7 rezultatima
OBJECTIVE
The anti-cancer effect of β-lapachone (β-lap) is positively related to the cellular activity of NAD(P)H:quinone oxidoreductase (NQO1). Heat shock has been reported to elevate cellular NQO1. The effect of heating on the NQO1 expression in human osteosarcoma cells (HOS) and the response of
OBJECTIVE
The purpose of the present study was to evaluate the efficacy of mild hyperthermia to potentiate the anticancer effects of beta-lapachone (3,4-dihydro-2,2-dimethyl-2H-naphthol[1,2-b]pyran-5,6-dione) by up-regulating NAD(P)H:quinone oxidoreductase (NQO1) in cancer cells.
METHODS
Effects of
β-Lapachone is a phytochemotherapeutic originally isolated from Lapacho tree whose extract has been used medicinally for centuries. It is well known that NAD(P)H:quinone oxidoreductase (NQO1) activity is the principal determinant of β-Lapachone cytotoxicity. As NQO1 is overexpressed in most common
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The low efficiency homing of nanomaterials in tumors remains a major challenge in nanomedicine. Inspired by the apoptosis targeting properties of phosphatidylserine (PS), a self-amplified apoptosis targeting nanoplatform (MNPs-ZnDPA/β-Lap) is fabricated combining Zn0.4 Co0.6
OBJECTIVE
Bio-reduction/activation of anti-cancer drug beta-lapachone (beta-lap) is mediated by NAD(P)H: Quinone oxidoreductase (NQO1). We investigated the feasibility of using mild temperature hyperthermia to increase the anti-cancer effect of beta-lap by up-regulating NQO1 expression.
METHODS
NQO1
Red Lapacho (Tabebuia impetiginosa, syn. Tabebuia avellanedae), a canopy tree indigenous to the Amazonian rainforest and other parts of South America, has been acclaimed to be one of the "miraculous" cures for cancer and tumours. For the first time, during the 1960s, it attracted considerable