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Zhang Y, Du X, Wang H, He Z, Liu H. Sacubitril-valsartan cocrystal revisited: role of polymer excipients in the formulation. Expert Opin Drug Deliv 2020; 18:515-526. [PMID: 33280447 DOI: 10.1080/17425247.2021.1860940] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Objectives: This study investigated the impact of polymer excipients on a typical cocrystal for sacubitril (SAC) and valsartan (VAL), aiming to guide optional formulation design and maximize oral bioavailability.Methods: Poly vinyl pyrrolidone (PVP) and hydroxypropyl cellulose (HPC) and hydroxypropyl methylcellulose (HPMC) were selected. The dissolution/permeation system was used to predict both the kinetics of drug supersaturation and the simple permeation. The intermolecular interaction was analyzed by 1H NMR spectroscopy and molecular dynamics simulation. Pharmacokinetic study was performed to assess the impact of polymer excipients in vivo.Results: Our study found that unappreciated excipients in the formulation, especially some polymers, might compete with the intermolecular hydrogen bonding among the cocrystals components and provide unexpected affinity, and thus leverage the therapeutic benefits. HPMC as a coating excipient used in the Entresto® tablet hampered the supersaturation of API, which led to the poor oral absorption of cocrystals. Conversely, PVP appeared to promote and maintain drug supersaturation, resulting in improved bioavailability of API.Conclusion: In conclusion, understanding the interplay between the cocrystal components and polymers is the key to optimizing the excipients to maximize the performance of cocrystal based oral drug formulation.
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Affiliation(s)
- Yingxi Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaoxiao Du
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Hanxun Wang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Hongzhuo Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
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Paranthaman S, Goravinahalli Shivananjegowda M, Mahadev M, Moin A, Hagalavadi Nanjappa S, Nanjaiyah ND, Chidambaram SB, Gowda DV. Nanodelivery Systems Targeting Epidermal Growth Factor Receptors for Glioma Management. Pharmaceutics 2020; 12:pharmaceutics12121198. [PMID: 33321953 PMCID: PMC7763629 DOI: 10.3390/pharmaceutics12121198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/17/2020] [Accepted: 10/18/2020] [Indexed: 02/06/2023] Open
Abstract
A paradigm shift in treating the most aggressive and malignant form of glioma is continuously evolving; however, these strategies do not provide a better life and survival index. Currently, neurosurgical debulking, radiotherapy, and chemotherapy are the treatment options available for glioma, but these are non-specific in action. Patients invariably develop resistance to these therapies, leading to recurrence and death. Receptor Tyrosine Kinases (RTKs) are among the most common cell surface proteins in glioma and play a significant role in malignant progression; thus, these are currently being explored as therapeutic targets. RTKs belong to the family of cell surface receptors that are activated by ligands which in turn activates two major downstream signaling pathways via Rapidly Accelerating Sarcoma/mitogen activated protein kinase/extracellular-signal-regulated kinase (Ras/MAPK/ERK) and phosphatidylinositol 3-kinase/a serine/threonine protein kinase/mammalian target of rapamycin (PI3K/AKT/mTOR). These pathways are critically involved in regulating cell proliferation, invasion, metabolism, autophagy, and apoptosis. Dysregulation in these pathways results in uncontrolled glioma cell proliferation, invasion, angiogenesis, and cancer progression. Thus, RTK pathways are considered a potential target in glioma management. This review summarizes the possible risk factors involved in the growth of glioblastoma (GBM). The role of RTKs inhibitors (TKIs) and the intracellular signaling pathways involved, small molecules under clinical trials, and the updates were discussed. We have also compiled information on the outcomes from the various endothelial growth factor receptor (EGFR)-TKIs-based nanoformulations from the preclinical and clinical points of view. Aided by an extensive literature search, we propose the challenges and potential opportunities for future research on EGFR-TKIs-based nanodelivery systems.
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Affiliation(s)
- Sathishbabu Paranthaman
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (S.P.); (M.G.S.); (M.M.)
| | | | - Manohar Mahadev
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (S.P.); (M.G.S.); (M.M.)
| | - Afrasim Moin
- Department of Pharmaceutics, Hail University, Hail PO BOX 2440, Saudi Arabia;
| | | | | | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India;
| | - Devegowda Vishakante Gowda
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (S.P.); (M.G.S.); (M.M.)
- Correspondence: ; Tel.: +91-9663162455
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Fatemi SM, Fatemi SJ, Abbasi Z. PAMAM dendrimer-based macromolecules and their potential applications: recent advances in theoretical studies. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-019-03076-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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4
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Duarte Y, Márquez-Miranda V, Miossec MJ, González-Nilo F. Integration of target discovery, drug discovery and drug delivery: A review on computational strategies. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 11:e1554. [PMID: 30932351 DOI: 10.1002/wnan.1554] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 12/14/2018] [Accepted: 01/23/2019] [Indexed: 12/22/2022]
Abstract
Most of the computational tools involved in drug discovery developed during the 1980s were largely based on computational chemistry, quantitative structure-activity relationship (QSAR) and cheminformatics. Subsequently, the advent of genomics in the 2000s gave rise to a huge number of databases and computational tools developed to analyze large quantities of data, through bioinformatics, to obtain valuable information about the genomic regulation of different organisms. Target identification and validation is a long process during which evidence for and against a target is accumulated in the pursuit of developing new drugs. Finally, the drug delivery system appears as a novel approach to improve drug targeting and releasing into the cells, leading to new opportunities to improve drug efficiency and avoid potential secondary effects. In each area: target discovery, drug discovery and drug delivery, different computational strategies are being developed to accelerate the process of selection and discovery of new tools to be applied to different scientific fields. Research on these three topics is growing rapidly, but still requires a global view of this landscape to detect the most challenging bottleneck and how computational tools could be integrated in each topic. This review describes the current state of the art in computational strategies for target discovery, drug discovery and drug delivery and how these fields could be integrated. Finally, we will discuss about the current needs in these fields and how the continuous development of databases and computational tools will impact on the improvement of those areas. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Nanotechnology Approaches to Biology > Nanoscale Systems in Biology.
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Affiliation(s)
- Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Matthieu J Miossec
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Fernando González-Nilo
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile.,Centro Interdisciplinario de Neurociencias de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
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5
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Guerrero-Beltran C, Rodriguez-Izquierdo I, Serramia MJ, Araya-Durán I, Márquez-Miranda V, Gomez R, de la Mata FJ, Leal M, González-Nilo F, Muñoz-Fernández MA. Anionic Carbosilane Dendrimers Destabilize the GP120-CD4 Complex Blocking HIV-1 Entry and Cell to Cell Fusion. Bioconjug Chem 2018; 29:1584-1594. [PMID: 29570280 DOI: 10.1021/acs.bioconjchem.8b00106] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cell-to-cell transmission is the most effective pathway for the spread of human immunodeficiency virus (HIV-1). Infected cells expose virus-encoded fusion proteins on their surface as a consequence of HIV-1 replicative cycle that interacts with noninfected cells through CD4 receptor and CXCR4 coreceptor leading to the formation of giant multinucleated cells known as syncytia. Our group previously described the potent activity of dendrimers against CCR5-tropic viruses. Nevertheless, the study of G1-S4, G2-S16, and G3-S16 dendrimers in the context of X4-HIV-1 tropic cell-cell fusion referred to syncytium formation remains still unknown. These dendrimers showed a suitable biocompatibility in all cell lines studied and our results demonstrated that anionic carbosilane dendrimers G1-S4, G2-S16, and G3-S16 significantly inhibit the X4-HIV-1 infection, as well as syncytia formation, in a dose dependent manner. We also demonstrated that G2-S16 and G1-S4 significantly reduced syncytia formation in HIV-1 Env-mediated cell-to-cell fusion model. Molecular modeling and in silico models showed that G2-S16 dendrimer interfered with gp120-CD4 complex and demonstrated its potential use for a treatment.
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Affiliation(s)
- Carlos Guerrero-Beltran
- Laboratorio InmunoBiología Molecular , Hospital General Universitario Gregorio Marañón and Instituto de Investigación Sanitaria Gregorio Marañón (IISGM) , 28007 Madrid , Spain.,Spanish HIV HGM BioBank , 28009 Madrid , Spain.,Plataforma de Laboratorio , Hospital General Universitario Gregorio Marañón , 28007 Madrid , Spain
| | - Ignacio Rodriguez-Izquierdo
- Laboratorio InmunoBiología Molecular , Hospital General Universitario Gregorio Marañón and Instituto de Investigación Sanitaria Gregorio Marañón (IISGM) , 28007 Madrid , Spain.,Spanish HIV HGM BioBank , 28009 Madrid , Spain
| | - Ma Jesus Serramia
- Laboratorio InmunoBiología Molecular , Hospital General Universitario Gregorio Marañón and Instituto de Investigación Sanitaria Gregorio Marañón (IISGM) , 28007 Madrid , Spain.,Spanish HIV HGM BioBank , 28009 Madrid , Spain
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas , Universidad Andres Bello , Av. República 239 , Santiago , Chile , 8370146.,Fundación Fraunhofer Chile Research , Las Condes , Chile , 7550296.,Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias , Universidad de Valparaíso , Valparaíso , Chile , 2360102
| | - Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas , Universidad Andres Bello , Av. República 239 , Santiago , Chile , 8370146.,Fundación Fraunhofer Chile Research , Las Condes , Chile , 7550296.,Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias , Universidad de Valparaíso , Valparaíso , Chile , 2360102
| | - Rafael Gomez
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) , Instituto de Salud Carlos III , Av. de Monforte de Lemos, 5 , 28029 Madrid , Spain
| | - Francisco Javier de la Mata
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) , Instituto de Salud Carlos III , Av. de Monforte de Lemos, 5 , 28029 Madrid , Spain
| | - Manuel Leal
- Instituto de Biomedicina de Sevilla (IBiS) . Hospital Universitario Virgen del Rocio , Av. Manuel Siurot, s/n , 41013 Sevilla , Spain.,Servicio de Medicina Interna . Hospital Viamed Santa Ángela , Av. de Jerez, 59 , 41014 Sevilla , Spain
| | - Fernando González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas , Universidad Andres Bello , Av. República 239 , Santiago , Chile , 8370146.,Fundación Fraunhofer Chile Research , Las Condes , Chile , 7550296.,Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias , Universidad de Valparaíso , Valparaíso , Chile , 2360102
| | - M Angeles Muñoz-Fernández
- Laboratorio InmunoBiología Molecular , Hospital General Universitario Gregorio Marañón and Instituto de Investigación Sanitaria Gregorio Marañón (IISGM) , 28007 Madrid , Spain.,Spanish HIV HGM BioBank , 28009 Madrid , Spain.,Plataforma de Laboratorio , Hospital General Universitario Gregorio Marañón , 28007 Madrid , Spain.,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) , Instituto de Salud Carlos III , Av. de Monforte de Lemos, 5 , 28029 Madrid , Spain
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Amirmahani N, Mahmoodi NO, Mohammadi Galangash M, Ghavidast A. Advances in nanomicelles for sustained drug delivery. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.06.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Manzanares D, Araya-Durán I, Gallego-Yerga L, Játiva P, Márquez-Miranda V, Canan J, Jiménez Blanco JL, Mellet CO, González-Nilo FD, García Fernández JM, Ceña V. Molecular determinants for cyclo-oligosaccharide-based nanoparticle-mediated effective siRNA transfection. Nanomedicine (Lond) 2017. [PMID: 28621615 DOI: 10.2217/nnm-2017-0123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
AIM To study the structural requirements that a cyclooligosaccharide-based nanoparticle must fulfill to be an efficient siRNA transfection vector. MATERIALS & METHODS siRNA protection from degradation by RNAses, transfection efficiency and the thermodynamic parameters of the nanoparticle/siRNA interactions were studied on pairs of amphiphilic molecules using biochemical techniques and molecular dynamics. RESULTS The lower the siRNA solvent accessible surface area in the presence of the nanoparticle, higher the protection from RNAse-mediated degradation in the corresponding nanocomplex; a moderate nanoparticle/siRNA binding energy value further facilitates reversible complexation and binding to the target cellular mRNA. CONCLUSION The use, in advance, of these parameters will provide a useful indication of the potential of a molecular nanoparticle as siRNA transfecting vector.
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Affiliation(s)
- Darío Manzanares
- Unidad Asociada Neurodeath, Universidad de Castilla-La Mancha, Albacete, Spain.,CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Ingrid Araya-Durán
- Universidad Andres Bello, Facultad de Ciencias Biológicas, Center for Bioinformatics & Integrative Biology (CBIB), Av. República 239, Santiago, 8370146, Chile
| | - Laura Gallego-Yerga
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, C/Profesor García González 1, 41012-Sevilla Sevilla, Spain
| | - Pablo Játiva
- Unidad Asociada Neurodeath, Universidad de Castilla-La Mancha, Albacete, Spain.,CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Valeria Márquez-Miranda
- Universidad Andres Bello, Facultad de Ciencias Biológicas, Center for Bioinformatics & Integrative Biology (CBIB), Av. República 239, Santiago, 8370146, Chile
| | - Jonathan Canan
- Universidad Andres Bello, Facultad de Ciencias Biológicas, Center for Bioinformatics & Integrative Biology (CBIB), Av. República 239, Santiago, 8370146, Chile
| | - José Luis Jiménez Blanco
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, C/Profesor García González 1, 41012-Sevilla Sevilla, Spain
| | - Carmen Ortiz Mellet
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, C/Profesor García González 1, 41012-Sevilla Sevilla, Spain
| | - Fernando Danilo González-Nilo
- Universidad Andres Bello, Facultad de Ciencias Biológicas, Center for Bioinformatics & Integrative Biology (CBIB), Av. República 239, Santiago, 8370146, Chile.,Fundación Fraunhofer Chile Research, Las Condes, 7550296, Chile.,Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, 2360102, Chile
| | - José Manuel García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Vda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - Valentín Ceña
- Unidad Asociada Neurodeath, Universidad de Castilla-La Mancha, Albacete, Spain.,CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
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8
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Márquez-Miranda V, Abrigo J, Rivera JC, Araya-Durán I, Aravena J, Simon F, Pacheco N, González-Nilo FD, Cabello-Verrugio C. The complex of PAMAM-OH dendrimer with Angiotensin (1-7) prevented the disuse-induced skeletal muscle atrophy in mice. Int J Nanomedicine 2017; 12:1985-1999. [PMID: 28331320 PMCID: PMC5357082 DOI: 10.2147/ijn.s125521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Angiotensin (1–7) (Ang-(1–7)) is a bioactive heptapeptide with a short half-life and has beneficial effects in several tissues – among them, skeletal muscle – by preventing muscle atrophy. Dendrimers are promising vehicles for the protection and transport of numerous bioactive molecules. This work explored the use of a neutral, non-cytotoxic hydroxyl-terminated poly(amidoamine) (PAMAM-OH) dendrimer as an Ang-(1–7) carrier. Bioinformatics analysis showed that the Ang-(1–7)-binding capacity of the dendrimer presented a 2:1 molar ratio. Molecular dynamics simulation analysis revealed the capacity of neutral PAMAM-OH to protect Ang-(1–7) and form stable complexes. The peptide coverage ability of the dendrimer was between ~50% and 65%. Furthermore, an electrophoretic mobility shift assay demonstrated that neutral PAMAM-OH effectively bonded peptides. Experimental results showed that the Ang-(1–7)/PAMAM-OH complex, but not Ang-(1–7) alone, had an anti-atrophic effect when administered intraperitoneally, as evaluated by muscle strength, fiber diameter, myofibrillar protein levels, and atrogin-1 and MuRF-1 expressions. The results of the Ang-(1–7)/PAMAM-OH complex being intraperitoneally injected were similar to the results obtained when Ang-(1–7) was systemically administered through mini-osmotic pumps. Together, the results suggest that Ang-(1–7) can be protected for PAMAM-OH when this complex is intraperitoneally injected. Therefore, the Ang-(1–7)/PAMAM-OH complex is an efficient delivery method for Ang-(1–7), since it improves the anti-atrophic activity of this peptide in skeletal muscle.
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Affiliation(s)
- Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes
| | - Johanna Abrigo
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Juan Carlos Rivera
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Javier Aravena
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Felipe Simon
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Nicolás Pacheco
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Fernando Danilo González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes; Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio Cabello-Verrugio
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
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Structural analysis of binding functionality of folic acid-PEG dendrimers against folate receptor. J Mol Graph Model 2017; 72:201-208. [PMID: 28110184 DOI: 10.1016/j.jmgm.2017.01.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/23/2016] [Accepted: 01/04/2017] [Indexed: 12/27/2022]
Abstract
Dendrimers functionalized with folic acid (FA) are drug delivery systems that can selectively target cancer cells with folate receptors (FR-α) overexpression. Incorporation of polyethylene glycol (PEG) can enhance dendrimers solubility and pharmacokinetics, but ligand-receptor binding must not be affected. In this work we characterized, at atomic level, the binding functionality of conventional site-specific dendrimers conjugated with FA with PEG 750 or PEG 3350 as a linker. After Molecular Dynamics simulation, we observed that both PEG's did not interfere over ligand-receptor binding functionality. Although binding kinetics could be notably affected, the folate fragment from both dendrimers remained exposed to the solvent before approaching selectively to FR-α. PEG 3350 provided better solubility and protection from enzymatic degradation to the dendrimer than PEG 750. Also, FA-PEG3350 dendrimer showed a slightly better interaction with FR-α than FA-PEG750 dendrimer. Therefore, theoretical evidence supports that both dendrimers are suitable as drug delivery systems for cancer therapies.
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10
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Márquez-Miranda V, Peñaloza JP, Araya-Durán I, Reyes R, Vidaurre S, Romero V, Fuentes J, Céric F, Velásquez L, González-Nilo FD, Otero C. Effect of Terminal Groups of Dendrimers in the Complexation with Antisense Oligonucleotides and Cell Uptake. NANOSCALE RESEARCH LETTERS 2016; 11:66. [PMID: 26847692 PMCID: PMC4742457 DOI: 10.1186/s11671-016-1260-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 01/09/2016] [Indexed: 06/05/2023]
Abstract
Poly(amidoamine) dendrimers are the most recognized class of dendrimer. Amino-terminated (PAMAM-NH2) and hydroxyl-terminated (PAMAM-OH) dendrimers of generation 4 are widely used, since they are commercially available. Both have different properties, mainly based on their different overall charges at physiological pH. Currently, an important function of dendrimers as carriers of short single-stranded DNA has been applied. These molecules, known as antisense oligonucleotides (asODNs), are able to inhibit the expression of a target mRNA. Whereas PAMAM-NH2 dendrimers have shown to be able to transfect plasmid DNA, PAMAM-OH dendrimers have not shown the same successful results. However, little is known about their interaction with shorter and more flexible molecules such as asODNs. Due to several initiatives, the use of these neutral dendrimers as a scaffold to introduce other functional groups has been proposed. Because of its low cytotoxicity, it is relevant to understand the molecular phenomena involving these types of dendrimers. In this work, we studied the behavior of an antisense oligonucleotide in presence of both types of dendrimers using molecular dynamics simulations, in order to elucidate if they are able to form stable complexes. In this manner, we demonstrated at atomic level that PAMAM-NH2, unlike PAMAM-OH, could form a well-compacted complex with asODN, albeit PAMAM-OH can also establish stable interactions with the oligonucleotide. The biological activity of asODN in complex with PAMAM-NH2 dendrimer was also shown. Finally, we revealed that in contact with PAMAM-OH, asODN remains outside the cells as TIRF microscopy results showed, due to its poor interaction with this dendrimer and cell membranes.
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Affiliation(s)
- Valeria Márquez-Miranda
- Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Republica 239, Santiago, Chile
- Fundación Fraunhofer Chile Research, M. Sánchez Fontecilla 310 piso 14, Las Condes, Chile
| | - Juan Pablo Peñaloza
- Facultad de Medicina, Center for Integrative Medicine and Innovative Science, Universidad Andres Bello, Santiago, Chile
| | - Ingrid Araya-Durán
- Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Republica 239, Santiago, Chile
- Fundación Fraunhofer Chile Research, M. Sánchez Fontecilla 310 piso 14, Las Condes, Chile
| | - Rodrigo Reyes
- Facultad de Medicina, Center for Integrative Medicine and Innovative Science, Universidad Andres Bello, Santiago, Chile
| | - Soledad Vidaurre
- Departamento Ciencias Químicas y Biológicas, Laboratorio de Bionanotecnología, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Valentina Romero
- Departamento Ciencias Químicas y Biológicas, Laboratorio de Bionanotecnología, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Juan Fuentes
- Facultad de Biología, Laboratorio de Microbiología, Universidad Andres Bello, Republica 217, Santiago, Chile
| | - Francisco Céric
- Laboratorio de Neurociencias Cognitivas, Facultad de Psicología, Universidad del Desarrollo, Santiago, Chile
| | - Luis Velásquez
- Fundación Fraunhofer Chile Research, M. Sánchez Fontecilla 310 piso 14, Las Condes, Chile
- Facultad de Medicina, Center for Integrative Medicine and Innovative Science, Universidad Andres Bello, Santiago, Chile
| | - Fernando D González-Nilo
- Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Republica 239, Santiago, Chile.
- Fundación Fraunhofer Chile Research, M. Sánchez Fontecilla 310 piso 14, Las Condes, Chile.
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile.
| | - Carolina Otero
- Fundación Fraunhofer Chile Research, M. Sánchez Fontecilla 310 piso 14, Las Condes, Chile.
- Facultad de Medicina, Center for Integrative Medicine and Innovative Science, Universidad Andres Bello, Santiago, Chile.
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Sepúlveda-Crespo D, Vacas-Córdoba E, Márquez-Miranda V, Araya-Durán I, Gómez R, Mata FJDL, González-Nilo FD, Muñoz-Fernández MÁ. Effect of Several HIV Antigens Simultaneously Loaded with G2-NN16 Carbosilane Dendrimer in the Cell Uptake and Functionality of Human Dendritic Cells. Bioconjug Chem 2016; 27:2844-2849. [DOI: 10.1021/acs.bioconjchem.6b00623] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Daniel Sepúlveda-Crespo
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
| | - Enrique Vacas-Córdoba
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
| | - Valeria Márquez-Miranda
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
| | - Ingrid Araya-Durán
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
| | - Rafael Gómez
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
- Departamento
Química Orgánica y Química Inorgánica, Universidad de Alcalá Henares, Campus Universitario, Alcalá de Henares 28805, Spain
| | - Francisco Javier de la Mata
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
- Departamento
Química Orgánica y Química Inorgánica, Universidad de Alcalá Henares, Campus Universitario, Alcalá de Henares 28805, Spain
| | - Fernando Danilo González-Nilo
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
- Centro
Interdisciplinario de Neurociencia de Valparaíso, Facultad
de Ciencias, Universidad de Valparaíso, Valparaíso 8370071, Chile
| | - M Ángeles Muñoz-Fernández
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
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Márquez-Miranda V, Araya-Durán I, Camarada MB, Comer J, Valencia-Gallegos JA, González-Nilo FD. Self-Assembly of Amphiphilic Dendrimers: The Role of Generation and Alkyl Chain Length in siRNA Interaction. Sci Rep 2016; 6:29436. [PMID: 27377641 PMCID: PMC4932498 DOI: 10.1038/srep29436] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 06/17/2016] [Indexed: 01/06/2023] Open
Abstract
An ideal nucleic-acid transfection system should combine the physical and chemical characteristics of cationic lipids and linear polymers to decrease cytotoxicity and uptake limitations. Previous research described new types of carriers termed amphiphilic dendrimers (ADs), which are based on polyamidoamine dendrimers (PAMAM). These ADs display the cell membrane affinity advantage of lipids and preserve the high affinity for DNA possessed by cationic dendrimers. These lipid/dendrimer hybrids consist of a low-generation, hydrophilic dendron (G2, G1, or G0) bonded to a hydrophobic tail. The G2-18C AD was reported to be an efficient siRNA vector with significant gene silencing. However, shorter tail ADs (G2-15C and G2-13C) and lower generation (G0 and G1) dendrimers failed as transfection carriers. To date, the self-assembly phenomenon of this class of amphiphilic dendrimers has not been molecularly explored using molecular simulation methods. To gain insight into these systems, the present study used coarse-grained molecular dynamics simulations to describe how ADs are able to self-assemble into an aggregate, and, specifically, how tail length and generation play a key role in this event. Finally, explanations are given for the better efficiency of G2/18-C as gene carrier in terms of binding of siRNA. This knowledge could be relevant for the design of novel, safer ADs with well-optimized affinity for siRNA.
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Affiliation(s)
- Valeria Márquez-Miranda
- Universidad Andres Bello, Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Av. República 239, Santiago, Chile
- Fundación Fraunhofer Chile Research, Las Condes, Chile
| | - Ingrid Araya-Durán
- Universidad Andres Bello, Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Av. República 239, Santiago, Chile
- Fundación Fraunhofer Chile Research, Las Condes, Chile
| | - María Belén Camarada
- Universidad Bernardo O Higgins, Laboratorio de Bionanotecnología, General Gana 1702, Santiago, Chile
| | - Jeffrey Comer
- Kansas State University, Nanotechnology Innovation Center of Kansas State, Institute of Computational Comparative Medicine, Anatomy and Physiology, Kansas, USA
| | - Jesús A. Valencia-Gallegos
- Centro de Biotecnología FEMSA, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Col. Tecnológico, Monterrey, N.L, México
| | - Fernando Danilo González-Nilo
- Universidad Andres Bello, Facultad de Biología, Center for Bioinformatics and Integrative Biology (CBIB), Av. República 239, Santiago, Chile
- Fundación Fraunhofer Chile Research, Las Condes, Chile
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
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