CoRT-PCR assay for the discrimination of endogenous reverse transcriptase activity in eukaryotic cell lines from infectious retrovirus contamination

   
   

The present invention relates to the detection of the presence of reverse transcriptase enzymatic activity in eukaryotic cell lines. Specifically, the present invention comprises a method for discriminating between endogenous reverse transcriptase activity in a substrate cell line (e.g., avian) used as substrates for the manufacture of biological products (including viral vaccines) from exogenous infectious retrovirus by using a combination of transmissibility assay (viral replication) and PBRT assay (RT-PCR). Appropriate levels of viral amplification and number of PCR cycles are determined and employed that permit detection of exogenous infectious RT activity but not endogenous RT activity.

A invenção atual relaciona-se à deteção da presença da atividade enzymatic do transcriptase reverso em linhas eukaryotic da pilha. Especificamente, a invenção atual compreende um método para discriminar entre a atividade reversa endogenous do transcriptase em uma linha da pilha da carcaça (por exemplo, avian) usada como carcaças para a manufatura de produtos biológicos (vacinas viral including) do retrovirus infectious exogenous usando uma combinação do assay do transmissibility (replication viral) e do assay de PBRT (RT-PCR). Os níveis apropriados do amplification viral e o número de ciclos de PCR são determinados e empregados que deteção da licença da atividade infectious exogenous do RT mas da atividade nao endogenous do RT.

 
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