InVivoMAb anti-mouse CD205 (DEC-205)
Product Details
The NLDC-145 monoclonal antibody reacts with CD205 also known as DEC-205. CD205 is a c-type lectin receptor that is highly expressed on immature dendritic cells and different epithelial cell types. It has been demonstrated extensively that targeting antigens to DEC-205 by specific antibodyāantigen complexes leads to the efficient uptake and presentation of antigens on MHC I and MHC II complexes resulting in the activation of antigen-specific CD8+ and CD4+ T cells, respectively.Specifications
| Isotype | Rat IgG2a, Īŗ |
|---|---|
| Recommended Isotype Control(s) | InVivoMAb rat IgG2a isotype control, anti-trinitrophenol |
| Recommended Dilution Buffer | InVivoPure pH 7.0 Dilution Buffer |
| Conjugation | This product is unconjugated. Conjugation is available via our Antibody Conjugation Services. |
| Immunogen | Mouse lymph node tissue |
| Reported Applications |
in vivo antigen-targeting to DEC-205 in vitro antigen-targeting to DEC-205 Immunohistochemistry (frozen) Immunofluorescence Flow cytometry |
| Formulation |
PBS, pH 7.0 Contains no stabilizers or preservatives |
| Endotoxin |
<2EU/mg (<0.002EU/Ī¼g) Determined by LAL gel clotting assay |
| Purity |
>95% Determined by SDS-PAGE |
| Sterility | 0.2 Āµm filtration |
| Production | Purified from cell culture supernatant in an animal-free facility |
| Purification | Protein G |
| Molecular Weight | 150 kDa |
| Storage | The antibody solution should be stored at the stock concentration at 4Ā°C. Do not freeze. |
Recommended Products
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Recommended Isotype Control(s)
InVivoMAb rat IgG2a isotype control, anti-trinitrophenol
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Recommended Dilution Buffer
InVivoPure pH 7.0 Dilution Buffer
in vivo antigen-targeting to DEC-205
Wadwa M, Klopfleisch R, Buer J, Westendorf AM. (2016). "Targeting Antigens to Dec-205 on Dendritic Cells Induces Immune Protection in Experimental Colitis in Mice" Eur J Microbiol Immunol (Bp) 6(1):1-8. PubMed
The endocytotic c-type lectin receptor DEC-205 is highly expressed on immature dendritic cells. In previous studies, it was shown that antigen-targeting to DEC-205 is a useful tool for the induction of antigen-specific Foxp3(+) regulatory T cells and thereby can prevent inflammatory processes. However, whether this approach is sufficient to mediate tolerance in mucosal tissues like the gut is unknown. In this study, we established a new mouse model in which the adoptive transfer of naive hemagglutinin (HA)-specific CD4(+)Foxp3(-) T cells into VILLIN-HA transgenic mice leads to severe colitis. To analyze if antigen-targeting to DEC-205 could protect against inflammation of the gut, VILLIN-HA transgenic mice were injected with an antibody-antigen complex consisting of the immunogenic HA110-120 peptide coupled to an Ī±-DEC-205 antibody (DEC-HA) before adoptive T cell transfer. DEC-HA-treated mice showed significantly less signs of intestinal inflammation as was demonstrated by reduced loss of body weight and histopathology in the gut. Strikingly, abrogated intestinal inflammation was mediated via the conversion of naive HA-specific CD4(+)Foxp3(-) T cells into HA-specific CD4(+)Foxp3(+) regulatory T cells. In this study, we provide evidence that antigen-targeting to DEC-205 can be utilized for the induction of tolerance in mucosal organs that are confronted with large numbers of exogenous antigens.
Flow Cytometry
Mitsuoka N, Iwagaki H, Ozaki M, Sheng SD, Sadamori H, Matsukawa H, Morimoto Y, Matsuoka J, Tanaka N, Yagi T. (2004). "The impact of portal infusion with donor-derived bone marrow cells and intracellular cytokine expression of graft-infiltrating lymphocytes on the graft survival in rat small bowel transplant model" Transpl Immunol 13(3):155-60. PubMed
Intraportal administration of alloantigen is reported to reduce antigen-specific immune responses, although the underlying mechanisms for the reduced immunological reactions, especially those of the graft, are poorly understood. We examined intracellular cytokine production by graft-infiltrating lymphocytes (GILs) and peripheral blood lymphocytes (PBLs) to elucidate the underlying mechanisms of beneficial effects on intraportal infusion of donor cells in rat small bowel transplantation (SBT).
in vitro antigen-targeting to DEC-205
Bonifaz L, Bonnyay D, Mahnke K, Rivera M, Nussenzweig MC, Steinman RM. (2002). "Efficient targeting of protein antigen to the dendritic cell receptor DEC-205 in the steady state leads to antigen presentation on major histocompatibility complex class I products and peripheral CD8+ T cell tolerance" J Exp Med 196(12):1627-38. PubMed
To identify endocytic receptors that allow dendritic cells (DCs) to capture and present antigens on major histocompatibility complex (MHC) class I products in vivo, we evaluated DEC-205, which is abundant on DCs in lymphoid tissues. Ovalbumin (OVA) protein, when chemically coupled to monoclonal alphaDEC-205 antibody, was presented by CD11c+ lymph node DCs, but not by CD11c- cells, to OVA-specific, CD4+ and CD8+ T cells. Receptor-mediated presentation was at least 400 times more efficient than unconjugated OVA and, for MHC class I, the DCs had to express transporter of antigenic peptides (TAP) transporters. When alphaDEC-205:OVA was injected subcutaneously, OVA protein was identified over a 4-48 h period in DCs, primarily in the lymph nodes draining the injection site. In vivo, the OVA protein was selectively presented by DCs to TCR transgenic CD8+ cells, again at least 400 times more effectively than soluble OVA and in a TAP-dependent fashion. Targeting of alphaDEC-205:OVA to DCs in the steady state initially induced 4-7 cycles of T cell division, but the T cells were then deleted and the mice became specifically unresponsive to rechallenge with OVA in complete Freund's adjuvant. In contrast, simultaneous delivery of a DC maturation stimulus via CD40, together with alphaDEC-205:OVA, induced strong immunity. The CD8+ T cells responding in the presence of agonistic alphaCD40 antibody produced large amounts of interleukin 2 and interferon gamma, acquired cytolytic function in vivo, emigrated in large numbers to the lung, and responded vigorously to OVA rechallenge. Therefore, DEC-205 provides an efficient receptor-based mechanism for DCs to process proteins for MHC class I presentation in vivo, leading to tolerance in the steady state and immunity after DC maturation.
Immunohistochemistry (frozen), Immunofluorescence
Kraal G, Breel M, Janse M, Bruin G. (1986). "Langerhans' cells, veiled cells, and interdigitating cells in the mouse recognized by a monoclonal antibody" J Exp Med 163(4):981-97. PubMed
An mAb, NLDC-145, is described that specifically reacts with a group of nonlymphoid dendritic cells including Langerhans cells (LC), veiled cells (VC), and interdigitating cells (IDC). The antibody does not react with precursor cells in bone marrow and blood. Macrophages are not stained by the antibody, but a subpopulation of Ia+ peritoneal exudate cells is recognized. Possible relationships of the various nonlymphoid dendritic cell (NLDC) types are discussed.