Seth Clint Brauns

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BACKGROUND Cyclo(Phe-Pro) has been shown to inhibit cancer cell growth and induce apoptosis in HT-29 colon cancer cells. MATERIALS AND METHODS The molecular mechanisms mediating cyclo(Phe-Pro)-induced apoptosis in HT-29 cells were investigated. Cells were treated with 5 mM or 10 mM cyclo(Phe-Pro) for varying times. Immunoblot analysis was used to detect(More)
Studies have suggested a possible form of therapy based on the use of maturation-inducing compounds to induce differentiation of neoplastic cells and stimulate faster recovery of the normal cell population. The study of the effects of nine cyclic dipeptides on biochemical markers of differentiation implicated their potential to induce differentiation.(More)
BACKGROUND An increasing number of cyclic dipeptides (CDPs), particularly those containing proline, have been shown to exhibit important biological activity. MATERIALS AND METHODS We investigated the potential of seven proline-based CDPs to inhibit cancer cell growth in HT-29, HeLa and MCF-7 cell lines. We also tested whether any of the CDPs were able to(More)
The study investigates two cyclic dipeptides, cyclo(Tyr-Tyr) (cTT) and cyclo(Phe-Tyr) (cPT) with respect to their biological activity. Investigations using the whole-cell patch-clamp technique testing the effects of 100 microM cyclic dipeptide on ion channels, revealed reversible voltage-dependant blockade for cTT, while cPT exhibited irreversible(More)
Although cyclic diketopiperazines have been known since the beginning of the century, only now have they attracted considerable interest with respect to their biological activity. The aim of this study was to determine if the diketopiperazines cyclo(L-histidyl-L-phenylalanyl) (cyclo(His-Phe)) and cyclo(L-histidyl-L-tyrosyl) (cyclo(His-Tyr)) have significant(More)
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