CD57 Antibody (SPM527) - Azide and BSA Free

Novus Biologicals | Catalog # NBP2-47788

Novus Biologicals

Key Product Details

Species Reactivity

Human, Rat (Negative)

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunofluorescence, Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgM Kappa Clone # SPM527

Format

Azide and BSA Free
View all CD57 Primary Antibodies »

Product Specifications

Immunogen

Membrane antigen from HSB-2 cells

Reactivity Notes

Does not react with Rat.

Localization

Cell surface

Marker

Natural Killer Cell Marker

Specificity

Anti-CD57 marks a subset of lymphocytes known as natural killer (NK) cells. Follicular center cell lymphomas often contain many NK cells within the neoplastic follicles. Anti-CD57 also stains neuroendocrine cells and their derived tumors, including carcinoid tumor and medulloblastoma. Anti-CD57 can also be useful in separating type B3 thymoma from thymic carcinoma when combined with a panel that includes antibodies against GLUT1, CD5, and CEA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgM Kappa

Description

1.0 mg/ml of antibody purified from Bioreactor Concentrate. Prepared in 10mM PBS WITHOUT BSA & azide. Also available at 200 ug/ml WITH BSA & azide (NBP2-44351).

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Scientific Data Images for CD57 Antibody (SPM527) - Azide and BSA Free

Immunohistochemistry-Paraffin: CD57 Antibody (SPM527) - Azide and BSA Free [NBP2-47788]

Immunohistochemistry-Paraffin: CD57 Antibody (SPM527) - Azide and BSA Free [NBP2-47788]

Immunohistochemistry-Paraffin: CD57 Antibody (SPM527) - Azide and BSA Free [NBP2-47788] - Human Tonsil stained with CD57 Monoclonal Antibody (SPM527).

Applications for CD57 Antibody (SPM527) - Azide and BSA Free

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1-2 ug/ml

Immunofluorescence

0.5 - 1.0 ug/ml

Immunohistochemistry-Paraffin

2 - 4 ug/ml
Application Notes
Immunohistochemistry (Formalin-fixed): 2-4ug/ml for 30 minutes at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95C followed by cooling at RT for 20 minutes.
Optimal dilution for a specific application should be determined.

Formulation, Preparation, and Storage

Purification

Protein L or PEG purified

Formulation

10 mM PBS

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at -20 to -80C. Avoid freeze-thaw cycles.

Background: CD57

The CD57 antigen, also referred to as human natural killer-1 (HNK-1) and LEU-7, is a carbohydrate epitope containing sulfated glucuronic acid that is expressed by many cell types within the nervous system (1,2). Cellular expression of CD57 changes during progression of neural development (1). The CD57 epitope is synthesized by enzymes including a sulfotransferase and one of two glucotransferases (GlcAT-P or GlcAT-S) (1,2). The structure of the CD57/HNK-1 epitope consists of 3-O-sulfated glucuronic acid (GlcA) attached to a terminal galactose (HSO3-3GlcAbeta1-3Galbeta1-4GlcNAc-R) (1,2). The CD57 epitope was first identified and a marker for HNK cells and its expression is associated with NK cell maturation (1-3).

CD57 expression has become a common pathological marker. CD57+ CD8+ T cell expression is observed in various cancers and is often linked to reduced survival (3). On the other hand, CD57+ NK cell expression is associated with less severe disease and better prognosis in cancer patients (3). CD57 is also associated with immune dysfunction and autoimmune disease (3,4). For example, T cell immunosenescence is characterized by an upregulation of CD57 along with KLRG-1 and a loss of CD27 and CD28 expression (4). Expanded autoreactive T cells are also related to diseases including multiple sclerosis (MS) and rheumatoid arthritis (RA) (3). Conversely, reduced numbers of CD57+ NK cells and NK cell cytotoxicity is observed in various autoimmune diseases such as apoptotic dermatitis and sjogren's syndrome (3).

References

1. Focosi D, Bestagno M, Burrone O, Petrini M. CD57+ T lymphocytes and functional immune deficiency. J Leukoc Biol. 2010;87(1):107-116. https://doi.org/10.1189/jlb.0809566

2. Morise J, Takematsu H, Oka S. The role of human natural killer-1 (HNK-1) carbohydrate in neuronal plasticity and disease. Biochim Biophys Acta Gen Subj. 2017;1861(10):2455-2461. https://doi.org/10.1016/j.bbagen.2017.06.025

3. Nielsen CM, White MJ, Goodier MR, Riley EM. Functional Significance of CD57 Expression on Human NK Cells and Relevance to Disease. Front Immunol. 2013;4:422. Published 2013 Dec 9. https://doi.org/10.3389/fimmu.2013.00422

4. Lian J, Yue Y, Yu W, Zhang Y. Immunosenescence: a key player in cancer development. J Hematol Oncol. 2020;13(1):151. Published 2020 Nov 10. https://doi.org/10.1186/s13045-020-00986-z6

Long Name

Cluster of Differentiation 57

Alternate Names

Human Natural Killer-1, L2, LEU-7

Gene Symbol

B3GAT1

Additional CD57 Products

Product Documents for CD57 Antibody (SPM527) - Azide and BSA Free

Certificate of Analysis

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Product Specific Notices for CD57 Antibody (SPM527) - Azide and BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

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