IDENTIFICATION OF Mycobacterium tuberculosis - Journal | Unair

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Identification of Mycobacterium tuberculosis Adhesion Protein (Dwi Yuni Nur Hidayati, Khusnul Khotimah, Uun Yanuhar)

IDENTIFICATION OF Mycobacterium tuberculosis ADHESION PROTEIN IN SPUTUM OF TUBERCULOUS PATIENTS Dwi Yuni Nur Hidayati1, Khusnul Khotimah2, Uun Yanuhar3 1 Laboratory of Microbiology Faculty of Medicine, Brawijaya University 2 Laboratory of Pharmacology Faculty of Medicine, Brawijaya University 3 Laboratory of Marine Biotechnology, Faculty of Fisheries and Marine Sciences, Brawijaya University ABSTRAK Penyakit tuberkulosis paru merupakan penyakit endemis di Indonesia. Diagnosa tuberkulosis paru saat ini dapat ditegakkan dengan gambaran klinis dan dikonfirmasi dengan deteksi dan identifikasi Mycobacteria. Deteksi dan identifikasi Mycobacteria dengan metode kultur, pemeriksaan mikroskopis dan metode molekuler deteksi DNA atau RNA Mycobacteria. Pendekatan diagnosa tuberkulosis paru secara serologis menggunakan berbagai macam antigen. Adapun tujuan umum dari penelitian ini adalah untuk mengetahui deteksi Protein Pili pada s-IgA pada sputum penderita tuberculosis dengan pemeriksaan Imunoblotting sedangkan tujuan khusus dari penelitian ini adalah mengetahui berat molekul Protein Pili dan mengetahui sensitivitas dan spesifisitas Protein Pili dengan menggunakan metode Imunoblotting. Pada penelitian ini digunakan Pili Mycobacterium tuberculosis sebagai antigen dan s-IgA (secretory IgA) sebagai antibodi untuk diagnosa tuberkulosis paru. Pada penelitian ini dilakukan isolasi Pili dan menentukan berat molekulnya dengan elektroforesis SDS PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis). Hasil penelitian ini ditemukan Pili Mycobacterium tuberculosis yang merupakan molekul hemaglutinin dan didapatkan band (pita) berat molekul Pili sebesar 63,63 kDa yang direspon oleh s-IgA. Selanjutnya dilakukan uji pada 96 sampel sputum pasien yang tersedia yang dicurigai menderita tuberkulosis paru dengan metode immunoblotting dan dengan table Mc.Nemar hasilnya didapatkan sensitivitas 71,42% dan spesifisitas sebesar 63,93% pada cut-off (titik potong) 121,24.

ABSTRACT The pulmonary tuberculosis is an endemic disease in Indonesia. Pulmonary tuberculosis diagnosis at this moment confirmatory using clinical manifestation with detection and identification mycobacteria. Detection and identification of Mycobacteria with culture methode , examination microscopy and moleculer detection with DNA or RNA Mycobacteria. Pendekatan diagnosa tuberkulosis paru secara serologis menggunakan berbagai macam antigen. Diagnosis of phenomenological the pulmonary tuberculosis in a serologic manner using various antigen. The general purpose of this research is to find out the detection of Pili Protein at s-IgA in patient tuberculosis sputum with Immunoblotting examination whereas specific purpose of this research are to find out molecular weight of Pili Protein molecular and also to find out the sensitivity and spesificity of Pili Protein using Immunoblotting method. This research used Mycobacterium tuberculosis Pili as antigen and s-IgA (secretory IgA) as antibody to diagnose pulmonary tuberculosis. At this research the Pili was isolation and determine the molecular weight with electrophoresis SDS PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis). This research also detected that Mycobacterium tuberculosis Pili (MTP) is hemaglutinin molecule and acquire the band of molecular weight of Pili with value 63,63 kDa that response by s-IgA. Therefore, at this research also done the experiment to 96 sample of sputum patient which available that presumable the suffer of pulmonary tuberculosis with dot blot method and Mc Nemar table, the result are sensitivity 71,42% and spesificity with value 63,93% at the cut-off 121,24.

Keyword: adhesin, hemaglutinin, sIgA, Pili, M. tuberculosis Correspondence: Dwi Yuni Nur Hidayati, Laboratory of Microbiology Faculty of Medicine, Brawijaya University

remains a health problem in the world today (Gilbert 2003).

INTRODUCTION Tuberculosis is a disease caused by the bacterium Mycobacterium tuberculosis. Commonly infect the lungs, although it can also infect other organs. Other properties of bacteria are aerobic. These properties indicate that the germ is more like a network of high oxygen content. In this case the pressure of the lung apex is higher than in other parts, so that the apex is a place of predilection of tuberculosis. Tuberculosis

In Indonesia, tuberculosis is an endemic disease reemerged as the leading cause of death after heart disease and respiratory tract. The number of TB cases were found to increase significantly in recent years. Figures discovery of new smear positive cases increased from 38% in 2003 to 54% in 2004. The incidence of smear positive (infectious) in 2005 estimated 107 new 25

Folia Medica Indonesiana Vol. 47 No. 1 January - March 2011 : 25-29

An understanding of the mechanisms and bacterial factors responsible for the ability of M. tuberculosis in causing disease in humans is important for the development of increased treatment strategies. Many bacterial pathogens use pili as adherence factors for the colonized host. Found that M. tuberculosis produce something that is fine (width of 2 to 3 nm), fused, flexible pili that are recognized by IgG antibodycontaining serum obtained from patients with active tuberculosis, indicating that the bacteria produce pili or pili associated with antigen during human infection (Cristopher 2007).

cases/100.000 population (246 000 new cases each year) and prevalence of 597,000 cases in all cases. In Indonesia is estimated there are approximately 583 000 new pulmonary TB patients who appear every year and 140,000 of them died from the disease every year. In the province of Jakarta in 2003 the TB cure rate is still below the national target (
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IDENTIFICATION OF Mycobacterium tuberculosis - Journal | Unair

Identification of Mycobacterium tuberculosis Adhesion Protein (Dwi Yuni Nur Hidayati, Khusnul Khotimah, Uun Yanuhar) IDENTIFICATION OF Mycobacterium ...

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