The present disclosure relates to
a DNA construct, and a strain into which a recombinant vector comprising the
DNA construct has been introduced. The
DNA construct according to the present disclosure allows the expression levels of genes, operably linked downstream of first and second promoters, in a host strain or
cell, to be balanced, so that
cancer diagnosis and treatment may be performed simultaneously. In addition, the
DNA construct of the present disclosure completely does not allow the anticancer
protein and the reporter
protein to be expressed at all in the absence of
doxycycline, and thus it allows the anticancer
protein to be expressed at an appropriate
dose for
cancer treatment by controlling whether or not treatment with
doxycycline is performed, and at the same time, enables the size of the
cancer to be monitored in real time depending on the expression level of the reporter protein.