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Parra-Guillen ZP, Sancho-Araiz A, Mayawala K, Zalba S, Garrido MJ, de Alwis D, Troconiz IF, Freshwater T. Assessment of Clinical Response to V937 Oncolytic Virus After Intravenous or Intratumoral Administration Using Physiologically-Based Modeling. Clin Pharmacol Ther 2023; 114:623-632. [PMID: 37170933 DOI: 10.1002/cpt.2937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
Oncolytic viruses (OVs) represent a potential therapeutic strategy in cancer treatment. However, there is currently a lack of comprehensive quantitative models characterizing clinical OV kinetics and distribution to the tumor. In this work, we present a mechanistic modeling framework for V937 OV, after intratumoral (i.t.) or intravascular (i.v.) administration in patients with cancer. A minimal physiologically-based pharmacokinetic model was built to characterize biodistribution of OVs in humans. Viral dynamics was incorporated at the i.t. cellular level and linked to tumor response, enabling the characterization of a direct OV killing triggered by the death of infected tumor cells and an indirect killing induced by the immune response. The model provided an adequate description of changes in V937 mRNA levels and tumor size obtained from phase I/II clinical trials after V937 administration. The model showed prominent role of viral clearance from systemic circulation and infectivity in addition to known tumor aggressiveness on clinical response. After i.v. administration, i.t. exposure of V937 was predicted to be several orders of magnitude lower compared with i.t. administration. These differences could be overcome if there is high virus infectivity and/or replication. Unfortunately, the latter process could not be identified at the current clinical setting. This work provides insights on selecting optimal OV considering replication rate and infectivity.
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Affiliation(s)
- Zinnia P Parra-Guillen
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Aymara Sancho-Araiz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Kapil Mayawala
- Quantitative Pharmacology and Pharmacometrics Immune/Oncology (QP2-I/O), Merck & Co., Inc., Rahway, New Jersey, USA
| | - Sara Zalba
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Maria J Garrido
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Dinesh de Alwis
- Quantitative Pharmacology and Pharmacometrics Immune/Oncology (QP2-I/O), Merck & Co., Inc., Rahway, New Jersey, USA
| | - Iñaki F Troconiz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Tomoko Freshwater
- Quantitative Pharmacology and Pharmacometrics Immune/Oncology (QP2-I/O), Merck & Co., Inc., Rahway, New Jersey, USA
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Zalba S, Ten Hagen TLM, Burgui C, Garrido MJ. Stealth nanoparticles in oncology: Facing the PEG dilemma. J Control Release 2022; 351:22-36. [PMID: 36087801 DOI: 10.1016/j.jconrel.2022.09.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022]
Abstract
Nanoparticles (Nps) have revolutionized the landscape of many treatments, by modifying not only pharmacokinetic properties of the encapsulated agent, but also providing a significant protection of the drug from non-desired interactions, and reducing side-effects of the enclosed therapeutic, enabling co-encapsulation of possibly synergistic compounds or activities, allowing a controlled release of content and improving the therapeutic effect. Nevertheless, in systemic circulation, Nps suffer a rapid removal by opsonisation and the action of Mononuclear phagocyte system (MPS). To overcome this problem, different polymers, in particular Polyethyleneglycol (PEG), have been used to cover the surface of these nanocarriers forming a hydrophilic layer that allows the delay of the removal. These advantages contrast with some drawbacks such as the difficulty to interact with cell membranes and the development of immunological reactions, conforming the known, "PEG dilemma". To address and minimize this phenomenon, different strategies have been applied. Therefore, this review aims to summarize the state of the art of Pegylation strategies, comment in depth on the principal characteristics of PEG and describe the main alternatives, which are the use of cleavable PEG, addition of different polymers or even use other derivatives of cell membranes to camouflage Nps.
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Affiliation(s)
- Sara Zalba
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy & Nutrition, University of Navarra; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Timo L M Ten Hagen
- Laboratory of Experimental Oncology, and Nanomedicine Innovation Center Erasmus (NICE), Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Carmen Burgui
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy & Nutrition, University of Navarra
| | - María J Garrido
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy & Nutrition, University of Navarra; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
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Sancho-Araiz A, Zalba S, Garrido MJ, Berraondo P, Topp B, de Alwis D, Parra-Guillen ZP, Mangas-Sanjuan V, Trocóniz IF. Semi-Mechanistic Model for the Antitumor Response of a Combination Cocktail of Immuno-Modulators in Non-Inflamed (Cold) Tumors. Cancers (Basel) 2021; 13:cancers13205049. [PMID: 34680196 PMCID: PMC8534053 DOI: 10.3390/cancers13205049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/05/2021] [Indexed: 11/30/2022] Open
Abstract
Simple Summary The clinical efficacy of immunotherapies when treating cold tumors is still low, and different treatment combinations are needed when dealing with this challenging scenario. In this work, a middle-out strategy was followed to develop a model describing the antitumor efficacy of different immune-modulator combinations, including an antigen, a toll-like receptor-3 agonist, and an immune checkpoint inhibitor in mice treated with non-inflamed tumor cells. Our results support that clinical response requires antigen-presenting cell activation and also relies on the amount of CD8 T cells and tumor resistance mechanisms present. This mathematical model is a very useful platform to evaluate different immuno-oncology combinations in both preclinical and clinical settings. Abstract Immune checkpoint inhibitors, administered as single agents, have demonstrated clinical efficacy. However, when treating cold tumors, different combination strategies are needed. This work aims to develop a semi-mechanistic model describing the antitumor efficacy of immunotherapy combinations in cold tumors. Tumor size of mice treated with TC-1/A9 non-inflamed tumors and the drug effects of an antigen, a toll-like receptor-3 agonist (PIC), and an immune checkpoint inhibitor (anti-programmed cell death 1 antibody) were modeled using Monolix and following a middle-out strategy. Tumor growth was best characterized by an exponential model with an estimated initial tumor size of 19.5 mm3 and a doubling time of 3.6 days. In the treatment groups, contrary to the lack of response observed in monotherapy, combinations including the antigen were able to induce an antitumor response. The final model successfully captured the 23% increase in the probability of cure from bi-therapy to triple-therapy. Moreover, our work supports that CD8+ T lymphocytes and resistance mechanisms are strongly related to the clinical outcome. The activation of antigen-presenting cells might be needed to achieve an antitumor response in reduced immunogenic tumors when combined with other immunotherapies. These models can be used as a platform to evaluate different immuno-oncology combinations in preclinical and clinical scenarios.
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Affiliation(s)
- Aymara Sancho-Araiz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain; (A.S.-A.); (S.Z.); (M.J.G.); (Z.P.P.-G.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
| | - Sara Zalba
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain; (A.S.-A.); (S.Z.); (M.J.G.); (Z.P.P.-G.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
| | - María J. Garrido
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain; (A.S.-A.); (S.Z.); (M.J.G.); (Z.P.P.-G.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
| | - Pedro Berraondo
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
- Program of Immunology and Immunotherapy, CIMA Universidad de Navarra, 31008 Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Brian Topp
- Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, NJ 07033, USA; (B.T.); (D.d.A.)
| | - Dinesh de Alwis
- Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, NJ 07033, USA; (B.T.); (D.d.A.)
| | - Zinnia P. Parra-Guillen
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain; (A.S.-A.); (S.Z.); (M.J.G.); (Z.P.P.-G.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
| | - Víctor Mangas-Sanjuan
- Department of Pharmacy Technology and Parasitology, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain;
- Interuniversity Institute of Recognition Research Molecular and Technological Development, Polytechnic University of Valencia-University of Valencia, 46100 Valencia, Spain
| | - Iñaki F. Trocóniz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain; (A.S.-A.); (S.Z.); (M.J.G.); (Z.P.P.-G.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain;
- Correspondence:
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Parra-Guillen ZP, Freshwater T, Cao Y, Mayawala K, Zalba S, Garrido MJ, de Alwis D, Troconiz IF. Mechanistic Modeling of a Novel Oncolytic Virus, V937, to Describe Viral Kinetic and Dynamic Processes Following Intratumoral and Intravenous Administration. Front Pharmacol 2021; 12:705443. [PMID: 34366859 PMCID: PMC8343024 DOI: 10.3389/fphar.2021.705443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/07/2021] [Indexed: 12/28/2022] Open
Abstract
V937 is an investigational novel oncolytic non-genetically modified Kuykendall strain of Coxsackievirus A21 which is in clinical development for the treatment of advanced solid tumor malignancies. V937 infects and lyses tumor cells expressing the intercellular adhesion molecule I (ICAM-I) receptor. We integrated in vitro and in vivo data from six different preclinical studies to build a mechanistic model that allowed a quantitative analysis of the biological processes of V937 viral kinetics and dynamics, viral distribution to tumor, and anti-tumor response elicited by V937 in human xenograft models in immunodeficient mice following intratumoral and intravenous administration. Estimates of viral infection and replication which were calculated from in vitro experiments were successfully used to describe the tumor response in vivo under various experimental conditions. Despite the predicted high clearance rate of V937 in systemic circulation (t1/2 = 4.3 min), high viral replication was observed in immunodeficient mice which resulted in tumor shrinkage with both intratumoral and intravenous administration. The described framework represents a step towards the quantitative characterization of viral distribution, replication, and oncolytic effect of a novel oncolytic virus following intratumoral and intravenous administrations in the absence of an immune response. This model may further be expanded to integrate the role of the immune system on viral and tumor dynamics to support the clinical development of oncolytic viruses.
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Affiliation(s)
- Zinnia P Parra-Guillen
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | | | - Youfang Cao
- Merck & Co., Inc., Kenilworth, NJ, United States
| | | | - Sara Zalba
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Maria J Garrido
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | | | - Iñaki F Troconiz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
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5
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Merino M, Lozano T, Casares N, Lana H, Troconiz IF, Ten Hagen TLM, Kochan G, Berraondo P, Zalba S, Garrido MJ. Dual activity of PD-L1 targeted Doxorubicin immunoliposomes promoted an enhanced efficacy of the antitumor immune response in melanoma murine model. J Nanobiotechnology 2021; 19:102. [PMID: 33849551 PMCID: PMC8042980 DOI: 10.1186/s12951-021-00846-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/27/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The immunomodulation of the antitumor response driven by immunocheckpoint inhibitors (ICIs) such as PD-L1 (Programmed Death Ligand-1) monoclonal antibody (α-PD-L1) have shown relevant clinical outcomes in a subset of patients. This fact has led to the search for rational combinations with other therapeutic agents such as Doxorubicin (Dox), which cytotoxicity involves an immune activation that may enhance ICI response. Therefore, this study aims to evaluate the combination of chemotherapy and ICI by developing Dox Immunoliposomes functionalized with monovalent-variable fragments (Fab') of α-PD-L1. RESULTS Immunoliposomes were assayed in vitro and in vivo in a B16 OVA melanoma murine cell line over-expressing PD-L1. Here, immune system activation in tumor, spleen and lymph nodes, together with the antitumor efficacy were evaluated. Results showed that immunoliposomes bound specifically to PD-L1+ cells, yielding higher cell interaction and Dox internalization, and decreasing up to 30-fold the IC50, compared to conventional liposomes. This mechanism supported a higher in vivo response. Indeed, immunoliposomes promoted full tumor regression in 20% of mice and increased in 1 month the survival rate. This formulation was the only treatment able to induce significant (p < 0.01) increase of activated tumor specific cytotoxic T lymphocytes at the tumor site. CONCLUSION PD-L1 targeted liposomes encapsulating Dox have proved to be a rational combination able to enhance the modulation of the immune system by blocking PD-L1 and selectively internalizing Dox, thus successfully providing a dual activity offered by both, chemo and immune therapeutic strategies.
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Affiliation(s)
- María Merino
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy, University of Navarra, 31008, Pamplona, Navarra, Spain
| | - Teresa Lozano
- Program of Immunology and Immunotherapy, CIMA-Universidad de Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdisNA), Pamplona, Spain
| | - Noelia Casares
- Program of Immunology and Immunotherapy, CIMA-Universidad de Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdisNA), Pamplona, Spain
| | - Hugo Lana
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy, University of Navarra, 31008, Pamplona, Navarra, Spain
| | - Iñaki F Troconiz
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy, University of Navarra, 31008, Pamplona, Navarra, Spain.,Navarra Institute for Health Research (IdisNA), Pamplona, Spain
| | - Timo L M Ten Hagen
- Laboratory of Experimental Oncology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Grazyna Kochan
- Navarra Institute for Health Research (IdisNA), Pamplona, Spain.,Department of Oncology, Navarrabiomed-Biomedical Research Centre, Pamplona, Spain
| | - Pedro Berraondo
- Program of Immunology and Immunotherapy, CIMA-Universidad de Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdisNA), Pamplona, Spain
| | - Sara Zalba
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy, University of Navarra, 31008, Pamplona, Navarra, Spain. .,Navarra Institute for Health Research (IdisNA), Pamplona, Spain.
| | - María J Garrido
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy, University of Navarra, 31008, Pamplona, Navarra, Spain. .,Navarra Institute for Health Research (IdisNA), Pamplona, Spain.
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Zalba S, Seynhaeve ALB, Brouwers JF, Süss R, Verheij M, Ten Hagen TLM. Sensitization of drug resistant sarcoma tumors by membrane modulation via short chain sphingolipid-containing nanoparticles. Nanoscale 2020; 12:16967-16979. [PMID: 32780078 PMCID: PMC7497538 DOI: 10.1039/d0nr02257h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Nanoparticles such as liposomes are able to overcome cancer treatment challenges such as multidrug resistance by increasing the bioavailability of the encapsulated drug, bypassing drug pumps or through targeting resistant cells. Here, we merge enhanced drug delivery by nanotechnology with tumor cell membrane modulation combined in a single formulation. This is achieved through the incorporation of Short chain sphingolipids (SCSs) in the liposomal composition, which permeabilizes cell membranes to amphiphilic drugs such as Doxorubicin (Dxr). To study the mechanism and capability of SCS-containing nanodevices to overcome Dxr resistance, a sensitive uterine sarcoma cell line, MES-SA, and a resistant derived cell line, MES-SA/MX2, were used. The mechanism of resistance was explored by lipidomics and flow cytometry, revealing significant differences in lipid composition and in P glycoprotein (Pgp) expression. In vitro assays show that SCS liposomes were able to reverse cell resistance, and importantly, display a higher net effect on resistant than sensitive cells. SCS lipids modulated the cell membrane of MES-SA/MX2 drug resistant cells, while Pgp expression was not affected. Furthermore, SCS-modified liposomes were evaluated in a sarcoma xenograft model on drug accumulation, pharmacokinetics and efficacy. SCS liposomes improved Dxr levels in tumor nuclei of MES-SA/MX2 tumor cells, which was accompanied by a delay in tumor growth of the resistant model. Here we show that Dxr accumulation in tumor cells by SCS-modified liposomes was especially improved in Dxr resistant cells, rendering Dxr as effective as in sensitive cells. Moreover, this phenomenon translated to improved efficacy when Dxr liposomes where modified with SCSs in the drug resistant tumor model, while no benefit was seen in the sensitive tumors.
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Affiliation(s)
- Sara Zalba
- Laboratory Experimental Oncology, Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands.
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Zalba S, Contreras-Sandoval AM, Martisova E, Debets R, Smerdou C, Garrido MJ. Quantification of Pharmacokinetic Profiles of PD-1/PD-L1 Antibodies by Validated ELISAs. Pharmaceutics 2020; 12:pharmaceutics12060595. [PMID: 32604843 PMCID: PMC7356959 DOI: 10.3390/pharmaceutics12060595] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 12/02/2022] Open
Abstract
Immunotherapy has changed the paradigm of cancer treatments. In this way, several combinatorial strategies based on monoclonal antibodies (mAb) such as anti (a)-PD-1 or anti (a)-PD-L1 are often reported to yield promising clinical benefits. However, the pharmacokinetic (PK) behavior of these mAbs is a critical issue that requires selective analytical techniques. Indeed, few publications report data on a-PD1/a-PD-L1 exposure and its relationship with therapeutic or toxic effects. In this regard, preclinical assays allow the time profiles of antibody plasma concentrations to be characterized rapidly and easily, which may help to increase PK knowledge. In this study, we have developed and validated two in-house ELISAs to quantify a-PD-1 and a-PD-L1 in plasma collected from tumor-bearing mice. The linear range for the a-PD-1 assay was 2.5–125 ng/mL and 0.11–3.125 ng/mL for the a-PD-L1 assay, whereas the intra-and inter-day precision was lower than 20% for both analytes. The PK characterization revealed a significant decrease in drug exposure after administration of multiple doses. Plasma half-life for a-PD-1 was slightly shorter (22.3 h) than for a-PD-L1 (46.7 h). To our knowledge, this is the first reported preclinical ELISA for these immune checkpoint inhibitors, which is sufficiently robust to be used in different preclinical models. These methods can help to understand the PK behavior of these antibodies under different scenarios and the relationship with response, thus guiding the choice of optimal doses in clinical settings.
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Affiliation(s)
- Sara Zalba
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31008 Pamplona, Spain; (S.Z.); (A.M.C.-S.)
| | - Ana M. Contreras-Sandoval
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31008 Pamplona, Spain; (S.Z.); (A.M.C.-S.)
- Department of Molecular Oncology, Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Eva Martisova
- Division of Gene Therapy and Regulation of Gene Expression, CIMA Universidad de Navarra and Instituto de Investigación Sanitaria de Navarra (IdISNA), 31008 Pamplona, Spain; (E.M.); (C.S.)
| | - Reno Debets
- Laboratory of Experimental Tumor, Medical Oncology Department, Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands;
| | - Christian Smerdou
- Division of Gene Therapy and Regulation of Gene Expression, CIMA Universidad de Navarra and Instituto de Investigación Sanitaria de Navarra (IdISNA), 31008 Pamplona, Spain; (E.M.); (C.S.)
| | - María Jesús Garrido
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31008 Pamplona, Spain; (S.Z.); (A.M.C.-S.)
- Correspondence: ; Tel.: +34-348425600 (ext. 806529)
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Saeed M, Zalba S, Seynhaeve ALB, Debets R, Ten Hagen TLM. Liposomes targeted to MHC-restricted antigen improve drug delivery and antimelanoma response. Int J Nanomedicine 2019; 14:2069-2089. [PMID: 30988609 PMCID: PMC6440454 DOI: 10.2147/ijn.s190736] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Purpose Melanoma is the most aggressive form of skin cancer. Chemotherapy at a late stage fails due to low accumulation in tumors, indicating the need for targeted therapy. Materials and methods To increase drug uptake by tumor cells, we have targeted doxorubicin-containing liposomes using a T-cell receptor (TCR)-like antibody (scFv G8 and Hyb3) directed against melanoma antigen A1 (MAGE-A1) presented by human leukocyte antigen A1 (M1/A1). With the use of flow cytometry and confocal microscopy, we have tested our formulation in vitro. In vivo pharmacokinetics was done in tumor-free nu/nu mice, while biodistribution and efficacy study was done in nu/nu mice xenograft. Results We demonstrated two to five times higher binding and internalization of these immunoliposomes by M1+/A1+ melanoma cells in vitro in comparison with nontargeted liposomes. Cytotoxicity assay showed significant tumor cell kill at 10 µM doxorubicin (DXR) for targeted vs nontargeted liposomes. In vivo pharmacokinetics of nontargeted and targeted liposomes were similar, while accumulation of targeted liposomes was 2- to 2.5-fold and 6.6-fold enhanced when compared with nontargeted liposomes and free drug, respectively. Notably, we showed a superior antitumor activity of MAGE-A1-targeted DXR liposomes toward M1+/A1+ expressing tumors in mice compared with the treatment of M1−/A1+ tumors. Our results indicate that targeted liposomes showed better cytotoxicity in vitro and pharmacokinetics in vivo. Conclusion Liposomes decorated with TCR-mimicking scFv antibodies effectively and selectively target antigen-positive melanoma. We showed that DXR-loaded liposomes coupled to anti-M1/-A1 scFv inflict a significant antitumor response. Targeting tumor cells specifically promotes internalization of drug-containing nanoparticles and may improve drug delivery and ultimately antitumor efficacy. Our data argue that targeting MAGE in A1 context, by nanosized carriers decorated with TCR-like antibodies mimicking scFv, can be used as a theragnostic platform for drug delivery, immunotherapy, and potentially imaging, and diagnosis of melanoma.
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Affiliation(s)
- Mesha Saeed
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands,
| | - Sara Zalba
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands,
| | - Ann L B Seynhaeve
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands,
| | - Reno Debets
- Laboratory of Tumor Immunology, Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Timo L M Ten Hagen
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands,
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Merino M, Contreras A, Casares N, Troconiz IF, Ten Hagen TL, Berraondo P, Zalba S, Garrido MJ. A new immune-nanoplatform for promoting adaptive antitumor immune response. Nanomedicine 2019; 17:13-25. [PMID: 30654186 DOI: 10.1016/j.nano.2018.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 01/02/2023]
Abstract
Immunoliposomes (ILs), obtained with monoclonal antibodies (mAbs) decorating the liposome surface, are used for cancer treatment. These mAbs provide the recognition of molecules upregulated in cancer cells, like Programmed Death-Ligand 1 (PD-L1), an immune-checkpoint involved in tumor resistance, forming a complex that blocks this molecule and thereby, induces antitumor immune response. This mechanism introduces a new concept for ILs. ILs coupled to anti-PD-L1 or its Fab' fragment have been developed and in vitro/in vivo characterized. Factors such as coupling methods, PEG density and ligand size were optimized. In vitro data showed that Fab'-ILs displayed the highest PD-L1 cell interaction, correlating with a higher in vivo tumor accumulation and an increase of effector cytotoxic CD8+ T cells, providing tumor shrinkage and total regression in 20% of mice. Therefore, a novel immune-nanoplatform able to modulate the immune system has been developed, allowing the encapsulation of several agents for combinatorial therapies.
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Affiliation(s)
- María Merino
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - Ana Contreras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - Noelia Casares
- Program of Immunology and Immunotherapy, CIMA, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - Iñaki F Troconiz
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - Timo Lm Ten Hagen
- Laboratory of Experimental Oncology, Erasmus MC, Rotterdam, The Netherlands
| | - Pedro Berraondo
- Program of Immunology and Immunotherapy, CIMA, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - Sara Zalba
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdisNA)
| | - María J Garrido
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdisNA).
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Merino M, Zalba S, Garrido MJ. Immunoliposomes in clinical oncology: State of the art and future perspectives. J Control Release 2018; 275:162-176. [DOI: 10.1016/j.jconrel.2018.02.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/09/2018] [Accepted: 02/10/2018] [Indexed: 02/02/2023]
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11
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Quiroga S, Kacoliris F, García I, Povedano H, Velasco M, Zalba S. Invasive rainbow trout Oncorhynchus mykiss preying on the endangered naked characin Gymnocharacinus bergii at its thermal limits. J Fish Biol 2017; 91:1745-1749. [PMID: 29076524 DOI: 10.1111/jfb.13478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
The expansion of the invasive rainbow trout Oncorhynchus mykiss into the thermal headwaters of Valcheta Stream (Patagonia, Argentina) and new predation records on the endangered endemic naked characin Gymnocharacinus bergii are presented here. These findings are discussed in relation to the contemporary evolution and thermal refuges hypothesis. This study has immediate implications for the conservation of G. bergii.
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Affiliation(s)
- S Quiroga
- CZA, Centro de Zoología Aplicada, Universidad Nacional de Córdoba, Rondeau 798 (X5000AVP), Córdoba, Argentina
| | - F Kacoliris
- Sección Herpetología, División Zoología de Vertebrados, Universidad Nacional De La Plata, CONICET, Calle 122 y 60 s/n (1900), La Plata, Argentina
| | - I García
- ILPLA, Instituto de Limnología Dr. Raúl A. Ringuelet, CONICET, Boulevard 120 y 62 s/n (1900), La Plata, Argentina
| | - H Povedano
- Sección Herpetología, División Zoología de Vertebrados, Universidad Nacional De La Plata, CONICET, Calle 122 y 60 s/n (1900), La Plata, Argentina
| | - M Velasco
- Sección Herpetología, División Zoología de Vertebrados, Universidad Nacional De La Plata, CONICET, Calle 122 y 60 s/n (1900), La Plata, Argentina
| | - S Zalba
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, CONICET, Calle San Juan 670 (B8000ICN), Bahía Blanca, Argentina
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12
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Ženka J, Caisová V, Uher O, Nedbalová P, Kvardová K, Masáková K, Krejčová G, Paďouková L, Jochmanová I, Wolf KI, Chmelař J, Kopecký J, Loumagne L, Mestadier J, D’agostino S, Rohaut A, Ruffin Y, Croize V, Lemaître O, Sidhu SS, Althammer S, Steele K, Rebelatto M, Tan T, Wiestler T, Spitzmueller A, Korn R, Schmidt G, Higgs B, Li X, Shi L, Jin X, Ranade K, Koeck S, Amann A, Gamerith G, Zwierzina M, Lorenz E, Zwierzina H, Kern J, Riva M, Baert T, Coosemans A, Giovannoni R, Radaelli E, Gsell W, Himmelreich U, Van Ranst M, Xing F, Qian W, Dong C, Xu X, Guo S, Shi Q, Quandt D, Seliger B, Plett C, Amberger DC, Rabe A, Deen D, Stankova Z, Hirn A, Vokac Y, Werner J, Krämer D, Rank A, Schmid C, Schmetzer H, Guerin M, Weiss JM, Regnier F, Renault G, Vimeux L, Peranzoni E, Feuillet V, Thoreau M, Guilbert T, Trautmann A, Bercovici N, Amberger DC, Doraneh-Gard F, Boeck CL, Plett C, Gunsilius C, Kugler C, Werner J, Schmohl J, Kraemer D, Ismann B, Rank A, Schmid C, Schmetzer HM, Markota A, Ochs C, May P, Gottschlich A, Gosálvez JS, Karches C, Wenk D, Endres S, Kobold S, Hilmenyuk T, Klar R, Jaschinski F, Gamerith G, Augustin F, Lorenz E, Manzl C, Hoflehner E, Moser P, Zelger B, Köck S, Amann A, Kern J, Schäfer G, Öfner D, Maier H, Zwierzina H, Sopper S, Prado-Garcia H, Romero-Garcia S, Sandoval-Martínez R, Puerto-Aquino A, Lopez-Gonzalez J, Rumbo-Nava U, Klar R, Hilmenyuk T, Jaschinski F, Coosemans A, Baert T, Van Hoylandt A, Busschaert P, Vergote I, Baert T, Van Hoylandt A, Busschaert P, Vergote I, Coosemans A, Laengle J, Pilatova K, Budinska E, Bencsikova B, Sefr R, Nenutil R, Brychtova V, Fedorova L, Hanakova B, Zdrazilova-Dubska L, Allen C, Ku YC, Tom W, Sun Y, Pankov A, Looney T, Hyland F, Au-Young J, Mongan A, Becker A, Tan JBL, Chen A, Lawson K, Lindsey E, Powers JP, Walters M, Schindler U, Young S, Jaen JC, Yin S, Chen Y, Gullo I, Gonçalves G, Pinto ML, Athelogou M, Almeida G, Huss R, Oliveira C, Carneiro F, Merz C, Sykora J, Hermann K, Hussong R, Richards DM, Fricke H, Hill O, Gieffers C, Pinho MP, Barbuto JAM, McArdle SE, Foulds G, Vadakekolathu JN, Abdel-Fatah TMA, Johnson C, Hood S, Moseley P, Rees RC, Chan SYT, Pockley AG, Rutella S, Geppert C, Hartmann A, Kumar KS, Gokilavani M, Wang S, Merz C, Richards DM, Sykora J, Redondo-Müller M, Heinonen K, Marschall V, Thiemann M, Fricke H, Gieffers C, Hill O, Zhang L, Mao B, Jin Y, Zhai G, Li Z, Wang Z, Qian W, An X, Qiao M, Zhang J, Shi Q, Weber J, Kluger H, Halaban R, Sznol M, Roder H, Roder J, Grigorieva J, Asmellash S, Oliveira C, Meyer K, Steingrimsson A, Blackmon S, Sullivan R, Boeck CL, Amberger DC, Doraneh-Gard F, Sutanto W, Guenther T, Schmohl J, Schuster F, Salih H, Babor F, Borkhardt A, Schmetzer H, Kim Y, Oh I, Park C, Ahn S, Na K, Song S, Choi Y, Fedorova L, Poprach A, Lakomy R, Selingerova I, Demlova R, Pilatova K, Kozakova S, Valik D, Petrakova K, Vyzula R, Zdrazilova-Dubska L, Aguilar-Cazares D, Galicia-Velasco M, Camacho-Mendoza C, Islas-Vazquez L, Chavez-Dominguez R, Gonzalez-Gonzalez C, Prado-Garcia H, Lopez-Gonzalez JS, Yang S, Moynihan KD, Noh M, Bekdemir A, Stellacci F, Irvine DJ, Volz B, Kapp K, Oswald D, Wittig B, Schmidt M, Chavez-Dominguez R, Aguilar-Cazares D, Prado-Garcia H, Islas-Vazquez L, Lopez-Gonzalez JS, Kleef R, Bohdjalian A, McKee D, Moss RW, Saeed M, Zalba S, Debets R, ten Hagen TLM, Javed S, Becher J, Koch-Nolte F, Haag F, Gordon EM, Sankhala KK, Stumpf N, Tseng W, Chawla SP, Suárez NG, Báez GB, Rodríguez MC, Pérez AG, García LC, Fernández DH, Pous JR, Ramírez BS, Jacoberger-Foissac C, Saliba H, Seguin C, Brion A, Frisch B, Fournel S, Heurtault B, Otterhaug T, Håkerud M, Nedberg A, Edwards V, Selbo P, Høgset A, Jaitly T, Dörrie J, Schaft N, Gross S, Schuler-Thurner B, Gupta S, Taher L, Schuler G, Vera J, Rataj F, Kraus F, Grassmann S, Chaloupka M, Lesch S, Heise C, Endres S, Kobold S, Cadilha BML, Dorman K, Heise C, Rataj F, Endres S, Kobold S. Abstracts from the 4th ImmunoTherapy of Cancer Conference. J Immunother Cancer 2017. [PMCID: PMC5374589 DOI: 10.1186/s40425-017-0219-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Saeed M, van Brakel M, Zalba S, Schooten E, Rens JAP, Koning GA, Debets R, Ten Hagen TLM. Targeting melanoma with immunoliposomes coupled to anti-MAGE A1 TCR-like single-chain antibody. Int J Nanomedicine 2016; 11:955-75. [PMID: 27022262 PMCID: PMC4792179 DOI: 10.2147/ijn.s96123] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Therapy of melanoma using T-cells with genetically introduced T-cell receptors (TCRs) directed against a tumor-selective cancer testis antigen (CTA) NY-ESO1 demonstrated clear antitumor responses in patients without side effects. Here, we exploited the concept of TCR-mediated targeting through introduction of single-chain variable fragment (scFv) antibodies that mimic TCRs in binding major histocompatibility complex-restricted CTA. We produced scFv antibodies directed against Melanoma AntiGEn A1 (MAGE A1) presented by human leukocyte antigen A1 (HLA-A1), in short M1/A1, and coupled these TCR-like antibodies to liposomes to achieve specific melanoma targeting. Two anti-M1/A1 antibodies with different ligand-binding affinities were derived from a phage-display library and reformatted into scFvs with an added cysteine at their carboxyl termini. Protein production conditions, ie, bacterial strain, temperature, time, and compartments, were optimized, and following production, scFv proteins were purified by immobilized metal ion affinity chromatography. Batches of pure scFvs were validated for specific binding to M1/A1-positive B-cells by flow cytometry. Coupling of scFvs to liposomes was conducted by employing different conditions, and an optimized procedure was achieved. In vitro experiments with immunoliposomes demonstrated binding of M1/A1-positive B-cells as well as M1/A1-positive melanoma cells and internalization by these cells using flow cytometry and confocal microscopy. Notably, the scFv with nonenhanced affinity of M1/A1, but not the one with enhanced affinity, was exclusively bound to and internalized by melanoma tumor cells expressing M1/A1. Taken together, antigen-mediated targeting of tumor cells as well as promoting internalization of nanoparticles by these tumor cells is mediated by TCR-like scFv and can contribute to melanoma-specific targeting.
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Affiliation(s)
- Mesha Saeed
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, the Netherlands
| | - Mandy van Brakel
- Laboratory of Tumor Immunology, Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Sara Zalba
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, the Netherlands
| | - Erik Schooten
- Laboratory of Tumor Immunology, Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Joost A P Rens
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, the Netherlands
| | - Gerben A Koning
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, the Netherlands
| | - Reno Debets
- Laboratory of Tumor Immunology, Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Timo L M Ten Hagen
- Laboratory of Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, the Netherlands
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Zalba S, Contreras AM, Merino M, Navarro I, de Ilarduya CT, Trocóniz IF, Koning G, Garrido MJ. EGF-liposomes promote efficient EGFR targeting in xenograft colocarcinoma model. Nanomedicine (Lond) 2016; 11:465-77. [DOI: 10.2217/nnm.15.208] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Aim: Development of EGF-liposomes (LP-EGF) for selective molecules delivery in tumors expressing EGFR. Material & methods: In vitro cellular interaction of EGF-LP and nontargeted liposomes (LP-N) was assayed at 37 and 4°C in cells expressing different EGFR levels. Receptor-mediated uptake was investigated by competition with a monoclonal antibody anti-EGFR. Selective intracellular drug delivery and efficacy was tested by oxaliplatin encapsulation. In vivo biodistribution of LP-N and LP-EGF was done in xenograft model. Results: LP-EGF was internalized by an active and selective mechanism through EGFR without receptor activation. Oxaliplatin LP-EGF decreased IC50 between 48 and 13% in cell EGFR+. LP-EGF was accumulated in tumor over 72 h postdosing, while LP-N in spleen. Conclusion: LP-EGF represents an attractive nanosystem for cancer therapy or diagnosis.
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Affiliation(s)
- Sara Zalba
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
- Innovative Targeting, Laboratory Experimental Surgical Oncology, Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Ana Margarita Contreras
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - María Merino
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - Iñigo Navarro
- Department of Chemistry & Edaphology, University of Navarra, Pamplona, Spain
| | - Conchita Tros de Ilarduya
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - Iñaki F Trocóniz
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - Gerben Koning
- Innovative Targeting, Laboratory Experimental Surgical Oncology, Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - María J Garrido
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
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Zalba S, Contreras AM, Haeri A, ten Hagen TL, Navarro I, Koning G, Garrido MJ. Cetuximab-oxaliplatin-liposomes for epidermal growth factor receptor targeted chemotherapy of colorectal cancer. J Control Release 2015; 210:26-38. [DOI: 10.1016/j.jconrel.2015.05.271] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 05/08/2015] [Accepted: 05/11/2015] [Indexed: 01/03/2023]
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Buñuales M, Düzgüneş N, Zalba S, Garrido MJ, Tros de ILarduya C. Efficient gene delivery by EGF-lipoplexes in vitro and in vivo. Nanomedicine (Lond) 2011; 6:89-98. [DOI: 10.2217/nnm.10.100] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Aims: In this work, we have evaluated the ability of targeted lipoplexes to enhance transgene expression in EGF receptor (EGFR) overexpressing tumor cells by using lipoplexes. Materials & methods: We prepared DOTAP/cholesterol liposomes modified with EGF at 0.5/1, 1/1, 2/1 and 5/1 lipid/DNA (+/-) charge ratio by sequentially mixing the liposomes with the ligand and adding the reporter or the therapeutic plasmid gene, pCMVLuc (pVR1216) or pCMVIL12, respectively. HepG2, DHDK12proB and SW620 cells were used for in vitro experiments, which were performed in the presence of 60% serum. Results: The characterization of EGF-lipoplexes indicated a size close to 300 nm and a variable net surface charge as a function of the amount of EGF associated to the cationic liposomes. EGF-lipoplexes, which showed an increased transfection activity, were positively charged, noncytotoxic and highly effective in protecting DNA from DNase I attack. Transfection activity in vitro resulted in an enhancement in the luciferase and IL-12 expression by EGF-lipoplexes compared with those without ligand (plain-lipoplexes) and to naked DNA. The results observed in SW620 cells, which are deficient in EGFR, confirmed that DNA uptake was predominantly via EGFR-mediated endocytosis. In vivo transfection activity was confirmed by luciferase imaging in living mice. Bioluminiscence could be detected mainly in the lung with a maximum signal 24 h after application. The resulting EGF-lipoplexes significantly increased the level of gene expression in mice compared with control or naked DNA. Conclusion: These findings indicate that these nanovectors may be an adequate alternative to viral vectors for gene therapy.
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Affiliation(s)
- María Buñuales
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - Nejat Düzgüneş
- Department of Microbiology, University of The Pacific, San Francisco, CA, USA
| | - Sara Zalba
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
| | - María J Garrido
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
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Moreno D, Zalba S, Navarro I, Tros de Ilarduya C, Garrido MJ. Pharmacodynamics of cisplatin-loaded PLGA nanoparticles administered to tumor-bearing mice. Eur J Pharm Biopharm 2010; 74:265-74. [DOI: 10.1016/j.ejpb.2009.10.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Revised: 10/22/2009] [Accepted: 10/27/2009] [Indexed: 11/15/2022]
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Moreno D, Zalba S, Colom H, Trocóniz IF, Tros de Ilarduya C, Garrido MJ. Biopharmaceutic and pharmacodynamic modeling of the in vitro antiproliferative effect of new controlled delivery systems of cisplatin. Eur J Pharm Sci 2009; 37:341-50. [DOI: 10.1016/j.ejps.2009.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 01/15/2009] [Accepted: 03/07/2009] [Indexed: 11/15/2022]
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