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Im SW, Chung HY, Jang YJ. Development of single-chain Fv of antibody to DNA as intracellular delivery vehicle. Anim Cells Syst (Seoul) 2017. [DOI: 10.1080/19768354.2017.1401556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Sun-Woo Im
- Department of Biomedical Sciences, Graduate School of Medicine and Department of Microbiology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Hee Yong Chung
- Department of Biomedical Science, Graduate School of Biomedical Science & Engineering, Hanyang University, Seoul, Republic of Korea
| | - Young-Ju Jang
- Department of Biomedical Sciences, Graduate School of Medicine and Department of Microbiology, School of Medicine, Ajou University, Suwon, Republic of Korea
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Scognamiglio PL, Di Natale C, Leone M, Cascella R, Cecchi C, Lirussi L, Antoniali G, Riccardi D, Morelli G, Tell G, Chiti F, Marasco D. Destabilisation, aggregation, toxicity and cytosolic mislocalisation of nucleophosmin regions associated with acute myeloid leukemia. Oncotarget 2016; 7:59129-59143. [PMID: 27494862 PMCID: PMC5312300 DOI: 10.18632/oncotarget.10991] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 07/17/2016] [Indexed: 01/05/2023] Open
Abstract
Nucleophosmin (NPM1) is a multifunctional protein that is implicated in the pathogenesis of several human malignancies. To gain insight into the role of isolated fragments of NPM1 in its biological activities, we dissected the C-terminal domain (CTD) into its helical fragments. Here we focus the attention on the third helix of the NPM1-CTD in its wild-type (H3 wt) and AML-mutated (H3 mutA and H3 mutE) sequences. Conformational studies, by means of CD and NMR spectroscopies, showed that the H3 wt peptide was partially endowed with an α-helical structure, but the AML-sequences exhibited a lower content of this conformation, particularly the H3 mutA peptide. Thioflavin T assays showed that the H3 mutE and the H3 mutA peptides displayed a significant aggregation propensity that was confirmed by CD and DLS assays. In addition, we found that the H3 mutE and H3 mutA peptides, unlike the H3 wt, were moderately and highly toxic, respectively, when exposed to human neuroblastoma cells. Cellular localization experiments confirmed that the mutated sequences hamper their nucleolar accumulation, and more importantly, that the helical conformation of the H3 region is crucial for such a localization.
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Affiliation(s)
- Pasqualina Liana Scognamiglio
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi-University of Naples “Federico II”, DFM-Scarl, 80134, Naples, Italy
- Permanent address: Center for Advanced Biomaterials for Health Care@CRIB Istituto Italiano di Tecnologia, 80125, Napoli, Italy
| | - Concetta Di Natale
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi-University of Naples “Federico II”, DFM-Scarl, 80134, Naples, Italy
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging - CNR, 80134, Naples, Italy
| | - Roberta Cascella
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134, Florence, Italy
| | - Cristina Cecchi
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134, Florence, Italy
| | - Lisa Lirussi
- Laboratory of Molecular Biology and DNA repair, Department of Medical and Biological Sciences, University of Udine, 33100, Udine, Italy
- Permanent address: Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Nordbyhagen, 1474, Norway
| | - Giulia Antoniali
- Laboratory of Molecular Biology and DNA repair, Department of Medical and Biological Sciences, University of Udine, 33100, Udine, Italy
| | - Domenico Riccardi
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi-University of Naples “Federico II”, DFM-Scarl, 80134, Naples, Italy
| | - Giancarlo Morelli
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi-University of Naples “Federico II”, DFM-Scarl, 80134, Naples, Italy
| | - Gianluca Tell
- Laboratory of Molecular Biology and DNA repair, Department of Medical and Biological Sciences, University of Udine, 33100, Udine, Italy
| | - Fabrizio Chiti
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134, Florence, Italy
| | - Daniela Marasco
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi-University of Naples “Federico II”, DFM-Scarl, 80134, Naples, Italy
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Ojima-Kato T, Hashimura D, Kojima T, Minabe S, Nakano H. In vitro generation of rabbit anti-Listeria monocytogenes monoclonal antibody using single cell based RT-PCR linked cell-free expression systems. J Immunol Methods 2015; 427:58-65. [DOI: 10.1016/j.jim.2015.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/03/2015] [Accepted: 10/05/2015] [Indexed: 01/14/2023]
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Lee J, Kim HJ, Roh J, Seo Y, Kim M, Jun HR, Pham CD, Kwon MH. Functional consequences of complementarity-determining region deactivation in a multifunctional anti-nucleic acid antibody. J Biol Chem 2013; 288:35877-85. [PMID: 24155236 PMCID: PMC3861637 DOI: 10.1074/jbc.m113.508499] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Many murine monoclonal anti-DNA antibodies (Abs) derived from mice models for systemic lupus erythematosus have additional cell-penetration and/or nucleic acid-hydrolysis properties. Here, we examined the influence of deactivating each complementarity-determining region (CDR) within a multifunctional anti-nucleic acid antibody (Ab) that possesses these activities, the catalytic 3D8 single chain variable fragment (scFv). CDR-deactivated 3D8 scFv variants were generated by replacing all of the amino acids within each CDR with Gly/Ser residues. The structure of 3D8 scFv accommodated single complete CDR deactivations. Different functional activities of 3D8 scFv were affected differently depending on which CDR was deactivated. The only exception was CDR1, located within the light chain (LCDR1); deactivation of LCDR1 abolished all of the functional activities of 3D8 scFv. A hybrid Ab, HW6/3D8L1, in which the LCDR1 from an unrelated Ab (HW6) was replaced with the LCDR1 from 3D8, acquired all activities associated with the 3D8 scFv. These results suggest that the activity of a multifunctional 3D8 scFv Ab can be modulated by single complete CDR deactivation and that the LCDR1 plays a crucial role in maintaining Ab properties. This study presents a new approach for determining the role of individual CDRs in multifunctional Abs with important implications for the future of Ab engineering.
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Affiliation(s)
- Jiyeon Lee
- From the Department of Biomedical Sciences, Graduate School, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon 443-749, South Korea and
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