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Use of specific rRNA oligonucleotide pro ... ium complex organisms in tissue
Use of specific rRNA oligonucleotide probes for microscopic detection of Mycobacterium avium complex organisms in tissue.
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Members of the Mycobacterium avium complex (MAC) are important environmental pathogens that are implicated in several chronic, idiopathic diseases. Diagnosis of MAC-based diseases is compromised by the need to cultivate these fastidious and slowly growing organisms in order to identify which mycobacterial species are present. Detection is particularly difficult when MAC is intracellular or embedded within mammalian tissues. We report on the development of culture-independent, in situ hybridization (ISH) assays for the detection of MAC in culture, sputum, and tissue. This assay includes a highly reliable technique for the permeabilization of mycobacterial cells within culture and tissues. We describe a set of rRNA-based oligonucleotide probes that specifically detect either M. intracellulare, the two M. avium subspecies associated with human disease, or all members of MAC. The results call into question the validity of ISH results derived by the use of other gene loci, such as IS900.
St Amand AL, Frank DN, De Groote MA, Pace NR
Journal of clinical microbiology
2005-04-01 00:00
43
4
1505-14
Animals,Bacterial Typing Techniques,Cattle,DNA Transposable Elements,Humans,In Situ Hybridization,Mycobacterium avium Complex,Mycobacterium avium-intracellulare Infection,Oligonucleotide Probes,Organ Specificity,RNA, Ribosomal,RNA, Ribosomal, 16S,RNA, Ribosomal, 23S,DNA Transposable Elements,Oligonucleotide Probes,RNA, Ribosomal,RNA, Ribosomal, 16S,RNA, Ribosomal, 23S
Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309-0347, USA
J. Clin. Microbiol.
0095-1137
10.1128/JCM.43.4.1505-1514.2005
43/4/1505
996
True
15814959
