Abstract
In this work, the full-length open reading frame of the human interleukin-10 (hIL-10) gene was amplified through reverse transcription–polymerase chain reaction (RT-PCR), and then PCR products were inserted into pcDNA4/HisMax to construct an eukaryotic expression vector. After optimization by green fluorescent protein (GFP), recombinant hIL-10 genes were transfected and expressed in rabbit synovial cells compounded with liposome in vitro. In cell culture supernatant, rhIL-10 was detected using enzyme-linked immunosorbent assay (ELISA) at time intervals of 12 hours, 24 hours, 48 hours, 72 hours, 7 days, and 14 days. After 12 hours of transfection, ELISA showed that transgene expression of hIL-10 in rabbit synovial cells was elevated; at 72 hours, hIL-10 expression reached its peak value; and then it declined gradually until 7 days, compared with the control. After 14 days, transgene expression ceased. Gene cloning of hIL-10 and its transgene expression in synovial cells therefore gives a basis for the gene therapy of rheumatoid arthritis.
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