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Amon R, Rosenfeld R, Perlmutter S, Grant OC, Yehuda S, Borenstein-Katz A, Alcalay R, Marshanski T, Yu H, Diskin R, Woods RJ, Chen X, Padler-Karavani V. Directed Evolution of Therapeutic Antibodies Targeting Glycosylation in Cancer. Cancers (Basel) 2020; 12:cancers12102824. [PMID: 33007970 PMCID: PMC7601599 DOI: 10.3390/cancers12102824] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/28/2020] [Accepted: 09/28/2020] [Indexed: 01/07/2023] Open
Abstract
Simple Summary We generated a platform for designing optimized functional therapeutic antibodies against cancer glycans. The target tumor-associated carbohydrate antigen is commonly expressed in colon and pancreatic cancers. We developed a system for selection of potent antibodies by yeast surface display against this carbohydrate antigen, then showed that elite clones have potent affinity, specificity, cancer cell binding, and therapeutic efficacy. These tools have broad utility for manipulating and engineering antibodies against carbohydrate antigens, and provide major innovative avenues of research in the field of cancer therapy and diagnostics. Abstract Glycosylation patterns commonly change in cancer, resulting in expression of tumor-associated carbohydrate antigens (TACA). While promising, currently available anti-glycan antibodies are not useful for clinical cancer therapy. Here, we show that potent anti-glycan antibodies can be engineered to acquire cancer therapeutic efficacy. We designed yeast surface display to generate and select for therapeutic antibodies against the TACA SLea (CA19−9) in colon and pancreatic cancers. Elite clones showed increased affinity, better specificity, improved binding of human pancreatic and colon cancer cell lines, and increased complement-dependent therapeutic efficacy. Molecular modeling explained the structural basis for improved antibody functionality at the molecular level. These new tools of directed molecular evolution and selection for effective anti-glycan antibodies, provide insights into the mechanisms of cancer therapy targeting glycosylation, and provide major methodological advances that are likely to open up innovative avenues of research in the field of cancer theranostics.
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Affiliation(s)
- Ron Amon
- Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv 69978, Israel; (R.A.); (S.P.); (S.Y.); (T.M.)
| | - Ronit Rosenfeld
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona 76100, Israel; (R.R.); (R.A.)
| | - Shahar Perlmutter
- Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv 69978, Israel; (R.A.); (S.P.); (S.Y.); (T.M.)
- The Azrieli Faculty of Medicine, Bar Ilan University, Safed 1311502, Israel
| | - Oliver C. Grant
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30606, USA; (O.C.G.); (R.J.W.)
| | - Sharon Yehuda
- Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv 69978, Israel; (R.A.); (S.P.); (S.Y.); (T.M.)
| | - Aliza Borenstein-Katz
- Department of Structural Biology, Weizmann Institute of Science, Rehovot 76100, Israel; (A.B.-K.); (R.D.)
| | - Ron Alcalay
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona 76100, Israel; (R.R.); (R.A.)
| | - Tal Marshanski
- Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv 69978, Israel; (R.A.); (S.P.); (S.Y.); (T.M.)
| | - Hai Yu
- Department of Chemistry, University of California, Davis, CA 95616, USA; (H.Y.); (X.C.)
| | - Ron Diskin
- Department of Structural Biology, Weizmann Institute of Science, Rehovot 76100, Israel; (A.B.-K.); (R.D.)
| | - Robert J. Woods
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30606, USA; (O.C.G.); (R.J.W.)
| | - Xi Chen
- Department of Chemistry, University of California, Davis, CA 95616, USA; (H.Y.); (X.C.)
| | - Vered Padler-Karavani
- Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv 69978, Israel; (R.A.); (S.P.); (S.Y.); (T.M.)
- Correspondence: ; Tel.: +972-3-640-6737
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Zanetta JP, Kuchler S, Lehmann S, Badache A, Maschke S, Thomas D, Dufourcq P, Vincendon G. Glycoproteins and lectins in cell adhesion and cell recognition processes. THE HISTOCHEMICAL JOURNAL 1992; 24:791-804. [PMID: 1478888 DOI: 10.1007/bf01046351] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The discovery of endogenous lectins having specific and high affinity for the carbohydrate portions of glycoproteins has opened up new directions in the field of cell adhesion and cell recognition. Two endogenous lectins, termed as CSL and R1, initially isolated from the rat cerebellum and having a wide distribution in mammalian tissues, have been shown to participate in essential mechanisms of cell adhesion. The membrane-bound lectin R1 seems to be involved in transient recognition between neuronal cells, followed by elimination of the glycoprotein ligands at the surface of the recognized cell. In contrast, CSL is a molecule involved in adhesion between various normal or transformed cells since it participates in the formation of tight junctions. The glycoprotein ligands recognized with higher affinity by these two lectins seem to possess a special structure which defines a sub-class of oncofetal HNK-1 glycans. The over-expression of the glycoprotein ligands of these lectins in most transformed cells provides new tools for understanding the underlying mechanism of malignant transformation as well as the generation of signals through cell adhesion.
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Affiliation(s)
- J P Zanetta
- Laboratoire de Neurobiologie Moléculaire des Interactions Cellulaires, CNRS UPR 416, Strasbourg, France
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Zanetta JP, Kuchler S, Lehmann S, Badache A, Maschke S, Marschal P, Dufourcq P, Vincendon G. Cerebellar lectins. INTERNATIONAL REVIEW OF CYTOLOGY 1992; 135:123-54. [PMID: 1618606 DOI: 10.1016/s0074-7696(08)62039-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- J P Zanetta
- Laboratoire de Neurobiologie Moléculaire des Interactions Cellulaires, Centre de Neurochimie du CNRS, Strasbourg, France
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