TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Winter, Jochen A1 - Kunze, Rudolf A1 - Veit, Nadine A1 - Kuerpig, Stefan A1 - Meisenheimer, Michael A1 - Kraus, Dominik A1 - Glassmann, Alexander A1 - Probstmeier, Rainer T1 - Targeting of Glucose Transport and the NAD Pathway in Neuroendocrine Tumor (NET) Cells Reveals New Treatment Options JF - Cancers N2 - Background: the potency of drugs that interfere with glucose metabolism, i.e., glucose transporters (GLUT) and nicotinamide phosphoribosyltransferase (NAMPT) was analyzed in neuroendocrine tumor (NET, BON-1, and QPG-1 cells) and small cell lung cancer (SCLC, GLC-2, and GLC-36 cells) tumor cell lines. (2) Methods: the proliferation and survival rate of tumor cells was significantly affected by the GLUT-inhibitors fasentin and WZB1127, as well as by the NAMPT inhibitors GMX1778 and STF-31. (3) Results: none of the NET cell lines that were treated with NAMPT inhibitors could be rescued with nicotinic acid (usage of the Preiss–Handler salvage pathway), although NAPRT expression could be detected in two NET cell lines. We finally analyzed the specificity of GMX1778 and STF-31 in NET cells in glucose uptake experiments. As previously shown for STF-31 in a panel NET-excluding tumor cell lines, both drugs specifically inhibited glucose uptake at higher (50 μM), but not at lower (5 μM) concentrations. (4) Conclusions: our data suggest that GLUT and especially NAMPT inhibitors are potential candidates for the treatment of NET tumors. KW - WZB117 KW - neuroendocrine KW - STF-31 KW - GMX1778 KW - glucose uptake inhibitor KW - fasentin UN - https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-66405 SN - 2072-6694 SS - 2072-6694 U6 - https://doi.org/10.3390/cancers15051415 DO - https://doi.org/10.3390/cancers15051415 PM - 36900207 VL - 15 IS - 5 SP - 11 S1 - 11 PB - MDPI CY - Basel ER -