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anti-CD137 stimulates anti-tumor response

anti-CD137 (4-1BB) agonistic mAb alone improves tumor infiltration and anti-tumor response in mice. Intratumoral Activation of 41BB Costimulatory Signals Enhances CD8 T Cell Expansion and Modulates Tumor-Infiltrating Myeloid Cells” Patrick Innamarato, Shari Pilon-Thomas, et al. (Oct 2020) J Immunol October 5, 2020, ji2000759; DOI: https://doi.org/10.4049/jimmunol.2000759. Related Ancell Products anti-human CD137 mAb clone 4B4-1     […]

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Chemical inhibitor of nSMase2 prevents EV release

“A novel and potent brain penetrant inhibitor of extracellular vesicle release” Camilo Rojas, Barbara Slusher, et al. 2019 Brit J Pharmacology 176: 3857-70. Doi: 10.1111/bph.14789. Using high throughput screening of 365,000 compounds, this research group from Johns Hopkins identified “PDDC”, a compound which penetrated brain tissue and inhibited release of murine astrocyte-derived EVs. Ancell anti-human

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CD47-SIRPalpha Blockade enhances Neutrophil Trogocytosis of tumor

Neutrophils enact lysis of antibody opsonized target tumor cells by utilizing the CD11b – CD18 interaction to form a cytotoxic synapse which leads to trogocytosis.  This process can be effectively blocked by blockade with either anti-CD11b or anti-CD18 mAbs, but is enhanced when SIRPa – CD47 blockade is employed. “Neutrophils Kill Antibody Opsonized Cancer Cells

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Blocking CD40-CD154 interaction with an antagonistic anti-CD40 mAb alleviates SLE symptoms in mice.

“Treatment with a CD40 Antagonist Antibody Reverses Severe Proteinuria and Loss of Saliva Production and Restores Glomerular Morphology in Murine Systemic Lupus Erythematosus” Stuart J, Stephen H Clarke, et al.  July 1, 2019 Journal of Immunology 203(1): 58-75.  Doi: htpps://doi.org.10.4049/jimmunol.1900043.   Relevant Ancell Products anti-human CD40 mAb Recombinant human CD40-muIg Recombinant human CD154-muCD8

Blocking CD40-CD154 interaction with an antagonistic anti-CD40 mAb alleviates SLE symptoms in mice. Read More »