Although folate receptors (FRs) mediate folate uptake into cells, the independent role of FRs in cell proliferation remains unclear. We tested the hypothesis that transduction of FR cDNA in sense or antisense orientation using recombinant adeno-associated virus modulated FR expression and altered proliferation of cervical carcinoma cells (which constitutively overexpress FR genes). We determined that the integration of recombinant adeno-associated virions was not site specific.

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NADH oxidation, catalyzed by the microsomal enzyme system is stimulated on addition of polymeric vanadate. Maximum stimulation by polymeric vanadate was obtained in the presence of phosphate buffer. The small stimulation obtained by metavanadate (500 microM) increased on acidification followed by neutralization, or on adding a trace amount of polymeric vanadate (1 microM).

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