BALB/c-hCD3 Mouse
Product Name
BALB/c-hCD3 Mouse
Product ID
C001326
Strain Name
BALB/cAnCya-Cd3tm1(hCD3)/Cya
Backgroud
BALB/cAnCya
When using this mouse strain in a publication, please cite “BALB/c-hCD3 Mouse (Catalog C001326) were purchased from Cyagen.”
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Strain Description
Cluster of differentiation 3 (CD3) is a multimeric protein complex that is essential for T cell activation and antigen recognition. It consists of five different polypeptide chains (γ, δ, ε, ζ, and η) that are noncovalently associated with the T cell receptor (TCR). The TCR is responsible for recognizing antigens presented by antigen-presenting cells (APCs), while CD3 transduces the activation signal into the T cell and activates helper T-cells and cytotoxic T-cells [1-2]. The CD3-TCR complex is expressed on the surface of all mature T cells, and its assembly is required for T cell development and function. CD3 plays a crucial role in stabilizing the TCR and facilitating its interaction with antigens. It also recruits signaling molecules to the TCR, which initiates a cascade of events that leads to T cell activation. CD3 is a highly specific T cell marker, and its expression is increased upon T cell activation. This makes it a valuable tool for identifying and characterizing T cells in tissues and blood samples. CD3 staining is also used to diagnose T-cell lymphomas and leukemias. Due to its essential role in T cell activation, CD3 is a promising target for immunosuppressive therapy. Several anti-CD3 monoclonal antibodies have been developed and are being tested in clinical trials for the treatment of autoimmune diseases, such as type 1 diabetes and rheumatoid arthritis [3].
The BALB/c-hCD3 mice are a CD3 humanized model obtained by replacing the mouse CD3 coding gene with the human CD3 gene using embryonic stem (ES) cell targeting technology. This model can be used to study T cell activation and antigen recognition mechanisms and for the development of CD3-targeted drugs in immunosuppressive therapies for autoimmune diseases.
Reference
Dong D, Zheng L, Lin J, Zhang B, Zhu Y, Li N, Xie S, Wang Y, Gao N, Huang Z. Structural basis of assembly of the human T cell receptor-CD3 complex. Nature. 2019 Sep;573(7775):546-552.
Dykhuizen M, Ceman J, Mitchen J, Zayas M, MacDougall A, Helgeland J, Rakasz E, Pauza CD. Importance of the CD3 marker for evaluating changes in rhesus macaque CD4/CD8 T-cell ratios. Cytometry. 2000 May 1;40(1):69-75.
Bolt S, Routledge E, Lloyd I, Chatenoud L, Pope H, Gorman SD, Clark M, Waldmann H. The generation of a humanized, non-mitogenic CD3 monoclonal antibody which retains in vitro immunosuppressive properties. Eur J Immunol. 1993 Feb;23(2):403-11.
Strain Strategy
The mouse Cd3e, Cd3d, and Cd3g genes which encode the three components of the CD3 complex, Cd3ε, Cd3δ, and Cd3γ, were replaced by the corresponding human homologous genes.
Figure 1. Diagram of the gene editing strategy for the generation of BALB/c-hCD3 mice.
Application Area
Research on the immune system;
T cell activation and antigen recognition studies;
Research on immunosuppressive therapy for autoimmune diseases;
Development and evaluation of CD3-targeted drugs.
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