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anti b7 h3 antibody  (R&D Systems)


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    Structured Review

    R&D Systems anti b7 h3 antibody
    A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, <t>anti-B7-H3</t> CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.
    Anti B7 H3 Antibody, supplied by R&D Systems, used in various techniques. Bioz Stars score: 95/100, based on 101 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/b7+h3/Human+B7-H3+Antibody/bio_rxiv__64898__2026__04__15__718753-197-2-5
    Average 95 stars, based on 101 article reviews
    anti b7 h3 antibody - by Bioz Stars, 2026-10
    95/100 stars

    Images

    1) Product Images from "Transcription Factor–Mediated Reprogramming of Cancer-Associated Fibroblasts Reveals Targetable Vulnerabilities in Solid Tumors"

    Article Title: Transcription Factor–Mediated Reprogramming of Cancer-Associated Fibroblasts Reveals Targetable Vulnerabilities in Solid Tumors

    Journal: bioRxiv

    doi: 10.64898/2026.04.15.718753

    A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, anti-B7-H3 CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.
    Figure Legend Snippet: A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, anti-B7-H3 CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.

    Techniques Used: Immunocytochemistry, Expressing, Fluorescence, Co-Culture Assay

    Stromal Effects on CAR T-Cell Activity in 3D-Bioprinted PC-3 Spheroids. A. Representative images of stromal populations influencing anti-B7-H3 CAR T-cell killing function . B. PC-3 spheroid with pCAF/rpNFs interaction with CAR-T cells monitored by IncuCyte imaging system. C. The killing effects of B7-H3 CAR T cells on PC-3 cells in day 5 compared to day 1. D . Imaging of live cells at different time.
    Figure Legend Snippet: Stromal Effects on CAR T-Cell Activity in 3D-Bioprinted PC-3 Spheroids. A. Representative images of stromal populations influencing anti-B7-H3 CAR T-cell killing function . B. PC-3 spheroid with pCAF/rpNFs interaction with CAR-T cells monitored by IncuCyte imaging system. C. The killing effects of B7-H3 CAR T cells on PC-3 cells in day 5 compared to day 1. D . Imaging of live cells at different time.

    Techniques Used: Activity Assay, Imaging

    Related Articles

    Immunohistochemistry:

    Article Title: A clinicopathological analysis of supratentorial ependymoma, ZFTA fusion-positive: utility of immunohistochemical detection of CDKN2A alterations and characteristics of the immune microenvironment.
    Article Snippet: .. IHC was performed on 3–4-μm-thick sections from formalin-fixed, paraffin-embedded (FFPE) tissue blocks as follows: the primary antibodies used included those for CD3 (PS1, 1: 100, Novocastra, Newcastle Upon Tyne, UK), CD4 (1F6, 1: 40, Novocastra, Newcastle Upon Tyne, UK), CD8 (C8/144B, 1: 50, Dako, Santa Clara, CA, USA), CD20 (L26, 1: 100, Dako, Santa Clara, CA, USA), MTAP (2G4, 1: 200, 1 3 Abnova, Taipei, Taiwan), p16 (G175-405, 1: 10, BD Biosciences, Franklin Lakes, NJ, USA), CD204 (SRA-E5, 1: 25, Trans Genic Inc., Fukuoka, Japan), Iba-1 (013-27691, 1: 1000, Fujifilm Wako, Osaka, Japan), NFκB p65 (D14E12, 1:400, Cell Signaling Technology, Inc., Danvers, MA, USA), and B7-H3 (AF1027, 1: 200, R&D systems, Minneapolis, MN, USA). .. In the present study, two types of PD-L1 antibodies were used: PD-L1 (28-8, 1:200, Abcam, Cambridge, UK) and PD-L1 (E1L3N, 1:300, Cell Signaling Technology, Inc., Danvers, MA, USA).

    Article Title: Correlation of expression of Major Vault Protein with androgen receptor and immune checkpoint protein B7-H3, and with poor prognosis in prostate cancer.
    Article Snippet: .. Immunohistochemistry (IHC) was carried out using the following primary antibodies: MVP (Abcam [1032], ab14562), dilution: 1:60; PTEN (Merck Millipore, clone 6H2.1), dilution 1:100; B7-H3 (R&D, AF1027), dilution: 1:2000; and AR (SP107 ready to use, Ventana). ..

    Article Title: A clinicopathological analysis of supratentorial ependymoma, ZFTA fusion-positive: utility of immunohistochemical detection of CDKN2A alterations and characteristics of the immune microenvironment
    Article Snippet: .. IHC was performed on 3–4-μm-thick sections from formalin-fixed, paraffin-embedded (FFPE) tissue blocks as follows: the primary antibodies used included those for CD3 (PS1, 1: 100, Novocastra, Newcastle Upon Tyne, UK), CD4 (1F6, 1: 40, Novocastra, Newcastle Upon Tyne, UK), CD8 (C8/144B, 1: 50, Dako, Santa Clara, CA, USA), CD20 (L26, 1: 100, Dako, Santa Clara, CA, USA), MTAP (2G4, 1: 200, Abnova, Taipei, Taiwan), p16 (G175-405, 1: 10, BD Biosciences, Franklin Lakes, NJ, USA), CD204 (SRA-E5, 1: 25, Trans Genic Inc., Fukuoka, Japan), Iba-1 (013-27691, 1: 1000, Fujifilm Wako, Osaka, Japan), NFκB p65 (D14E12, 1:400, Cell Signaling Technology, Inc., Danvers, MA, USA), and B7-H3 (AF1027, 1: 200, R&D systems, Minneapolis, MN, USA). .. In the present study, two types of PD-L1 antibodies were used: PD-L1 (28-8, 1:200, Abcam, Cambridge, UK) and PD-L1 (E1L3N, 1:300, Cell Signaling Technology, Inc., Danvers, MA, USA).

    Formalin-fixed Paraffin-Embedded:

    Article Title: A clinicopathological analysis of supratentorial ependymoma, ZFTA fusion-positive: utility of immunohistochemical detection of CDKN2A alterations and characteristics of the immune microenvironment.
    Article Snippet: .. IHC was performed on 3–4-μm-thick sections from formalin-fixed, paraffin-embedded (FFPE) tissue blocks as follows: the primary antibodies used included those for CD3 (PS1, 1: 100, Novocastra, Newcastle Upon Tyne, UK), CD4 (1F6, 1: 40, Novocastra, Newcastle Upon Tyne, UK), CD8 (C8/144B, 1: 50, Dako, Santa Clara, CA, USA), CD20 (L26, 1: 100, Dako, Santa Clara, CA, USA), MTAP (2G4, 1: 200, 1 3 Abnova, Taipei, Taiwan), p16 (G175-405, 1: 10, BD Biosciences, Franklin Lakes, NJ, USA), CD204 (SRA-E5, 1: 25, Trans Genic Inc., Fukuoka, Japan), Iba-1 (013-27691, 1: 1000, Fujifilm Wako, Osaka, Japan), NFκB p65 (D14E12, 1:400, Cell Signaling Technology, Inc., Danvers, MA, USA), and B7-H3 (AF1027, 1: 200, R&D systems, Minneapolis, MN, USA). .. In the present study, two types of PD-L1 antibodies were used: PD-L1 (28-8, 1:200, Abcam, Cambridge, UK) and PD-L1 (E1L3N, 1:300, Cell Signaling Technology, Inc., Danvers, MA, USA).

    Article Title: A clinicopathological analysis of supratentorial ependymoma, ZFTA fusion-positive: utility of immunohistochemical detection of CDKN2A alterations and characteristics of the immune microenvironment
    Article Snippet: .. IHC was performed on 3–4-μm-thick sections from formalin-fixed, paraffin-embedded (FFPE) tissue blocks as follows: the primary antibodies used included those for CD3 (PS1, 1: 100, Novocastra, Newcastle Upon Tyne, UK), CD4 (1F6, 1: 40, Novocastra, Newcastle Upon Tyne, UK), CD8 (C8/144B, 1: 50, Dako, Santa Clara, CA, USA), CD20 (L26, 1: 100, Dako, Santa Clara, CA, USA), MTAP (2G4, 1: 200, Abnova, Taipei, Taiwan), p16 (G175-405, 1: 10, BD Biosciences, Franklin Lakes, NJ, USA), CD204 (SRA-E5, 1: 25, Trans Genic Inc., Fukuoka, Japan), Iba-1 (013-27691, 1: 1000, Fujifilm Wako, Osaka, Japan), NFκB p65 (D14E12, 1:400, Cell Signaling Technology, Inc., Danvers, MA, USA), and B7-H3 (AF1027, 1: 200, R&D systems, Minneapolis, MN, USA). .. In the present study, two types of PD-L1 antibodies were used: PD-L1 (28-8, 1:200, Abcam, Cambridge, UK) and PD-L1 (E1L3N, 1:300, Cell Signaling Technology, Inc., Danvers, MA, USA).

    Western Blot:

    Article Title: NR1D1 ‐transactivated lncRNA NUTM2A‐AS1 promotes chemoresistance and immune evasion in neuroblastoma via inhibiting B7‐H3 degradation
    Article Snippet: Protein signals were visualized using a chemiluminescence chromogenic substrate (Beyotime). .. Antibodies for western blot analysis are as follows: B7‐H3 (R&D Systems, #AF1027, 1:250) and GAPDH (Abcam, #EPR16891, 1:10000). ..

    Article Title: Impact of B7-H3 expression on metastasis, immune exhaustion and JAK/STAT and PI3K/AKT pathways in clear cell renal cell carcinoma
    Article Snippet: Total cell lysates were obtained lysing cells in the M-PER mammalian protein extraction reagent (Thermo Fisher Scientific) supplemented with phosphatase and protease inhibitor cocktails (PhosSTOP and cOmplete; Roche). .. Immunoblot analysis of B7-H3 (anti-B7-H3 AF1027, 1:500, R&D systems), pAKT (anti-pAKT #9271, 1:1000, Cell Signaling), α-tubulin (anti-α-tubulin DM1A, 1:5000, Merck Millipore), and GAPDH (anti-GAPDH 6C5, sc-32233, 1:500, Santa Cruz Biotechnology) was performed in 10% SDS-PAGE gels as previously described.41 .. Caki-1 and 786-O cells were plated in 96 well plates (Corning), transfected with siRNAs, and treated the following day with the TKI axitinib (10 μM, Selleck Chemicals).

    Article Title: Impact of B7-H3 expression on metastasis, immune exhaustion and JAK/STAT and PI3K/AKT pathways in clear cell renal cell carcinoma
    Article Snippet: Total cell lysates were obtained lysing cells in the M-PER mammalian protein extraction reagent (Thermo Fisher Scientific) supplemented with phosphatase and protease inhibitor cocktails (PhosSTOP and cOmplete; Roche). .. Immunoblot analysis of B7-H3 (anti-B7-H3 AF1027, 1:500, R&D systems), pAKT (anti-pAKT #9271, 1:1000, Cell Signaling), α-tubulin (anti-α-tubulin DM1A, 1:5000, Merck Millipore), and GAPDH (anti-GAPDH 6C5, sc-32233, 1:500, Santa Cruz Biotechnology) was performed in 10% SDS-PAGE gels as previously described. .. Caki-1 and 786-O cells were plated in 96 well plates (Corning), transfected with siRNAs, and treated the following day with the TKI axitinib (10 μM, Selleck Chemicals).

    SDS Page:

    Article Title: Impact of B7-H3 expression on metastasis, immune exhaustion and JAK/STAT and PI3K/AKT pathways in clear cell renal cell carcinoma
    Article Snippet: Total cell lysates were obtained lysing cells in the M-PER mammalian protein extraction reagent (Thermo Fisher Scientific) supplemented with phosphatase and protease inhibitor cocktails (PhosSTOP and cOmplete; Roche). .. Immunoblot analysis of B7-H3 (anti-B7-H3 AF1027, 1:500, R&D systems), pAKT (anti-pAKT #9271, 1:1000, Cell Signaling), α-tubulin (anti-α-tubulin DM1A, 1:5000, Merck Millipore), and GAPDH (anti-GAPDH 6C5, sc-32233, 1:500, Santa Cruz Biotechnology) was performed in 10% SDS-PAGE gels as previously described.41 .. Caki-1 and 786-O cells were plated in 96 well plates (Corning), transfected with siRNAs, and treated the following day with the TKI axitinib (10 μM, Selleck Chemicals).

    Article Title: Impact of B7-H3 expression on metastasis, immune exhaustion and JAK/STAT and PI3K/AKT pathways in clear cell renal cell carcinoma
    Article Snippet: Total cell lysates were obtained lysing cells in the M-PER mammalian protein extraction reagent (Thermo Fisher Scientific) supplemented with phosphatase and protease inhibitor cocktails (PhosSTOP and cOmplete; Roche). .. Immunoblot analysis of B7-H3 (anti-B7-H3 AF1027, 1:500, R&D systems), pAKT (anti-pAKT #9271, 1:1000, Cell Signaling), α-tubulin (anti-α-tubulin DM1A, 1:5000, Merck Millipore), and GAPDH (anti-GAPDH 6C5, sc-32233, 1:500, Santa Cruz Biotechnology) was performed in 10% SDS-PAGE gels as previously described. .. Caki-1 and 786-O cells were plated in 96 well plates (Corning), transfected with siRNAs, and treated the following day with the TKI axitinib (10 μM, Selleck Chemicals).

    Staining:

    Article Title: Chimeric antigen receptor polypeptides and methods of using same
    Article Snippet: Materials Asunaprevir (ASV), danoprevir (DPV), simeprevir (SPV), and grazoprevir (GPV) were purchased from ApexBio. .. Cell surface markers were stained with mouse monoclonal antibodies targeting PD-1 (PE-Cy7, eBioscience), LAG3 (PE, eBioscience), Tim-3 (BV 510, BioLegend), and B7-H3 (PE, R&D Systems). .. CAR molecules were stained with recombinant B7-H3 Fc (R&D Systems), protein L (Pierce Protein Biology), 1A7 anti-idiotype antibody, or FMC63 anti-idiotype antibody 136.20.1 conjugated in house using DyLight 650 Antibody Labeling Kit (Thermo Fisher).

    Bioprocessing:

    Article Title: Chimeric antigen receptor polypeptides and methods of using same
    Article Snippet: Materials Asunaprevir (ASV), danoprevir (DPV), simeprevir (SPV), and grazoprevir (GPV) were purchased from ApexBio. .. Cell surface markers were stained with mouse monoclonal antibodies targeting PD-1 (PE-Cy7, eBioscience), LAG3 (PE, eBioscience), Tim-3 (BV 510, BioLegend), and B7-H3 (PE, R&D Systems). .. CAR molecules were stained with recombinant B7-H3 Fc (R&D Systems), protein L (Pierce Protein Biology), 1A7 anti-idiotype antibody, or FMC63 anti-idiotype antibody 136.20.1 conjugated in house using DyLight 650 Antibody Labeling Kit (Thermo Fisher).



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    R&D Systems anti b7 h3 antibody
    A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, <t>anti-B7-H3</t> CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.
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    Image Search Results


    SIRT1 acts as a downstream regulator of CD276 in mediating E-Cad. (A) The expression of SIRT1 was analyzed by western blotting in HepLi5, SNU-449 and 3B cell lines under sparse or confluent conditions. (B) The expression of SIRT1 in 449-OX cells was analyzed by western blotting under three conditions: sparse, confluent, and confluent with additional treatment of LY294002. (C) The expression of SIRT1 was analyzed by western blotting in 3B-KD cells under sparse and confluent conditions. 3B, Hep 3B2.1-7; 449-OX, CD276-ovexpressing SNU-449 cells; Li5, HepLi5; 449, SNU-449; 3B, Hep 3B2.1-7; S, sparse cultures; C, confluent cultures; LY, LY294002; si-NC, small interfering-negative control; 3B-KD, CD276-knockdown Hep 3B2.1-7 cells.

    Journal: Molecular and Clinical Oncology

    Article Title: A cascade via CD276/PI3K/SIRT1/E-Cad in overcoming contact inhibition of proliferation in hepatocellular carcinoma cells

    doi: 10.3892/mco.2026.2941

    Figure Lengend Snippet: SIRT1 acts as a downstream regulator of CD276 in mediating E-Cad. (A) The expression of SIRT1 was analyzed by western blotting in HepLi5, SNU-449 and 3B cell lines under sparse or confluent conditions. (B) The expression of SIRT1 in 449-OX cells was analyzed by western blotting under three conditions: sparse, confluent, and confluent with additional treatment of LY294002. (C) The expression of SIRT1 was analyzed by western blotting in 3B-KD cells under sparse and confluent conditions. 3B, Hep 3B2.1-7; 449-OX, CD276-ovexpressing SNU-449 cells; Li5, HepLi5; 449, SNU-449; 3B, Hep 3B2.1-7; S, sparse cultures; C, confluent cultures; LY, LY294002; si-NC, small interfering-negative control; 3B-KD, CD276-knockdown Hep 3B2.1-7 cells.

    Article Snippet: Membranes were then blocked with 5% non-fat milk for 1 h at room temperature and incubated overnight at 4 ̊C with primary antibodies: CD276 (1:1,000; cat. no. A17216), E-Cad (1:2,000; cat. no. A24874), p27 (1:1,000; cat. no. A0290), cyclin D1 (1:1,000; cat. no. A11310), GAPDH (1:50,000; cat. no. A19056) and SIRT1 (1:2,000; cat. no. A0230; all from ABclonal Biotech Co., Ltd.).

    Techniques: Expressing, Western Blot, Negative Control, Knockdown

    A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, anti-B7-H3 CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.

    Journal: bioRxiv

    Article Title: Transcription Factor–Mediated Reprogramming of Cancer-Associated Fibroblasts Reveals Targetable Vulnerabilities in Solid Tumors

    doi: 10.64898/2026.04.15.718753

    Figure Lengend Snippet: A. Immunocytochemistry (ICC) analysis demonstrates strong B7-H3 (CD276) expression on both PC-3 cancer cells and pCAFs, visualized by red fluorescence. B. In 2D co-culture assays, anti-B7-H3 CAR T cells exhibit antigen-specific cytotoxicity against PC-3 cells, with killing efficiency increasing across graded effector-to-target (E:T) ratios.

    Article Snippet: Primary human anti–B7-H3 antibody (AF1027, R&D Systems) was diluted in cold staining buffer (0.5 μg/μL; 2 μL per 100 μL reaction volume) and applied to cells for 20–30 min at 4 °C.

    Techniques: Immunocytochemistry, Expressing, Fluorescence, Co-Culture Assay

    Stromal Effects on CAR T-Cell Activity in 3D-Bioprinted PC-3 Spheroids. A. Representative images of stromal populations influencing anti-B7-H3 CAR T-cell killing function . B. PC-3 spheroid with pCAF/rpNFs interaction with CAR-T cells monitored by IncuCyte imaging system. C. The killing effects of B7-H3 CAR T cells on PC-3 cells in day 5 compared to day 1. D . Imaging of live cells at different time.

    Journal: bioRxiv

    Article Title: Transcription Factor–Mediated Reprogramming of Cancer-Associated Fibroblasts Reveals Targetable Vulnerabilities in Solid Tumors

    doi: 10.64898/2026.04.15.718753

    Figure Lengend Snippet: Stromal Effects on CAR T-Cell Activity in 3D-Bioprinted PC-3 Spheroids. A. Representative images of stromal populations influencing anti-B7-H3 CAR T-cell killing function . B. PC-3 spheroid with pCAF/rpNFs interaction with CAR-T cells monitored by IncuCyte imaging system. C. The killing effects of B7-H3 CAR T cells on PC-3 cells in day 5 compared to day 1. D . Imaging of live cells at different time.

    Article Snippet: Primary human anti–B7-H3 antibody (AF1027, R&D Systems) was diluted in cold staining buffer (0.5 μg/μL; 2 μL per 100 μL reaction volume) and applied to cells for 20–30 min at 4 °C.

    Techniques: Activity Assay, Imaging