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Abstract
A phagemid is a plasmid that contains the origin of replication and packaging signal of a filamentous phage. Following bacterial transformation, a phagemid can be replicated and amplified as a plasmid, using a double-stranded DNA origin of replication, or it can be replicated as single-stranded DNA for packaging into filamentous phage particles. The use of phagemids enables phage display of large proteins, such as antibody fragments. Phagemid pComb3 was among the first phage display vectors used for the generation and selection of antibody libraries in the 50-kDa Fab format, a monovalent proxy of natural antibodies. Affording a robust and versatile tool for more than three decades, phage display vectors of the pComb3 phagemid family have been widely used for the discovery, affinity maturation, and humanization of antibodies in Fab, scFv, and single-domain formats from naive, immune, and synthetic antibody repertoires. In addition, they have been used for broadening phage display to the mining of nonimmunoglobulin repertoires. This review examines conceptual, functional, and molecular features of the first-generation phage display vector pComb3 and its successors, pComb3H, pComb3X, and pC3C.
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Affiliation(s)
- Christoph Rader
- The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, USA
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Zhang YN, Wan XC, Tang Y, Chen Y, Zheng FH, Cui ZH, Zhang H, Zhou Z, Fang GM. Employing unnatural promiscuity of sortase to construct peptide macrocycle libraries for ligand discovery. Chem Sci 2024; 15:9649-9656. [PMID: 38939140 PMCID: PMC11206207 DOI: 10.1039/d4sc01992j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/11/2024] [Indexed: 06/29/2024] Open
Abstract
With the increasing attention paid to macrocyclic scaffolds in peptide drug development, genetically encoded peptide macrocycle libraries have become invaluable sources for the discovery of high-affinity peptide ligands targeting disease-associated proteins. The traditional phage display technique of constructing disulfide-tethered macrocycles by cysteine oxidation has the inherent drawback of reduction instability of the disulfide bond. Chemical macrocyclization solves the problem of disulfide bond instability, but the involved highly electrophilic reagents are usually toxic to phages and may bring undesirable side reactions. Here, we report a unique Sortase-mediated Peptide Ligation and One-pot Cyclization strategy (SPLOC) to generate peptide macrocycle libraries, avoiding the undesired reactions of electrophiles with phages. The key to this platform is to mine the unnatural promiscuity of sortase on the X residue of the pentapeptide recognition sequence (LPXTG). Low reactive electrophiles are incorporated into the X-residue side chain, enabling intramolecular cyclization with the cysteine residue of the phage-displayed peptide library. Utilizing the genetically encoded peptide macrocycle library constructed by the SPLOC platform, we found a high-affinity bicyclic peptide binding TEAD4 with a nanomolar KD value (63.9 nM). Importantly, the binding affinity of the bicyclic peptide ligand is 102-fold lower than that of the acyclic analogue. To our knowledge, this is the first time to mine the unnatural promiscuity of ligases to generate peptide macrocycles, providing a new avenue for the construction of genetically encoded cyclic peptide libraries.
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Affiliation(s)
- Yan-Ni Zhang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Xiao-Cui Wan
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Yang Tang
- Department of Medical Ultrasound, Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University Cancer Center, Tongji University School of Medicine Shanghai 200072 P. R. China
| | - Ying Chen
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Feng-Hao Zheng
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Zhi-Hui Cui
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Hua Zhang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Zhaocai Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University Shanghai 200438 P. R. China
| | - Ge-Min Fang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
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Zhang YW, Zheng N, Chou DHC. Serine-mediated hydrazone ligation displaying insulin-like peptides on M13 phage pIII. Org Biomol Chem 2023; 21:8902-8909. [PMID: 37905463 DOI: 10.1039/d3ob01487h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Phage display has emerged as a tool for the discovery of therapeutic antibodies and proteins. However, the effective display and engineering of structurally complex proteins, such as insulin, pose significant challenges due to the sequence of insulin, which is composed of two peptide chains linked by three disulfide bonds. In this study, we developed a new approach for the display of insulin-like peptides on M13 phage pIII, employing N-terminal serine-mediated hydrazone ligation. The insulin-displaying phage retains the biological binding affinity of human insulin. To address the viability loss after ligation, we introduced a trypsin-cleavable spacer on pIII, enabling insulin-displayed phage library selection. This method offers a general pathway for the display of structurally complex proteins on pIII, enhancing the practicality of selecting chemically modified phage libraries and opening avenues for the engineering of new insulin analogs for the treatment of diabetes by using phage display.
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Affiliation(s)
- Yi Wolf Zhang
- Department of Pediatrics, Division of Diabetes and Endocrinology, Stanford University, Palo Alto, CA 94304, USA.
- Department of Biochemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Nan Zheng
- Department of Biochemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Danny Hung-Chieh Chou
- Department of Pediatrics, Division of Diabetes and Endocrinology, Stanford University, Palo Alto, CA 94304, USA.
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Cyr MG, Wilson HD, Spierling AL, Chang J, Peng H, Steinberger P, Rader C. Concerted Antibody and Antigen Discovery by Differential Whole-cell Phage Display Selections and Multi-omic Target Deconvolution. J Mol Biol 2023; 435:168085. [PMID: 37019174 PMCID: PMC10148915 DOI: 10.1016/j.jmb.2023.168085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023]
Abstract
Monoclonal antibody (mAb)-based biologics are well established treatments of cancer. Antibody discovery campaigns are typically directed at a single target of interest, which inherently limits the possibility of uncovering novel antibody specificities or functionalities. Here, we present a target-unbiased approach for antibody discovery that relies on generating mAbs against native target cell surfaces via phage display. This method combines a previously reported method for improved whole-cell phage display selections with next-generation sequencing analysis to efficiently identify mAbs with the desired target cell reactivity. Applying this method to multiple myeloma cells yielded a panel of >50 mAbs with unique sequences and diverse reactivities. To uncover the identities of the cognate antigens recognized by this panel, representative mAbs from each unique reactivity cluster were used in a multi-omic target deconvolution approach. From this, we identified and validated three cell surface antigens: PTPRG, ICAM1, and CADM1. PTPRG and CADM1 remain largely unstudied in the context of multiple myeloma, which could warrant further investigation into their potential as therapeutic targets. These results highlight the utility of optimized whole-cell phage display selection methods and could motivate further interest in target-unbiased antibody discovery workflows.
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Affiliation(s)
- Matthew G Cyr
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL, USA; Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL, USA. https://twitter.com/CyrialDilutions
| | - Henry D Wilson
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL, USA
| | - Anna-Lena Spierling
- Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL, USA
| | - Jing Chang
- Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL, USA
| | - Haiyong Peng
- Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL, USA
| | - Peter Steinberger
- Institute of Immunology, Medical University of Vienna, Vienna, Austria
| | - Christoph Rader
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL, USA; Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL, USA.
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Min B, Yoo M, Kim H, Cho M, Nam DH, Yoon Y. Semi-Automated Cell Panning for Efficient Isolation of FGFR3-Targeting Antibody. Int J Mol Sci 2021; 22:ijms22126240. [PMID: 34207911 PMCID: PMC8229736 DOI: 10.3390/ijms22126240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 12/24/2022] Open
Abstract
Phage display technology is a widely used practical tool for isolating binding molecules against the desired targets in phage libraries. In the case of targeting the membrane protein with its natural conformation, conventional bio-panning has limitations on the efficient screening of the functionally relevant antibodies. To enrich the single-chain variable fragment (scFv) pools for recognizing the natural conformation of the membrane targets, the conventional bio-panning and screening process was modified to include the semi-automated cell panning protocol. Using FGFR3-overexpressing patient-derived cancer cells, biotin-X-DHPE was introduced and coupled to Streptavidin-coated magnetic beads for use in the solution-phage bio-panning procedure. The resulting clones of scFv were compared to the diversity of the binding region, especially on CDR-H3. The clones enriched further by cell-based panning procedure possessed a similar binding site and the CDR-H3 loop structure. The resulting antibodies inhibited cell growth and induced target degradation. This process may be a useful tool for screening biologically related antibodies that recognize natural conformational structure on cell membrane protein. Furthermore, cell-based panning has the potential to further expand to a high-throughput screening (HTS) system and automation process.
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Affiliation(s)
- Byeongkwi Min
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea; (B.M.); (H.K.)
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea; (M.Y.); (M.C.)
| | - Minyoung Yoo
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea; (M.Y.); (M.C.)
| | - Hyeree Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea; (B.M.); (H.K.)
- Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea
| | - Minjung Cho
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea; (M.Y.); (M.C.)
| | - Do-Hyun Nam
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea; (B.M.); (H.K.)
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea; (M.Y.); (M.C.)
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Correspondence: (D.-H.N.); (Y.Y.); Tel.: +82-(2)-3410-3497 (D.-H.N.); +82-(2)-2148-7900 (Y.Y.)
| | - Yeup Yoon
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea; (B.M.); (H.K.)
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea; (M.Y.); (M.C.)
- Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Seoul 06351, Korea
- Correspondence: (D.-H.N.); (Y.Y.); Tel.: +82-(2)-3410-3497 (D.-H.N.); +82-(2)-2148-7900 (Y.Y.)
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Kumar R, Parray HA, Shrivastava T, Sinha S, Luthra K. Phage display antibody libraries: A robust approach for generation of recombinant human monoclonal antibodies. Int J Biol Macromol 2019; 135:907-918. [PMID: 31170490 DOI: 10.1016/j.ijbiomac.2019.06.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/02/2019] [Accepted: 06/02/2019] [Indexed: 12/29/2022]
Abstract
Monoclonal antibodies (mAbs) and their derivatives have achieved remarkable success as medicine, targeting both diagnostic and therapeutic applications associated with communicable and non-communicable diseases. In the last 3 to 4 decades, tremendous success has been manifested in the field of cancer therapy, autoimmune diseases, cardiovascular and infectious diseases. MAbs are the fastest growing class of biopharmaceuticals, with more than 25 derivatives are in clinical use and 7 of these have been isolated through phage display technology. Phage display technology has gained impetus in the field of medical and health sciences, as a large repertoire of diverse recombinant antibodies, targeting various antigens have been generated in a short span of time. A prominent number of phage display derived antibodies are already approved for therapy and significant numbers are currently in clinical trials. In this review we have discussed the various strategies employed for generation of monoclonal antibodies; their advantages, limitations and potential therapeutic applications. We also discuss the potential of phage display antibody libraries in isolation of monoclonal antibodies.
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Affiliation(s)
- Rajesh Kumar
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India; Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India.
| | - Hilal Ahmed Parray
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Tripti Shrivastava
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Subrata Sinha
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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