| Identification | Back Directory | [Name]
BIO 1211 | [CAS]
187735-94-0 | [Synonyms]
BIO 1211
L-Proline, N-[2-[4-[[[(2-methylphenyl)amino]carbonyl]amino]phenyl]acetyl]-L-leucyl-L-α-aspartyl-L-valyl-
(2S)-1-[(2S)-2-[[(2S)-3-carboxy-2-[[(2S)-4-methyl-2-[[2-[4-[(2-methylphenyl)carbamoylamino]phenyl]acetyl]amino]pentanoyl]amino]propanoyl]amino]-3-methylbutanoyl]pyrrolidine-2-carboxylicacid | [Molecular Formula]
C36H48N6O9 | [MDL Number]
MFCD02259692 | [MOL File]
187735-94-0.mol | [Molecular Weight]
708.8 |
| Chemical Properties | Back Directory | [Boiling point ]
962.2±65.0 °C(Predicted) | [density ]
1.306±0.06 g/cm3(Predicted) | [storage temp. ]
Store at -20°C | [solubility ]
Soluble to 2 mg/ml in 0.2M PBS | [form ]
solid | [pka]
3.40±0.20(Predicted) | [color ]
White | [Water Solubility ]
Soluble to 2 mg/ml in water |
| Hazard Information | Back Directory | [Uses]
BIO 1211 is a selective, high affinity α4β1 (VLA-4) inhibitor. | [Biological Activity]
BIO 1211 is a selectivetight-binding α4β1 (VLA-4very late antigen-4; koff = 1.4 x 10-4/sKD = 70 pM) integrin antagonist (VCAM-Ig Jurk at surface binding IC50 = 1 nM; integrin-mediated cell adhesion IC50 = 4 nM/α4β12 μM/α4β7>100 μM/α1β1α5β1α6β1αLβ2αIIBβ3) based on the Leu-Asp-Val (LDV) sequence from the alternatively spliced connecting segment-1 (CS-1) of fibronectin (aa 1980-1983). In addition to probing α4β1-mediated cellular responsesBIO 1211 is also widely used in animal disease models in vivoincluding MS (5-10 mg/kg; murine EAE) and asthma (1-10 mg/kg via intranasal or nebulizer to miceratssheep; 3 mg/sheep iv.). | [in vivo]
BIO-1211 (5 and 10 mg/kg, orally, once every other day) results in reduced cytokines expression, leukocyte trafficking, and inhibition of inflammatory responses in EAE in a dose-independent manner. BIO-1211 exhibits a considerable depletion in the EAE clinical score, which correlated with decreased expression of TNF-α, IL-17, IFN-γ and pervade of CD11b+ and CD45+ cells into the cerebral cortex[2]. | Animal Model: | Naive, C57BL/6 mice (male, 8 weeks old, 20-25 g weight)[2]. | | Dosage: | 5 and 10 mg/kg. | | Administration: | Orally once every other day starting the day before immunization until day 21 post-immunization. | | Result: | Could prevent the induction of EAE.
Significantly delayed the onset of EAE and reduced the severity of clinical EAE compared to the vehicle group.
Markedly reduced the expression of both CD11b and CD45 in comparison with the vehicle group.
mRNA and soluble form of a subset of target inflammatory cytokines (IFNγ, IL-17, and TNF-α) was dramatically decreased.
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| [IC 50]
α4β1: 4 nM (IC50); α4β7: 2 μM (IC50) | [storage]
Store at -20°C |
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