Invitrogen™ CD56 Monoclonal Antibody (123C3)

Mouse Monoclonal Antibody

Supplier:  Invitrogen™ MA135249

Catalog No. 01671212

Description

The antibody recognizes a transmembrane glycoprotein of 140 and 180 kD which has been identified as NCAM (Neural Cell Adhesion Module). At the international Workshop on SCLC antibodies 123C3 has been categorized as cluster 1 antibody. All cells in small cell carcinomas and carcinoids of the lung are strongly positive for 123C3. A minority of cases of other major types of lung carcinoma are sometimes positive as well: however this positivity is generally weak and focal. Adenoid cystic carcinomas of bronchial glands are strongly positive. Neuroblastoma's and Wilms tumors are usually also staining strongly positive. In non-small lung cell carcinomas, 123C3 staining has been associated with more advanced stage and a decreased survival after surgery. Furthermore, this antibody can be used to support diagnosis of lymphoma or to detect residual disease for cases of CD56 positive T/NK -cell lymphoma in which the neoplastic lymphoid cells are small and show minimal atypia, especially in small biopsies.

CD56, also known as neural cell adhesion molecule (NCAM), is a highly glycosylated transmembrane glycoprotein of the immunoglobulin family. It plays a crucial role in cell adhesion, migration, axonal growth, pathfinding, and synaptic plasticity. CD56 is ubiquitously expressed in the nervous system in isoforms ranging from 120-180 kDa and is involved in homotypic adhesion of neural cells. It mediates interactions by binding extracellular matrix components such as laminin and integrins, with polysialic modification reducing CD56-mediated adhesion. In the hematopoietic system, CD56 is expressed on natural killer (NK) cells and a subset of T cells known as NKT cells. It is also found on most neuroectodermal-derived cell lines, tissues, and neoplasms, including retinoblastoma, medulloblastoma, astrocytomas, and neuroblastoma. CD56 serves as a widely used neuroendocrine marker with high sensitivity for neuroendocrine tumors and ovarian granulosa cell tumors. Diseases associated with CD56 dysfunction include rabies and blastic plasmacytoid dendritic cell neoplasms, highlighting its importance in both neural and immune system functions.

Specifications

• Antigen: CD56
• Classification: Monoclonal
• Concentration: 0.1 mg/mL
• Formulation: PBS with 0.1% BSA and 0.02% sodium azide
• Gene Accession No.: P13591
• Gene Symbols: Ncam1
• Immunogen: Proprietary Immunogen.
• Quantity: 1 mL
• Primary or Secondary: Primary
• Target Species: Human
• Product Type: Antibody
• Isotype: IgG1

• Applications: Immunohistochemistry (Frozen), Immunohistochemistry (Paraffin), Immunocytochemistry
• Clone: 123C3
• Conjugate: Unconjugated
• Gene: Ncam1
• Gene Alias: adhesion molecule; antigen recognized by monoclonal antibody 5.1H11; Cd56; CD-56; CD56 120 kDa GPI-linked isoform; CD56 140 kDa isoform; CD56 140 kDa VASE isoform; E NCAM; E-NCAM; MSK39; N CAM1; NCAM; N-CAM; Ncam1; N-CAM-1; NCAM-1; NCAMC; NCAM-C; neural cell adhesion molecule; Neural cell adhesion molecule 1; neural cell adhesion molecule, NCAM; sCD56; sNCAM; soluble CD56; soluble NCAM
• Host Species: Mouse
• Purification Method: Affinity chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 4684
• Content And Storage: 4°C
• Form: Liquid