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Full-Text Articles in Medicine and Health Sciences

Propranolol Sensitizes Vascular Sarcoma Cells To Doxorubicin By Altering Lysosomal Drug Sequestration And Drug Efflux, Jhuma Saha, Jong Hyuk Kim, Clarissa N. Amaya, Caleb M. Witcher, Ali Khammanivong, Derek M. Korpela, David R. Brown, Josephine Taylor, Brad A. Bryan, Erin B. Dickerson Jan 2021

Propranolol Sensitizes Vascular Sarcoma Cells To Doxorubicin By Altering Lysosomal Drug Sequestration And Drug Efflux, Jhuma Saha, Jong Hyuk Kim, Clarissa N. Amaya, Caleb M. Witcher, Ali Khammanivong, Derek M. Korpela, David R. Brown, Josephine Taylor, Brad A. Bryan, Erin B. Dickerson

Faculty Publications

Angiosarcoma is a rare cancer of blood vessel–forming cells with a high patient mortality and few treatment options. Although chemotherapy often produces initial clinical responses, outcomes remain poor, largely due to the development of drug resistance. We previously identified a subset of doxorubicin-resistant cells in human angiosarcoma and canine hemangiosarcoma cell lines that exhibit high lysosomal accumulation of doxorubicin. Hydrophobic, weak base chemotherapeutics, like doxorubicin, are known to sequester within lysosomes, promoting resistance by limiting drug accessibility to cellular targets. Drug synergy between the beta adrenergic receptor (β-AR) antagonist, propranolol, and multiple chemotherapeutics has been documented in vitro, and …


Phenolics From The Fruits Of Maclura Pomifera, Zushang Su, Ping Wang, Wei Yuan, Greg Grant, Shiyou Li Jan 2017

Phenolics From The Fruits Of Maclura Pomifera, Zushang Su, Ping Wang, Wei Yuan, Greg Grant, Shiyou Li

NCPC Publications and Patents

Two new compounds, maclurin A (1) and maclurin B (2), and six known ones, ononin (3), pterofuran (4), osajin (5), pomiferin (6), 3,4-dihydroxybenzoic acid (7), and 2,3,4-trihydroxybenzoic acid (8) were isolated from the fruit of Maclura pomifera. Compounds 3 and 4 were isolated from the genus for the first time. Structure elucidation was achieved by spectroscopic measurements and by comparison with literature data. Compounds 2-4 exhibited activities against the cancer cell lines A549 and Panc-28 with GI50 values from 18.1 to 32.2, and 20.6 to 43.5 μM, respectively. Compounds 2 and 4 also showed cytotoxicity against HCT 116 …


Inhibition Of Enterobacter Cloacae And Klebsiella Oxytoca By Garlic (Allium Sativum L.) And Garlic Pills, Lucinda Choules, Dennis A. Gravatt, Stephen M. Kosovich, Wei Yuan, Ping Wang, Ron Havner Jan 2016

Inhibition Of Enterobacter Cloacae And Klebsiella Oxytoca By Garlic (Allium Sativum L.) And Garlic Pills, Lucinda Choules, Dennis A. Gravatt, Stephen M. Kosovich, Wei Yuan, Ping Wang, Ron Havner

Faculty Publications

Multidrug resistant infections and superinfections are increasing globally. Intrinsic and acquired resistance to multiple antibiotics by bacteria from the Enterobacteriaceae family exasperate treatment efforts by clinicians. Carbapenem antibiotics were once relied upon to treat multidrug resistant infections. However, Carbapenem Resistant Enterobacteriaceae (CRE) infections are becoming more common, requiring that an alternative treatment be found. This study trialed an ancient cure, Fresh Garlic Extract (FGE) created from garlic (Allium sativum L.) and commercially prepared garlic pills against two opportunistic Enterobacteriaceae in vitro utilizing: disc diffusion, well diffusion (introducing DIFF-bolts), and HPLC. FGE and four brands of garlic pills inhibited the growth …