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Kim GL, Song JG, Han HK. Enhanced Oral Efficacy of Semaglutide via an Ionic Nanocomplex with Organometallic Phyllosilicate in Type 2 Diabetic Rats. Pharmaceutics 2024; 16:886. [PMID: 39065583 PMCID: PMC11280289 DOI: 10.3390/pharmaceutics16070886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
This study aimed to develop an effective oral formulation of semaglutide, a glucagon-like peptide-1 receptor agonist, using an organometallic phyllosilicate-based colonic delivery system. The core nanocomplex (AMP-Sema) of 3-aminopropyl-functionalized magnesium phyllosilicate (AMP) and semaglutide was prepared via electrostatic interactions. Subsequently, AMP-Sema was coated with a polymer showing pH-dependent solubility (Eudragit® S100) for preferential colonic delivery. The surface-coated nanoparticles (EAMP-Sema) showed a narrow size distribution, and the encapsulated semaglutide maintained its conformational stability. The pH-dependent drug release property of EAMP-Sema yielded around 20% and 62% drug release at pH 1.2 and 7.4, respectively. The nanoparticles exhibited significantly decreased size and surface charge at pH 7.4, which indicated the pH-dependent dissolution of the coating layer. Furthermore, EAMP-Sema effectively improved the membrane permeability and metabolic stability of semaglutide in the gastrointestinal tract. It protected the encapsulated drugs from proteolysis in simulated intestinal fluids and increased drug transport by 2.5-fold in Caco-2 cells. Consequently, orally administered EAMP-Sema (equivalent to 8 mg/kg of semaglutide) showed significant therapeutic benefits, yielding effective glycemic control and weight loss in high-fat diet/streptozotocin (40 mg/kg)-induced type 2 diabetic rats. These results demonstrate that EAMP-Sema could improve the efficacy of orally administered semaglutide by enhancing the GI stability and cellular uptake of protein drugs.
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Affiliation(s)
| | | | - Hyo-Kyung Han
- College of Pharmacy, Dongguk University-Seoul, Dongguk-ro-32, Ilsan-Donggu, Goyang 10326, Republic of Korea
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Song JG, Kim DH, Han HK. Fabrication and Evaluation of a pH-Responsive Nanocomposite-Based Colonic Delivery System for Improving the Oral Efficacy of Liraglutide. Int J Nanomedicine 2023; 18:3937-3949. [PMID: 37489139 PMCID: PMC10363350 DOI: 10.2147/ijn.s413515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/29/2023] [Indexed: 07/26/2023] Open
Abstract
Purpose Oral administration of liraglutide, a protein drug, suffers from low intestinal absorption and instability in the gastrointestinal tract, resulting in low bioavailability. The present study aimed to develop a pH-responsive nanocomposite based-colonic delivery system to improve the oral efficacy of liraglutide. Methods Nanocomplex (AC-Lira) between aminoclay and liraglutide was prepared by a spontaneous self-assembly. After surface charge reversal using citric acid, AC-Lira was coated with poly(methacrylic acid-co-methyl methacrylate) (1:2). The fabricated nanocomplex underwent various in vitro studies to characterize its physicochemical properties, drug release, and cellular transport. In vivo efficacy studies were also conducted using streptozotocin-induced diabetic rats. Results Both uncoated (AC-Lira) and coated nanocomplex (EAC-Lira) achieved high entrapment efficiency (> 90%) and showed a narrow size distribution. While exhibiting low drug release at pH 1.2 (approximately 30%), EAC-Lira achieved rapid and extensive drug release (~90%) at pH 7.4, displaying pH-dependent drug release. EAC-Lira showed significant size reduction and surface charge reversal during dissolution at pH 7.4, probably due to the removal of the outer coating layer. Furthermore, EAC-Lira was effective at protecting the entrapped proteins against enzymatic degradation. EAC-Lira also increased the membrane transport of liraglutide by 3.5 folds in Caco-2 cells. Owing to enhanced membrane transport and metabolic stability, EAC-Lira improved in vivo efficacy of orally administered liraglutide, significantly reducing blood glucose concentrations, intake of food and water, and body weight in type 2 diabetes rats. Conclusion These results suggest EAC-Lira is a promising approach to improving the oral bioavailability and efficacy of liraglutide.
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Affiliation(s)
- Jae Geun Song
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Korea
| | - Da Hyun Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Korea
| | - Hyo-Kyung Han
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Korea
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Kauser S, Mughees M, Swami S, Wajid S. Pre-clinical toxicity assessment of Artemisia absinthium extract-loaded polymeric nanoparticles associated with their oral administration. Front Pharmacol 2023; 14:1196842. [PMID: 37492095 PMCID: PMC10363985 DOI: 10.3389/fphar.2023.1196842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
Background: This study was designed to quantify the composition of the ethanolic extract of Artemisia absinthium through gas chromatography-mass spectrometry analysis and ensure in vivo safety of A. absinthium extract-loaded polymeric nanoparticles (ANPs) before considering their application as a drug carrier via the oral route. Methods: We synthesized N-isopropylacrylamide, N-vinyl pyrrolidone, and acrylic acid crosslinked polymeric NPs by free-radical polymerization reaction and characterized them by Fourier-transform infrared spectroscopy, transmission electron microscopy, and dynamic light scattering spectroscopy. Different concentrations of extract (50 mg/kg, 300 mg/kg, and 2,000 mg/kg body weight) were encapsulated into the hydrophobic core of polymeric micelles for the assessment of acute oral toxicity and their LD50 cut-off value as per the test procedure of OECD guideline 423. Orally administered female Wistar rats were observed for general appearance, behavioral changes, and mortality for the first 30 min, 4 h, 24 h, and then, daily once for 14 days. Result: ANPs at the dose of 300 mg/kg body weight were used as an initial dose, and rats showed few short-lived signs of toxicity, with few histological alterations in the kidney and intestine. Based on these observations, the next set of rats were treated at a lower dose of 50 mg/kg and a higher dose of 2,000 mg/kg ANPs. Rats administered with 50 mg/kg ANPs remained normal throughout the study with insignificant histological disintegration; however, rats treated at 2,000 mg/kg ANPs showed some signs of toxicity followed by mortality among all three rats within 24-36 h, affecting the intestine, liver, and kidney. There were no significant differences in hematological and biochemical parameters among rats treated at 50 mg/kg and 300 mg/kg ANPs. Conclusion: We conclude that the LD50 cut-off value of these ANPs will be 500 mg/kg extract loaded in polymeric NPs.
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Fathy MM, Hassan AA, Elsayed AA, Fahmy HM. Controlled release of silica-coated insulin-loaded chitosan nanoparticles as a promising oral administration system. BMC Pharmacol Toxicol 2023; 24:21. [PMID: 36998008 PMCID: PMC10064556 DOI: 10.1186/s40360-023-00662-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 03/10/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Oral insulin administration has recently become one of the most exciting research subjects. Different approaches have been carried out to get an effective oral insulin delivery system using nanotechnology. The development of a delivery system that overcomes the difficulties of oral insulin administration, achieving high stability and minimal side effects, is still an urgent need. Therefore, this study is considered one of the efforts to design a new prospective drug delivery nano-composite (silica-coated chitosan-dextran sulfate nanoparticles). METHODS Chitosan-dextran sulfate nanoparticles (CS-DS NPs) were prepared via a complex coacervation method and then coated with silica. Uncoated and silica-coated CS-DS NPs were physically characterized via different techniques. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, and atomic force microscopy (AFM) have been used to investigate the chemical elements, size, morphology, and surface properties of the prepared formulations. Differential scanning calorimetry (DSC) to assess the thermal properties of formed nano-formulations. Fourier transform infrared (FT-IR) spectroscopy investigated the silica coat and chitosan interaction. The encapsulation efficiency was evaluated using high-performance liquid chromatography (HPLC) analysis. The insulin release profile of nano-formulations was performed with and without silica coat at two different pHs (5.5,7), nearly simulating the environment of the gastrointestinal tract (GIT). RESULTS The silica-coated CS-DS NPs revealed interesting physicochemical properties exemplified by suitable core particle size obtained by TEM images (145.31 ± 33.15 nm), hydrodynamic diameter (210 ± 21 nm), high stability indicated by their zeta potential value (-32 ± 3.2 mV), and adequate surface roughness assessed by AFM. The encapsulation efficiency of insulin-loaded chitosan nanoparticles (ICN) was (66.5%) higher than that of insulin-chitosan complex nanoparticles (ICCN). The silica-coated ICN demonstrated a controlled insulin release profile at pHs (5.5 and 7) compared with uncoated ICN. CONCLUSION The silica-coated ICN can be an efficient candidate as a desired oral delivery system, overcoming the common obstacles of peptides and proteins delivery and achieving high stability and controlled release for further applications.
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Affiliation(s)
- Mohamed M Fathy
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Asmaa A Hassan
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Anwar A Elsayed
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Heba M Fahmy
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
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Huang YC, Chen BH. A Comparative Study on Improving Streptozotocin-Induced Type 2 Diabetes in Rats by Hydrosol, Extract and Nanoemulsion Prepared from Cinnamon Leaves. Antioxidants (Basel) 2022; 12:29. [PMID: 36670891 PMCID: PMC9855112 DOI: 10.3390/antiox12010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/12/2022] [Accepted: 12/17/2022] [Indexed: 12/28/2022] Open
Abstract
Cinnamomoum osmophloeum Kanehira (C. osmophloeum) contains various biologically active antioxidant compounds such as flavonoids, phenolic acids and cinnamaldehyde. Type 2 diabetes mellitus is a chronic disease of metabolic abnormality caused by insulin deficiency or resistance. The objectives of this study were to analyze various bioactive compounds in C. osmophloeum leaves by ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and compare the effects of hydrosol, extract and nanoemulsion prepared from C. osmophloeum leaves on improving type 2 diabetes in rats. Our results show that a total of 15 bioactive compounds in C. osmophloeum leaves, including quercetin, quercetin-3-O-galactoside, quercetin-3-O-glucoside, rutin, caffeic acid, benzoic acid, 5-O-caffeoylquinic acid, kaempferol 3-β-D-glucopyranoside, trans-cinnamic acid, coumarin, cinnamyl alcohol, p-coumaric acid, eugenol, kaempferol and cinnamaldehyde, were separated within 14 min for subsequent identification and quantitation by UPLC-MS/MS. The nanoemulsion was successfully prepared by mixing C. osmophloeum leaf extract, soybean oil, lecithin, Tween 80 and deionized water in an appropriate proportion with a mean particle size, polydispersity index, zeta potential and encapsulation efficiency of 36.58 nm, 0.222, -42.6 mV and 91.22%, respectively, while a high storage and heating stability was obtained. The animal experiment results reveal that the high-dose nanoemulsion was the most effective in reducing both fasting blood glucose and oral glucose tolerance test value, followed by low-dose nanoemulsion, high-dose extract, low-dose extract and leaf powder in hydrosol. A similar trend was shown in reducing serum insulin and the homeostatic model assessment of insulin resistance index. In addition, the contents of serum biochemical parameters, including total cholesterol, triglyceride, aspartate aminotransferase, alanine aminotransferase, uric acid, urea nitrogen and creatinine, were reduced, with the high-dose nanoemulsion showing the most pronounced effect. Collectively, the high-dose nanoemulsion may possess great potential to be developed into a hypoglycemic health food or botanic drug.
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Affiliation(s)
- Yu-Chi Huang
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan
- Department of Nutrition, China Medical University, Taichung 40402, Taiwan
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De Novo Transcriptome Assembly and Analysis of Longevity Genes Using Subterranean Termite ( Reticulitermes chinensis) Castes. Int J Mol Sci 2022; 23:ijms232113660. [PMID: 36362447 PMCID: PMC9657995 DOI: 10.3390/ijms232113660] [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: 08/05/2022] [Revised: 10/20/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
The longevity phenomenon is entirely controlled by the insulin signaling pathway (IIS-pathway). Both vertebrates and invertebrates have IIS-pathways that are comparable to one another, though no one has previously described de novo transcriptome assembly of IIS-pathway-associated genes in termites. In this research, we analyzed the transcriptomes of both reproductive (primary kings “PK” and queens “PQ”, secondary worker reproductive kings “SWRK” and queens “SWRQ”) and non-reproductive (male “WM” and female “WF” workers) castes of the subterranean termite Reticulitermes chinensis. The goal was to identify the genes responsible for longevity in the reproductive and non-reproductive castes. Through transcriptome analysis, we annotated 103,589,264 sequence reads and 184,436 (7G) unigenes were assembled, GC performance was measured at 43.02%, and 64,046 sequences were reported as CDs sequences. Of which 35 IIS-pathway-associated genes were identified, among 35 genes, we focused on the phosphoinositide-dependent kinase-1 (Pdk1), protein kinase B2 (akt2-a), tuberous sclerosis-2 (Tsc2), mammalian target of rapamycin (mTOR), eukaryotic translation initiation factor 4E (EIF4E) and ribosomal protein S6 (RPS6) genes. Previously these genes (Pdk1, akt2-a, mTOR, EIF4E, and RPS6) were investigated in various organisms, that regulate physiological effects, growth factors, protein translation, cell survival, proliferation, protein synthesis, cell metabolism and survival, autophagy, fecundity rate, egg size, and follicle number, although the critical reason for longevity is still unclear in the termite castes. However, based on transcriptome profiling, the IIS-pathway-associated genes could prolong the reproductive caste lifespan and health span. Therefore, the transcriptomic shreds of evidence related to IIS-pathway genes provide new insights into the maintenance and relationships between biomolecular homeostasis and remarkable longevity. Finally, we propose a strategy for future research to decrypt the hidden costs associated with termite aging in reproductive and non-reproductive castes.
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Sabbagh F, Muhamad II, Niazmand R, Dikshit PK, Kim BS. Recent progress in polymeric non-invasive insulin delivery. Int J Biol Macromol 2022; 203:222-243. [PMID: 35101478 DOI: 10.1016/j.ijbiomac.2022.01.134] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/04/2022] [Accepted: 01/20/2022] [Indexed: 12/12/2022]
Abstract
The design of carriers for insulin delivery has recently attracted major research attentions in the biomedical field. In general, the release of drug from polymers is driven via a variety of polymers. Several mechanisms such as matrix release, leaching of drug, swelling, and diffusion are usually adopted for the release of drug through polymers. Insulin is one of the most predominant therapeutic drugs for the treatment of both diabetes mellitus; type-I (insulin-dependent) and type II (insulin-independent). Currently, insulin is administered subcutaneously, which makes the patient feel discomfort, pain, hyperinsulinemia, allergic responses, lipodystrophy surrounding the injection area, and occurrence of miscarried glycemic control. Therefore, significant research interest has been focused on designing and developing new insulin delivery technologies to control blood glucose levels and time, which can enhance the patient compliance simultaneously through alternative routes as non-invasive insulin delivery. The aim of this review is to emphasize various non-invasive insulin delivery mechanisms including oral, transdermal, rectal, vaginal, ocular, and nasal. In addition, this review highlights different smart stimuli-responsive insulin delivery systems including glucose, pH, enzymes, near-infrared, ultrasound, magnetic and electric fields, and the application of various polymers as insulin carriers. Finally, the advantages, limitations, and the effect of each non-invasive route on insulin delivery are discussed in detail.
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Affiliation(s)
- Farzaneh Sabbagh
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Ida Idayu Muhamad
- Universiti Teknologi Malaysia, Department of Chemical Engineering, 81310, Johor, Malaysia
| | - Razieh Niazmand
- Department of Food Chemistry, Research Institute of Food Science and Technology, Mashhad, Iran
| | - Pritam Kumar Dikshit
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur 522 502, Andhra Pradesh, India
| | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea.
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Ding Z, Cheng R, Yang Y, Zhao Y, Ge W, Sun X, Xu X, Wang S, Zhang J. The succinoglycan riclin restores beta cell function through the regulation of macrophages on Th1 and Th2 differentiation in type 1 diabetic mice. Food Funct 2021; 12:11611-11624. [PMID: 34714317 DOI: 10.1039/d1fo02315b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Bacterial succinoglycan is found suitable as a viscosifying and emulsifying agent in the food industry. Riclin is a de-succinyl succinoglycan from an Agrobacterium isolate. Our previous study has revealed that riclin exerts special anti-inflammatory effects in vitro and in vivo. This study aims to determine the effects of riclin on preventing against immunological injury of beta cells in a type 1 diabetic model. We found that orally riclin effectively restores beta-cell function and improves the complications of streptozotocin (STZ)-induced diabetes. Riclin also reduces STZ-induced liver and kidney damage, and balances the inappropriate ratio of T helper type 1 cell (Th1)/type 2 cell (Th2) in the spleen and pancreatic draining lymph nodes of the STZ-induced diabetic mice. In a co-culture system with the islet β cell MIN6 and macrophage RAW 264.7, riclin reduces the levels of IFN-γ and IL-1β, protecting against STZ-caused MIN6 cell injury. We identified that riclin specifically binds to the membrane of macrophages and regulates the ratio of IL-10 and IL-12, thereby inhibiting the macrophage-mediated polarization of Th1 cells and promoting the differentiation of Th2 cells, which depends on the dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) receptor. Moreover, orally riclin significantly decreases the incidence of STZ-induced hyperglycemia (7.1% in riclin vs. 92.9% in STZ), and prevents autoimmune diabetes in non-obese diabetic (NOD) mice, with 87.5% of mice free of diabetes compared to 46.6% of the control mice. These results suggest that riclin has potential to be a functional food to prevent and improve autoimmune diabetes and related diseases.
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Affiliation(s)
- Zhao Ding
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Rui Cheng
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Xiaqing Sun
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Shiming Wang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China.
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Ahmed HM, Roy A, Wahab M, Ahmed M, Othman-Qadir G, Elesawy BH, Khandaker MU, Islam MN, Emran TB. Applications of Nanomaterials in Agrifood and Pharmaceutical Industry. JOURNAL OF NANOMATERIALS 2021; 2021:1-10. [DOI: 10.1155/2021/1472096] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Nanotechnology recently emerged among the most exciting science-related innovations. Nanotechnology-produced metal nanoparticles got a lot of attention. This is emerging as a rapidly developing field due to its effective applications that targeted the manufacturing of new materials at the nanoscale level. There is considerable interest in the application of nanomaterials in many areas of industry including agrifood and biomedical products. In the agrifood area, nanomaterials have benefits in diverse areas which include fertilizers, herbicides, pesticides, sensors, and quality stimulants, among other food processing, food packaging, and nutraceuticals to improve nutritional value. These applications in agriculture result in enhanced quality and crop yield, reduction in pollution caused by various chemicals, etc. In the pharmaceutical area, nanomaterials are claimed to ameliorate drug safety and efficacy, as well as bioavailability. They are utilized for targeting various drugs to a specific location in the body. However, there are also concerns that some nanoparticles may have adverse effects on human health. These include titanium dioxide, copper oxides, and other nanomaterials which lead to liver damage, skin damage, lung damage, and various other human health-related problems. This review is aimed at presenting a briefing on the state of the art in the application of nanotechnology in food and human nutrition and drug administration, consumer attitudes, and their challenges and opportunities with future perspectives.
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Affiliation(s)
- Hiwa M. Ahmed
- Sulaimani Polytechnic University, Slemani, 46001 Kurdistan Region, Iraq
| | - Arpita Roy
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
| | - Muhammad Wahab
- Food Science and Quality Control Department, College of Agricultural Engineering Science, University of Sulaimani, Slemani, Kurdistan Region, Iraq
| | - Mohammed Ahmed
- Department of Horticulture, University of Raparin, Ranya, Kurdistan Region, Iraq
| | - Gashaw Othman-Qadir
- Newcastle Center for Natural Therapy, Slemani, Ranya, 46012 Kurdistan Region, Iraq
| | - Basem H. Elesawy
- Department of Pathology, College of Medicine, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mayeen Uddin Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Selangor, Malaysia
| | - Mohammad Nazmul Islam
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
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Ruiz-Picazo A, Lozoya-Agullo I, González-Álvarez I, Bermejo M, González-Álvarez M. Effect of excipients on oral absorption process according to the different gastrointestinal segments. Expert Opin Drug Deliv 2020; 18:1005-1024. [PMID: 32842776 DOI: 10.1080/17425247.2020.1813108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Excipients are necessary to develop oral dosage forms of any Active Pharmaceutical Ingredient (API). Traditionally, excipients have been considered inactive and inert substances, but, over the years, numerous studies have contradicted this belief. This review focuses on the effect of excipients on the physiological variables affecting oral absorption along the different segments of the gastrointestinal tract. The effect of excipients on the segmental absorption variables are illustrated with examples to help understand the complexity of predicting their in vivo effects. AREAS COVERED The effects of excipients on disintegration, solubility and dissolution, transit time, and absorption are analyzed in the context of the different gastrointestinal segments and the physiological factors affecting release and membrane permeation. The experimental techniques used to study excipient effects and their human predictive ability are reviewed. EXPERT OPINION The observed effects of excipient in oral absorption process have been characterized in the past, mainly in vitro (i.e. in dissolution studies, in vitro cell culture methods or in situ animal studies). Unfortunately, a clear link with their effects in vivo, i.e. their impact on Cmax or AUC, which need a mechanistic approach is still missing. The information compiled in this review leads to the conclusion that the effect of excipients in API oral absorption and bioavailability is undeniable and shows the need of implementing standardized and reproducible preclinical tools coupled with mechanistic and predictive physiological-based models to improve the current empirical retrospective approach.
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Affiliation(s)
- Alejandro Ruiz-Picazo
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Isabel Lozoya-Agullo
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Isabel González-Álvarez
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Marival Bermejo
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Marta González-Álvarez
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
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Arciniegas SM, Saavedra SA, Balderas D, del Carmen Caballero S, Bernad MJ, Sánchez JC, Gracia MI, Rico HA, Vargas D. Comparison in the Glucose Response of Flexible Liposomes Loaded with Insulin with the Addition of Different Surfactants in an Experimental Diabetes Model. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180816666191024102231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Insulin has been included in a variety of dosage forms; nevertheless, liposomes
have shown protection to degradation and better absorption. The addition of surfactant to liposomes
could give the ability to deform and pass through intact membranes, and could increase the
stability and the release of the drug.
Introduction:
Due to the limitations of the current treatment of insulin in diabetic patients, investigation
in alternatives routes has increased. The oral route is the most convenient because of the
similarity with the natural secretion of this hormone. The aim was to evaluate the in-vivo effect of
fourteen formulations of Insulin-loaded flexible liposomes with different surfactants by oral and
subcutaneous routes.
Methods:
Fourteen formulations of insulin were obtained with the addition of different surfactants.
Size distribution, polydispersion index and Z potential were obtained for all formulations. In-vivo
tests were performed in rats induced with experimental diabetes with streptozotocin, and glucose
curves were obtained during 480 minutes.
Results:
All formulations by the subcutaneous route caused an optimal reduction in glucose levels.
However, the addition of Brij L23 produced a better reduction, lasting for 420 minutes. By the oral
route, the reduction of glucose did not reach the normal levels, but the addition of Poloxamer 407
and Brij S10 showed the best reduction in the glucose levels by this route.
Conclusion:
The addition of surfactants to the lipid structure can modify the release of the insulin
by different routes of administration, but this behavior depends on the characteristics of the surfactant,
such as the melting phase transition temperature of the lipid bilayer.
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Affiliation(s)
- Sara Melisa Arciniegas
- Physiology and Pharmacology Department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico, Mexico
| | - Sergio Andres Saavedra
- Physiology and Pharmacology Department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico, Mexico
| | - Danaé Balderas
- Physiology and Pharmacology Department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico, Mexico
| | - Sara del Carmen Caballero
- Physiology and Pharmacology Department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico, Mexico
| | - María Josefa Bernad
- Pharmaceutical Technology. Chemistry Faculty, Universidad Nacional Autonoma de Mexico, Mexico
| | - Julio Cesar Sánchez
- Department of Chemical and Biological Inspection of the Veterinary Medicine School, Universidad Nacional Autonoma de Mexico 04510, Mexico
| | - María Isabel Gracia
- Animal Experiment Unit. Chemistry Faculty, Universidad Nacional Autonoma de Mexico, Mexico
| | - Héctor Ariel Rico
- Animal Experiment Unit. Chemistry Faculty, Universidad Nacional Autonoma de Mexico, Mexico
| | - Dinorah Vargas
- Physiology and Pharmacology Department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico, Mexico
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12
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Ruiz-Picazo A, Gonzalez-Alvarez M, Gonzalez-Alvarez I, Bermejo M. Effect of Common Excipients on Intestinal Drug Absorption in Wistar Rats. Mol Pharm 2020; 17:2310-2318. [DOI: 10.1021/acs.molpharmaceut.0c00023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Alejandro Ruiz-Picazo
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Marta Gonzalez-Alvarez
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Isabel Gonzalez-Alvarez
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
| | - Marival Bermejo
- Engineering: Pharmacokinetics and Pharmaceutical Technology Area, Miguel Hernandez University, Elche, Spain
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13
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Bahman F, Greish K, Taurin S. Nanotechnology in Insulin Delivery for Management of Diabetes. Pharm Nanotechnol 2019; 7:113-128. [PMID: 30907328 DOI: 10.2174/2211738507666190321110721] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 02/22/2019] [Accepted: 03/18/2019] [Indexed: 12/30/2022]
Abstract
Diabetes is a group of diseases characterized by hyperglycemia and originating from the deficiency or resistance to insulin, or both. Ultimately, the most effective treatment for patients with diabetes involves subcutaneous injections of insulin. However, this route of administration is often painful and inconvenient, as most patients will have to selfadminister it at least twice a day for the rest of their lives. Also, infection, insulin precipitation, and either lipoatrophy or lipohypertrophy are frequently observed at the site of injection. To date, several alternative routes of insulin administration have been explored, including nasal, pulmonary and oral. Although the delivery of insulin is an ideal route for diabetic patients, several limitations have to be overcome such as the rapid degradation of insulin in gastric fluid and low oral bioavailability. Numerous strategies have been carried out to improve these limited parameters such as the use of enzyme inhibitors, absorption enhancers, mucoadhesive polymers and chemical modification for receptor-mediated absorption. Also, insulin-loaded nanocarriers bypass several physiological barriers. This current review focuses on the various barriers existing in the delivery of insulin through the oral route and the strategies undertaken so far to overcome those obstacles using nanocarriers as a potential vehicle of insulin.
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Affiliation(s)
- Fatemah Bahman
- Department of Molecular Medicine, Princess Al-Jawhara Centre for Molecular Medicine, School of Medicine and Medical sciences, Arabian Gulf University, Manama, Bahrain
| | - Khaled Greish
- Department of Molecular Medicine, Princess Al-Jawhara Centre for Molecular Medicine, School of Medicine and Medical sciences, Arabian Gulf University, Manama, Bahrain
| | - Sebastien Taurin
- Department of Molecular Medicine, Princess Al-Jawhara Centre for Molecular Medicine, School of Medicine and Medical sciences, Arabian Gulf University, Manama, Bahrain
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14
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Ruiz SMA, Bernad Bernad MJ, Arellano RL, Torres RD, Del Carmen Caballero Chacón S, Estrada DV. In Vitro and In Vivo Profiles and Characterization of Insulin Nanocarriers Based in Flexible Liposomes Designed for Oral Administration. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666190110112929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Alternatives routes of delivery for Insulin have been evaluated to improve
treatment for Diabetes Mellitus. The oral route is the most convenient physiologically; it releases in a
similar way to endogenous secretion. Flexible liposomes have deformable abilities to pass through
membranes with adequate therapeutic effects, but they have been tested only dermally.
Objective:
Our aim was to develop an oral nanocarrier based on flexible liposomes for insulin with
polymer addition to reduce gastrointestinal degradation.
Methods:
Different percentages of polyethylene glycol were added to a conventional formulation of
flexible liposomes. The manufacturing procedure was the heating method. Z potential, size particle,
polydispersity index and encapsulation percentage were evaluated. A release profile was performed
in the stomach and intestinal pH mediums by two-stage reverse dialysis method. The in-vivo test was
performed in experimental diabetic rats by oral, transdermal and subcutaneous routes.
Results:
All the formulations showed polydispersity but adequate Z potential. The 10% PEG
formulation obtained the best insulin enclosure with 81.9%. The insulin integrity after preparation
was confirmed by polyacrylamide gel electrophoresis. PEG and non-PEG formulations showed
similar behavior in acid release profile but the release and stability of lipid structures were better and
longer in intestinal pH conditions. In vivo tests showed a reduction to normal glucose levels only in
subcutaneous route.
Conclusion:
The polymer inclusion in flexible liposomes generates an adequate nanocarrier for
proteins in terms of stability and composition; although its in-vivo use reduces glucose levels in
subcutaneous route, the effect was not adequate in oral route.
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Affiliation(s)
- Sara Melisa Arciniegas Ruiz
- Physiology and Pharmacology department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico. Mexico Universidad 3000, Circuito Exterior S/N Delegacion Coyoacan, C.P. 04510, Ciudad Universitaria. CD.MX, Mexico
| | - María Josefa Bernad Bernad
- Pharmaceutical Technology, Chemistry Faculty, Universidad Nacional Autonoma de Mexico, Mexico Universidad 3000, Circuito Exterior S/N Delegacion Coyoacan, C.P. 04510. Ciudad Universitaria. CD.MX, Mexico
| | - Raquel Lopez Arellano
- Laboratory of Pharmaceutical Assays, Facultad de Estudios Superiores (FES) Cuautitlan, Universidad Nacional Autonoma de Mexico, Mexico Campo Cuatro, Carretera Cuautitlan-Teoloyucan Km. 2.5, Col. San Sebastian Xhala, Cuautitlan Izcalli, Estado de Mexico, CP. 54714, Mexico
| | - Roberto Diaz Torres
- Multidisciplinary Research Department, Facultad de Estudios Superiores (FES) Cuautitlan, Universidad Nacional Autonoma de Mexico, Mexico Campo Cuatro, Carretera Cuautitlan-Teoloyucan Km. 2.5, Col. San Sebastian Xhala, Cuautitlan Izcalli, Estado de Mexico, CP. 54714, Mexico
| | - Sara Del Carmen Caballero Chacón
- Physiology and Pharmacology department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico. Mexico Universidad 3000, Circuito Exterior S/N Delegacion Coyoacan, C.P. 04510, Ciudad Universitaria. CD.MX, Mexico
| | - Dinorah Vargas Estrada
- Physiology and Pharmacology department, Veterinary Medicine School, Universidad Nacional Autonoma de Mexico. Mexico Universidad 3000, Circuito Exterior S/N Delegacion Coyoacan, C.P. 04510, Ciudad Universitaria. CD.MX, Mexico
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15
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Guo F, Ouyang T, Peng T, Zhang X, Xie B, Yang X, Liang D, Zhong H. Enhanced oral absorption of insulin using colon-specific nanoparticles co-modified with amphiphilic chitosan derivatives and cell-penetrating peptides. Biomater Sci 2019; 7:1493-1506. [PMID: 30672923 DOI: 10.1039/c8bm01485j] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, amphipathic chitosan derivative (ACS) and cell-penetrating peptide (CPP) co-modified colon-specific nanoparticles (CS-CPP NPs) were prepared and evaluated to improve the oral bioavailability of protein and peptide drugs. ACS modification was harnessed to protect CPPs from degradation in the stomach and small intestine after oral administration and achieve colon-specific drug delivery. After CS-CPP NPs reached the colon, ACSs on the surface of the NPs were gradually degraded and CPPs were exposed to bring into play the penetration efficacy in the colon epithelium. Herein, we synthesized four types of ACSs (TOCS, TDCS, TPCS and TSCS) and adopted three types of CPPs (Tat, Penetratin and R8) to prepare NPs (TOCS-Tat NPs, TDCS-Tat NPs, TPCS-Tat NPs, TSCS-Tat NPs, TDCS-Pen NPs and TDCS-R8 NPs). The study of the protective effects of ACS upon Tat showed that the modification of ACS exerted favourable protection upon Tat in the stomach and small intestine. ACS degradation in the colon was indirectly determined in the viscosity method, which indicated that ACS could be gradually degraded in the colon. Using Caco-2 cell monolayers as cell models, it was found that the cellular uptake amount and transcellular transportation performance of CS-CPP NPs were much enhanced compared with those of TDCS NPs and PVA NPs. With Bama mini-pigs as animal models, the pharmacodynamic study demonstrated that the hypoglycemic effect for insulin-loaded TDCS-Tat NPs was more significant than that for TDCS NPs, lowering the blood glucose by 40%. The pharmacokinetic study indicated that the AUC and Cmax for TDCS-Tat NPs were respectively increased by 1.45 times and 1.82 times compared with those of TDCS NPs. In conclusion, CS-CPP NPs as vehicles for colon-specific drug delivery systems may be an efficient approach to improve the oral absorption of protein and peptide drugs.
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Affiliation(s)
- Feng Guo
- School of Pharmacy, Nanchang University, 461 Bayi Road, Donghu District, Nanchang, 330006, China.
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16
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Chen X, Ren Y, Feng Y, Xu X, Tan H, Li J. Cp1-11 peptide/insulin complex loaded pH-responsive nanoparticles with enhanced oral bioactivity. Int J Pharm 2019; 562:23-30. [DOI: 10.1016/j.ijpharm.2019.03.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/19/2022]
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17
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Biomaterials: Foreign Bodies or Tuners for the Immune Response? Int J Mol Sci 2019; 20:ijms20030636. [PMID: 30717232 PMCID: PMC6386828 DOI: 10.3390/ijms20030636] [Citation(s) in RCA: 321] [Impact Index Per Article: 64.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 12/11/2022] Open
Abstract
The perspectives of regenerative medicine are still severely hampered by the host response to biomaterial implantation, despite the robustness of technologies that hold the promise to recover the functionality of damaged organs and tissues. In this scenario, the cellular and molecular events that decide on implant success and tissue regeneration are played at the interface between the foreign body and the host inflammation, determined by innate and adaptive immune responses. To avoid adverse events, rather than the use of inert scaffolds, current state of the art points to the use of immunomodulatory biomaterials and their knowledge-based use to reduce neutrophil activation, and optimize M1 to M2 macrophage polarization, Th1 to Th2 lymphocyte switch, and Treg induction. Despite the fact that the field is still evolving and much remains to be accomplished, recent research breakthroughs have provided a broader insight on the correct choice of biomaterial physicochemical modifications to tune the reaction of the host immune system to implanted biomaterial and to favor integration and healing.
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18
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Francis SL, Di Bella C, Wallace GG, Choong PFM. Cartilage Tissue Engineering Using Stem Cells and Bioprinting Technology-Barriers to Clinical Translation. Front Surg 2018; 5:70. [PMID: 30547034 PMCID: PMC6278684 DOI: 10.3389/fsurg.2018.00070] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/08/2018] [Indexed: 01/08/2023] Open
Abstract
There is no long-term treatment strategy for young and active patients with cartilage defects. Early and effective joint preserving treatments in these patients are crucial in preventing the development of osteoarthritis. Tissue engineering over the past few decades has presented hope in overcoming the issues involved with current treatment strategies. Novel advances in 3D bioprinting technology have promoted more focus on efficient delivery of engineered tissue constructs. There have been promising in-vitro studies and several animal studies looking at 3D bioprinting of engineered cartilage tissue. However, to date there are still no human clinical trials using 3D printed engineered cartilage tissue. This review begins with discussion surrounding the difficulties with articular cartilage repair and the limitations of current clinical management options which have led to research in cartilage tissue engineering. Next, the major barriers in each of the 4 components of cartilage tissue engineering; cells, scaffolds, chemical, and physical stimulation will be reviewed. Strategies that may overcome these barriers will be discussed. Finally, we will discuss the barriers surrounding intraoperative delivery of engineered tissue constructs and possible solutions.
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Affiliation(s)
- Sam L Francis
- Department of Surgery, University of Melbourne, Melbourne, VIC, Australia.,Department of Orthopaedics, St Vincent's Hospital, Melbourne, VIC, Australia.,Biofab 3D, Aikenhead Centre for Medical Discovery, Melbourne, VIC, Australia
| | - Claudia Di Bella
- Department of Surgery, University of Melbourne, Melbourne, VIC, Australia.,Department of Orthopaedics, St Vincent's Hospital, Melbourne, VIC, Australia.,Biofab 3D, Aikenhead Centre for Medical Discovery, Melbourne, VIC, Australia
| | - Gordon G Wallace
- Biofab 3D, Aikenhead Centre for Medical Discovery, Melbourne, VIC, Australia.,Australian Research Council, Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW, Australia
| | - Peter F M Choong
- Department of Surgery, University of Melbourne, Melbourne, VIC, Australia.,Department of Orthopaedics, St Vincent's Hospital, Melbourne, VIC, Australia.,Biofab 3D, Aikenhead Centre for Medical Discovery, Melbourne, VIC, Australia
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19
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Islam MA, Firdous J, Badruddoza AZM, Reesor E, Azad M, Hasan A, Lim M, Cao W, Guillemette S, Cho CS. M cell targeting engineered biomaterials for effective vaccination. Biomaterials 2018; 192:75-94. [PMID: 30439573 DOI: 10.1016/j.biomaterials.2018.10.041] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/09/2018] [Accepted: 10/28/2018] [Indexed: 02/08/2023]
Abstract
Vaccines are one of the greatest medical interventions of all time and have been successful in controlling and eliminating a myriad of diseases over the past two centuries. Among several vaccination strategies, mucosal vaccines have wide clinical applications and attract considerable interest in research, showing potential as innovative and novel therapeutics. In mucosal vaccination, targeting (microfold) M cells is a frontline prerequisite for inducing effective antigen-specific immunostimulatory effects. In this review, we primarily focus on materials engineered for use as vaccine delivery platforms to target M cells. We also describe potential M cell targeting areas, methods to overcome current challenges and limitations of the field. Furthermore, we present the potential of biomaterials engineering as well as various natural and synthetic delivery technologies to overcome the challenges of M cell targeting, all of which are absent in current literature. Finally, we briefly discuss manufacturing and regulatory processes to bring a robust perspective on the feasibility and potential of this next-generation vaccine technology.
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Affiliation(s)
- Mohammad Ariful Islam
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Jannatul Firdous
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Abu Zayed Md Badruddoza
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Emma Reesor
- Department of Nanotechnology Engineering, University of Waterloo, Waterloo, Canada
| | - Mohammad Azad
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha 2713, Qatar; Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Michael Lim
- Department of Nanotechnology Engineering, University of Waterloo, Waterloo, Canada
| | - Wuji Cao
- Department of Nanotechnology Engineering, University of Waterloo, Waterloo, Canada
| | - Simon Guillemette
- Department of Nanotechnology Engineering, University of Waterloo, Waterloo, Canada
| | - Chong Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea.
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20
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Wong CY, Al-Salami H, Dass CR. Recent advancements in oral administration of insulin-loaded liposomal drug delivery systems for diabetes mellitus. Int J Pharm 2018; 549:201-217. [DOI: 10.1016/j.ijpharm.2018.07.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/14/2018] [Accepted: 07/18/2018] [Indexed: 11/30/2022]
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21
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Polymeric Nano-Micelles as Novel Cargo-Carriers for LY2157299 Liver Cancer Cells Delivery. Int J Mol Sci 2018; 19:ijms19030748. [PMID: 29509706 PMCID: PMC5877609 DOI: 10.3390/ijms19030748] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/01/2018] [Accepted: 03/03/2018] [Indexed: 02/05/2023] Open
Abstract
LY2157299 (LY), which is very small molecule bringing high cancer diffusion, is a pathway antagonist against TGFβ. LY dosage can be diluted by blood plasma, can be captured by immune system or it might be dissolved during digestion in gastrointestinal tract. The aim of our study is to optimize a “nano-elastic” carrier to avoid acidic pH of gastrointestinal tract, colon alkaline pH, and anti-immune recognition. Polygalacturonic acid (PgA) is not degradable in the gastrointestinal tract due to its insolubility at acidic pH. To avoid PgA solubility in the colon, we have designed its conjugation with Polyacrylic acid (PAA). PgA-PAA conjugation has enhanced their potential use for oral and injected dosage. Following these pre-requisites, novel polymeric nano-micelles derived from PgA-PAA conjugation and loading LY2157299 are developed and characterized. Efficacy, uptake and targeting against a hepatocellular carcinoma cell line (HLF) have also been demonstrated.
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22
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Retrograded starch/pectin coated gellan gum-microparticles for oral administration of insulin: A technological platform for protection against enzymatic degradation and improvement of intestinal permeability. Eur J Pharm Biopharm 2018; 123:84-94. [DOI: 10.1016/j.ejpb.2017.11.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 10/06/2017] [Accepted: 11/23/2017] [Indexed: 01/01/2023]
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23
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Nur M, Vasiljevic T. Insulin Inclusion into a Tragacanth Hydrogel: An Oral Delivery System for Insulin. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E79. [PMID: 29304023 PMCID: PMC5793577 DOI: 10.3390/ma11010079] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 12/29/2017] [Accepted: 01/03/2018] [Indexed: 12/18/2022]
Abstract
Nanoparticles or microparticles created by physical complexation between two polyelectrolytes may have a prospective use as an excipient for oral insulin administration. Natural polymers such as tragacanth, alginate, dextran, pullulan, hyaluronic acid, gelatin and chitosan can be potential candidates for this purpose. In this research, insulin particles were prepared by the inclusion of insulin into a tragacanth hydrogel. The effect of the pH and concentration relationship involving polyelectrolytes offering individual particle size and zeta potential was assessed by zetasizer and scanning electron microscopy (SEM). Insulin-tragacanth interactions at varying pH (3.7, 4.3, 4.6, or 6), and concentration (0.1%, 0.5%, or 1% w/w) were evaluated by differential scanning calorimetry (DSC) and ATR Fourier transform infrared (ATR-FTIR) analysis. Individual and smaller particles, approximately 800 nm, were acquired at pH 4.6 with 0.5% of tragacanth. The acid gelation test indicated that insulin could be entrapped in the physical hydrogel of tragacanth. DSC thermograms of insulin-tragacanth showed shifts on the same unloaded tragacanth peaks and suggested polyelectrolyte-protein interactions at a pH close to 4.3-4.6. FTIR spectra of tragacanth-insulin complexes exhibited amide absorption bands featuring in the protein spectra and revealed the creation of a new chemical substance.
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Affiliation(s)
- Mokhamad Nur
- Advanced Food Systems Research Unit, College of Health and Biomedicine, Victoria University, PO Box 14428, Melbourne 8001, Australia.
- Department of Agricultural Product Technology, Faculty of Agricultural Technology, Brawijaya University, Jl. Veteran, Malang 65145, Indonesia.
| | - Todor Vasiljevic
- Advanced Food Systems Research Unit, College of Health and Biomedicine, Victoria University, PO Box 14428, Melbourne 8001, Australia.
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24
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Su H, Wang Y, Gu Y, Bowman L, Zhao J, Ding M. Potential applications and human biosafety of nanomaterials used in nanomedicine. J Appl Toxicol 2018; 38:3-24. [PMID: 28589558 PMCID: PMC6506719 DOI: 10.1002/jat.3476] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 03/21/2017] [Accepted: 03/21/2017] [Indexed: 12/18/2022]
Abstract
With the rapid development of nanotechnology, potential applications of nanomaterials in medicine have been widely researched in recent years. Nanomaterials themselves can be used as image agents or therapeutic drugs, and for drug and gene delivery, biological devices, nanoelectronic biosensors or molecular nanotechnology. As the composition, morphology, chemical properties, implant sites as well as potential applications become more and more complex, human biosafety of nanomaterials for clinical use has become a major concern. If nanoparticles accumulate in the human body or interact with the body molecules or chemical components, health risks may also occur. Accordingly, the unique chemical and physical properties, potential applications in medical fields, as well as human biosafety in clinical trials are reviewed in this study. Finally, this article tries to give some suggestions for future work in nanomedicine research. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Hong Su
- Department of Preventative Medicine, Zhejiang Provincial
Key Laboratory of Pathological and Physiological Technology, School of Medicine,
Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang Province 315211,
People’s Republic of China
| | - Yafei Wang
- Department of Preventative Medicine, Zhejiang Provincial
Key Laboratory of Pathological and Physiological Technology, School of Medicine,
Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang Province 315211,
People’s Republic of China
| | - Yuanliang Gu
- Department of Preventative Medicine, Zhejiang Provincial
Key Laboratory of Pathological and Physiological Technology, School of Medicine,
Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang Province 315211,
People’s Republic of China
| | - Linda Bowman
- Toxicology and Molecular Biology Branch, Health Effects
Laboratory Division, National Institute for Occupational Safety and Health,
Morgantown, WV, 26505, USA
| | - Jinshun Zhao
- Department of Preventative Medicine, Zhejiang Provincial
Key Laboratory of Pathological and Physiological Technology, School of Medicine,
Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang Province 315211,
People’s Republic of China
- Toxicology and Molecular Biology Branch, Health Effects
Laboratory Division, National Institute for Occupational Safety and Health,
Morgantown, WV, 26505, USA
| | - Min Ding
- Toxicology and Molecular Biology Branch, Health Effects
Laboratory Division, National Institute for Occupational Safety and Health,
Morgantown, WV, 26505, USA
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25
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Optimization of pH-responsive carboxymethylated iota -carrageenan/chitosan nanoparticles for oral insulin delivery using response surface methodology. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.08.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Meng Y, Zou S, Jiang M, Xu X, Tang BZ, Zhang L. Dendritic nanotubes self-assembled from stiff polysaccharides as drug and probe carriers. J Mater Chem B 2017; 5:2616-2624. [DOI: 10.1039/c7tb00213k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
AF1-constructed DNTs have promising prospects as carriers, especially in the fields of drug and probe delivery systems.
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Affiliation(s)
- Yan Meng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Siwei Zou
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Meijuan Jiang
- Department of Chemistry
- The Hong Kong University of Science & Technology
- Kowloon
- China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Ben Zhong Tang
- Department of Chemistry
- The Hong Kong University of Science & Technology
- Kowloon
- China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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27
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Development and evaluation of viscosity-enhanced nanocarrier (VEN) for oral insulin delivery. Int J Pharm 2016; 511:462-472. [DOI: 10.1016/j.ijpharm.2016.07.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 06/12/2016] [Accepted: 07/09/2016] [Indexed: 01/15/2023]
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28
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Banerjee A, Lee J, Mitragotri S. Intestinal mucoadhesive devices for oral delivery of insulin. Bioeng Transl Med 2016; 1:338-346. [PMID: 29313019 PMCID: PMC5689539 DOI: 10.1002/btm2.10015] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/03/2016] [Accepted: 06/07/2016] [Indexed: 12/20/2022] Open
Abstract
Oral delivery of proteins such as insulin has been a long‐lasting challenge owing to gastrointestinal degradation and poor permeability of therapeutic macromolecules across biological membranes. We have developed mucoadhesive intestinal devices for oral delivery of insulin to address this challenge. Here we demonstrate a combination of intestinal devices and a permeation enhancer, dimethyl palmitoyl ammonio propanesulfonate (PPS), for oral delivery of insulin. The devices were delivered from a capsule coated with a pH‐responsive enteric coating. The devices adhere to intestinal mucosa, release their protein load unidirectionally, and prevent enzymatic degradation in the gut. Devices were found to completely release their drug load within 3–4 hr and showed excellent strength of mucoadhesion to porcine intestine. Devices loaded with insulin and PPS significantly decreased blood glucose levels by 30 and 33% in diabetic and nondiabetic rats, respectively. These studies demonstrate that intestinal mucoadhesive devices are a promising oral alternative to insulin injections and therefore should be further explored for the treatment of diabetes.
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Affiliation(s)
- Amrita Banerjee
- Dept. of Chemical Engineering University of California Santa Barbara Santa Barbara CA 93106
| | - JooHee Lee
- Dept. of Chemical Engineering University of California Santa Barbara Santa Barbara CA 93106
| | - Samir Mitragotri
- Dept. of Chemical Engineering University of California Santa Barbara Santa Barbara CA 93106.,Center for Bioengineering University of California Santa Barbara Santa Barbara California 93106
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29
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Boushra M, Tous S, Fetih G, Xue HY, Tran NT, Wong HL. Methocel-Lipid Hybrid Nanocarrier for Efficient Oral Insulin Delivery. J Pharm Sci 2016; 105:1733-1740. [PMID: 27012226 DOI: 10.1016/j.xphs.2016.02.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 01/10/2016] [Accepted: 02/16/2016] [Indexed: 12/23/2022]
Abstract
Even with the use of double-emulsion technique for preparation, the hydrophobic nature of solid lipid nanoparticles (SLNs) limits their encapsulation efficiency (EE%) for peptides such as insulin. In this study, we hypothesize that inclusion of Methocel into SLN to form Methocel-lipid hybrid nanocarriers (MLNs) will significantly enhance insulin EE% without compromising the various characteristics of SLN favorable for oral drug delivery. Our data show that incorporation of 2% wt/wt of Methocel A15C had doubled insulin EE% (around 40%) versus conventional SLN prepared using standard double emulsion technique. MLN significantly protected the entrapped insulin against chymotrypsin degradation at gastrointestinal pH. Using intestinal epithelial cells Caco2 as a model, it was shown that MLN could be extensively taken up by Caco2 cells while demonstrating low cytotoxicity. The results indicate that MLN have preserved the key advantages of SLN (biocompatibility, low cytotoxicity, good drug protection, and good interaction with cells) while overcoming their key limitation for efficient peptide entrapment. Based on this, MLN may serve as a promising nanocarrier for oral delivery of peptides.
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Affiliation(s)
- Mariam Boushra
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140; Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Sozan Tous
- Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Gihan Fetih
- Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Hui-Yi Xue
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140
| | - Ngoc T Tran
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140
| | - Ho Lun Wong
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140.
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Bhattacharyya A, Mukherjee D, Mishra R, Kundu PP. Development of pH sensitive polyurethane–alginate nanoparticles for safe and efficient oral insulin delivery in animal models. RSC Adv 2016. [DOI: 10.1039/c6ra06749b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Blends of sodium alginate (ALG) and polyurethane (PU) synthesized from depolymerised polyethylene terephthalate (PET) to formulate insulin loaded PU–ALG nanoparticles for the purpose of controlled oral insulin delivery.
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Affiliation(s)
- Aditi Bhattacharyya
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | | | - Roshnara Mishra
- Department of Physiology
- University of Calcutta
- Kolkata 700009
- India
| | - P. P. Kundu
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
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Caldorera-Moore M, Maass K, Hegab R, Fletcher G, Peppas N. Hybrid responsive hydrogel carriers for oral delivery of low molecular weight therapeutic agents. J Drug Deliv Sci Technol 2015; 30:352-359. [PMID: 26688695 DOI: 10.1016/j.jddst.2015.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hydrogels have been influential in the development of controlled release systems for a wide variety of therapeutic agents. These materials are attractive as carriers for transmucosal and intracellular drug delivery because of their inherent biocompatibility, tunable physicochemical properties, basic synthesis, and ability to be physiologically responsive. Due to their hydrophilic nature, hydrogel-based carrier systems are not always the best systems for delivery of small molecular weight, hydrophobic therapeutic agents. In this work, versatile hydrogel-based carriers composed of copolymers of methyl methacrylate (MMA) and acrylic acid (AA) were designed and synthesized to create formulations for oral delivery of small molecular weight therapeutic agents. Through practical material selection and careful design of copolymer composition and molecular architecture, we engineered systems capable of responding to physiological changes, with tunable physicochemical properties that are optimized to load, protect, and deliver their payloads to their intended site of action. The synthesized carriers' ability to respond to changes in pH, to load and release small molecular weight drugs, and biocompatibility were investigated. Our results suggest these hydrophilic networks have great potential for controlled delivery of small-molecular weight, hydrophobic and hydrophilic agents.
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Affiliation(s)
- M Caldorera-Moore
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, LA 71272, USA ; Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA ; Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Maass
- Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - R Hegab
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, LA 71272, USA
| | - G Fletcher
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - N Peppas
- Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA ; Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA ; Division of Pharmaceutics, The University of Texas at Austin, Austin, TX 78712, USA ; Institute for Biomaterials, Drug Delivery and Regenerative Medicine, The University of Texas at Austin, Austin, TX 78712, USA
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Shi Y, Wang X, Deng X, Tian R, Zhang Y, Shang Q, Chen N. Release profile of insulin from pH-sensitive hydrogel and its hypoglycemic effect by oral administration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 27:86-96. [PMID: 26498982 DOI: 10.1080/09205063.2015.1111718] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The purpose of this study was to investigate the release profile and in vivo hypoglycemic effect of insulin (INS)-loaded pH-sensitive hydrogel (INS-TPM950) administrated by oral route. TPM950 was fabricated via a free polymerization method and its inner morphology was observed with a scanning electron microscope (SEM). INS was encapsulated into TPM950 by an adsorption method, and the in vitro release profiles of INS from INS-TPM950 were revealed in pH 1.2 and 6.8. To investigate the hypoglycemic effect of INS-TPM950, Male Wistar rats were used in modeling of diabetes mellitus by multiple intraperitoneal injection of alloxan. The in vivo hypoglycemic effect of oral INS-TPM950 was studied, and the optimal dosage was also determined. SEM photograph showed that abundant 3D meshes were distributed in the inner of TPM950 hydrogel. INS release profile suggested that only 18.2 ± 11.3% INS was released in pH 1.2, but over 88.8 ± 4.9% was delivered into phosphate buffer solution in pH 6.8. After injection to the diabetic rats, the released INS solution from INS-TPM950 exhibited an obvious hypoglycemic effect. Oral administration of 50.0 I.U./kg of INS-TPM950 showed a slow but effective hypoglycemic effect, and the lowest blood glucose level was reached to 47.5 ± 5.5% of the original level. Therefore, this formulation had a potential application in diabetes treatment via oral ingestion.
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Affiliation(s)
- Yongli Shi
- a School of Pharmacy , Xinxiang Medical University , Xinxiang , P.R. China
| | - Xiao Wang
- a School of Pharmacy , Xinxiang Medical University , Xinxiang , P.R. China
| | - Xiuzhen Deng
- a School of Pharmacy , Xinxiang Medical University , Xinxiang , P.R. China
| | - Ruiqiong Tian
- b Chemical and Pharmaceutical Engineering Institute , Hebei University of Science and Technology , Shijiazhuang , P.R. China
| | - Yuehong Zhang
- b Chemical and Pharmaceutical Engineering Institute , Hebei University of Science and Technology , Shijiazhuang , P.R. China
| | - Qing Shang
- b Chemical and Pharmaceutical Engineering Institute , Hebei University of Science and Technology , Shijiazhuang , P.R. China
| | - Nan Chen
- c China Environmental United(Beijing)Env.Protection Co., Ltd , Beijing , P.R. China
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Di Bella C, Fosang A, Donati DM, Wallace GG, Choong PFM. 3D Bioprinting of Cartilage for Orthopedic Surgeons: Reading between the Lines. Front Surg 2015; 2:39. [PMID: 26322314 PMCID: PMC4534805 DOI: 10.3389/fsurg.2015.00039] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 07/31/2015] [Indexed: 12/14/2022] Open
Abstract
Chondral and osteochondral lesions represent one of the most challenging and frustrating scenarios for the orthopedic surgeon and for the patient. The lack of therapeutic strategies capable to reconstitute the function and structure of hyaline cartilage and to halt the progression toward osteoarthritis has brought clinicians and scientists together, to investigate the potential role of tissue engineering as a viable alternative to current treatment modalities. In particular, the role of bioprinting is emerging as an innovative technology that allows for the creation of organized 3D tissue constructs via a "layer-by-layer" deposition process. This process also has the capability to combine cells and biomaterials in an ordered and predetermined way. Here, we review the recent advances in cartilage bioprinting and we identify the current challenges and the directions for future developments in cartilage regeneration.
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Affiliation(s)
- Claudia Di Bella
- Department of Orthopaedic, St Vincent’s Hospital, Melbourne, VIC, Australia
- Department of Surgery, University of Melbourne, Melbourne, VIC, Australia
| | - Amanda Fosang
- Murdoch Childrens Research Institute, University of Melbourne, Parkville, VIC, Australia
| | - Davide M. Donati
- Unit of Orthopaedic Pathology and Osteoarticular Tissue Regeneration, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Gordon G. Wallace
- ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW, Australia
| | - Peter F. M. Choong
- Department of Orthopaedic, St Vincent’s Hospital, Melbourne, VIC, Australia
- Department of Surgery, University of Melbourne, Melbourne, VIC, Australia
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Liu C, Shan W, Liu M, Zhu X, Xu J, Xu Y, Huang Y. A novel ligand conjugated nanoparticles for oral insulin delivery. Drug Deliv 2015. [PMID: 26203690 DOI: 10.3109/10717544.2015.1058433] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In order to enhance the interaction between nanocarrier and gastrointestinal epithelial cells, we developed nanoparticles (NPs) modified with targeting ligand FQSIYPpIK (FQS), which specifically interact with integrin αvβ3 receptor expressing on the intestinal epithelium. The targeting NPs were prepared by coating the insulin-loaded poly(lactide-co-glycolide)-monomethoxy-poly(polyethylene glycol) micelle cores with FQS modified trimethyl chitosan chloride. In in vitro study, the fabricated NPs showed ameliorated drug release profile and improved enzymatic stability compared with micelles alone. In the integrin αvβ3 receptor over-expressed Caco-2 cells model, FQS modified NPs exhibited significantly accelerated intracellular uptake due to the active ligand-receptor mediation. Meanwhile, the targeting NPs also showed enhanced transport across the Caco-2 monolayer cells via both transcellular and paracellular pathways. Besides, orally administered FQS modified NPs produced a prominent hypoglycemic response and an increase of the serum insulin concentration in diabetic rats. Both in vitro and in vivo results demonstrated the FQS peptide modified NPs as promising intestinal cell-targeting nanocarriers for efficient oral delivery of insulin.
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Affiliation(s)
- Chong Liu
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Wei Shan
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Min Liu
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Xi Zhu
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Juan Xu
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Yining Xu
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
| | - Yuan Huang
- a Key Laboratory of Drug Targeting and Drug Delivery System , Ministry of Education, West China School of Pharmacy, Sichuan University , Chengdu , P.R. China
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Guo F, Zhang M, Gao Y, Zhu S, Chen S, Liu W, Zhong H, Liu J. Modified nanoparticles with cell-penetrating peptide and amphipathic chitosan derivative for enhanced oral colon absorption of insulin: preparation and evaluation. Drug Deliv 2015; 23:2003-14. [DOI: 10.3109/10717544.2015.1048489] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Mahmud F, Jeon OC, Al-Hilal TA, Kweon S, Yang VC, Lee DS, Byun Y. Absorption Mechanism of a Physical Complex of Monomeric Insulin and Deoxycholyl-l-lysyl-methylester in the Small Intestine. Mol Pharm 2015; 12:1911-20. [PMID: 25892399 DOI: 10.1021/mp500626a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Currently, oral administration of insulin still remains the best option to avoid the burden of repeated subcutaneous injections and to improve its pharmacokinetics. The objective of the present investigation was to demonstrate the absorption mechanism of insulin in the physical complexation of deoxycholyl-l-lysyl-methylester (DCK) for oral delivery. The oral insulin/DCK complex was prepared by making a physical complex of insulin aspart with DCK through ion-pair interaction in water. For the cellular uptake study, fluorescein-labeled insulin or DCK were prepared according to a standard protocol and applied to Caco-2 or MDCK cell lines. For the PK/PD studies, we performed intrajejunal administration of different formulation of insulin/DCK complex to diabetic rats. The resulting insulin and DCK complex demonstrated greatly enhanced lipophilicity as well as increased permeation across Caco-2 monolayers. The immunofluorescence study revealed the distribution of the complex in the cytoplasm of Caco-2 cells. Moreover, in the apical sodium bile acid transporter (ASBT) transfected MDCK, the insulin/DCK complex showed interaction with ASBT, and also demonstrated absorption through passive diffusion. We could not find that any evidence of endocytosis in relation to the uptake of insulin complex in vitro. In the rat intestine model, the highest absorption of insulin complex was observed in the jejunum at 1 h and then in the ileum at 2-4 h. In PK/PD study, the complex showed a similar PK profile to that of SC insulin. Overall, the study showed that the effect of DCK on enhancing the absorption of insulin resulted from transcellular processes as well as bile acid transporter activity.
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Affiliation(s)
- Foyez Mahmud
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Ok-Cheol Jeon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Taslim A Al-Hilal
- ‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seho Kweon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Victor C Yang
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,§Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Dong Soo Lee
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,∥Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 110-744, South Korea
| | - Youngro Byun
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
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Pridgen EM, Alexis F, Farokhzad OC. Polymeric nanoparticle drug delivery technologies for oral delivery applications. Expert Opin Drug Deliv 2015; 12:1459-73. [PMID: 25813361 PMCID: PMC4835173 DOI: 10.1517/17425247.2015.1018175] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Many therapeutics are limited to parenteral administration. Oral administration is a desirable alternative because of the convenience and increased compliance by patients, especially for chronic diseases that require frequent administration. Polymeric nanoparticles (NPs) are one technology being developed to enable clinically feasible oral delivery. AREAS COVERED This review discusses the challenges associated with oral delivery. Strategies used to overcome gastrointestinal (GI) barriers using polymeric NPs will be considered, including mucoadhesive biomaterials and targeting of NPs to transcytosis pathways associated with M cells and enterocytes. Applications of oral delivery technologies will also be discussed, such as oral chemotherapies, oral insulin, treatment of inflammatory bowel disease, and mucosal vaccinations. EXPERT OPINION There have been many approaches used to overcome the transport barriers presented by the GI tract, but most have been limited by low bioavailability. Recent strategies targeting NPs to transcytosis pathways present in the intestines have demonstrated that it is feasible to efficiently transport both therapeutics and NPs across the intestines and into systemic circulation after oral administration. Further understanding of the physiology and pathophysiology of the intestines could lead to additional improvements in oral polymeric NP technologies and enable the translation of these technologies to clinical practice.
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Affiliation(s)
| | - Frank Alexis
- Department of Bioengineering, Clemson University, Clemson, SC 29634
| | - Omid C. Farokhzad
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
- King Abdulaziz University, Jeddah, Saudi Arabia
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Knipe JM, Chen F, Peppas NA. Enzymatic biodegradation of hydrogels for protein delivery targeted to the small intestine. Biomacromolecules 2015; 16:962-72. [PMID: 25674922 DOI: 10.1021/bm501871a] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multiresponsive poly(methacrylic acid-co-N-vinylpyrrolidone) hydrogels were synthesized with biodegradable oligopeptide crosslinks. The oligopeptide crosslinks were incorporated using EDC-NHS zero-length links between the carboxylic acid groups of the polymer and free primary amines on the peptide. The reaction of the peptide was confirmed by primary amine assay and IR spectroscopy. The microgels exhibited pH-responsive swelling as well as enzyme-catalyzed degradation targeted by trypsin present in the small intestine, as demonstrated upon incubation with gastrointestinal fluids from rats. Relative turbidity was used to evaluate enzyme-catalyzed degradation as a function of time, and initial trypsin concentration controlled both the degradation mechanism as well as the extent of degradation. Trypsin activity was effectively extinguished by incubation at 70 °C, and both the microgels and degradation products posed no cytotoxic effect toward two different cell lines. The microgels demonstrated pH-dependent loading of the protein insulin for oral delivery to the small intestine.
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Affiliation(s)
- Jennifer M Knipe
- Department of Chemical Engineering, C0400, ‡Department of Biomedical Engineering, C0800, §College of Pharmacy, A1900, and #Institute for Biomaterials, Drug Delivery and Regenerative Medicine, C0800, The University of Texas at Austin , Austin, Texas 78712, United States
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pH-responsive modulation of insulin aggregation and structural transformation of the aggregates. Biochimie 2015; 109:49-59. [DOI: 10.1016/j.biochi.2014.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 12/09/2014] [Indexed: 12/19/2022]
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Pridgen EM, Alexis F, Farokhzad OC. Polymeric nanoparticle technologies for oral drug delivery. Clin Gastroenterol Hepatol 2014; 12:1605-10. [PMID: 24981782 PMCID: PMC4171204 DOI: 10.1016/j.cgh.2014.06.018] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 06/24/2014] [Indexed: 02/07/2023]
Abstract
Biologics increasingly are being used for the treatment of many diseases. These treatments typically require repeated doses administered by injection. Alternate routes of administration, particularly oral, are considered favorable because of improved convenience and compliance by patients, but physiological barriers such as extreme pH level, enzyme degradation, and poor intestinal epithelium permeability limit absorption. Encapsulating biologics in drug delivery systems such as polymeric nanoparticles prevents inactivation and degradation caused by low pH and enzymes of the gastrointestinal tract. However, transport across the intestinal epithelium remains the most critical barrier to overcome for efficient oral delivery. This review focuses on recent advances in polymeric nanoparticles being developed to overcome transport barriers and their potential for translation into clinical use.
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Affiliation(s)
- Eric M Pridgen
- School of Medicine, Stanford University, Stanford, California.
| | - Frank Alexis
- Department of Bioengineering, Clemson University, Clemson, South Carolina
| | - Omid C Farokhzad
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; King Abdulaziz University, Jeddah, Saudi Arabia.
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Smirnova E, Safenkova I, Stein-Margolina V, Shubin V, Gurvits B. Can aggregation of insulin govern its fate in the intestine? Implications for oral delivery of the drug. Int J Pharm 2014; 471:65-8. [DOI: 10.1016/j.ijpharm.2014.05.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 05/15/2014] [Accepted: 05/16/2014] [Indexed: 10/25/2022]
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Emerging Trends in Noninvasive Insulin Delivery. JOURNAL OF PHARMACEUTICS 2014; 2014:378048. [PMID: 26556194 PMCID: PMC4590826 DOI: 10.1155/2014/378048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/26/2014] [Accepted: 04/16/2014] [Indexed: 11/18/2022]
Abstract
This paper deals with various aspects of oral insulin delivery system. Insulin is used for the treatment of diabetes mellitus, which is characterized by the elevated glucose level (above the normal range) in the blood stream, that is, hyperglycemia. Oral route of administration of any drug is the most convenient route. Development of oral insulin is still under research. Oral insulin will cause the avoidance of pain during the injection (in subcutaneous administration), anxiety due to needle, and infections which can be developed. Different types of enzyme inhibitors, like sodium cholate, camostat, mesilate, bacitracin, leupeptin, and so forth, have been used to prevent insulin from enzymatic degradation. Subcutaneous route has been used for administration of insulin, but pain and itching at the site of administration can occur. That is why various alternative routes of insulin administration like oral route are under investigation. In this paper authors summarized advancement in insulin delivery with their formulation aspects.
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Annabi N, Tamayol A, Uquillas JA, Akbari M, Bertassoni LE, Cha C, Camci-Unal G, Dokmeci MR, Peppas NA, Khademhosseini A. 25th anniversary article: Rational design and applications of hydrogels in regenerative medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:85-123. [PMID: 24741694 PMCID: PMC3925010 DOI: 10.1002/adma.201303233] [Citation(s) in RCA: 843] [Impact Index Per Article: 84.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Hydrogels are hydrophilic polymer-based materials with high water content and physical characteristics that resemble the native extracellular matrix. Because of their remarkable properties, hydrogel systems are used for a wide range of biomedical applications, such as three-dimensional (3D) matrices for tissue engineering, drug-delivery vehicles, composite biomaterials, and as injectable fillers in minimally invasive surgeries. In addition, the rational design of hydrogels with controlled physical and biological properties can be used to modulate cellular functionality and tissue morphogenesis. Here, the development of advanced hydrogels with tunable physiochemical properties is highlighted, with particular emphasis on elastomeric, light-sensitive, composite, and shape-memory hydrogels. Emerging technologies developed over the past decade to control hydrogel architecture are also discussed and a number of potential applications and challenges in the utilization of hydrogels in regenerative medicine are reviewed. It is anticipated that the continued development of sophisticated hydrogels will result in clinical applications that will improve patient care and quality of life.
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Affiliation(s)
- Nasim Annabi
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Ali Tamayol
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jorge Alfredo Uquillas
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Mohsen Akbari
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Luiz E. Bertassoni
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chaenyung Cha
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Gulden Camci-Unal
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Mehmet R. Dokmeci
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Nicholas A. Peppas
- Department of Biomedical Engineering, Biomedical Engineering Building 3.110B, The University of Texas at Austin, 1 University Station, C0800, Austin, Texas, 78712–1062, USA
| | - Ali Khademhosseini
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
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Gundogdu E, Yurdasiper A. Drug transport mechanism of oral antidiabetic nanomedicines. Int J Endocrinol Metab 2014; 12:e8984. [PMID: 24696697 PMCID: PMC3968979 DOI: 10.5812/ijem.8984] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 04/08/2013] [Accepted: 05/05/2013] [Indexed: 11/22/2022] Open
Abstract
CONTEXT Over the last few decades, extensive efforts have been made worldwide to develop nanomedicine delivery systems, especially via oral route for antidiabetic drugs. Absorption of insulin is hindered by epithelial cells of gastrointestinal tract, acidic gastric pH and digestive enzymes. EVIDENCE ACQUISITION Recent reports have identified and explained the beneficial role of several structural molecules like mucoadhesive polymers (polyacrylic acid, sodium alginate, chitosan) and other copolymers for the efficient transport and release of insulin to its receptors. RESULTS Insulin nanomedicines based on alginate-dextran sulfate core with a chitosan-polyethylene glycol-albumin shell reduced glycaemia in a dose dependent manner. Orally available exendin-4 formulations exerted their effects in a time dependent manner. Insulin nanoparticles formed by using alginate and dextran sulfate nucleating around calcium and binding to poloxamer, stabilized by chitosan, and subsequently coated with albumin showed a threefold increase of the hypoglycemic effect in comparison to free insulin in animal models. Solid lipid nanoparticles showed an enhancement of the bioavailability of repaglinide (RG) within optimized solid lipid nanoparticle formulations when compared with RG alone. CONCLUSIONS Nanoparticles represent multiparticulate delivery systems designed to obtain prolonged or controlled drug delivery and to improve bioavailability as well as stability. Nanoparticles can also offer advantages like limiting fluctuations within therapeutic range, reducing side effects, protecting drugs from degradation, decreasing dosing frequency, and improving patient compliance and convenience.
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Affiliation(s)
- Evren Gundogdu
- Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, Izmir, Turkey
- Corresponding author: Evren Gundogdu, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, Izmir, Turkey. Tel.: +90-2323884000, Fax: +90-2323885258, E-mail:
| | - Aysu Yurdasiper
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir, Turkey
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Turcheniuk K, Khanal M, Motorina A, Subramanian P, Barras A, Zaitsev V, Kuncser V, Leca A, Martoriati A, Cailliau K, Bodart JF, Boukherroub R, Szunerits S. Insulin loaded iron magnetic nanoparticle–graphene oxide composites: synthesis, characterization and application for in vivo delivery of insulin. RSC Adv 2014. [DOI: 10.1039/c3ra46307a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Zhang X, Qi J, Lu Y, Hu X, He W, Wu W. Enhanced hypoglycemic effect of biotin-modified liposomes loading insulin: effect of formulation variables, intracellular trafficking, and cytotoxicity. NANOSCALE RESEARCH LETTERS 2014; 9:185. [PMID: 24739082 PMCID: PMC3996857 DOI: 10.1186/1556-276x-9-185] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 04/03/2014] [Indexed: 05/05/2023]
Abstract
Peroral protein/peptide delivery has been one of the most challenging, but encouraging topics in pharmaceutics. This article was intended to explore the potential of biotin-modified liposomes (BLPs) as oral insulin delivery carriers. By incorporating biotin-DSPE into the lipid bilayer, we prepared BLPs using reverse evaporation/sonication method. We investigated hypoglycemic effects in normal rats after oral administration of BLPs, and the possible absorption mechanism by a series of in vitro tests. The relative pharmacological bioavailability of BLPs was up to 11.04% that was as much as 5.28 folds of conventional liposomes (CLPs). The results showed that the enhanced oral absorption of insulin mainly attributed to biotin ligand-mediated endocytosis. The results provided proof of BLPs as effective carriers for oral insulin delivery.
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Affiliation(s)
- Xingwang Zhang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
- Division of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jianping Qi
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
| | - Yi Lu
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
| | - Xiongwei Hu
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
| | - Wei He
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
| | - Wei Wu
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Shanghai 201203, People's Republic of China
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Mishra V, Jung SH, Park JM, Jeong HM, Lee HI. Triazole-Containing Hydrogels for Time-Dependent Sustained Drug Release. Macromol Rapid Commun 2013; 35:442-6. [DOI: 10.1002/marc.201300585] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 08/20/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Vivek Mishra
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Seo-Hyun Jung
- Research Center for Green Fine Chemicals; Korea Research Institute of Chemical Technology; Ulsan 681-802 Republic of Korea
| | - Jong Mok Park
- Research Center for Green Fine Chemicals; Korea Research Institute of Chemical Technology; Ulsan 681-802 Republic of Korea
| | - Han Mo Jeong
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Hyung-il Lee
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
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Hibbins AR, Choonara YE, Kumar P, du Toit LC, Pillay V. Physicomechanical characterization and optimization of EDTA-mPEG and Avicel®-EDTA-mPEG in situ melt dispersion mini-pellets. AAPS PharmSciTech 2013; 14:935-49. [PMID: 23733514 DOI: 10.1208/s12249-013-9979-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 05/08/2013] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to develop a physicomechanically customizable oral metal chelatory in situ hot melt dispersion mini-pellet entity which could be utilized within a binary drug delivery system. Avicel(®) RC/CL type R-591 was included within the in situ hot melt dispersion mini-pellet formulations to determine the physicomechanical effect this compound would have on the mini-pellet formulations. The physicomechanical properties of the hot melt in situ mini-pellet formulations were mathematically fitting to regression curves. Physicomechanical adjustment of the in situ hot melt dispersion mini-pellet formulations could be mathematically predicted with the derived regression curve equations. The addition of Avicel(®) RC/CL type R-591 increased the physicomechanical properties such as matrix hardness and increased total disintegration of the in situ hot melt dispersion mini-pellet formulations. The utilization of a physicomechanically customizable oral metal chelatory in situ hot melt dispersion mini-pellet entity within a binary drug delivery system would to achieve a synergistically enhance the activity of a drug-carrying entity or a permeation enhancing entity within a single drug delivery unit. The experimental results indicated that weights of the pellets that achieved optimal hardness ranged between 35 and 45 mg. The melt-dispersion formulations disintegrated within shorter time periods and maintained higher ethylenediaminetetraacetic acid (EDTA) concentrations whereas melt-dispersion formulations which included Avicel(®) had superior physicomechanical properties. Disintegration times ranged between 1,000 s for melt-dispersions containing EDTA and methyloxy polyethylene glycol 2000 (mPEG) only, to >6,000 s for melt-dispersions comprising EDTA, mPEG, and Avicel(®).
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Abstract
Oral delivery of insulin may significantly improve the quality of life of diabetes patients who routinely receive insulin by the subcutaneous route. In fact, compared with this administration route, oral delivery of insulin in diabetes treatment offers many advantages: higher patient compliance, rapid hepatic insulinization, and avoidance of peripheral hyperinsulinemia and other adverse effects such as possible hypoglycemia and weight gain. However, the oral delivery of insulin remains a challenge because its oral absorption is limited. The mainbarriers faced by insulin in the gastrointestinal tract are degradation by proteolytic enzymes and lack of transport across the intestinal epithelium. Several strategies to deliver insulin orally have been proposed, but without much clinical or commercial success. Protein encapsulation into nanoparticles is regarded as a promising alternative to administer insulin orally because they have the ability to promote insulin paracellular or transcellular transport across the intestinal mucosa. In this review, different delivery systems intended to increase the oral bioavailability of insulin will be discussed, with a special focus on nanoparticulate carrier systems, as well as the efforts that pharmaceutical companies are making to bring to the market the first oral delivery system of insulin. The toxicological and safety data of delivery systems, the clinical value and progress of oral insulin delivery, and the future prospects in this research field will be also scrutinized.
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Affiliation(s)
- Pedro Fonte
- Centro de Investigação em Ciências da Saúde (CICS), Instituto Superior de Ciências da Saúde—Norte, CESPU, Gandra, Portugal
- REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Francisca Araújo
- Centro de Investigação em Ciências da Saúde (CICS), Instituto Superior de Ciências da Saúde—Norte, CESPU, Gandra, Portugal
| | - Salette Reis
- REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Bruno Sarmento
- Centro de Investigação em Ciências da Saúde (CICS), Instituto Superior de Ciências da Saúde—Norte, CESPU, Gandra, Portugal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Porto, Portugal
- INEB—Institute for Biomedical Engineering, University of Porto, Porto, Portugal
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Schoener CA, Carillo-Conde B, Hutson HN, Peppas NA. An inulin and doxorubicin conjugate for improving cancer therapy. J Drug Deliv Sci Technol 2013; 23:111-118. [PMID: 24734120 DOI: 10.1016/s1773-2247(13)50018-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Chemotherapy is one of the primary treatment mechanisms for treating cancer. Current chemotherapy is systemically delivered and causes significant side effects; therefore the development of new chemotherapeutic agents or enhancing the effectiveness of current chemotherapeutic could prove vital to patients and cancer care. The purpose of this research was to develop a new conjugate composed of doxorubicin (chemotherapeutic) and inulin (polysaccharide chain) and evaluate its potential as a new therapeutic agent for cancer treatment. The synergistic effect of inulin conjugated to doxorubicin has allowed the same cytotoxic response to be maintained or improved at lower doses as compared to doxorubicin. Supporting results include cytotoxicity profiles, calf thymus DNA binding studies, confocal microscopy, and transport studies.
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Affiliation(s)
- C A Schoener
- Department of Chemical Engineering, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA
| | - B Carillo-Conde
- Department of Biomedical Engineering, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA
| | - H N Hutson
- Department of Biomedical Engineering, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA
| | - N A Peppas
- Department of Chemical Engineering, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA ; Department of Biomedical Engineering, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA ; College of Pharmacy, The University of Texas at Austin, 1 University Station, C0400, Austin, TX 78712, USA
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