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BioAssay: AID 710949

Inhibition of alpha-glucosidase in human HepG2 cells assessed as increase in expression of immature high mannose type N-linked oligosachcharides at 500 uM after 48 hrs by MALDI-TOF MS analysis relative to untreated control

We report on the synthesis and the biological evaluation of a series of alpha-1-C-alkylated 1,4-dideoxy-1,4-imino-l-arabinitol (LAB) derivatives. The asymmetric synthesis of the derivatives was achieved by asymmetric allylic alkylation, ring-closing metathesis, and Negishi cross-coupling as key reactions. alpha-1-C-Butyl-LAB is a potent inhibitor of intestinal maltase, isomaltase, and sucrase, more ..
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 Tested Compounds
 Tested Compounds
All(2)
 
 
Active(1)
 
 
Inactive(1)
 
 
 Tested Substances
 Tested Substances
All(2)
 
 
Active(1)
 
 
Inactive(1)
 
 
AID: 710949
Data Source: ChEMBL (878692)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2013-06-29
Modify Date: 2014-08-24

Data Table ( Complete ):           View Active Data    View All Data
Target
Sequence: RecName: Full=Lysosomal alpha-glucosidase; AltName: Full=Acid maltase; AltName: Full=Aglucosidase alfa; Contains: RecName: Full=76 kDa lysosomal alpha-glucosidase; Contains: RecName: Full=70 kDa lysosomal alpha-glucosidase; Flags: Precursor
Description ..   
Protein Family: GH31_MGAM_SI_GAA
Comment ..   

Gene:GAA     Related Protein 3D Structures     More BioActivity Data..
BioActive Compound: 1
Description:
Title: alpha-1-C-butyl-1,4-dideoxy-1,4-imino-l-arabinitol as a second-generation iminosugar-based oral alpha-glucosidase inhibitor for improving postprandial hyperglycemia.

Abstract: We report on the synthesis and the biological evaluation of a series of alpha-1-C-alkylated 1,4-dideoxy-1,4-imino-l-arabinitol (LAB) derivatives. The asymmetric synthesis of the derivatives was achieved by asymmetric allylic alkylation, ring-closing metathesis, and Negishi cross-coupling as key reactions. alpha-1-C-Butyl-LAB is a potent inhibitor of intestinal maltase, isomaltase, and sucrase, with IC50 values of 0.13, 4.7, and 0.032 muM, respectively. Matrix-assisted laser desorption ionization time-of-flight mass spectrometric analysis revealed that this compound differs from miglitol in that it does not influence oligosaccharide processing and the maturation of glycoproteins. A molecular docking study of maltase-glucoamylase suggested that the interaction modes and the orientations of alpha-1-C-butyl-LAB and miglitol are clearly different. Furthermore, alpha-1-C-butyl-LAB strongly suppressed postprandial hyperglycemia at an early phase, similar to miglitol in vivo. It is noteworthy that the effective dose was about 10-fold lower than that for miglitol. alpha-1-C-Butyl-LAB therefore represents a new class of promising compounds that can improve postprandial hyperglycemia.
(PMID: 23106358)
Categorized Comment - additional comments and annotations
From BioAssay Depositor:
Assay Type: Binding
Target Type: Target is a single protein chain
Assay Data Source: Scientific Literature
BAO: Assay Format: cell-based format
Protein Target Class: enzyme hydrolase
Assay Cell Type: HepG2
Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Inhibition activity commentInhibition activity commentString
2Inhibition standard flagInhibition standard flagInteger
3Inhibition qualifierInhibition qualifierString
4Inhibition published valueInhibition published valueFloat
5Inhibition standard valueInhibition standard valueFloat

Data Table (Concise)
Data Table ( Complete ):     View Active Data    View All Data
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