1
|
Chen Y, Xiong T, Peng Q, Du J, Sun W, Fan J, Peng X. Self-reporting photodynamic nanobody conjugate for precise and sustainable large-volume tumor treatment. Nat Commun 2024; 15:6935. [PMID: 39138197 PMCID: PMC11322375 DOI: 10.1038/s41467-024-51253-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 08/02/2024] [Indexed: 08/15/2024] Open
Abstract
Nanobodies (Nbs), the smallest antigen-binding fragments with high stability and affinity derived from the variable domain of naturally occurring heavy-chain-only antibodies in camelids, have been shown as an efficient way to improve the specificity to tumors for photodynamic therapy (PDT). Nonetheless, the rapid clearance of Nbs in vivo restricts the accumulation and retention of the photosensitizer at the tumor site causing insufficient therapeutic outcome, especially in large-volume tumors. Herein, we develop photodynamic conjugates, MNB-Pyra Nbs, through site-specific conjugation between 7D12 Nbs and type I photosensitizer MNB-Pyra (morpholine-modified nile blue structure connected to pyrazolinone) in a 1:2 ratio. The photosensitizers with long-term retention can be released at the tumor site by reactive oxygen species cleavage after illumination, accompanied with fluorescence recovery for self-reporting the occurrence of PDT. Ultimately, a single dose of MNB-Pyra Nbs demonstrate highly effective tumor suppression with high biosafety in the large-volume tumor models after three rounds of PDT. This nanobody conjugate provides a paradigm for the design of precise long-time retention photosensitizers and is expected to promote the development of PDT.
Collapse
Affiliation(s)
- Yingchao Chen
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| | - Tao Xiong
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| | - Qiang Peng
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| | - Jianjun Du
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China.
- Liaoning Binhai Laboratory, Dalian, 116023, China.
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Liaoning Binhai Laboratory, Dalian, 116023, China
| |
Collapse
|
2
|
Singh R, Madasswery S, Colman M, Kent PM. Denosumab and sclerotherapy for recurrent spinal aneurysmal bone cyst in a child. BMJ Case Rep 2024; 17:e257450. [PMID: 38589235 PMCID: PMC11015305 DOI: 10.1136/bcr-2023-257450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
Aneurysmal bone cyst (ABC) is a non-malignant, locally destructive, blood-filled lesion in the bone that tends to grow aggressively. A young girl presented with a rapid recurrence after aggressive surgery of a large symptomatic sacral-spinal ABC. After a multidisciplinary tumour board, she was successfully treated with sclerotherapy and monthly intravenous denosumab. The patient has maintained asymptomatic for over 36 months now and has returned to full activity and strength. She never required surgery and has had radiologic resolution of the lesions. Treatment of recurrent ABC requires a multidisciplinary team approach. We believe this to be the first report to use this combined therapy to provide an alternative to morbid surgery for children with ABCs.
Collapse
Affiliation(s)
- Raj Singh
- College of Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | | | - Matt Colman
- Rush University Rush Medical College, Chicago, Illinois, USA
| | - Paul McKeegan Kent
- Medical Director, FibroFighters Foundation LLC, Temecula, California, USA
| |
Collapse
|
3
|
Mahdipour E, Mequanint K. Films, Gels and Electrospun Fibers from Serum Albumin Globular Protein for Medical Device Coating, Biomolecule Delivery and Regenerative Engineering. Pharmaceutics 2022; 14:2306. [PMID: 36365125 PMCID: PMC9698923 DOI: 10.3390/pharmaceutics14112306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/08/2022] [Accepted: 10/10/2022] [Indexed: 09/18/2023] Open
Abstract
Albumin is a natural biomaterial that is abundantly available in blood and body fluids. It is clinically used as a plasma expander, thereby increasing the plasma thiol concentration due to its cysteine residues. Albumin is a regulator of intervascular oncotic pressure, serves as an anti-inflammatory modulator, and it has a buffering role due to its histidine imidazole residues. Because of its unique biological and physical properties, albumin has also emerged as a suitable biomaterial for coating implantable devices, for cell and drug delivery, and as a scaffold for tissue engineering and regenerative medicine. As a biomaterial, albumin can be used as surface-modifying film or processed either as cross-linked protein gels or as electrospun fibers. Herein we have discussed how albumin protein can be utilized in regenerative medicine as a hydrogel and as a fibrous mat for a diverse role in successfully delivering drugs, genes, and cells to targeted tissues and organs. The review of prior studies indicated that albumin is a tunable biomaterial from which different types of scaffolds with mechanical properties adjustable for various biomedical applications can be fabricated. Based on the progress made to date, we concluded that albumin-based device coatings, delivery of drugs, genes, and cells are promising strategies in regenerative and personalized medicine.
Collapse
Affiliation(s)
- Elahe Mahdipour
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
- Department of Medical Biotechnology & Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, University Ave., Mashhad 9177948564, Iran
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| |
Collapse
|
4
|
Huang W, Deng Y, Ye L, Xie Q, Jiang Y. Enhancing hemocompatibility and the performance of Au@silica nanoparticles by coating with cRGD functionalized zein. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 125:112064. [PMID: 33965097 DOI: 10.1016/j.msec.2021.112064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/05/2021] [Accepted: 03/16/2021] [Indexed: 12/24/2022]
Abstract
Poor safety and effectiveness is an outstanding challenge in the preparation of drug delivery systems (DDS) for cancer treatment. The pursuit of the high curative effect will inevitably increase the risk of adverse side effects. Herein, a bio-safe DDS was constructed by combining the advantages of functional zein and Au doped mesoporous silica nanoparticles (Au@SiO2) to achieve chemo-photothermal therapy. The cRGD functionalized zein (cRGD-Zein) was coated on the surface of Au@SiO2 which effectively avoided premature leakage of paclitaxel and realized sustained drug release. Meanwhile, the high hemolysis rate (107%) of Au@SiO2 had been significantly reduced to 4%. The anti-hemolysis mechanism of functionalized zein was explored to give a deeper understanding of the interaction between nanoparticles and RBCs. The results showed that the functional zein would change the protein conformation during the interaction with Au@SiO2 to protect the RBCs from the damage of Au@SiO2. And the release rate of hemoglobin was limited by the size of RBCs membrane cracks with approximately 40 nm in width and 470 nm in length. The cell cytotoxicity and uptake assays showed that the prepared DDS exhibited low tumour cell viability (35%) and enhanced uptake performance (99.3%). This work suggested that the prepared nanoparticles could serve as a promising carrier to achieve safe and efficacious tumour therapy.
Collapse
Affiliation(s)
- Wenquan Huang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuehua Deng
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Liping Ye
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qiuling Xie
- College of Life Science and Technology, Jinan University, Guangzhou 510632, China; National Engineering Research Centre of Genetic Medicine, Guangzhou 510632, China.
| | - Yanbin Jiang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
5
|
Kim J, Jeon S, Kang SJ, Kim KR, Thai HBD, Lee S, Kim S, Lee YS, Ahn DR. Lung-targeted delivery of TGF-β antisense oligonucleotides to treat pulmonary fibrosis. J Control Release 2020; 322:108-121. [PMID: 32179111 DOI: 10.1016/j.jconrel.2020.03.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/09/2020] [Accepted: 03/12/2020] [Indexed: 01/19/2023]
Abstract
Pulmonary fibrosis is a serious respiratory disease, with limited therapeutic options. Since TGF-β is a critical factor in the fibrotic process, downregulation of this cytokine has been considered a potential approach for disease treatment. Herein, we designed a new lung-targeted delivery technology based on the complexation of polymeric antisense oligonucleotides (pASO) and dimeric human β-defensin 23 (DhBD23). Antisense oligonucleotides targeting TGF-β mRNA were polymerized by rolling circle amplification and complexed with DhBD23. After complexation with DhBD23, pASO showed improved serum stability and enhanced uptake by fibroblasts in vitro and lung-specific accumulation upon intravenous injection in vivo. The pASO/DhBD23 complex delivered into the lung downregulated target mRNA, and subsequently alleviated lung fibrosis in mice, as demonstrated by western blotting, quantitative reverse-transcriptase PCR (qRT-PCR), immunohistochemistry, and immunofluorescence imaging. Moreover, as the complex was prepared only with highly biocompatible materials such as DNA and human-derived peptides, no systemic toxicity was observed in major organs. Therefore, the pASO/DhBD23 complex is a promising gene therapy platform with lung-targeting ability to treat various pulmonary diseases, including pulmonary fibrosis, with low side effects.
Collapse
Affiliation(s)
- Junghyun Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Seulgi Jeon
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Ewhayeodae-gil 52, Seodaemun-gu, Seoul, 03760, Republic of Korea
| | - Seong Jae Kang
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Kyoung-Ran Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Hien Bao Dieu Thai
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Seokyung Lee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Sehoon Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Yun-Sil Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Ewhayeodae-gil 52, Seodaemun-gu, Seoul, 03760, Republic of Korea.
| | - Dae-Ro Ahn
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea; Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea.
| |
Collapse
|
6
|
Submicron-Sized Nanocomposite Magnetic-Sensitive Carriers: Controllable Organ Distribution and Biological Effects. Polymers (Basel) 2019; 11:polym11061082. [PMID: 31242626 PMCID: PMC6630964 DOI: 10.3390/polym11061082] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/17/2019] [Accepted: 06/21/2019] [Indexed: 12/16/2022] Open
Abstract
Although new drug delivery systems have been intensely developed in the past decade, no significant increase in the efficiency of drug delivery by nanostructure carriers has been achieved. The reasons are the lack of information about acute toxicity, the influence of the submicron size of the carrier and difficulties with the study of biodistribution in vivo. Here we propose, for the first time in vivo, new nanocomposite submicron carriers made of bovine serum albumin (BSA) and tannic acid (TA) and containing magnetite nanoparticles with sufficient content for navigation in a magnetic field gradient on mice. We examined the efficacy of these submicron carriers as a delivery vehicle in combination with magnetite nanoparticles which were systemically administered intravenously. In addition, the systemic toxicity of this carrier for intravenous administration was explicitly studied. The results showed that (BSA/TA) carriers in the given doses were hemocompatible and didn’t cause any adverse effect on the respiratory system, kidney or liver functions. A combination of gradient-magnetic-field controllable biodistribution of submicron carriers with fluorescence tomography/MRI imaging in vivo provides a new opportunity to improve drug delivery efficiency.
Collapse
|
7
|
Farooq MA, Aquib M, Ghayas S, Bushra R, Haleem Khan D, Parveen A, Wang B. Whey protein: A functional and promising material for drug delivery systems recent developments and future prospects. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4676] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Muhammad Asim Farooq
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing Jiangsu 211198 PR China
| | - Md Aquib
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing Jiangsu 211198 PR China
| | - Sana Ghayas
- Dow College of PharmacyDow University of Health Sciences Karachi Pakistan
| | - Rabia Bushra
- Dow College of PharmacyDow University of Health Sciences Karachi Pakistan
| | - Daulat Haleem Khan
- Department of PharmacyLahore College of Pharmaceutical Sciences Lahore Pakistan
| | - Amna Parveen
- College of PharmacyGachon University Incheon 21936 Korea
| | - Bo Wang
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing Jiangsu 211198 PR China
| |
Collapse
|
8
|
Pan Z, He X, Song N, Fang D, Li Z, Li J, Luo F, Li J, Tan H, Fu Q. Albumin-Modified Cationic Nanocarriers To Potentially Create a New Platform for Drug Delivery Systems. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16421-16429. [PMID: 30995005 DOI: 10.1021/acsami.9b05599] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cationic nanocarriers have emerged as promising nanoparticle systems for the effective delivery of nucleic acid and anticancer drugs to cancer cells. A positive charge is desirable for promoting cell internalization, whereas it also causes some adverse effects, such as toxicity and rapid clearance by mononuclear phagocytic systems. Herein, a new strategy of modifying cationic polymer micelles with albumin forming a protein corona to improve the surface physiochemical properties is reported. The corona with a monolayer or a multilayer was constructed depending on the albumin concentration, and the proteins would denature in different degrees due to the interaction with the surface of cationic micelles. It is demonstrated that multilayer albumin corona is beneficial to prevent macrophage uptake, increase accumulation in tumor tissues, and reduce toxic side effects to normal tissues. Our work provides a promising method to modify the cationic nanoplatform by optimizing the biosecurity and bioavailability for potential application in drug delivery.
Collapse
Affiliation(s)
- Zhicheng Pan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
- Department of Chemical Engineering , McMaster University , 1280 Main Street West , Hamilton L8S 4L8 , Ontario , Canada
| | - Xueling He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
- Laboratory Animal Center of Sichuan University , Chengdu 610041 , China
| | - Nijia Song
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Danxuan Fang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Zhen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Feng Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| |
Collapse
|
9
|
Sokolov AV, Kostin NN, Ovchinnikova LA, Lomakin YA, Kudriaeva AA. Targeted Drug Delivery in Lipid-like Nanocages and Extracellular Vesicles. Acta Naturae 2019; 11:28-41. [PMID: 31413877 PMCID: PMC6643341 DOI: 10.32607/20758251-2019-11-2-28-41] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 12/12/2022] Open
Abstract
The possibility of targeted drug delivery to a specific tissue, organ, or cell has opened new promising avenues in treatment development. The technology of targeted delivery aims to create multifunctional carriers that are capable of long circulation in the patient's organism and possess low toxicity at the same time. The surface of modern synthetic carriers has high structural similarity to the cell membrane, which, when combined with additional modifications, also promotes the transfer of biological properties in order to penetrate physiological barriers effectively. Along with artificial nanocages, further efforts have recently been devoted to research into extracellular vesicles that could serve as natural drug delivery vehicles. This review provides a detailed description of targeted delivery systems that employ lipid and lipid-like nanocages, as well as extracellular vesicles with a high level of biocompatibility, highlighting genetically encoded drug delivery vehicles.
Collapse
Affiliation(s)
- A. V. Sokolov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str. 16 /10, Moscow, 117997, Russia
| | - N. N. Kostin
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str. 16 /10, Moscow, 117997, Russia
| | - L. A. Ovchinnikova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str. 16 /10, Moscow, 117997, Russia
| | - Y. A. Lomakin
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str. 16 /10, Moscow, 117997, Russia
| | - A. A. Kudriaeva
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str. 16 /10, Moscow, 117997, Russia
| |
Collapse
|
10
|
Liu X, Han SB, Si G, Yang SM, Wang CM, Jiang L, Wei F, Wu FL, Liu XG, Liu ZJ. Percutaneous albumin/doxycycline injection versus open surgery for aneurysmal bone cysts in the mobile spine. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2018; 28:1529-1536. [DOI: 10.1007/s00586-018-5836-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/18/2018] [Indexed: 11/29/2022]
|
11
|
Yewale C, Baradia D, Patil S, Bhatt P, Amrutiya J, Gandhi R, Kore G, Misra A. Docetaxel loaded immunonanoparticles delivery in EGFR overexpressed breast carcinoma cells. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.03.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
12
|
Zhou M, Hu Q, Wang T, Xue J, Luo Y. Characterization of high density lipoprotein from egg yolk and its ability to form nanocomplexes with chitosan as natural delivery vehicles. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.09.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
13
|
Li Q, Zhan S, Liu Q, Su H, Dai X, Wang H, Beng H, Tan W. Preparation of a Sustained-Release Nebulized Aerosol of R-terbutaline Hydrochloride Liposome and Evaluation of Its Anti-asthmatic Effects via Pulmonary Delivery in Guinea Pigs. AAPS PharmSciTech 2018; 19:232-241. [PMID: 28681333 DOI: 10.1208/s12249-017-0816-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/23/2017] [Indexed: 11/30/2022] Open
Abstract
An aerosolized liposome formulation for the pulmonary delivery of an anti-asthmatic medication was developed. Asthma treatment usually requires frequent administration of medication for a sustained bronchodilator response. Liposomes are known for their sustained drug release capability and thus would be a suitable delivery system for prolonging the therapeutic effect of anti-asthmatic medication. Liposomes prepared by thin film hydration were loaded with a model drug, R-terbutaline hydrochloride(R-TBH), using an ammonium sulfate-induced transmembrane electrochemical gradient. This technique provided an encapsulation efficiency of up to 71.35% and yielded R-TBH liposomes with a particle size of approximately 145 ± 20 nm. According to stability studies, these R-TBH liposomes should be stored at 4°C before usage. Compared to R-TBH solution, which showed 90.84% release within 8 h, liposomal R-TBH had a cumulative release of 73.53% at 37°C over 192 h. A next generation impactor (NGI) was used to analyze the particle size distribution in the lungs of R-TBH liposome aerosol in vitro at 5°C. The therapeutic efficacy of the nebulized aerosol of the R-TBH liposomes was assessed via pulmonary delivery in guinea pigs. The results showed that, compared to the R-TBH solution group, the R-TBH liposome group had a prolonged anti-asthma effect.
Collapse
|
14
|
Ibrahim SS, Osman R, Mortada ND, Geneidy AS, Awad GAS. Passive targeting and lung tolerability of enoxaparin microspheres for a sustained antithrombotic activity in rats. Drug Deliv 2017; 24:243-251. [PMID: 28156170 PMCID: PMC8241188 DOI: 10.1080/10717544.2016.1245368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/03/2016] [Indexed: 12/20/2022] Open
Abstract
Pulmonary bed can retain microparticles (MP) larger than their capillaries' diameter, hence we offer a promising way for lung passive targeting following intravenous (IV) administration. In this study, enoxaparin (Enox)-albumin microspheres (Enox-Alb MS) were, optimally, developed as lung targeted sustained release MP for IV use. Lung tolerability and targeting efficiency of Enox-Alb MS were tested, and the pharmacokinetic profile following IV administration to albino rats was constructed. In vivo studies confirmed high lung targeting efficiency of Enox-Alb MS with lack of potential tissue toxicity. The anticoagulant activity of the selected Alb MS was significantly sustained for up to 38 h compared to 5 h for the market product. Alb MS are promising delivery carriers for controlled and targeted delivery of Enox to the lungs for prophylaxis and treatment of pulmonary embolism.
Collapse
Affiliation(s)
- Shaimaa S. Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Nahed D. Mortada
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed-Shawky Geneidy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Gehanne A. S. Awad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| |
Collapse
|
15
|
Wang J, Yin Z, Xue X, Kundu SC, Mo X, Lu S. Natural Non-Mulberry Silk Nanoparticles for Potential-Controlled Drug Release. Int J Mol Sci 2016; 17:ijms17122012. [PMID: 27916946 PMCID: PMC5187812 DOI: 10.3390/ijms17122012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/25/2016] [Accepted: 11/26/2016] [Indexed: 01/31/2023] Open
Abstract
Natural silk protein nanoparticles are a promising biomaterial for drug delivery due to their pleiotropic properties, including biocompatibility, high bioavailability, and biodegradability. Chinese oak tasar Antheraea pernyi silk fibroin (ApF) nanoparticles are easily obtained using cations as reagents under mild conditions. The mild conditions are potentially advantageous for the encapsulation of sensitive drugs and therapeutic molecules. In the present study, silk fibroin protein nanoparticles are loaded with differently-charged small-molecule drugs, such as doxorubicin hydrochloride, ibuprofen, and ibuprofen-Na, by simple absorption based on electrostatic interactions. The structure, morphology and biocompatibility of the silk nanoparticles in vitro are investigated. In vitro release of the drugs from the nanoparticles depends on charge-charge interactions between the drugs and the nanoparticles. The release behavior of the compounds from the nanoparticles demonstrates that positively-charged molecules are released in a more prolonged or sustained manner. Cell viability studies with L929 demonstrated that the ApF nanoparticles significantly promoted cell growth. The results suggest that Chinese oak tasar Antheraea pernyi silk fibroin nanoparticles can be used as an alternative matrix for drug carrying and controlled release in diverse biomedical applications.
Collapse
Affiliation(s)
- Juan Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
- College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China.
| | - Zhuping Yin
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Xiang Xue
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Subhas C Kundu
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India.
| | - Xiumei Mo
- College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China.
| | - Shenzhou Lu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| |
Collapse
|
16
|
Yingchoncharoen P, Kalinowski DS, Richardson DR. Lipid-Based Drug Delivery Systems in Cancer Therapy: What Is Available and What Is Yet to Come. Pharmacol Rev 2016; 68:701-87. [PMID: 27363439 PMCID: PMC4931871 DOI: 10.1124/pr.115.012070] [Citation(s) in RCA: 429] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cancer is a leading cause of death in many countries around the world. However, the efficacy of current standard treatments for a variety of cancers is suboptimal. First, most cancer treatments lack specificity, meaning that these treatments affect both cancer cells and their normal counterparts. Second, many anticancer agents are highly toxic, and thus, limit their use in treatment. Third, a number of cytotoxic chemotherapeutics are highly hydrophobic, which limits their utility in cancer therapy. Finally, many chemotherapeutic agents exhibit short half-lives that curtail their efficacy. As a result of these deficiencies, many current treatments lead to side effects, noncompliance, and patient inconvenience due to difficulties in administration. However, the application of nanotechnology has led to the development of effective nanosized drug delivery systems known commonly as nanoparticles. Among these delivery systems, lipid-based nanoparticles, particularly liposomes, have shown to be quite effective at exhibiting the ability to: 1) improve the selectivity of cancer chemotherapeutic agents; 2) lower the cytotoxicity of anticancer drugs to normal tissues, and thus, reduce their toxic side effects; 3) increase the solubility of hydrophobic drugs; and 4) offer a prolonged and controlled release of agents. This review will discuss the current state of lipid-based nanoparticle research, including the development of liposomes for cancer therapy, different strategies for tumor targeting, liposomal formulation of various anticancer drugs that are commercially available, recent progress in liposome technology for the treatment of cancer, and the next generation of lipid-based nanoparticles.
Collapse
Affiliation(s)
- Phatsapong Yingchoncharoen
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
| | - Danuta S Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
17
|
Yang F, Kang J, Yang F, Zhao Z, Kong T, Zeng Z. Preparation and evaluation of enrofloxacin microspheres and tissue distribution in rats. J Vet Sci 2015; 16:157-64. [PMID: 25643802 PMCID: PMC4483498 DOI: 10.4142/jvs.2015.16.2.157] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 12/30/2014] [Indexed: 11/22/2022] Open
Abstract
New enrofloxacin microspheres were formulated, and their physical properties, lung-targeting ability, and tissue distribution in rats were examined. The microspheres had a regular and round shape. The mean diameter was 10.06 µm, and the diameter of 89.93% of all microspheres ranged from 7.0 µm to 30.0 µm. Tissue distribution of the microspheres was evaluated along with a conventional enrofloxacin preparation after a single intravenous injection (7.5 mg of enrofloxacin/kg bw). The results showed that the elimination half-life (t1/2β) of enrofloxacin from lung was prolonged from 7.94 h for the conventional enrofloxacin to 13.28 h for the microspheres. Area under the lung concentration versus time curve from 0 h to ∞ (AUC0-∞) was increased from 11.66 h·µg/g to 508.00 h·µg/g. The peak concentration (Cmax) in lung was increased from 5.95 µg/g to 93.36 µg/g. Three lung-targeting parameters were further assessed and showed that the microspheres had remarkable lung-targeting capabilities.
Collapse
Affiliation(s)
- Fan Yang
- Laboratory of Veterinary Pharmacology, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | | | | | | | | | | |
Collapse
|
18
|
Patel AR, Velikov KP. Zein as a source of functional colloidal nano- and microstructures. Curr Opin Colloid Interface Sci 2014. [DOI: 10.1016/j.cocis.2014.08.001] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
19
|
Sitta DLA, Guilherme MR, Garcia FP, Cellet TSP, Nakamura CV, Muniz EC, Rubira AF. Covalent Albumin Microparticles as an Adjuvant for Production of Mucosal Vaccines against Hepatitis B. Biomacromolecules 2013; 14:3231-7. [DOI: 10.1021/bm400859z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Danielly L. A. Sitta
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Marcos R. Guilherme
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Francielle P. Garcia
- Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
| | - Thelma S. P. Cellet
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Celso V. Nakamura
- Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
- Programa de pós-graduação
em Ciências Farmacêuticas, Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
| | - Edvani C. Muniz
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Adley F. Rubira
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| |
Collapse
|
20
|
|
21
|
Wang L, Wang YS, Chen RY, Feng CL, Wang H, Zhu XW, Yu JN, Xu XM. Plga Microspheres as a Delivery Vehicle for Sustained Release of Tetracycline: Biodistribution in Mice After Subcutaneous Administration. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50083-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
22
|
Jătariu (Cadinoiu) AN, Holban MN, Peptu CA, Sava A, Costuleanu M, Popa M. Double crosslinked interpenetrated network in nanoparticle form for drug targeting—Preparation, characterization and biodistribution studies. Int J Pharm 2012; 436:66-74. [DOI: 10.1016/j.ijpharm.2012.06.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 05/31/2012] [Accepted: 06/01/2012] [Indexed: 12/29/2022]
|
23
|
Nair AB, Kaushik A, Attimarad M, Al-Dhubiab BE. Enhanced oral bioavailability of calcium using bovine serum albumin microspheres. Drug Deliv 2012; 19:277-85. [DOI: 10.3109/10717544.2012.704094] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
|
24
|
Piao L, Li H, Teng L, Yung BC, Sugimoto Y, Brueggemeier RW, Lee RJ. Human serum albumin-coated lipid nanoparticles for delivery of siRNA to breast cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2012; 9:122-9. [PMID: 22542825 DOI: 10.1016/j.nano.2012.03.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 03/23/2012] [Accepted: 04/05/2012] [Indexed: 02/07/2023]
Abstract
UNLABELLED Human serum albumin (HSA)-coated lipid nanoparticles (HSA-LNPs) loaded with phrGFP-targeted siRNA (HSA-LNPs-siRNA) were prepared and evaluated for gene downregulation effect in phrGFP-transfected breast cancer cells and the corresponding xenograft tumor model. HSA-LNPs-siRNA were successfully prepared with a particle size of 79.5±5.5 nm. In phrGFP-transfected MCF-7 cells, HSA-LNPs-siRNA significantly decreased cell fluorescence even in the presence of fetal bovine serum (FBS). Moreover, cell fluorescence and phrGFP mRNA expression were significantly downregulated by HSA-LNPs-siRNA in phrGFP-transfected MCF-7, MDA-MB-231, and SK-BR-3 cells in comparison with control or HSA-LNPs-siRNA (scrambled). In phrGFP-transfected MCF-7 xenograft tumor model, tumor fluorescence was significantly decreased after three IV administrations of HSA-LNPs-siRNA at a dose of 3 mg/kg in comparison with siRNA alone. HSA-LNPs-siRNA demonstrated a superior pharmacokinetic profile in comparison with siRNA at a dose of 1mg/kg. These results show that the novel nonviral carrier, HSA-LNPs, may be used for the delivery of siRNA to breast cancer cells. FROM THE CLINICAL EDITOR Targeted delivery of siRNA to cancer cells may be a viable anti-cancer strategy with low toxicity. In this study the novel nonviral carrier, human serum albumin-coated lipid nanoparticles (HSA-LNP) were demonstrated as an efficient delivery agent of siRNA to breast cancer cells.
Collapse
Affiliation(s)
- Longzhu Piao
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | | | | | | | | | | | | |
Collapse
|
25
|
Elzoghby AO, Abo El-Fotoh WS, Elgindy NA. Casein-based formulations as promising controlled release drug delivery systems. J Control Release 2011; 153:206-16. [DOI: 10.1016/j.jconrel.2011.02.010] [Citation(s) in RCA: 334] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Accepted: 02/09/2011] [Indexed: 01/06/2023]
|
26
|
Elzoghby AO, Samy WM, Elgindy NA. Albumin-based nanoparticles as potential controlled release drug delivery systems. J Control Release 2011; 157:168-82. [PMID: 21839127 DOI: 10.1016/j.jconrel.2011.07.031] [Citation(s) in RCA: 939] [Impact Index Per Article: 72.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
Abstract
Albumin, a versatile protein carrier for drug delivery, has been shown to be nontoxic, non-immunogenic, biocompatible and biodegradable. Therefore, it is ideal material to fabricate nanoparticles for drug delivery. Albumin nanoparticles have gained considerable attention owing to their high binding capacity of various drugs and being well tolerated without any serious side-effects. The current review embodies an in-depth discussion of albumin nanoparticles with respect to types, formulation aspects, major outcomes of in vitro and in vivo investigations as well as site-specific drug targeting using various ligands modifying the surface of albumin nanoparticles with special insights to the field of oncology. Specialized nanotechnological techniques like desolvation, emulsification, thermal gelation and recently nano-spray drying, nab-technology and self-assembly that have been investigated for fabrication of albumin nanoparticles, are also discussed. Nanocomplexes of albumin with other components in the area of drug delivery are also included in this review.
Collapse
Affiliation(s)
- Ahmed O Elzoghby
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, El-Khartoum Square, Azarita, Alexandria 21521, Egypt.
| | | | | |
Collapse
|
27
|
Sahin S, Karabey Y. Investigation of distribution and elimination of terbutaline sulfate in the perfused rat liver preparation. Eur J Drug Metab Pharmacokinet 2011; 35:9-14. [PMID: 21495261 DOI: 10.1007/s13318-010-0002-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Hepatic distribution and elimination of terbutaline sulfate (TBS) was investigated in the in situ isolated perfused rat liver preparation. Perfusion experiments were conducted using Krebs bicarbonate buffer delivered via the portal vein in a single-pass mode at a total flow rate of 15 mL min(-1). TBS was administered as a bolus (2 mg mL(-1)) in the absence and presence of erythrocytes (50% hematocrit) or albumin (1%). Immediately after a bolus administration, the outflow perfusate was collected and then concentration of TBS was determined by a validated HPLC method. Regardless of the condition, the extraction of TBS (0.35-0.51) across the liver during single pass was intermediate. Although protein binding of TBS was very low (2.5%), it was taken up slowly and continuously by erythrocytes. A blood to plasma concentration ratio of 2.8 obtained at the end of incubation period clearly indicates that TBS has an affinity to erythrocytes. However, under the conditions used in this study, hepatic distribution and elimination of TBS were not influenced by the presence of erythrocytes or albumin.
Collapse
Affiliation(s)
- Selma Sahin
- Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey.
| | | |
Collapse
|
28
|
Faiyazuddin M, Rauf A, Ahmad N, Ahmad S, Iqbal Z, Talegaonkar S, Bhatnagar A, Khar RK, Ahmad FJ. A validated HPTLC method for determination of terbutaline sulfate in biological samples: Application to pharmacokinetic study. Saudi Pharm J 2011; 19:185-91. [PMID: 23960758 DOI: 10.1016/j.jsps.2011.03.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Accepted: 03/11/2011] [Indexed: 11/16/2022] Open
Abstract
Terbutaline sulfate (TBS) was assayed in biological samples by validated HPTLC method. Densitometric analysis of TBS was carried out at 366 nm on precoated TLC aluminum plates with silica gel 60F254 as a stationary phase and chloroform-methanol (9.0:1.0, v/v) as a mobile phase. TBS was well resolved at RF 0.34 ± 0.02. In all matrices, the calibration curve appeared linear (r (2) ⩾ 0.9943) in the tested range of 100-1000 ng spot(-1) with a limit of quantification of 18.35 ng spot(-1). Drug recovery from biological fluids averaged ⩾95.92%. In both matrices, rapid degradation of drug favored and the T 0.5 of drug ranged from 9.92 to 12.41 h at 4 °C and from 6.31 to 9.13 h at 20 °C. Frozen at -20 °C, this drug was stable for at least 2 months (without losses >10%). The maximum plasma concentration (Cpmax) was found to be 5875.03 ± 114 ng mL(-1), which is significantly higher than the maximum saliva concentration (Csmax, 1501.69 ± 96 ng mL(-1)). Therefore, the validated method could be used to carry out pharmacokinetic studies of the TBS from novel drug delivery systems.
Collapse
Affiliation(s)
- Md Faiyazuddin
- Formulation Research Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, Hamdard Nagar, New Delhi 110 062, India ; Faculty of Pharmacy, Integral University, Dasauli, Kursi Road, Lucknow 222 026, Uttar Pradesh, India
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Lin T, Lu C, Zhu L, Lu T. The biodegradation of zein in vitro and in vivo and its application in implants. AAPS PharmSciTech 2011; 12:172-6. [PMID: 21184205 DOI: 10.1208/s12249-010-9565-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 11/30/2010] [Indexed: 11/30/2022] Open
Abstract
A unique polymer-based sustained-release implant drug delivery system was prepared by using biocompatible and biodegradable Zein as the skeleton material. After preparing Zein colloids, the Zein-loaded implant rods were formulated by injection molding followed by evaporating the solvent, and being coated with poly(lactic-co-glycolic) acid (PLGA) solution. Drug release kinetics was examined by using Fluorouracil (5-FU) as model drug. Nearly zero-order release was achieved for the model drugs for a period of 0-25 days when the implants were incubated in distilled water at 37 °C. And then the degradation kinetics of the rods in vivo and in vitro were evaluated, which indicated that Zein could be absorbed by body and has good degradation property. The effects of different ratios of Zein/5-FU and the rods' diameter on drug release were studied, respectively. The plasma concentration of 5-FU in the implants were determined by HPLC after implanting a single dose of the implants in rats. All data were subsequently processed by using the computer program 3P97, and the values were showed as follows: the area under the plasma concentration-time curve (AUC) value was 321.88 (μg/ml) × day, and the mean residence time (MRT) value was 23.05 days. The sustained-release implants of Zein/5-FU were successfully formulated. The uniqueness of the article is that Zein has been used as a skeleton material in implant delivery system for the first time and zero-order release kinetics has been obtained successfully.
Collapse
|
30
|
Lammel A, Schwab M, Hofer M, Winter G, Scheibel T. Recombinant spider silk particles as drug delivery vehicles. Biomaterials 2011; 32:2233-40. [DOI: 10.1016/j.biomaterials.2010.11.060] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 11/26/2010] [Indexed: 10/18/2022]
|
31
|
Wang X, Ren L, Tu Q, Wang J, Zhang Y, Li M, Liu R, Wang J. Magnetic protein microbead-aided indirect fluoroimmunoassay for the determination of canine virus specific antibodies. Biosens Bioelectron 2011; 26:3353-60. [DOI: 10.1016/j.bios.2011.01.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 01/05/2011] [Accepted: 01/13/2011] [Indexed: 11/17/2022]
|
32
|
Mathew ST, Devi SG, Prasanth VV, Vinod B. Formulation and in vitro-in vivo evaluation of ketoprofen-loaded albumin microspheres for intramuscular administration. J Microencapsul 2011; 26:456-69. [PMID: 19606940 DOI: 10.1080/02652040802420367] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The objective of this work was to prepare and evaluate ketoprofen-loaded albumin microspheres for intramuscular administration. Microspheres were prepared by emulsion cross-linking method using a 2(3) factorial design and the effect of different factors on entrapment efficiency was determined. Microspheres were evaluated for entrapment efficiency, percentage yield, particle size and release behaviour. Selected formulations were then tested by differential scanning calorimetry, X-ray diffraction and scanning electron microscopy. Further they were analysed for residual solvents, syringeability and stability. Microspheres were then sterilized and bioavailability studies were carried out in New Zealand white rabbits. The physical characteristics of microspheres showed that they were suitable for IM administration. The sterilization technique adopted was adequate to maintain sterility. In vivo studies showed increase in C(max), AUC, t(1/2) and MRT (p < 0.05) administered in the form of microspheres. MRT of ketoprofen was almost 3.2-times in the form of microspheres. From these results it was concluded that the developed albumin microspheres of ketoprofen is a potential delivery system for once-a-day intramuscular administration.
Collapse
Affiliation(s)
- Sam T Mathew
- Department of Pharmaceutics, Al-Ameen College of Pharmacy, Bangalore-27, India.
| | | | | | | |
Collapse
|
33
|
Kurmi BD, Kayat J, Gajbhiye V, Tekade RK, Jain NK. Micro- and nanocarrier-mediated lung targeting. Expert Opin Drug Deliv 2010; 7:781-94. [PMID: 20560777 DOI: 10.1517/17425247.2010.492212] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD Drug delivery to lungs appears to be an attractive proposition on account of the large surface area of the alveolar region; it provides tremendous opportunities to improve drug therapies both systemically and locally using new drug delivery systems. Administration of drugs directly to the lungs is the most appropriate route in the treatment of asthma and other pulmonary diseases such as tuberculosis, chronic obstructive pulmonary disease and lung cancer. AREAS COVERED IN THIS REVIEW This review focuses on the utilization of nano- and microcarriers such as microspheres, nanoparticles, liposomes, niosomes and dendrimers for targeted delivery of bioactive molecules to lungs. WHAT THE READER WILL GAIN This review sheds light on the current status of nano- and microcarrier-mediated lung targeting of bioactive compounds. TAKE HOME MESSAGE The literature review shows that carriers could supplement sustained drug delivery to the lungs, extended duration of action, reduced therapeutic dose, improved patient compliance, and reduced adverse effects of highly toxic drugs. There is still a need to identify more specific receptors that are present exclusively in the lungs. The identification of such receptors may also facilitate drug targeting to further specific parts of the lungs, such as bronchioles and alveoli.
Collapse
Affiliation(s)
- Balak D Kurmi
- Dr Hari Singh Gour University, Department of Pharmaceutical Sciences, Pharmaceutics Research Laboratory, Sagar 470 003, India
| | | | | | | | | |
Collapse
|
34
|
Cirillo G, Iemma F, Spizzirri UG, Puoci F, Curcio M, Parisi OI, Picci N. Synthesis of stimuli-responsive microgels for in vitro release of diclofenac diethyl ammonium. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2010; 22:823-44. [PMID: 20566061 DOI: 10.1163/092050610x496279] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thermal and dual stimuli-responsive microspheres (pH and temperature) were prepared by free radical polymerization of methacrylate bovine serum albumin (BSA-MA) as cross-linker and sodium methacrylate (NaMA) and/or N-isopropylacrylamide (NIPAAm), as hydrophilic/pH-sensitive and thermo-responsive monomers, respectively. Microgels were characterized by infrared spectroscopy, morphological analysis, particle size distribution and determination of swelling properties. The network density and the shape of the microgels were found to depend on the concentration of the reactive species in the polymerization feed. Thermal analyses were performed to determine lower critical solution temperature values, which become close to the body temperature by increasing the content of the hydrophilic moieties in the network. In order to test the preformed materials as drug carriers, in vitro release studies of Diclofenac diethyl ammonium salt were performed. For all the co-polymers, a predominant drug release in the collapsed state was observed, while below the microgel transition temperature, a drug release through the swollen network occurs. The data recorded during the release tests demonstrated that the pH of the surrounding environment influences the drug release more than the temperature of the imbibing medium.
Collapse
Affiliation(s)
- Giuseppe Cirillo
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, Edificio Polifunzionale, Rende (CS) 87036, Italia
| | | | | | | | | | | | | |
Collapse
|
35
|
Lammel A, Hu X, Park SH, Kaplan DL, Scheibel T. Controlling silk fibroin particle features for drug delivery. Biomaterials 2010; 31:4583-91. [PMID: 20219241 PMCID: PMC2846964 DOI: 10.1016/j.biomaterials.2010.02.024] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2009] [Accepted: 02/10/2010] [Indexed: 11/15/2022]
Abstract
Silk proteins are a promising material for drug delivery due to their aqueous processability, biocompatibility, and biodegradability. A simple aqueous preparation method for silk fibroin particles with controllable size, secondary structure and zeta potential is reported. The particles were produced by salting out a silk fibroin solution with potassium phosphate. The effect of ionic strength and pH of potassium phosphate solution on the yield and morphology of the particles was determined. Secondary structure and zeta potential of the silk particles could be controlled by pH. Particles produced by salting out with 1.25 m potassium phosphate pH 6 showed a dominating silk II (crystalline) structure whereas particles produced at pH 9 were mainly composed of silk I (less crystalline). The results show that silk I-rich particles possess chemical and physical stability and secondary structure which remained unchanged during post treatments even upon exposure to 100% ethanol or methanol. A model is presented to explain the process of particle formation based on intra- and intermolecular interactions of the silk domains, influenced by pH and kosmotropic salts. The reported silk fibroin particles can be loaded with small molecule model drugs, such as alcian blue, rhodamine B, and crystal violet, by simple absorption based on electrostatic interactions. In vitro release of these compounds from the silk particles depends on charge-charge interactions between the compounds and the silk. With crystal violet we demonstrated that the release kinetics are dependent on the secondary structure of the particles.
Collapse
Affiliation(s)
- Andreas Lammel
- Lehrstuhl Biotechnologie, Lichtenbergstraße 4, Technische Universität München, D-85747 Garching, Germany
| | - Xiao Hu
- Departments of Biomedical Engineering, Chemical and Biological Engineering, Bioengineering and Biotechnology Center, Tufts University, Medford 02155, MA, USA
| | - Sang-Hyug Park
- Departments of Biomedical Engineering, Chemical and Biological Engineering, Bioengineering and Biotechnology Center, Tufts University, Medford 02155, MA, USA
| | - David L. Kaplan
- Departments of Biomedical Engineering, Chemical and Biological Engineering, Bioengineering and Biotechnology Center, Tufts University, Medford 02155, MA, USA
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Universitätsstraße 30, Universität Bayreuth, D-95440 Bayreuth, Germany
| |
Collapse
|
36
|
Kutscher HL, Chao P, Deshmukh M, Singh Y, Hu P, Joseph LB, Reimer DC, Stein S, Laskin DL, Sinko PJ. Threshold size for optimal passive pulmonary targeting and retention of rigid microparticles in rats. J Control Release 2010; 143:31-7. [PMID: 20043961 PMCID: PMC2840186 DOI: 10.1016/j.jconrel.2009.12.019] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Accepted: 12/19/2009] [Indexed: 10/20/2022]
Abstract
The relationship between microparticle (MP) size and lung targeting efficiency, intra-lung distribution and retention time was systematically studied after intravenous administration of rigid fluorescent polystyrene MPs of various sizes (2, 3, 6 and 10 microm) to Sprague Dawley rats. Total fluorescence was assessed and it was found that 2 microm and 3 microm MPs readily passed through the lung to the liver and spleen while 10 microm MPs were completely entrapped in the lung for the one-week duration of the study. Approximately 84% of 6 microm MPs that were initially entrapped in the lung were cleared over the next 2 days and 15% were cleared over the remaining 5 days. A Caliper IVIS 100 small animal imaging system confirmed that 3 microm MPs were not retained in the lung but that 6 microm and 10 microm MPs were widely distributed throughout the lung. Moreover, histologic examination showed MP entrapment in capillaries but not arterioles. These studies suggest that for rigid MPs the optimal size range required to achieve transient but highly efficiently targeting to pulmonary capillaries after IV injection is >6 microm but <10 microm in rats and that systemic administration of optimally sized MPs may be an efficient alternative to currently used inhalation-based delivery to the lung.
Collapse
Affiliation(s)
- Hilliard L Kutscher
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
FAIYAZUDDIN M, AHMAD S, IQBAL Z, TALEGAONKAR S, AHMAD FJ, BHATNAGAR A, KHAR RK. Stability Indicating HPTLC Method for Determination of Terbutaline Sulfate in Bulk and from Submicronized Dry Powder Inhalers. ANAL SCI 2010; 26:467-72. [PMID: 20410570 DOI: 10.2116/analsci.26.467] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Md. FAIYAZUDDIN
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| | - Sayeed AHMAD
- Department of Pharmacognosy & Phytochemistry, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| | - Zeenat IQBAL
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| | - Sushma TALEGAONKAR
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| | - Farhan Jalees AHMAD
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| | - Aseem BHATNAGAR
- Department of Nuclear Medicine, Institute of Nuclear Medicine & Allied Sciences (INMAS)
| | - Roop Krishen KHAR
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University (Jamia Hamdard)
| |
Collapse
|
38
|
Shivakumar H, Vaka SRK, Murthy SN. Albumin microspheres for oral delivery of iron. J Drug Target 2009; 18:36-44. [DOI: 10.3109/10611860903156393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
39
|
Wang J, Wang X, Ren L, Wang Q, Li L, Liu W, Wan Z, Yang L, Sun P, Ren L, Li M, Wu H, Wang J, Zhang L. Conjugation of Biomolecules with Magnetic Protein Microspheres for the Assay of Early Biomarkers Associated with Acute Myocardial Infarction. Anal Chem 2009; 81:6210-7. [DOI: 10.1021/ac9007418] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinyi Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Xueqin Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Li Ren
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Qiang Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Li Li
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Wenming Liu
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Zongfang Wan
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Linyan Yang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Peng Sun
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Lili Ren
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Manlin Li
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Heng Wu
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Jinfeng Wang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Lei Zhang
- College of Veterinary Medicine and College of Science, and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| |
Collapse
|
40
|
Iemma F, Spizzirri UG, Puoci F, Cirillo G, Curcio M, Parisi OI, Picci N. Synthesis and release profile analysis of thermo-sensitive albumin hydrogels. Colloid Polym Sci 2009. [DOI: 10.1007/s00396-009-2027-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
41
|
Iemma F, Spizzirri UG, Puoci F, Muzzalupo R, Trombino S, Picci N. Radical Crosslinked Albumin Microspheres as Potential Drug Delivery Systems: Preparation and In Vitro Studies. Drug Deliv 2008; 12:179-84. [PMID: 16025848 DOI: 10.1080/10717540590932278] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
This article reports on the preparation of acryloylated bovine serum albumin microspheres and the evaluation of their employment in drug delivery areas. The influence of preparation parameters on albumin microspheres and the chemicophysical properties of loaded drugs were investigated. In particular, we focussed on acylation albumin degree and the amount of acryloylated albumin against comonomer in the polymerization step. Finally the release profile took into consideration the interaction drug-matrix, the fuctionalization degree of albumin, and the water affinity of matrix.
Collapse
Affiliation(s)
- F Iemma
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, Rende (CS), Italy.
| | | | | | | | | | | |
Collapse
|
42
|
Selek H, Sahin S, Kas HS, Hincal AA, Ponchel G, Ercan MT, Sargon M. Formulation and Characterization of Formaldehyde Cross-linked Degradable Starch Microspheres Containing Terbutaline Sulfate. Drug Dev Ind Pharm 2008; 33:147-54. [PMID: 17454046 DOI: 10.1080/03639040600735046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Preparation of starch microspheres using epichlorohydrin is a time consuming method and requires around 18 hr for cross-linking reaction. To reduce reaction time, terbutaline sulfate (TBS) loaded degradable starch microspheres (DSM) were prepared using formaldehyde as the cross-linking agent. All microspheres were spherical in shape and had a porous, rough surface with a mean particle size of 18-24 microm. Whatever the cross-linking time, it was seen that the release of the TBS was not complete during the release experiments. The influence of enzyme on the degradation of microspheres was moderate. Following intravenous administration, initial uptake of microspheres by the lung was higher than those of other organs.
Collapse
Affiliation(s)
- Handan Selek
- Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | | | | | | | | | | | | |
Collapse
|
43
|
Nettey H, Haswani D, Oettinger CW, D'Souza MJ. Formulation and testing of vancomycin loaded albumin microspheres prepared by spray-drying. J Microencapsul 2007; 23:632-42. [PMID: 17118879 DOI: 10.1080/02652040600776564] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Microparticles are widely employed as carriers of biologically active compounds with many possible applications. For targeted drug delivery and sustained release purposes, biopolymers (i.e. polysaccharides and proteins) have been proposed. In this study, microsphere formulations of vancomycin were prepared by the spray-drying method. Bovine serum albumin (BSA) was used as a polymer matrix and was cross-linked with glutaraldehyde after microsphere preparation. The product yield obtained from the spray-drying method was approximately 75%. The mean particle size was 5 +/- 1.6 microm, with the majority of particles between 4 and 8 microm. The extent of cross-linking affected the release of vancomycin from microspheres. Moreover, both rate and extent of vancomycin release from microspheres decreased with increasing glutaraldehyde concentration. Encapsulation of vancomycin did not alter the bioactivity of the drug and it was more effective in killing Staphylococcus aureus than the solution form.
Collapse
Affiliation(s)
- Henry Nettey
- Department of Pharmaceutical Sciences, Mercer University, Atlanta, GA, USA
| | | | | | | |
Collapse
|
44
|
Abdelkader H, Abdalla OY, Salem H. Formulation of controlled-release baclofen matrix tablets: influence of some hydrophilic polymers on the release rate and in vitro evaluation. AAPS PharmSciTech 2007; 8:E100. [PMID: 18181521 PMCID: PMC2750449 DOI: 10.1208/pt0804100] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 08/10/2006] [Indexed: 11/30/2022] Open
Abstract
This work aims at investigating different types and levels of hydrophilic matrixing agents, including methylcellulose (MC), sodium alginate (Alg), and sodium carboxymethylcellulose (CMC), in an attempt to formulate controlled-release matrix tablets containing 25 mg baclofen. The tablets were prepared by wet granulation. Prior to compression, the prepared granules were evaluated for flow and compression characteristics. In vitro, newly formulated controlled-release tablets were compared with standard commercial tablets (Lioresal and baclofen). The excipients used in this study did not alter physicochemical properties of the drug, as tested by the thermal analysis using differential scanning calorimetry. The flow and compression characteristics of the prepared granules significantly improved by virtue of granulation process. Also, the prepared matrix tablets showed good mechanical properties (hardness and friability). MC- and Alg-based tablet formulations showed high release-retarding efficiency, and good reproducibility and stability of the drug release profiles when stored for 6 months in ambient room conditions, suggesting that MC and Alg are good candidates for preparing modified-release baclofen tablet formulations.
Collapse
Affiliation(s)
- Hamdy Abdelkader
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt.
| | | | | |
Collapse
|
45
|
Mathew ST, Devi SG, KV S. Formulation and evaluation of ketorolac tromethamine-loaded albumin microspheres for potential intramuscular administration. AAPS PharmSciTech 2007; 8:14. [PMID: 17408214 DOI: 10.1208/pt0801014] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The objective of this work was to prepare and evaluate ketorolac tromethamine-loaded albumin microspheres using a factorial design. Albumin microspheres were prepared by emulsion cross-linking method. Selected formulations were characterized for their entrapment efficiency, particle size, surface morphology, and release behavior. Analysis of variance (ANOVA) for entrapment efficiency indicated that entrapment efficiency is best fitted to a response surface linear model. From the statistical analysis it was observed that as the drug:polymer (D:P) ratio and volume of glutaraldehyde increased, there was a significant increase in the encapsulation efficiency. Scanning electron microscopy of the microspheres revealed a spherical, nonporous and uniform appearance, with a smooth surface. Based on the entrapment efficiency and physical appearance, 9 formulations were selected for release study. The maximum particle size observed was below 40 microm. The release pattern was biphasic, characterized by an initial burst effect followed by a slow release. All selected microspheres, except those having less polymer proportion (D:P ratio is 1:1), exhibited a prolonged release for almost 24 hours. On comparing r (2) values for Higuchi and Peppas kinetic models, different batches of microspheres showed Fickian, non-Fickian, and diffusion kinetics. The release mechanism was regulated by D:P ratio and amount of cross-linking agent. From the experimental data obtained with respect to particle size and extent of drug release, it could be concluded that the prepared microspheres are useful for once-a-day intramuscular administration of ketorolac tromethamine.
Collapse
Affiliation(s)
- Sam T Mathew
- Dept of Pharmaceutics, Al-Ameen College of Pharmacy, Hosur Road, at Lalbagh main gate, Bangalore, Karnataka, India.
| | | | | |
Collapse
|
46
|
Pica K, Tchao R, Ofner CM. Gelatin-methotrexate conjugate microspheres as a potential drug delivery system. J Pharm Sci 2006; 95:1896-908. [PMID: 16850436 DOI: 10.1002/jps.20572] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Gelatin-methotrexate microspheres for intra-tumor administration have possibilities for minimizing systemic toxicities of methotrexate (MTX) and overcoming its resistance. Gelatin-MTX conjugates prepared by a carbodiimide reaction were crosslinked with glutaraldehyde to form microspheres (MTX:gelatin molar ratios of 2:1, 15:1, and 21:1). Microspheres were evaluated under in vitro tumor conditions at pH 6.5 and 37 degrees C with and without Cathepsin B (Cat B). Some microspheres were capped with an ethanolamine/cyanoborohydride procedure. SEM of broken microspheres revealed a hollow shell structure. Superficial Cat B degradation influenced some free MTX release but produced no conjugate fragment release. HPLC measured release of fragments (<10 kDa) was very little and release of free MTX was small. However, higher drug load microspheres released less free MTX than lower drug load, a substantial lag phase of free MTX release from capped microspheres changed to an initial rapid release in uncapped microspheres, and fragments were only released from uncapped microspheres. Opened unstable Schiff base crosslinks in uncapped microspheres may allow enzyme to produce conjugate fragments not observed in capped microspheres. Free MTX release may occur from dissolved uncrosslinked conjugate within the hollow microspheres. Important relationships and observations are described that will be useful for gelatin and perhaps other proteinaceous microspheres.
Collapse
Affiliation(s)
- Karen Pica
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences in Philadelphia, 600 South 43rd Street, Philadelphia, Pennsylvania, USA
| | | | | |
Collapse
|
47
|
Iemma F, Spizzirri UG, Puoci F, Muzzalupo R, Trombino S, Picci N. Radical cross-linked albumin microspheres as potential drug delivery systems: preparation and in vitro studies. Drug Deliv 2006; 12:229-34. [PMID: 16036717 DOI: 10.1080/10717540590952690] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The aim of this research is the preparation of acryloylated bovine serum albumin microspheres and the evaluation of their employment in drug delivery. The influence of preparation parameters on albumin microspheres and the chemicophysical properties of loaded drugs were investigated. In particular, we focused our attention on acylation albumin degree, amount of acryloylated albumin against comonomer in the polymerization step, and finally the release profile. We considered on the interaction drug-matrix, the fuctionalization degree of albumin, and the water affinity of matrix.
Collapse
Affiliation(s)
- F Iemma
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, Rende, Italy.
| | | | | | | | | | | |
Collapse
|
48
|
Yong CS, Li DX, Oh DH, Kim JA, Yoo BK, Woo JS, Rhee JD, Choi HG. Retarded dissolution of ibuprofen in gelatin microcapsule by cross-linking with glutaradehyde. Arch Pharm Res 2006; 29:520-4. [PMID: 16833022 DOI: 10.1007/bf02969427] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ibuprofen-loaded gelatin microcapsule, a solid form of microcapsules simultaneously containing ethanol and ibuprofen in water-soluble gelatin shell was previously reported to improve the dissolution of drug. In this study, to retard the initial high dissolution of ibuprofen from gelatin microcapsule, the ibuprofen-loaded cross-linked gelatin microcapsule was prepared by treating an ibuprofen-loaded gelatin microcapsule with glutaraldehyde and its dissolution was evaluated compared to ibuprofen powder and gelatin microcapsule. The ibuprofen-loaded cross-linked microcapsule treated with glutaraldehyde for 10 and 60 sec gave significantly higher dissolution rates than did ibuprofen powder. Furthermore, the dissolution rate of ibuprofen from the cross-linked microcapsule treated for 10 sec was similar to that from gelatin microcapsule. However, the dissolution rate of ibuprofen from the cross-linked microcapsule treated for 60 sec decreased significantly compared to gelatin microcapsule, suggesting that the treatment of gelatin microcapsule with glutaraldehyde for 60 sec could cross-link the gelatin microcapsule. Furthermore, the cross-linking of gelatin microcapsule markedly retarded the release rate of ibuprofen in pH 1.2 simulated gastric fluid compared to gelatin microcapsule. However, the cross-linking of gelatin microcapsule with glutaraldehyde hardly changed the size of gelatin microcapsules, ethanol and ibuprofen contents encapsulated in gelatin microcapsule. Thus, the ibuprofen-loaded cross-linked gelatin microcapsule could retard the initial high dissolution of poorly water-soluble ibuprofen.
Collapse
Affiliation(s)
- Chul-Soon Yong
- College of Pharmacy, Yeungnam University, Gyongsan, Korea
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Iemma F, Spizzirri UG, Puoci F, Muzzalupo R, Trombino S, Cassano R, Leta S, Picci N. pH-sensitive hydrogels based on bovine serum albumin for oral drug delivery. Int J Pharm 2006; 312:151-7. [PMID: 16490328 DOI: 10.1016/j.ijpharm.2006.01.010] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Revised: 11/02/2005] [Accepted: 01/09/2006] [Indexed: 11/20/2022]
Abstract
pH-sensitive bovine serum albumin (BSA) hydrophilic microspheres were prepared by free radical polymerization of methacrylate derivatized BSA and methacrylic acid sodium salt. Incorporation of both monomers in hydrogels was confirmed by Fourier transform infrared spectroscopy. Morphological analysis by scanning electron microscopy showed spherical shape and porous surface of all prepared samples. The microspheres showed high water affinity at neutral pH values and a narrow dimensional distribution. Network density of hydrogels depends on derivatization degree (DD%) of BSA and/or concentration of modified BSA in the polymerization feed. In order to employ the prepared samples such as pH-sensitive hydrogels, in vitro release studies, in media simulating biological fluids, were performed using diflunisal (DF) and beta-propranolol (PR) as model drugs. Experimental data showed that the release profiles depend on drug-matrix interactions and diffusional limitation awardable to crosslinking degree of microparticles. beta-Propranolol is quickly released at pH 1.0 and a complete release after 1 h at pH 6.8 was observed. In the case of diflunisal pH-sensitive release was observed. At pH 1.0 low amounts of drug were released (w/w<10% after 2 h). When the pH is 6.8, the diflunisal release increased in the amount (w/w>75% after 24 h).
Collapse
Affiliation(s)
- Francesca Iemma
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Rende (CS), Italy.
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Thakkar H, Sharma RK, Mishra AK, Chuttani K, Murthy RR. Albumin microspheres as carriers for the antiarthritic drug celecoxib. AAPS PharmSciTech 2005; 6:E65-73. [PMID: 16353965 PMCID: PMC2750413 DOI: 10.1208/pt060112] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The present study investigates the preparation of celecoxib-loaded albumin microspheres and the biodistribution of technetium-99m ((99m)Tc)-labeled celecoxib as well as its microspheres after intravenous administration. Microspheres were prepared using a natural polymer BSA using emulsification chemical cross-linking method. The prepared microspheres were characterized for entrapment efficiency, particle size, and in vitro drug release. Surface morphology was studied by scanning electron microscopy. Biodistribution studies were performed by radiolabeling celecoxib (CS) and its microspheres (CMS) using (99m)Tc and injecting arthritic rats intravenously. The geometric mean diameter of the microspheres was found to be 5.46 microm. In vitro release studies indicated that the microspheres sustained the release of the drug for 6 days. Radioactivity measured in different organs after intravenous administration of celecoxib solution showed a significant amount of radioactivity in the liver and spleen. In case of celecoxib-loaded microspheres, a significant amount of radioactivity accumulated in the lungs. No significant difference (P > .1) in the radioactivity was observed between the inflamed joint and the noninflamed joint following intravenous injection of (99m)Tc-CS. However, in case of the microspheres (CMS), the radioactivity present in the inflamed joint was 2.5-fold higher than in the noninflamed joint. The blood kinetic studies revealed that celecoxib-loaded albumin microspheres exhibited prolonged circulation than the celecoxib solution.
Collapse
Affiliation(s)
- Hetal Thakkar
- Drug Delivery Laboratory, Centre of Relevance and Excellence in New Drug Delivery system Pharmacy Department, Donor's Plaza, Opposite to University main office, MS University of Baroda, Fatehgunj, 390 002 Vadodara, India
| | - Rakesh Kumar Sharma
- Drug Delivery Laboratory, Centre of Relevance and Excellence in New Drug Delivery system Pharmacy Department, Donor's Plaza, Opposite to University main office, MS University of Baroda, Fatehgunj, 390 002 Vadodara, India
| | - Anil Kumar Mishra
- Division of Radiopharmaceuticals and Radiation Biology, Institute of Nuclear Medicine and Allied Sciences, Brig SK Mazumdar Road, 110 054 Delhi, India
| | - Krishna Chuttani
- Division of Radiopharmaceuticals and Radiation Biology, Institute of Nuclear Medicine and Allied Sciences, Brig SK Mazumdar Road, 110 054 Delhi, India
| | - Rayasa Ramchandra Murthy
- Drug Delivery Laboratory, Centre of Relevance and Excellence in New Drug Delivery system Pharmacy Department, Donor's Plaza, Opposite to University main office, MS University of Baroda, Fatehgunj, 390 002 Vadodara, India
| |
Collapse
|