Journals / Mikrobiyoloji Bülteni / 2007 / Cilt: 41 - Sayı: 3

Genotyping of rifampin-resistant Mycobacterium tuberculosis isolates by mycobacterial interspersed repetitive ünit-variable number tandem repeat ( MIRU-VNTR) analysis

Rifampisine dirençli Mycobacterium tuberculosis izolatlarının MIRU-VNTR (mycobacterial interspersed repetitive ünit-variable number tandem repeat) yöntemiyle genotiplendirilmesi

Pages
385–393
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results showed that in most isolates the clustering on the basis of \S6110 RFLP typing and that on the basis of MIRU-VNTR typing were in agreement.

📌 3 Key Takeaways

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Objective & Hypothesis:Molecular typing methods have greatly enhanced our understanding on epidemiology of tuberculosis and allowed us to identify outbreaks and intertransmission within populations.
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Key Findings & Data:Recently, a set of 12 variable-number tandem repeat (VNTR), designated mycobacterial interspersed repetitive units (MIRU), has been described as being" useful for the typing of M.tuberculosis.
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Conclusion & Impact:The results showed that in most isolates the clustering on the basis of \S6110 RFLP typing and that on the basis of MIRU-VNTR typing were in agreement.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Genotip · İlaç direnci · bakteriyel

Abstract

Molecular typing methods have greatly enhanced our understanding on epidemiology of tuberculosis and allowed us to identify outbreaks and intertransmission within populations. Recently, a set of 12 variable-number tandem repeat (VNTR), designated mycobacterial interspersed repetitive units (MIRU), has been described as being" useful for the typing of M.tuberculosis. In this study, 26 rifampin (RIF) resistant M.tuberculosis isolates with known IS6110-RFLP patterns obtained from 26 different patients in Aegean Region were typed by MIRU-VNTR and the data were compared with IS6110-RFLP results. The results showed that in most isolates the clustering on the basis of \S6110 RFLP typing and that on the basis of MIRU-VNTR typing were in agreement. It was also determined that the loci including MIRU 16, MIRU 40, MIRU 26, MIRU 10, MIRU 04 and MIRU 31, respectively, have the highestallelic diversities and discriminatory power. In conclusion, since the discrimination level of conventional MIRU-VNTR including 12 loci might be variable, by the use of additional loci which present high degree of allelic differentiation, this method would be reliable for the epidemiologic studies.

Özet

Moleküler tiplendirme yöntemlerindeki gelişmeler, tüberküloz epidemiyolojisinin anlaşılmasını kolaylaştırmış, salgınların tanımlanmasına ve hastalığın toplum içinde yayılımının anlaşılmasına yardımcı olmuştur. Son yıllarda, "Mycobacterial interspersed repetitive unit" (MIRU) olarak tanımlanan 12 VNTR (variable-number tandem repeat) lokusunun M.tuberculosis'm tiplendirmesinde yararlı olduğu gösterilmiştir. Bu çalışmada Ege Bölgesi'nde 26 farklı hastadan izole edilen ve IS6110-RFLP paternleri bilinen 26 rifampisine (RİF) dirençli M.tuberculosis izolatı MIRU-VNTR yöntemiyle tiplendirilmiş, elde edilen sonuçlar IS6110-RFLP sonuçları ile karşılaştırmıştır. Çalışmada, izolatların çoğunda MIRU-VNTR yöntemiyle oluşan kümelerin IS617 0-RFLP yöntemiyle oluşan kümelerle uyumlu olduğu saptanmış ve sırasıyla MIRU 16, MIRU 40, MIRU 26, MIRU 10, MIRU 04 ve MIRU 31'in atletik farklılığı ve ayrım gücü en yüksek lokuslar olduğu belirlenmiştir. Sonuç olarak, klasik 12 MIRU-VNTR lokusunun allelik farklılıkları dolayısıyla ayrım güçleri arasında değişiklikler olduğu ve ayrım gücü yüksek olarak bulunan yukarıdaki lokuslara ek olarak allelik farklılığı yüksek diğer bazı lokusların da kullanılmasıyla, bu yöntemin epidemiyolojik çalışmalarda uygulanabilir bir yöntem olabileceği düşüncesine varılmıştır.

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Cite This Article

ÇAVUŞOĞLU, C., KARATAŞ, E., SÖYLER, İ. (2007). Genotyping of rifampin-resistant Mycobacterium tuberculosis isolates by mycobacterial interspersed repetitive ünit-variable number tandem repeat ( MIRU-VNTR) analysis. Mikrobiyoloji Bülteni, Cilt: 41 - Sayı: 3, 385–393. https://ajindex.com/articles/299389

References (12)

  1. Alland D, Kalkut GE, Moss AR, et al. Transmission of tuberculosis in New York City. An analysis by DNA fingerprinting and conventional epidemiologic methods. N Engl J Med 1994
  2. Benjamin WH Jr, Lok KH, Harris R, et al. Identification of a contaminating Mycobacterium tuberculosis strain with a transposition of an IS6110 insertion element resulting in an altered spoligotype. J Clin Microbiol 2001
  3. van Soolingen D. Molecular epidemiology of tuberculosis and other mycobacterial infections: main methodologies and achievements. J Intern Med 2001
  4. Goyal M, Saunders NA, van Embden JDA, Young DB, Shaw RJ. Differentiation of Mycobacterium tuberculosis isolates by spoligotyping and IS6110 restriction fragment length polymorphism J Clin Microbiol 1997
  5. Kamerbeek J, Schouls L, Kolk A, et al. Simultaneous detection and strain differentiation of Mycobacterium tuberculosis for diagnosis and epidemiology. J Clin Microbiol 1997
  6. Goguet de la Salmoniepe Y, Li HM, Torrea G, Bunschoten A, Van Embden J, Gicquel B. Evaluation of spoligotyping in a study of the transmission of Mycobacterium tuberculosis. J Clin Microbiol 1997
  7. Barlow REL, Gascoyne-Binzi DM, Gillespie SH, Dickens A, Qamer S, Hawkey PM. Comparison of variable number tandem repeat and IS6770-restriction fragment length polymorphism analyses for discrimination of high- and low-copy-number IS6110 Mycobacterium tuberculosis isolates. J Clin Microbiol 2001
  8. Filliol I, Ferdinand S, Negroni L, Sola C, Rastogi N. Molecular typing of Mycobacterium tuberculosis based on variable number of tandem DNA repeats used alone and in association with spoligotyping. J Clin Microbiol 2000
  9. Gopaul KK, Brown TJ, Gibson AL, Yates MD, Drobniewski FA. Progression toward an improved DNA amplification-based typing technique in the study of Mycobacterium tuberculosis epidemiology. J Clin Microbiol 2006
  10. Cavusoglu C, Hilmioglu S, Güneri S, Bilgiç A. Characterization of rpoB mutations in rifampin- resistant clinical isolates of Mycobacterium tuberculosis from Turkey by DNA sequencing and line probe assay. J Clin Microbiol 2002
  11. Cavusoglu C, Durmaz R, Bilgiç A, Gunal S: Genotyping of rifampin-resistant Mycobacterium tuberculosis isolates from western Turkey. Ann Saudi Med 2004
  12. Cavusoglu C, Turhan A, Akinci P, Söyler I. Evaluation of the genotype MTBDR assay for rapid detection of r