101
|
Gao Y, Zhang X, Jin X. Preparation and Properties of Minocycline-Loaded Carboxymethyl Chitosan Gel/Alginate Nonwovens Composite Wound Dressings. Mar Drugs 2019; 17:E575. [PMID: 31614468 PMCID: PMC6835814 DOI: 10.3390/md17100575] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/29/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
As derivatives from marine natural biomaterials, alginate-based and chitosan-based biomaterials are commonly used in wound dressings. Calcium alginate fiber (CAF) dressings possess excellent absorption and unique gel forming performance, but the low bioactivity limits its application in wound healing. Carboxymethyl chitosan (CM-Chit) has excellent antibacterial activity, but the gel structure with weak mechanical properties restricts its application. In this study, minocycline (Mino)/CM-Chit solution was coated on the surface of plasma treated CAF needle-punched nonwovens, and then Mino loaded CM-Chit gel/CAF nonwovens composite dressings were fabricated by EDC/NHS (1-3-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide) crosslinking. The dressings had a porous composite structure, which allowed them to quickly absorb and store a large number of wound exudates. Skin-like tensile performance allowed the dressings to provide a better healing environment. Antibacterial assay against Escherichia coli and Staphylococcus aureus indicated that the addition of Mino significantly improved the antibacterial activity of the wound dressings. The tight structure of CM-Chit gel prevented the burst release of Mino so that the dressings had antibacterial activity in a certain period of release time. Cell culture assay showed that the dressings had excellent cell biocompatibility. As new functional dressings, the prepared composite dressings had excellent potential in the clinical healing of wounds.
Collapse
Affiliation(s)
- Yingjun Gao
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
| | - Xing Zhang
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
| | - Xiangyu Jin
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
| |
Collapse
|
102
|
Liu Y, Yuan J, Ma H, Zhu C, Zhang D, Ding Y, Gao C, Wu Y. A type of itaconic acid modified polyacrylate with good mechanical performance and biocompatibility. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.104320] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
103
|
The determination of treatment effect of chitosan oligosaccharide in lambs with experimentally cryptosporidiosis. Small Rumin Res 2019; 180:27-34. [PMID: 32288211 PMCID: PMC7135297 DOI: 10.1016/j.smallrumres.2019.09.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 11/22/2022]
Abstract
Chitosan oligosaccharide contributes to clinical improvement in lambs with experimentally cryptosporidiosis. Chitosan oligosaccharide reduces C. parvum oocysts. Chitosan oligosaccharide can be used in the treatment of cryptosporidiosis.
In this study, it was aimed to investigate the efficacy of chitosan oligosaccharide administrations in different doses of experimental infected lambs with Cryptosporidium parvum. 32 male lambs were used in the study and the lambs were divided into 4 groups with 8 lambs in each group. Groups 1, 2 and 3, twice a day, were administered chitosan oligosaccharide at a dose of 100, 500, and 1000 mg/kg for 7 days, respectively, with milk replacer. In group 4, lambs with cryptosporidiosis were subjected to normal feeding as control without drug administration. Clinical examinations of lambs were made before treatment (day 0) and on days 1, 3, 5 and 7 after treatment and 5 ml of blood was collected from vena jugularis for blood analysis of all lambs. Weight changes of lambs were recorded at 0, 7, 14, and 21 days. Stool specimens were collected pre-treatment (day 0) and on days 1, 3, 5, 7, 14 and 21 post-treatment to determine oocyst excretion of lambs with cryptosporidiosis. Lambs with a mean oocyte counts >10 after stool examination were included to the treatment. Changes in clinical hematology, blood gases and biochemical parameters were observed during the course of treatment, but these changes were limited. Weight loss was observed at 7th day according to 0th day the lambs with experimental cryptosporidiosis but gradually weight increase was observed at 14th and 21st days and these changes were similar in all groups. Oocyst excretion decreased in all groups during treatment. According to 0th day, there was a significant (p < 0.05) decrease in oocyte excretions in the third day in group 1 and 2, and in day 5 in the group 3 and 4. Significant changes (p < 0.05) were observed in oocyst excretions on the third and fifth days among the groups. As a result, in lambs with experimental cryptosporidiosis, chitosan oligosaccharide improved in clinical signs and stool character shorter than the positive control group and the administration of chitosan oligosaccharide at doses of 100, 500 and 1000 mg/kg for 7 days significantly reduced oocyst excretion but not enough to remove cryptosporidiosis completely.
Collapse
|
104
|
Application of Chitosan in Bone and Dental Engineering. Molecules 2019; 24:molecules24163009. [PMID: 31431001 PMCID: PMC6720623 DOI: 10.3390/molecules24163009] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/08/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022] Open
Abstract
Chitosan is a deacetylated polysaccharide from chitin, the natural biopolymer primarily found in shells of marine crustaceans and fungi cell walls. Upon deacetylation, the protonation of free amino groups of the d-glucosamine residues of chitosan turns it into a polycation, which can easily interact with DNA, proteins, lipids, or negatively charged synthetic polymers. This positive-charged characteristic of chitosan not only increases its solubility, biodegradability, and biocompatibility, but also directly contributes to the muco-adhesion, hemostasis, and antimicrobial properties of chitosan. Combined with its low-cost and economic nature, chitosan has been extensively studied and widely used in biopharmaceutical and biomedical applications for several decades. In this review, we summarize the current chitosan-based applications for bone and dental engineering. Combining chitosan-based scaffolds with other nature or synthetic polymers and biomaterials induces their mechanical properties and bioactivities, as well as promoting osteogenesis. Incorporating the bioactive molecules into these biocomposite scaffolds accelerates new bone regeneration and enhances neovascularization in vivo.
Collapse
|
105
|
Patel N, Hatch D, Wells CM, Ahn D, Harris M, Jennings JA, Haggard W, Armstrong DG. Characteristics and clinical assessment of antibiotic delivery by chitosan sponge in the high-risk diabetic foot: a case series. J Wound Care 2019; 26:S32-S38. [PMID: 28379101 DOI: 10.12968/jowc.2017.26.sup4.s32] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The local delivery of antimicrobials is attractive for a number of reasons. Chitosan, a biodegradable polysaccharide sponge material, has been proposed as medium to deliver antibiotics directly to wounds. In this report we evaluate the safety and practicality of antimicrobial delivery via chitosan sponge. METHOD We present the clinical course and systemic absorption characteristics of three cases of people with diabetic foot wounds treated with antibiotic soaked chitosan sponge (Sentrex BioSponge, Bionova Medical, Germantown, TN). The antibiotic sponge was made by reconstituting 1.2g tobramycin or 100mg doxycycline in 10-15ml saline and saturating the sponge with the solution. The sponge was then applied to the wounds. Serum levels of each respective antibiotic were evaluated after application. Additional in vitro studies were conducted evaluating elution of antibiotics from the chitosan sponge at established minimum inhibitory concentrations (MIC) for Staphylococcus aureus over 28 days. RESULTS No patient experienced adverse local or systemic effects due to the sponge treatment. The measured serum levels applied antibiotics remained far less than established minimums after intravenous therapy. Each patient required further treatment, however local infection or contamination resolved during the course of their hospital stay after the chitosan/antibiotic application. CONCLUSION The use of antibiotic-impregnated chitosan sponges appears a safe and effective mechanism of local delivery of antimicrobials in wounds. Future studies and clinical trials are ongoing to confirm these results and to guide clinical applications.
Collapse
Affiliation(s)
- N Patel
- Tucson Medical Center/Midwestern University Podiatry Residency, 5301 E. Grant Road, Tucson Arizona, 85733, US
| | - D Hatch
- Tucson Medical Center/Midwestern University Podiatry Residency, 5301 E. Grant Road, Tucson Arizona, 85733, US
| | - C M Wells
- MS student, The University of Memphis, Department of Biomedical Engineering, 330 Engineering Technology, 3796 Norriswood Avenue, Memphis, TN, 38152, US
| | - D Ahn
- Undergraduate Student, The University of Memphis, Department of Biomedical Engineering, 330 Engineering Technology, 3796 Norriswood Avenue, Memphis, TN, 38152, US
| | - M Harris
- Undergraduate Student, The University of Memphis, Department of Biomedical Engineering, 330 Engineering Technology, 3796 Norriswood Avenue, Memphis, TN, 38152, US
| | - J A Jennings
- The University of Memphis, Department of Biomedical Engineering, 330 Engineering Technology, 3796 Norriswood Avenue, Memphis, TN, 38152, US
| | - W Haggard
- The University of Memphis, Department of Biomedical Engineering, 330 Engineering Technology, 3796 Norriswood Avenue, Memphis, TN, 38152, US
| | - D G Armstrong
- University of Arizona Southern Arizona Limb Salvage Alliance (SALSA), 1501 N. Campbell Ave, PO box 245018, Tucson, AZ, 85724, US
| |
Collapse
|
106
|
Ikono R, Vibriani A, Wibowo I, Saputro KE, Muliawan W, Bachtiar BM, Mardliyati E, Bachtiar EW, Rochman NT, Kagami H, Xianqi L, Nagamura-Inoue T, Tojo A. Nanochitosan antimicrobial activity against Streptococcus mutans and Candida albicans dual-species biofilms. BMC Res Notes 2019; 12:383. [PMID: 31287001 PMCID: PMC6613267 DOI: 10.1186/s13104-019-4422-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 06/29/2019] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE Chitosan nanoparticle (nanochitosan) has a broad antimicrobial spectrum against diverse pathogenic microorganisms. However, its effect on dental caries-associated microorganisms, such as Streptococcus mutans and Candida albicans is yet to be explored. These microorganisms are known for causing early childhood caries. Therefore, this study was aimed at investigating nanochitosan inhibition capacity against dual-species biofilms of S. mutans and C. albicans. In this study, nanochitosan antimicrobial activity is reported against mono and dual biofilm species of S. mutans and/or C. albicans at 3 and 18 h incubation time. Nanochitosan inhibition capacity was observed through biofilm mass quantity and cell viability. RESULTS The present study successfully synthesized nanochitosan with average diameter of approximately 20-30 nm, and also established dual-species biofilms of S. mutans and C. albicans in vitro. With nanochitosan treatment, the cell viability of both microorganisms significantly decreased with the increasing concentration of nanochitosan. There was no significant decrease in biofilm mass both in the dual and single-species biofilms after 3 h of incubation. However, greater inhibition of biofilm was observed at 18 h incubation.
Collapse
Affiliation(s)
- Radyum Ikono
- Division of Bionanotechnology, Nano Center Indonesia, Tangerang Selatan, Indonesia
- Department of Metallurgical Engineering, Sumbawa University of Technology, Sumbawa Besar, Indonesia
- Division of Molecular Therapy, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Agnia Vibriani
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, Indonesia
| | - Indra Wibowo
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, Indonesia
| | | | - Wibias Muliawan
- Division of Bionanotechnology, Nano Center Indonesia, Tangerang Selatan, Indonesia
| | - Boy Muchlis Bachtiar
- Oral Science Laboratory, Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Etik Mardliyati
- Center for Pharmaceutical and Medical Technology, Agency for the Assessment and Application of Technology [BPPT], Tangerang Selatan, Indonesia
| | - Endang Winiati Bachtiar
- Oral Science Laboratory, Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Nurul Taufiqu Rochman
- Research Center for Physics, Indonesian Institute of Science [LIPI], Tangerang Selatan, Indonesia
| | - Hideaki Kagami
- Department of Oral and Maxillofacial Surgery, Matsumoto Dental University, Shiojiri, Japan
- Department of General Medicine, IMSUT Hospital, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Li Xianqi
- Department of Oral and Maxillofacial Surgery, Matsumoto Dental University, Shiojiri, Japan
| | - Tokiko Nagamura-Inoue
- Department of Cell Processing and Transfusion, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Arinobu Tojo
- Division of Molecular Therapy, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| |
Collapse
|
107
|
Extraction of residual heavy metals from commercial chitosan and approach to preparation of oligochitosan hydrochloride. Carbohydr Polym 2019; 215:316-321. [DOI: 10.1016/j.carbpol.2019.03.072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 01/05/2023]
|
108
|
Zong C, Sun Y, Zhang N, Wang F, Li A, Li Q, Lyu Z. Synthesis of Chitosan-g-Poly(ethylene glycol)-g-Polyethyleneimine Copolymer and Its Research as Drug Carrier. Macromol Res 2019. [DOI: 10.1007/s13233-019-7113-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
109
|
Zhang E, Xing R, Liu S, Qin Y, Li K, Li P. Advances in chitosan-based nanoparticles for oncotherapy. Carbohydr Polym 2019; 222:115004. [PMID: 31320066 DOI: 10.1016/j.carbpol.2019.115004] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/27/2019] [Accepted: 06/17/2019] [Indexed: 01/02/2023]
Abstract
Chitosan has attracted considerable attention as an anti-tumor drug carrier material in recent years, which is due to its biocompatibility and biodegradability, as well as the simple and mild preparing techniques of drug-loaded nanoparticles. Chitosan-based nanoparticles can deliver various anti-tumor agents to specific tumor tissues by passive and active targeting mechanisms, including traditional chemotherapeutic agents, DNA or siRNA, proteins, photosensitizers and so on. In this review, we summarized the factors affecting the anti-tumor efficacy of chitosan-based nanoparticles, to aid exploring the function-structure relationship. The recent studies on chitosan-based nanoparticles for oncotherapy were highlighted, including their structures, properties and pharmacological effects. Finally, we offered our perspectives on the challenges and future development of this area.
Collapse
Affiliation(s)
- Enhui Zhang
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China
| | - Ronge Xing
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China.
| | - Song Liu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China
| | - Yukun Qin
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China
| | - Kecheng Li
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China
| | - Pengcheng Li
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, No. 1 Wenhai Road, Qingdao 266237, China.
| |
Collapse
|
110
|
Aljaeid BM, El-Say KM, Hosny KM. Chitosan-TPP nanoparticles stabilized by poloxamer for controlling the release and enhancing the bioavailability of doxazosin mesylate: in vitro, and in vivo evaluation. Drug Dev Ind Pharm 2019; 45:1130-1139. [PMID: 30884977 DOI: 10.1080/03639045.2019.1597105] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: Control the release and enhance the bioavailability of chitosan-doxazosin mesylate nanoparticles (DM-NPs). Significance: Improve DM bioavailability for the treatment of benign prostatic hyperplasia and hypertension. Methods: Plackett-Burman design was utilized to screen the variables affecting the quality of DM-NPs prepared by ionic gelation method. The investigated variables were initial drug load (X1), chitosan percentage (X2), tripolyphosphate sodium (TPP) percentage (X3), poloxamer percentage (X4), homogenization speed (X5), homogenization time (X6) and TPP addition rate (X7). The prepared DM-loaded NPs have been fully evaluated for particle size (Y1), Zeta potential (Y2), production yield (Y3), entrapment efficiency (Y4), loading capacity (Y5), initial burst (Y6), and cumulative drug release (Y7). Finally, DM pharmacokinetic has been investigated on healthy albino male rabbits by means of non-compartmental analysis. Results: The combination of variables showed variability of Y1, Y2, and Y3 equal to 122-710 nm, 3.49-23.63 mV, and 47.31-92.96%, respectively. While Y4 and Y5, reached 99.87%, and 8.53%, respectively. The prepared NPs revealed that X2, X3, and X4 are the variables that play the important role in controlling the release behavior of DM from the NPs. The in vivo pharmacokinetic results indicated the enhancement in bioavailability of DM by 7 folds compared to drug suspension and the mean residence time prolonged to 23.72 h compared to 4.7 h of drug suspension. Conclusion: The study proved that controlling the release of DM from NPs enhance its bioavailability and improve the compliance of patients with hypertension or benign prostatic hyperplasia.
Collapse
Affiliation(s)
- Bader M Aljaeid
- a Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah , Saudi Arabia
| | - Khalid M El-Say
- a Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah , Saudi Arabia.,b Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Cairo , Egypt
| | - Khaled M Hosny
- a Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah , Saudi Arabia.,c Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Beni-Suef University , Beni-Suef , Egypt
| |
Collapse
|
111
|
Chandrasekharan A, Hwang YJ, Seong KY, Park S, Kim S, Yang SY. Acid-Treated Water-Soluble Chitosan Suitable for Microneedle-Assisted Intracutaneous Drug Delivery. Pharmaceutics 2019; 11:E209. [PMID: 31052596 PMCID: PMC6572209 DOI: 10.3390/pharmaceutics11050209] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/22/2019] [Accepted: 04/29/2019] [Indexed: 12/13/2022] Open
Abstract
Chitosan has been widely used as a nature-derived polymeric biomaterial due to its high biocompatibility and abundance. However, poor solubility in aqueous solutions of neutral pH and multiple fabrication steps for the molding process limit its application to microneedle technology as a drug delivery carrier. Here, we present a facile method to prepare water-soluble chitosan and its application for sustained transdermal drug delivery. The water-soluble chitosan was prepared by acid hydrolysis using trifluoroacetic acid followed by dialysis in 0.1 M NaCl solutions. We successfully fabricated bullet-shaped microneedle (MN) arrays by the single molding process with neutral aqueous chitosan solutions (pH 6.0). The chitosan MN showed sufficient mechanical properties for skin insertion and, interestingly, exhibited slow dissolving behavior in wet conditions, possibly resulting from a physical crosslinking of chitosan chains. Chitosan MN patches loading rhodamine B, a model hydrophilic drug, showed prolonged release kinetics in the course of the dissolving process for more than 72 h and they were found to be biocompatible to use. Since the water-soluble chitosan can be used for MN fabrication in the mild conditions (neutral pH and 25 °C) required for the loading of bioactive agents such as proteins and achieve a prolonged release, this biocompatible chitosan MN would be suitable for sustained transdermal drug delivery of a diverse range of drugs.
Collapse
Affiliation(s)
- Ajeesh Chandrasekharan
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | - Young Jun Hwang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
- SNvia Co., Ltd, Busan 46241, Korea.
| | - Keum-Yong Seong
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | | | - Sodam Kim
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| | - Seung Yun Yang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Korea.
| |
Collapse
|
112
|
Mustafa MW, Ungphaiboon S, Phadoongsombut N, Pangsomboon K, Chelae S, Mahattanadul S. Effectiveness of an Alcohol-Free Chitosan–Curcuminoid Mouthwash Compared with Chlorhexidine Mouthwash in Denture Stomatitis Treatment: A Randomized Trial. J Altern Complement Med 2019; 25:552-558. [DOI: 10.1089/acm.2018.0459] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mian Waqar Mustafa
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand
| | - Suwipa Ungphaiboon
- Department of Pharmaceutical Technology, and Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand
| | - Narubodee Phadoongsombut
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand
| | - Kanokporn Pangsomboon
- Department of Stomatology, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Thailand
| | - Sureerat Chelae
- Division of Clinical Microbiology, Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Sirima Mahattanadul
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand
- Phytomedicine and Pharmaceutical Biotechnology Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand
| |
Collapse
|
113
|
Effects of some natural products from fungal and herbal sources on Giardia lamblia in vivo. Parasitology 2019; 146:1188-1198. [PMID: 31006397 DOI: 10.1017/s0031182019000325] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Giardia lamblia (G. lamblia) is the most widely known protozoan parasite that causes human gastrointestinal infection worldwide. Some natural compounds exhibited pivotal effects against different infectious diseases. In this research, the antigiardial activity and cytotoxicity of fungal chitosan, nano-chitosan, Rhamnus cathartica (R. cathartica) and emodin were evaluated in Balb/c mice. Genotyping of G. lamblia was assessed by PCR-RFLP technique. Different concentrations of mentioned compounds were used to check their antigiardial and cytotoxicity effects on human intestinal epithelial cells (HT-29) after 24, 48 and 72 h. The G. lamblia strain used in the current work was genotyped and revealed as an AII assemblage. All the concentration showed acceptable activity against G. lamblia cysts and trophozoites in comparison to the negative and positive controls (furazolidone and metronidazole) in vitro (P 0.05). The maximum mortality rate (100%) was achieved at 100 and 50 µg kg-1 concentrations after 48 and 72 h of exposure time, respectively. Our results provide significant information about the new antigiardial agent and proposed the nano-chitosan and emodin for the development of new drugs against G. lamblia in the future.
Collapse
|
114
|
Panão Costa J, Carvalho S, Jesus S, Soares E, Marques AP, Borges O. Optimization of Chitosan-α-casein Nanoparticles for Improved Gene Delivery: Characterization, Stability, and Transfection Efficiency. AAPS PharmSciTech 2019; 20:132. [PMID: 30820699 DOI: 10.1208/s12249-019-1342-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 02/12/2019] [Indexed: 11/30/2022] Open
Abstract
Among non-viral vectors, the cationic polymer chitosan has gained attention as a gene delivery system. We hypothesized that the addition of casein into the nanoparticle's structure would facilitate a proper gene transfer. The work herein presented aimed to optimize the production method of chitosan-casein nanoparticles (ChiCas NPs) and to test their ability as a gene delivery system. ChiCas NPs formulation optimization was carried out by analyzing several characteristics such as NP size, zeta potential, and chitosan and casein incorporation efficacy. The best formulation developed presented small and homogenous particle size (around 335 nm) and positive zeta potential (≈ + 38 mV), and showed to be stable for 34 weeks both, at 4°C and 20°C. The particles were further used to entrap or to adsorb DNA and form NPs-DNA complexes. In vitro transfection studies, carried out in COS-7 cells, suggested a low transfection efficiency of the different NPs:DNA ratios tested, comparatively to the positive control. Nonetheless, we could observe that the complexes with larger sizes presented better transfection results than those with smaller diameters. To conclude, ChiCas NPs have great technological potential since the preparation process is very simple, and the DNA incorporation efficacy is very high and shows to be physically very stable. The NPs:DNA ratio still needs to be optimized with the aim of achieving better transfection results and being able to anticipate a high gene expression on DNA-based vaccination studies.
Collapse
|
115
|
Lebre F, Lavelle EC, Borges O. Easy and effective method to generate endotoxin-free chitosan particles for immunotoxicology and immunopharmacology studies. ACTA ACUST UNITED AC 2019; 71:920-928. [PMID: 30805935 DOI: 10.1111/jphp.13082] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/25/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The cationic biopolymer chitosan (CH) has emerged as a promising candidate adjuvant due to its safety profile and immunostimulatory properties. The presence of endotoxin contamination in biomaterials is generally underappreciated and can generate misleading results. It is important to establish a convenient methodology to obtain large amounts of high quality chitosan nanoparticles for biomedical applications. METHODS We developed an easy method to generate endotoxin-free chitosan and assessed its purity using the Limulus amebocyte lysate assay and by measuring dendritic cell activation. KEY FINDINGS Purified chitosan-based formulations alone failed to induce production of the proinflammatory cytokines tumour necrosis factor alpha (TNF-α) and interleukin (IL)-6 in bone marrow-derived dendritic cells (BMDCs) generated from C57BL/6 mice, while maintaining its ability to promote IL-1β secretion in combination with the Toll-like receptor (TLR)-9 agonist, CpG. Moreover, BMDCs from C3H/HeN and TLR4-deficient mice, C3H/HeJ were stimulated with endotoxin-free chitosan-based formulations and no differences were observed in IL-6 and IL-1β secretion, excluding the involvement of TLR-4 in the immunomodulatory effects of chitosan. CONCLUSIONS The developed method provides simple guidelines for the production of endotoxin-free chitosan, ideal for biomedical applications.
Collapse
Affiliation(s)
- Filipa Lebre
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.,Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Science Institute, Trinity College, Dublin 2, Ireland.,Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and RCSI, Dublin 2, Ireland
| | - Ed C Lavelle
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Science Institute, Trinity College, Dublin 2, Ireland.,Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and RCSI, Dublin 2, Ireland
| | - Olga Borges
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| |
Collapse
|
116
|
Synthesis of chitosan biocomposites loaded with pyrrole-2-carboxylic acid and assessment of their antifungal activity against Aspergillus niger. Appl Microbiol Biotechnol 2019; 103:2985-3000. [PMID: 30747297 DOI: 10.1007/s00253-019-09670-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 01/27/2019] [Accepted: 01/29/2019] [Indexed: 12/20/2022]
Abstract
A wide variety of chitosan (CS) biomaterials have been loaded with different antimicrobial agents to improve the activity of CS against phytopathogenic fungi. Recently, the antimicrobial activity of 1H-pyrrole-2-carboxylic acid (PCA) has been reported as a secondary metabolite of Streptomyces griseus, which was identified as the main bioactive compound in the biological control. However, it is sensitive to light and its activity against filamentous fungi has not yet been reported. The aim of the present research work was to evaluate the biological activity of CS-PCA biocomposites for the control of Aspergillus niger. CS-PCA biocomposites were obtained through nanoprecipitation. In vitro antifungal activity was determined by viability assay, spore germination, morphometric analysis of spores and hyphae, and the analysis of cellular components by fluorescence microscopy. CS-PCA showed an average size and Z potential of 502 ± 72 nm and + 54.7 ± 15 mV, respectively. Micrographs demonstrated well-distributed biocomposites with an apparently spherical shape. A new signal at 1473 cm-1 in the FT-IR spectrum of the CS-PCA biocomposite was observed, confirming the presence of PCA in the composition of the CS-PCA nanosystem. CS-PCA biocomposites reduced the spores' viability by up to 58%. Effects on fungi morphometry, observed as an increase in the spores' average diameter, swelling, distortion, and an increase in the branching of hyphae, were observed. Fluorescence analysis showed oxidative stress and membrane and cell wall damage, mainly at early growth stages. The inhibitory effect against CS-resistant fungi, such as A. niger, opens a door for the control of CS-sensitive fungi.
Collapse
|
117
|
Bento D, Jesus S, Lebre F, Gonçalves T, Borges O. Chitosan Plus Compound 48/80: Formulation and Preliminary Evaluation as a Hepatitis B Vaccine Adjuvant. Pharmaceutics 2019; 11:pharmaceutics11020072. [PMID: 30744102 PMCID: PMC6409706 DOI: 10.3390/pharmaceutics11020072] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 11/16/2022] Open
Abstract
Current vaccine research is mostly based on subunit antigens. Despite the better toxicity profile of these antigens they are often poorly immunogenic, so adjuvant association has been explored as a strategy to obtain a potent vaccine formulation. Recently, mast cell activators were recognized as a new class of vaccine adjuvants capable of potentiating mucosal and systemic immune responses. In this study, a co-adjuvanted delivery system was developed and characterized, combining the mast cell activator C48/80 with chitosan nanoparticles (Chi-C48/80 NPs), and the results were compared with plain chitosan nanoparticles. The adsorption of model antigens onto the NP surface as well as the biocompatibility of the system was not affected by the incorporation of C48/80 in the formulation. The stability of the nanoparticles was demonstrated by studying the variation of size and zeta potential at different times, and the ability to be internalized by antigen presenting cells was confirmed by confocal microscopy. Vaccination studies with hepatitis B surface antigen loaded Chi-C48/80 NPs validated the adjuvanticity of the delivery system, demonstrating for the first time a successful association between a mast cell activator and chitosan nanoparticles as a vaccine adjuvant for hepatitis B virus, applied to a nasal vaccination strategy.
Collapse
Affiliation(s)
- Dulce Bento
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-0504 Coimbra, Portugal.
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
| | - Sandra Jesus
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-0504 Coimbra, Portugal.
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
| | - Filipa Lebre
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-0504 Coimbra, Portugal.
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
| | - Teresa Gonçalves
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-0504 Coimbra, Portugal.
- Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal.
| | - Olga Borges
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-0504 Coimbra, Portugal.
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
| |
Collapse
|
118
|
Optimization and in-vitro/in-vivo evaluation of doxorubicin-loaded chitosan-alginate nanoparticles using a melanoma mouse model. Int J Pharm 2019; 556:1-8. [DOI: 10.1016/j.ijpharm.2018.11.070] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 11/06/2018] [Accepted: 11/26/2018] [Indexed: 12/31/2022]
|
119
|
Aussel A, Boiziau C, L'Azou B, Siadous R, Delmond S, Montembault A, David L, Bordenave L, Thébaud NB. Cell and tissue responses at the interface with a chitosan hydrogel intended for vascular applications: in vitro and in vivo exploration. ACTA ACUST UNITED AC 2019; 14:025009. [PMID: 30609413 DOI: 10.1088/1748-605x/aafbf0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIMS The need for small caliber vessels to treat cardiovascular diseases has grown. However, synthetic polymers perform poorly in small-diameter applications. Chitosan hydrogels can provide a novel biological scaffold for vascular engineering. The goal of this study was to explore host cell and tissue behavior at the interface with chitosan-based scaffolds in vitro and in vivo. METHODS AND RESULTS in vitro, we assessed the ability of endothelial cells lining chitosan hydrogels to produce tissue factor (TF), thrombomodulin (TM) and nitric oxide. We showed that endothelial cells behave as a native endothelium since under stimulation, TF and TM expression increased and decreased, respectively. Endothelial cells seeded on chitosan produced nitric oxide, but no change was observed under stimulation. After in vivo subcutaneous implantation of chitosan hydrogels in rats, macrophage activation phenotypes, playing a crucial role in biomaterial/tissue, were explored by immunohistochemistry. Our results suggested a balance between pro- and anti-inflammatory signals since we observed an inflammatory response in favor of macrophage M2 phenotype. CONCLUSION in vitro exploration of endothelial cell response at the interface with chitosan hydrogel showed a functional endothelium and in vivo exploration of tissue response revealed a biointegration of chitosan hydrogels.
Collapse
Affiliation(s)
- Audrey Aussel
- Univ. Bordeaux, BIOTIS, F-33000 Bordeaux, France. CHU Bordeaux, Pôle Odontologie et Santé Buccale, F-33000 Bordeaux, France
| | | | | | | | | | | | | | | | | |
Collapse
|
120
|
Anticancer Activity of Chitosan, Chitosan Derivatives, and Their Mechanism of Action. Int J Biomater 2018; 2018:2952085. [PMID: 30693034 PMCID: PMC6332982 DOI: 10.1155/2018/2952085] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 11/26/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022] Open
Abstract
Tailoring of chitosan through the involvement of its amino, acetamido, and hydroxy groups can give derivatives of enhanced solubility and remarkable anticancer activity. The general mechanism of such activity is associated with the disturbances in normal functioning of cell cycle, interference to the central dogma of biological system from DNA to RNA to protein or enzymatic synthesis, and the disruption of hormonal path to biosynthesis to inhibit the growth of cancer cells. Both chitosan and its various derivatives have been reported to selectively permeate through the cancer cell membranes and show anticancer activity through the cellular enzymatic, antiangiogenic, immunoenhancing, antioxidant defense mechanism, and apoptotic pathways. They get sequestered from noncancer cells and provide their enhanced bioavailability in cancer cells in a sustained release manner. This review presents the putative mechanisms of anticancer activity of chitosan and mechanistic approaches of structure activity relation upon the modification of chitosan through functionalization, complex formation, and graft copolymerization to give different derivatives.
Collapse
|
121
|
Gooneh-Farahani S, Naimi-Jamal MR, Naghib SM. Stimuli-responsive graphene-incorporated multifunctional chitosan for drug delivery applications: a review. Expert Opin Drug Deliv 2018; 16:79-99. [PMID: 30514124 DOI: 10.1080/17425247.2019.1556257] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Recently, the use of chitosan (CS) in the drug delivery has reached an acceptable maturity. Graphene-based drug delivery is also increasing rapidly due to its unique physical, mechanical, chemical, and electrical properties. Therefore, the combination of CS and graphene can provide a promising carrier for the loading and controlled release of therapeutic agents. AREAS COVERED In this review, we will outline the advantages of this new drug delivery system (DDS) in association with CS and graphene alone and will list the various forms of these carriers, which have been studied in recent years as DDSs. Finally, we will discuss the application of this hybrid composite in other fields. EXPERT OPINION The introducing the GO amends the mechanical characteristics of CS, which is a major problem in the use of CS-based carriers in drug delivery due to burst release in a CS-based controlled release system through the poor mechanical strength of CS. Many related research on this area are still not fully unstated and occasionally they seem inconsistent in spite of the intent to be complementary. Therefore, a sensitive review may be needed to understand the role of graphene in CS/graphene carriers for future drug delivery applications.
Collapse
Affiliation(s)
- Sahar Gooneh-Farahani
- a Research Laboratory of Green Organic Synthesis and Polymers, Chemistry Department , Iran University of Science and Technology (IUST) , Tehran , Iran
| | - M Reza Naimi-Jamal
- a Research Laboratory of Green Organic Synthesis and Polymers, Chemistry Department , Iran University of Science and Technology (IUST) , Tehran , Iran
| | - Seyed Morteza Naghib
- b Nanotechnology Department, School of New Technologies , Iran University of Science and Technology (IUST) , Tehran , Iran
| |
Collapse
|
122
|
Erfolgreiche präklinische Blutstillung mit Chitosan-Gaze. Notf Rett Med 2018. [DOI: 10.1007/s10049-018-0431-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
123
|
Kornev VA, Grebenik EA, Solovieva AB, Dmitriev RI, Timashev PS. Hydrogel-assisted neuroregeneration approaches towards brain injury therapy: A state-of-the-art review. Comput Struct Biotechnol J 2018; 16:488-502. [PMID: 30455858 PMCID: PMC6232648 DOI: 10.1016/j.csbj.2018.10.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 12/16/2022] Open
Abstract
Recent years have witnessed the development of an enormous variety of hydrogel-based systems for neuroregeneration. Formed from hydrophilic polymers and comprised of up to 90% of water, these three-dimensional networks are promising tools for brain tissue regeneration. They can assist structural and functional restoration of damaged tissues by providing mechanical support and navigating cell fate. Hydrogels also show the potential for brain injury therapy due to their broadly tunable physical, chemical, and biological properties. Hydrogel polymers, which have been extensively implemented in recent brain injury repair studies, include hyaluronic acid, collagen type I, alginate, chitosan, methylcellulose, Matrigel, fibrin, gellan gum, self-assembling peptides and proteins, poly(ethylene glycol), methacrylates, and methacrylamides. When viewed as tools for neuroregeneration, hydrogels can be divided into: (1) hydrogels suitable for brain injury therapy, (2) hydrogels that do not meet basic therapeutic requirements and (3) promising hydrogels which meet the criteria for further investigations. Our analysis shows that fibrin, collagen I and self-assembling peptide-based hydrogels display very attractive properties for neuroregeneration.
Collapse
Affiliation(s)
- Vladimir A. Kornev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., Moscow 119991, Russian Federation
| | - Ekaterina A. Grebenik
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., Moscow 119991, Russian Federation
| | - Anna B. Solovieva
- N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., Moscow 117977, Russian Federation
| | - Ruslan I. Dmitriev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., Moscow 119991, Russian Federation
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Peter S. Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., Moscow 119991, Russian Federation
- N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., Moscow 117977, Russian Federation
- Institute of Photonic Technologies, Research Center “Crystallography and Photonics” Russian Academy of Sciences, 2 Pionerskaya st., Troitsk, Moscow 108840, Russian Federation
| |
Collapse
|
124
|
Hamedi H, Moradi S, Hudson SM, Tonelli AE. Chitosan based hydrogels and their applications for drug delivery in wound dressings: A review. Carbohydr Polym 2018; 199:445-460. [DOI: 10.1016/j.carbpol.2018.06.114] [Citation(s) in RCA: 319] [Impact Index Per Article: 53.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 01/06/2023]
|
125
|
Self-assembled amphiphilic chitosan nanoparticles for quercetin delivery to breast cancer cells. Eur J Pharm Biopharm 2018; 131:203-210. [DOI: 10.1016/j.ejpb.2018.08.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/05/2018] [Accepted: 08/22/2018] [Indexed: 01/25/2023]
|
126
|
Avila L, Cascone O, Biscoglio M, Fingermann M. An effective, simple and low-cost pretreatment for culture clarification in tetanus toxoid production. Prep Biochem Biotechnol 2018; 48:808-814. [PMID: 30265189 DOI: 10.1080/10826068.2018.1509085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chemically inactivated tetanus toxin (tetanus toxoid, TT), purified from cultures of a virulent Clostridium tetani strain, is the active pharmaceutical ingredient of anti-tetanus vaccines. Culture clarification for TT production and is usually performed by filtration-based techniques. Final clarification of the culture supernatant is achieved by passage through 0.2 µm pore size filtering membranes. Large particles removal (primary clarification) before final filtration (secondary clarification) reduces costs of the overall clarification process. With this aim, chitosan-induced particle aggregation was assessed as an alternative for primary clarification. Three chitosan variants were tested with similar results. Optimal clarification of culture supernatant was achieved by the addition of 8 mg chitosan per l of culture. Extrapolation analysis of filter sizing results indicate that 100 l of chitosan-treated supernatant can be finally filtered with a 0.6 m2 normal filtration cartridge of 0.45 + 0.2 µm pore size. The clarified material is compatible with current standard downstream processing techniques for TT purification. Thus, chitosan-induced particle aggregation is a suitable operation for primary clarification.
Collapse
Affiliation(s)
- Lucía Avila
- a INPB, ANLIS "Dr. Carlos G. Malbrán" , Vélez Sársfield 563 , Buenos Aires , Argentina
| | - Osvaldo Cascone
- a INPB, ANLIS "Dr. Carlos G. Malbrán" , Vélez Sársfield 563 , Buenos Aires , Argentina.,b NANOBIOTEC - Facultad de Farmacia y Bioquímica , Junín 956 , Buenos Aires , Argentina
| | - Mirtha Biscoglio
- a INPB, ANLIS "Dr. Carlos G. Malbrán" , Vélez Sársfield 563 , Buenos Aires , Argentina.,c IQUIFIB - Facultad de Farmacia y Bioquímica , Junín 956 , Buenos Aires , Argentina
| | - Matías Fingermann
- a INPB, ANLIS "Dr. Carlos G. Malbrán" , Vélez Sársfield 563 , Buenos Aires , Argentina
| |
Collapse
|
127
|
Lebre F, Pedroso de Lima MC, Lavelle EC, Borges O. Mechanistic study of the adjuvant effect of chitosan-aluminum nanoparticles. Int J Pharm 2018; 552:7-15. [PMID: 30244149 DOI: 10.1016/j.ijpharm.2018.09.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 12/31/2022]
Abstract
The use of tailored particle-based adjuvants constitutes a promising way to enhance antigen-specific humoral and cellular immune responses. However, a thorough understanding of the mechanisms underlying their adjuvanticity is crucial to generate more effective vaccines. We studied the ability of chitosan-aluminum nanoparticles (CH-Al NPs), which combine the immunostimulatory effects of chitosan and aluminum salts, to promote dendritic cell activation, assess their impact on innate and adaptive immune responses, and compare the results to those reported for conventional chitosan particles (CH-Na NPs). All tested CH-NP formulations were capable of modulating cytokine secretion by dendritic cells. CH-Al NPs promoted NLRP3 inflammasome activation, enhancing the release of IL-1β without significantly inhibiting Th1 and Th17 cell-polarizing cytokines, IL-12p70 or IL-23, and induced DC maturation, but did not promote pro-inflammatory cytokine production on their own. In vivo results showed that mice injected with CH-Al NPs generated a local inflammatory response comparable to that elicited by the vaccine adjuvant alum. Importantly, after subcutaneous immunization with CH-Al NPs combined with the hepatitis B surface antigen (HBsAg), mice developed antigen-specific IgG titers in serum, nasal and vaginal washes. Overall, our results established CH-Al NPs as a potential adjuvant to enhance both innate and adaptive immune responses.
Collapse
Affiliation(s)
- F Lebre
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland; Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2 D02 PN40, Ireland
| | - M C Pedroso de Lima
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ed C Lavelle
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland; Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2 D02 PN40, Ireland
| | - O Borges
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
| |
Collapse
|
128
|
Tsai CH, Wang PY, Lin IC, Huang H, Liu GS, Tseng CL. Ocular Drug Delivery: Role of Degradable Polymeric Nanocarriers for Ophthalmic Application. Int J Mol Sci 2018; 19:E2830. [PMID: 30235809 PMCID: PMC6164366 DOI: 10.3390/ijms19092830] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/11/2018] [Accepted: 09/14/2018] [Indexed: 12/11/2022] Open
Abstract
Ocular drug delivery has been a major challenge for clinical pharmacologists and biomaterial scientists due to intricate and unique anatomical and physiological barriers in the eye. The critical requirement varies from anterior and posterior ocular segments from a drug delivery perspective. Recently, many new drugs with special formulations have been introduced for targeted delivery with modified methods and routes of drug administration to improve drug delivery efficacy. Current developments in nanoformulations of drug carrier systems have become a promising attribute to enhance drug retention/permeation and prolong drug release in ocular tissue. Biodegradable polymers have been explored as the base polymers to prepare nanocarriers for encasing existing drugs to enhance the therapeutic effect with better tissue adherence, prolonged drug action, improved bioavailability, decreased toxicity, and targeted delivery in eye. In this review, we summarized recent studies on sustained ocular drug/gene delivery and emphasized on the nanocarriers made by biodegradable polymers such as liposome, poly lactic-co-glycolic acid (PLGA), chitosan, and gelatin. Moreover, we discussed the bio-distribution of these nanocarriers in the ocular tissue and their therapeutic applications in various ocular diseases.
Collapse
Affiliation(s)
- Cheng-Han Tsai
- Graduate Institute of Biomedical Materials & Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Peng-Yuan Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | - I-Chan Lin
- Department of Ophthalmology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan.
- Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Hu Huang
- Aier Eye Institute; Aier School of Ophthalmology, Central South University, Changsha 410008, China.
| | - Guei-Sheung Liu
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS 7000, Australia.
- Ophthalmology, Department of Surgery, University of Melbourne, East Melbourne, VIC 3002, Australia.
- Department of Ophthalmology, Jinan University, Guangzhou 510632, China.
| | - Ching-Li Tseng
- Graduate Institute of Biomedical Materials & Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
- Institute of International PhD Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
- International PhD Program in Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| |
Collapse
|
129
|
Bezrodnykh EA, Blagodatskikh IV, Kulikov SN, Zelenikhin PV, Yamskov IA, Tikhonov VE. Consequences of chitosan decomposition by nitrous acid: Approach to non-branched oligochitosan oxime. Carbohydr Polym 2018; 195:551-557. [DOI: 10.1016/j.carbpol.2018.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/20/2018] [Accepted: 05/03/2018] [Indexed: 01/28/2023]
|
130
|
Yu X, Jing Y, Gao H. Enhanced adsorption of xylenol orange from aqueous solutions by polyethylenimine-grafted chitosan microspheres. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xueqing Yu
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin, 300130 China
| | - Yingjun Jing
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin, 300130 China
| | - Hui Gao
- School of Chemical Engineering and Technology; Hebei University of Technology; Tianjin, 300130 China
| |
Collapse
|
131
|
Chiesa E, Pisani S, Colzani B, Dorati R, Conti B, Modena T, Braekmans K, Genta I. Intra-Articular Formulation of GE11-PLGA Conjugate-Based NPs for Dexamethasone Selective Targeting-In Vitro Evaluation. Int J Mol Sci 2018; 19:E2304. [PMID: 30082640 PMCID: PMC6121689 DOI: 10.3390/ijms19082304] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 12/16/2022] Open
Abstract
Selectively targeted nanoscale drug delivery systems have recently emerged as promising intravenously therapeutic option for most chronic joint diseases. Here, a newly synthetized dodecapeptide (GE11)-polylactide-co-glycolide (PLGA)-based conjugate was used to prepare smart nanoparticles (NPs) intended for intra-articular administration and for selectively targeting Epidermal Growth Factor Receptor (EGFR). GE11-PLGA conjugate-based NPs are specifically uptaken by EGFR-overexpressed fibroblast; such as synoviocytes; which are the primarily cellular component involved in the development of destructive joint inflammation. The selective uptake could help to tune drug effectiveness in joints and to decrease local and systemic side effects. Dexamethasone (DXM) is a glucorticoid drug commonly used in joint disease treatment for both systemic and local administration route. In the present research; DXM was efficiently loaded into GE11-PLGA conjugate-based NPs through an eco-friendly nanoprecipitation method set up for this purpose. DXM loaded GE11-PLGA conjugate-based NPs revealed satisfactory ex vivo cytocompatibility; with proper size (≤150 nm) and good dimensional stability in synovial fluid. Intra-articular formulation was developed embedding DXM loaded GE11-PLGA conjugate-based NPs into thermosetting chitosan-based hydrogel; forming a biocompatible composite hydrogel able to quickly turn from liquid state into gel state at physiological temperature; within 15 min. Moreover; the use of thermosetting chitosan-based hydrogel extends the local release of active agent; DXM.
Collapse
Affiliation(s)
- Enrica Chiesa
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Silvia Pisani
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Barbara Colzani
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Rossella Dorati
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Tiziana Modena
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| | - Kevin Braekmans
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium.
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, V.le Taramelli 12, 27100 Pavia (PV), Italy.
| |
Collapse
|
132
|
Agrawal M, Saraf S, Saraf S, Antimisiaris SG, Chougule MB, Shoyele SA, Alexander A. Nose-to-brain drug delivery: An update on clinical challenges and progress towards approval of anti-Alzheimer drugs. J Control Release 2018; 281:139-177. [DOI: 10.1016/j.jconrel.2018.05.011] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/10/2018] [Accepted: 05/10/2018] [Indexed: 01/02/2023]
|
133
|
Fathi P, Sikorski M, Christodoulides K, Langan K, Choi YS, Titcomb M, Ghodasara A, Wonodi O, Thaker H, Vural M, Behrens A, Kofinas P. Zeolite-loaded alginate-chitosan hydrogel beads as a topical hemostat. J Biomed Mater Res B Appl Biomater 2018; 106:1662-1671. [PMID: 28842967 PMCID: PMC5826813 DOI: 10.1002/jbm.b.33969] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 07/21/2017] [Accepted: 07/29/2017] [Indexed: 11/06/2022]
Abstract
Hemorrhage is the leading cause of preventable death after a traumatic injury, and the largest contributor to loss of productive years of life. Hemostatic agents accelerate hemostasis and help control hemorrhage by concentrating coagulation factors, acting as procoagulants and/or interacting with erythrocytes and platelets. Hydrogel composites offer a platform for targeting both mechanical and biological hemostatic mechanisms. The goal of this work was to develop hydrogel particles composed of chitosan, alginate, and zeolite, and to assess their potential to promote blood coagulation via multiple mechanisms: erythrocyte adhesion, factor concentration, and the ability to serve as a mechanical barrier to blood loss. Several particle compositions were synthesized and characterized. Hydrogel bead composition was optimized to achieve the highest swelling capacity, greatest erythrocyte adhesion, and minimal in vitro cytotoxicity. These results suggest a polymer hydrogel-aluminosilicate composite material may serve as a platform for an effective hemostatic agent that incorporates multiple mechanisms of action. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1662-1671, 2018.
Collapse
Affiliation(s)
- Parinaz Fathi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Michael Sikorski
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | | | - Kristen Langan
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Yoon Sun Choi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Michael Titcomb
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Anjali Ghodasara
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Omasiri Wonodi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Hemi Thaker
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Mert Vural
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
| | - Adam Behrens
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | - Peter Kofinas
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742
| |
Collapse
|
134
|
Cocoa Pod Husk Pectin Intended as a Pharmaceutical Excipient Has No Adverse Effects on Haematological Parameters in Sprague Dawley Rats. JOURNAL OF PHARMACEUTICS 2018; 2018:1459849. [PMID: 29955438 PMCID: PMC6000902 DOI: 10.1155/2018/1459849] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/11/2018] [Accepted: 04/29/2018] [Indexed: 11/17/2022]
Abstract
Natural polymer research has recently become the focus of intensive research in the quest for new enabling excipients for novel drugs in pharmaceutical formulation for optimal treatment outcomes. Evaluations of some excipients have shown deleterious haematological effects of varying extents on the safety profile of these excipients. A 90-day subchronic toxicity study was conducted to evaluate the influence of cocoa pod husk (CPH) pectin on indicators for haematotoxicity. Male and female Sprague Dawley rats (SDRs) were fed with CPH pectin in doses up to 71.4 mg/kg. The effects of CPH pectin on the haematological indices, direct and total bilirubin, and the spleen were determined. The results indicated that CPH pectin did not induce any untoward toxic effects on the haematological indices, bilirubin levels, and the spleen. There were, however, elevations in MCV at day 30, which was not sustained after the 90 days. The data obtained from this study did not reveal any remarkable findings of toxicological relevance to the haematopoietic system.
Collapse
|
135
|
Immobilized titanium dioxide/powdered activated carbon system for the photocatalytic adsorptive removal of phenol. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0062-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
136
|
Nanofiber technology in the ex vivo expansion of cord blood-derived hematopoietic stem cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1707-1718. [PMID: 29753127 DOI: 10.1016/j.nano.2018.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 02/07/2023]
Abstract
Umbilical cord blood (CB) can be used as an alternative source of hematopoietic stem cells (HSCs) for transplantation in hematological and non-hematological disorders. Despite several recognized advantages the limited cell number in CB one unit still restricts its clinical use. The success of transplantation greatly depends on the levels of total nucleated cell and CD34+ cell counts. Thus, many ex vivo strategies have been developed within the last decade in order to solve this obstacle, with more or less success, mainly determined by the degree of difficulty related with maintaining HSCs self-renewal and stemness properties after long-term expansion. Different research groups have developed very promising and diverse CB-derived HSC expansion strategies using nanofiber scaffolds. Here we review the state-of-the-art of nanofiber technology-based CB-derived HSC expansion.
Collapse
|
137
|
Application of Chitin/Chitosan and Their Derivatives in the Papermaking Industry. Polymers (Basel) 2018; 10:polym10040389. [PMID: 30966425 PMCID: PMC6415250 DOI: 10.3390/polym10040389] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/11/2018] [Accepted: 03/26/2018] [Indexed: 11/17/2022] Open
Abstract
Chitin/chitosan and their derivatives have become of great interest as functional materials in many fields within the papermaking industry. They have been employed in papermaking wet-end, paper surface coating, papermaking wastewater treatment, and other sections of the papermaking industry due to their structure and chemical properties. The purpose of this paper is to briefly discuss the application of chitin/chitosan and their derivatives in the papermaking industry. The development of their application in the papermaking area will be reviewed and summarized.
Collapse
|
138
|
Ahsan SM, Thomas M, Reddy KK, Sooraparaju SG, Asthana A, Bhatnagar I. Chitosan as biomaterial in drug delivery and tissue engineering. Int J Biol Macromol 2018; 110:97-109. [DOI: 10.1016/j.ijbiomac.2017.08.140] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/16/2017] [Accepted: 08/27/2017] [Indexed: 12/30/2022]
|
139
|
Pinto CA, Saripella KK, Loka NC, Neau SH. Development and Characterization of Chitosan Cross-Linked With Tripolyphosphate as a Sustained Release Agent in Tablets, Part I: Design of Experiments and Optimization. J Pharm Sci 2018; 107:1063-1075. [DOI: 10.1016/j.xphs.2017.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 11/04/2017] [Accepted: 11/07/2017] [Indexed: 01/15/2023]
|
140
|
Polymeric nanoparticles for topical delivery of alpha and beta arbutin: preparation and characterization. Drug Deliv Transl Res 2018; 9:482-496. [DOI: 10.1007/s13346-018-0508-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
141
|
Recombinant batroxobin-coated nonwoven chitosan as hemostatic dressing for initial hemorrhage control. Int J Biol Macromol 2018. [PMID: 29514041 DOI: 10.1016/j.ijbiomac.2018.03.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The choice of hemostat is determined by the situation and the degree of hemorrhage. One common hemostat, the nonwoven dressing, is easy to handled and controls severe bleeding on wider wounds. In this study, chitosan-based nonwoven dressings with recombinant batroxobin (rBat) were used as efficacious hemostatic dressing agents. Hemostatic agents need to absorb blood quickly in the early stages of blood coagulation cascade to rapidly and effectively control of excessive hemorrhages. To date, most studies of hemostatic agents focused on a single material and hemostats composed of multiple materials have not been studied sufficiently. Thus, we made a chitosan dressing coated with rBat and investigated the microstructure, mechanical properties, hemostatic efficacy, and clotting properties of the coated dressing. Our results showed that the rBat had a synergetic effect on chitosan that improved blood coagulation. Furthermore, the dressing had excellent bleeding control in an Sprague-Dawley (SD) rat femoral artery hemorrhage model. In conclusion, hemostasis can be improved by combining a chitosan-based nonwoven dressing with other agents, and rBat-coated chitosan-based nonwoven dressings have enormous potential to improve blood coagulation.
Collapse
|
142
|
Kootala S, Filho L, Srivastava V, Linderberg V, Moussa A, David L, Trombotto S, Crouzier T. Reinforcing Mucus Barrier Properties with Low Molar Mass Chitosans. Biomacromolecules 2018; 19:872-882. [PMID: 29451983 DOI: 10.1021/acs.biomac.7b01670] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The mucus gel covers the wet epithelia that forms the inner lining of the body. It constitutes our first line of defense protecting the body from infections and other deleterious molecules. Failure of the mucus barrier can lead to the inflammation of the mucosa such as in inflammatory bowel diseases. Unfortunately, there are no effective strategies that reinforce the mucus barrier properties to recover or enhance its ability to protect the epithelium. Herein, we describe a mucus engineering approach that addresses this issue where we physically cross-link the mucus gel with low molar mass chitosan variants to reinforce its barrier functions. We tested the effect of these chitosans on mucus using in-lab purified porcine gastric mucins, which mimic the native properties of mucus, and on mucus-secreting HT29-MTX epithelial cell cultures. We found that the lowest molar mass chitosan variant (degree of polymerization of 8) diffuses deep into the mucus gels while physically cross-linking the mucin polymers, whereas the higher molar mass chitosan variants (degree of polymerization of 52 and 100) interact only superficially. The complexation resulted in a tighter mucin polymer mesh that slowed the diffusion of dextran polymers and of the cholera toxin B subunit protein through the mucus gels. These results uncover a new use for low molar mass mucoadhesive polymers such as chitosans as noncytotoxic mucosal barrier enhancers that could be valuable in the prevention and treatment of mucosal diseases.
Collapse
Affiliation(s)
- Sujit Kootala
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Glycoscience , SE-100 44 Stockholm , Sweden
| | - Luimar Filho
- Department of Engineering Sciences, Applied Materials Science , Uppsala University , 752 37 Uppsala , Sweden
| | - Vaibhav Srivastava
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Glycoscience , SE-100 44 Stockholm , Sweden
| | - Victoria Linderberg
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Glycoscience , SE-100 44 Stockholm , Sweden
| | - Amani Moussa
- Ingénierie des Matériaux Polymères (IMP), CNRS UMR 5223 , Université Claude Bernard Lyon 1, Univ Lyon , 69622 Villeurbanne , France
| | - Laurent David
- Ingénierie des Matériaux Polymères (IMP), CNRS UMR 5223 , Université Claude Bernard Lyon 1, Univ Lyon , 69622 Villeurbanne , France
| | - Stéphane Trombotto
- Ingénierie des Matériaux Polymères (IMP), CNRS UMR 5223 , Université Claude Bernard Lyon 1, Univ Lyon , 69622 Villeurbanne , France
| | - Thomas Crouzier
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Glycoscience , SE-100 44 Stockholm , Sweden
| |
Collapse
|
143
|
Wang X, Guan J, Zhuang X, Li Z, Huang S, Yang J, Liu C, Li F, Tian F, Wu J, Shu Z. Exploration of Blood Coagulation of N-Alkyl Chitosan Nanofiber Membrane in Vitro. Biomacromolecules 2018; 19:731-739. [PMID: 29309730 DOI: 10.1021/acs.biomac.7b01492] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
N-Alkylated chitosan (NACS) may improve the blood clotting efficiency of chitosan (CS). To study its blood coagulation capability, a series of NACSs with various carbon chain lengths and degrees of substitution (DS) of alkyl groups were synthesized and characterized by FTIR, NMR, elemental analysis, and X-ray diffraction (XRD). The corresponding NACS nanofiber membranes (NACS-NM) were subsequently fabricated by electronic spinning technique. SEM, XRD, DSC, surface area, porosity, contact angle, blood absorption, and mechanical properties were used to characterize the CS-NM/NACS-NM. Moreover, cytotoxicity, coagulation, activated partial thromboplastin time, plasma prothrombin time, thrombin time, and platelet aggregation tests were performed to evaluate the biocompatibility and blood coagulation properties of NACS-NM. The results showed that NACS-NM was not cytotoxic. NACS-NM with DS of 19.25% for N-hexane CS (CS6b), 17.87% for N-dodecane CS (CS12b), and 8.97% for N-octadecane CS (CS18a) exhibited good blood clotting performance. Moreover, NACS-NMs favored the activation of coagulation factors and platelets. In addition, intracellular Ca2+ was not related to platelet activation. The above results suggested that NACS-NM would be an effective hemostatic agent.
Collapse
Affiliation(s)
- Xiaoyan Wang
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China.,Department of Textile , Tianjin Polytechnic University , No. 399 Binshui West Road , Xiqing District, Tianjin 300387 , China
| | - Jing Guan
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Xupin Zhuang
- Department of Textile , Tianjin Polytechnic University , No. 399 Binshui West Road , Xiqing District, Tianjin 300387 , China
| | - Zhihong Li
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Shujie Huang
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Jian Yang
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Changjun Liu
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Fan Li
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Feng Tian
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Jimin Wu
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| | - Zhan Shu
- Key laboratory of Medical Equipment , Academy of Military Medical Sciences , No. 106 Wandong Road , Hedong District, Tianjin 300161 , China
| |
Collapse
|
144
|
Statistical Design of Experiment (DoE) based development and optimization of DB213 in situ thermosensitive gel for intranasal delivery. Int J Pharm 2018; 539:50-57. [PMID: 29366939 DOI: 10.1016/j.ijpharm.2018.01.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 01/10/2018] [Accepted: 01/18/2018] [Indexed: 01/03/2023]
Abstract
DB213 is an HIV-1 replication inhibitor targeting the Central Nervous System for the treatment of HIV-associated neurocognitive disorders. Current study aims to develop an in situ thermosensitive gelling system for intranasal delivery of DB213 facilitated by Statistical Design of Experiment (DoE) to conduct a more efficient experimentation by extracting the maximum amount of information from limited experiments. In our current study, information was extracted from twenty-five experimental designs from MODDE® Software and a mathematical model was successfully developed to predict formulations to achieve desired performance as well as to analyze relationships between the amount of Pluronic F-127, Pluronic F-68, Chitosan, DB213 and the performances of in situ thermosensitive gels. Based on DoE, in situ thermosensitive gels of 1% DB213 (F1) and 5% DB213 (F2) were developed for further in vivo bioavailability and brain uptake evaluations in Sprague-Dawley rats and C57BL/6 mice, respectively. In comparison to DB213 water solution, intranasal administrations of F1 at 1 mg/kg in rats and F2 at 25 mg/kg in mice demonstrated relative bioavailabilities of 145% and 165% with significant increase in brain uptake.
Collapse
|
145
|
Guo M, Dong Y, Xiao J, Gu R, Ding M, Huang T, Li J, Zhao N, Liao H. In vivoimmuno-reactivity analysis of the porous three-dimensional chitosan/SiO2and chitosan/SiO2/hydroxyapatite hybrids. J Biomed Mater Res A 2018; 106:1223-1235. [DOI: 10.1002/jbm.a.36320] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/11/2017] [Accepted: 12/21/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Mengxia Guo
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Yifan Dong
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 China
| | - Jiangwei Xiao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Ruicai Gu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Maochao Ding
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Tao Huang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Junhua Li
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| | - Naru Zhao
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 China
| | - Hua Liao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Department of Anatomy; Southern Medical University, No. 1838, Guangzhou Avenue North; Guangzhou 510515 China
| |
Collapse
|
146
|
Jesus S, Fragal EH, Rubira AF, Muniz EC, Valente AJM, Borges O. The Inclusion of Chitosan in Poly-ε-caprolactone Nanoparticles: Impact on the Delivery System Characteristics and on the Adsorbed Ovalbumin Secondary Structure. AAPS PharmSciTech 2018; 19:101-113. [PMID: 28612189 DOI: 10.1208/s12249-017-0822-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/24/2017] [Indexed: 01/27/2023] Open
Abstract
This report extensively explores the benefits of including chitosan into poly-ε-caprolactone (PCL) nanoparticles (NPs) to obtain an improved protein/antigen delivery system. Blend NPs (PCL/chitosan NPs) showed improved protein adsorption efficacy (84%) in low shear stress and aqueous environment, suggesting that a synergistic effect between PCL hydrophobic nature and the positive charges of chitosan present at the particle surface was responsible for protein interaction. Additionally, thermal analysis suggested the blend NPs were more stable than the isolated polymers and cytotoxicity assays in a primary cell culture revealed chitosan inclusion in PCL NPs reduced the toxicity of the delivery system. A quantitative 6-month stability study showed that the inclusion of chitosan in PCL NPs did not induce a change in adsorbed ovalbumin (OVA) secondary structure characterized by the increase in the unordered conformation (random coil), as it was observed for OVA adsorbed to chitosan NPs. Additionally, the slight conformational changes occurred, are not expected to compromise ovalbumin secondary structure and activity, during a 6-month storage even at high temperatures (45°C). In simulated biological fluids, PCL/chitosan NPs showed an advantageous release profile for oral delivery. Overall, the combination of PCL and chitosan characteristics provide PCL/chitosan NPs valuable features particularly important to the development of vaccines for developing countries, where it is difficult to ensure cold chain transportation and non-parenteral formulations would be preferred.
Collapse
|
147
|
Otto DP, de Villiers MM. Poly(amidoamine) Dendrimers as a Pharmaceutical Excipient. Are We There yet? J Pharm Sci 2018; 107:75-83. [DOI: 10.1016/j.xphs.2017.10.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/02/2017] [Accepted: 10/06/2017] [Indexed: 12/20/2022]
|
148
|
Biodegradable Polymeric Nanocarrier-Based Immunotherapy in Hepatitis Vaccination. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:303-320. [DOI: 10.1007/978-981-13-0950-2_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
149
|
Prospects of Natural Polymeric Scaffolds in Peripheral Nerve Tissue-Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:501-525. [DOI: 10.1007/978-981-13-0947-2_27] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
150
|
Zhang Y, Yue Y, Chang M. Local anaesthetic pain relief therapy: In vitro and in vivo evaluation of a nanotechnological formulation co-loaded with ropivacaine and dexamethasone. Biomed Pharmacother 2017; 96:443-449. [PMID: 29031203 DOI: 10.1016/j.biopha.2017.09.124] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/24/2017] [Accepted: 09/24/2017] [Indexed: 12/22/2022] Open
Abstract
Combination therapy is frequently applied to anesthesia and analgesia for its benefits, which includes prolonged analgesia following peripheral nerve blockade, and reduced side effects. The aim of this study was to develop chitosan (CH) coated poly(ε-caprolactone) (PCL) nanoparticles to co-deliver ropivacaine (RPV) and dexamethasone (DEM) (RPV/DEM CH-PCL NPs) for the prolongation of anesthesia and pain relief. In the present study, RPV/DEM CH-PCL NPs were fabricated. The properties of CH-PCL NPs were evaluated for their particle sizes, zeta potential, drug loading capacity and in vitro drug release profile. In vitro skin permeation and in vivo therapeutic effect in an animal model were further investigated. The results showed that the NPs was around 190nm, with PDI of less than 0.20. The zeta potentials of NPs were about 36mV. In vitro drug release of both RPV and DEM from NPs complied with sustained behaviors. All of the drugs loaded NPs samples studied exhibited no obvious L929 cells cytotoxicity. In vitro skin penetration profiles showed the amount of RPV permeated through the skin from NPs was significantly higher than free RPV. RPV and DEM co-loaded NPs induced remarkably better anesthetic effect than non DEM loaded RPV CH-PCL NPs. The results suggested that adding a small dosage of DEM could improve the anesthesia efficacy of RVP to a large content. The resulting formulation could be applied as a promising anesthesia system for local anesthetics therapy.
Collapse
Affiliation(s)
- Yongxin Zhang
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Yaocun Yue
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Meng Chang
- Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China.
| |
Collapse
|