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Yousry C, Goyal M, Gupta V. Excipients for Novel Inhaled Dosage Forms: An Overview. AAPS PharmSciTech 2024; 25:36. [PMID: 38356031 DOI: 10.1208/s12249-024-02741-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 01/05/2024] [Indexed: 02/16/2024] Open
Abstract
Pulmonary drug delivery is a form of local targeting to the lungs in patients with respiratory disorders like cystic fibrosis, pulmonary arterial hypertension (PAH), asthma, chronic pulmonary infections, and lung cancer. In addition, noninvasive pulmonary delivery also presents an attractive alternative to systemically administered therapeutics, not only for localized respiratory disorders but also for systemic absorption. Pulmonary delivery offers the advantages of a relatively low dose, low incidence of systemic side effects, and rapid onset of action for some drugs compared to other systemic administration routes. While promising, inhaled delivery of therapeutics is often complex owing to factors encompassing mechanical barriers, chemical barriers, selection of inhalation device, and limited choice of dosage form excipients. There are very few excipients that are approved by the FDA for use in developing inhaled drug products. Depending upon the dosage form, and inhalation devices such as pMDIs, DPIs, and nebulizers, different excipients can be used to provide physical and chemical stability and to deliver the dose efficiently to the lungs. This review article focuses on discussing a variety of excipients that have been used in novel inhaled dosage forms as well as inhalation devices.
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Affiliation(s)
- Carol Yousry
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York, 11439, USA
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Aini, Cairo, 11562, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, School of Pharmacy, Newgiza University, Giza, Egypt
| | - Mimansa Goyal
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York, 11439, USA
| | - Vivek Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York, 11439, USA.
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2
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Thiruvengadam M, Chi HY, Kim SH. Impact of nanopollution on plant growth, photosynthesis, toxicity, and metabolism in the agricultural sector: An updated review. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108370. [PMID: 38271861 DOI: 10.1016/j.plaphy.2024.108370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024]
Abstract
Nanotechnology provides distinct benefits to numerous industrial and commercial fields, and has developed into a discipline of intense interest to researchers. Nanoparticles (NPs) have risen to prominence in modern agriculture due to their use in agrochemicals, nanofertilizers, and nanoremediation. However, their potential negative impacts on soil and water ecosystems, as well as plant growth and physiology, have caused concern for researchers and policymakers. Concerns have been expressed regarding the ecological consequences and toxicity effects associated with nanoparticles as a result of their increased production and usage. Moreover, the accumulation of nanoparticles in the environment poses a risk, not only because of the possibility of plant damage but also because nanoparticles may infiltrate the food chain. In this review, we have documented the beneficial and detrimental effects of NPs on seed germination, shoot and root growth, plant biomass, and nutrient assimilation. Nanoparticles exert toxic effects by inducing ROS generation and stimulating cytotoxic and genotoxic effects, thereby leading to cell death in several plant species. We have provided possible mechanisms by which nanoparticles induce toxicity in plants. In addition to the toxic effects of NPs, we highlighted the importance of nanomaterials in the agricultural sector. Thus, understanding the structure, size, and concentration of nanoparticles that will improve plant growth or induce plant cell death is essential. This updated review reveals the multifaceted connection between nanoparticles, soil and water pollution, and plant biology in the context of agriculture.
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Affiliation(s)
- Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Hee Youn Chi
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Seung-Hyun Kim
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea.
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3
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Józsa L, Nemes D, Pető Á, Kósa D, Révész R, Bácskay I, Haimhoffer Á, Vasvári G. Recent Options and Techniques to Assess Improved Bioavailability: In Vitro and Ex Vivo Methods. Pharmaceutics 2023; 15:pharmaceutics15041146. [PMID: 37111632 PMCID: PMC10144798 DOI: 10.3390/pharmaceutics15041146] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
Bioavailability assessment in the development phase of a drug product is vital to reveal the disadvantageous properties of the substance and the possible technological interventions. However, in vivo pharmacokinetic studies provide strong evidence for drug approval applications. Human and animal studies must be designed on the basis of preliminary biorelevant experiments in vitro and ex vivo. In this article, the authors have reviewed the recent methods and techniques from the last decade that are in use for assessing the bioavailability of drug molecules and the effects of technological modifications and drug delivery systems. Four main administration routes were selected: oral, transdermal, ocular, and nasal or inhalation. Three levels of methodologies were screened for each category: in vitro techniques with artificial membranes; cell culture, including monocultures and co-cultures; and finally, experiments where tissue or organ samples were used. Reproducibility, predictability, and level of acceptance by the regulatory organizations are summarized for the readers.
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Affiliation(s)
- Liza Józsa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Dániel Nemes
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Ágota Pető
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Dóra Kósa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Réka Révész
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Ádám Haimhoffer
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Gábor Vasvári
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
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4
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Fei Q, Bentley I, Ghadiali SN, Englert JA. Pulmonary drug delivery for acute respiratory distress syndrome. Pulm Pharmacol Ther 2023; 79:102196. [PMID: 36682407 PMCID: PMC9851918 DOI: 10.1016/j.pupt.2023.102196] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023]
Abstract
The acute respiratory distress syndrome (ARDS) is a life-threatening condition that causes respiratory failure. Despite numerous clinical trials, there are no molecularly targeted pharmacologic therapies to prevent or treat ARDS. Drug delivery during ARDS is challenging due to the heterogenous nature of lung injury and occlusion of lung units by edema fluid and inflammation. Pulmonary drug delivery during ARDS offers several potential advantages including limiting the off-target and off-organ effects and directly targeting the damaged and inflamed lung regions. In this review we summarize recent ARDS clinical trials using both systemic and pulmonary drug delivery. We then discuss the advantages of pulmonary drug delivery and potential challenges to its implementation. Finally, we discuss the use of nanoparticle drug delivery and surfactant-based drug carriers as potential strategies for delivering therapeutics to the injured lung in ARDS.
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Affiliation(s)
- Qinqin Fei
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH, 43210, USA; Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA; Department of Biomedical Engineering, The Ohio State University, 140West 19th Avenue, Columbus, OH, 43210, USA; The Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA
| | - Ian Bentley
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA; The Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA
| | - Samir N Ghadiali
- Department of Biomedical Engineering, The Ohio State University, 140West 19th Avenue, Columbus, OH, 43210, USA; The Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA
| | - Joshua A Englert
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA; The Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 West 12th Avenue, Columbus, OH, 43210, USA.
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5
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Nußbaum SM, Krabbe J, Böll S, Babendreyer A, Martin C. Functional changes in long-term incubated rat precision-cut lung slices. Respir Res 2022; 23:261. [PMID: 36127699 PMCID: PMC9490993 DOI: 10.1186/s12931-022-02169-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 09/02/2022] [Indexed: 11/10/2022] Open
Abstract
Background Respiratory diseases represent a global health burden. Because research on therapeutic strategies of airway diseases is essential, the technique of precision-cut lung slices (PCLS) has been developed and widely studied. PCLS are an alternative ex vivo model and have the potential to replace and reduce in vivo animal models. So far, the majority of studies was conducted with short-term cultivated PCLS (≤ 72 h). As there is large interest in research of chronic diseases and chronic toxicity, feasibility of cultivating human PCLS long-term over 2 weeks and recently over 4 weeks was investigated by another research group with successful results. Our aim was to establish a model of long-term cultivated rat PCLS over a period of 29 days. Methods Rat PCLS were cultured for 29 days and analysed regarding viability, histopathology, reactivity and gene expression at different time points during cultivation. Results Cultivation of rat PCLS over a 29-day time period was successful with sustained viability. Furthermore, the ability of bronchoconstriction was maintained between 13 and 25 days, depending on the mediator. However, reduced relaxation, altered sensitivity and increased respiratory tone were observed. Regarding transcription, alteration in gene expression pattern of the investigated target genes was ascertained during long-term cultivation with mixed results. Furthermore, the preparation of PCLS seems to influence messenger ribonucleic acid (mRNA) expression of most target genes. Moreover, the addition of fetal bovine serum (FBS) to the culture medium did not improve viability of PCLS. In contrast to medium without FBS, FBS seems to affect measurements and resulted in marked cellular changes of metaplastic and/or regenerative origin. Conclusions Overall, a model of long-term cultivated rat PCLS which stays viable for 29 days and reactive for at least 13 days could be established. Before long-term cultivated PCLS can be used for in-depth study of chronic diseases and chronic toxicity, further investigations have to be made. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02169-5.
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Affiliation(s)
- Sarah Marie Nußbaum
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Julia Krabbe
- Institute of Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Svenja Böll
- Department of Pediatrics, Medical Faculty, RWTH Aachen University, University Hospital Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Aaron Babendreyer
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Christian Martin
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany.
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6
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Lazo REL, Mengarda M, Almeida SL, Caldonazo A, Espinoza JT, Murakami FS. Advanced formulations and nanotechnology-based approaches for pulmonary delivery of sildenafil: A scoping review. J Control Release 2022; 350:308-323. [PMID: 35995298 DOI: 10.1016/j.jconrel.2022.08.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/29/2022]
Abstract
Oral sildenafil (SDF) is used to treat pulmonary arterial hypertension (PAH), and its bioavailability is approximately 40%. Several formulations of nano and microparticles (for pulmonary delivery) are being developed because it is possible to improve characteristics such as release time, bioavailability, dose, frequency, and even directly target the drug to the lungs. This review summarizes the latest SDF drug delivery systems for PAH and explains challenges related to the development, the preclinical, and the clinical studies. A scoping review was conducted by searching electronic databases including PubMed, Scopus, and Web of Science to identify studies published between 2001 and 2021. From 300 articles found, 31 met the inclusion criteria. This review identified colloidal formulations such as polymeric, lipid, and metal-organic framework nanoparticles. Strategies were determined to reach the deep airways such as polymeric microparticles, large porous microparticles, nanocomposites, and nano in microparticles. Finally, aspects related to toxicological, pharmacokinetics, and gaps in information for potential use in humans were discussed. SDF formulations are significant candidates for the treatment of PAH by inhalation. In summation, future preclinical studies are still required in large animals, as there is no particular formulation yet submitted to clinical studies.
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Affiliation(s)
- Raul Edison Luna Lazo
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Curitiba, 80210-170 Paraná, Brazil
| | - Mariana Mengarda
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Curitiba, 80210-170 Paraná, Brazil
| | - Susana Leão Almeida
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Curitiba, 80210-170 Paraná, Brazil
| | - Aline Caldonazo
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Curitiba, 80210-170 Paraná, Brazil
| | - Joel Toribio Espinoza
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, State University of Ponta Grossa, Ponta Grossa, 84030-900 Paraná, Brazil
| | - Fábio Seigi Murakami
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Curitiba, 80210-170 Paraná, Brazil.
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7
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Ahmad A. Pharmacological Strategies and Recent Advancement in Nano-Drug Delivery for Targeting Asthma. Life (Basel) 2022; 12:life12040596. [PMID: 35455087 PMCID: PMC9032250 DOI: 10.3390/life12040596] [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: 02/26/2022] [Revised: 04/08/2022] [Accepted: 04/15/2022] [Indexed: 12/22/2022] Open
Abstract
With a high prevalence globally, asthma is a severe hazard to human health, as well as an economic and social burden. There are now novel therapies available for asthma with the use of nanotechnology. Recent developments in nanoscience and medicine have encouraged the creation of inhalable nanomedicines that can enhance the efficacy, patient compliance, and life quality for sufferers of asthma. Nanocarriers for asthma therapy, including liposomes, micelles, polymers, dendrimers, and inorganics, are presented in depth in this study as well as the current research status of these nanocarriers. Aerosolized nanomaterial-based drug transport systems are currently being developed, and some examples of these systems, as well as prospective future paths, are discussed. New research subjects include nano-modification of medicines and the development of innovative nano-drugs. Clinical experiments have proven that nanocarriers are both safe and effective. Before nanotherapy can be applied in clinical practice, several obstacles must be addressed. We look at some of the most recent research discoveries in the subject of nanotechnology and asthma therapy in this article.
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Affiliation(s)
- Aftab Ahmad
- Health Information Technology Department, Faculty of Applied Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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8
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Bouyahya A, El Omari N, Hakkour M, El Menyiy N, Benali T, Kulikov D, Karpukhin M, Shariati MA, Venkidasamy B, Thiruvengadam M, Chamkhi I. A review on transcriptomic and metabolomic responses of plants to nanopollution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:22913-22929. [PMID: 35064510 DOI: 10.1007/s11356-022-18659-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Nanoparticles (NPs) are tiny substances that can exist in the soil with different forms at different concentrations. In general, they present enormous effects on the growth, physiology, and molecular responses in plants. Indeed, they can penetrate the roots, stem, and leaves via different ways like stomata, plasmodesmata, xylem, and phloem and through transporter proteins like aquaporins. Once entered the plants, NPs induce reactive oxygen species (ROS) formation, and the plants respond to ROS by stimulates the production of antioxidants and antioxidant enzymes as well as the production of various primary and secondary metabolites like flavonoids and phenolic compounds. In addition, NPs have significantly affected the distribution of mineral profiles in plants. NPs considerably affect plant growth and yield in a dose-dependent fashion. At higher concentrations, they induced potent cytotoxicity and genotoxicity and thus reduced the growth and development of plants in turn decrease the yield. NPs exert potent changes in the transcriptome and metabolome pattern of plants to counteract the ROS imposed by NPs. This review depicts the overview of transcriptomic and metabolomic responses of plants towards nanopollution.
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Affiliation(s)
- Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, and Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Raba, Morocco
| | - Maryam Hakkour
- Laboratory of Biodiversity, Ecology, and Genome, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Naoual El Menyiy
- Department of Biology, Faculty of Science, University Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Taoufiq Benali
- Environment and Health Team, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco
| | - Dmitriy Kulikov
- K.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), Moscow, Russian Federation
| | - Mikhail Karpukhin
- Department of vegetable growing and fruit growing of the prof. N.F. Konyaev, Ural State Agrarian University, 42 K.Liebknecht st, 620075, Yekaterinburg, Russian Federation
| | - Mohammad Ali Shariati
- K.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), Moscow, Russian Federation
| | - Baskar Venkidasamy
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore, Tamil Nadu, 641062, India.
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, 05029, Seoul, Republic of Korea.
| | - Imane Chamkhi
- Centre GEOPAC, Laboratoire de Geobiodiversite Et Patrimoine Naturel, Université Mohammed V de Rabat, Institut Scientifique Rabat, Rabat, Morocco
- University Mohammed VI Polytechnic, Agrobiosciences Program, Lot 660, Hay Moulay Rachid, Benguerir, Morocco
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9
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Cidem A, Bradbury P, Traini D, Ong HX. Modifying and Integrating in vitro and ex vivo Respiratory Models for Inhalation Drug Screening. Front Bioeng Biotechnol 2020; 8:581995. [PMID: 33195144 PMCID: PMC7644812 DOI: 10.3389/fbioe.2020.581995] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/06/2020] [Indexed: 01/03/2023] Open
Abstract
For the past 50 years, the route of inhalation has been utilized to administer therapies to treat a variety of respiratory and pulmonary diseases. When compared with other drug administration routes, inhalation offers a targeted, non-invasive approach to deliver rapid onset of drug action to the lung, minimizing systemic drug exposure and subsequent side effects. However, despite advances in inhaled therapies, there is still a need to improve the preclinical screening and the efficacy of inhaled therapeutics. Innovative in vitro models of respiratory physiology to determine therapeutic efficacy of inhaled compounds have included the use of organoids, micro-engineered lung-on-chip systems and sophisticated bench-top platforms to enable a better understanding of pulmonary mechanisms at the molecular level, rapidly progressing inhaled therapeutic candidates to the clinic. Furthermore, the integration of complementary ex vivo models, such as precision-cut lung slices (PCLS) and isolated perfused lung platforms have further advanced preclinical drug screening approaches by providing in vivo relevance. In this review, we address the challenges and advances of in vitro models and discuss the implementation of ex vivo inhaled drug screening models. Specifically, we address the importance of understanding human in vivo pulmonary mechanisms in assessing strategies of the preclinical screening of drug efficacy, toxicity and delivery of inhaled therapeutics.
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Affiliation(s)
- Aylin Cidem
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, NSW, Australia
| | - Peta Bradbury
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, NSW, Australia.,Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Daniela Traini
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, NSW, Australia.,Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Hui Xin Ong
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, NSW, Australia.,Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
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10
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Haque S, Pouton CW, McIntosh MP, Ascher DB, Keizer DW, Whittaker MR, Kaminskas LM. The impact of size and charge on the pulmonary pharmacokinetics and immunological response of the lungs to PLGA nanoparticles after intratracheal administration to rats. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 30:102291. [PMID: 32841737 DOI: 10.1016/j.nano.2020.102291] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 08/05/2020] [Accepted: 08/12/2020] [Indexed: 11/16/2022]
Abstract
Polylactide-co-glycolide (PLGA) nanoparticles are one of the most commonly explored biodegradable polymeric drug carriers for inhaled delivery. Despite their advantages as inhalable nanomedicine scaffolds, we still lack a complete understanding of the kinetics and major pathways by which these materials are cleared from the lungs. This information is important to evaluate their safety over prolonged use and enable successful clinical translation. This study aimed to determine how the size and charge of 3H-labeled PLGA nanoparticles affect the kinetics and mechanisms by which they are cleared from the lungs and their safety in the lungs. The results showed that lung clearance kinetics and retention patterns were more significantly defined by particle size, whereas lung clearance pathways were largely influenced by particle charge. Each of the nanoparticles caused transient inflammatory changes in the lungs after a single dose that reflected lung retention times.
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Affiliation(s)
- Shadabul Haque
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Melbourne, VIC, Australia
| | - Colin W Pouton
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC, Australia
| | - Michelle P McIntosh
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC, Australia
| | - David B Ascher
- Bio21 Institute, University of Melbourne, Melbourne, VIC, Australia
| | - David W Keizer
- Bio21 Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Michael R Whittaker
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Melbourne, VIC, Australia.
| | - Lisa M Kaminskas
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC, Australia; School of Biomedical Sciences, University of Queensland, St Lucia, QLD, Australia.
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11
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Abrahim-Vieira BA, Souza AMTDE, Barros RC, Carmo FADO, Abreu LCLDE, Moreira RSS, HonÓrio TS, Rodrigues CR, Sousa VPDE, Cabral LM. In Silico studies of novel Sildenafil self-emulsifying drug delivery system absorption improvement for pulmonary arterial hypertension. AN ACAD BRAS CIENC 2020; 92:e20191445. [PMID: 32785428 DOI: 10.1590/0001-3765202020191445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/02/2020] [Indexed: 11/21/2022] Open
Abstract
Sildenafil is a potent selective inhibitor of phosphosdiesterase-5 previously used in erectile dysfunction and subsequently approved in 2005 for pulmonary arterial hypertension treatment. Since oral administration of sildenafil shows pharmacokinetic problems with mean absolute bioavailability of 41%, the goal of this work was to develop a novel sildenafil self-emulsifying drug delivery system (SEDDS) for oral absorption improvement and management of dosage. One pharmaceutical solution and four SEDDS containing sildenafil were successfully obtained and SEDDS formed O/W nanoemulsion with droplet size less than 300 nm. The stability studies evidenced that the SEDDS containing 3.3% w/w of sildenafil yielded the best results. The safety of 2-pyrrolidone/isobutanol in oral formulations was assessed in mice and no lethality was achieved in the placebo groups with LD50 of 490 mg/Kg for SEDDS II-3.3, suggesting it as a safe excipient for humans. Therewithal, in silico studies using PBPK models provided the pharmacokinetic profile of sildenafil SEDDS. Subsequently, in silico evaluation indicated that the sildenafil SEDDS droplet size influenced its bioavailability, enhancing absorption, assuring a good pharmacokinetic profile. These findings suggest that the formulations developed here presented the potential to enhance drug oral absorption with the possibility to control drug dosage as they are liquid pharmaceutical formulations.
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Affiliation(s)
- BarbÁra A Abrahim-Vieira
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Alessandra M T DE Souza
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Rita C Barros
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - FlÁvia A DO Carmo
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - LetÍcia C L DE Abreu
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Ronyson S S Moreira
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Thiago S HonÓrio
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Carlos R Rodrigues
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Valeria P DE Sousa
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
| | - Lucio M Cabral
- Departamento de Fármacos e Medicamentos, Universidade Federal do Rio de Janeiro, Cidade Universitária, RJ, Brazil
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12
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Bartucci R, Paramanandana A, Boersma YL, Olinga P, Salvati A. Comparative study of nanoparticle uptake and impact in murine lung, liver and kidney tissue slices. Nanotoxicology 2020; 14:847-865. [PMID: 32536243 DOI: 10.1080/17435390.2020.1771785] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
To determine responses to nanoparticles in a more comprehensive way, current efforts in nanosafety aim at combining the analysis of multiple endpoints and comparing outcomes in different models. To this end, here we used tissue slices from mice as 3D ex vivo models and performed for the first time a comparative study of uptake and impact in liver, lung, and kidney slices exposed under the same conditions to silica, carboxylated and amino-modified polystyrene. In all organs, only exposure to amino-modified polystyrene induced toxicity, with stronger effects in kidneys and lungs. Uptake and distribution studies by confocal microscopy confirmed nanoparticle uptake in all slices, and, in line with what observed in vivo, preferential accumulation in the macrophages. However, uptake levels in kidneys were minimal, despite the strong impact observed when exposed to the amino-modified polystyrene. On the contrary, nanoparticle uptake and accumulation in macrophages were particularly evident in lung slices. Thus, tissue digestion was used to recover all cells from lung slices at different exposure times and to determine by flow cytometry detailed uptake kinetics in lung macrophages and all other cells, confirming higher uptake by the macrophages. Finally, the expression levels of a panel of targets involved in inflammation and macrophage polarization were measured to determine potential effects induced in lung and liver tissue. Overall, this comparative study allowed us to determine uptake and impact of nanoparticles in real tissue and identify important differences in outcomes in the organs in which nanoparticles distribute.
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Affiliation(s)
- Roberta Bartucci
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands.,Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands.,Department of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Abhimata Paramanandana
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Ykelien L Boersma
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Peter Olinga
- Department of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Anna Salvati
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
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13
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Bartucci R, Åberg C, Melgert BN, Boersma YL, Olinga P, Salvati A. Time-Resolved Quantification of Nanoparticle Uptake, Distribution, and Impact in Precision-Cut Liver Slices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1906523. [PMID: 32077626 DOI: 10.1002/smll.201906523] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/25/2020] [Indexed: 06/10/2023]
Abstract
Much effort within the nanosafety field is currently focused on the use of advanced in vitro models to reduce the gap between in vitro and in vivo studies. Within this context, precision-cut tissue slices are a unique ex vivo model to investigate nanoparticle impact using live tissue from laboratory animals and even humans. However, several aspects of the basic mechanisms of nanoparticle interactions with tissue have not yet been elucidated. To this end, liver slices are exposed to carboxylated and amino-modified polystyrene known to have a different impact on cells. As observed in standard cell cultures, amino-modified polystyrene nanoparticles induce apoptosis, and their impact is affected by the corona forming on their surface in biological fluids. Subsequently, a detailed time-resolved study of nanoparticle uptake and distribution in the tissue is performed, combining fluorescence imaging and flow cytometry on cells recovered after tissue digestion. As observed in vivo, the Kupffer cells accumulate high nanoparticle amounts and, interestingly, they move within the tissue towards the slice borders. Similar observations are reproduced in liver slices from human tissue. Thus, tissue slices can be used to reproduce ex vivo important features of nanoparticle outcomes in the liver and study nanoparticle impact on real tissue.
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Affiliation(s)
- Roberta Bartucci
- Division of Pharmacokinetics, Toxicology and Targeting, Division of Chemical and Pharmaceutical Biology, Division of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Christoffer Åberg
- Division of Pharmaceutical Analysis, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Barbro N Melgert
- Division of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, GRIAC Research Institute, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Ykelien L Boersma
- Division of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Peter Olinga
- Division of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Anna Salvati
- Division of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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14
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Nanostructured lipid carriers versus solid lipid nanoparticles for the potential treatment of pulmonary hypertension via nebulization. Eur J Pharm Sci 2018; 125:151-162. [PMID: 30292750 DOI: 10.1016/j.ejps.2018.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 09/21/2018] [Accepted: 10/03/2018] [Indexed: 01/15/2023]
Abstract
With the non-selective vasodilating action, short half-life and first-pass metabolism of sildenafil (SC), local application in the lung for pulmonary arterial hypertension is of high demand. Although several nanosystems have been lately investigated, nanostructured lipid carriers (NLCs) give promises of potential safety, biodegradability and controlled drug release. In the current study, NLCs comprising either precirol, stearic acid or beeswax as solid lipid in presence of oleic acid as liquid lipid and PVA or poloxamer as emulsifier were prepared. Optimized NLCs (200-268 nm in size) were appraised versus SLNs both in vitro and in vivo. Precirol/PVA-based SLNs and NLCs ensued high entrapment efficiencies (EE > 95%) and controlled release behaviour over 6 h even though NLCs showed higher release profile. Stability studies at 4 °C indicated potential colloidal and entrapment stability over 3 months. Interestingly, NLCs demonstrated efficient nebulization, low interaction with mucin and higher viability of A549 cells (3-fold increase in IC50 relative to SLNs) providing good aptitudes for pulmonary application. In vivo administration of free SC in rats revealed localized intra-alveolar bleeding, presumably related to excessive vasodilatation. Meanwhile, the nanoencapsulated drug confirmed normal lung parenchyma with minimal incidence of bleeding. Inspiring results highlight the potential of sildenafil-laden nanostructured lipid carriers as pulmonary drug delivery system.
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15
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Haque S, Whittaker M, McIntosh MP, Pouton CW, Phipps S, Kaminskas LM. A comparison of the lung clearance kinetics of solid lipid nanoparticles and liposomes by following the 3H-labelled structural lipids after pulmonary delivery in rats. Eur J Pharm Biopharm 2018; 125:1-12. [PMID: 29309835 DOI: 10.1016/j.ejpb.2018.01.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/16/2017] [Accepted: 01/04/2018] [Indexed: 12/31/2022]
Abstract
The utility of biodegradable nanosized drug carriers for the local and controlled delivery of therapeutics to the lungs has prompted significant interest in the development of inhalable nanomedicines. Still, little is known about how these systems are cleared from the lungs, including the kinetics of the structural lipids. Most preclinical and clinical studies to date have evaluated the lung clearance of loaded drugs, which in many cases poorly reflects the kinetics of the nanocarrier, or the bulk-labelled particles. This study therefore aimed to describe and compare the pulmonary pharmacokinetic behaviour and patterns of lung clearance of two commonly explored inhalable nanocarriers (anionic ∼150 nm liposomes and solid lipid nanoparticles [SLNs]) in rats by following the 3H-labelled structural lipids (phosphatidylcholine and tristearin respectively). The data showed that SLNs and liposomes were cleared from the lungs at similar rates, despite SLNs being deposited after intratracheal instillation in the upper respiratory track, and primarily via the mucociliary escalator, but this process was more pronounced for SLNs. Structural lipids were mainly associated with plasma proteins rather than nanocarrier in plasma. The lipids also exhibit prolonged lung exposure and are associated with the lung tissue (rather than BALF) over 2 weeks.
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Affiliation(s)
- Shadabul Haque
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC 3052, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Melbourne, VIC 3052, Australia
| | - Michael Whittaker
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC 3052, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Melbourne, VIC 3052, Australia
| | - Michelle P McIntosh
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC 3052, Australia
| | - Colin W Pouton
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC 3052, Australia
| | - Simon Phipps
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Lisa M Kaminskas
- Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC 3052, Australia; School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia.
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16
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Temann A, Golovina T, Neuhaus V, Thompson C, Chichester JA, Braun A, Yusibov V. Evaluation of inflammatory and immune responses in long-term cultured human precision-cut lung slices. Hum Vaccin Immunother 2017; 13:351-358. [PMID: 27929748 DOI: 10.1080/21645515.2017.1264794] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The development of systems that are more accurate and time-efficient in predicting safety and efficacy of target products in humans are critically important in reducing the cost and duration of pharmaceutical development. To circumvent some of the limitations imposed by the use of animal models, ex vivo systems, such as precision-cut lung slices (PCLS), have been proposed as an alternative for evaluating safety, immunogenicity and efficacy of vaccines and pharmaceuticals. In this study, we have established a human PCLS system and methodology for PCLS cultivation that can provide long-term viability and functionality in culture. Using these techniques, we found that cultured PCLS remained viable for at least 14 d in culture and maintained normal metabolic activity, tissue homeostasis and structural integrity. To investigate whether cultured PCLS remained functional, lipopolysaccharide (LPS) was used as a target stimulating compound. We observed that after an 18-hour incubation with LPS, cultured PCLS produced a set of pro-inflammatory cytokines, including TNF-α, IL-1β, IL-6 and IL-10 as well as the enzyme COX-2. Furthermore, cultured PCLS were shown to be capable of generating re-call immune responses, characterized by cytokine production, against antigens commonly found in routine vaccinations against influenza virus and tetanus toxoid. Taken together, these results suggest that human PCLS have the potential to be used as an alternative, high-throughput, ex vivo system for evaluating the safety, and potentially immunogenicity, of vaccines and pharmaceuticals.
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Affiliation(s)
- Angela Temann
- a Fraunhofer USA Center for Molecular Biotechnology , Newark , DE , USA
| | - Tatiana Golovina
- a Fraunhofer USA Center for Molecular Biotechnology , Newark , DE , USA
| | - Vanessa Neuhaus
- b Fraunhofer Institute for Toxicology and Experimental Medicine , Hannover , Germany
| | - Carolann Thompson
- a Fraunhofer USA Center for Molecular Biotechnology , Newark , DE , USA
| | | | - Armin Braun
- b Fraunhofer Institute for Toxicology and Experimental Medicine , Hannover , Germany
| | - Vidadi Yusibov
- a Fraunhofer USA Center for Molecular Biotechnology , Newark , DE , USA
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17
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Varshosaz J, Taymouri S, Hamishehkar H, Vatankhah R, Yaghubi S. Development of dry powder inhaler containing tadalafil-loaded PLGA nanoparticles. Res Pharm Sci 2017. [PMID: 28626480 PMCID: PMC5465831 DOI: 10.4103/1735-5362.207203] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Inhalable dry powders containing poly lactic-co-glycolic acid (PLGA) nanoparticles (NPs) were developed for the delivery of tadalafil (TAD) for treatment of life-treating pulmonary arterial hypertension. Taguchi design was employed to evaluate the effects of different formulation variables on the physicochemical characteristics of PLGA-NPs prepared using emulsion solvent evaporation method. Inhalable PLGA-NPs of TAD were successfully prepared by co-spray drying the PLGA-NPs with inert carriers. Physicochemical characteristics and in vitro deposition of the aerosolized drug were also evaluated. The optimized formulation was prepared using 7.5 mg of PLGA, 2.5 mg of TAD, sonication time of 6 min and 2% polyvinyl alcohol (PVA) as the stabilizer. The optimized aqueous/oil phase ratio for PLGA-NPs preparation was 10:1. Polymer/drug ratio was the most effective parameter on the release efficiency. Encapsulation efficiency, zeta potential and particle size of PLGA-NPs were more affected by aqueous/organic phase ratio. The spray dried powders containing PLGA-NPs had a mass median aerodynamic diameter (MMAD) in the range of 1.4–2.8 μm that was suitable for TAD delivery to the deep region of lung. The presence of L- leucine in mannitol containing formulations decreased the interparticulate forces between particles and increased significantly the process yield and fine particle fraction (FPF). The results indicated that prepared dry powders containing TAD-loaded PLGA-NPs were suitable for inhalation and has the potential for the treatment of pulmonary arterial hypertension.
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Affiliation(s)
- Jaleh Varshosaz
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Centre, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Centre, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, I.R. Iran
| | - Razieh Vatankhah
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Centre, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Shadi Yaghubi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, I.R. Iran
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18
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Makled S, Nafee N, Boraie N. Nebulized solid lipid nanoparticles for the potential treatment of pulmonary hypertension via targeted delivery of phosphodiesterase-5-inhibitor. Int J Pharm 2016; 517:312-321. [PMID: 27979766 DOI: 10.1016/j.ijpharm.2016.12.026] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 12/10/2016] [Accepted: 12/10/2016] [Indexed: 12/20/2022]
Abstract
Phosphodiesterase type 5 (PDE-5) inhibitors - among which sildenafil citrate (SC) - play a primary role in the treatment of pulmonary hypertension (PH). Yet, SC can be only administered orally or parenterally with lot of risks. Targeted delivery of SC to the lungs via inhalation/nebulization is mandatory. In this study, solid lipid nanoparticles (SLNs) loaded with SC were prepared and characterized in terms of colloidal, morphological and thermal properties. The amount of drug loaded and its release behavior were estimated as a function of formulation variables. The potential of lipid nanocarriers to retain their properties following nebulization and autoclaving was investigated. In addition, toxicity aspects of plain and loaded SLNs on A549 cells were studied with respect to concentration. Spherical SLNs in the size range (100-250nm) were obtained. Particles ensured high encapsulation efficiency (88-100%) and sustained release of the payload over 24h. Cell-based viability experiments revealed a concentration-dependant toxicity for both plain and loaded SLNs recording an IC50 of 516 and 384μg/mL, respectively. Nebulization with jet nebulizer and sterilization via autoclaving affected neither the colloidal stability of SLNs nor the drug entrapment, proving their potential as pulmonary delivery system. Interaction of SLNs with mucin was a function of the emulsifier coating layer. Results yet seeking clinical evidence - might give promises of new therapy for PH of higher safety, better performance and higher patient compliance.
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Affiliation(s)
- Shaimaa Makled
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Noha Nafee
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt.
| | - Nabila Boraie
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
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19
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Alvarado A, Arce I. Metabolic Functions of the Lung, Disorders and Associated Pathologies. J Clin Med Res 2016; 8:689-700. [PMID: 27635172 PMCID: PMC5012236 DOI: 10.14740/jocmr2668w] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2016] [Indexed: 01/04/2023] Open
Abstract
The primary function of the lungs is gas exchange. Approximately 400 million years ago, the Earth's atmosphere gained enough oxygen in the gas phase for the animals that emerged from the sea to breathe air. The first lungs were merely primitive air sacs with a few vessels in the walls that served as accessory organs of gas exchange to supplement the gills. Eons later, as animals grew accustomed to a solely terrestrial life, the lungs became highly compartmentalized to provide the vast air-blood surface necessary for O2 uptake and CO2 elimination, and a respiratory control system was developed to regulate breathing in accordance with metabolic demands and other needs. With the evolution and phylogenetic development, lungs were taking a variety of other specialized functions to maintain homeostasis, which we will call the non-respiratory functions of the lung and that often, and by mistake, are believed to have little or no connection with the replacement gas. In this review, we focus on the metabolic functions of the lung, perhaps the least known, and mainly, in the lipid metabolism and blood-adult lung vascular endothelium interaction. When these functions are altered, respiratory disorders or diseases appear, which are discussed concisely, emphasizing how they impact the most important function of the lungs: external respiration.
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Affiliation(s)
- Alcibey Alvarado
- Internal Medicine and Neumology, Clinica de Diagnostico Medico, San Jose, Costa Rica
| | - Isabel Arce
- Medicine and General Surgery, Medicine School, University of Costa Rica, San Jose, Costa Rica
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20
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Preclinical safety of solid lipid nanoparticles and nanostructured lipid carriers: Current evidence from in vitro and in vivo evaluation. Eur J Pharm Biopharm 2016; 108:235-252. [PMID: 27519829 DOI: 10.1016/j.ejpb.2016.08.001] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 07/16/2016] [Accepted: 08/01/2016] [Indexed: 01/08/2023]
Abstract
Solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) were designed as exceptionally safe colloidal carriers for the delivery of poorly soluble drugs. SLN/NLC have the particularity of being composed of excipientsalready approved for use in medicines for human use, which offers a great advantage over any other nanoparticulate system developed from novel materials. Despite this fact, any use of excipients in new route of administration or in new dosage form requires evidence of safety. After 25 years of research on SLN and NLC, enough evidence on their preclinical safety has been published. In the present work, published data on in vitro and in vivo compatibility of SLN/NLC have been surveyed, in order to provide evidence of high biocompatibility distinguished by intended administration route. We also identified critical factors and possible weak points in SLN/NLC formulations, such as the effect of surfactants on the cell viability in vitro, which should be considered for further development.
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21
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Haque S, Whittaker MR, McIntosh MP, Pouton CW, Kaminskas LM. Disposition and safety of inhaled biodegradable nanomedicines: Opportunities and challenges. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1703-24. [PMID: 27033834 DOI: 10.1016/j.nano.2016.03.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/22/2016] [Accepted: 03/02/2016] [Indexed: 10/22/2022]
Abstract
The inhaled delivery of nanomedicines can provide a novel, non-invasive therapeutic strategy for the more localised treatment of lung-resident diseases and potentially also enable the systemic delivery of therapeutics that are otherwise administered via injection alone. However, the clinical translation of inhalable nanomedicine is being hampered by our lack of understanding about their disposition and clearance from the lungs. This review provides a comprehensive overview of the biodegradable nanomaterials that are currently being explored as inhalable drug delivery systems and our current understanding of their disposition within, and clearance from the lungs. The safety of biodegradable nanomaterials in the lungs is discussed and latest updates are provided on the impact of inflammation on the pulmonary pharmacokinetics of inhaled nanomaterials. Overall, the review provides an in-depth and critical assessment of the lung clearance mechanisms for inhaled biodegradable nanomedicines and highlights the opportunities and challenges for their translation into the clinic.
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Affiliation(s)
- Shadabul Haque
- Drug Delivery Disposition and Dynamics Group, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Michael R Whittaker
- Drug Delivery Disposition and Dynamics Group, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Michelle P McIntosh
- Drug Delivery Disposition and Dynamics Group, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Colin W Pouton
- Drug Delivery Disposition and Dynamics Group, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Lisa M Kaminskas
- Drug Delivery Disposition and Dynamics Group, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia.
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22
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Yan L, Feng M, Liu J, Wang L, Wang Z. Antioxidant defenses and histological changes in Carassius auratus after combined exposure to zinc and three multi-walled carbon nanotubes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 125:61-71. [PMID: 26655435 DOI: 10.1016/j.ecoenv.2015.11.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/24/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
With the increasing applications of carbon nanotubes (CNTs) worldwide, considerable concerns have been raised regarding their inevitable releases into natural waters and ecotoxicity. It was supposed that CNTs may interact with some existing pollutants like zinc in aquatic systems and exhibit different effects when compared with their single treatments. However, data on their possible combined toxicity on aquatic species are still lacking. Moreover, the interactions of Zn with different functionalized CNTs may be distinct and thereby lead to diverse results. It is like that functional groups play a vital role in illustrating the differences in toxicity among various CNTs. In this study, the single and joint effects of multi-walled carbon nanotubes (MWCNTs) and two MWCNTs functionalized with carboxylation (COOH-MWCNTs) or hydroxylation (OH-MWCNTs) in the absence or presence of zinc (Zn) on antioxidant status and histopathological changes in Carassius auratus were evaluated. Synergistic effect was tentatively proposed for joint-toxicity action, which was supported by apparently observed oxidative stress and histopathological changes in joint exposure groups. The integrated biomarker response index was calculated to rank the toxicity order, from which the conclusion of synergistic effect was strengthened. Regarding differences among various CNTs, our data showed that OH-MWCNTs and COOH-MWCNTs were more stressful to fish than raw MWCNTs. This finding sustained that functionalization is an important factor in nanotoxicity, which may serve as clues for future design and application of CNTs. Overall, these results provided some valuable toxicological data on the joint effects of CNTs and heavy metals on aquatic species, which can facilitate further understanding on the potential impacts of other coexisting pollutants in the culture of freshwater fish.
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Affiliation(s)
- Liqing Yan
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Mingbao Feng
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Jiaoqin Liu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Liansheng Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
| | - Zunyao Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China.
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23
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McKenzie Z, Kendall M, Mackay RM, Tetley TD, Morgan C, Griffiths M, Clark HW, Madsen J. Nanoparticles modulate surfactant protein A and D mediated protection against influenza A infection in vitro. Philos Trans R Soc Lond B Biol Sci 2015; 370:20140049. [PMID: 25533100 PMCID: PMC4275912 DOI: 10.1098/rstb.2014.0049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Numerous epidemiological and toxicological studies have indicated that respiratory infections are exacerbated following enhanced exposure to airborne particulates. Surfactant protein A (SP-A) and SP-D form an important part of the innate immune response in the lung and can interact with nanoparticles to modulate the cellular uptake of these particles. We hypothesize that this interaction will also affect the ability of these proteins to combat infections. TT1, A549 and differentiated THP-1 cells, representing the predominant cell types found in the alveolus namely alveolar type I (ATI) epithelial cells, ATII cells and macrophages, were used to examine the effect of two model nanoparticles, 100 nm amine modified (A-PS) and unmodified polystyrene (U-PS), on the ability of SP-A and SP-D to neutralize influenza A infections in vitro. Pre-incubation of low concentrations of U-PS with SP-A resulted in a reduction of SP-A anti-influenza activity in A549 cells, whereas at higher concentrations there was an increase in SP-A antiviral activity. This differential pattern of U-PS concentration on surfactant protein mediated protection against IAV was also shown with SP-D in TT1 cells. On the other hand, low concentrations of A-PS particles resulted in a reduction of SP-A activity in TT1 cells and a reduction in SP-D activity in A549 cells. These results indicate that nanoparticles can modulate the ability of SP-A and SP-D to combat viral challenges. Furthermore, the nanoparticle concentration, surface chemistry and cell type under investigation are important factors in determining the extent of these modulations.
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Affiliation(s)
- Zofi McKenzie
- Child Health, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Michaela Kendall
- Child Health, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, UK
| | - Rose-Marie Mackay
- Child Health, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Teresa D Tetley
- National Heart and Lung Institute, Imperial College London, London SW3 6LY, UK
| | - Cliff Morgan
- Leukocyte Biology, Imperial College London, Royal Brompton Campus, London SW3 6NP, UK
| | - Mark Griffiths
- Leukocyte Biology, Imperial College London, Royal Brompton Campus, London SW3 6NP, UK
| | - Howard W Clark
- Child Health, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, UK National Institute for Health Research, Southampton Respiratory Biomedical Research Unit, Southampton Centre for Biomedical Research, University Hospital Southampton NHS Foundation Trust, Southampton SO16 6YD, UK
| | - Jens Madsen
- Child Health, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, UK National Institute for Health Research, Southampton Respiratory Biomedical Research Unit, Southampton Centre for Biomedical Research, University Hospital Southampton NHS Foundation Trust, Southampton SO16 6YD, UK
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24
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Vaidya B, Gupta V. Novel therapeutic approaches for pulmonary arterial hypertension: Unique molecular targets to site-specific drug delivery. J Control Release 2015; 211:118-33. [PMID: 26036906 DOI: 10.1016/j.jconrel.2015.05.287] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/26/2015] [Accepted: 05/28/2015] [Indexed: 01/07/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a cardiopulmonary disorder characterized by increased blood pressure in the small arterioles supplying blood to lungs for oxygenation. Advances in understanding of molecular and cellular biology techniques have led to the findings that PAH is indeed a cascade of diseases exploiting multi-faceted complex pathophysiology, with cellular proliferation and vascular remodeling being the key pathogenic events along with several cellular pathways involved. While current therapies for PAH do provide for amelioration of disease symptoms and acute survival benefits, their full therapeutic potential is hindered by patient incompliance and off-target side effects. To overcome the issues related with current therapy and to devise a more selective therapy, various novel pathways are being investigated for PAH treatment. In addition, inability to deliver anti-PAH drugs to the disease site i.e., distal pulmonary arterioles has been one of the major challenges in achieving improved patient outcomes and improved therapeutic efficacy. Several novel carriers have been explored to increase the selectivity of currently approved anti-PAH drugs and to act as suitable carriers for the delivery of investigational drugs. In the present review, we have discussed potential of various novel molecular pathways/targets including RhoA/Rho kinase, tyrosine kinase, endothelial progenitor cells, vasoactive intestinal peptide, and miRNA in PAH therapeutics. We have also discussed various techniques for site-specific drug delivery of anti-PAH therapeutics so as to improve the efficacy of approved and investigational drugs. This review will provide gainful insights into current advances in PAH therapeutics with an emphasis on site-specific drug payload delivery.
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Affiliation(s)
- Bhuvaneshwar Vaidya
- School of Pharmacy, Keck Graduate Institute, 535 Watson Drive, Claremont, CA 91711, United States
| | - Vivek Gupta
- School of Pharmacy, Keck Graduate Institute, 535 Watson Drive, Claremont, CA 91711, United States.
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25
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FANIZZA C, CASCIARDI S, INCORONATO F, CAVALLO D, URSINI C, CIERVO A, MAIELLO R, FRESEGNA A, MARCELLONI A, LEGA D, ALVINO A, BAIGUERA S. Human epithelial cells exposed to functionalized multiwalled carbon nanotubes: interactions and cell surface modifications. J Microsc 2015; 259:173-84. [DOI: 10.1111/jmi.12251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 03/01/2015] [Indexed: 12/28/2022]
Affiliation(s)
| | | | | | - D. CAVALLO
- INAIL; DMEILA; Monteporzio Catone Rome Italy
| | - C.L. URSINI
- INAIL; DMEILA; Monteporzio Catone Rome Italy
| | - A. CIERVO
- INAIL; DMEILA; Monteporzio Catone Rome Italy
| | - R. MAIELLO
- INAIL; DMEILA; Monteporzio Catone Rome Italy
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26
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van Rijt SH, Bölükbas DA, Argyo C, Datz S, Lindner M, Eickelberg O, Königshoff M, Bein T, Meiners S. Protease-mediated release of chemotherapeutics from mesoporous silica nanoparticles to ex vivo human and mouse lung tumors. ACS NANO 2015; 9:2377-2389. [PMID: 25703655 DOI: 10.1021/nn5070343] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanoparticles allow for controlled and targeted drug delivery to diseased tissues and therefore bypass systemic side effects. Spatiotemporal control of drug release can be achieved by nanocarriers that respond to elevated levels of disease-specific enzymes. For example, matrix metalloproteinase 9 (MMP9) is overexpressed in tumors, is known to enhance the metastatic potency of malignant cells, and has been associated with poor prognosis of lung cancer. Here, we report the synthesis of mesoporous silica nanoparticles (MSNs) tightly capped by avidin molecules via MMP9 sequence-specific linkers to allow for site-selective drug delivery in high-expressing MMP9 tumor areas. We provide proof-of-concept evidence for successful MMP9-triggered drug release from MSNs in human tumor cells and in mouse and human lung tumors using the novel technology of ex vivo 3D lung tissue cultures. This technique allows for translational testing of drug delivery strategies in diseased mouse and human tissue. Using this method we show MMP9-mediated release of cisplatin, which induced apoptotic cell death only in lung tumor regions of Kras mutant mice, without causing toxicity in tumor-free areas or in healthy mice. The MMP9-responsive nanoparticles also allowed for effective combinatorial drug delivery of cisplatin and proteasome inhibitor bortezomib, which had a synergistic effect on the (therapeutic) efficiency. Importantly, we demonstrate the feasibility of MMP9-controlled drug release in human lung tumors.
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Affiliation(s)
| | | | - Christian Argyo
- ‡Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13(E), 81377 Munich, Germany
| | - Stefan Datz
- ‡Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13(E), 81377 Munich, Germany
| | | | | | | | - Thomas Bein
- ‡Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13(E), 81377 Munich, Germany
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27
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Hirn S, Haberl N, Loza K, Epple M, Kreyling WG, Rothen-Rutishauser B, Rehberg M, Krombach F. Proinflammatory and cytotoxic response to nanoparticles in precision-cut lung slices. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:2440-2449. [PMID: 25671139 PMCID: PMC4311658 DOI: 10.3762/bjnano.5.253] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 11/25/2014] [Indexed: 05/30/2023]
Abstract
Precision-cut lung slices (PCLS) are an established ex vivo alternative to in vivo experiments in pharmacotoxicology. The aim of this study was to evaluate the potential of PCLS as a tool in nanotoxicology studies. Silver (Ag-NPs) and zinc oxide (ZnO-NPs) nanoparticles as well as quartz particles were used because these materials have been previously shown in several in vitro and in vivo studies to induce a dose-dependent cytotoxic and inflammatory response. PCLS were exposed to three concentrations of 70 nm monodisperse polyvinylpyrrolidone (PVP)-coated Ag-NPs under submerged culture conditions in vitro. ZnO-NPs (NM110) served as 'soluble' and quartz particles (Min-U-Sil) as 'non-soluble' control particles. After 4 and 24 h, the cell viability and the release of proinflammatory cytokines was measured. In addition, multiphoton microscopy was employed to assess the localization of Ag-NPs in PCLS after 24 h of incubation. Exposure of PCLS to ZnO-NPs for 4 and 24 h resulted in a strong decrease in cell viability, while quartz particles had no cytotoxic effect. Moreover, only a slight cytotoxic response was detected by LDH release after incubation of PCLS with 20 or 30 µg/mL of Ag-NPs. Interestingly, none of the particles tested induced a proinflammatory response in PCLS. Finally, multiphoton microscopy revealed that the Ag-NP were predominantly localized at the cut surface and only to a much lower extent in the deeper layers of the PCLS. In summary, only 'soluble' ZnO-NPs elicited a strong cytotoxic response. Therefore, we suggest that the cytotoxic response in PCLS was caused by released Zn(2+) ions rather than by the ZnO-NPs themselves. Moreover, Ag-NPs were predominantly localized at the cut surface of PCLS but not in deeper regions, indicating that the majority of the particles did not have the chance to interact with all cells present in the tissue slice. In conclusion, our findings suggest that PCLS may have some limitations when used for nanotoxicology studies. To strengthen this conclusion, however, other NP types and concentrations need to be tested in further studies.
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Affiliation(s)
- Stephanie Hirn
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377 Munich, Germany
| | - Nadine Haberl
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377 Munich, Germany
| | - Kateryna Loza
- Inorganic Chemistry and Center of Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitätsstr. 5-7, 45117 Essen, Germany
| | - Matthias Epple
- Inorganic Chemistry and Center of Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitätsstr. 5-7, 45117 Essen, Germany
| | - Wolfgang G Kreyling
- Institute of Epidemiology 2, Helmholtz Center Munich, Ingolstädter Landstr. 1, 85764 Neuherberg/Munich, Germany
| | - Barbara Rothen-Rutishauser
- Adolphe Merkle Institute, Université de Fribourg, Route de l'ancienne Papeterie CP 209, 1723 Marly, Switzerland
| | - Markus Rehberg
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377 Munich, Germany
| | - Fritz Krombach
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377 Munich, Germany
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28
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Paranjpe M, Finke J, Richter C, Gothsch T, Kwade A, Büttgenbach S, Müller-Goymann C. Physicochemical characterization of sildenafil-loaded solid lipid nanoparticle dispersions (SLN) for pulmonary application. Int J Pharm 2014; 476:41-9. [DOI: 10.1016/j.ijpharm.2014.09.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/16/2014] [Accepted: 09/23/2014] [Indexed: 11/16/2022]
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29
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Paranjpe M, Neuhaus V, Braun A, Mueller‐Goymann CC. Toxicity testing of sildenafil base‐loaded liposomes in in vitro and ex vivo models for pulmonary application. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mukta Paranjpe
- Institut für Pharmazeutische TechnologieTU BraunschweigGermany
| | - Vanessa Neuhaus
- Fraunhofer Institut für Toxikologie und Experimentelle MedizinHannoverGermany
| | - Armin Braun
- Fraunhofer Institut für Toxikologie und Experimentelle MedizinHannoverGermany
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30
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Affiliation(s)
- Nathalie Wauthoz
- Laboratory of Pharmaceutics and Biopharmaceutics, Faculty of Pharmacy; Université Libre de Bruxelles (ULB); Brussels Belgium
| | - Karim Amighi
- Laboratory of Pharmaceutics and Biopharmaceutics, Faculty of Pharmacy; Université Libre de Bruxelles (ULB); Brussels Belgium
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31
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Nanoparticle-mediated pulmonary drug delivery: a review. Int J Mol Sci 2014; 15:5852-73. [PMID: 24717409 PMCID: PMC4013600 DOI: 10.3390/ijms15045852] [Citation(s) in RCA: 238] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 11/17/2022] Open
Abstract
Colloidal drug delivery systems have been extensively investigated as drug carriers for the application of different drugs via different routes of administration. Systems, such as solid lipid nanoparticles, polymeric nanoparticles and liposomes, have been investigated for a long time for the treatment of various lung diseases. The pulmonary route, owing to a noninvasive method of drug administration, for both local and systemic delivery of an active pharmaceutical ingredient (API) forms an ideal environment for APIs acting on pulmonary diseases and disorders. Additionally, this route offers many advantages, such as a high surface area with rapid absorption due to high vascularization and circumvention of the first pass effect. Aerosolization or inhalation of colloidal systems is currently being extensively studied and has huge potential for targeted drug delivery in the treatment of various diseases. Furthermore, the surfactant-associated proteins present at the interface enhance the effect of these formulations by decreasing the surface tension and allowing the maximum effect. The most challenging part of developing a colloidal system for nebulization is to maintain the critical physicochemical parameters for successful inhalation. The following review focuses on the current status of different colloidal systems available for the treatment of various lung disorders along with their characterization. Additionally, different in vitro, ex vivo and in vivo cell models developed for the testing of these systems with studies involving cell culture analysis are also discussed.
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32
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Vanić Ž, Škalko-Basnet N. Mucosal nanosystems for improved topical drug delivery: vaginal route of administration. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50085-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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