Description
CD276 (mouse)
All names and symbols: B7 homolog 3; B7H3; B7-H3; B7RP; B7RP-2; AU016588; 6030411F23Rik
| Host species | Rabbit |
| Clonality | Recombinant |
| Isotype | IgG, kappa, recombinant chimeric version of rat IgG1 clone MJ18 |
| Confirmed species reactivity | Mouse |
| Confirmed applications | ELISA, FC, enhancement CD8+ T-cell tumour infiltration, inhibition CD4+ T-cell proliferation |
| Aeonian Rating® | 90 |
| RRID | AB_2904612 |
Immunoassays
Enzyme-Linked ImmunoSorbent Assay (ELISA):
AE00324 to CD276 was successfully used antigen-coated microwells.
Binding curve of serially diluted B7-H3 Rabbit Recombinant Antibody AE00324 to microwells coated with 5 µg/ml mouse B7-H3-Fc fusion protein. HRP-mediated detection from secondary anti-rabbit antibody.
Flow Cytometry (FC):
The selectivity of the original clone MJ18 was confirmed by comparing transfectant L5178Y and P815 cell lines, each expressing a different member of the B7 protein family.
Nagashima O, Harada N, Usui Y, Yamazaki T, Yagita H, Okumura K, Takahashi K, Akiba H. B7-H3 contributes to the development of pathogenic Th2 cells in a murine model of asthma. J Immunol. 2008 Sep 15;181(6):4062-71. doi: 10.4049/jimmunol.181.6.4062. PMID: 18768862.
Biological Activity
Inhibition CD4+ T cell proliferation:
The original clone MJ18 was successfully used to inhibit the OVA323–339-induced proliferation of CD4+ T cells in the presence of bone marrow dendritic cells.
Nagashima O, Harada N, Usui Y, Yamazaki T, Yagita H, Okumura K, Takahashi K, Akiba H. B7-H3 contributes to the development of pathogenic Th2 cells in a murine model of asthma. J Immunol. 2008 Sep 15;181(6):4062-71. doi: 10.4049/jimmunol.181.6.4062. PMID: 18768862.
Enhancement of CD8+ T cell infiltration into tumours:
The original clone MJ18 was successfully used to block B7-H3, thus enhancing CD8+ T cells infiltration into pancraatic tumours in mice.
Yamato I, Sho M, Nomi T, Akahori T, Shimada K, Hotta K, Kanehiro H, Konishi N, Yagita H, Nakajima Y. Clinical importance of B7-H3 expression in human pancreatic cancer. Br J Cancer. 2009 Nov 17;101(10):1709-16. doi: 10.1038/sj.bjc.6605375. PMID: 19844235.
MJ18-specific most recent literature
Masemann D, Meissner R, Schied T, Lichty BD, Rapp UR, Wixler V, Ludwig S. Synergistic anti-tumor efficacy of oncolytic influenza viruses and B7-H3 immune- checkpoint inhibitors against IC-resistant lung cancers. Oncoimmunology. 2021 Feb 17;10(1):1885778. doi: 10.1080/2162402X.2021.1885778. PMID: 33643696.
Cheng N, Bei Y, Song Y, Zhang W, Xu L, Zhang W, Yang N, Bai X, Shu Y, Shen P. B7-H3 augments the pro-angiogenic function of tumor-associated macrophages and acts as a novel adjuvant target for triple-negative breast cancer therapy. Biochem Pharmacol. 2021 Jan;183:114298. doi: 10.1016/j.bcp.2020.114298. Epub 2020 Oct 22. PMID: 33153969.
Mao L, Fan TF, Wu L, Yu GT, Deng WW, Chen L, Bu LL, Ma SR, Liu B, Bian Y, Kulkarni AB, Zhang WF, Sun ZJ. Selective blockade of B7-H3 enhances antitumour immune activity by reducing immature myeloid cells in head and neck squamous cell carcinoma. J Cell Mol Med. 2017 Sep;21(9):2199-2210. doi: 10.1111/jcmm.13143. PMID: 28401653.
| Expiration | Integrity warranted for 24 months after purchase when handled and stored according to instructions, see below. |
| Storage instructions | Avoid repeated freeze/thaw cycles. For long term storage, keep small aliquots at -20°C or -80°C and keep one aliquot at 4°C for daily experimentations. Azide will preserve antibody at 4°C for 6-12 months, when kept away from direct sun light. |
| Warranty | This product is only warranted for the specifications as described in this product sheet and only when the product is handled and stored according to instructions. User should validate this antibody in the application and tissue/cell type as required, after confirmation of integrity upon receipt is obtained by reproducing the performance as described below. Should such confirmation not be attempted, any warranty is void. In case of non-conformance, user needs to contact us immediately for replacement or refund. |
| Liability | This product is for in vitro research use only. Any other applications, such as diagnostics or therapeutics, or in vivo experiments, and the validation of this product therein, are solely at the responsibility of the buyer/user. |
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