Abstract:
:Human Golgi α-mannosidase II (hGM) is a pharmaceutical target for the design of inhibitors with anti-tumor activity. Nanomolar inhibitors of hGM exhibit unwanted co-inhibition of the human lysosomal α-mannosidase (hLM). Hence, improving specificity of the inhibitors directed toward hGM is desired in order to use them in cancer chemotherapy. We report on the rapid synthesis of D-mannose derivatives having one of the RS-, R(SO)- or R(SO(2))- groups at the α-anomeric position. Inhibitory properties of thirteen synthesized α-D-mannopyranosides were tested against the recombinant enzyme Drosophila melanogaster homolog of hGM (dGMIIb) and hLM (dLM408). Derivatives with the sulfonyl [R(SO(2))-] group exhibited inhibitory activities at the mM level toward both dGMIIb (IC(50) = 1.5-2.5 mM) and dLM408 (IC(50) = 1.0-2.0 mM). Among synthesized, only the benzylsulfonyl derivative showed selectivity toward dGMIIb. Its inhibitory activity was explained based on structural analysis of the built 3-D complexes of the enzyme with the docked compounds.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Poláková M,Šesták S,Lattová E,Petruš L,Mucha J,Tvaroška I,Kóňa Jdoi
10.1016/j.ejmech.2011.01.012subject
Has Abstractpub_date
2011-03-01 00:00:00pages
944-52issue
3eissn
0223-5234issn
1768-3254pii
S0223-5234(11)00020-1journal_volume
46pub_type
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