Sciences, University of N'Djamena, N'Djamena, Chad, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
Hig-Zounet, BertinTchombou;  AIDS Reference Laboratory of Liege, CHU de Liege, Liege, Belgium, Faculty of Human Health Sciences, University of N'Djamena, N'Djamena, Chad, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
Mad-Toingué, Joseph;  AIDS Reference Laboratory of Liege, CHU de Liege, Liege, Belgium, Faculty of Human Health Sciences, University of N'Djamena, N'Djamena, Chad, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
Tidjani, Abdelsalam;  AIDS Reference Laboratory of Liege, CHU de Liege, Liege, Belgium, Infectious Diseases and Internal Medicine Service, University Hospital Center of Liège, Liège, Belgium
VAIRA, Dolorès ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de microbiologie clinique
Moutschen, Michel  ;  Université de Liège - ULiège > GIGA > GIGA I3 - Immunology & Infectious Diseases
Language :
English
Title :
Performance characteristics of Allele-Specific PCR (ASPCR) in detecting drug resistance mutations among non-B HIV-1 Variants.
Publication date :
2024
Journal title :
Journal of Virological Methods
ISSN :
0166-0934
eISSN :
1879-0984
Publisher :
Elsevier B.V., Netherlands
Volume :
323
Pages :
114856
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This study was made possible by the CONFOFOR grant from the Government of Chad .
Available on ORBi :
since 24 July 2024

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