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Cherel B, Humbert M, LeBlanc FR, Zambello R, Hamidou M, Lifermann F, Montani D, Leoncin M, Decaux O, Pastoret C, Le Bourgeois A, Dominique S, Chabanne C, Loughran TP, Lamy T. Large Granular Lymphocyte Leukemia and Precapillary Pulmonary Hypertension. Chest 2020; 158:2602-2609. [PMID: 32919988 DOI: 10.1016/j.chest.2020.07.094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/30/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022] Open
Affiliation(s)
- Brieuc Cherel
- Department of Hematology, Pontchaillou University Hospital, Rennes, France
| | - Marc Humbert
- Paris-Sud University, Faculty of Medicine, Paris-Saclay University, Le Kremlin-Bicêtre, Paris, France; Department of Pulmonary Medicine, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, Paris, France; INSERM UMR_S 999, Hôpital Marie Lannelongue, Paris, France
| | | | - Renato Zambello
- Department of Medicine, Hematology and Clinical Immunology, Padua School of Medicine, Padua, Italy
| | - Mohamed Hamidou
- Department of Internal Medicine, Hôtel-Dieu University Hospital, Nantes, France
| | | | - David Montani
- Department of Pulmonary Medicine, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, Paris, France
| | - Matteo Leoncin
- Department of Medicine, Hematology and Clinical Immunology, Padua School of Medicine, Padua, Italy
| | - Olivier Decaux
- Department of Hematology, Pontchaillou University Hospital, Rennes, France; Department of Internal Medicine, Hôpital Sud University Hospital, Rennes, France
| | - Cedric Pastoret
- Laboratory of Hematology, Pontchaillou University Hospital, Rennes, France
| | | | - Stéphane Dominique
- Department of Pulmonary Medicine, Charles-Nicolle University Hospital, Rouen, France
| | - Céline Chabanne
- Department of Cardiology and Vascular Diseases, Pontchaillou University Hospital, Rennes, France
| | | | - Thierry Lamy
- Department of Hematology, Pontchaillou University Hospital, Rennes, France; Clinical Investigation Center CIC14-14, Pontchaillou University Hospital, Rennes, France.
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Sardana M, Moll M, Farber HW. Novel investigational therapies for treating pulmonary arterial hypertension. Expert Opin Investig Drugs 2015; 24:1571-96. [DOI: 10.1517/13543784.2015.1098616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Chen AZ, Wang GY, Wang SB, Li L, Liu YG, Zhao C. Formation of methotrexate-PLLA-PEG-PLLA composite microspheres by microencapsulation through a process of suspension-enhanced dispersion by supercritical CO2. Int J Nanomedicine 2012; 7:3013-22. [PMID: 22787397 PMCID: PMC3391004 DOI: 10.2147/ijn.s32662] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The aim of this study was to improve the drug loading, encapsulation efficiency, and sustained-release properties of supercritical CO(2)-based drug-loaded polymer carriers via a process of suspension-enhanced dispersion by supercritical CO(2) (SpEDS), which is an advanced version of solution-enhanced dispersion by supercritical CO(2) (SEDS). METHODS Methotrexate nanoparticles were successfully microencapsulated into poly (L-lactide)-poly(ethylene glycol)-poly(L-lactide) (PLLA-PEG-PLLA) by SpEDS. Methotrexate nanoparticles were first prepared by SEDS, then suspended in PLLA-PEG-PLLA solution, and finally microencapsulated into PLLA-PEG-PLLA via SpEDS, where an "injector" was utilized in the suspension delivery system. RESULTS After microencapsulation, the composite methotrexate (MTX)-PLLA-PEG-PLLA microspheres obtained had a mean particle size of 545 nm, drug loading of 13.7%, and an encapsulation efficiency of 39.2%. After an initial burst release, with around 65% of the total methotrexate being released in the first 3 hours, the MTX-PLLA-PEG-PLLA microspheres released methotrexate in a sustained manner, with 85% of the total methotrexate dose released within 23 hours and nearly 100% within 144 hours. CONCLUSION Compared with a parallel study of the coprecipitation process, microencapsulation using SpEDS offered greater potential to manufacture drug-loaded polymer microspheres for a drug delivery system.
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Affiliation(s)
- Ai-Zheng Chen
- College of Chemical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
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