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Vedolizumab (anti-α4β7-integrin)

Synonyms: Entyvio

Catalog No.A2045 Purity:98%

Vedolizumab (anti-α4β7-integrin) is a humanized IgG1 monoclonal antibody that targets the α4β7 integrin for the treatment of ulcerative colitis and Crohn's disease.

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Purity & Quality Control

Batch: A204502 Purity: 98% Protein concentration: 5.72mg/ml Endotoxin Level: ＜1EU/mg

Choose Selective Integrin Inhibitors

Name	Citation	Integrin
Cilengitide trifluoroacetate	66	+++
A-205804	6	++
Cyclo(RGDyK)	13	++
SB273005	25	++++
RGD (Arg-Gly-Asp) Peptides	✔
ATN-161	✔
Cyclo(-RGDfK) TFA	✔

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1. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation. 2. "✔" indicates inhibitory effect, but without specific value.

Biological Activity

Description	Vedolizumab (anti-α4β7-integrin) is a humanized IgG1 monoclonal antibody that targets the α4β7 integrin for the treatment of ulcerative colitis and Crohn's disease.

In Vitro
In vitro	Vedolizumab (anti-α4β7-integrin) binds to a subset of human peripheral blood memory CD4⁺ T lymphocytes including gut-homing interleukin 17 T-helper lymphocytes at the highest level, also binds to eosinophils at high levels, and to naive T-helper lymphocytes, naive and memory cytotoxic T lymphocytes, B lymphocytes, natural killer cells, and basophils at lower levels; Vedolizumab binds to memory CD4⁺ T and B lymphocytes with subnanomolar potency with EC50 of 0.3-0.4 nM.^[1]
Cell Research:	PBMCs were resuspended in assay buffer for CD4 memory cell interleukin (IL) 17A intracellular staining. PBMCs were stimulated (or not stimulated, for the control samples) with 50 ng/ml phorbol 12-myristate 13-acetate and 1 µg/ml Ionomycin in the presence of 3 µM Monensin for 5 h at 37°C. After washing, cells were stained with fluorescent-labeled antibodies: vedolizumab, anti-α4 and anti-β7, anti-CD4, and anti-CD45RO, where applicable, at 4°C for 30 min. Cells were then washed with cold PBS and resuspended in fixation and permeabilization working solution staining buffer at 4°C for 30 min. After fixation and permeabilization, cells were washed with permeabilization buffer and blocked with 10% normal rat serum at 4°C for 10 min. After the blocking step, cells were stained with fluorochrome-conjugated anti_x0002_IL17A antibody at 4°C for 30 min. Finally, cells were washed with permeabilization buffer and analyzed.

In Vitro

In vitro

Vedolizumab (anti-α4β7-integrin) binds to a subset of human peripheral blood memory CD4⁺ T lymphocytes including gut-homing interleukin 17 T-helper lymphocytes at the highest level, also binds to eosinophils at high levels, and to naive T-helper lymphocytes, naive and memory cytotoxic T lymphocytes, B lymphocytes, natural killer cells, and basophils at lower levels; Vedolizumab binds to memory CD4⁺ T and B lymphocytes with subnanomolar potency with EC50 of 0.3-0.4 nM.^[1]

Cell Research:

PBMCs were resuspended in assay buffer for CD4 memory cell interleukin (IL) 17A intracellular staining. PBMCs were stimulated (or not stimulated, for the control samples) with 50 ng/ml phorbol 12-myristate 13-acetate and 1 µg/ml Ionomycin in the presence of 3 µM Monensin for 5 h at 37°C. After washing, cells were stained with fluorescent-labeled antibodies: vedolizumab, anti-α4 and anti-β7, anti-CD4, and anti-CD45RO, where applicable, at 4°C for 30 min. Cells were then washed with cold PBS and resuspended in fixation and permeabilization working solution staining buffer at 4°C for 30 min. After fixation and permeabilization, cells were washed with permeabilization buffer and blocked with 10% normal rat serum at 4°C for 10 min. After the blocking step, cells were stained with fluorochrome-conjugated anti_x0002_IL17A antibody at 4°C for 30 min. Finally, cells were washed with permeabilization buffer and analyzed.

References
[1] Soler D, et al. J Pharmacol Exp Ther. 2009 Sep;330(3):864-75.

References

[1] Soler D, et al. J Pharmacol Exp Ther. 2009 Sep;330(3):864-75.

Cell Lines	Assay Type	Concentration	Incubation Time	Formulation	Activity Description	PMID

Product Details

CAS No.	943609-66-3
Molecular Weight	145.7 KD
Isotype	Human IgG1
Application	Vedolizumab (anti-α4β7-integrin)
Sterility	0.2 μM filtered
Formulation	PBS Buffer, PH 7.4
Storage (From the date of receipt)	Store the undiluted solution at 4°C in the dark to avoid freeze-thaw cycles.

Comparison of Clones for

^*Literature analysis of various clone (for this target) products available on the market shows that Selleck's selected clones are more frequently applied. (data until September 2024)

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