228862-97-3Relevant articles and documents
Targeting of glut5 for transporter-mediated drug-delivery is contingent upon substrate hydrophilicity
Nahrjou, Nazanin,Ghosh, Avik,Tanasova, Marina
, (2021/05/18)
Specific link between high fructose uptake and cancer development and progression highlighted fructose transporters as potential means to achieve GLUT-mediated discrimination between normal and cancer cells. The gained expression of fructose-specific transporter GLUT5 in various cancers offers a possibility for developing cancer-specific imaging and bioactive agents. Herein, we explore the feasibility of delivering a bioactive agent through cancer-relevant fructose-specific transporter GLUT5. We employed specific targeting of GLUT5 by 2,5-anhydro-D-mannitol and investigated several drug conjugates for their ability to induce cancer-specific cytotoxicity. The proof-of-concept analysis was carried out for conjugates of chlorambucil (CLB) in GLUT5-positive breast cancer cells and normal breast cells. The cytotoxicity of conjugates was assessed over 24 h and 48 h, and significant dependence between cancer-selectivity and conjugate size was observed. The differences were found to relate to the loss of GLUT5-mediated uptake upon increased conjugate size and hydrophobicity. The findings provide information on the substrate tolerance of GLUT5 and highlight the importance of maintaining appropriate hydrophilicity for GLUT-mediated delivery.
Synthesis of C-(D-glycopyranosyl)ethylamines and C-(D-glycofuranosyl)methylamines as potential glycosidase inhibitors
Abdel-Rahman, Adel A.-H.,El Ashry, El Sayed H.,Schmidt, Richard R.
, p. 106 - 116 (2007/10/03)
The C-glucosyl aldehyde, 2-C-(2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)ethanal was prepared from the C-glucopyranosyl propene precursor by ozonolysis. Reductive amination of the C-glucosyl aldehyde and subsequent deprotection gave 1-anilino-2-C-(α-D-glucopyranosyl)ethane. The E and Z isomers of the oxime derivative, 1-C-(α-D-arabinofuranosyl)methanal oxime were prepared by treating their aldehyde precursor with hydroxylamine. Acetylation of the oxime, followed by catalytic hydrogenation and deprotection, gave the corresponding 1-C-(α-D-arabinofuranosyl)methylamine. Reductive amination of ethyl 2,3-O-isopropylidene-α-D-lyxo-pentodialdo-1,4-furanoside using aniline gave ethyl 5-anilino-5-deoxy-D-lyxo-furanoside. Inhibition studies with these compounds on β-D-glucosidase from sweet almond, using o-nitrophenyl D-glucopyranoside as substrate, were carried out. Copyright (C) 1999 Elsevier Science Ltd.
Ethambutol-sugar hybrids as potential inhibitors of mycobacterial cell-wall biosynthesis
Reynolds, Robert C.,Bansal, Namita,Rose, Jerry,Friedrich, Joyce,Suling, William J.,Maddry, Joseph A.
, p. 164 - 179 (2007/10/03)
Ethambutol is an established front-line agent for the treatment of tuberculosis, and is also active against Mycobacterium avium infection. However, this agent exhibits toxicity, and is considered to have low potency. The action of ethambutol on the mycoba