CD20 Recombinant Rabbit Monoclonal Antibody
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Catalog# IRS003
CD20 Recombinant Rabbit Monoclonal Antibody
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mIHC
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Human
概述
产品名称
CD20 Recombinant Rabbit Monoclonal Antibody
抗体类型
Recombinant Rabbit monoclonal Antibody
免疫原
Synthetic peptide within Human CD20 aa 210-297 (Cytoplasmic).
种属反应性
Human
验证应用
mIHC
阳性对照
Human tonsil tissue.
偶联
unconjugated
产品特性
形态
Liquid
浓度
1ug/ul
存放说明
Store at +4℃ after thawing. Aliquot store at -20℃. Avoid repeated freeze / thaw cycles.
存储缓冲液
PBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
亚型
IgG
纯化方式
Protein A affinity purified.
应用稀释度
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mIHC
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1:100. This antibody has been validated for multiplex staining with LUMINIRIS mTSA, supporting both multiplex and super-multiplex staining.
靶点
功能
The CD20 antigen is a membrane-embedded, non-glycosylated phosphoprotein, 33-37 kDa. CD20 functions as a Ca2+-permeable cation channel, involved in the regulation of B-cell activation, proliferation and differentiation. CD20 appears on the surface of the pre-B lymphocyte between the time of light chain rearrangement and expression of intact surface immunoglobulin and is lost just before terminal B-cell differentiation into plasma cells. CD20 is virtually specific for normal B-cells. A weak expression has been demonstrated in a subpopulation of T-cells, but not in any other cell type. CD20 is expressed in the large majority of cases of B-cell leukaemia/lymphoma. Early stage precursor B lymphoblastic leukaemia/lymphoma may be negative, and chronic lymphocytic leukaemia/small cell lymphoma may show a weak staining. Plasma cell neoplasms are as a rule CD20 negative. T-cell lymphomas are almost always negative, but CD20 has been demonstrated in few cases of various types of T-cell lymphoma. In Hodgkin lymphoma, the nodular lymphocyte-predominant subtype shows CD20 staining of L&H cells in most cases, while Reed-Sternberg cells in the other subtypes reveal CD20 positivity in about 40, albeit in a minority of neoplastic cells. Acute myeloid leukaemia is CD20 positive in few cases, while blastic transformation in chronic myeloid leukaemia is accompanied by CD20 positivity in about 30%. Thymoma may reveal CD20 positivity in a spindle cell component. In patients treated with retuximab (a humanized anti-CD20 antibody) for malignant B-cell lymphoma, the CD20 epitopes disappear (both in normal and neoplastic B-cells) as a result of down-modulation of CD20 m-RNA in the cells. This process is potentially reversible. Together with CD79a, CD20 is one of the most important markers for the identification of B-cell neoplasms as outlined above. Tonsil and appendix are appropriate controls: The mantle zone B-cells and the germinal centre B-cells must show a very strong staining reaction. No other cells should stain.
背景文献
1. Jiang D. et. al. Pyruvate dehydrogenase kinase 4-mediated metabolic reprogramming is involved in rituximab resistance in diffuse large B-cell lymphoma by affecting the expression of MS4A1/CD20. Cancer Sci. 2021 Sep
2. Pavlasova G. et. al. The regulation and function of CD20: an "enigma" of B-cell biology and targeted therapy. Haematologica. 2020 Jun
亚细胞定位
Cell membrane.
UNIPROT
别名
APY antibody
ATOPY antibody
B lymphocyte antigen CD20 antibody
B Lymphocyte Cell Surface Antigen B1 antibody
B-lymphocyte antigen CD20 antibody
B-lymphocyte cell-surface antigen B1 antibody
B-lymphocyte surface antigen B1 antibody
B1 antibody
Bp 35 antibody
Bp35 antibody
展开图片
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mIHC analysis of human tonsil tissue (Formalin/PFA-fixed paraffin-embedded sections) with Rabbit anti-CD20 antibody (IRS003) at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human tonsil tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD8, CD4 (IRS005), FOXP3, CD68 (IRS004), CD38 (IRS006), CD11c (IRS001), PD-L1, CD163 (IRS002) and CD20 (IRS003) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human lung cancer with brain metastasis tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD3, CD20 (IRS003), panCK (IRS010), CD68 (IRS004) and Ki67 antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human cervical cancer tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD8, CD20 (IRS003), FOXP3, CK19 (IRS011), PD-L1, CD4 (IRS005), CD163 (IRS002) and CD68 (IRS004) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human colorectal cancer tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD8, CD20 (IRS003), CD68 (IRS004), CD4 (IRS005) and panCK (IRS010) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human gastric cancer tissue (Formalin/PFA-fixed paraffin-embedded sections) with PD-L1, CD8, CD3, CD68 (IRS004), CD20 (IRS003) and panCK (IRS010) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human small cell lung cancer tissue (Formalin/PFA-fixed paraffin-embedded sections) with PD-L1, CD8, CD3, CD68 (IRS004), CD20 (IRS003) and panCK (IRS010) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human pancreatic cancer tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD3, CD68 (IRS004), CD20 (IRS003) and panCK (IRS010) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
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mIHC analysis of human tonsil tissue (Formalin/PFA-fixed paraffin-embedded sections) with CD56 (IRS026), CD68 (IRS004), CD163 (IRS002), panCK (IRS010) and CD20 (IRS003) antibody at 1/100 dilution. The immunostaining was performed with the IRISKit® HyperView mTSA Kit (MH900206). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 30 mins at 95℃. DAPI (blue) was used as a nuclear counter stain. Image acquisition was performed with Olympus VS200 Slide Scanner.
请注意: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
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