Evaluation Study of xMAP TIER Assay on a Microsphere-Based Platform for Detecting First-Line Anti-Tuberculosis Drug Resistance

Early diagnosis of drug susceptibility for tuberculosis (TB) patients could guide the timely initiation of effective treatment. We evaluated a novel multiplex xMAP TIER (Tuberculosis-Isoniazid-Ethambutol-Rifampicin) assay based on the Luminex xMAP system to detect first-line anti-tuberculous drug resistance. Deoxyribonucleic acid samples from 353 Mycobacterium tuberculosis clinical isolates were amplified by multiplex polymerase chain reaction, followed by hybridization and analysis through the xMAP system. Compared with the broth microdilution method, the sensitivity and specificity of the xMAP TIER assay for detecting resistance was 94.9% (95%CI, 90.0-99.8%) and 98.9% (95%CI, 97.7-100.0%) for rifampicin; 89.1% (95%CI, 83.9-94.3%) and 100.0% (95%CI, 100.0-100.0%) for isoniazid; 82.1% (95% CI, 68.0-96.3%) and 99.7% (95% CI, 99.0-100.0%) for ethambutol. With DNA sequencing as the reference standard, the sensitivity and specificity of xMAP TIER for detecting resistance were 95.0% (95% CI, 90.2-99.8%) and 99.6% (95% CI, 98.9-100.0%) for rifampicin; 96.9% (95% CI, 93.8-99.9%) and 100.0% (95% CI, 100.0-100.0%) for isoniazid; 86.1% (95% CI, 74.8-97.4%) and 100.0% (95% CI, 100.0-100.0%) for ethambutol. The results achieved showed that the xMAP TIER assay had good performance for detecting first-line anti-tuberculosis drug resistance, and it has the potential to diagnose drug-resistant tuberculosis more accurately due to the addition of more optimal design primers and probes on open architecture xMAP system.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:19

Enthalten in:

International journal of environmental research and public health - 19(2022), 24 vom: 19. Dez.

Sprache:

Englisch

Beteiligte Personen:

Ou, Xichao [VerfasserIn]
Zhang, Zhiguo [VerfasserIn]
Zhao, Bing [VerfasserIn]
Song, Zexuan [VerfasserIn]
Wang, Shengfen [VerfasserIn]
He, Wencong [VerfasserIn]
Pei, Shaojun [VerfasserIn]
Liu, Dongxin [VerfasserIn]
Xing, Ruida [VerfasserIn]
Xia, Hui [VerfasserIn]
Zhao, Yanlin [VerfasserIn]

Links:

Volltext

Themen:

8G167061QZ
Antitubercular Agents
Diagnosis
Drug resistance
Ethambutol
Isoniazid
Journal Article
Mycobacteirum tuberculosis
Research Support, Non-U.S. Gov't
Rifampin
V83O1VOZ8L
VJT6J7R4TR
XMAP

Anmerkungen:

Date Completed 26.12.2022

Date Revised 19.01.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijerph192417068

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM350664749