Anti-CD3 e (Ms,Hu,Mo,Ho,Bo,Sw,Rb,Dg,Ca,Mm,Ck,Bi,Fr) from Rat (HH3E) – unconj. for FFPE tissues
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SKU DIA-303 Specificity Species Reactivity Immunogen Host Species Isotype Clone Clonality (Mono-/Polyclonal) Application Conjugation Dilution Format Product line / Topic Intended Use Temperature - Storage Temperature - Transport Search Code Manufacturer / Brand Uniprot_ID Gene_ID Alias
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Antibody clone HH3E has been validated specifically for the detection of murine CD3 in formalin-fixed paraffin-embedded tissue sections (mouse FFPE). It detects a conserved epitope on the CD3 epsilon chain in a broad variety of species.
CD3 is a defining feature of cells belonging to the T cell lineage and can therefore be used as T cell marker. Cluster of differentiation 3 (CD3) is composed of four distinct polypeptide chains CD3 gamma, CD3 delta, CD3 epsilon and CD3 zeta, that form a multimeric protein complex. The CD3 complex associates non-covalently with the T cell receptor (TCR) and serves as a T cell co-receptor. The CD3 components have long cytoplasmic tails that associate with cytoplasmic signal trans-duction molecules. The T cell antigen receptor (TCR) recognizes foreign antigens and translates such recognition events into in-tracellular signals that elicit a change in the cell from a dormant to an activated state. During T cell maturation the expression of CD3 migrates from the cytoplasm of pro-thymocytes to the cell-membrane of thymocytes. The specific appearance at all stages of T cell development make CD3 an ideal marker for normal T cells and T cell neoplasms (lymphomas, leukemias). Moreover, CD3 is a usefull immunohistochemical marker for T cells in tissue sections.
In a clinical setting in humans, CD3 serves as an important T cell marker for the classification of malignant lymphomas and leu-kemias. It can also be used to detect T cells in coeliac disease, lymphocytic and collagenous colitis. An anti-CD3 epsilon anti-body (Okt3) has been clinically approved for the induction of immunosuppression in organ transplantation. In animal studies anti-CD3 antibodies can induce tolerance to allografts.
Immunohistochemistry of mouse CD3e (TCRE) in formalin-fixed paraffin-embedded tissue sections
The monoclonal antibody clone HH3E specifically stains mouse tissue sections by IHC-FFPE: Lymph nodes (A,B), spleen (C) and kidney (D).
All sections were stained by an indirect alkaline phosphatase method according to standard procedures with antigen retrieval by high-temperature heating in citrate buffer and counterstaining with Haematoxylin.
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- Salvadori S et al. Abnormal signal transduction by T cells of mice with parental tumors is not seen in mice bearing IL-2-secreting tumors. J Immunol. 153(11):5176-5182, 1994
- Nicolls MR et al. Induction of long-term specific tolerance to allografts in rats by therapy with an anti-CD3-like monoclonal antibody. Transplantation 55(3):459-468, 1993
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