The present invention relates to a recombinant lentivirus vector comprising a gene which codes TRAIL protein and CD protein, and cells transfected with lentivirus manufactured by using the vector. Host cells transfected with the recombinant lentivirus of the present invention maintain high cell proliferation rates and overexpress TRAIL protein and CD protein. Accordingly, mesenchymal stem cells transfected with the lentivirus can be used as a cell therapeutic agent.
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