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Human peroxiredoxin II (Prx II) has been known to function as an antioxidant enzyme in cells. Using head-and-neck cancer cell lines, we investigated whether Prx II expression is related to the resistance of cells to radiation therapy in vivo and in vitro, and whether a Prx II antisense serves as a radiosensitizer. Increased expression of Prx II was observed(More)
Increases in transforming growth factor beta1 (TGF-beta1) mRNA and biological activity in the early phase of human cytomegalovirus (CMV) infection in fibroblasts are paralleled by increased TGF-beta1-chloramphenicol acetyltransferase (CAT) reporter gene activity. To determine how CMV infection transactivates the TGF-beta1 promoter, we examined the effects(More)
The loss of photosynthetic function should lead to the cessation of expression and finally loss of photosynthetic genes in the new heterotroph. Dinoflagellates are known to have lost their photosynthetic ability several times. Dinoflagellates have also acquired photosynthesis from other organisms, either on a long-term basis or as "kleptoplastids" multiple(More)
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We investigated the retention of dimethylsulfoniopropionate (DMSP) in phototrophic dinoflagellates arising from mixotrophy by estimating the cellular content of DMSP in Karlodinium veneficum (mixotrophic growth) fed for 7-10 days on either DMSP-rich Amphidinium carterae (phototrophic growth only) or DMSP-poor Teleaulax sp. (phototrophic growth only). In K.(More)
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