Polyclonal antibodies selectively inhibit tumor growth and invasion and synergize with immune checkpoint inhibitors
Carine Ciron, Pierre Morice, Juliette Rousse, Patrice Roy, Pierre-Joseph Royer, Olivier Gauthier, Sophie Brouard, Odile Duvaux, Firas Bassissi, Bernard Vanhove
TL;DR
Polyclonal antibodies can inhibit tumor growth and work well with immune checkpoint inhibitors to fight cancer.
Contribution
Glyco-humanized polyclonal antibodies show therapeutic potential and synergize with checkpoint inhibitors in multiple cancer models.
Findings
Polyclonal antibodies target tumors without harming healthy tissues.
They synergize with anti–PD-L1 to prevent metastases in cancer models.
Glyco-humanized pAb show efficacy in xenografted mice with human tumors.
Abstract
Heterologous polyclonal antibodies (pAb) were shown to possess oncolytic properties a century ago with reported clinical responses. More recent preclinical models confirmed pAb efficacy, though their ability to tackle complex target antigens reduces susceptibility to tumor escape. Owing to the recent availability of glyco-humanized pAb (GH-pAb) with acceptable clinical toxicology profile, we revisited use of pAb in oncology and highlighted their therapeutic potential against multiple cancer types. Murine antitumor pAb were generated after repeated immunization of rabbits with murine tumor cell lines from hepatocarcinoma, melanoma, and colorectal cancers. Antitumor pAb recognized and showed cytotoxicity against their targets without cross-reactivity with healthy tissues. In vivo, pAb are effective alone; moreover, these pAb synergize with immune checkpoint inhibitors like anti–PD-L1 in…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMonoclonal and Polyclonal Antibodies Research · Glycosylation and Glycoproteins Research · Immunotherapy and Immune Responses