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M94A0028.TXT
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1994-10-01
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Document 0028
DOCN M94A0028
TI [Riboprobes: an alternative in the detection of viral sequences]
DT 9412
AU Gutierrez-Escolano AL; Castro-Rodriguez EM; Nunez-de Caceres RM;
Soler-Claudin C; Fernandez-Tomas C; Laboratorio del Departamento de
Patologia Experimental, Centro; de Investigacion y de Estudios
Avanzados, Instituto Politecnico; Nacional (CINVESTAV-IPN), Mexico.
SO Salud Publica Mex. 1994 Mar-Apr;36(2):140-7. Unique Identifier :
AIDSLINE MED/94353286
AB The use of riboprobes for the detection of RNA viral sequences is
analyzed. Subgenomic fragments of cDNA from poliovirus type 2, dengue
virus type 4 and human immunodeficiency virus type 1, were inserted
downstream SP6 and/or T7 promoters in the transcription vectors pGEM-4z
or pSP64. RNAs obtained by in vitro transcription in the presence of UTP
infinity (32P) were used as probes for the detection of RNA viral
sequences from infected cell lines in slot and Northern blot assays. The
poliovirus riboprobe (P2-221) was able to detect specific viral
sequences; thus, it could be used for the detection of the virus in
serum, as well as in residual waters. The human immunodeficiency virus
riboprobe (HIV-378), detected viral sequences poly A+RNA from infected
cells; thus it can be used as a confirmatory test or as a tool in basic
research. Finally, the dengue virus riboprobes (D4-2819 and D4-1134)
detected specifically dengue 4 virus; however the sensitivity of the
detection could be significantly improved amplifying viral sequences by
the polymerase chain reaction (PCR) prior to probe hybridization.
DE Blotting, Northern Cells, Cultured Dengue/DIAGNOSIS Dengue
Virus/*GENETICS English Abstract Human HIV Infections/DIAGNOSIS
HIV-1/*GENETICS Nucleic Acid Hybridization Plasmids/GENETICS
Poliomyelitis/DIAGNOSIS Polioviruses, Human 1-3/*GENETICS *RNA
Probes/BIOSYNTHESIS/DIAGNOSTIC USE RNA,
Viral/ANALYSIS/GENETICS/*ISOLATION & PURIF Support, Non-U.S. Gov't
Virus Cultivation JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).