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Finizio A, Pagano P, Napolano A, Froechlich G, Infante L, De Chiara A, Amiranda S, Vitiello E, Totaro S, Capasso C, Raia M, D'Alise AM, de Candia P, Zambrano N, Sasso E. Integrating system biology and intratumor gene therapy by trans-complementing the appropriate co-stimulatory molecule as payload in oncolytic herpes virus. Cancer Gene Ther 2024:10.1038/s41417-024-00790-8. [PMID: 38839891 DOI: 10.1038/s41417-024-00790-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/07/2024]
Abstract
Systems biology has been applied at the multi-scale level within the cancer field, improving cancer prevention, diagnosis and enabling precision medicine approaches. While systems biology can expand the knowledge and skills for oncological treatment, it also represents a challenging expedition due to cancer complexity, heterogeneity and diversity not only between different cancer indications, but also in its evolution process through space and time. Here, by characterizing the transcriptional perturbations of the tumor microenvironment induced by oncolytic, we aimed to rationally design a novel armed oncolytic herpes virus. We found that intratumor oncovirotherapy with HSV-1 induces T-cell activation signatures and transcriptionally activates several costimulatory molecules. We identified differentially expressed costimulatory receptors and binding partners, where inducible co-stimulators (ICOS) resulted in the potentially most beneficial targeted therapy. Through an ex-vivo transcriptomic analysis, we explored the potential of arming an oncolytic virus as a combination therapy strategy; in particular, we engineered a targeted herpes virus encoding ICOSL (THV_ICOSL), which resulted in a significant improvement in tumor size control compared to unarmed parental virus. Also, combination with a PD-1 inhibitor enhanced antitumor efficacy as predictable by upregulation of PD-1 and ligands pair (PD-L1/PD-L2) upon oncolytic virus injection. Generation of the human version of this virus encoding hICOSL orthologue effectively and specifically activated human T cells by triggering the ICOS pathway. Our data support the data-driven generation of armed oncolytic viruses as combination immunotherapeutic with checkpoint inhibitors.
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Affiliation(s)
- A Finizio
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - P Pagano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - A Napolano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - G Froechlich
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | | | - A De Chiara
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - S Amiranda
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
| | - E Vitiello
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
| | - S Totaro
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - C Capasso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - M Raia
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | | | - P de Candia
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
| | - N Zambrano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy
| | - E Sasso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131, Napoli, NA, Italy.
- CEINGE Biotecnologie Avanzate Franco Salvatore S.C.aR.L., Naples, Italy.
- ImGen-T Srl, Viale del Parco Carelli, Napoli, NA, Italy.
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França RKA, Studart IC, Bezerra MRL, Pontes LQ, Barbosa AMA, Brigido MM, Furtado GP, Maranhão AQ. Progress on Phage Display Technology: Tailoring Antibodies for Cancer Immunotherapy. Viruses 2023; 15:1903. [PMID: 37766309 PMCID: PMC10536222 DOI: 10.3390/v15091903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
The search for innovative anti-cancer drugs remains a challenge. Over the past three decades, antibodies have emerged as an essential asset in successful cancer therapy. The major obstacle in developing anti-cancer antibodies is the need for non-immunogenic antibodies against human antigens. This unique requirement highlights a disadvantage to using traditional hybridoma technology and thus demands alternative approaches, such as humanizing murine monoclonal antibodies. To overcome these hurdles, human monoclonal antibodies can be obtained directly from Phage Display libraries, a groundbreaking tool for antibody selection. These libraries consist of genetically engineered viruses, or phages, which can exhibit antibody fragments, such as scFv or Fab on their capsid. This innovation allows the in vitro selection of novel molecules directed towards cancer antigens. As foreseen when Phage Display was first described, nowadays, several Phage Display-derived antibodies have entered clinical settings or are undergoing clinical evaluation. This comprehensive review unveils the remarkable progress in this field and the possibilities of using clever strategies for phage selection and tailoring the refinement of antibodies aimed at increasingly specific targets. Moreover, the use of selected antibodies in cutting-edge formats is discussed, such as CAR (chimeric antigen receptor) in CAR T-cell therapy or ADC (antibody drug conjugate), amplifying the spectrum of potential therapeutic avenues.
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Affiliation(s)
- Renato Kaylan Alves França
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
- Graduate Program in Molecular Pathology, University of Brasilia, Brasilia 70910-900, Brazil
| | - Igor Cabral Studart
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Marcus Rafael Lobo Bezerra
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Larissa Queiroz Pontes
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Antonio Marcos Aires Barbosa
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Applied Informatics, University of Fortaleza, Fortaleza 60811-905, Brazil
| | - Marcelo Macedo Brigido
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
| | - Gilvan Pessoa Furtado
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Andréa Queiroz Maranhão
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
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Bulaon CJI, Khorattanakulchai N, Rattanapisit K, Sun H, Pisuttinusart N, Strasser R, Tanaka S, Soon-Shiong P, Phoolcharoen W. Antitumor effect of plant-produced anti-CTLA-4 monoclonal antibody in a murine model of colon cancer. FRONTIERS IN PLANT SCIENCE 2023; 14:1149455. [PMID: 37711295 PMCID: PMC10497774 DOI: 10.3389/fpls.2023.1149455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023]
Abstract
Cytotoxic T lymphocyte-associated protein 4 (CTLA-4) is an immune checkpoint regulator exclusively expressed on T cells that obstructs the cell's effector functions. Ipilimumab (Yervoy®), a CTLA-4 blocking antibody, emerged as a notable breakthrough in modern cancer treatment, showing upfront clinical benefits in multiple carcinomas. However, the exhilarating cost of checkpoint blockade therapy is discouraging and even utmost prominent in developing countries. Thereby, affordability of cancer care has become a point of emphasis in drug development pipelines. Plant expression system blossomed as a cutting-edge platform for rapid, facile to scale-up, and economical production of recombinant therapeutics. Here, we describe the production of an anti-CTLA-4 2C8 antibody in Nicotiana benthamiana. ELISA and bio-layer interferometry were used to analyze antigen binding and binding kinetics. Anticancer responses in vivo were evaluated using knocked-in mice implanted with syngeneic colon tumor. At 4 days post-infiltration, the antibody was transiently expressed in plants with yields of up to 39.65 ± 8.42 μg/g fresh weight. Plant-produced 2C8 binds to both human and murine CTLA-4, and the plant-produced IgG1 also binds to human FcγRIIIa (V158). In addition, the plant-produced 2C8 monoclonal antibody is as effective as Yervoy® in inhibiting tumor growth in vivo. In conclusion, our study underlines the applicability of plant platform to produce functional therapeutic antibodies with promising potential in cancer immunotherapy.
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Affiliation(s)
- Christine Joy I. Bulaon
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Graduate Program of Pharmaceutical Sciences and Technology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | | | | | | | - Nuttapat Pisuttinusart
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Graduate Program of Pharmaceutical Sciences and Technology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Richard Strasser
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Shiho Tanaka
- ImmunityBio, Inc., Culver City, CA, United States
| | | | - Waranyoo Phoolcharoen
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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Li Y, Yang KD, Duan HY, Du YN, Ye JF. Phage-based peptides for pancreatic cancer diagnosis and treatment: alternative approach. Front Microbiol 2023; 14:1231503. [PMID: 37601380 PMCID: PMC10433397 DOI: 10.3389/fmicb.2023.1231503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/06/2023] [Indexed: 08/22/2023] Open
Abstract
Pancreatic cancer is a devastating disease with a high mortality rate and a lack of effective therapies. The challenges associated with early detection and the highly aggressive nature of pancreatic cancer have limited treatment options, underscoring the urgent need for better disease-modifying therapies. Peptide-based biotherapeutics have become an attractive area of research due to their favorable properties such as high selectivity and affinity, chemical modifiability, good tissue permeability, and easy metabolism and excretion. Phage display, a powerful technique for identifying peptides with high affinity and specificity for their target molecules, has emerged as a key tool in the discovery of peptide-based drugs. Phage display technology involves the use of bacteriophages to express peptide libraries, which are then screened against a target of interest to identify peptides with desired properties. This approach has shown great promise in cancer diagnosis and treatment, with potential applications in targeting cancer cells and developing new therapies. In this comprehensive review, we provide an overview of the basic biology of phage vectors, the principles of phage library construction, and various methods for binding affinity assessment. We then describe the applications of phage display in pancreatic cancer therapy, targeted drug delivery, and early detection. Despite its promising potential, there are still challenges to be addressed, such as optimizing the selection process and improving the pharmacokinetic properties of phage-based drugs. Nevertheless, phage display represents a promising approach for the development of novel targeted therapies in pancreatic cancer and other tumors.
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Affiliation(s)
- Yang Li
- General Surgery Center, First Hospital of Jilin University, Changchun, China
- School of Nursing, Jilin University, Changchun, China
| | - Kai-di Yang
- General Surgery Center, First Hospital of Jilin University, Changchun, China
- School of Nursing, Jilin University, Changchun, China
| | - Hao-yu Duan
- General Surgery Center, First Hospital of Jilin University, Changchun, China
- School of Nursing, Jilin University, Changchun, China
| | - Ya-nan Du
- General Surgery Center, First Hospital of Jilin University, Changchun, China
- School of Nursing, Jilin University, Changchun, China
| | - Jun-feng Ye
- General Surgery Center, First Hospital of Jilin University, Changchun, China
- School of Nursing, Jilin University, Changchun, China
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5
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Passariello M, Esposito S, Manna L, Rapuano Lembo R, Zollo I, Sasso E, Amato F, De Lorenzo C. Comparative Analysis of a Human Neutralizing mAb Specific for SARS-CoV-2 Spike-RBD with Cilgavimab and Tixagevimab for the Efficacy on the Omicron Variant in Neutralizing and Detection Assays. Int J Mol Sci 2023; 24:10053. [PMID: 37373201 DOI: 10.3390/ijms241210053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
The recent pandemic years have prompted the scientific community to increasingly search for and adopt new and more efficient therapeutic and diagnostic approaches to deal with a new infection. In addition to the development of vaccines, which has played a leading role in fighting the pandemic, the development of monoclonal antibodies has also represented a valid approach in the prevention and treatment of many cases of CoronaVirus Disease 2019 (COVID-19). Recently, we reported the development of a human antibody, named D3, showing neutralizing activity against different SARS-CoV-2 variants, wild-type, UK, Delta and Gamma variants. Here, we have further characterized with different methods D3's ability to bind the Omicron-derived recombinant RBD by comparing it with the antibodies Cilgavimab and Tixagevimab, recently approved for prophylactic use of COVID-19. We demonstrate here that D3 binds to a distinct epitope from that recognized by Cilgavimab and shows a different binding kinetic behavior. Furthermore, we report that the ability of D3 to bind the recombinant Omicron RBD domain in vitro results in a good ability to also neutralize Omicron-pseudotyped virus infection in ACE2-expressing cell cultures. We point out here that D3 mAb maintains a good ability to recognize both the wild-type and Omicron Spike proteins, either when used as recombinant purified proteins or when expressed on pseudoviral particles despite the different variants, making it particularly useful both from a therapeutic and diagnostic point of view. On the basis of these results, we propose to exploit this mAb for combinatorial treatments with other neutralizing mAbs to increase their therapeutic efficacy and for diagnostic use to measure the viral load in biological samples in the current and future pandemic waves of coronaviruses.
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Affiliation(s)
- Margherita Passariello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, NA, Italy
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Speranza Esposito
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Lorenzo Manna
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, NA, Italy
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Rosa Rapuano Lembo
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
- European School of Molecular Medicine, University of Milan, 20122 Milan, MI, Italy
| | - Immacolata Zollo
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Emanuele Sasso
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, NA, Italy
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Felice Amato
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, NA, Italy
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
| | - Claudia De Lorenzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, NA, Italy
- Ceinge-Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, NA, Italy
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Vitale M, Scialò F, Passariello M, Leggiero E, D’Agostino A, Tripodi L, Gentile L, Bianco A, Castaldo G, Cerullo V, De Lorenzo C, Pastore L. Oncolytic Adenoviral Vector-Mediated Expression of an Anti-PD-L1-scFv Improves Anti-Tumoral Efficacy in a Melanoma Mouse Model. Front Oncol 2022; 12:902190. [PMID: 35669438 PMCID: PMC9163395 DOI: 10.3389/fonc.2022.902190] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/14/2022] [Indexed: 12/15/2022] Open
Abstract
Oncolytic virotherapy is an emerging therapeutic approach based on replication-competent viruses able to selectively infect and destroy cancer cells, inducing the release of tumor-associated antigens and thereby recruiting immune cells with a subsequent increase in antitumoral immune response. To increase the anticancer activity, we engineered a specific oncolytic adenovirus expressing a single-chain variable fragment of an antibody against PD-L1 to combine blockage of PD-1/PD-L1 interaction with the antitumoral activity of Onc.Ad5. To assess its efficacy, we infected B16.OVA cells, a murine model of melanoma, with Ad5Δ24 -anti-PD-L1-scFv and then co-cultured them with C57BL/6J naïve splenocytes. We observed that the combinatorial treatments were significantly more effective in inducing cancer cell death. Furthermore, we assessed the efficacy of intratumoral administrations of Ad5Δ24-anti-PD-L1-scFv in C57BL/6J mice engrafted with B16.OVA and compared this treatment to that of the parental Ad5Δ24 or placebo. Treatment with the scFv-expressing Onc.Ad induced a marked reduction of tumor growth concerning the parental Onc.Ad. Additionally, the evaluation of the lymphocytic population infiltrating the treated tumor reveals a favorable immune profile with an enhancement of the CD8+ population. These data suggest that Onc.Ad-mediated expression of immune checkpoint inhibitors increases oncolytic virotherapy efficacy and could be an effective and promising tool for cancer treatments, opening a new way into cancer therapy.
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Affiliation(s)
- Maria Vitale
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Filippo Scialò
- CEINGE-Biotecnologie Avanzate, Naples, Italy
- Dipartimento di Scienze Mediche Traslazionali, Università della Campania “L. Vanvitelli”, Naples, Italy
| | - Margherita Passariello
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- CEINGE-Biotecnologie Avanzate, Naples, Italy
| | | | | | | | | | - Andrea Bianco
- Dipartimento di Scienze Mediche Traslazionali, Università della Campania “L. Vanvitelli”, Naples, Italy
| | - Giuseppe Castaldo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Vincenzo Cerullo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- Laboratory of Immunovirotherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Claudia De Lorenzo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Lucio Pastore
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy
- CEINGE-Biotecnologie Avanzate, Naples, Italy
- *Correspondence: Lucio Pastore,
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Zambrano N, Froechlich G, Lazarevic D, Passariello M, Nicosia A, De Lorenzo C, Morelli MJ, Sasso E. High-Throughput Monoclonal Antibody Discovery from Phage Libraries: Challenging the Current Preclinical Pipeline to Keep the Pace with the Increasing mAb Demand. Cancers (Basel) 2022; 14:cancers14051325. [PMID: 35267633 PMCID: PMC8909429 DOI: 10.3390/cancers14051325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Monoclonal antibodies are increasingly used for a broad range of diseases. Rising demand must face with time time-consuming and laborious processes to isolate novel monoclonal antibodies. Next-generation sequencing coupled to phage display provides timely and sustainable high throughput selection strategy to rapidly access novel target. Here, we describe the current NGS-guided strategies to identify potential binders from enriched sub-libraires by applying a user-friendly informatic pipeline to identify and discard false positive clones. Rescue step and strategies to boost mAb yield are also discussed to improve the limiting selection and screening steps. Abstract Monoclonal antibodies are among the most powerful therapeutics in modern medicine. Since the approval of the first therapeutic antibody in 1986, monoclonal antibodies keep holding great expectations for application in a range of clinical indications, highlighting the need to provide timely and sustainable access to powerful screening options. However, their application in the past has been limited by time-consuming and expensive steps of discovery and production. The screening of antibody repertoires is a laborious step; however, the implementation of next-generation sequencing-guided screening of single-chain antibody fragments has now largely overcome this issue. This review provides a detailed overview of the current strategies for the identification of monoclonal antibodies from phage display-based libraries. We also discuss the challenges and the possible solutions to improve the limiting selection and screening steps, in order to keep pace with the increasing demand for monoclonal antibodies.
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Affiliation(s)
- Nicola Zambrano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
- Correspondence: (N.Z.); (E.S.)
| | - Guendalina Froechlich
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Dejan Lazarevic
- Center for Omics Sciences Ospedale San Raffaele, Via Olgettina 58, 20132 Milano, Italy; (D.L.); (M.J.M.)
| | - Margherita Passariello
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Alfredo Nicosia
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Claudia De Lorenzo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Marco J. Morelli
- Center for Omics Sciences Ospedale San Raffaele, Via Olgettina 58, 20132 Milano, Italy; (D.L.); (M.J.M.)
| | - Emanuele Sasso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy; (G.F.); (M.P.); (A.N.); (C.D.L.)
- CEINGE—Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
- Correspondence: (N.Z.); (E.S.)
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Vetrei C, Passariello M, Froechlich G, Rapuano Lembo R, Sasso E, Zambrano N, De Lorenzo C. Novel Combinations of Human Immunomodulatory mAbs Lacking Cardiotoxic Effects for Therapy of TNBC. Cancers (Basel) 2021; 14:cancers14010121. [PMID: 35008285 PMCID: PMC8750931 DOI: 10.3390/cancers14010121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Immunotherapy has revolutionized the management of cancer by improving outcomes of triple-negative breast cancer (TNBC). Recently, programmed death-ligand 1 (PD-L1), was identified as a target for TNBC and several preclinical and clinical trials are currently focusing on combinatorial treatments of immunomodulatory mAbs with chemotherapy, radiotherapy, or other mAbs. Here, we tested in in vitro models novel combinations of immunomodulatory mAbs on TNBC cell lines and on cardiomyocytes, in comparison with the mAbs approved by FDA for cancer therapy, in order to identify at early stages the more potent anti-cancer combinations endowed with low or no cardiotoxic side effects. Abstract Triple-negative breast cancer (TNBC) is a highly aggressive subtype of breast cancer characterized by a higher mortality rate among breast cancer subtypes. Poly(ADP-ribose) polymerase (PARP) inhibitors are used in clinics to treat a subgroup of TNBC patients, but other targeted therapies are urgently needed. Programmed death-ligand 1 (PD-L1), involved in tumor immune escape, was recently identified as a target for TNBC; accordingly, the anti-PD-L1 monoclonal antibody (mAb), atezolizumab, has been approved by FDA in combination with Paclitaxel for the therapy of metastatic TNBC. Here, we tested novel combinations of fully human immunomodulatory mAbs, including anti-PD-L1 mAbs generated in our laboratory and atezolizumab, on TNBC and other tumor cell lines. We evaluated their anti-tumor efficacy when used as single agents or in combinatorial treatments with anti-CTLA-4 mAbs in in vitro co-cultures of hPBMCs with tumor cells, by measuring tumor cell lysis and IL-2 and IFNγ cytokines secretion by lymphocytes. In parallel, by using co-cultures of hPBMCs and cardiomyocytes, we analyzed the potential cardiotoxic adverse side effects of the same antibody treatments by measuring the cardiac cell lysis and the secretion of pro-inflammatory cytokines. We identified novel combinations of immunomodulatory mAbs endowed with more potent anti-cancer activity on TNBC and lower cardiotoxic side effects than the combination of atezolizumab and ipilimumab.
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Affiliation(s)
- Cinzia Vetrei
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Napoli, Italy
| | - Margherita Passariello
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Napoli, Italy
| | - Guendalina Froechlich
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- European School of Molecular Medicine, University of Milan, 20122 Milan, Italy
| | - Rosa Rapuano Lembo
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- European School of Molecular Medicine, University of Milan, 20122 Milan, Italy
| | - Emanuele Sasso
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Napoli, Italy
| | - Nicola Zambrano
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Napoli, Italy
| | - Claudia De Lorenzo
- Ceinge—Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy; (C.V.); (M.P.); (G.F.); (R.R.L.); (E.S.); (N.Z.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Napoli, Italy
- Correspondence: ; Tel.: +39-081-373-7868
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Gentile C, Finizio A, Froechlich G, D’Alise AM, Cotugno G, Amiranda S, Nicosia A, Scarselli E, Zambrano N, Sasso E. Generation of a Retargeted Oncolytic Herpes Virus Encoding Adenosine Deaminase for Tumor Adenosine Clearance. Int J Mol Sci 2021; 22:ijms222413521. [PMID: 34948316 PMCID: PMC8705735 DOI: 10.3390/ijms222413521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Oncolytic viruses are immunotherapeutic agents that can be engineered to encode payloads of interest within the tumor microenvironment to enhance therapeutic efficacy. Their therapeutic potential could be limited by many avenues for immune evasion exerted by the tumor. One such is mediated by adenosine, which induces pleiotropic immunosuppression by inhibiting antitumor immune populations as well as activating tolerogenic stimuli. Adenosine is produced starting from the highly immunostimulatory ATP, which is progressively hydrolyzed to ADP and adenosine by CD39 and CD73. Cancer cells express high levels of CD39 and CD73 ectoenzymes, thus converting immunostimulatory purinergic signal of ATP into an immunosuppressive signal. For this reason, CD39, CD73 and adenosine receptors are currently investigated in clinical trials as targets for metabolic cancer immunotherapy. This is of particular relevance in the context of oncovirotherapy, as immunogenic cell death induced by oncolytic viruses causes the secretion of a high amount of ATP which is available to be quickly converted into adenosine. Methods: Here, we took advantage of adenosine deaminase enzyme that naturally converts adenosine into the corresponding inosine derivative, devoid of immunoregulatory function. We encoded ADA into an oncolytic targeted herpes virus redirected to human HER2. An engineered ADA with an ectopic signal peptide was also generated to improve enzyme secretion (ADA-SP). Results: Insertion of the expression cassette was not detrimental for viral yield and cancer cell cytotoxicity. The THV_ADA and THV_ADA-SP successfully mediated the secretion of functional ADA enzyme. In in vitro model of human monocytes THP1, this ability of THV_ADA and THV_ADA-SP resulted in the retrieval of eADO-exposed monocytes replication rate, suggesting the proficiency of the viruses in rescuing the immune function. Conclusions: Encoding ADA into oncolytic viruses revealed promising properties for preclinical exploitation.
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Affiliation(s)
- Chiara Gentile
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Naples, Italy
| | - Arianna Finizio
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
| | - Guendalina Froechlich
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
| | - Anna Morena D’Alise
- Nouscom S.R.L., Via di Castel Romano 100, 00128 Rome, Italy; (A.M.D.); (G.C.); (E.S.)
| | - Gabriella Cotugno
- Nouscom S.R.L., Via di Castel Romano 100, 00128 Rome, Italy; (A.M.D.); (G.C.); (E.S.)
| | - Sara Amiranda
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Naples, Italy
| | - Alfredo Nicosia
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Naples, Italy
| | - Elisa Scarselli
- Nouscom S.R.L., Via di Castel Romano 100, 00128 Rome, Italy; (A.M.D.); (G.C.); (E.S.)
| | - Nicola Zambrano
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Naples, Italy
| | - Emanuele Sasso
- CEINGE Biotecnologie Avanzate S.C.aR.L., Via G. Salvatore 486, 80145 Naples, Italy; (C.G.); (A.F.); (G.F.); (S.A.); (A.N.); (N.Z.)
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Naples, Italy
- Correspondence:
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Passariello M, Vetrei C, Amato F, De Lorenzo C. Interactions of Spike-RBD of SARS-CoV-2 and Platelet Factor 4: New Insights in the Etiopathogenesis of Thrombosis. Int J Mol Sci 2021; 22:ijms22168562. [PMID: 34445266 PMCID: PMC8395316 DOI: 10.3390/ijms22168562] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 07/30/2021] [Accepted: 08/05/2021] [Indexed: 12/15/2022] Open
Abstract
The rare but dangerous adverse events evidenced after massive vaccination against SARS-CoV-2 are represented by thrombosis and thrombocytopenia. The patients diagnosed with severe COVID-19 may develop a pro-thrombotic state with a much higher frequency, thus we decided to investigate the role of Spike protein (the only common product of the two conditions) or the anti-Spike antibodies in the etiopathogenesis of thrombosis. A pathogenic Platelet Factor 4 (PF4)-dependent syndrome, unrelated to the use of heparin therapy, has been reported after the administration of vaccines in the patients manifesting acute thrombocytopenia and thrombosis. Thus, we aimed at shedding light on the structural similarities of Spike of SARS-CoV-2 and PF4 on their eventual biochemical interactions and on the role of their specific antibodies. The similarities between PF4 and Spike-RBD proteins were evaluated by a comparison of the structures and by testing the cross-reactivity of their specific antibodies by ELISA assays. We found that the anti-Spike antibodies do not recognize PF4, on the contrary, the anti-PF4 antibodies show some cross-reactivity for Spike-RBD. More interestingly, we report for the first time that the PF4 and Spike-RBD proteins can bind each other. These data suggest that the interaction of the two proteins could be involved in the generation of anti-PF4 antibodies, their binding to Spike-RBD, which could lead to platelets aggregation due also to their high expression of ACE2.
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Affiliation(s)
- Margherita Passariello
- Ceinge—Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy; (M.P.); (C.V.); (F.A.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy
| | - Cinzia Vetrei
- Ceinge—Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy; (M.P.); (C.V.); (F.A.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy
| | - Felice Amato
- Ceinge—Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy; (M.P.); (C.V.); (F.A.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy
| | - Claudia De Lorenzo
- Ceinge—Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy; (M.P.); (C.V.); (F.A.)
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-081-3737868
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11
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Immunomodulatory mAbs as Tools to Investigate on Cis-Interaction of PD-1/PD-L1 on Tumor Cells and to Set Up Methods for Early Screening of Safe and Potent Combinatorial Treatments. Cancers (Basel) 2021; 13:cancers13122858. [PMID: 34201082 PMCID: PMC8230074 DOI: 10.3390/cancers13122858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/18/2021] [Accepted: 06/02/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary A novel challenge in cancer immunotherapy is the identification of the most potent combinations of immunomodulatory mAbs that are capable of maximizing therapeutic benefits while minimizing irAEs. We set up an in vitro system to quickly predict the efficacy and eventual cardiotoxic side effects of combinatorial treatments, thus allowing for the early screening of most potent and safe combinatorial therapeutic regimens for both validated and emerging immunomodulatory mAbs against different immune checkpoints (ICs). Furthermore, we provide for the first time evidence on cis-interactions of ICs in tumor cells. Abstract Antibodies targeting Immune Checkpoints (IC) on tumor infiltrating lymphocytes improve immune responses against cancer. Recently, the expression of some ICs has also been reported on cancer cells. We used the clinically validated Ipilimumab and Nivolumab and other novel human antibodies targeting Cytotoxic T- lymphocyte-antigen 4 (CTLA-4), Programmed Death receptor-1 (PD-1) and Programmed Death Ligand 1 (PD-L1) to shed light on the functions of these ICs in cancer cells. We show here for the first time that all these antagonistic mAbs are able to reduce Erk phosphorylation and, unexpectedly, to induce a significant increase of ICs expression on tumor cells, involving a hyperphosphorylation of NF-kB. On the contrary, agonistic PD-L1 and PD-1 recombinant proteins showed opposite effects by leading to a significant reduction of PD-1 and PD-L1, thus also suggesting the existence of a crosstalk in tumor cells between multiple ICs. Since the immunomodulatory mAbs show their higher anti-tumor efficacy by activating lymphocytes against cancer cells, we also investigated whether it was possible to identify the most efficient combinations of immunomodulatory mAbs for achieving potent anti-tumor efficacy associated with the lowest adverse side effects by setting up novel simple and predictive in vitro models based on co-cultures of tumor cells or human fetal cardiomyocytes with lymphocytes. We demonstrate here that novel combinations of immunomodulatory mAbs with more potent anti-cancer activity than Ipilimumab and Nivolumab combination can be identified with no or lower cardiotoxic side effects. Thus, we propose these co-cultures-based assays as useful tools to test also other combinatorial treatments of emerging immunomodulatory mAbs against different ICs for the early screening of most potent and safe combinatorial therapeutic regimens.
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12
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Passariello M, Gentile C, Ferrucci V, Sasso E, Vetrei C, Fusco G, Viscardi M, Brandi S, Cerino P, Zambrano N, Zollo M, De Lorenzo C. Novel human neutralizing mAbs specific for Spike-RBD of SARS-CoV-2. Sci Rep 2021; 11:11046. [PMID: 34040046 PMCID: PMC8155001 DOI: 10.1038/s41598-021-90348-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/07/2021] [Indexed: 02/04/2023] Open
Abstract
Among the therapies against the pandemic SARS-CoV-2 virus, monoclonal Antibodies (mAbs) targeting the Spike glycoprotein represent good candidates to interfere in the Spike/ACE2 interaction, preventing virus cell entry. Since anti-spike mAbs, used individually, might be unable to block the virus entry in the case of resistant mutations, we designed an innovative strategy for the isolation of multiple novel human scFvs specific for the binding domain (RBD) of Spike. By panning a large phage display antibody library on immobilized RBD, we obtained specific binders by eluting with ACE2 in order to identify those scFvs recognizing the epitope of Spike interacting with its receptor. We converted the novel scFvs into full size IgG4, differently from the previously isolated IgG1 mAbs, to avoid unwanted potential side effects of IgG1 potent effector functions on immune system. The novel antibodies specifically bind to RBD in a nanomolar range and interfere in the interaction of Spike with ACE2 receptor, either used as purified protein or when expressed on cells in its native conformation. Furthermore, some of them have neutralizing activity for virus infection in cell cultures by using two different SARS-CoV-2 isolates including the highly contagious VOC 202012/01 variant and could become useful therapeutic tools to fight against the SARS-CoV-2 virus.
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MESH Headings
- Angiotensin-Converting Enzyme 2/metabolism
- Antibodies, Monoclonal
- Antibodies, Neutralizing/genetics
- Antibodies, Neutralizing/immunology
- Antibodies, Neutralizing/metabolism
- Antibodies, Viral/genetics
- Antibodies, Viral/immunology
- Antibodies, Viral/metabolism
- COVID-19/immunology
- COVID-19/therapy
- Cells, Cultured
- Epitopes
- Humans
- Immunoglobulin G/immunology
- Immunoglobulin G/metabolism
- Immunotherapy/methods
- Pandemics
- Protein Binding
- Protein Domains/genetics
- SARS-CoV-2/physiology
- Spike Glycoprotein, Coronavirus/genetics
- Spike Glycoprotein, Coronavirus/immunology
- Spike Glycoprotein, Coronavirus/metabolism
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Affiliation(s)
- Margherita Passariello
- Ceinge - Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145, Naples, Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy
| | - Chiara Gentile
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy
| | - Veronica Ferrucci
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy
| | - Emanuele Sasso
- Ceinge - Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145, Naples, Italy
| | - Cinzia Vetrei
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy
| | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055, Portici Naples, Italy
| | - Maurizio Viscardi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055, Portici Naples, Italy
| | - Sergio Brandi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055, Portici Naples, Italy
| | - Pellegrino Cerino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055, Portici Naples, Italy
| | - Nicola Zambrano
- Ceinge - Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145, Naples, Italy.
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy.
| | - Massimo Zollo
- Ceinge - Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145, Naples, Italy.
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy.
| | - Claudia De Lorenzo
- Ceinge - Biotecnologie Avanzate s.c. a.r.l., Via Gaetano Salvatore 486, 80145, Naples, Italy.
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131, Napoli, NA, Italy.
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