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Martínez-Torró C, Alba-Castellón L, Carrasco-Díaz LM, Serna N, Imedio L, Gallardo A, Casanova I, Unzueta U, Vázquez E, Mangues R, Villaverde A. Lymphocyte infiltration and antitumoral effect promoted by cytotoxic inflammatory proteins formulated as self-assembling, protein-only nanoparticles. Biomed Pharmacother 2023; 164:114976. [PMID: 37276641 DOI: 10.1016/j.biopha.2023.114976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/07/2023] Open
Abstract
Two human proteins involved in the inflammatory cell death, namely Gasdermin D (GSDMD) and the Mixed Lineage Kinase Domain-Like (MLKL) protein have been engineered to accommodate an efficient ligand of the tumoral cell marker CXCR4, and a set of additional peptide agents that allow their spontaneous self-assembling. Upon production in bacterial cells and further purification, both proteins organized as stable nanoparticles of 46 and 54 nm respectively, that show, in this form, a moderate but dose-dependent cytotoxicity in cell culture. In vivo, and when administered in mouse models of colorectal cancer through repeated doses, the nanoscale forms of tumor-targeted GSDMD and, at a lesser extent, of MLKL promoted CD8+ and CD20+ lymphocyte infiltration in the tumor and an important reduction of tumor size, in absence of systemic toxicity. The potential of these novel pharmacological agents as anticancer drugs is discussed in the context of synergistic approaches to more effective cancer treatments.
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Affiliation(s)
- Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lorena Alba-Castellón
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Luis Miguel Carrasco-Díaz
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Laura Imedio
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Alberto Gallardo
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Department of Pathology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Isolda Casanova
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Ugutz Unzueta
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain.
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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Voltà-Durán E, Sánchez JM, Parladé E, Serna N, Vazquez E, Unzueta U, Villaverde A. The Diphtheria Toxin Translocation Domain Impairs Receptor Selectivity in Cancer Cell-Targeted Protein Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14122644. [PMID: 36559138 PMCID: PMC9781143 DOI: 10.3390/pharmaceutics14122644] [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: 10/03/2022] [Revised: 11/20/2022] [Accepted: 11/23/2022] [Indexed: 12/02/2022] Open
Abstract
Protein-based materials intended as nanostructured drugs or drug carriers are progressively gaining interest in nanomedicine, since their structure, assembly and cellular interactivity can be tailored by recruiting functional domains. The main bottleneck in the development of deliverable protein materials is the lysosomal degradation that follows endosome maturation. This is especially disappointing in the case of receptor-targeted protein constructs, which, while being highly promising and in demand in precision medicines, enter cells via endosomal/lysosomal routes. In the search for suitable protein agents that might promote endosome escape, we have explored the translocation domain (TD) of the diphtheria toxin as a functional domain in CXCR4-targeted oligomeric nanoparticles designed for cancer therapies. The pharmacological interest of such protein materials could be largely enhanced by improving their proteolytic stability. The incorporation of TD into the building blocks enhances the amount of the material detected inside of exposed CXCR4+ cells up to around 25-fold, in absence of cytotoxicity. This rise cannot be accounted for by endosomal escape, since the lysosomal degradation of the new construct decreases only moderately. On the other hand, a significant loss in the specificity of the CXCR4-dependent cellular penetration indicates the unexpected role of the toxin segment as a cell-penetrating peptide in a dose-dependent and receptor-independent fashion. These data reveal that the diphtheria toxin TD displayed on receptor-targeted oligomeric nanoparticles partially abolishes the exquisite receptor specificity of the parental material and it induces nonspecific internalization in mammalian cells.
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Affiliation(s)
- Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Julieta M. Sánchez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), CONICET-Universidad Nacional de Córdoba, Av. Velez Sarsfield 1611, Córdoba X5016GCA, Argentina
| | - Eloi Parladé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Esther Vazquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Ugutz Unzueta
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), Sant Quintí 77-79, 08041 Barcelona, Spain
- Josep Carreras Leukaemia Research Institute, 08025 Barcelona, Spain
- Correspondence: (U.U.); (A.V.)
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Correspondence: (U.U.); (A.V.)
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Parladé E, Voltà-Durán E, Cano-Garrido O, Sánchez JM, Unzueta U, López-Laguna H, Serna N, Cano M, Rodríguez-Mariscal M, Vazquez E, Villaverde A. An In Silico Methodology That Facilitates Decision Making in the Engineering of Nanoscale Protein Materials. Int J Mol Sci 2022; 23:4958. [PMID: 35563346 PMCID: PMC9099527 DOI: 10.3390/ijms23094958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 01/26/2023] Open
Abstract
Under the need for new functional and biocompatible materials for biomedical applications, protein engineering allows the design of assemblable polypeptides, which, as convenient building blocks of supramolecular complexes, can be produced in recombinant cells by simple and scalable methodologies. However, the stability of such materials is often overlooked or disregarded, becoming a potential bottleneck in the development and viability of novel products. In this context, we propose a design strategy based on in silico tools to detect instability areas in protein materials and to facilitate the decision making in the rational mutagenesis aimed to increase their stability and solubility. As a case study, we demonstrate the potential of this methodology to improve the stability of a humanized scaffold protein (a domain of the human nidogen), with the ability to oligomerize into regular nanoparticles usable to deliver payload drugs to tumor cells. Several nidogen mutants suggested by the method showed important and measurable improvements in their structural stability while retaining the functionalities and production yields of the original protein. Then, we propose the procedure developed here as a cost-effective routine tool in the design and optimization of multimeric protein materials prior to any experimental testing.
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Affiliation(s)
- Eloi Parladé
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Eric Voltà-Durán
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Olivia Cano-Garrido
- Nanoligent S.L., Eureka Building, Av. de Can Doménech s/n, Campus de la UAB, 08193 Bellaterra, Spain; (O.C.-G.); (N.S.); (M.C.); (M.R.-M.)
| | - Julieta M. Sánchez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departamento de Química, Cátedra de Química Biológica, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA, Universidad Nacional de Córdoba, Av. Vélez Sársfield 1611, Córdoba 5016, Argentina
- Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), CONICET-Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Ugutz Unzueta
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Ma Claret 167, 08025 Barcelona, Spain
| | - Hèctor López-Laguna
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Naroa Serna
- Nanoligent S.L., Eureka Building, Av. de Can Doménech s/n, Campus de la UAB, 08193 Bellaterra, Spain; (O.C.-G.); (N.S.); (M.C.); (M.R.-M.)
| | - Montserrat Cano
- Nanoligent S.L., Eureka Building, Av. de Can Doménech s/n, Campus de la UAB, 08193 Bellaterra, Spain; (O.C.-G.); (N.S.); (M.C.); (M.R.-M.)
| | - Manuel Rodríguez-Mariscal
- Nanoligent S.L., Eureka Building, Av. de Can Doménech s/n, Campus de la UAB, 08193 Bellaterra, Spain; (O.C.-G.); (N.S.); (M.C.); (M.R.-M.)
| | - Esther Vazquez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Antonio Villaverde
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; (E.V.-D.); (J.M.S.); (U.U.); (H.L.-L.); (E.V.)
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Sánchez JM, Carratalá JV, Serna N, Unzueta U, Nolan V, Sánchez-Chardi A, Voltà-Durán E, López-Laguna H, Ferrer-Miralles N, Villaverde A, Vazquez E. The Poly-Histidine Tag H6 Mediates Structural and Functional Properties of Disintegrating, Protein-Releasing Inclusion Bodies. Pharmaceutics 2022; 14:pharmaceutics14030602. [PMID: 35335976 PMCID: PMC8955739 DOI: 10.3390/pharmaceutics14030602] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 12/13/2022] Open
Abstract
The coordination between histidine-rich peptides and divalent cations supports the formation of nano- and micro-scale protein biomaterials, including toxic and non-toxic functional amyloids, which can be adapted as drug delivery systems. Among them, inclusion bodies (IBs) formed in recombinant bacteria have shown promise as protein depots for time-sustained protein release. We have demonstrated here that the hexahistidine (H6) tag, fused to recombinant proteins, impacts both on the formation of bacterial IBs and on the conformation of the IB-forming protein, which shows a higher content of cross-beta intermolecular interactions in H6-tagged versions. Additionally, the addition of EDTA during the spontaneous disintegration of isolated IBs largely affects the protein leakage rate, again protein release being stimulated in His-tagged materials. This event depends on the number of His residues but irrespective of the location of the tag in the protein, as it occurs in either C-tagged or N-tagged proteins. The architectonic role of H6 in the formation of bacterial IBs, probably through coordination with divalent cations, offers an easy approach to manipulate protein leakage and to tailor the applicability of this material as a secretory amyloidal depot in different biomedical interfaces. In addition, the findings also offer a model to finely investigate, in a simple set-up, the mechanics of protein release from functional secretory amyloids.
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Affiliation(s)
- Julieta María Sánchez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), CONICET-Universidad Nacional de Córdoba, ICTA & Cátedra de Química Biológica, Departamento de Química, FCEFyN, UNC. Av. Velez Sarsfield 1611, Córdoba X 5016GCA, Argentina;
| | - José Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
- Josep Carreras Leukaemia Research Institute, 08025 Barcelona, Spain
| | - Verónica Nolan
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), CONICET-Universidad Nacional de Córdoba, ICTA & Cátedra de Química Biológica, Departamento de Química, FCEFyN, UNC. Av. Velez Sarsfield 1611, Córdoba X 5016GCA, Argentina;
| | - Alejandro Sánchez-Chardi
- Servei de Microscòpia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Hèctor López-Laguna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Correspondence: (A.V.); (E.V.)
| | - Esther Vazquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Correspondence: (A.V.); (E.V.)
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Serna N, Falgàs A, García-León A, Unzueta U, Núñez Y, Sánchez-Chardi A, Martínez-Torró C, Mangues R, Vazquez E, Casanova I, Villaverde A. Time-Prolonged Release of Tumor-Targeted Protein-MMAE Nanoconjugates from Implantable Hybrid Materials. Pharmaceutics 2022; 14:pharmaceutics14010192. [PMID: 35057088 PMCID: PMC8777625 DOI: 10.3390/pharmaceutics14010192] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/03/2022] [Accepted: 01/11/2022] [Indexed: 11/29/2022] Open
Abstract
The sustained release of small, tumor-targeted cytotoxic drugs is an unmet need in cancer therapies, which usually rely on punctual administration regimens of non-targeted drugs. Here, we have developed a novel concept of protein–drug nanoconjugates, which are packaged as slow-releasing chemically hybrid depots and sustain a prolonged secretion of the therapeutic agent. For this, we covalently attached hydrophobic molecules (including the antitumoral drug Monomethyl Auristatin E) to a protein targeting a tumoral cell surface marker abundant in several human neoplasias, namely the cytokine receptor CXCR4. By this, a controlled aggregation of the complex is achieved, resulting in mechanically stable protein–drug microparticles. These materials, which are mimetics of bacterial inclusion bodies and of mammalian secretory granules, allow the slow leakage of fully functional conjugates at the nanoscale, both in vitro and in vivo. Upon subcutaneous administration in a mouse model of human CXCR4+ lymphoma, the protein–drug depots release nanoconjugates for at least 10 days, which accumulate in the tumor with a potent antitumoral effect. The modification of scaffold cell-targeted proteins by hydrophobic drug conjugation is then shown as a novel transversal platform for the design of slow releasing protein–drug depots, with potential application in a broad spectrum of clinical settings.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain; (N.S.); (C.M.-T.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
| | - Aïda Falgàs
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
| | - Annabel García-León
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
| | - Yáiza Núñez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
| | - Alejandro Sánchez-Chardi
- Servei de Microscòpia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain;
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain; (N.S.); (C.M.-T.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
| | - Esther Vazquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain; (N.S.); (C.M.-T.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
| | - Isolda Casanova
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, Badalona, 08916 Barcelona, Spain
- Correspondence: (I.C.); (A.V.)
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain; (N.S.); (C.M.-T.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain; (A.F.); (A.G.-L.); (Y.N.); (R.M.)
- Correspondence: (I.C.); (A.V.)
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6
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Serna N, Carratalá JV, Conchillo-Solé O, Martínez-Torró C, Unzueta U, Mangues R, Ferrer-Miralles N, Daura X, Vázquez E, Villaverde A. Antibacterial Activity of T22, a Specific Peptidic Ligand of the Tumoral Marker CXCR4. Pharmaceutics 2021; 13:1922. [PMID: 34834337 PMCID: PMC8621837 DOI: 10.3390/pharmaceutics13111922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/21/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022] Open
Abstract
CXCR4 is a cytokine receptor used by HIV during cell attachment and infection. Overexpressed in the cancer stem cells of more than 20 human neoplasias, CXCR4 is a convenient antitumoral drug target. T22 is a polyphemusin-derived peptide and an effective CXCR4 ligand. Its highly selective CXCR4 binding can be exploited as an agent for the cell-targeted delivery and internalization of associated antitumor drugs. Sharing chemical and structural traits with antimicrobial peptides (AMPs), the capability of T22 as an antibacterial agent remains unexplored. Here, we have detected T22-associated antimicrobial activity and biofilm formation inhibition over Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, in a spectrum broader than the reference AMP GWH1. In contrast to GWH1, T22 shows neither cytotoxicity over mammalian cells nor hemolytic activity and is active when displayed on protein-only nanoparticles through genetic fusion. Under the pushing need for novel antimicrobial agents, the discovery of T22 as an AMP is particularly appealing, not only as its mere addition to the expanding catalogue of antibacterial drugs. The recognized clinical uses of T22 might allow its combined and multivalent application in complex clinical conditions, such as colorectal cancer, that might benefit from the synchronous destruction of cancer stem cells and local bacterial biofilms.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - José Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Oscar Conchillo-Solé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
| | - Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Xavier Daura
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
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7
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Álamo P, Parladé E, López-Laguna H, Voltà-Durán E, Unzueta U, Vazquez E, Mangues R, Villaverde A. Ion-dependent slow protein release from in vivo disintegrating micro-granules. Drug Deliv 2021; 28:2383-2391. [PMID: 34747685 PMCID: PMC8584089 DOI: 10.1080/10717544.2021.1998249] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Through the controlled addition of divalent cations, polyhistidine-tagged proteins can be clustered in form of chemically pure and mechanically stable micron-scale particles. Under physiological conditions, these materials act as self-disintegrating protein depots for the progressive release of the forming polypeptide, with potential applications in protein drug delivery, diagnosis, or theragnosis. Here we have explored the in vivo disintegration pattern of a set of such depots, upon subcutaneous administration in mice. These microparticles were fabricated with cationic forms of either Zn, Ca, Mg, or Mn, which abound in the mammalian body. By using a CXCR4-targeted fluorescent protein as a reporter building block we categorized those cations regarding their ability to persist in the administration site and to sustain a slow release of functional protein. Ca2+ and specially Zn2+ have been observed as particularly good promoters of time-prolonged protein leakage. The released polypeptides result is available for selective molecular interactions, such as specific fluorescent labeling of tumor tissues, in which the protein reaches nearly steady levels.
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Affiliation(s)
- Patricia Álamo
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.,Josep Carreras Leukaemia Research Institute (IJC Campus Sant Pau), Barcelona, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Eloi Parladé
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Hèctor López-Laguna
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Eric Voltà-Durán
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ugutz Unzueta
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.,Josep Carreras Leukaemia Research Institute (IJC Campus Sant Pau), Barcelona, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Esther Vazquez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ramon Mangues
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.,Josep Carreras Leukaemia Research Institute (IJC Campus Sant Pau), Barcelona, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
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8
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López-Laguna H, Sánchez JM, Carratalá JV, Rojas-Peña M, Sánchez-García L, Parladé E, Sánchez-Chardi A, Voltà-Durán E, Serna N, Cano-Garrido O, Flores S, Ferrer-Miralles N, Nolan V, de Marco A, Roher N, Unzueta U, Vazquez E, Villaverde A. Biofabrication of functional protein nanoparticles through simple His-tag engineering. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:12341-12354. [PMID: 34603855 PMCID: PMC8483566 DOI: 10.1021/acssuschemeng.1c04256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/16/2021] [Indexed: 05/03/2023]
Abstract
We have developed a simple, robust, and fully transversal approach for the a-la-carte fabrication of functional multimeric nanoparticles with potential biomedical applications, validated here by a set of diverse and unrelated polypeptides. The proposed concept is based on the controlled coordination between Zn2+ ions and His residues in His-tagged proteins. This approach results in a spontaneous and reproducible protein assembly as nanoscale oligomers that keep the original functionalities of the protein building blocks. The assembly of these materials is not linked to particular polypeptide features, and it is based on an environmentally friendly and sustainable approach. The resulting nanoparticles, with dimensions ranging between 10 and 15 nm, are regular in size, are architecturally stable, are fully functional, and serve as intermediates in a more complex assembly process, resulting in the formation of microscale protein materials. Since most of the recombinant proteins produced by biochemical and biotechnological industries and intended for biomedical research are His-tagged, the green biofabrication procedure proposed here can be straightforwardly applied to a huge spectrum of protein species for their conversion into their respective nanostructured formats.
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Affiliation(s)
- Hèctor López-Laguna
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Julieta M. Sánchez
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Universidad
Nacional de Córdoba, Facultad de
Ciencias Exactas, Físicas y Naturales, ICTA and Departamento
de Química, Cátedra de Química
Biológica, Av. Vélez Sársfield
1611, Córdoba 5016, Argentina
- CONICET-Universidad
Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas
(IIByT), Av. Velez Sarsfield
1611, Córdoba, 5016, Argentina
| | - José Vicente Carratalá
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Mauricio Rojas-Peña
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
| | - Laura Sánchez-García
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Eloi Parladé
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Alejandro Sánchez-Chardi
- Servei de
Microscòpia, Universitat Autònoma
de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat
de Biologia, Universitat de Barcelona, Av. Diagonal 643, Barcelona 08028, Spain
| | - Eric Voltà-Durán
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Naroa Serna
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Olivia Cano-Garrido
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Sandra Flores
- Universidad
Nacional de Córdoba, Facultad de
Ciencias Exactas, Físicas y Naturales, ICTA and Departamento
de Química, Cátedra de Química
Biológica, Av. Vélez Sársfield
1611, Córdoba 5016, Argentina
- CONICET-Universidad
Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas
(IIByT), Av. Velez Sarsfield
1611, Córdoba, 5016, Argentina
| | - Neus Ferrer-Miralles
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Verónica Nolan
- Universidad
Nacional de Córdoba, Facultad de
Ciencias Exactas, Físicas y Naturales, ICTA and Departamento
de Química, Cátedra de Química
Biológica, Av. Vélez Sársfield
1611, Córdoba 5016, Argentina
- CONICET-Universidad
Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas
(IIByT), Av. Velez Sarsfield
1611, Córdoba, 5016, Argentina
| | - Ario de Marco
- Laboratory
for Environmental and Life Sciences, University
of Nova Gorica, Nova Gorica 5000, Slovenia
| | - Nerea Roher
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
- Departament
de Biologia Cel·lular, Fisiologia Animal i Immunologia, Universitat Autònoma de Barcelona, Barcelona 08193, Spain
| | - Ugutz Unzueta
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
- Biomedical
Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Ma Claret 167, Barcelona 08025, Spain
| | - Esther Vazquez
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
| | - Antonio Villaverde
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y
Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Madrid 28029, Spain
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9
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Sánchez-García L, Voltà-Durán E, Parladé E, Mazzega E, Sánchez-Chardi A, Serna N, López-Laguna H, Mitstorfer M, Unzueta U, Vázquez E, Villaverde A, de Marco A. Self-Assembled Nanobodies as Selectively Targeted, Nanostructured, and Multivalent Materials. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29406-29415. [PMID: 34129336 PMCID: PMC9262252 DOI: 10.1021/acsami.1c08092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanobodies represent valuable tools in advanced therapeutic strategies but their small size (∼2.5 × ∼ 4 nm) and limited valence for interactions might pose restrictions for in vivo applications, especially regarding their modest capacity for multivalent and cooperative interaction. In this work, modular protein constructs have been designed, in which nanobodies are fused to protein domains to provide further functionalities and to favor oligomerization into stable self-assembled nanoparticles. The nanobody specificity for their targets is maintained in such supramolecular complexes. Also, their diameter around 70 nm and multivalent interactivity should favor binding and penetrability into target cells via solvent-exposed receptor. These concepts have been supported by unrelated nanobodies directed against the ricin toxin (A3C8) and the Her2 receptor (EM1), respectively, that were modified with the addition of a reporter protein and a hexa-histidine tag at the C-terminus that promotes self-assembling. The A3C8-based nanoparticles neutralize the ricin toxin efficiently, whereas the EM1-based nanoparticles enable to selective imaging Her2-positive cells. These findings support the excellent extracellular and intracellular functionality of nanobodies organized in form of oligomeric nanoscale assemblies.
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Affiliation(s)
- Laura Sánchez-García
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Eric Voltà-Durán
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Eloi Parladé
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Elisa Mazzega
- Laboratory
for Environmental and Life Sciences, University
of Nova Gorica Nova Gorica 5000, Slovenia
| | - Alejandro Sánchez-Chardi
- Servei
de Microscòpia, Universitat Autònoma
de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat
de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Naroa Serna
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Hèctor López-Laguna
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Mara Mitstorfer
- University
of Natural Resources and Life Sciences, Department of Chemistry, Institute of Biochemistry, 1190 Vienna, Austria
| | - Ugutz Unzueta
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
- Biomedical
Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Ma̲ Claret 167, 08025 Barcelona, Spain
| | - Esther Vázquez
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Antonio Villaverde
- Institut
de Biotecnologia i de Biomedicina, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- Departament
de Genètica i de Microbiologia, Universitat
Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
- CIBER
de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, Barcelona 08193, Spain
| | - Ario de Marco
- Laboratory
for Environmental and Life Sciences, University
of Nova Gorica Nova Gorica 5000, Slovenia
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10
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Voltà-Durán E, Serna N, Sánchez-García L, Aviñó A, Sánchez JM, López-Laguna H, Cano-Garrido O, Casanova I, Mangues R, Eritja R, Vázquez E, Villaverde A, Unzueta U. Design and engineering of tumor-targeted, dual-acting cytotoxic nanoparticles. Acta Biomater 2021; 119:312-322. [PMID: 33189955 DOI: 10.1016/j.actbio.2020.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 02/07/2023]
Abstract
The possibility to conjugate tumor-targeted cytotoxic nanoparticles and conventional antitumoral drugs in single pharmacological entities would open a wide spectrum of opportunities in nanomedical oncology. This principle has been explored here by using CXCR4-targeted self-assembling protein nanoparticles based on two potent microbial toxins, the exotoxin A from Pseudomonas aeruginosa and the diphtheria toxin from Corynebacterium diphtheriae, to which oligo-floxuridine and monomethyl auristatin E respectively have been chemically coupled. The resulting multifunctional hybrid nanoconjugates, with a hydrodynamic size of around 50 nm, are stable and internalize target cells with a biological impact. Although the chemical conjugation minimizes the cytotoxic activity of the protein partner in the complexes, the concept of drug combination proposed here is fully feasible and highly promising when considering multiple drug treatments aimed to higher effectiveness or when facing the therapy of cancers with acquired resistance to classical drugs.
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11
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Microtiter plate-based antibody-competition assay to determine binding affinities and plasma/blood stability of CXCR4 ligands. Sci Rep 2020; 10:16036. [PMID: 32994431 PMCID: PMC7525492 DOI: 10.1038/s41598-020-73012-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 09/07/2020] [Indexed: 12/28/2022] Open
Abstract
C-X-C chemokine receptor type 4 (CXCR4) is involved in several intractable disease processes, including HIV infection, cancer cell metastasis, leukemia cell progression, rheumatoid arthritis, asthma and pulmonary fibrosis. Thus, CXCR4 represents a promising drug target and several CXCR4 antagonizing agents are in preclinical or clinical development. Important parameters in drug lead evaluation are determination of binding affinities to the receptor and assessment of their stability and activity in plasma or blood of animals and humans. Here, we designed a microtiter plate-based CXCR4 antibody competition assay that enables to measure inhibitory concentrations (IC50 values) and affinity constants (Ki values) of CXCR4 targeting drugs. The assay is based on the observation that most if not all CXCR4 antagonists compete with binding of the fluorescence-tagged CXCR4 antibody 12G5 to the receptor. We demonstrate that this antibody-competition assay allows a convenient and cheap determination of binding affinities of various CXCR4 antagonists in living cells within just 3 h. Moreover, the assay can be performed in the presence of high concentrations of physiologically relevant body fluids, and thus is a useful readout to evaluate stability (i.e. half-life) of CXCR4 ligands in serum/plasma, and even whole human and mouse blood ex vivo. Thus, this optimized 12G5 antibody-competition assay allows a robust and convenient determination and calculation of various important pharmacological parameters of CXCR4 receptor-drug interaction and may not only foster future drug development but also animal welfare by reducing the number of experimental animals.
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12
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Sánchez-García L, Sala R, Serna N, Álamo P, Parladé E, Alba-Castellón L, Voltà-Durán E, Sánchez-Chardi A, Unzueta U, Vázquez E, Mangues R, Villaverde A. A refined cocktailing of pro-apoptotic nanoparticles boosts anti-tumor activity. Acta Biomater 2020; 113:584-596. [PMID: 32603867 DOI: 10.1016/j.actbio.2020.06.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 12/21/2022]
Abstract
A functional 29 amino acid-segment of the helix α5 from the human BAX protein has been engineered for production in recombinant bacteria as self-assembling, GFP-containing fluorescent nanoparticles, which are targeted to the tumoral marker CXCR4. These nanoparticles, of around 34 nm in diameter, show a moderate tumor biodistribution and limited antitumoral effect when systemically administered to mouse models of human CXCR4+ colorectal cancer (at 300 μg dose). However, if such BAX nanoparticles are co-administered in cocktail with equivalent nanoparticulate versions of BAK and PUMA proteins at the same total protein dose (300 μg), protein biodistribution and stability in tumor is largely improved, as determined by fluorescence profiles. This fact leads to a potent and faster destruction of tumor tissues when compared to individual pro-apoptotic factors. The analysis and interpretation of the boosted effect, from both the structural and functional sides, offers clues for the design of more efficient nanomedicines and theragnostic agents in oncology based on precise cocktails of human proteins. STATEMENT OF SIGNIFICANCE: Several human pro-apoptotic peptides (namely BAK, BAX and PUMA) have been engineered as self-assembling protein nanoparticles targeted to the tumoral marker CXCR4. The systemic administration of the same final amounts of those materials as single drugs, or as combinations of two or three of them, shows disparate intensities of antitumoral effects in a mouse model of human colorectal cancer, which are boosted in the triple combination on a non-additive basis. The superiority of the combined administration of pro-apoptotic agents, acting at different levels of the apoptotic cascade, opens a plethora of possibilities for the development of effective and selective cancer therapies based on the precise cocktailing of pro-apoptotic nanoparticulate agents.
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13
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Sánchez JM, López‐Laguna H, Álamo P, Serna N, Sánchez‐Chardi A, Nolan V, Cano‐Garrido O, Casanova I, Unzueta U, Vazquez E, Mangues R, Villaverde A. Artificial Inclusion Bodies for Clinical Development. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902420. [PMID: 32042562 PMCID: PMC7001620 DOI: 10.1002/advs.201902420] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/30/2019] [Indexed: 05/05/2023]
Abstract
Bacterial inclusion bodies (IBs) are mechanically stable protein particles in the microscale, which behave as robust, slow-protein-releasing amyloids. Upon exposure to cultured cells or upon subcutaneous or intratumor injection, these protein materials secrete functional IB polypeptides, functionally mimicking the endocrine release of peptide hormones from secretory amyloid granules. Being appealing as delivery systems for prolonged protein drug release, the development of IBs toward clinical applications is, however, severely constrained by their bacterial origin and by the undefined and protein-to-protein, batch-to-batch variable composition. In this context, the de novo fabrication of artificial IBs (ArtIBs) by simple, cell-free physicochemical methods, using pure components at defined amounts is proposed here. By this, the resulting functional protein microparticles are intriguing, chemically defined biomimetic materials that replicate relevant functionalities of natural IBs, including mammalian cell penetration and local or remote release of functional ArtIB-forming protein. In default of severe regulatory issues, the concept of ArtIBs is proposed as a novel exploitable category of biomaterials for biotechnological and biomedical applications, resulting from simple fabrication and envisaging soft developmental routes to clinics.
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Affiliation(s)
- Julieta M. Sánchez
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT) (CONICET‐Universidad Nacional de Córdoba)ICTA & Cátedra de Química BiológicaDepartamento de QuímicaFCEFyN, UNC. Av. Velez Sarsfield 1611X 5016GCACórdobaArgentina
| | - Hèctor López‐Laguna
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Departament de Genètica i de MicrobiologiaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
| | - Patricia Álamo
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
- Biomedical Research Institute Sant Pau (IIB‐Sant Pau) and Josep Carreras Research InstituteHospital de la Santa Creu i Sant Pau08041BarcelonaSpain
| | - Naroa Serna
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Departament de Genètica i de MicrobiologiaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
| | | | - Verónica Nolan
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT) (CONICET‐Universidad Nacional de Córdoba)ICTA & Cátedra de Química BiológicaDepartamento de QuímicaFCEFyN, UNC. Av. Velez Sarsfield 1611X 5016GCACórdobaArgentina
| | - Olivia Cano‐Garrido
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Departament de Genètica i de MicrobiologiaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Present address:
Nanoligent SLEdifici EurekaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
| | - Isolda Casanova
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
- Biomedical Research Institute Sant Pau (IIB‐Sant Pau) and Josep Carreras Research InstituteHospital de la Santa Creu i Sant Pau08041BarcelonaSpain
| | - Ugutz Unzueta
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
- Biomedical Research Institute Sant Pau (IIB‐Sant Pau) and Josep Carreras Research InstituteHospital de la Santa Creu i Sant Pau08041BarcelonaSpain
| | - Esther Vazquez
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Departament de Genètica i de MicrobiologiaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
| | - Ramon Mangues
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
- Biomedical Research Institute Sant Pau (IIB‐Sant Pau) and Josep Carreras Research InstituteHospital de la Santa Creu i Sant Pau08041BarcelonaSpain
| | - Antonio Villaverde
- Institut de Biotecnologia i de BiomedicinaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- Departament de Genètica i de MicrobiologiaUniversitat Autònoma de BarcelonaBellaterra08193BarcelonaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER‐BBN)28029MadridSpain
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14
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Céspedes MV, Cano-Garrido O, Álamo P, Sala R, Gallardo A, Serna N, Falgàs A, Voltà-Durán E, Casanova I, Sánchez-Chardi A, López-Laguna H, Sánchez-García L, Sánchez JM, Unzueta U, Vázquez E, Mangues R, Villaverde A. Engineering Secretory Amyloids for Remote and Highly Selective Destruction of Metastatic Foci. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907348. [PMID: 31879981 DOI: 10.1002/adma.201907348] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/28/2019] [Indexed: 05/05/2023]
Abstract
Functional amyloids produced in bacteria as nanoscale inclusion bodies are intriguing but poorly explored protein materials with wide therapeutic potential. Since they release functional polypeptides under physiological conditions, these materials can be potentially tailored as mimetic of secretory granules for slow systemic delivery of smart protein drugs. To explore this possibility, bacterial inclusion bodies formed by a self-assembled, tumor-targeted Pseudomonas exotoxin (PE24) are administered subcutaneously in mouse models of human metastatic colorectal cancer, for sustained secretion of tumor-targeted therapeutic nanoparticles. These proteins are functionalized with a peptidic ligand of CXCR4, a chemokine receptor overexpressed in metastatic cancer stem cells that confers high selective cytotoxicity in vitro and in vivo. In the mouse models of human colorectal cancer, time-deferred anticancer activity is detected after the subcutaneous deposition of 500 µg of PE24-based amyloids, which promotes a dramatic arrest of tumor growth in the absence of side toxicity. In addition, long-term prevention of lymphatic, hematogenous, and peritoneal metastases is achieved. These results reveal the biomedical potential and versatility of bacterial inclusion bodies as novel tunable secretory materials usable in delivery, and they also instruct how therapeutic proteins, even with high functional and structural complexity, can be packaged in this convenient format.
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Affiliation(s)
- María Virtudes Céspedes
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Olivia Cano-Garrido
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Nanoligent SL, Edifici EUREKA, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Patricia Álamo
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Rita Sala
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Alberto Gallardo
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Naroa Serna
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Aïda Falgàs
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Eric Voltà-Durán
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Isolda Casanova
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | | | - Hèctor López-Laguna
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Laura Sánchez-García
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Julieta M Sánchez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT) (CONICET-Universidad Nacional de Córdoba), ICTA & Cátedra de Química Biológica, Departamento de Química, FCEFyN, UNC, Av. Velez Sarsfield 1611, X 5016GCA, Córdoba, Argentina
| | - Ugutz Unzueta
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Esther Vázquez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
| | - Antonio Villaverde
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029, Madrid, Spain
- Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041, Barcelona, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
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15
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Sala R, Sánchez-García L, Serna N, Céspedes MV, Casanova I, Roldán M, Sánchez-Chardi A, Unzueta U, Vázquez E, Mangues R, Villaverde A. Collaborative membrane activity and receptor-dependent tumor cell targeting for precise nanoparticle delivery in CXCR4 + colorectal cancer. Acta Biomater 2019; 99:426-432. [PMID: 31494293 DOI: 10.1016/j.actbio.2019.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 08/06/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022]
Abstract
By the appropriate selection of functional peptides and proper accommodation sites, we have generated a set of multifunctional proteins that combine selectivity for CXCR4+ cell binding and relevant endosomal escape capabilities linked to the viral peptide HA2. In particular, the construct T22-GFP-HA2-H6 forms nanoparticles that upon administration in mouse models of human, CXCR4+ colorectal cancer, accumulates in primary tumor at levels significantly higher than the parental T22-GFP-H6 HA2-lacking version. The in vivo application of a CXCR4 antagonist has confirmed the prevalence of the CXCR4+ tumor tissue selectivity over unspecific cell penetration, upon systemic administration of the material. Such specificity is combined with improved endosomal escape, what overall results in a precise and highly efficient tumor biodistribution. These data strongly support the functional recruitment as a convenient approach to generate protein materials for clinical applications. More precisely, they also support the unexpected concept that enhancing the unspecific membrane activity of a protein material does not necessarily compromise, but it can even improve, the selective cell targeting offered by an accompanying functional module. STATEMENT OF SIGNIFICANCE: We have shown here that the combination of cell-penetrating and tumor cell-targeting peptides dramatically enhances precise tumor accumulation of protein-only nanoparticles intended for selective drug delivery, in mouse models of human colorectal cancer. This fact is a step forward for the rational design of multifunctional protein nanomaterials for improved cancer therapies.
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Affiliation(s)
- Rita Sala
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Laura Sánchez-García
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Naroa Serna
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - María Virtudes Céspedes
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Isolda Casanova
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Mònica Roldán
- Unitat de Microscòpia Confocal, Servei d'Anatomia Patològica, Institut Pediàtric de Malalties Rares (IPER), Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain; Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain
| | - Alejandro Sánchez-Chardi
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Ugutz Unzueta
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Esther Vázquez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut d'Investigacions Biomèdiques Sant Pau and Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Antonio Villaverde
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain.
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16
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Adlere I, Caspar B, Arimont M, Dekkers S, Visser K, Stuijt J, de Graaf C, Stocks M, Kellam B, Briddon S, Wijtmans M, de Esch I, Hill S, Leurs R. Modulators of CXCR4 and CXCR7/ACKR3 Function. Mol Pharmacol 2019; 96:737-752. [DOI: 10.1124/mol.119.117663] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/14/2019] [Indexed: 02/06/2023] Open
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17
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Chemokine-Derived Peptides: Novel Antimicrobial and Antineoplasic Agents. Int J Mol Sci 2015; 16:12958-85. [PMID: 26062132 PMCID: PMC4490481 DOI: 10.3390/ijms160612958] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 05/03/2015] [Accepted: 05/08/2015] [Indexed: 12/19/2022] Open
Abstract
Chemokines are a burgeoning family of chemotactic cytokines displaying a broad array of functions such as regulation of homeostatic leukocyte traffic and development, as well as activating the innate immune system. Their role in controlling early and late inflammatory stages is now well recognized. An improper balance either in chemokine synthesis or chemokine receptor expression contributes to various pathological disorders making chemokines and their receptors a useful therapeutic target. Research in this area is progressing rapidly, and development of novel agents based on chemokine/chemokine receptors antagonist functions are emerging as attractive alternative drugs. Some of these novel agents include generation of chemokine-derived peptides (CDP) with potential agonist and antagonist effects on inflammation, cancer and against bacterial infections. CDP have been generated mainly from N- and C-terminus chemokine sequences with subsequent modifications such as truncations or elongations. In this review, we present a glimpse of the different pharmacological actions reported for CDP and our current understanding regarding the potential use of CDP alone or as part of the novel therapies proposed in the treatment of microbial infections and cancer.
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18
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Gu WG, Zhang X, Yuan JF. Anti-HIV drug development through computational methods. AAPS JOURNAL 2014; 16:674-80. [PMID: 24760437 DOI: 10.1208/s12248-014-9604-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 04/02/2014] [Indexed: 11/30/2022]
Abstract
Although highly active antiretroviral therapy (HAART) is effective in controlling the progression of AIDS, the emergence of drug-resistant strains increases the difficulty of successful treatment of patients with HIV infection. Increasing numbers of patients are facing the dilemma that comes with the running out of drug combinations for HAART. Computational methods play a key role in anti-HIV drug development. A substantial number of studies have been performed in anti-HIV drug development using various computational methods, such as virtual screening, QSAR, molecular docking, and homology modeling, etc. In this review, we summarize recent advances in the application of computational methods to anti-HIV drug development for five key targets as follows: reverse transcriptase, protease, integrase, CCR5, and CXCR4. We hope that this review will stimulate researchers from multiple disciplines to consider computational methods in the anti-HIV drug development process.
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Affiliation(s)
- Wan-Gang Gu
- Department of Immunology, Zunyi Medical University, Zunyi, 563003, Guizhou, China,
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19
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Vitale RM, Gatti M, Carbone M, Barbieri F, Felicità V, Gavagnin M, Florio T, Amodeo P. Minimalist hybrid ligand/receptor-based pharmacophore model for CXCR4 applied to a small-library of marine natural products led to the identification of phidianidine a as a new CXCR4 ligand exhibiting antagonist activity. ACS Chem Biol 2013; 8:2762-70. [PMID: 24102412 DOI: 10.1021/cb400521b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here, we present a minimal hybrid ligand/receptor-based pharmacophore model (PM) for CXCR4, a chemokine receptor deeply involved in several pathologies, such as HIV infection, rheumatoid arthritis, cancer development/progression, and metastasization. This model, considerably simpler than those thus far proposed for this receptor, has been used to search for new CXCR4 inhibitors in a small marine natural product library available at ICB-CNR Institute (Pozzuoli, NA, Italy), since natural products, with their naturally selected chemical and functional diversity, represent a rich source of bioactive scaffolds; computational approaches allow searching for new scaffolds with a minimal waste of possibly precious natural product samples; and our "stripped-down" model substantially increases the probabilities of identifying potential hits even in small-sized libraries. This search, also validated by a systematic virtual screening of the same library, has led to the identification of a new CXCR4 ligand, phidianidine A (PHIA). Docking studies supported PHIA activity and suggested its possible binding modes to CXCR4. Using the CXCR4-expressing/CXCR7-negative GH4C1 cell line we show that PHIA inhibits CXCL12-induced DNA synthesis, cell migration, and ERK1/2 activation. The specificity of these effects was confirmed by the lack of PHIA activity in GH4C1 cells, in which siRNA highly reduces CXCR4 expression and the lack of cytoxicity of PHIA was also verified. Thus, PHIA represents a promising lead for a new family of CXCR4 modulators with wide margins of improvement in potency and specificity offered by the small and very simple underlying PM.
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Affiliation(s)
- Rosa Maria Vitale
- Institute of Biomolecular Chemistry (ICB) of the National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Monica Gatti
- Section
of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
| | - Marianna Carbone
- Institute of Biomolecular Chemistry (ICB) of the National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Federica Barbieri
- Section
of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
- Center
of Excellence for Biomedical Research (CEBR), University of Genova, 16132 Genova, Italy
| | - Vera Felicità
- Institute of Biomolecular Chemistry (ICB) of the National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
- Department
of Health Science, “Magna Græcia”, University, 88100, Catanzaro, Italy
| | - Margherita Gavagnin
- Institute of Biomolecular Chemistry (ICB) of the National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Tullio Florio
- Section
of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
- Center
of Excellence for Biomedical Research (CEBR), University of Genova, 16132 Genova, Italy
| | - Pietro Amodeo
- Institute of Biomolecular Chemistry (ICB) of the National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
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20
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Eade CR, Wood MP, Cole AM. Mechanisms and modifications of naturally occurring host defense peptides for anti-HIV microbicide development. Curr HIV Res 2012; 10:61-72. [PMID: 22264047 DOI: 10.2174/157016212799304580] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 09/30/2011] [Accepted: 10/27/2011] [Indexed: 11/22/2022]
Abstract
Despite advances in the treatment of HIV infection, heterosexual transmission of HIV remains high, and vaccines to prevent HIV acquisition have been unfruitful. Vaginal microbicides, on the other hand, have demonstrated considerable potential for HIV prevention, and a variety of compounds have been screened for their activity and safety as anti-HIV microbicides. Among these are the naturally occurring host defense peptides, small peptides from diverse lineages with intrinsic antiviral activity. Naturally occurring host defense peptides with anti-HIV activity are promising candidates for vaginal microbicide development. Their structural variance and accompanying mechanistic diversity provide a wide range of inhibitors whose antiviral activity can be exerted at nearly every stage of the HIV lifecycle. Additionally, peptide modification has been explored as a method for improving the anti-HIV activity of host defense peptides. Structure- and sequence-based alterations have achieved varying success in improving the potency and specificity of anti-HIV peptides. Overall, peptides have been discovered or engineered to inhibit HIV with therapeutic indices of > 1000, encouraging their advancement toward clinical trials. Here we review the naturally occurring anti-HIV host defense peptides, demonstrating their breadth of mechanistic diversity, and exploring approaches to enhance and optimize their activity in order to expedite their development as safe and effective anti-HIV vaginal microbicides.
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Affiliation(s)
- Colleen R Eade
- Department of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL 32816, USA.
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21
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Åberg O, Pisaneschi F, Smith G, Nguyen QD, Stevens E, Aboagye EO. 18F-labelling of a cyclic pentapeptide inhibitor of the chemokine receptor CXCR4. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2011.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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22
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Oishi S, Fujii N. Peptide and peptidomimetic ligands for CXC chemokine receptor 4 (CXCR4). Org Biomol Chem 2012; 10:5720-31. [DOI: 10.1039/c2ob25107h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Chevigné A, Fischer A, Mathu J, Counson M, Beaupain N, Plesséria JM, Schmit JC, Deroo S. Selection of a CXCR4 antagonist from a human heavy chain CDR3-derived phage library. FEBS J 2011; 278:2867-78. [DOI: 10.1111/j.1742-4658.2011.08208.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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24
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Retrocyclins and their activity against HIV-1. Cell Mol Life Sci 2011; 68:2231-42. [PMID: 21553001 PMCID: PMC4511374 DOI: 10.1007/s00018-011-0715-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 04/26/2011] [Accepted: 04/26/2011] [Indexed: 12/19/2022]
Abstract
Primate theta-defensins are physically distinguished as the only known fully-cyclic peptides of animal origin. Humans do not produce theta-defensin peptides due to a premature stop codon present in the signal sequence of all six theta-defensin pseudogenes. Instead, since the putative coding regions of human theta-defensin pseudogenes have remained remarkably intact, their corresponding peptides, called “retrocyclins”, have been recreated using solid-phase synthetic approaches. Retrocyclins exhibit an exceptional therapeutic index both as inhibitors of HIV-1 entry and as bactericidal agents, which makes retrocyclins promising candidates for further development as topical microbicides to prevent sexually transmitted diseases. This review presents the evolution, antiretroviral mechanism of action, and potential clinical applications of retrocyclins to prevent sexual transmission of HIV-1.
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25
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Galanakis PA, Kandias NG, Rizos AK, Morikis D, Krambovitis E, Spyroulias GA. NMR evidence of charge-dependent interaction between various PND V3 and CCR5 N-terminal peptides. Biopolymers 2009; 92:94-109. [PMID: 19117029 DOI: 10.1002/bip.21127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The third variable (V3) loop is an important region of glycoprotein 120 (gp120) for many biological processes, as it contains the highly conserved GPGR sequence and it represents the binding site for human immunodeficiency virus 1 (HIV-1) antibodies and for CCR5 and CXCR4 host cell coreceptors. The interaction of the principal neutralizing determinant (PND) V3 with the chemokine receptor CCR5 N-terminal region has been reported to be crucial for HIV-1 infection. The goal of this study is to characterize the solution structures of three HIV-1 gp120 V3 subtype B peptides and their interaction with a nonsulfated N-terminal CCR5 peptide. NMR titration experiments revealed that the CCR5Nt-PND V3 interaction is dependent on the number of the positively charged V3 residues, which is in agreement with the observation that increase in positive charge in the V3 sequence correlates with the augmentation of the interaction. As expected for free peptides in solution, the peptides representing the PND V3 region of gp120 exhibit conformational flexibility, but they also exhibit a large number of NOEs which allowed convergence to a dominant conformation. The PND V3 peptides retain the U-turn conformation observed in the crystal structures of gp120 complexes independently of CCR5 presence. The interaction of different regions of the CCR5Nt peptide is gradually increasing proportionally to the positive charge increase in the V3 peptides. The data demonstrate that the PND V3 and CCR5Nt peptide sequences have propensities for interaction even in the absence of sulfated tyrosines and that their binding and selectivity is determined by simple electrostatic attraction mechanisms.
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Affiliation(s)
- Petros A Galanakis
- Department of Pharmacy, University of Patras, Panepistimioupoli-Rion, Patras, Greece
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26
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Chemokines as Possible Targets in Modulation of the Secondary Damage After Acute Spinal Cord Injury: A Review. Cell Mol Neurobiol 2009; 29:1025-35. [DOI: 10.1007/s10571-009-9392-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Accepted: 03/10/2009] [Indexed: 12/23/2022]
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27
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Shim H, Oishi S, Fujii N. Chemokine receptor CXCR4 as a therapeutic target for neuroectodermal tumors. Semin Cancer Biol 2008; 19:123-34. [PMID: 19084067 DOI: 10.1016/j.semcancer.2008.11.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Revised: 11/17/2008] [Accepted: 11/17/2008] [Indexed: 12/20/2022]
Abstract
Chemokines (chemotactic cytokines) are a family of proteins associated with the trafficking and activation of leukocytes and other cell types in immune surveillance and inflammatory response. Besides their roles in the immune system, they play pleiotropic roles in tumor initiation, promotion, and progression. Chemokines can be classified into four subfamilies of chemokines, CXC, CC, C, or CX3C, based on their number and spacing of conserved cysteine residues near the N-terminus. This CXC subfamily can be further subclassified into two groups, depending on the presence or absence of a tripeptide motif glutamic acid-leucine-arginine (ELR) in the N-terminal domain. ELR(-)CXCL12, which binds to CXCR4 has been frequently implicated in various cancers. Over the past several years, studies have increasingly shown that the CXCR4/CXCL12 axis plays critical roles in tumor progression, such as invasion, angiogenesis, survival, homing to metastatic sites. This review focuses on involvement of CXCR4/CXCL12 interaction in neuroectodermal cancers and their therapeutic potentials. As an attractive therapeutic target of CXCR4/CXCL12 axis for cancer chemotherapy, development history and application of CXCR4 antagonists are described.
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Affiliation(s)
- Hyunsuk Shim
- Department of Radiology, Emory University, Atlanta, GA 30322, USA
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28
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Abstract
In this review, the author discusses recent advances in anti-HIV inhibitors, targeting CXCR4, including natural and modified chemokines, peptides and organic compounds, their mechanisms of action, and the molecular process of virus invasion of immune cells. Peptides with strong anti-HIV activity exhibit several common features, such as electrostatic charges, cyclization, beta-turns and dimerization induced by a sulphide bond. Organic compounds, such as cyclams, display a unique metal-mediated mechanism in the binding process to its target CXCR4. Understanding of their mechanisms of action may be useful for the design of more effective drugs. Consecutive interactions of viral glycoprotein gp120 with CD4 and the co-receptor, CXCR4 or another co-receptor CCR5 on the cell surface leads to virus invasion into host cells. The molecular details of the binding between HIV glycoproteins and the co-receptors also provide a basis for anti-HIV therapy.
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Affiliation(s)
- Xiangyang Liang
- Department of Biochemistry, 117 Schweitzer Hall, University of Missouri, Columbia, MO 65211, USA.
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29
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Hachet-Haas M, Balabanian K, Rohmer F, Pons F, Franchet C, Lecat S, Chow KYC, Dagher R, Gizzi P, Didier B, Lagane B, Kellenberger E, Bonnet D, Baleux F, Haiech J, Parmentier M, Frossard N, Arenzana-Seisdedos F, Hibert M, Galzi JL. Small neutralizing molecules to inhibit actions of the chemokine CXCL12. J Biol Chem 2008; 283:23189-99. [PMID: 18556651 DOI: 10.1074/jbc.m803947200] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The chemokine CXCL12 and the receptor CXCR4 play pivotal roles in normal vascular and neuronal development, in inflammatory responses, and in infectious diseases and cancer. For instance, CXCL12 has been shown to mediate human immunodeficiency virus-induced neurotoxicity, proliferative retinopathy and chronic inflammation, whereas its receptor CXCR4 is involved in human immunodeficiency virus infection, cancer metastasis and in the rare disease known as the warts, hypogammaglobulinemia, immunodeficiency, and myelokathexis (WHIM) syndrome. As we screened chemical libraries to find inhibitors of the interaction between CXCL12 and the receptor CXCR4, we identified synthetic compounds from the family of chalcones that reduce binding of CXCL12 to CXCR4, inhibit calcium responses mediated by the receptor, and prevent CXCR4 internalization in response to CXCL12. We found that the chemical compounds display an original mechanism of action as they bind to the chemokine but not to CXCR4. The highest affinity molecule blocked chemotaxis of human peripheral blood lymphocytes ex vivo. It was also active in vivo in a mouse model of allergic eosinophilic airway inflammation in which we detected inhibition of the inflammatory infiltrate. The compound showed selectivity for CXCL12 and not for CCL5 and CXCL8 chemokines and blocked CXCL12 binding to its second receptor, CXCR7. By analogy to the effect of neutralizing antibodies, this molecule behaves as a small organic neutralizing compound that may prove to have valuable pharmacological and therapeutic potential.
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Affiliation(s)
- Muriel Hachet-Haas
- Institut Gilbert Laustriat Biomolécules, Biotechnologie, Innovation thérapeutique, Université Louis Pasteur, 67401 Illkirch, France
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30
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Che Y, Marshall GR. Privileged scaffolds targeting reverse-turn and helix recognition. Expert Opin Ther Targets 2008; 12:101-14. [PMID: 18076374 DOI: 10.1517/14728222.12.1.101] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Protein-protein interactions dominate molecular recognition in biologic systems. One major challenge for drug discovery arises from the very large surfaces that are characteristic of many protein-protein interactions. OBJECTIVES To identify 'drug-like' small molecule leads capable of modulating protein-protein interactions based on common protein-recognition motifs, such as alpha-helices, beta-strands, reverse-turns and polyproline motifs for example. OVERVIEW Many proteins/peptides are unstructured under physiologic conditions and only fold into ordered structures on binding to their cellular targets. Therefore, preorganization of an inhibitor into its protein-bound conformation reduces the entropy of binding and enhances the relative affinity of the inhibitor. Accordingly, this review describes a general strategy to address the challenge based on the 'privileged structure hypothesis' [Che, PhD thesis, Washington University, 2003] that chemical templates capable of mimicking surfaces of protein-recognition motifs are potential privileged scaffolds as small-molecule inhibitors of protein-protein interactions. The authors highlight recent advances in the design of privileged scaffolds targeting reverse-turn and helical recognition. CONCLUSIONS Privileged scaffolds targeting common protein-recognition motifs are useful to help elucidate the receptor-bound conformation and to provide non-peptidic, bioavailable substructures suitable for optimization to modulate protein-protein interactions.
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Affiliation(s)
- Ye Che
- Washington University, Center for Computational Biology and Department of Biochemistry and Molecular Biophysics, St. Louis, MO 63110, USA
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31
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Abstract
Host defence peptides are a conserved component of the innate immune response in all complex life forms. In humans, the major classes of host defence peptides include the α- and β-defensins and the cathelicidin, hCAP-18/LL-37. These peptides are expressed in the granules of neutrophils and by a wide variety of tissue types. They have many roles in the immune response including both indirect and direct antimicrobial activity, the ability to act as chemokines as well as induce chemokine production leading to recruitment of leukocytes to the site of infection, the promotion of wound healing and an ability to modulate adaptive immunity. It appears that many of these properties are mediated though direct interaction of peptides with the cells of the innate immune response including monocytes, dendritic cells, T cells and epithelial cells. The importance of these peptides in immune responses has been demonstrated since animals defective in the expression of certain host defence peptides showgreater susceptibility to bacterial infections. In the very few instances in which human patients have been demonstrated to have defective host defence peptide expression, these individuals suffer from frequent infections. Although studies of the immunomodulatory properties of these peptides are in their infancy, there is a growing body of evidence suggesting that the immunomodulatory properties of these small, naturally occurring molecules might be harnessed for development as novel therapeutic agents.
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Affiliation(s)
- William M. Shafer
- Department of Microbiology and Immunology, 3001 Rollins Research Center, Emory University School of Medicine, Atlanta, GA 30322 USA
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33
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Martín-García J, Kolson DL, González-Scarano F. Chemokine receptors in the brain: their role in HIV infection and pathogenesis. AIDS 2002; 16:1709-30. [PMID: 12218382 DOI: 10.1097/00002030-200209060-00003] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Julio Martín-García
- Department of Neurology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
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34
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Abstract
Peptide recognition by G-protein coupled receptors (GPCRs) is reviewed with an emphasis on the indirect approach used to determine the receptor-bound conformation of peptide ligands. This approach was developed in response to the lack of detailed structural information available for these receptors. Recent advances in the structural determination of rhodopsin (the GPCR of the visual system) by crystallography have provided a scaffold for homology modeling of the inactive state of a wide variety of GPCRs that interact with peptide messages. Additionally, the ability to mutate GPCRs and assay compounds of similar chemical structure to test a common binding site on the receptor provides a firm experimental basis for structure-activity studies. Recognition motifs, common in other well-studied systems such as proteolytic enzymes and major histocompatibility class receptors (MHC) are reviewed briefly to provide a basis of comparison. Finally, the development of true peptidomimetics is contrasted with nonpeptide ligands, discovered through combinatorial chemistry. In many systems, the evidence suggests that the peptide ligands bind at the interface between the transmembrane segments and the extracellular loops, while nonpeptide antagonists bind within the transmembrane segments. Plausible models of GPCRs and the mechanism by which they activate G-proteins on binding peptides are beginning to emerge.
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Affiliation(s)
- G R Marshall
- Center for Computational Biology, 700 S. Euclid Avenue, Washington University, St. Louis, MO 63110, USA.
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35
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Rey-Cuille MA, Hu SL. Conserved CXCR4 usage and enhanced replicative capacity of HIV-2/287, an isolate highly pathogenic in Macaca nemestrina. AIDS 2001; 15:2349-57. [PMID: 11740185 DOI: 10.1097/00002030-200112070-00002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To investigate viral properties that contribute to the pathogenic potential of HIV-2 in macaques. DESIGN We compared HIV-2/287, a virus highly pathogenic in Macaca nemestrina, with its non-pathogenic progenitor HIV-2 EHO, for coreceptor usage and ability to infect human and macaque peripheral blood mononuclear cells (PBMC). METHODS Coreceptor usage was determined in GHOST cells expressing known coreceptors, and in PBMC with coreceptor-specific inhibitors. Infectivity in PBMC was determined by virus titration and p27 antigen production. Early and late products of reverse transcription were measured by PCR with primers specific for the long terminal repeat (LTR), or the gag region, respectively. RESULTS Both viruses preferentially infect HOS-CD4 cells expressing CXCR4. Inhibition by CXCR4-specific peptide TW70 and monoclonal antibody 12G5 indicated that both viruses use predominantly CXCR4 to infect macaque and human PBMC. HIV-2/287 showed greater infectivity than HIV-2 EHO in macaque cells, but the situation was reversed in human cells. Kinetic analysis of reverse transcription products revealed no restriction in reverse transcription following HIV-2 EHO infection of macaque PBMC. However, comparison of the level of newly initiated HIV-2 EHO DNA in macaque and human PBMC indicated that there is an early restriction, prior to the initiation of reverse transcription. CONCLUSIONS Results indicate that the adaptation of HIV-2 EHO in M. nemestrina to a highly pathogenic virus HIV-2/287 is not correlated with a shift in or an expansion of coreceptor usage, but with the acquisition of an ability to overcome restrictions for growth in macaque PBMC.
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Affiliation(s)
- M A Rey-Cuille
- Regional Primate Research Center, University of Washington, Seattle, Washington 98121, USA
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36
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Affiliation(s)
- Tatjana Dragic
- Albert Einstein College of Medicine, Department of Microbiology and Immunology, 1300 Morris Park Ave, Bronx, NY 10461, USA1
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37
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Agrawal L, Alkhatib G, Agrawal L. Chemokine receptors: emerging opportunities for new anti-HIV therapies. Expert Opin Ther Targets 2001; 5:303-326. [PMID: 12540267 DOI: 10.1517/14728222.5.3.303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The chemokine receptors CCR5 and CXCR4 are G-protein coupled receptors (GPCRs) of the immune system and the major co-receptors required for entry of HIV into CD4(+) target cells. CCR5 is critical for both human immunodeficiency virus (HIV) disease transmission and progression, whereas CXCR4 may be very important in late stages of disease. Additional co-receptors have been shown to function under certain conditions in vitro but evidence of supporting roles in HIV disease is currently lacking. The sheer number of co-receptors potentially used by HIV and the complexity of co-receptors usage are major challenges confronting usage of these molecules as drug development targets. Balanced against this, is a long history of success by the pharmaceutical industry in developing small molecule antagonists for many other classes of GPCRs. In this review, we discuss the current state of understanding of the co-receptor-based antiviral agents designed to block viral entry. The therapeutic potential of this field will be judged from future studies on the efficacy of these novel inhibitors in clinical trials. The data so far obtained from a number of studies point to the potential clinical use of this emerging class of therapeutic agents. Here we review current progress in co-receptor-based antiretroviral drug development and discuss the potential advantages and disadvantages of this approach.
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Affiliation(s)
- Lokesh Agrawal
- Department of Microbiology and Immunology, Walther Oncology Center, Indiana University School of Medicine, 1044 W Walnut Street, Room 302, Indianapolis, IN 46202, USA
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Murakami T, Zhang TY, Koyanagi Y, Tanaka Y, Kim J, Suzuki Y, Minoguchi S, Tamamura H, Waki M, Matsumoto A, Fujii N, Shida H, Hoxie JA, Peiper SC, Yamamoto N. Inhibitory mechanism of the CXCR4 antagonist T22 against human immunodeficiency virus type 1 infection. J Virol 1999; 73:7489-96. [PMID: 10438838 PMCID: PMC104275 DOI: 10.1128/jvi.73.9.7489-7496.1999] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We recently reported that a cationic peptide, T22 ([Tyr(5,12), Lys(7)]-polyphemusin II), specifically inhibits human immunodeficiency virus type 1 (HIV-1) infection mediated by CXCR4 (T. Murakami et al., J. Exp. Med. 186:1389-1393, 1997). Here we demonstrate that T22 effectively inhibits replication of T-tropic HIV-1, including primary isolates, but not of non-T-tropic strains. By using a panel of chimeric viruses between T- and M-tropic HIV-1 strains, viral determinants for T22 susceptibility were mapped to the V3 loop region of gp120. T22 bound to CXCR4 and interfered with stromal-cell-derived factor-1alpha-CXCR4 interactions in a competitive manner. Blocking of anti-CXCR4 monoclonal antibodies by T22 suggested that the peptide interacts with the N terminus and two of the extracellular loops of CXCR4. Furthermore, the inhibition of cell-cell fusion in cells expressing CXCR4/CXCR2 chimeric receptors suggested that determinants for sensitivity of CXCR4 to T22 include the three extracellular loops of the coreceptor.
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Affiliation(s)
- T Murakami
- Department of Microbiology and Molecular Virology, Faculty of Medicine, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
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Abstract
Despite the youth of the chemokine field, many antagonists of chemokine function have already been identified and tested at the preclinical level. These include neutralizing antibodies, peptidyl and non-peptidyl antagonists and non-specific immunosuppressive agents. These early studies suggest that chemokine agonists have the potential to regulate many diseases, ranging from HIV-1 infection and tumor growth to acute and chronic inflammation. Clinical application will depend on pharmaceutical development. Great strides have been made in defining structural domains of the chemokines involved in receptor binding and activation. The identification of receptors is rapidly progressing, but with 50 potential ligands and 15 characterized receptors, it is obvious that additional molecular studies are needed. The intriguing observation that several pathogens either use chemokine receptors as entry portals or produce chemokine decoys to subvert the immune system suggests that there is much to be learned about the immune system from studies of "virokines." Future studies should lead to the discovery and design of more effective inhibitors and antagonists with therapeutic benefit.
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Affiliation(s)
- O M Howard
- Laboratory of Molecular Immunoregulation, Division of Basic Sciences, Frederick Cancer Research and Development Center, NCI and IRSP, SAIC Frederick, Maryland, USA
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Xu Y, Tamamura H, Arakaki R, Nakashima H, Zhang X, Fujii N, Uchiyama T, Hattori T. Marked increase in anti-HIV activity, as well as inhibitory activity against HIV entry mediated by CXCR4, linked to enhancement of the binding ability of tachyplesin analogs to CXCR4. AIDS Res Hum Retroviruses 1999; 15:419-27. [PMID: 10195751 DOI: 10.1089/088922299311169] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
T22 ([Tyr5,12, Lys7]-polyphemusin II) is a strong anti-HIV compound. Six analogs of T22 and two natural forms were synthesized. Of them, all downsized peptides (14 residues; TW70, T131, T134, and T140) showed a higher selectivity index than did other, 17- or 18-residue peptides. In particular, T134 and T140 showed both lower cytotoxicity and higher antiviral activity than did T22 against HIV infection of MT-4 cells, an HTLV-I-bearing T cell line. To clarify the inhibitory mode of T22 and its analogs, we used a single-round replication assay (luciferase assay), in which different envelope-bearing pseudotypes were used to infect CXCR4- or CCR5-bearing U87 cells via CD4. All of the analogs inhibited T cell line-tropic strain HXB-2 (X4) and dual-tropic strain 89.6 (R5X4) HIV infections mediated by CXCR4, but had no effect on macrophage-tropic strain ADA (R5) or 89.6 HIV infections mediated by CCR5. The inhibition by T134 (IC50 of 2.70 nM) and T140 (IC50 of 0.432 nM) was also stronger than that by T22 (IC50 of 5.05 nM). The binding of anti-CXCR4 monoclonal antibody 12G5 to lymphoma-derived T cell line Sup-T1 was more efficiently blocked by T134 and T140 than by T22. Taken together, T22 and its analogs T134 and T140 exerted their inhibition by specific binding to CXCR4. The marked increase in the anti-HIV activity of T134 and T140 was ascribed to an enhancement in their ability to bind to CXCR4.
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Affiliation(s)
- Y Xu
- Laboratory of Virus Immunology, Research Center for Acquired Immunodeficiency Syndrome, Institute for Virus Research, Kyoto University, Japan
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Tamamura H, Xu Y, Hattori T, Zhang X, Arakaki R, Kanbara K, Omagari A, Otaka A, Ibuka T, Yamamoto N, Nakashima H, Fujii N. A low-molecular-weight inhibitor against the chemokine receptor CXCR4: a strong anti-HIV peptide T140. Biochem Biophys Res Commun 1998; 253:877-82. [PMID: 9918823 DOI: 10.1006/bbrc.1998.9871] [Citation(s) in RCA: 245] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
T22 ([Tyr5,12, Lys7]-polyphemusin II) is an 18-residue peptide amide, which has strong anti-HIV activity. T22 inhibits the T cell line-tropic (T-tropic) HIV-1 infection through its specific binding to a chemokine receptor CXCR4, which serves as a coreceptor for the entry of T-tropic HIV-1 strains. Herein, we report our finding of novel 14-residue CXCR4 inhibitors, T134 and T140, on the basis of the T22 structure. In the assays we examined, T140 showed the highest inhibitory activity against HIV-1 entry and the strongest inhibitory effect on the binding of an anti-CXCR4 monoclonal antibody (12G5) to CXCR4 among all the CXCR4 inhibitors that have been reported up to now.
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Affiliation(s)
- H Tamamura
- Graduate School of Pharmaceutical Sciences, Kyoto University, Japan.
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