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Bispecific antibody approach for EGFR-directed blockade of the CD47-SIRPα "don't eat me" immune checkpoint promotes neutrophil-mediated trogoptosis and enhances antigen cross-presentation.

作者信息

Hendriks Mark A J M, Ploeg Emily M, Koopmans Iris, Britsch Isabel, Ke Xiurong, Samplonius Douwe F, Helfrich Wijnand

机构信息

Department of Surgery, Laboratory for Translational Surgical Oncology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands.

Department of Immunotherapy and Gastrointestinal Oncology, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China.

出版信息

Oncoimmunology. 2020 Sep 29;9(1):1824323. doi: 10.1080/2162402X.2020.1824323.


DOI:10.1080/2162402X.2020.1824323
PMID:33299654
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7714490/
Abstract

Cancer cells overexpress CD47 to subvert phagocytic elimination and evade immunogenic processing of cancer antigens. Moreover, CD47 overexpression inhibits the antibody-dependent cellular phagocytosis (ADCP) and cytotoxicity (ADCC) activities of therapeutic anticancer antibodies. Consequently, CD47-blocking antibodies have been developed to overcome the immunoevasive activities of cancer cell-expressed CD47. However, the wide-spread expression of CD47 on normal cells forms a massive "antigen sink" that potentially limits sufficient tumor accretion of these antibodies. Additionally, a generalized blockade of CD47-SIRPα interaction may ultimately lead to unintended cross-presentation of self-antigens potentially promoting autoimmunity. To address these issues, we constructed a bispecific antibody, designated bsAb CD47xEGFR-IgG1, that blocks cancer cell surface-expressed CD47 in an EGFR-directed manner. BsAb CD47xEGFR-IgG1 selectively induced phagocytic removal of EGFR/CD47 cancer cells and endowed neutrophils with capacity to kill these cancer cells by trogoptosis; an alternate form of ADCC that disrupts the target cell membrane. Importantly, bsAb CD47xEGFR-IgG1 selectively enhanced phagocytosis and immunogenic processing of EGFR/CD47 cancers cells ectopically expressing viral protein CMVpp65. In conclusion, bsAb CD47xEGFR-IgG1 may be useful to reduce on-target/off-tumor effects of CD47-blocking approaches, enhance cancer cell elimination by trogoptosis, and promote adaptive anticancer immune responses.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/8d01bf9ecda6/KONI_A_1824323_F0004_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/afdce83ac102/KONI_A_1824323_F0001_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/eab3693ed573/KONI_A_1824323_F0002_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/2f5bd47ade61/KONI_A_1824323_F0003_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/8d01bf9ecda6/KONI_A_1824323_F0004_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/afdce83ac102/KONI_A_1824323_F0001_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/eab3693ed573/KONI_A_1824323_F0002_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/2f5bd47ade61/KONI_A_1824323_F0003_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b80a/7714490/8d01bf9ecda6/KONI_A_1824323_F0004_B.jpg

相似文献

[1]
Bispecific antibody approach for EGFR-directed blockade of the CD47-SIRPα "don't eat me" immune checkpoint promotes neutrophil-mediated trogoptosis and enhances antigen cross-presentation.

Oncoimmunology. 2020-9-29

[2]
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[3]
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[4]
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[5]
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[6]
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[7]
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[8]
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[10]
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[3]
Targeted CD47 checkpoint blockade using a mesothelin-directed antibody construct for enhanced solid tumor-specific immunotherapy.

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[4]
Bridging the gap with multispecific immune cell engagers in cancer and infectious diseases.

Cell Mol Immunol. 2024-7

[5]
Bispecific antibody CD73xEGFR more selectively inhibits the CD73/adenosine immune checkpoint on cancer cells and concurrently counteracts pro-oncogenic activities of CD73 and EGFR.

J Immunother Cancer. 2023-9

[6]
CD47 Expression in Circulating Tumor Cells and Circulating Tumor Microemboli from Non-Small Cell Lung Cancer Patients Is a Poor Prognosis Factor.

Int J Mol Sci. 2023-7-26

[7]
EGFR-selective activation of CD27 co-stimulatory signaling by a bispecific antibody enhances anti-tumor activity of T cells.

Front Immunol. 2023

[8]
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[9]
Tumor-selective Blockade of CD47 Signaling with CD47 Antibody for Enhanced Anti-tumor Activity in Malignant Meningioma.

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[10]
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本文引用的文献

[1]
Enhanced Expression of CD47 Is Associated With Off-Target Resistance to Tyrosine Kinase Inhibitor Gefitinib in NSCLC.

Front Immunol. 2020-1-31

[2]
CD47 blockade augmentation of trastuzumab antitumor efficacy dependent on antibody-dependent cellular phagocytosis.

JCI Insight. 2019-12-19

[3]
First-in-Human, First-in-Class Phase I Trial of the Anti-CD47 Antibody Hu5F9-G4 in Patients With Advanced Cancers.

J Clin Oncol. 2019-2-27

[4]
CD47 Blockade by Hu5F9-G4 and Rituximab in Non-Hodgkin's Lymphoma.

N Engl J Med. 2018-11-1

[5]
A novel bispecific antibody for EGFR-directed blockade of the PD-1/PD-L1 immune checkpoint.

Oncoimmunology. 2018-5-31

[6]
Neutrophils Kill Antibody-Opsonized Cancer Cells by Trogoptosis.

Cell Rep. 2018-6-26

[7]
CD20-selective inhibition of CD47-SIRPα "don't eat me" signaling with a bispecific antibody-derivative enhances the anticancer activity of daratumumab, alemtuzumab and obinutuzumab.

Oncoimmunology. 2017-10-31

[8]
Targeting CD47: the achievements and concerns of current studies on cancer immunotherapy.

J Thorac Dis. 2017-2

[9]
Pre-Clinical Development of a Humanized Anti-CD47 Antibody with Anti-Cancer Therapeutic Potential.

PLoS One. 2015-9-21

[10]
CD47 blockade triggers T cell-mediated destruction of immunogenic tumors.

Nat Med. 2015-10

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