1
|
Dewi DNSS, Mertaniasih NM, Soedarsono, Ozeki Y, Artama WT, Fihiruddin, Niki M, Tateishi Y, Ato M, Matsumoto S. Characteristic profile of antibody responses to PPD, ESAT-6, and CFP-10 of Mycobacterium tuberculosis in pulmonary tuberculosis suspected cases in Surabaya, Indonesia. Braz J Infect Dis 2019; 23:246-253. [PMID: 31421107 PMCID: PMC9428029 DOI: 10.1016/j.bjid.2019.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/02/2019] [Accepted: 07/14/2019] [Indexed: 12/23/2022] Open
Abstract
Accurate and rapid diagnostic tools are important aspects of managing tuberculosis (TB) cases appropriately. However, the sensitivity and specificity of diagnostic kits based on immune response such as the tuberculin skin test (TST) and interferon gamma release assay (IGRA) are still debated. Thus, the exploration and assessment of specific biomarker-targeted antibodies are needed for the development of an accurate and rapid diagnostic tool. The present study was conducted in patients with a respiratory problem suspected to be TB at Dr. Soetomo Hospital, Surabaya, Indonesia. Among 102 patients tested by GeneXpert and AFB, 59 serum samples were from cases retrospectively determined to have active TB. A total of 102 serum of healthy controls (HC) was also collected. The PPD antigen and the recombinant CFP-10 and ESAT-6 proteins were prepared. Antibody responses against these proteins were evaluated by ELISA. All samples were also screened for the possibility of Mycobacterium avium-intracellulare complex (MAC) infection using Capilla MaC kit. The results showed that TB patients had a significantly higher concentration of IgG antibody in response to PPD than the HC. In addition, the receiver operating characteristic (ROC) curve analysis showed that PPD was acceptable for diagnostic purposes with an AUC value of 0.835 (95% CI 0.770-0.900, p < 0.0001). However, ESAT-6 and CFP-10 had low AUCs, and 32 samples from both groups showed a low concentration of IgA antibody against all antigens. The MAC detection results also showed that the concentration of IgA in the HC group was the highest. The current results indicate that PPD is a better antigen for antibody-based detection of TB than ESAT-6 and CFP-10. Based on the MAC detection assay, 53 people in the HC group were probably infected with rapidly growing nontuberculous mycobacteria (NTM), although antibody response to PPD was low.
Collapse
Affiliation(s)
| | - Ni Made Mertaniasih
- Universitas Airlangga, Faculty of Medicine, Department of Medical Microbiology, Surabaya, Indonesia; Universitas Airlangga, Institute of Tropical Disease, Laboratory of Tuberculosis, Surabaya, Indonesia.
| | - Soedarsono
- Universitas Airlangga, Faculty of Medicine, Department of Pulmonology and Respiratory Medicine, Surabaya, Indonesia.
| | - Yuriko Ozeki
- Niigata University, School of Medicine, Department of Bacteriology, Niigata, Japan.
| | - Wayan Tunas Artama
- Universitas Gadjah Mada, Faculty of Veterinary Medicine, Department of Biochemistry, Yogyakarta, Indonesia; Universitas Gadjah Mada, One Health/Eco-health Resource Center, Yogyakarta, Indonesia.
| | - Fihiruddin
- Universitas Gadjah Mada, Doctoral Program, Research Center of Biotechnology, Yogyakarta, Indonesia; Politeknik Kesehatan Mataram, Department of Medical Laboratory Technology, Mataram, Indonesia.
| | - Mamiko Niki
- Osaka City University Graduate School of Medicine, Department of Bacteriology, Osaka, Japan.
| | - Yoshitaka Tateishi
- Niigata University, School of Medicine, Department of Bacteriology, Niigata, Japan.
| | - Manabu Ato
- National Institute of Infectious Diseases, Department of Mycobacteriology, Leprosy Research Center, Tokyo, Japan.
| | - Sohkichi Matsumoto
- Niigata University, School of Medicine, Department of Bacteriology, Niigata, Japan; Universitas Airlangga, Faculty of Medicine, Department of Medical Microbiology, Surabaya, Indonesia.
| |
Collapse
|