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Chaikhumwang P, Kitsongsermthon J, Manopakdee K, Chongcharoen W, Nilubol D, Chanvorachote P, Somparn P, Tantituvanont A. Cationic Polylactic Acid-Based Nanoparticles Improve BSA-FITC Transport Across M Cells and Engulfment by Porcine Alveolar Macrophages. AAPS PharmSciTech 2020; 21:134. [PMID: 32415347 DOI: 10.1208/s12249-020-01689-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/13/2020] [Indexed: 01/14/2023] Open
Abstract
This work described the development of a cationic polylactic acid (PLA)-based nanoparticles (NPs) as an antigen delivery system using dimethyldioctadecylammonium bromide (DDA) to facilitate the engulfment of BSA-FITC by porcine alveolar macrophages (3D4/2 cells) and heat-labile enterotoxin subunit B (LTB) to enhance the transport of BSA-FITC across M cells. The experimental design methodology was employed to study the influence of PLA, polyvinyl alcohol (PVA), DDA, and LTB on the physical properties of the PLA-based NPs. The size of selected cationic PLA NPs comprising 5% PLA, 5% PVA, and 0.6% DDA with or without LTB absorption was range from 367 to 390 nm with a polydispersity index of 0.26, a zeta potential of + 26.00 to + 30.55 mV, and entrapment efficiency of 41.43%. Electron micrographs revealed NPs with spherical shape. The release kinetic of BSA from the NPs followed the Korsmeyer-Peppas kinetics. The cationic PLA NPs with LTB surface absorption showed 3-fold increase in BSA-FITC transported across M cells compared with the NPs without LTB absorption. The uptake studies demonstrated 2-fold increase in BSA-FITC intensity in 3D4/2 cells with cationic NPs as compared with anionic NPs. Overall, the results suggested that LTB decreased the retention time of BSA-FITC loaded in the cationic PLA NPs within the M cells, thus promoting the transport of BSA-FITC across the M cells, and cationic NPs composed of DDA help facilitate the uptake of BSA-FITC in the 3D4/2 cells. Further studies in pigs with respiratory antigens will provide information on the efficacy of cationic PLA NPs as a nasal antigen carrier system.
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Yee KT, Tongsima S, Vasieva O, Ngamphiw C, Wilantho A, Wilkinson MC, Somparn P, Pisitkun T, Rojnuckarin P. Analysis of snake venom metalloproteinases from Myanmar Russell's viper transcriptome. Toxicon 2018; 146:31-41. [PMID: 29567103 DOI: 10.1016/j.toxicon.2018.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 02/25/2018] [Accepted: 03/17/2018] [Indexed: 11/23/2022]
Abstract
Snake venom metalloproteinases (SVMPs) are the key enzymes in Russell's viper (RV) venom which target all important components of haemostasis, such as clotting factors, platelets, endothelial cells and basement membrane. The structural diversity of SVMPs contributes to the broad spectrum of biological activities. The aim of the study was to investigate the SVMP transcript profile to gain better insights into the characteristic clinical manifestations of the Myanmar Russell's viper (MRV) bites that distinguish it from the RVs of other habitats. Next generation sequencing (RNA-Seq) of mRNA from MRV venom glands (2 males and 1 female) was performed on an Illumina HiSeq2000 platform and then de novo assembled using Trinity software. A total of 59 SVMP contigs were annotated through a Blastn search against the serpent nucleotide database from NCBI. Among them, disintegrins were the most abundant transcripts (75%) followed by the P-III class SVMPs (25%). The P-II SVMPs were scarce (0.002%), while no P-I SVMPs were detectable in the transcriptome. For detailed structural analysis, contigs were conceptually translated and compared with amino acid sequences from other RVs and other vipers using Clustal Omega. The RTS-disintegrin (jerdostatin homolog) was the most abundant among transcripts corresponding to 5 disintegrin isoforms. From 10 isoforms of SVMPs, RVV-X, and Vipera lebetina apoptosis-inducing protease (VLAIP) homolog, hereby termed Daboia siamensis AIP (DSAIP), were found to be highly expressed. Venom protein analysis using SDS-PAGE followed by mass spectrometry revealed that the disintegrin was scarce, while the latter two SVMPs were abundant. These two proteins can contribute to severe clinical manifestations caused by MRV envenomation.
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Affiliation(s)
- Khin Than Yee
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Biochemistry Research Division, Department of Medical Research, Yangon, Myanmar
| | - Sissades Tongsima
- Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology, PathumThani, Thailand
| | - Olga Vasieva
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom; Ingenet Limited, London, United Kingdom
| | - Chumpol Ngamphiw
- Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology, PathumThani, Thailand
| | - Alisa Wilantho
- Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology, PathumThani, Thailand
| | - Mark C Wilkinson
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | | | - Trairak Pisitkun
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Tantivitayakul P, Benjachat T, Somparn P, Leelahavanichkul A, Kittikovit V, Hirankarn N, Pisitkun T, Avihingsanon Y. Elevated expressions of myeloid-related proteins-8 and -14 are danger biomarkers for lupus nephritis. Lupus 2015. [PMID: 26223295 DOI: 10.1177/0961203315598015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Myeloid-related proteins, MRP-8 and -14, which have been identified as molecules that mediate the danger signaling in innate immune response, are also known as the DAMPs (damage associated molecular pattern molecules). The proteins were found in infiltrating macrophages and neutrophils at inflammatory sites. Their expression was correlated with severe forms of glomerulonephritis. Therefore, this study examined whether or not MRP-8 and -14 can be used as biomarkers for identifying severely active lupus nephritis (LN). Total blood leukocyte samples and renal biopsy tissues from a prospective cohort of LN patients were used to determine mRNA and protein expression levels of MRP-8 and -14. The mRNA levels of MRP-8 and -14 in total blood leukocytes were significantly higher in active LN patients than quiescent LN patients and healthy controls. Moreover, the mRNA levels of MRP-8 and -14 in the total blood leukocytes and kidney tissues were significantly correlated with therapeutic response and the mRNA expression levels in the kidney were associated with an early loss of the kidney function. MRP-8 and -14 can be used as non-invasive prognostic biomarkers in patients with LN.
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Affiliation(s)
- P Tantivitayakul
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Department of Oral Microbiology, Mahidol University, Bangkok, Thailand
| | - T Benjachat
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Biomedical Science, Interdisciplinary Program, Chulalongkorn University, Bangkok, Thailand
| | - P Somparn
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - A Leelahavanichkul
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - V Kittikovit
- Department of Pathology, Chulalongkorn University, Bangkok, Thailand
| | - N Hirankarn
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - T Pisitkun
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Y Avihingsanon
- Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand Department of Medicine, Chulalongkorn University, Bangkok, Thailand
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Kittanamongkolchai W, Rukrung C, Supasiri T, Lertjirachai I, Somparn P, Chariyavilaskul P, Avihingsanon Y. Therapeutic drug monitoring of mycophenolate mofetil for the treatment of severely active lupus nephritis. Lupus 2013; 22:727-32. [DOI: 10.1177/0961203313486949] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Plasma mycophenolic acid (MPA) concentrations may predict therapeutic response in active lupus nephritis (LN). We determined the efficacy and safety of a concentration-controlled MPA regime in the treatment of severely active LN. Methods In this prospective study, 19 biopsy-proven class III/IV LN patients were treated with mycophenolate mofetil (MMF) for 48 weeks. The MMF dosage was based on maximal plasma MPA concentration at 1-hour post dose (MPA-C1). All patients had plasma MPA-C1 levels monitored weekly until achieving the targeted level of >13 mg/L. A low-dose steroid protocol was started at 0.5 mg/kg/day and rapidly tapered to 5 mg/day. Therapeutic response was evaluated at week 24 and week 48. MPA area-under-the curve (MPA-AUC0–12h) was measured at week 12 to verify the optimum dosage. Results No death or end-stage kidney disease occurred in this study. Seventeen patients (89%) responded to therapy at week 24 with four (21%) patients having complete response. There was no renal relapse at week 48 and four more patients had converted from partial response to complete response. Seventy eight percent of patients achieved the recommended MPA-AUC0–12h level. No association between plasma MPA concentrations and adverse reactions or infections was found. Conclusions MPA-C1 may be a practical monitoring of MPA levels in patients with LN. It is convenient to monitor and may facilitate an optimum estimate of MPA exposure.
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Affiliation(s)
- W Kittanamongkolchai
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
| | - C Rukrung
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
| | - T Supasiri
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
| | - I Lertjirachai
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
| | - P Somparn
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
| | - P Chariyavilaskul
- Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Thailand
| | - Y Avihingsanon
- Lupus Research Unit, Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand
- Center of Excellence in Immunology and Immune-Mediated Diseases, Chulalongkorn University, Thailand
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Somparn P, Gibb MJ, Markvichitr K, Chaiyabutr N, Thummabood S, Vajrabukka C. Analysis of climatic risk for cattle and buffalo production in northeast Thailand. Int J Biometeorol 2004; 49:59-64. [PMID: 15138866 DOI: 10.1007/s00484-004-0206-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2003] [Revised: 05/02/2003] [Accepted: 02/14/2004] [Indexed: 05/24/2023]
Abstract
A study of thermal stress risk for cattle and buffalo was made in the Northeast Region of Thailand. Three-hourly air and dew-point temperatures from 15 selected meteorological stations for the period 1990 to 1999 were used to compute values of the temperature/humidity index (THI). Maps of isolines of THI values were generated by geographical software. A THI > or = 84 was assumed to represent conditions where production losses would be likely to occur. Across the study area, the mean total number of days with THI > or = 84 was 56. However, there was a strong north to south gradient across the region. The results suggest that the highest risk of loss to production in the cattle and buffalo industries is in the southern part of this region.
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Affiliation(s)
- P Somparn
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
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