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Zhu Q, Wang S, Fu G, Guo F, Huang W, Zhang T, Dong H, Jin Z, Zhang D. Highly flexible cell membranes are the key to efficient production of lipophilic compounds. J Lipid Res 2024:100597. [PMID: 39029799 DOI: 10.1016/j.jlr.2024.100597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/21/2024] Open
Abstract
Lipophilic compounds have a variety of positive effects on human physiological functions and exhibit good effects in the prevention and treatment of clinical diseases. This has led to significant interest in the technical applications of synthetic biology for the production of lipophilic compounds. However, the strict selective permeability of the cell membrane and the hydrophobic nature of lipophilic compounds pose significant challenges for their production. During fermentation, lipophilic compounds tend to accumulate within cell membrane compartments rather than being secreted extracellularly. The toxic effects of excessive lipophilic compound accumulation can threaten cell viability, while the limited space within the cell membrane restricts further increases in production yield. Consequently, to achieve efficient production of lipophilic compounds, research is increasingly focused on constructing robust and multifunctional microbial cell factories. Utilizing membrane engineering techniques to construct highly flexible cell membranes is considered an effective strategy to break through the upper limit of lipophilic compound production. Currently, there are two main approaches to cell membrane modification: constructing artificial storage compartments for lipophilic compounds and engineering the cell membrane structure to facilitate product outflow. This review summarizes the cell membrane engineering strategies applied to the production of lipophilic compounds in recent years, and emphasizes the importance of highly flexible cell membranes modified by membrane engineering for efficient production of lipophilic compounds.
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Affiliation(s)
- Qiyao Zhu
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Sijia Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Gang Fu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin 300308, China; National Center of Technology Innovation for Synthetic Biology, Tianjin 300308, China.
| | - Fengming Guo
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Wei Huang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Tengyue Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Huina Dong
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin 300308, China; National Center of Technology Innovation for Synthetic Biology, Tianjin 300308, China
| | - Zhaoxia Jin
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Dawei Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin Airport Economic Area, Tianjin 300308, China; National Center of Technology Innovation for Synthetic Biology, Tianjin 300308, China.
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Bohley M, Leroux JC. Gastrointestinal Permeation Enhancers Beyond Sodium Caprate and SNAC - What is Coming Next? ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400843. [PMID: 38884149 DOI: 10.1002/advs.202400843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/13/2024] [Indexed: 06/18/2024]
Abstract
Oral peptide delivery is trending again. Among the possible reasons are the recent approvals of two oral peptide formulations, which represent a huge stride in the field. For the first time, gastrointestinal (GI) permeation enhancers (PEs) are leveraged to overcome the main limitation of oral peptide delivery-low permeability through the intestinal epithelium. Despite some success, the application of current PEs, such as salcaprozate sodium (SNAC), sodium caprylate (C8), and sodium caprate (C10), is generally resulting in relatively low oral bioavailabilities (BAs)-even for carefully selected therapeutics. With several hundred peptide-based drugs presently in the pipeline, there is a huge unmet need for more effective PEs. Aiming to provide useful insights for the development of novel PEs, this review summarizes the biological hurdles to oral peptide delivery with special emphasis on the epithelial barrier. It describes the concepts and action modes of PEs and mentions possible new targets. It further states the benchmark that is set by current PEs, while critically assessing and evaluating emerging PEs regarding translatability, safety, and efficacy. Additionally, examples of novel PEs under preclinical and clinical evaluation and future directions are discussed.
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Affiliation(s)
- Marilena Bohley
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
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Lim HJ, Hong S, Jin H, Chua B, Son A. A multi-functional reagent suitable for 1-step rapid DNA intercalation fluorescence-based screening of total bacteria in drinking water. CHEMOSPHERE 2023; 313:137541. [PMID: 36526135 DOI: 10.1016/j.chemosphere.2022.137541] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
The prerequisites for rapid screening of total bacteria in drinking water are low detection limit and convenience. Inspired by commercial adenosine 5'-triphosphate (ATP) based total bacterial detection kits, we pursued likewise convenience but with much lower detection limit. Existing intercalation fluorescence-based techniques employ multiple reagents to permeate the cell membrane and intercalate dye into the DNA in discrete sequential steps. A simple multi-functional reagent is proposed to do the same within one step. Surfactants (TritonX and SDS), and intercalating dyes (SYBR green, SYBR gold) were examined for their mutual compatibility and augmented with EDTA. Evaluation was performed with Gram negative Escherichia coli K12 (E. coli K12) and Gram positive Bacillus subtilis (B. subtilis) at serial dilution ratios from 10-6 to 10-2. Comparison was made with absorbance (600 nm) measurements and a commercial ATP kit. Using charge integrated photodetection, the proposed 1-step reagent achieved an LOD (1.00 × 10-6, B. subtilis) that is two orders of magnitude lower than that of ATP kit (LOD = 1.06× 10-4). This means it could detect minute quantity of total bacteria that is otherwise undetected by the ATP kit.
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Affiliation(s)
- Hyun Jeong Lim
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea; Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, USA
| | - Seungwon Hong
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hyowon Jin
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Beelee Chua
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea.
| | - Ahjeong Son
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea.
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4
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Biria D. Tailored lipopeptide surfactants as potentially effective drugs to treat SARS-CoV-2 infection. Med Hypotheses 2022; 167:110948. [PMID: 36157252 PMCID: PMC9482169 DOI: 10.1016/j.mehy.2022.110948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/18/2022] [Accepted: 07/23/2022] [Indexed: 11/22/2022]
Abstract
Finding effective drugs to treat SARS-CoV-2 infection as a complementary step to the extensive vaccination is of the great importance to overcome the current pandemic situation. It has been shown that some bio-active unsaturated fatty acids such as Arachidonic Acid (AA) can reduce the infection severity and even destroy the virus by disintegration of the virus lipid envelope. On the other hand, it has been reported that several designed peptides with an activity similar to the angiotensin converting enzyme 2 (ACE-2), which has a high affinity towards the novel corona virus spike protein, can inhibit the viral infection through concealing the spike proteins from the cell surfaces ACE-2. Binding the mentioned peptides to the bio-active lipids like AA will result in a lipopeptide surfactant molecule with the synergistic effect of both the active moieties in its structure to treat the novel corona infection. In addition, the peptide segment increases the aqueous solubility of the lipid segment and enables the targeted delivery of the surfactant molecule to the virus. The resultant lipopeptide would be a potentially effective drug for SARS-CoV-2 infection treatment with the minimum side effects.
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Affiliation(s)
- Davoud Biria
- Department of Biotechnology, Faculty of Biological Sciences and Technologies, University of Isfahan, Isfahan, Iran
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Zhang Y, Yang Y, Mao Y, Zhao Y, Li X, Hu J, Li Y. Effects of mono- and di-glycerides/phospholipids (MDG/PL) on the bioaccessibility of lipophilic nutrients in a protein-based emulsion system. Food Funct 2022; 13:8168-8178. [PMID: 35822541 DOI: 10.1039/d2fo01190e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipophilic nutrients are known to have relatively poor absorption, thus limiting their bioaccessibility. Consequently, researchers in food and pharmaceutical areas are exploring different techniques to promote the efficient delivery of lipophilic nutrients. The effects of two polar lipids, namely mono-, di-glycerides (MDG) and lecithin (PL), on the bioaccessibility of lipophilic nutrients were investigated in this study with a protein-based emulsion model system. During the emulsion preparation and formation, the incorporation of MDG/PL was found to benefit the dissolution and stabilization of lipophilic nutrients, such as lutein, and could also modify the construction of the emulsion surface. An in vitro digestion study showed that the use of MDG/PL could significantly increase the bioaccessibility of lipophilic nutrients [lutein, vitamin E, and docosahexaenoic acid (DHA)] by 13.52%, 186.90%, and 36.17% in a protein-based emulsion system. The use of MDG and PL decreased the interfacial tension in all the samples: protein only 20.65 mN m-1, protein-PL 6.47 mN m-1, and protein-MDG/PL 4.23 mN m-1, as well as 12.11 mN m-1, 1.26 mN m-1 and 1.16 mN m-1 with the presence of bile salts. Caco-2 cell culture results showed that, with the application of MDG/PL, the absorption rate of micelles was higher than that in the other groups and this resulted in a 70% absorption increase for lutein. Therefore, MDG/PL can improve the lipophilic nutrient absorption via promoting the affinity of formed micelles to the enterocytes of the small intestine. This study exhibited the effectiveness of MDG/PL on improving the bioaccessibility of lipophilic nutrients in a protein-based emulsion system mimicking the digestion and absorption fate of breast milk in an infant's gastric intestinal tract, thus suggesting that MDG/PL can be used as a technical pathway to improve the absorption of lipophilic nutrients.
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Affiliation(s)
- Yingzhu Zhang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ying Yang
- Abbott Nutrition Research & Development Center, Abbott Ltd, Shanghai 200233, People's Republic of China
| | - Yingyi Mao
- Abbott Nutrition Research & Development Center, Abbott Ltd, Shanghai 200233, People's Republic of China
| | - Yanrong Zhao
- Abbott Nutrition Research & Development Center, Abbott Ltd, Shanghai 200233, People's Republic of China
| | - Xiang Li
- Abbott Nutrition Research & Development Center, Abbott Ltd, Shanghai 200233, People's Republic of China
| | - Junjie Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yan Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. .,Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, China
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Poloxamer 188 as surfactant in biological formulations - An alternative for polysorbate 20/80? Int J Pharm 2022; 620:121706. [PMID: 35367584 DOI: 10.1016/j.ijpharm.2022.121706] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/05/2022] [Accepted: 03/26/2022] [Indexed: 01/25/2023]
Abstract
Surfactants are used to stabilize biologics. Particularly, polysorbates (Tween® 20 and Tween® 80) dominate the group of surfactants in protein and especially antibody drug products. Since decades drug developers rely on the ethoxylated sorbitan fatty acid ester mixtures to stabilize sensitive molecules such as proteins. Reasons are (i) excellent stabilizing properties, and (ii) well recognized safety and tolerability profile of these polysorbates in humans, especially for parenteral applications. However, over the past decade concerns regarding the stability of these two polysorbates were raised. The search of alternatives with preferably less reservations concerning degradation and product quality reducing issues leads, among others, to poloxamer 188 (e.g. Kolliphor® P188), a nonionic triblock-copolymer surfactant. This review sums up our current knowledge related to the characterization and physico-chemical properties of poloxamer 188, its analytics and stability properties for biological formulations. Furthermore, the advantages and disadvantages as a suitable polysorbate-alternative for the stabilization of biologics are discussed.
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Peng J, Wang Y, Wu T, Tan L, Tang M. In vitro anticancer activity of Nε-acyl lysine methyl ester through folate receptor targeted liposomes. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Improvement of Oral Bioavailability and Anti-Tumor Effect of Zingerone Self-Microemulsion Drug Delivery System. J Pharm Sci 2021; 110:2718-2727. [PMID: 33610568 DOI: 10.1016/j.xphs.2021.01.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/14/2021] [Accepted: 01/21/2021] [Indexed: 12/23/2022]
Abstract
This study sought to prepare a self-microemulsion drug delivery system containing zingerone (Z-SMEDDS) to improve the low oral bioavailability of zingerone and anti-tumor effect. Z-SMEDDS was characterized by particle size, zeta potential and encapsulation efficiency, while its pharmacokinetics and anti-tumor effects were also evaluated. Z-SMEDDS had stable physicochemical properties, including average particle size of 17.29 ± 0.07 nm, the zeta potential of -22.81 ± 0.29 mV, and the encapsulation efficiency of 97.96% ± 0.02%. In vitro release studies have shown the release of zingerone released by Z-SMEDDS was significantly higher than free zingerone in different release media. The relative oral bioavailability of Z-SMEDDS was 7.63 times compared with free drug. Meanwhile, the half inhibitory concentration (IC50)of Z-SMEDDS and free zingerone was 8.45 μg/mL and 13.30 μg/mL, respectively on HepG2. This study may provide a preliminary basis for further clinical research and application of Z-SMEDDS.
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Sanches BCP, Rocha CA, Martin Bedoya JG, da Silva VL, da Silva PB, Fusco-Almeida AM, Chorilli M, Contiero J, Crusca E, Marchetto R. Rhamnolipid-Based Liposomes as Promising Nano-Carriers for Enhancing the Antibacterial Activity of Peptides Derived from Bacterial Toxin-Antitoxin Systems. Int J Nanomedicine 2021; 16:925-939. [PMID: 33603360 PMCID: PMC7882795 DOI: 10.2147/ijn.s283400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/25/2020] [Indexed: 12/19/2022] Open
Abstract
Background Antimicrobial resistance poses substantial risks to human health. Thus, there is an urgent need for novel antimicrobial agents, including alternative compounds, such as peptides derived from bacterial toxin-antitoxin (TA) systems. ParELC3 is a synthetic peptide derived from the ParE toxin reported to be a good inhibitor of bacterial topoisomerases and is therefore a potential antibacterial agent. However, ParELC3 is inactive against bacteria due to its inability to cross the bacterial membranes. To circumvent this limitation we prepared and used rhamnolipid-based liposomes to carry and facilitate the passage of ParELC3 through the bacterial membrane to reach its intracellular target - the topoisomerases. Methods and Results Small unilamellar liposome vesicles were prepared by sonication from three formulations that included 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and cholesterol. ParELC3 was loaded with high efficiency into the liposomes. Characterization by DLS and TEM revealed the appropriate size, zeta potential, polydispersity index, and morphology. In vitro microbiological experiments showed that ParELC3 loaded-liposomes are more efficient (29 to 11 µmol·L−1) compared to the free peptide (>100 µmol·L−1) at inhibiting the growth of standard E. coli and S. aureus strains. RL liposomes showed high hemolytic activity but when prepared with POPC and Chol this activity had a significant reduction. Independently of the formulation, the vesicles had no detectable cytotoxicity to HepG2 cells, even at the highest concentrations tested (1.3 mmol·L−1 and 50 µmol·L−1 for rhamnolipid and ParELC3, respectively). Conclusion The present findings suggest the potential use of rhamnolipid-based liposomes as nanocarrier systems to enhance the bioactivity of peptides.
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Affiliation(s)
- Beatriz Cristina Pecoraro Sanches
- São Paulo State University (UNESP), Institute of Chemistry, Department of Biochemistry and Organic Chemistry, Araraquara, SP, Brazil
| | - Camila Aguiar Rocha
- São Paulo State University (UNESP), Institute of Chemistry, Department of Biochemistry and Organic Chemistry, Araraquara, SP, Brazil
| | - Jose Gregorio Martin Bedoya
- São Paulo State University (UNESP), Institute of Chemistry, Department of Biochemistry and Organic Chemistry, Araraquara, SP, Brazil
| | - Vinicius Luiz da Silva
- São Paulo State University (UNESP), Institute of Biosciences, Department of General and Applied Biology, Rio Claro, SP, Brazil
| | - Patrícia Bento da Silva
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil
| | - Ana Marisa Fusco-Almeida
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, SP, Brazil
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil
| | - Jonas Contiero
- São Paulo State University (UNESP), Institute of Biosciences, Department of General and Applied Biology, Rio Claro, SP, Brazil
| | - Edson Crusca
- São Paulo State University (UNESP), Institute of Chemistry, Department of Biochemistry and Organic Chemistry, Araraquara, SP, Brazil
| | - Reinaldo Marchetto
- São Paulo State University (UNESP), Institute of Chemistry, Department of Biochemistry and Organic Chemistry, Araraquara, SP, Brazil
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Nigam P. Thermodynamic quantification of sodium dodecyl sulfate penetration in cholesterol and phospholipid monolayers. Chem Phys Lipids 2020; 232:104974. [DOI: 10.1016/j.chemphyslip.2020.104974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 01/13/2023]
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Kaur T, Putatunda C, Vyas A, Kumar G. Zinc oxide nanoparticles inhibit bacterial biofilm formation via altering cell membrane permeability. Prep Biochem Biotechnol 2020; 51:309-319. [PMID: 32921268 DOI: 10.1080/10826068.2020.1815057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In the current scenario nanoparticles (NPs) have gained a breathtaking impetus due to their multidimensional applications in varied fields. In the present effort, biogenic synthesis of Zinc Oxide nanoparticles (ZnO NPs) was carried out using aqueous extract of dried powder of Emblica officinalis (Amla). Physicochemical characterization of nanoparticles was carried out via UV-Visible (UV-Vis) spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) wherein the particles were found to be quasi spherical and with a size ranging between 3 and 11 nm. The ZnO nanoparticles exhibited significant antibacterial activity against bacteria as Streptococcus pyogenes MTCC 442, Bacillus cereus MTCC 1272, Escherichia coli MTCC 1687 and Pseudomonas aeruginosa MTCC 4673. The nanoparticles displayed high anti-biofilm activity toward all the bacterial strains, when tested against three different base materials viz. glass, plastic and metal (Aluminum). Further, the nanoparticle treatment of bacterial cells caused changes in their cell membrane permeability, leading to leakage of nucleic acid from the bacterial cells, thereby defining it as the most probable mechanism for their anti-biofilm potential.
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Affiliation(s)
- Tanvir Kaur
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Chayanika Putatunda
- Department of Microbiology, Om Sterling Global University, Hisar, Haryana, India
| | - Ashish Vyas
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
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Ma L, Yang X, Yao X, Weng W. Solubilization of Hexyl Aminolevulinate by Surfactants for Tumor Fluorescence Detection. Photochem Photobiol 2020; 96:1088-1095. [PMID: 32125708 DOI: 10.1111/php.13252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/20/2020] [Indexed: 11/29/2022]
Abstract
Hexyl aminolevulinate (HAL) is a lipophilic derivative of 5-aminolevulinic acid (5-ALA) and can induce more protoporphyrin IX (PpIX) formation and stronger fluorescence intensity (FI) than 5-ALA, which will greatly facilitate photodynamic diagnosis and therapy. The main drawback of HAL is its low solubility in neutral aqueous media. In this study, surfactants were used to increase HAL solubility in the cell culture medium and serum, followed by in vitro fluorescence formation measurement in human pancreatic cancer cells (SW1990) and in vivo fluorescence detection in tumor-bearing mice. The results showed that Tween 80 (TW80) and Kolliphor® HS 15 (HS15) increased the solubility of HAL in the selected media. Although TW80 and HS15 exhibited in vitro cytotoxicity at high concentrations (5 mg mL-1 ), they facilitated fluorescent signal formation at the early stage of cell incubation. When surfactants were used, the FI should be determined without the routine washing process because surfactant-containing culture medium caused the loss of synthesized PpIX during the washing process. When HAL dissolved in TW80 solution was injected intraperitoneally into pancreatic cancer-bearing mice at a dose of 50 mg kg-1 , the tumors exhibited red fluorescence, which indicated that systemic administration of surfactant-solubilized HAL might be applicable for tumor fluorescence detection in vivo.
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Affiliation(s)
- Lirong Ma
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xuanlin Yang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xiuzhong Yao
- Department of Radiology, Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Weiyu Weng
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China.,Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, Shanghai, China
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Kierkegaard A, Chen C, Armitage JM, Arnot JA, Droge S, McLachlan MS. Tissue Distribution of Several Series of Cationic Surfactants in Rainbow Trout ( Oncorhynchus mykiss) Following Exposure via Water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:4190-4199. [PMID: 32062967 PMCID: PMC7343282 DOI: 10.1021/acs.est.9b07600] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/31/2020] [Accepted: 02/16/2020] [Indexed: 05/19/2023]
Abstract
Bioaccumulation assessment is important for cationic surfactants in light of their use in a wide variety of consumer products and industrial processes. Because they sorb strongly to natural surfaces and to cell membranes, their bioaccumulation behavior is expected to differ from other classes of chemicals. Divided over two mixtures, we exposed rainbow trout to water containing 10 alkyl amines and 2 quaternary alkylammonium surfactants for 7 days, analyzed different fish tissues for surfactant residues, and calculated the tissues' contribution to fish body burden. Mucus, skin, gills, liver, and muscle each contributed at least 10% of body burden for the majority of the test chemicals. This indicates that both sorption to external surfaces and systemic uptake contribute to bioaccumulation. In contrast to the analogue alkylamine bases, the permanently charged quaternary ammonium compounds accumulated mostly in the gills and were nearly absent in internal tissues, indicating that systemic uptake of the charged form of cationic surfactants is very slow. Muscle-blood distribution coefficients were close to 1 for all alkyl amines, whereas liver-blood distribution coefficients ranged from 13 to 90, suggesting that the dominant considerations for sorption in liver are different from those in blood and muscle. The significant fraction of body burden on external surfaces can have consequences for bioaccumulation assessment.
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Affiliation(s)
- Amelie Kierkegaard
- Department
of Environmental Science and Analytical Chemistry, Stockholm University, SE-106
91 Stockholm, Sweden
| | - Chang’er Chen
- Department
of Environmental Science and Analytical Chemistry, Stockholm University, SE-106
91 Stockholm, Sweden
- Environmental
Research Institute, School of Environment, Guangdong Provincial Key
Laboratory of Chemical Pollution and Environmental Safety & MOE
Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, 510006 Guangzhou, China
| | | | - Jon A. Arnot
- ARC
Arnot Research and Consulting, M4M-1W4 Toronto, Ontario, Canada
- Department
of Physical and Environmental Sciences, University of Toronto, Scarborough, M1C 1A4 Toronto, Ontario, Canada
| | - Steven Droge
- Institute
for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, 1098 XH Amsterdam, Netherlands
| | - Michael S. McLachlan
- Department
of Environmental Science and Analytical Chemistry, Stockholm University, SE-106
91 Stockholm, Sweden
- E-mail:
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Patil S, Narvekar A, Puranik A, Jain R, Dandekar P. Formulation of Therapeutic Proteins: Strategies for Developing Oral Protein Formulations. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/9783527812172.ch12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Sze LP, Li HY, Lai KLA, Chow SF, Li Q, KennethTo KW, Lam TNT, Lee WYT. Oral delivery of paclitaxel by polymeric micelles: A comparison of different block length on uptake, permeability and oral bioavailability. Colloids Surf B Biointerfaces 2019; 184:110554. [PMID: 31627103 DOI: 10.1016/j.colsurfb.2019.110554] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 08/23/2019] [Accepted: 10/02/2019] [Indexed: 12/26/2022]
Abstract
Drug solubility and permeability are two major challenges affecting oral delivery, the most popular route of drug administration. Polymeric micelles is an emerging technology for overcoming the current oral drug delivery hurdles. Previous study primarily focused on developing new polymers or new micellar systems and a systematic investigation of the impact of the polymer block length on solubility and permeability enhancement; and their subsequent effect on oral bioavailability is lacking. Herein, by using paclitaxel, a poorly soluble P-glycoproteins (P-gp) substrate, as a model, we aim to assess and compare the drug-loaded micelles prepared with two different molecular weight of poly(ethylene glycol)-block-poly(ε-caprolactone) (PEG-b-PCL), with the ultimate goal of establishing a strong scientific rationale for proper design of formulations for oral drug delivery. PEG-b-PCL (750:570) (PEG17-b-PCL5) and PEG-b-PCL (5k:10k) (PEG114-b-PCL88) effectively enhanced the solubility of paclitaxel compared to the free drug. PEG-b-PCL (750:570) increased both P-gp and non P-gp substrate cellular uptake and increased the apparent permeability coefficient of a P-gp substrate. In vivo animal study showed that PEG-b-PCL micelles efficiently enhanced the oral bioavailability of paclitaxel. In addition to solubility enhancement, polymer choice also plays a pivotal role in determining the oral bioavailability improvement, probably via permeation enhancement. In conclusion, the knowledge gained in this study enables rational design of polymeric micelles to overcome the current challenges of oral drug delivery and it also provides a basis for future clinical translation of the technology.
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Affiliation(s)
- Lai Pan Sze
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Ho Yin Li
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Ka Lun Alan Lai
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Qingqing Li
- Faculty of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Kin Wah KennethTo
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Tai Ning Teddy Lam
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Wai Yip Thomas Lee
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong.
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16
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Pharmacokinetic Study of NADPH Oxidase Inhibitor Ewha-18278, a Pyrazole Derivative. Pharmaceutics 2019; 11:pharmaceutics11090482. [PMID: 31533299 PMCID: PMC6781499 DOI: 10.3390/pharmaceutics11090482] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/09/2019] [Accepted: 09/16/2019] [Indexed: 01/01/2023] Open
Abstract
In a previous study, the specific NOX1/2/4 inhibitor Ewha-18278 was confirmed as a possible treatment for osteoporosis both in vitro and in vivo. Here, we investigated the pharmacokinetics (PK) of the compound by intravenous (IV) and oral administrations to rats. Dimethyl sulfoxide (DMSO)-based and diazepam injection-based formulations were used to dissolve the compound. In the latter formulation applicable to humans, the changes in PK parameters were monitored at two different concentrations (1 mg/mL and 2 mg/mL). The area under the plasma concentration-time curve from zero time to infinity (AUCinf) of Ewha-18278 was highest in the DMSO-based formulation (2 mg/mL). Also, the concentration was increased 1.6-fold at the low concentration of the diazepam injection-based formulation compared to the high concentration. There was no statistical significance in the AUCinf of the compound between DMSO-based formulation (2 mg/mL) and diazepam injection-based formulation (1 mg/mL). These results suggest that Ewha-18278 can be delivered to humans by both IV and oral routes. In addition, the diazepam injection-based formulation of Ewha-18278 appears to be a suitable candidate for dosage development for future toxicity test and clinical trial.
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Sulaiman TNS, Larasati D, Nugroho AK, Choiri S. Assessment of the Effect of PLGA Co-polymers and PEG on the Formation and Characteristics of PLGA-PEG-PLGA Co-block Polymer Using Statistical Approach. Adv Pharm Bull 2019; 9:382-392. [PMID: 31592431 PMCID: PMC6773940 DOI: 10.15171/apb.2019.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 04/20/2019] [Accepted: 05/20/2019] [Indexed: 02/04/2023] Open
Abstract
Purpose: To assess the effect of the lactic acid (LA)-to-glycolic acid (GA) molar ratio and polyethylene glycol (PEG) concentration on the formation of poly-lactide co-glycolide acid (PLGA)-PEG-PLGA co-block polymers simultaneously using statistical approach. Methods: A 22 full factorial design with the addition of a point in the center of the design, namely curvature, was applied. Fourier transform infrared (FTIR), differential scanning calorimetry (DSC), and nuclear magnetic resonance (NMR) were performed to confirm the formation of the co-block polymer. Simvastatin (SMV), a drug model was incorporated into the nano-polymeric micellar (NpM) of PLGA-PEG-PLGA followed by solubility phase, particle size, zeta potential, and entrapment efficiency characterizations. Results: FTIR, DSC, and NMR successfully confirmed the formation of co-block polymers. Solubility of SMV increased from 2 to 44-folds depending on co-block concentration with entrapment efficiency of 59%-80%. The NpM had size in the range of 206 to 402 nm with negative zeta potential. LA to GA ratio had greater effect on particle size reduction and increasing of co-polymer length. In addition, it had higher contributions on increasing of solubility and entrapment efficiency of SMV than PEG. Conclusion: According to these findings, the LA to GA ratio and PEG concentration gained a great consideration in order to prepare the PLGA-PEG-PLGA co-block which fulfilled the quality target product profile of NpM delivery system.
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Affiliation(s)
| | - Dwi Larasati
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta, Indonesia 55281
| | - Akhmad Kharis Nugroho
- Department of Pharmaceutics, Universitas Gadjah Mada, Sekip Utara, Yogyakarta, Indonesia 55281
| | - Syaiful Choiri
- Pharmaceutical Technology and Drug Delivery, Department of Pharmacy, Universitas Sebelas Maret, Ir. Sutami 36A, Surakarta, Indonesia, 57126
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18
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Zhang K, Wang Q, Yang Q, Wei Q, Man N, Adu-Frimpong M, Toreniyazov E, Ji H, Yu J, Xu X. Enhancement of Oral Bioavailability and Anti-hyperuricemic Activity of Isoliquiritigenin via Self-Microemulsifying Drug Delivery System. AAPS PharmSciTech 2019; 20:218. [PMID: 31187334 DOI: 10.1208/s12249-019-1421-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/15/2019] [Indexed: 12/14/2022] Open
Abstract
The aim of this study was to develop a self-microemulsifying drug delivery system (SMEDDS) for enhancement of the oral bioavailability of isoliquiritigenin (ISL) as well as evaluate its in vivo anti-hyperuricemic effect in rats. The ISL-loaded self-microemulsifying drug delivery system (ISL-SMEDDS) was comprised of ethyl oleate (EO, oil phase), Tween 80 (surfactant), and PEG 400 (co-surfactant). The ISL-SMEDDS exhibited an acceptable narrow size distribution (44.78 ± 0.35 nm), negative zeta potential (- 10.67 ± 0.86 mV), and high encapsulation efficiency (98.17 ± 0.24%). The in vitro release study indicated that the release rates of the formulation were obviously higher in different release media (HCl, pH 1.2; PBS, pH 6.8; double-distilled water, pH 7.0) compared with the ISL solution. The oral bioavailability of the ISL-SMEDDS was enhanced by 4.71 times in comparison with the free ISL solution. More importantly, ISL-SMEDDS significantly reduced uric acid level by inhibiting xanthine oxidase (XOD) activity in the model rats. Collectively, the prepared ISL-SMEDDS proved to be potential carriers for enhancing the solubility and oral bioavailability of ISL, as well as ameliorating its anti-hyperuricemic effect.
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19
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Cavanagh RJ, Smith PA, Stolnik S. Exposure to a Nonionic Surfactant Induces a Response Akin to Heat-Shock Apoptosis in Intestinal Epithelial Cells: Implications for Excipients Safety. Mol Pharm 2019; 16:618-631. [PMID: 30608696 DOI: 10.1021/acs.molpharmaceut.8b00934] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Amphipathic, nonionic, surfactants are widely used in pharmaceutical, food, and agricultural industry to enhance product features; as pharmaceutical excipients, they are also aimed at increasing cell membrane permeability and consequently improving oral drugs absorption. Here, we report on the concentration- and time-dependent succession of events occurring throughout and subsequent exposure of Caco-2 epithelium to a "typical" nonionic surfactant (Kolliphor HS15) to provide a molecular explanation for nonionic surfactant cytotoxicity. The study shows that the conditions of surfactant exposure, which increase plasma membrane fluidity and permeability, produced rapid (within 5 min) redox and mitochondrial effects. Apoptosis was triggered early during exposure (within 10 min) and relied upon an initial mitochondrial membrane hyperpolarization (5-10 min) as a crucial step, leading to its subsequent depolarization and caspase-3/7 activation (60 min). The apoptotic pathway appears to be triggered prior to substantial surfactant-induced membrane damage (observed ≥60 min). We hence propose that the cellular response to the model nonionic surfactant is triggered via surfactant-induced increase in plasma membrane fluidity, a phenomenon akin to the stress response to membrane fluidization induced by heat shock, and consequent apoptosis. Therefore, the fluidization effect that confers surfactants the ability to enhance drug permeability may also be intrinsically linked to the propagation of their cytotoxicity. The reported observations have important implications for the safety of a multitude of nonionic surfactants used in drug delivery formulations and to other permeability enhancing compounds with similar plasma membrane fluidizing mechanisms.
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Affiliation(s)
- Robert J Cavanagh
- Division of Molecular Therapeutics and Formulation, School of Pharmacy , University of Nottingham , Nottingham NG7 2RD , United Kingdom
| | - Paul A Smith
- School of Life Science , University of Nottingham , Nottingham NG7 2RD , United Kingdom
| | - Snow Stolnik
- Division of Molecular Therapeutics and Formulation, School of Pharmacy , University of Nottingham , Nottingham NG7 2RD , United Kingdom
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20
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Gu K, Zhu WH, Peng X. Enhancement strategies of targetability, response and photostability for in vivo bioimaging. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9382-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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AboulFotouh K, Allam AA, El-Badry M, El-Sayed AM. Self-emulsifying drug–delivery systems modulate P-glycoprotein activity: role of excipients and formulation aspects. Nanomedicine (Lond) 2018; 13:1813-1834. [DOI: 10.2217/nnm-2017-0354] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Self-emulsifying drug–delivery systems (SEDDS) have been widely employed to ameliorate the oral bioavailability of P-glycoprotein (P-gp) substrate drugs and to overcome multidrug resistance in cancer cells. However, the role of formulation aspects in the reduced P-gp activity is not fully understood. In this review, we first explore the role of various SEDDS excipients in the reduced P-gp activity with the main emphasis on the effective excipient concentration range for excipient-mediated modulation of P-gp activity and then we discuss the synergistic effect of various formulation aspects on the excipient-mediated modulation of P-gp activity. This review provides an approach to develop a rationally designed SEDDS to overcome P-gp-mediated drug efflux.
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Affiliation(s)
- Khaled AboulFotouh
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ayat A Allam
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mahmoud El-Badry
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ahmed M El-Sayed
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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22
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Singh P, Singh M, Kanoujia J, Arya M, Saraf SK, Saraf SA. Process optimization and photostability of silymarin nanostructured lipid carriers: effect on UV-irradiated rat skin and SK-MEL 2 cell line. Drug Deliv Transl Res 2018; 6:597-609. [PMID: 27431400 DOI: 10.1007/s13346-016-0317-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The objective of the present work was to formulate a novel stable delivery system which would not only overcome the solubility issue of silymarin, but also help to increase the therapeutic value by better permeation, anticancer action and reduced toxicity. This was envisaged through the recent developments in nanotechnology, combined with the activity of the phytoconstituent silymarin. A 2(3) full factorial design based on three independent variables was used for process optimization of nanostructured lipid carriers (NLC). Developed formulations were evaluated on the basis of particle size, morphology, in vitro drug release, photostability and cell line studies. Optimized silymarin-NLC was incorporated into carbopol gel and further assessed for rheological parameters. Stable behaviour in presence of light was proven by photostability testing of formulation. Permeability parameters were significantly higher in NLC as compared to marketed phytosome formulation. The NLC based gel described in this study showed faster onset, and prolonged activity up to 24 h and better action against edema as compared to marketed formulation. In case of anticancer activity of silymarin-NLC against SK-MEL 2 cell lines, silymarin-NLC proved to possess anticancer activity in a dose-dependent manner (10-80 μM) and induced apoptosis at 80 μM in SK-MEL 2 cancer cells. This work documents for the first time that silymarin can be formulated into nanostructured lipoidal carrier system for enhanced permeation, greater stability as well as anticancer activity for skin.
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Affiliation(s)
- Pooja Singh
- Babasaheb Bhimrao Ambedkar University, Lucknow, UP, India
| | - Mahendra Singh
- Babasaheb Bhimrao Ambedkar University, Lucknow, UP, India
| | | | - Malti Arya
- Babasaheb Bhimrao Ambedkar University, Lucknow, UP, India
| | - Shailendra K Saraf
- Babasaheb Bhimrao Ambedkar University, Lucknow, UP, India.,BBDNIIT, Lucknow, India
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23
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Di Nica V, Gallet J, Villa S, Mezzanotte V. Toxicity of Quaternary Ammonium Compounds (QACs) as single compounds and mixtures to aquatic non-target microorganisms: Experimental data and predictive models. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:567-577. [PMID: 28494277 DOI: 10.1016/j.ecoenv.2017.04.028] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/24/2017] [Accepted: 04/13/2017] [Indexed: 05/07/2023]
Abstract
The toxic effects of five Quaternary Ammonium Compounds (QACs) that are widely used as active ingredients in personal care products were assessed using the bioluminescent bacterium Aliivibrio fischeri (formerly Vibrio fischeri) (Microtox® test system). The experimental results showed a relevant toxicity for almost all of the single QACs, with IC50 values lower than 1mgL-1. Analysis of the mode of action through the application of the Quantitative Structure-Activity Relationship (QSAR) models indicated an a-specific reactivity for most of the QACs toward A. fischeri. Only hexadecyl trimethyl ammonium chloride (ATMAC-16) behaved as a polar-narcotic, with a low reactivity toward the bacterial cell membrane. The concentration response curves of the different binary and multicomponent mixtures of QACs were also evaluated with respect to the predictions from the Concentration Addition (CA) and Independent Action (IA) models. For almost all of the binary and multicomponent mixtures (7 out of 11 mixtures tested), an agreement between the experimental and predicted ICx was observed and confirmed via application of the Model Deviation Ratio (MDR). In four cases, some deviations from the expected behaviour were observed (potential antagonistic and synergistic interactions) at concentrations on the order of hundreds of µgL-1, which could be of environmental concern, especially in the case of synergistic effects. The analysis of aquatic ecotoxicity data and the few available values of the measured environmental concentrations (MECs) from the literature for wastewaters and receiving waterbodies suggest that a potential risk toward aquatic life cannot be excluded.
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Affiliation(s)
- V Di Nica
- Dept. of Earth and Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - J Gallet
- Unités de Formation et de Recherche - Sciences Fondamentales et Appliquées, Université Savoie Mont-Blanc, Le Bourget du Lac Cedex 73376, France
| | - S Villa
- Dept. of Earth and Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - V Mezzanotte
- Dept. of Earth and Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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24
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Timmer N, Droge STJ. Sorption of Cationic Surfactants to Artificial Cell Membranes: Comparing Phospholipid Bilayers with Monolayer Coatings and Molecular Simulations. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:2890-2898. [PMID: 28187261 PMCID: PMC5343551 DOI: 10.1021/acs.est.6b05662] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This study reports the distribution coefficient between phospholipid bilayer membranes and phosphate buffered saline (PBS) medium (DMW,PBS) for 19 cationic surfactants. The method used a sorbent dilution series with solid supported lipid membranes (SSLMs). The existing SSLM protocol, applying a 96 well plate setup, was adapted to use 1.5 mL glass autosampler vials instead, which facilitated sampling and circumvented several confounding loss processes for some of the cationic surfactants. About 1% of the phospholipids were found to be detached from the SSLM beads, resulting in nonlinear sorption isotherms for compounds with log DMW values above 4. Renewal of the medium resulted in linear sorption isotherms. DMW values determined at pH 5.4 demonstrated that cationic surfactant species account for the observed DMW,PBS. Log DMW,PBS values above 5.5 are only experimentally feasible with lower LC-MS/MS detection limits and/or concentrated extracts of the aqueous samples. Based on the number of carbon atoms, dialkylamines showed a considerably lower sorption affinity than linear alkylamine analogues. These SSLM results closely overlapped with measurements on a chromatographic tool based on immobilized artificial membranes (IAM-HPLC) and with quantum-chemistry based calculations with COSMOmic. The SSLM data suggest that IAM-HPLC underestimates the DMW of ionized primary and secondary alkylamines by 0.8 and 0.5 log units, respectively.
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25
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Carugo D, Aron M, Sezgin E, Bernardino de la Serna J, Kuimova MK, Eggeling C, Stride E. Modulation of the molecular arrangement in artificial and biological membranes by phospholipid-shelled microbubbles. Biomaterials 2017; 113:105-117. [DOI: 10.1016/j.biomaterials.2016.10.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/22/2016] [Accepted: 10/23/2016] [Indexed: 12/17/2022]
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26
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Synthesis, physicochemical properties and membrane interaction of novel quaternary ammonium surfactants derived from l -Tyrosine and l -DOPA in relation to their antimicrobial, hemolytic activities and in vitro cytotoxicity. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Alharbi HA, Morandi G, Giesy JP, Wiseman SB. Effect of oil sands process-affected water on toxicity of retene to early life-stages of Japanese medaka (Oryzias latipes). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 176:1-9. [PMID: 27104238 DOI: 10.1016/j.aquatox.2016.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/09/2016] [Accepted: 04/11/2016] [Indexed: 06/05/2023]
Abstract
Toxicity of oil sands process-affected water (OSPW) to aquatic organisms has been studied, but effects of co-exposure to OSPW and polycyclic-aromatic hydrocarbons (PAHs), which are an important class of chemicals in tailings ponds used to store OSPW, has not been investigated. The goal of the current study was to determine if organic compounds extracted from the aqueous phase of relatively fresh OSPW from Base-Mine Lake (BML-OSPW) or aged OSPW from Pond 9 experimental reclamation pond (P9-OSPW) modulated toxic potency of the model alkyl-PAH, retene, to early life-stages of Japanese medaka (Oryzias latipes). Embryos were exposed to retene by use of a partition controlled delivery (PCD) system made of polydimethylsiloxane (PDMS) until day of hatch. Incidences of pericardial edema and expression of CYP1A were not significantly greater in larvae exposed only to dissolved organic compounds from either OSPW but were significantly greater in larvae exposed only to retene. Expression of CYP1A and incidences of pericardial edema were significantly greater in larvae co-exposed to retene and 5×equivalent of dissolved organic compounds from BML-OSPW compared to retene alone. However, there was no effect of co-exposure to retene and either a 1×equivalent of dissolved organic compounds from BML-OSPW or 5×equivalent of dissolved organic compounds from P9-OSPW. While there was evidence that exposure to 5×equivalent of dissolved organic compounds from BML-OSPW caused oxidative stress, there was no evidence of this effect in larvae exposed only to retene or co-exposed to retene and a 5×equivalent of dissolved organic compounds from BML-OSPW. These results suggest that oxidative stress is not a mechanism of pericardial edema in early-life stages of Japanese medaka. Relatively fresh OSPW from Base Mine Lake might influence toxicity of alkylated-PAHs to early life stages of fishes but this effect would not be expected to occur at current concentrations of OSPW and is attenuated by aging of OSPW.
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Affiliation(s)
- Hattan A Alharbi
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Garrett Morandi
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada,; Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada; Zoology Department, Center for Integrative Toxicology, Michigan State University, East Lansing, MI, USA; School of Biological Sciences, University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China.
| | - Steve B Wiseman
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada,.
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28
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Baynes RE, Brooks JD, Barlow BM, Riviere JE. Physicochemical determinants of linear alkylbenzene sulfonate (LAS) disposition in skin exposed to aqueous cutting fluid mixtures. Toxicol Ind Health 2016; 18:237-48. [PMID: 14653312 DOI: 10.1191/0748233702th147oa] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Linear alkylbenzene sulfonate (LAS) is added to cutting fluid formulations to enhance the performance of metal machining operations, but this surfactant can cause contact dermatitis in workers involved in these operations. The purpose of this study was to determine how cutting fluid additives influence dermal disposition of 14C-LAS in mineral oil-or polyethylene glycol 200 (PEG)-based mixtures when topically applied to silastic membranes and porcine skin in an in vitroflow-through diffusion cell system. 14C-LAS mixtures were formulated with three commonly used cutting fluid additives; 0 or 2% triazine (TRI), 0 or 5% triethanolamine (TEA), and 0 or 5% sulfurized ricinoleic acid (SRA). LAS absorption was limited to less than a 0.5% dose and the additives in various combinations influenced the physicochemical characteristics of the dosing mixture. LAS was more likely to partition into the stratum corneum (SC) in mineral oil mixtures, and LAS absorption was significantly greater in the complete mixture. TRI enhanced LAS transport, and the presence of SRA decreased LAS critical micelle concentration (CMC) which reduced LAS monomers available for transport. TEA increased mixture viscosity, and this may have negated the apparent enhancing properties of TRI in several mixtures. In summary, physicochemical interactions in these mixtures influenced availability of LAS for absorption and distribution in skin, and could ultimately influence toxicological responses in skin.
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Affiliation(s)
- Ronald E Baynes
- Center for Chemical Toxicology Research and Pharmacokinetics (CCTRP), College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough Street, Raleigh, NC 27606, USA.
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29
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Oral films as breakthrough tools for oral delivery of proteins/peptides. J Control Release 2015; 211:63-73. [DOI: 10.1016/j.jconrel.2015.05.258] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/07/2015] [Accepted: 05/08/2015] [Indexed: 02/07/2023]
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30
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Li Z, Han X, Zhai Y, Lian H, Zhang D, Zhang W, Wang Y, He Z, Liu Z, Sun J. Critical determinant of intestinal permeability and oral bioavailability of pegylated all trans -retinoic acid prodrug-based nanomicelles: Chain length of poly (ethylene glycol) corona. Colloids Surf B Biointerfaces 2015; 130:133-40. [DOI: 10.1016/j.colsurfb.2015.03.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/15/2015] [Accepted: 03/16/2015] [Indexed: 11/25/2022]
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31
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Welling SH, Clemmensen LKH, Buckley ST, Hovgaard L, Brockhoff PB, Refsgaard HHF. In silico modelling of permeation enhancement potency in Caco-2 monolayers based on molecular descriptors and random forest. Eur J Pharm Biopharm 2015; 94:152-9. [PMID: 26004819 DOI: 10.1016/j.ejpb.2015.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 05/14/2015] [Accepted: 05/17/2015] [Indexed: 10/23/2022]
Abstract
Structural traits of permeation enhancers are important determinants of their capacity to promote enhanced drug absorption. Therefore, in order to obtain a better understanding of structure-activity relationships for permeation enhancers, a Quantitative Structural Activity Relationship (QSAR) model has been developed. The random forest-QSAR model was based upon Caco-2 data for 41 surfactant-like permeation enhancers from Whitehead et al. (2008) and molecular descriptors calculated from their structure. The QSAR model was validated by two test-sets: (i) an eleven compound experimental set with Caco-2 data and (ii) nine compounds with Caco-2 data from literature. Feature contributions, a recent developed diagnostic tool, was applied to elucidate the contribution of individual molecular descriptors to the predicted potency. Feature contributions provided easy interpretable suggestions of important structural properties for potent permeation enhancers such as segregation of hydrophilic and lipophilic domains. Focusing on surfactant-like properties, it is possible to model the potency of the complex pharmaceutical excipients, permeation enhancers. For the first time, a QSAR model has been developed for permeation enhancement. The model is a valuable in silico approach for both screening of new permeation enhancers and physicochemical optimisation of surfactant enhancer systems.
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Affiliation(s)
- Søren H Welling
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark; Technical University of Denmark, DTU Compute, 2800 Kgs. Lyngby, Denmark
| | | | - Stephen T Buckley
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark
| | - Lars Hovgaard
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark
| | - Per B Brockhoff
- Technical University of Denmark, DTU Compute, 2800 Kgs. Lyngby, Denmark
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32
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Werner M, Sommer JU. Translocation and Induced Permeability of Random Amphiphilic Copolymers Interacting with Lipid Bilayer Membranes. Biomacromolecules 2014; 16:125-35. [DOI: 10.1021/bm501266x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Marco Werner
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, Institute of Theoretical Physics, 01069 Dresden, Germany
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, Institute of Theoretical Physics, 01069 Dresden, Germany
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33
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A review of advanced oral drug delivery technologies facilitating the protection and absorption of protein and peptide molecules. Biotechnol Adv 2014; 32:1269-1282. [DOI: 10.1016/j.biotechadv.2014.07.006] [Citation(s) in RCA: 197] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/21/2014] [Accepted: 07/28/2014] [Indexed: 12/26/2022]
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34
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Interfacial and Solution Behavior of Amphiphilic Drug and Counterion-Coupled Gemini (COCOGEM) Surfactants. J SURFACTANTS DETERG 2014. [DOI: 10.1007/s11743-014-1643-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Jiang L, Shen C, Long X, Zhang G, Meng Q. Rhamnolipids elicit the same cytotoxic sensitivity between cancer cell and normal cell by reducing surface tension of culture medium. Appl Microbiol Biotechnol 2014; 98:10187-96. [PMID: 25231070 DOI: 10.1007/s00253-014-6065-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 08/27/2014] [Accepted: 08/29/2014] [Indexed: 01/20/2023]
Abstract
Biosurfactant rhamnolipids have been claimed to show biological activities of inhibiting the proliferation of cancer cells. In this study, the cytotoxicity of rhamnolipids was examined on four cancer cells (HepG2, Caco-2, Hela, MCF-7 cells) and two normal cells (HK-2 cell, primary hepatocyte). Interestingly, both cancer cells and normal cells exhibited similar sensitivities to the addition of rhamnolipids in culture medium, and the cytotoxicity was largely attenuated by the presence of fetal bovine serum (FBS) in culture medium. In correlation of the mono-/di-rhamnolipid cytotoxicity with the surface tension of culture medium, it was found that rhamnolipids triggered cytotoxicity whenever the surface tension of culture medium decreased below 41 mN/m irrespective of the FBS content in culture medium, cell line, or rhamnolipid congener. Similarly, each chemical surfactant (Tween-80, sodium dodecyl sulfate, and sodium dodecyl benzene sulfonate) could cause cytotoxicity on HepG2 cells whenever its addition made the surface tension under 41 mN/m in culture medium with or without the presence of FBS. It seems that rhamnolipids, like chemical surfactants, exhibited cytotoxicity by reducing the surface tension of culture medium rather than by changing its specific molecular structure, which had no selection on tumor cells. This study could offer helps to correct the misleading biological activity of rhamnolipids and to avoid the possible large wastes of time and expenses on developing the applications in antitumor drugs.
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Affiliation(s)
- Lifang Jiang
- Department of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, Zhejiang, People's Republic of China
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36
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Wang D, Gao Y, Lin Z, Yao Z, Zhang W. The joint effects on Photobacterium phosphoreum of metal oxide nanoparticles and their most likely coexisting chemicals in the environment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 154:200-206. [PMID: 24911590 DOI: 10.1016/j.aquatox.2014.05.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 05/15/2014] [Accepted: 05/19/2014] [Indexed: 06/03/2023]
Abstract
Metal oxide nanoparticles (NPs) have been used increasingly and are likely to accumulate in natural water bodies, where they encounter and interact with other environmental chemicals. These interactions result in joint effects on biological systems and the environment. However, compared with the intensive research examining the toxicities of individual NPs, the toxicities of NP mixtures remain relatively unexplored. In this work, we studied the joint effects of NPs and their most likely coexisting chemicals in the environment, including NPs with different compositions, humic substances, and surfactants. Our results indicate that the joint effects of NP mixtures were usually simple addition, which is commonly adopted in real risk assessment. However, the joint effects obtained for mixtures that contained ZnO were exclusively associated with antagonism. In addition, the mixtures of NPs and surfactants resulted in complex joint effects, i.e., antagonistic, additive, and synergistic effects were found for the mixtures with ZnO, NiO, and Fe-oxide, respectively. Our study suggests that the assessments of the ecological risk of NPs, particularly ZnO NPs, should consider the impact of their coexisting chemicals in the environment.
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Affiliation(s)
- Dali Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China>
| | - Ya Gao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China>
| | - Zhifen Lin
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China>; Collaborative Innovation Center for Regional Environmental Quality, Beijing, China.
| | - Zhifeng Yao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China>
| | - Weixian Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China>
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37
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Chen Y, Geurts M, Sjollema SB, Kramer NI, Hermens JLM, Droge STJ. Acute toxicity of the cationic surfactant C12-benzalkonium in different bioassays: how test design affects bioavailability and effect concentrations. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2014; 33:606-15. [PMID: 24273010 DOI: 10.1002/etc.2465] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/25/2013] [Accepted: 11/14/2013] [Indexed: 05/19/2023]
Abstract
Using an ion-exchange-based solid-phase microextraction (SPME) method, the freely dissolved concentrations of C12-benzalkonium were measured in different toxicity assays, including 1) immobilization of Daphnia magna in the presence or absence of dissolved humic acid; 2) mortality of Lumbriculus variegatus in the presence or absence of a suspension of Organisation for Economic Co-Operation and Development (OECD) sediment; 3) photosystem II inhibition of green algae Chlorella vulgaris; and 4) viability of in vitro rainbow trout gill cell line (RTgill-W1) in the presence or absence of serum proteins. Furthermore, the loss from chemical adsorption to the different test vessels used in these tests was also determined. The C12-benzalkonium sorption isotherms to the different sorbent phases were established as well. Our results show that the freely dissolved concentration is a better indicator of the actual exposure concentration than the nominal or total concentration in most test assays. Daphnia was the most sensitive species to C12-benzalkonium. The acute Daphnia and Lumbriculus tests both showed no enhanced toxicity from possible ingestion of sorbed C12-benzalkonium in comparison with water-only exposure, which is in accordance with the equilibrium partitioning theory. Moreover, the present study demonstrates that commonly used sorbent phases can strongly affect bioavailability and observed effect concentrations for C12-benzalkonium. Even stronger effects of decreased actual exposure concentrations resulting from sorption to test vessels, cells, and sorbent phases can be expected for more hydrophobic cationic surfactants.
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Affiliation(s)
- Yi Chen
- Institute for Risk Assessment Sciences, Utrecht University, The Netherlands
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38
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Vaidyanathan S, Orr BG, Banaszak Holl MM. Detergent induction of HEK 293A cell membrane permeability measured under quiescent and superfusion conditions using whole cell patch clamp. J Phys Chem B 2014; 118:2112-23. [PMID: 24548291 PMCID: PMC3983356 DOI: 10.1021/jp4124315] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Detergents have several biological
applications but present cytotoxicity
concerns, since they can solubilize cell membranes. Using the IonFlux
16, an ensemble whole cell planar patch clamp, we observed that anionic
sodium dodecyl sulfate (SDS), cationic cetyltrimethylammonium bromide
(CTAB), and cationic, fluorescent octadecyl rhodamine B (ORB) increased
the membrane permeability of cells substantially within a second of
exposure, under superfusion conditions. Increased permeability was
irreversible for 15 min. At subsolubilizing detergent concentrations,
patched cells showed increased membrane currents that reached a steady
state and were intact when imaged using fluorescence microscopy. SDS
solubilized cells at concentrations of 2 mM (2× CMC), while CTAB
did not solubilize cells even at concentrations of 10 mM (1000×
CMC). The relative activity for plasma membrane current induction
was 1:20:14 for SDS, CTAB, and ORB, respectively. Under quiescent
conditions, the relative ratio of lipid to detergent in cell membranes
at the onset of membrane permeability was 1:7:5 for SDS, CTAB, and
ORB, respectively. The partition constants (K) for
SDS, CTAB, and ORB were 23000, 55000, and 39000 M–1, respectively. Combining the whole cell patch clamp data and XTT
viability data, SDS ≤ 0.2 mM and CTAB and ORB ≤ 1 mM
induced cell membrane permeability without causing acute toxicity.
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Affiliation(s)
- Sriram Vaidyanathan
- Departments of Biomedical Engineering, ‡Chemistry, and §Physics, ∥the Program in Applied Physics, and ⊥the Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan , Ann Arbor, Michigan 48109, United States
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39
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Jiang L, Long X, Meng Q. Rhamnolipids enhance epithelial permeability in Caco-2 monolayers. Int J Pharm 2013; 446:130-5. [DOI: 10.1016/j.ijpharm.2013.02.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/28/2013] [Accepted: 02/03/2013] [Indexed: 01/13/2023]
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40
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Nogueira DR, Mitjans M, Busquets MA, Pérez L, Vinardell MP. Phospholipid bilayer-perturbing properties underlying lysis induced by pH-sensitive cationic lysine-based surfactants in biomembranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11687-11698. [PMID: 22816661 DOI: 10.1021/la300626y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Amino acid-based surfactants constitute an important class of natural surface-active biomolecules with an unpredictable number of industrial applications. To gain a better mechanistic understanding of surfactant-induced membrane destabilization, we assessed the phospholipid bilayer-perturbing properties of new cationic lysine-based surfactants. We used erythrocytes as biomembrane models to study the hemolytic activity of surfactants and their effects on cells' osmotic resistance and morphology, as well as on membrane fluidity and membrane protein profile with varying pH. The antihemolytic capacity of amphiphiles correlated negatively with the length of the alkyl chain. Anisotropy measurements showed that the pH-sensitive surfactants, with the positive charge on the α-amino group of lysine, significantly increased membrane fluidity at acidic conditions. SDS-PAGE analysis revealed that surfactants induced significant degradation of membrane proteins in hypo-osmotic medium and at pH 5.4. By scanning electron microscopy examinations, we corroborated the interaction of surfactants with lipid bilayer. We found that varying the surfactant chemical structure is a way to modulate the positioning of the molecule inside bilayer and, thus, the overall effect on the membrane. Our work showed that pH-sensitive lysine-based surfactants significantly disturb the lipid bilayer of biomembranes especially at acidic conditions, which suggests that these compounds are promising as a new class of multifunctional bioactive excipients for active intracellular drug delivery.
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Affiliation(s)
- Daniele Rubert Nogueira
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, E-08028, Barcelona, Spain
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41
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Hinow P, Radunskaya A, Tucker I, Yang L. Kinetics of bile salt binding to liposomes revealed by carboxyfluorescein release and mathematical modeling. J Liposome Res 2012; 22:237-44. [DOI: 10.3109/08982104.2012.675338] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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42
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Thakur R, Das A, Chakraborty A. Photophysical and photodynamical study of ellipticine: an anticancer drug molecule in bile salt modulated in vitro created liposome. Phys Chem Chem Phys 2012; 14:15369-78. [DOI: 10.1039/c2cp41708a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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43
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Glycine and its N-methylated analogues cause pH-dependent membrane damage to enterotoxigenic Escherichia coli. Amino Acids 2011; 43:245-53. [PMID: 21912862 DOI: 10.1007/s00726-011-1068-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 08/25/2011] [Indexed: 10/17/2022]
Abstract
The current study first investigates the emulsifying potential of glycine and its N-methylated derivatives N-methylglycine (sarcosine), N,N-dimethylglycine (DMG) and N,N,N-trimethylglycine (betaine) under varying pH conditions. Subsequently, the effect of these test compounds on the membrane integrity of enterotoxigenic Escherichia coli (ETEC) was evaluated. Oil in water emulsions containing each compound show that DMG is a more potent enhancer of emulsification than glycine, sarcosine and betaine under the conditions tested. Flow cytometry was used to investigate whether the emulsifying potential is associated with an effect on ETEC membrane integrity. The bacteria were exposed to each of the test compounds under varying pH conditions and membrane integrity was assessed using the LIVE/DEAD BacLight kit. Results show a membrane deteriorating effect caused by glycine, sarcosine and DMG, but not by betaine. This effect is pH- and time-dependent and has an apparent threshold at pH 9.0. Conventional plate counts confirmed concomitant changes in culturability of the membrane comprised bacteria.
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44
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Gupta C, Daechsel AK, Chauhan A. Interaction of ionic surfactants with cornea-mimicking anionic liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:10840-10846. [PMID: 21786813 DOI: 10.1021/la201438s] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The interaction of surface-active molecules with lipid bilayers is ubiquitous both in biological systems and also in several technological applications. Here we explore the interaction of ionic surfactants with liposomes whose composition mimics the ocular epithelia. In this study, liposomes with a composition mimicking ocular epithelia are loaded with calcein dye above the self-quenching concentration. The liposomes are then exposed to surfactants, and the rate of dye leaked from the liposomes due to the interaction of surfactants is measured. Both cationic and anionic surfactants at various concentrations and ionic strengths are explored. Results show that the liposome bilayer permeability to the dye increases on exposure to the surfactants, leading to the release of the dye trapped in the core. However, the dye release stops after a finite time, suggesting a transient increase in permeability followed by healing. The leakage profiles exhibit two different timescales for the cationic surfactant but only one timescale for the anionic surfactant. The total dye leakage increases with surfactant concentration, and at a given concentration, the dye leakage is significantly higher for the cationic surfactants. The timescale for the healing decreases with increasing surfactant concentration, and increasing ionic strength increases the dye leakage for the anionic surfactant. These results show that the surfactant binding to the lipid bilayer increases the permeability while the bilayers heal likely because of the surfactant jump from the outer to the inner leaflet and/or rearrangement into tighter aggregates.
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Affiliation(s)
- Chhavi Gupta
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, USA
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45
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Csáki KF. Synthetic surfactant food additives can cause intestinal barrier dysfunction. Med Hypotheses 2011; 76:676-81. [DOI: 10.1016/j.mehy.2011.01.030] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Revised: 01/12/2011] [Accepted: 01/14/2011] [Indexed: 11/30/2022]
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46
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Cai Y, Liao X, Liang X, Ding Y, Sun J, Zhang D. Induction of hypocrellin production by Triton X-100 under submerged fermentation with Shiraia sp. SUPER-H168. N Biotechnol 2011; 28:588-92. [PMID: 21324385 DOI: 10.1016/j.nbt.2011.02.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 12/26/2010] [Accepted: 02/05/2011] [Indexed: 11/19/2022]
Abstract
Hypocrellins are important photodynamic therapy compounds for cancer disease. The effect of surfactants on hypocrellin production of Shiraia sp. SUPER-H168 was evaluated under submerged fermentation condition. The production of hypocrellins could reach 780.6 mg/l with the addition of Triton X-100, confirmed by color reaction, high performance liquid chromatography, electrospray ionization mass spectrometry and nuclear magnetic resonance experiments. According to our observation, treatment of the culture at the beginning of the fermentation was most effective, and the yield of hypocrellins was much lower with the addition of Triton X-100 during the log phase and stationary phase. Shiraia sp. SUPER-H168 could not produce hypocrellin with the addition of other tested surfactants, such as Tween 40, Triton X-114 and SDS. The experimental results indicated that Shiraia sp. SUPER-H168 could not produce hypocrellins without Triton X-100 under submerged fermentation condition.
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Affiliation(s)
- Yujie Cai
- Key Laboratory of Industrial Biotechnology, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
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47
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Almeida JAS, Marques EF, Jurado AS, Pais AACC. The effect of cationic gemini surfactants upon lipid membranes. An experimental and molecular dynamics simulation study. Phys Chem Chem Phys 2010; 12:14462-76. [DOI: 10.1039/c0cp00950d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Simovic S, Heard P, Hui H, Song Y, Peddie F, Davey AK, Lewis A, Rades T, Prestidge CA. Dry Hybrid Lipid−Silica Microcapsules Engineered from Submicron Lipid Droplets and Nanoparticles as a Novel Delivery System for Poorly Soluble Drugs. Mol Pharm 2009; 6:861-72. [DOI: 10.1021/mp900063t] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Spomenka Simovic
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Peter Heard
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - He Hui
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Yunmei Song
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Frank Peddie
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Andrew K. Davey
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Andrew Lewis
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Thomas Rades
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
| | - Clive A. Prestidge
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, Interface Analysis Centre, University of Bristol, BS2 8BS, U.K., Sansom Institute, University of South Australia, City East Campus, 5000 Adelaide, South Australia, Australia, Division of IT, Engineering and the Environment, University of South Australia, Mawson Lakes Campus, 5095 Mawson Lakes, Australia, and School of Pharmacy, University of Otago, P.O. Box 913, Dunedin 9054, New Zealand
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49
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Yang L, Zhang H, Mikov M, Tucker IG. Physicochemical and Biological Characterization of Monoketocholic Acid, a Novel Permeability Enhancer. Mol Pharm 2009; 6:448-56. [DOI: 10.1021/mp800143w] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lin Yang
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Hu Zhang
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Momir Mikov
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Ian G. Tucker
- School of Pharmacy, University of Otago, Dunedin, New Zealand
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50
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Tsutsumi K, Li SK, Hymas RV, Teng CL, Tillman LG, Hardee GE, Higuchi WI, Ho NFH. Systematic studies on the paracellular permeation of model permeants and oligonucleotides in the rat small intestine with chenodeoxycholate as enhancer. J Pharm Sci 2008; 97:350-67. [PMID: 17847071 DOI: 10.1002/jps.21093] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The objective of this study was to mechanistically and quantitatively analyze chenodeoxycholate-enhanced paracellular transport of polar permeants and oligonucleotides in the rat jejunum and ileum. Micellar chenodeoxycholate solutions were used to perturbate the tight junctions. Supporting studies included assessment of the aqueous boundary layer (ABL) with ABL-controlled permeants, measurements of the permeability coefficients and fluxes of the bile acid in dilute and micellar concentrations, and determinations of pore sizes with paracellular probes (urea, mannitol, and raffinose). The paracellular permeability coefficients, P(para), of two model oligonucleotides (ON3 and ON6; 12- and 24-mers with 11 and 23 negative charges, respectively) were determined. The enhanced permeabilities paralleled the increased fluxes of micellar bile salt solutions into mesenteric blood and the opening of the tight junctions as compared to controls. As the pore radius increased from 0.7 nm to a maximum of 2.4 nm in the jejunum and ileum, the absorption of ON3 was enhanced up to sixfold in the jejunum and about 14-fold in the ileum with P(para) values between 0.5 x 10(-6) and 6 x 10(-6) cm/s, whereas ON6 was enhanced up to twofold in the jejunum and fivefold in the ileum with permeabilities between 0.3 x 10(-6) and 2 x 10(-6) cm/s.
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Affiliation(s)
- Keiko Tsutsumi
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
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