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Mol Cell Probes. 1991 Feb;5(1):11-20.

Strand-specific detection of enteroviral RNA in myocardial tissue by in situ hybridization.

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Max-Planck-Institut für Biochemie, Martinsried, Federal Republic of Germany.


In this report we describe the development and application of single-stranded RNA probes for strand-specific detection of enterovirus RNA in infected heart tissue by in situ hybridization. For synthesis of RNA probes a full-length reverse-transcribed, recombinant CVB3 cDNA was inserted into the transcription vector pSPT18. Run-off transcripts of plus-strand and minus-strand orientation were produced using either T7 or SP6 RNA polymerase. Binding specificity and sensitivity of the radioactively labelled RNA probes were determined by slot-blot hybridization. Due to the high degree of genetic identity among enteroviruses, the in vitro transcribed CVB3 RNA probes hybridized with various enterovirus serotypes, including group A and B coxsackieviruses and echoviruses, which are commonly implicated in human viral heart disease. Strand-specific in situ hybridization led to detection of viral plus-strand or minus-strand RNA in infected cell cultures and in myocardial tissue sections of infected mice. In consecutive sections either viral genomic plus-strand RNA or complementary minus-strand RNA were localized in the same infected myocardial cells. In situ hybridization with enterovirus-specific and highly sensitive single-stranded RNA probes is of particular interest for the diagnosis of myocardial infections and for studies concerning viral RNA replication.

[Indexed for MEDLINE]

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