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Mfg Part Number

Ab00728-10.3

Vector Labs Ab00728-10.3 Anti-CD22 [hL22 (Epratuzumab)], Human IgG1, Fc Silent™, kappa (200 μg)

VECTOR LABS

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Quick Overview

This antibody was prepared by the humanization of LL2 (EPB-2), a murine anti-CD22 IgG2a raised against Raji Burkitt lymphoma cells. Murine sequences comprise 5–10% of the molecule, with the remainder being human framework sequences, which greatly reduces the potential for immunogenicity (Traczewski, 2010).

$517.40

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Description

Product Class: Purified
Clone ID: hL22 (Epratuzumab)
Heavy Chain Modification: Fc Silent™
Synonyms: Leu14; B-cell receptor CD22; B-lymphocyte cell adhesion molecule; BL-CAM; Sialic acid-binding Ig-like lectin 2; Siglec-2; T-cell surface antigen Leu-14
Amount: 200 μg
Application Codes Clone: Blocking; IP; FC
Shipping Temperature: Wet Ice
Buffer Composition: PBS with 0.02% Proclin 300.
Original Format: IgG1
Storage Temperature: Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Specificity Statement: This antibody is specific for the 3rd Ig-like domain of human CD22 (epitope B), a cell surface glycoprotein present on mature B-cells and on many types of malignant B-cells.
Application Notes: Epratuzumab binds to the third extracellular domain of CD22, inducing CD22 phosphorylation, resulting in negative modulation of BCR activation, and rapid CD22 internalization, leading to modulation of B-cell homing (Traczewski, 2010). Initial phase II and two terminated early phase III studies suggest that the use of this antibody to treat systemic lupus erythematosus is effective and well tolerated, but both phase III trials failed to meet primary clinical efficacy endpoints. Additionally, in vitro studies and clinical trials indicate that this antibody can be used in combination therapy with another inhibitor of B-cell activity, rituximab (anti-CD20), in the treatment of non-Hodgkin lymphoma (Traczewski, 2010).

Product Class:	Purified
Clone ID:	hL22 (Epratuzumab)
Heavy Chain Modification:	Fc Silent™
Synonyms:	Leu14; B-cell receptor CD22; B-lymphocyte cell adhesion molecule; BL-CAM; Sialic acid-binding Ig-like lectin 2; Siglec-2; T-cell surface antigen Leu-14
Amount:	200 μg
Application Codes Clone:	Blocking; IP; FC
Shipping Temperature:	Wet Ice
Buffer Composition:	PBS with 0.02% Proclin 300.
Original Format:	IgG1
Storage Temperature:	Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Specificity Statement:	This antibody is specific for the 3rd Ig-like domain of human CD22 (epitope B), a cell surface glycoprotein present on mature B-cells and on many types of malignant B-cells.
Application Notes:	Epratuzumab binds to the third extracellular domain of CD22, inducing CD22 phosphorylation, resulting in negative modulation of BCR activation, and rapid CD22 internalization, leading to modulation of B-cell homing (Traczewski, 2010). Initial phase II and two terminated early phase III studies suggest that the use of this antibody to treat systemic lupus erythematosus is effective and well tolerated, but both phase III trials failed to meet primary clinical efficacy endpoints. Additionally, in vitro studies and clinical trials indicate that this antibody can be used in combination therapy with another inhibitor of B-cell activity, rituximab (anti-CD20), in the treatment of non-Hodgkin lymphoma (Traczewski, 2010).

Specifications

More Information
Brand	Vector Labs
UNSPSC	12161500

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