Mouse anti-Human CD44 Monoclonal Antibody | anti-CD44 antibody

CD44

Cat. Num. AAA344015

• Gene Names: CD44; IN; LHR; MC56; MDU2; MDU3; MIC4; Pgp1; CDW44; CSPG8; HCELL; HUTCH-I; ECMR-III
• Reactivity: Human
• Synonyms: CD44; Monoclonal Antibody; anti-CD44 antibody

• Host: Mouse
• Reactivity: Human
• Clonality: Monoclonal
• Form/Format: Tris Buffer, pH 7.3 - 7.7, with 1% BSA and <0.1% Sodium Azide
• Sequence Length: 43

• Application Notes: The recommended working dilution range is 1:100 - 1:200.
• Positive Control: Benign Urothelium
• Principles and Procedures: Visualization of the antigen present in tissue sections is accomplished in a multi-step immunohistochemical staining process, in conjunction with a horseradish peroxidase (HRP) or alkaline phosphatase (AP) linked detection system. The process involves the addition of the stated antibody (primary antibody) to a tissue slide, followed by a secondary antibody (linked to an enzyme complex) which specifically binds to the primary antibody. A chromogenic substrate is then added which reacts with the enzyme complex, resulting in a colorimetric reaction at the site of the antigen. Results are interpreted using a light microscope.
• Reconstitution: The prediluted antibody does not require any mixing, dilution, reconstitution, or titration; the antibody is ready-to-use and optimized for staining.; The concentrated antibody requires dilution in the optimized buffer, to the recommended working dilution range.
• Specimen Collection and Preparation for Analysis: Each tissue section should be fixed with 10% neutral buffered formalin, cut to the applicable thickness (4um), and placed on a glass slide that is positively charged. The prepared slide may then be baked for a minimum of 30 minutes in a 53-65 degree C oven (do not exceed 24 hours).; Note: Performance evaluation has been shown on human tissues only. Variable results may occur due to extended fixation time or special processes of specific tissue preparations.
• Preparation and Storage: Store at 2-8 degree C. Do not freeze.; To ensure proper stability and delivery of the antibody after each run, replace the cap and immediately place the bottle in a refrigerator in an upright position.; Positive and negative controls should be simultaneously run with unknown specimens.

Immunohistochemistry (IHC)

( CD44 [IHC044] on Breast Cancer)

Related Product Information for anti-CD44 antibody

Intended Use: The CD44 [IHC044] antibody is intended for qualified laboratories to qualitatively identify by light microscopy the presence of associated antigens in sections of formalin-fixed, paraffin-embedded tissue sections using IHC test methods.
Description: Cluster of differentiation 44 (CD44) is a glycoprotein receptor for hyaluronic acid, which plays a fundamental role in cellular adhesion, stromal binding, migration, and cell-cell interactions. Studies have suggested that the CD44-hyaluronate interaction is central to tumor invasiveness. Positive staining with Anti-CD44 is implicated in a multitude of different cancer types, including breast, prostatic, renal cell, colonic, hepatocellular, and genitourinary carcinomas, as well as Non-Hodgkin's Lymphoma, metastatic melanoma, gastric cancer, and some soft tissue tumors. It has also been demonstrated that there is a positive correlation between tumor progression and increased expression of CD44v, a high molecular weight CD44 isoform that has been described in epithelial cells. Given the expression of CD44 in a wide range of cancers, the most practical application of CD44 immunostaining is its use in discriminating between urothelial transitional cell carcinoma in situ from non-neoplastic changes in the urothelium.

References

1. Li F, et al. Cell Res. 2007; 17:3-14.
2. Ponta H, et al. Nat Rev Mol Cell Biol. 2003; 4:33-45.

NCBI and Uniprot Product Information

• NCBI GI #: 685122
• NCBI GeneID: 960
• Molecular Weight: 3,327 Da
• NCBI Official Full Name: CD44, partial
• NCBI Official Synonym Full Names: CD44 molecule (Indian blood group)
• NCBI Official Symbol: CD44
• NCBI Official Synonym Symbols: IN; LHR; MC56; MDU2; MDU3; MIC4; Pgp1; CDW44; CSPG8; HCELL; HUTCH-I; ECMR-III
• NCBI Protein Information: CD44 antigen
• UniProt Protein Name: CD44 antigen
• Protein Family: CD44 antigen
• UniProt Gene Name: CD44
• UniProt Synonym Gene Names: LHR; MDU2; MDU3; MIC4; ECMR-III; PGP-1; PGP-I

NCBI Description

The protein encoded by this gene is a cell-surface glycoprotein involved in cell-cell interactions, cell adhesion and migration. It is a receptor for hyaluronic acid (HA) and can also interact with other ligands, such as osteopontin, collagens, and matrix metalloproteinases (MMPs). This protein participates in a wide variety of cellular functions including lymphocyte activation, recirculation and homing, hematopoiesis, and tumor metastasis. Transcripts for this gene undergo complex alternative splicing that results in many functionally distinct isoforms, however, the full length nature of some of these variants has not been determined. Alternative splicing is the basis for the structural and functional diversity of this protein, and may be related to tumor metastasis. [provided by RefSeq, Jul 2008]

Uniprot Description

Receptor for hyaluronic acid (HA). Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases (MMPs). Adhesion with HA plays an important role in cell migration, tumor growth and progression. In cancer cells, may play an important role in invadopodia formation. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events. Receptor for LGALS9; the interaction enhances binding of SMAD3 to the FOXP3 promoter, leading to up-regulation of FOXP3 expression and increased induced regulatory T (iTreg) cell stability and suppressive function ().