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Chaplin A, Gao H, Asase C, Rengasamy P, Park B, Skander D, Bebek G, Rajagopalan S, Maiseyeu A. Systemically-delivered biodegradable PLGA alters gut microbiota and induces transcriptomic reprogramming in the liver in an obesity mouse model. Sci Rep 2020; 10:13786. [PMID: 32796856 PMCID: PMC7429827 DOI: 10.1038/s41598-020-69745-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023] Open
Abstract
Biodegradable materials, including the widely used poly (lactic-co-glycolic acid) (PLGA) nanoparticles contained in slow-release drug formulations, scaffolds and implants, are ubiquitous in modern biomedicine and are considered inert or capable of being metabolized through intermediates such as lactate. However, in the presence of metabolic stress, such as in obesity, the resulting degradation products may play a detrimental role, which is still not well understood. We evaluated the effect of intravenously-administered PLGA nanoparticles on the gut-liver axis under conditions of caloric excess in C57BL/6 mice. Our results show that PLGA nanoparticles accumulate and cause gut acidification in the cecum, accompanied by significant changes in the microbiome, with a marked decrease of Firmicutes and Bacteroidetes. This was associated with transcriptomic reprogramming in the liver, with a downregulation of mitochondrial function, and an increase in key enzymatic, inflammation and cell activation pathways. No changes were observed in systemic inflammation. Metagenome analysis coupled with publicly available microarray data suggested a mechanism of impaired PLGA degradation and intestinal acidification confirming an important enterohepatic axis of metabolite-microbiome interaction resulting in maintenance of metabolic homeostasis. Thus, our results have important implications for the investigation of PLGA use in metabolically-compromised clinical and experimental settings.
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Affiliation(s)
- Alice Chaplin
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Huiyun Gao
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Courteney Asase
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Palanivel Rengasamy
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Bongsoo Park
- Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Danielle Skander
- Department of Nutrition, Department of Electrical Engineering and Computer Science, Center for Proteomics and Bioinformatics, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Gürkan Bebek
- Department of Nutrition, Department of Electrical Engineering and Computer Science, Center for Proteomics and Bioinformatics, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Sanjay Rajagopalan
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA
| | - Andrei Maiseyeu
- School of Medicine, Cardiovascular Research Institute, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
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Kuplennik N, Lang K, Steinfeld R, Sosnik A. Folate Receptor α-Modified Nanoparticles for Targeting of the Central Nervous System. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39633-39647. [PMID: 31532618 DOI: 10.1021/acsami.9b14659] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Effective and timely delivery of therapeutic agents from the systemic circulation to the central nervous system (CNS) is often precluded by the blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB). A new pathway of folate uptake mediated by folate receptor alpha (FRα, molecular weight of 28.29 kg mol-1) occurring in various epithelial cells of the CNS (e.g., choroid plexus) was described. Aiming to investigate this mechanism for the delivery of nanomedicines to the CNS, in this work, we initially produced nanoparticles (NPs) made of a highly hydrophobic poly(ethylene glycol)-b-poly(ε-caprolactone) (PEG-b-PCL) block copolymer functionalized with an amine moiety in the edge of the PEG block by a simple nanoprecipitation method. Hydrophilic PEG blocks migrated to the NP surface during formation, exposing primary amine groups that were used to conjugate the targeting ligand, FRα. The size of the NPs was in the 58-98 nm range and standard deviation (S.D., a measure of the size population peak width) of 26-41 nm, as measured by dynamic light scattering (DLS). The FRα conjugation yield ranged between 50% and 75% (determined indirectly by the bicinchoninic acid protein assay). Pristine and FRα-modified NPs showed good compatibility with primary human choroid plexus epithelial cells (HCPEpiCs). The uptake of FRα-conjugated NPs by HCPEpiCs was qualitatively evaluated in vitro using inverted optical fluorescence and confocal microscopy. FRα-modified NPs were internalized by HCPEpiCs to a greater extent than the unmodified counterparts. Then, their permeability was characterized in standard and inverted HCPEpiC monolayers. In both cases, NPs surface modified with the FRα and complexed to folic acid (FA) showed significantly higher apparent permeability coefficient (Papp) values than the pristine ones. Finally, the biodistribution of unmodified and FRα-FA-modified NPs following intravenous (i.v.) administration was compared in ICR mice. Results indicated that conjugation of the FRα-FA complex to the NP surface promotes higher accumulation in the brain, highlighting the promise of FRα-FA-modified NPs to serve as a platform for the targeting of active molecules to the CNS from the systemic circulation.
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Affiliation(s)
- Nataliya Kuplennik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering , Technion-Israel Institute of Technology , 3200003 Haifa , Israel
| | - Kristina Lang
- Clinic for Neurology , University Children Hospital Zurich , 8032 Zurich , Switzerland
| | - Robert Steinfeld
- Clinic for Neurology , University Children Hospital Zurich , 8032 Zurich , Switzerland
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering , Technion-Israel Institute of Technology , 3200003 Haifa , Israel
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Liu X, Zhang B, Sohal IS, Bello D, Chen H. Is "nano safe to eat or not"? A review of the state-of-the art in soft engineered nanoparticle (sENP) formulation and delivery in foods. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 88:299-335. [PMID: 31151727 DOI: 10.1016/bs.afnr.2019.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
With superior physicochemical properties, soft engineered nanoparticles (sENP) (protein, carbohydrate, lipids and other biomaterials) are widely used in foods. The preparation, functionalities, applications, transformations in gastrointestinal (GI) tract, and effects on gut microbiota of sENP directly incorporated for ingestion are reviewed herein. At the time of this review, there is no notable report of safety concerns of these nanomaterials found in the literature. Meanwhile, various beneficial effects have been demonstrated for the application of sENP. To address public perception and safety concerns of nanoscale materials in food, methodologies for evaluation of physiological effects of nanomaterials are reviewed. The combination of these complementary methods will be useful for the establishment of a comprehensive risk assessment system.
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Affiliation(s)
- Xiaobo Liu
- Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, MA, United States
| | - Boce Zhang
- Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, MA, United States.
| | - Ikjot Singh Sohal
- Purdue University, Center for Cancer Research, West Lafayette, IN, United States
| | - Dhimiter Bello
- Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, MA, United States.
| | - Hongda Chen
- U.S. Department of Agriculture, National Institute of Food and Agriculture, Washington DC, United States.
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Swider E, Maharjan S, Houkes K, van Riessen NK, Figdor C, Srinivas M, Tagit O. Förster Resonance Energy Transfer-Based Stability Assessment of PLGA Nanoparticles in Vitro and in Vivo. ACS APPLIED BIO MATERIALS 2019; 2:1131-1140. [PMID: 30906926 PMCID: PMC6428147 DOI: 10.1021/acsabm.8b00754] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/05/2019] [Indexed: 02/06/2023]
Abstract
The knowledge of in vitro and in vivo stability of polymeric nanoparticles is vital for the development of clinical formulations for drug delivery and cell labeling applications. Förster resonance energy transfer (FRET)-based fluorescence labeling approaches are promising tools to study nanoparticle stability under different physiological conditions. Here, we present the FRET-based stability assessment of poly(lactic-co-glycolic acid) (PLGA) nanoparticles encapsulating BODIPY-FL12 and Nile Red as the donor and acceptor, respectively. The stability of PLGA nanoparticles is studied via monitoring the variations of fluorescence emission characteristics along with colloidal characterization. Accordingly, PLGA nanoparticles are colloidally stable for more than 2 weeks when incubated in aqueous buffers in situ, whereas in vitro particle degradation starts in between 24 and 48 h, reaching a complete loss of FRET at 72 h as shown with fluorescence microscopy imaging and flow cytometry analysis. PLGA nanoparticles systemically administered to mice predominantly accumulate in the liver, in which FRET no longer takes place at time points as early as 24 h postadministration as determined by ex vivo organ imaging and flow cytometry analysis. The results of this study expand our knowledge on drug release and degradation behavior of PLGA nanoparticles under different physiological conditions, which will prove useful for the rational design of PLGA-based formulations for various applications that can be translated into clinical practice.
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Affiliation(s)
- Edyta Swider
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
| | - Sanish Maharjan
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
| | - Karlijne Houkes
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
| | - Nicolaas Koen van Riessen
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
| | - Carl Figdor
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
- Oncode
Institute, Utrecht, AL 3521, The Netherlands
| | - Mangala Srinivas
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
| | - Oya Tagit
- Department
of Tumor Immunology, Radboud Institute for
Molecular Life Sciences, Nijmegen, HB 6500, The Netherlands
- Oncode
Institute, Utrecht, AL 3521, The Netherlands
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Navarro SM, Morgan TW, Astete CE, Stout RW, Coulon D, Mottram P, Sabliov CM. Biodistribution and toxicity of orally administered poly (lactic-co-glycolic) acid nanoparticles to F344 rats for 21 days. Nanomedicine (Lond) 2016; 11:1653-69. [DOI: 10.2217/nnm-2016-0022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Aim: Quantify the biodistribution and assess the toxicity of PLGA (poly-lactic-co-glycolic acid) and surface-modified PLGA chitosan (PLGA/Chi) nanoparticles (NPs) orally administered for 7, 14 and 21 days to F344 rats. Materials & methods: Fluorescent NPs were tracked in F344 rat tissues, and toxicity was evaluated by alkaline phosphatase and alanine transaminase levels, and by histologic examination of tissue samples. Results: Biodistribution of PLGA and PLGA/Chi were similar, with highest amounts found in the intestine and liver. Alkaline phosphatase increased significantly in treated rats. Mild histological differences were detected in the intestine and liver. Conclusion: PLGA and PLGA/Chi NPs behaved similarly presenting minimal toxicity in the liver and intestine, but not in kidney, lung and brain.
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Affiliation(s)
- Sara M Navarro
- 149 EB Doran Bldg., Biological & Agricultural Engineering Department, LSU & LSU AgCenter, Baton Rouge, LA 70803, USA
| | - Timothy W Morgan
- A1218 Pathobiology & Population Medicine, College of Veterinary Medicine, PO Box 6100, Mississippi State, MS 39762-6100, USA
| | - Carlos E Astete
- 149 EB Doran Bldg., Biological & Agricultural Engineering Department, LSU & LSU AgCenter, Baton Rouge, LA 70803, USA
| | - Rhett W Stout
- 1527 Division of Laboratory Animal Medicine, Pathobiological Sciences, School of Veterinary Medicine, LSU, Baton Rouge, LA 70803, USA
| | - Diana Coulon
- 149 EB Doran Bldg., Biological & Agricultural Engineering Department, LSU & LSU AgCenter, Baton Rouge, LA 70803, USA
| | - Peter Mottram
- 1527 Division of Laboratory Animal Medicine, Pathobiological Sciences, School of Veterinary Medicine, LSU, Baton Rouge, LA 70803, USA
| | - Cristina M Sabliov
- 149 EB Doran Bldg., Biological & Agricultural Engineering Department, LSU & LSU AgCenter, Baton Rouge, LA 70803, USA
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Biodistribution of PLGA and PLGA/chitosan nanoparticles after repeat-dose oral delivery in F344 rats for 7 days. Ther Deliv 2015; 5:1191-201. [PMID: 25491670 DOI: 10.4155/tde.14.79] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AIM To quantify in vivo the biodistribution of poly(lactic-co-glycolic) acid (PLGA) and PLGA/chitosan nanoparticles (PLGA/Chi NPs) and assess if the positive charge of chitosan significantly enhances nanoparticle absorption in the GI tract. MATERIAL & METHODS PLGA and PLGA/Chi NPs covalently linked to tetramethylrhodamine-5-isothiocyanate (TRITC) were orally administered to F344 rats for 7 days, and the biodistribution of fluorescent NPs was analyzed in different organs. RESULTS The highest amount of particles (% total dose/g) was detected for both treatments in the spleen, followed by intestine and kidney, and then by liver, lung, heart and brain, with no significant difference between PLGA and PLGA/Chi NPs. CONCLUSION Only a small percentage of orally delivered NPs was detected in the analyzed organs. The positive charge conferred by chitosan was not sufficient to improve the absorption of the PLGA/Chi NPs over that of PLGA NPs.
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Formulation and Evaluation of Enteric Coated Nanoparticulate System for Poorly Absorbable Drug. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50007-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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