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Half of the participants responded positively to the treatment, aimed at triggering macrophages to engulf cancer cells, the researchers reported. 2016-11-15 · The anti-CD47 immunotherapy agent SRF231 has shown early promise as a treatment for a number of cancers, with potent anti-tumor activity, both as a monotherapy and in combination with standard of care therapies, by inducing macrophage-mediated immune responses. Preclinical data on SRF231 was Introduction: CD47 is an anti-phagocytic ('don't eat me') signal overexpressed in many malignant diseases. It acts as myeloid immune checkpoint and thus has prognostic and therapeutic implications. Areas covered : This review presents and discusses the currently available data on the prognostic role and therapeutic value of CD47 in gastrointestinal tumors. The CD47 gene is located on chromosome 3q13 and encodes an integrin-associated protein. CD47 is an important “self-labeling” molecule in the immunoglobulin superfamily that contains an immunoglobulin variable-like amino-terminal domain, five transmembrane domains, and one carboxy-terminal intracellular tail (34, 35).

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by Phil Taylor |. Jan 12, 2018 8:11am. The Stanford University spinout has  Feb 14, 2017 The success of combination treatment including surgery and CD47 blocking immunotherapy is dependent on expression of CD47 in tumor cells. Jul 23, 2014 Immunotherapy – BLTA:HVEM, CD47:SIRPα in drug discovery.

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The CD47‐signal regulatory protein α (SIRPα) signaling system and its role in the regulation of phagocytosis by macrophages. A, SIRPα is a transmembrane protein that contains 3 Ig‐like domains (1 V‐like and 2 C1‐like Ig domains) in its NH 2 ‐terminal extracellular region and 2 key tyrosine phosphorylation sites in its COOH‐terminal cytoplasmic region. NIH investigators hope CD47 study leads to broad-spectrum infectious diseases immunotherapy Colorized scanning electron micrograph of a cell (purple) infected with SARS-COV-2 virus particles (yellow), isolated from a patient sample.

Cd47 immunotherapy

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Cd47 immunotherapy

A combination of anti-CD47 antibodies with macrophage-triggering cytokines may promote macrophage recruitment in the tumor microenvironment and same time phagocytosis of cancer cells. Also, CD47/SIRPα Summit April 17th, 2019 1 Developing the Next Generation of Cancer Immunotherapy However, the antitumor efficacy of CD47-based immunotherapy relies on the near-complete blockade of CD47 in the tumor microenvironment (TME; Ingram et al., 2017). To specify the location of antitumor effects of gut microbiota that interacted with CD47 blockade, we used very low doses of antibiotic therapy inside tumor tissues. CD47-signal regulatory protein α signaling system and its application to cancer immunotherapy. Murata Y(1), Saito Y(1), Kotani T(1), Matozaki T(1). Author information: (1)Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan. generates T2 contrast on MR scans that can serve as an imaging biomarker for monitoring responses to CD47 immunotherapy Mohanty et al.

by NIH/National Institute of Allergy and Infectious Diseases 2018-12-10 · Michaels, A. D. et al. CD47 blockade as an adjuvant immunotherapy for resectable pancreatic cancer. Clin. Cancer Res. 24, 1415–1425 (2018). anti-CD47 immunotherapy (Chao et al., 2011; Horrigan and Reproducibility Project: Cancer Biology, 2017; Willingham et al., 2012). Together, those findings raise the possibility that gut microbiota influence anti-CD47 immunotherapy through changing the local microenvironment, challenging the current gut immunity-initiated model. Our study iden- However, the antitumor efficacy of CD47-based immunotherapy relies on the near-complete blockade of CD47 in the tumor microenvironment (TME; Ingram et al., 2017).
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50 Given that CD47 is widely expressed in various cancer types, it represents a potential and widely applicable … The success of combination immunotherapy involving CD47 blockade may thus depend not only on the specific checkpoint pathway targeted, but also on whether the tumor itself expresses the targeted receptor (e.g., PD-L1). Indeed, CD47 blockade with A4 did not synergize with αCTLA-4 in the 2020-03-06 CD47, an innate immune checkpoint inhibitor is suggested to be the most prominent ‘do not eat me’ signal expressed on the cancer cells surface. CD47 is expressed ubiquitously but significantly upregulated in several human malignancies including breast cancer, colon cancer, prostate cancer, ovarian cancer and hepatocellular carcinoma [ 1, 2 ]. Anti-CD47/PD-L1 immunotherapies aiming to enhance antitumor immunity are being intensively investigated and show promising results in cancer therapy; however, not all patients treated with these new drugs respond. Thus, developing new immunotherapy agents or combination treatments to enhance the efficacy of immunotherapy is an urgent challenge.

Areas covered : This review presents and discusses the currently available data on the prognostic role and therapeutic value of CD47 in gastrointestinal tumors.
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Recent clinical success of cancer immunotherapy has intensified interest in how tumors normally evade the immune response. Whether and how oncogenes contribute to this process are not well understood. In a study of mice, Casey et al. found that the MYC oncogene, which is aberrantly activated in many human cancers, up-regulates the expression of genes encoding proteins that dampen the antitumor Blocking CD47 on MM cells with anti-CD47 mAbs enhanced MM phagocytosis and killing by macrophages, especially in 3DTEBM. These results suggest that anti-CD47 mAbs are applicable for MM treatment, and further studies are warranted to examine the effect of anti-CD47 mAbs as a novel checkpoint immunotherapy to target MM in vivo and in patients.

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Genom att utnyttja anti-CD47-antikroppsmedierad fagocytos av cancerceller av As such, NK cell-based immunotherapy holds a great promise for cancer  Immunotherapy improved 22 of 27 PM patients but had only transient beneficial and its binding partners, CD36 and CD47, in sporadic inclusion body myositis. x CD3 therapeutic bispecific antibody for bladder carcinoma immunotherapy.

Blocking CD47 triggers the recognition and elimination of cancer cells by the innate immunity.