TY - JOUR
T1 - In vitro detection of canine distemper virus nucleic acid with a virus-specific cDNA probe by dot-blot and in situ hybridization
AU - Oglesbee, M.
AU - Jackwood, D.
AU - Perrine, K.
AU - Axthelm, M.
AU - Krakowka, S.
AU - Rice, J.
N1 - Funding Information:
The authors wish to thank Dr. Opendra Narayan for his advice in instituting the in situ hybridization technique. This work was supported by the Stateo f Ohio Canine Research Fund and grant ROl-14821, N.H.I., P.H.S. and by Corporate Technical Development, Battelle Memorial Institute. Dr. M. Oglesbee is supported by a DuPont fellowship.
PY - 1986/11
Y1 - 1986/11
N2 - A cDNA library was prepared from canine distemper viral (CDV) messenger RNA (mRNA) derived from Vero cells lytically infected with the Onderstepoort strain (Ond) of CDV. A 300 base pair insert was identified which, by Northern blot analysis and Sanger sequence data, was shown to be specific to the nucleocapsid gene. The nucleocapsid (NC) clone was radiolabeled with 32P using nick translation and used to detect viral RNA in both dot-blot and in situ preparations of Vero cells lytically infected with Onderstepoort CDV (Ond-CDV) and immortalized mink lung cells persistently infected with racoon origin CDV (CCL64-RCDV). Dot-blot hybridization results paralleled immunofluorescent results in the lytically infected cells. In 18 persistently infected cell lines from the RCDV-CCL64 parental stock, 13 lines were positive and two were negative on both immunofluorescence and dot-blot hybridization analysis for CDV antigen and RNA, respectively. Viral nucleic acid was detected in these persistently infected cells, where as few as 1.9% of the members of a line were positive on immunofluorescence. A dot-blot autoradiographic signal was obtained in three lines which were negative for CDV antigen. CDV RNA was detected in both lytically and persistently infected cell lines by in situ hybridization, where decreasing probe length was important in increasing the sensitivity of this assay. Viral RNA was detected in over 90% of the lytically infected cells, where only 70% were positive for viral antigen by immunofluorescence.
AB - A cDNA library was prepared from canine distemper viral (CDV) messenger RNA (mRNA) derived from Vero cells lytically infected with the Onderstepoort strain (Ond) of CDV. A 300 base pair insert was identified which, by Northern blot analysis and Sanger sequence data, was shown to be specific to the nucleocapsid gene. The nucleocapsid (NC) clone was radiolabeled with 32P using nick translation and used to detect viral RNA in both dot-blot and in situ preparations of Vero cells lytically infected with Onderstepoort CDV (Ond-CDV) and immortalized mink lung cells persistently infected with racoon origin CDV (CCL64-RCDV). Dot-blot hybridization results paralleled immunofluorescent results in the lytically infected cells. In 18 persistently infected cell lines from the RCDV-CCL64 parental stock, 13 lines were positive and two were negative on both immunofluorescence and dot-blot hybridization analysis for CDV antigen and RNA, respectively. Viral nucleic acid was detected in these persistently infected cells, where as few as 1.9% of the members of a line were positive on immunofluorescence. A dot-blot autoradiographic signal was obtained in three lines which were negative for CDV antigen. CDV RNA was detected in both lytically and persistently infected cell lines by in situ hybridization, where decreasing probe length was important in increasing the sensitivity of this assay. Viral RNA was detected in over 90% of the lytically infected cells, where only 70% were positive for viral antigen by immunofluorescence.
KW - cDNA
KW - canine distemper virus nucleic acid
KW - dot-blot and in situ hybridization
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U2 - 10.1016/0166-0934(86)90022-4
DO - 10.1016/0166-0934(86)90022-4
M3 - Article
C2 - 3539957
AN - SCOPUS:0023039166
SN - 0166-0934
VL - 14
SP - 195
EP - 211
JO - Journal of Virological Methods
JF - Journal of Virological Methods
IS - 3-4
ER -