Immunogenic PGDF-AB dimers in crude leucocyte interferon batches (CROSBI ID 82273)
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Židovec, Snježana ; Mažuran, Renata
engleski
Immunogenic PGDF-AB dimers in crude leucocyte interferon batches
The infection of human peripheral blood leukocytes (hPBL) with Sendai virus in vitro, induces the synthesis of human leukocyte interferons (IFN-alpha n3) as well as other cytokines. The authors discovered that supernatants of virus-infected hPBL also contained significant amounts of platelet-derived growth factor AB (PDGF-AB). The concentrations of immunogenic PDGF-AB in the interferon batches were determined by quantitative enzyme-linked immunosorbent assay (ELISA) before and after the inactivation of Sendai virus by acidification (pH 2) for 5 days. Immunogenic PDGF-AB molecules were detected in all interferon batches before and after acidification. The virus inactivation process caused a significant change in the content of immunogenic PDGF-AB in the interferon samples. Inactivation of the Sendai virus by acidification favoured the appearance of PDGF-AB dimers in the majority of samples.
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