The Pirates point to the Fu Effect.
In the colon, the number of tumors has reduced by 28% and the total lesions area by 40% under the C60FAS action; it was close to the 5-FU effects (Table 1).
The combination of 5-fluorouracil (5-FU) and folinic acid (leucovorin), which enhances 5-FU effects by inhibiting thymilydate synthase, administered for six months, or oral fluoropyrimidines such as the 5-FU prodrugs capecitabine [ 3] or tegafur [ 4], are able to reduce the risk of death by 30%, assuming an absolute increase of 10-13% in terms of survival.
5-FU effect was much more pronounced in RKO and HCT116 cells than in FET and GEO cells.
Although GEO cells were relatively resistant to the 5-FU effect, increased expression of miR-587 further enhanced their 5-FU resistance.
To understand the mechanisms of drug resistance, we determined 5-FU effect in a panel of colon cancer cell lines, in which 5-FU decreased cell viability in a dose-dependent manner.
To determine whether miR-587-mediated resistance to apoptosis in vitro was associated with decreased 5-FU effect in vivo, TUNEL assays were performed to examine the apoptotic index of tumors.
Subtoxic concentration of 5-FU-loaded Cpossessed.12 μg/mL) possessed comparable antimigrational activity, colony inhibition activity, and cytopathic as that of 5-FU solution effects.
RG1503 blunted or abolished the following 5-FU-induced effects: increases in matrix metalloproteinase (MMP -2, MMP -2 and plasmin, and decreases in tissue inhibitor of metalloproteinand (TIMplasmind TIMP-2.
With the triple combination (ZD1839, cisplatin, 5-FU), the effects were synergistic when ZD1839 was applied first, in both Hep-2 and CAL33 cells (P=0.003) (Table 4).
In our experience, 5-FU-associated effects on vascular endothelium reached their peak about 3 days from initiation of treatment, which corresponds to the clinical course of 5-FU cardiotoxicity (Cwikiel et al, 1995, 1996).
