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Griffith M, Poudel BK, Malhotra K, Akla N, González-Andrades M, Courtman D, Hu V, Alarcon EI. Biosynthetic alternatives for corneal transplant surgery. Expert Review of Ophthalmology 2020. [DOI: 10.1080/17469899.2020.1754798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- May Griffith
- Department of Ophthalmology, University of Montreal and Maisonneuve-Rosemont Hospital Research Centre, Montreal, QC, Canada
| | - Bijay Kumar Poudel
- Department of Ophthalmology, University of Montreal and Maisonneuve-Rosemont Hospital Research Centre, Montreal, QC, Canada
| | - Kamal Malhotra
- Department of Ophthalmology, University of Montreal and Maisonneuve-Rosemont Hospital Research Centre, Montreal, QC, Canada
| | - Naoufal Akla
- Department of Ophthalmology, University of Montreal and Maisonneuve-Rosemont Hospital Research Centre, Montreal, QC, Canada
| | - Miguel González-Andrades
- Department of Ophthalmology, Reina Sofia University Hospital and University of Cordoba, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, Spain
| | - David Courtman
- Department of Medicine, University of Ottawa, and Scientist, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Victor Hu
- London School of Hygiene and Tropical Medicine, International Center for Eye Health, London, UK
| | - Emilio I. Alarcon
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, ON, Canada
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Ou W, Byeon JH, Soe ZC, Kim BK, Thapa RK, Gupta B, Poudel BK, Ku SK, Yong CS, Kim JO. Tailored Black Phosphorus for Erythrocyte Membrane Nanocloaking with Interleukin-1 α siRNA and Paclitaxel for Targeted, Durable, and Mild Combination Cancer Therapy. Am J Cancer Res 2019; 9:6780-6796. [PMID: 31660068 PMCID: PMC6815959 DOI: 10.7150/thno.37123] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/15/2019] [Indexed: 02/06/2023] Open
Abstract
Several therapeutic nanosystems have been engineered to remedy the shortcomings of cancer monotherapies, including immunotherapy (stimulating the host immune system to eradicate cancer), to improve therapeutic efficacy with minimizing off-target effects and tumor-induced immunosuppression. Light-activated components in nanosystems confer additional phototherapeutic effects as combinatorial modalities; however, systemic and thermal toxicities with unfavorable accumulation and excretion of nanoystem components now hamper their practical applications. Thus, there remains a need for optimal multifunctional nanosystems to enhance targeted, durable, and mild combination therapies for efficient cancer treatment without notable side effects. Methods: A nanosystem constructed with a base core (poly-L-histidine [H]-grafted black phosphorus [BP]) and a shell (erythrocyte membrane [EM]) is developed to offer a mild photoresponsive (near-infrared) activity with erythrocyte mimicry. In-flight electrostatic tailoring to extract uniform BP nanoparticles maintains a hydrodynamic size of <200 nm (enabling enhanced permeability and retention) after EM cloaking and enhances their biocompatibility. Results: Ephrin-A2 receptor-specific peptide (YSA, targeting cancer cells), interleukin-1α silencing small interfering RNA (ILsi, restricting regulatory T cell trafficking), and paclitaxel (X, inducing durable chemotherapeutics) are incorporated within the base core@shell constructs to create BP-H-ILsi-X@EM-YSA architectures, which provide a more intelligent nanosystem for combination cancer therapies. Conclusion: The in-flight tailoring of BP particles provides a promising base core for fabricating <200 nm EM-mimicking multifunctional nanosystems, which could be beneficial for constructing smarter nanoarchitectures to use in combination cancer therapies.
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Poudel BK, Hwang J, Ku SK, Kim JO, Byeon JH. Plug-and-Play Continuous Gas Flow Assembly of Cysteine-Inserted AuCu Nanobimetals for Folate-Receptor-Targeted Chemo-Phototherapy. ACS Appl Mater Interfaces 2019; 11:17193-17203. [PMID: 31012571 DOI: 10.1021/acsami.9b02330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conjugatable nanobimetals exhibiting broadband light absorption for use as phototherapeutic platforms were assembled via a plug-and-play continuous gas flow route. Electrically produced AuCu nanobunches (NBs) under nitrogen gas flow were directly injected into cysteine (cys) solution through gas pressurization to mechanically spray the solution (AuCu into cys droplets). The sprayed droplets were then exposed to 185 nm UV light (higher photon energy [6.2 eV] than the work functions of Au [5.1 eV] and Cu [4.7 eV]) to initiate photoionization of AuCu NBs for subsequent electrostatic reaction with the SH- group of cys to form cys-inserted AuCu (AuCu-cys) platforms in a single-pass gas stream. These platforms exhibited broadband light absorption spectra because of hybridized interparticle plasmonic coupling and could be conjugated to folic acid (FA) when dispersed in FA solution to form highly dispersible, biocompatible, and cancer-targetable AuCu-cys-FA. This material was suitable for use in targeted phototherapy of folate-receptor (FR)-rich cancers via FR-mediated endocytosis, and loading doxorubicin (DOX) into AuCu-cys-FA (i.e., AuCu-cys-DOXFA) facilitated chemo-phototherapy because of photoresponsive anticancer drug release upon induction of hyperthermia.
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Affiliation(s)
- Bijay Kumar Poudel
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Jungho Hwang
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine , Daegu Haany University , Gyeongsan 38610 , Republic of Korea
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Gautam M, Thapa RK, Poudel BK, Gupta B, Ruttala HB, Nguyen HT, Soe ZC, Ou W, Poudel K, Choi HG, Ku SK, Yong CS, Kim JO. Aerosol technique-based carbon-encapsulated hollow mesoporous silica nanoparticles for synergistic chemo-photothermal therapy. Acta Biomater 2019; 88:448-461. [PMID: 30818051 DOI: 10.1016/j.actbio.2019.02.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 02/11/2019] [Accepted: 02/19/2019] [Indexed: 11/17/2022]
Abstract
Near-infrared (NIR)-responsive drug delivery systems have enhanced tumor ablative efficiency through permeation and retention effects. Graphene oxide (GO) has shown great potential both in photothermal therapy and in drug delivery. Thus, in this study, we designed an ambient spark-generated GO, wrapped on topotecan (TPT)-loaded hollow mesoporous silica nanoparticles (HMSN-NH2-TPT-CGO), to function as an efficient platform for pH-dependent sustained release of TPT. HMSN-NH2-TPT-CGO also exhibited a combined chemo-photothermal effect within a single carrier system. This developed system was stable with a uniform particle size (∼190 nm) and was demonstrated to possess a sufficient heat-absorbing capacity to induce tumor cell ablation. We performed the ablation of tumor cells both in vitro and in vivo in combination with photothermal therapy and chemotherapy using the spark-generated functional GO and HMSN. The prepared nanocarriers demonstrated high cellular uptake, apoptosis, and G0/G1 cell cycle arrest. In vivo study using the MDA-MB-231 xenograft model revealed the ultraefficient tumor ablative performance of HMSN-NH2-TPT-CGO compared with that of free TPT, with no toxic effect on vital organs. Altogether, the optimized nanocarriers presented a significant potential to act as a vehicle for cancer treatment. STATEMENT OF SIGNIFICANCE: This is the first study that uses spark-generated graphene oxide nanoflakes to cover the topotecan (TPT)-loaded hollow mesoporous silica nanoparticles (HMSNs) to treat breast cancer. Dense silica was used as a hard template to prepare the HMSNs attributing to a high drug payload. The concentration of Na2CO3 was precisely controlled to minimize the silica etching time within 70 min. The use of the nanographene flakes served a dual purpose, first, by acting as a capping agent to prevent the premature release of drug and, second, by serving as a nano heater that significantly ablates the tumor cells. The prepared nanocarriers (NCs) exhibited effective and enhanced in vitro and in vivo apoptosis, as well as significant tumor growth inhibition even after 15 days of treatment time, with no toxic effect to the vital organs. The NCs enhanced in vitro tumor cell killing effects and served as an effective carrier for in vivo tumor regression, thereby highlighting the enormous potential of this system for breast cancer therapy.
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Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-702, Republic of Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
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Soe ZC, Poudel BK, Nguyen HT, Thapa RK, Ou W, Gautam M, Poudel K, Jin SG, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Folate-targeted nanostructured chitosan/chondroitin sulfate complex carriers for enhanced delivery of bortezomib to colorectal cancer cells. Asian J Pharm Sci 2019; 14:40-51. [PMID: 32104437 PMCID: PMC7032194 DOI: 10.1016/j.ajps.2018.09.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/10/2018] [Accepted: 09/23/2018] [Indexed: 02/04/2023] Open
Abstract
Folate-targeting self-assembled nanoparticles (NPs) using biocompatible and biodegradable natural polymers chitosan (Cs) and chondroitin sulfate (Chs) were developed to address the major challenge in cancer treatment, the selective delivery of nanoparticles to the target site. In this study, we successfully incorporated a hydrophobic drug, bortezomib (Bor), into folic acid (FA)-conjugated Cs/Chs self-assembled NPs (Bor/Cs/Chs-FA) for colorectal cancer therapy. The particle size and polydispersity index of Bor/Cs/Chs-FA were ∼196.5 ± 1.2 nm and ∼0.21 ± 0.5, respectively. A pH-dependent release profile was observed, facilitating cancer cell-targeted drug release under an acidic tumor microenvironment. Moreover, in vitro data revealed enhanced cellular uptake and apoptosis in folate receptor-expressing colorectal cancer cells (HCT-116 and HT-29) as compared to that in lung cancer cells (A549), which do not express folate receptors. Furthermore, intravenous administration of Bor/Cs/Chs-FA in a HCT-116 bearing xenograft mouse model showed that the NPs were a safe and effective drug delivery system. The results suggest that folate-targeted nanoparticle can be effectively applied for efficient chemotherapy of colorectal cancer.
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Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
- Department of Pharmaceutics, University of Pharmacy (Yangon), Yangon 11031, Myanmar
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, Cheonan 31116, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Haany University, Gyeongsan 712715, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Ansan 426791, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
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Gupta B, Poudel BK, Ruttala HB, Regmi S, Pathak S, Gautam M, Jin SG, Jeong JH, Choi HG, Ku SK, Yong CS, Kim JO. Hyaluronic acid-capped compact silica-supported mesoporous titania nanoparticles for ligand-directed delivery of doxorubicin. Acta Biomater 2018; 80:364-377. [PMID: 30201431 DOI: 10.1016/j.actbio.2018.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/04/2018] [Accepted: 09/06/2018] [Indexed: 12/26/2022]
Abstract
Mesoporous titania nanoparticles (MTN), owing to their high surface area to volume ratio and tunable pore sizes, appear capable of delivering sizable amounts of drug payloads, and hence, show considerable promise as drug delivery candidates in cancer therapy. We designed silica-supported MTN (MTNst) coated with hyaluronic acid (HA) to effectively deliver doxorubicin (DOX) for breast cancer therapy. The HA coating served a dual purpose of stabilizing the payload in the carriers as well as actively targeting the nanodevices to CD44 receptors. The so-formed HA-coated MTNst carrying DOX (HA/DOX-MTNst) had spheroid particles with a considerable drug-loading capacity and showed significantly superior in vitro cytotoxicity against MDA-MB-231 cells as compared to free DOX. HA/DOX-MTNst markedly improved the cellular uptake of DOX in an apparently CD44 receptor-dependent manner, and increased the number of apoptotic cells as compared to free DOX. These nanoplatforms accumulated in large quantities in the tumors of MDA-MB-231 xenograft tumor-bearing mice, where they significantly enhanced the inhibition of tumor growth compared to that observed with free DOX with no signs of acute toxicity. Based on these excellent results, we deduced that HA/DOX-MTNst could be successfully used for targeted breast cancer therapy. STATEMENT OF SIGNIFICANCE: This is the first study to use silica-supported mesoporous titania nanoparticles (MTNst) for doxorubicin (DOX) delivery to treat breast cancer, which exhibited effective and enhanced in vitro and in vivo apoptosis and tumor growth inhibition. Solid silica was used to support the mesoporous TiO2 resulting in MTNst, which efficiently incorporated a high DOX payload. The hyaluronic acid (HA) coating over the MTNst surface served a dual purpose of first, stabilizing DOX inside the MTNst (capping agent), and second, directing the nanoplatform device to CD44 receptors that are highly expressed in MDA-MB-231 cells (targeting ligand). The NPs exhibited highly efficacious in vitro tumor-cell killing and excellent in vivo tumor regression, highlighting the enormous promise of this system for breast cancer therapy.
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Affiliation(s)
- Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Shobha Regmi
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Shiva Pathak
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-702, Republic of Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea.
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Poudel BK, Soe ZC, Ruttala HB, Gupta B, Ramasamy T, Thapa RK, Gautam M, Ou W, Nguyen HT, Jeong JH, Jin SG, Choi HG, Yong CS, Kim JO. In situ fabrication of mesoporous silica-coated silver-gold hollow nanoshell for remotely controllable chemo-photothermal therapy via phase-change molecule as gatekeepers. Int J Pharm 2018; 548:92-103. [DOI: 10.1016/j.ijpharm.2018.06.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/18/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
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Gupta B, Ruttala HB, Poudel BK, Pathak S, Regmi S, Gautam M, Poudel K, Sung MH, Ou W, Jin SG, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Polyamino Acid Layer-by-Layer (LbL) Constructed Silica-Supported Mesoporous Titania Nanocarriers for Stimuli-Responsive Delivery of microRNA 708 and Paclitaxel for Combined Chemotherapy. ACS Appl Mater Interfaces 2018; 10:24392-24405. [PMID: 29978708 DOI: 10.1021/acsami.8b06642] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cellular Fas-associated protein with death domain-like interleukin-1β-converting enzyme-inhibitory protein (c-FLIP), often strongly expressed in numerous cancers, plays a pivotal role in thwarting apoptosis and inducing chemotherapy resistance in cancer. An integrated approach combining chemotherapy with suppression of c-FLIP levels could prove paramount in the treatment of cancers with c-FLIP overexpression. In this study, we utilized a polymeric layer-by-layer (LbL) assembly of silica-supported mesoporous titania nanoparticles (MTNst) to co-deliver paclitaxel (PTX) and microRNA 708 (miR708) for simultaneous chemotherapy and c-FLIP suppression in colorectal carcinoma. The resulting LbL miR708/PTX-MTNst showed dose-dependent cytotoxicity in HCT-116 and DLD-1 colorectal carcinoma cell lines, which was remarkably superior to that of free PTX or LbL PTX-MTNst. LbL miR708/PTX-MTNst strongly inhibited c-FLIP expression and resulted in increased expression of proapoptotic proteins. In DLD-1 xenograft tumor-bearing mice, the nanoparticles accumulated in the tumor, resulting in remarkable tumor regression, with the PTX and miR708-loaded nanoparticles showing significantly greater inhibitory effects than the free PTX or PTX-loaded nanoparticles. Immunohistochemical analyses of the tumors further confirmed the remarkable apoptotic and antiproliferative effects of the nanoparticles, whereas organ histology reinforced the biocompatibility of the system. Therefore, the LbL miR708/PTX-MTNst system, owing to its ability to deliver both chemotherapeutic drug and inhibitory miRNA to the tumor site, shows great potential to treat colorectal carcinoma in clinical settings.
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Affiliation(s)
- Biki Gupta
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Shiva Pathak
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Shobha Regmi
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Milan Gautam
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Min Hyun Sung
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Wenquan Ou
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering , Dankook University , 119 Dandae-ro , Dongnam-gu, Cheonan 31116 , Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine , Daegu Haany University , Gyeongsan 712-702 , Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology , Hanyang University , 55, Hanyangdaehak-ro , Sangnok-gu, Ansan 426-791 , Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
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Thapa RK, Choi JY, Gupta B, Ramasamy T, Poudel BK, Ku SK, Youn YS, Choi HG, Yong CS, Kim JO. Liquid crystalline nanoparticles encapsulating cisplatin and docetaxel combination for targeted therapy of breast cancer. Biomater Sci 2018; 4:1340-50. [PMID: 27412822 DOI: 10.1039/c6bm00376a] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cancer remains a leading cause of death. A combination of anticancer agents can effectively kill cancer through multiple pathways; however, improvements to their delivery are needed. Hence, docetaxel and cisplatin-loaded liquid crystalline nanoparticles with folic acid were prepared for effective and targeted anticancer therapy. Notably, hydroxypropyl-β-cyclodextrin/cisplatin complexes in 0.9% NaCl solution were used for the prevention of possible aquation of cisplatin, which would otherwise lead to severe adverse effects. The optimized nanoparticles exhibited small particle size, high drug loading capacity (>90%), and controlled drug release profiles. In vitro cell cytotoxicity assays demonstrated that the optimized nanoparticles were taken up by folate receptor-expressing cells to a greater extent than non-folate expressing cells, which is attributable to folate-specific endocytosis of the optimized nanoparticles. Enhanced expression of apoptotic markers (Bax, p21, and cleaved caspase-3) along with enhanced anti-migration effects in MDA-MB-231 cells following treatment suggests that the optimized nanoparticles provide an effective treatment for metastatic breast cancer. These results were further supported by in vivo findings obtained for a MDA-MB-231 tumor xenograft model. Altogether, the optimized nanoparticles may potentially be developed as an effective treatment modality for folate-targeted metastatic breast cancer treatment.
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Affiliation(s)
- Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Ju Yeon Choi
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Thiruganesh Ramasamy
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan, 712-702, South Korea
| | - Yu Seok Youn
- School of Pharmacy, SunKyunKwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 440-746, South Korea
| | - Han Gon Choi
- College of Pharmacy, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongsanbuk-do, 712-749, South Korea.
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Gupta B, Poudel BK, Regmi S, Pathak S, Ruttala HB, Gautam M, An GJ, Jeong JH, Choi HG, Yong CS, Kim JO. Paclitaxel and Erlotinib-co-loaded Solid Lipid Core Nanocapsules: Assessment of Physicochemical Characteristics and Cytotoxicity in Non-small Cell Lung Cancer. Pharm Res 2018. [DOI: 10.1007/s11095-017-2337-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Poudel BK, Kim JO, Byeon JH. Photoinduced Rapid Transformation from Au Nanoagglomerates to Drug-Conjugated Au Nanovesicles. Adv Sci (Weinh) 2018; 5:1700563. [PMID: 29593959 PMCID: PMC5867042 DOI: 10.1002/advs.201700563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/11/2017] [Indexed: 06/01/2023]
Abstract
Gold (Au) agglomerates (AGs) are reassembled using Triton X-100 (T) and doxorubicin (D) dissolved in ethanol under 185 nm photoirradiation to form TAuD nanovesicles (NVs) under ambient gas flow conditions. The positively charged Au particles are then electrostatically conjugated with the anionic chains of TD components via a flowing drop (FD) reaction. Photoirradiation of the droplets in a tubular reactor continues the photophysicochemical reactions, resulting in the reassembly of Au AGs and TD into TAuD NVs. The fabricated NVs are electrostatically collected onto a polished aluminum rod in a single-pass configuration. The dispersion of NVs is employed for bioassays to confirm uptake by cells and accumulation in tumors. The chemo-photothermal activity is determined both in vitro and in vivo. Different combinations of components are also used to fabricate NVs using the FD reaction, and these NVs are suitable for gene delivery as well. This newly designed gaseous single-pass process results in the reassembly of Au AGs for incorporation with TD without the need of batch wet chemical reactions, modifications, separations, or purifications. Thus, this process offers an efficient platform for preparing biofunctional Au nanostructures that requires neither complex physicochemical steps nor special storage techniques.
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Affiliation(s)
- Bijay Kumar Poudel
- School of Mechanical EngineeringYeungnam UniversityGyeongsan38541Republic of Korea
| | - Jong Oh Kim
- College of PharmacyYeungnam UniversityGyeongsan38541Republic of Korea
| | - Jeong Hoon Byeon
- School of Mechanical EngineeringYeungnam UniversityGyeongsan38541Republic of Korea
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12
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Abstract
Labeling of aerosol particles with a radioactive, magnetic, or optical tracer has been employed to confirm particle localization in cell compartments, which has provided useful evidence for correlating toxic effects of inhaled particles. However, labeling requires several physicochemical steps to identify functionalities of the inner or outer surfaces of particles, and moreover, these steps can cause changes in size, surface charge, and bioactivity of the particles, resulting in misinterpretations regarding their toxic effects. This study addresses this challenging issue with a goal of introducing an efficient strategy for constantly supplying labeled aerosol particles in a single-pass configuration without any pre- or post-physicochemical batch treatments of aerosol particles. Carbon black (CB, simulating combustion-generated soot) or calcium carbonate (CC, simulating brake-wear fragments) particles were constantly produced via spark ablation or bubble bursting, respectively. These minute particles were incorporated with fluorescein isothiocyanate-poly(ethylene glycol) 2-aminoethyl ether acetic acid solution at the orifice of a collison atomizer to fabricate hybrid droplets. The droplets successively entered a diffusion dryer containing 254-nm UV irradiation; therefore, the droplets were dynamically stiffened by UV to form fluorescent probes on particles during solvent extraction in the dryer. Particle size distributions, morphologies, and surface charges before and after labeling were measured to confirm fluorescence labeling without significant changes in the properties. In vitro assays, including confocal imaging, were conducted to confirm the feasibility of the labeling approach without inducing significant differences in bioactivity compared with untreated CB or CC particles.
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Affiliation(s)
- Bijay Kumar Poudel
- a School of Mechanical Engineering , Yeungnam University , Gyeongsan , Republic of Korea
| | - Jae Hong Park
- b School of Health Sciences , Purdue University , West Lafayette , IN , USA
| | - Jiseok Lim
- a School of Mechanical Engineering , Yeungnam University , Gyeongsan , Republic of Korea
| | - Jeong Hoon Byeon
- a School of Mechanical Engineering , Yeungnam University , Gyeongsan , Republic of Korea
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13
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Poudel BK, Gupta B, Ramasamy T, Thapa RK, Pathak S, Oh KT, Jeong JH, Choi HG, Yong CS, Kim JO. PEGylated thermosensitive lipid-coated hollow gold nanoshells for effective combinational chemo-photothermal therapy of pancreatic cancer. Colloids Surf B Biointerfaces 2017; 160:73-83. [PMID: 28917152 DOI: 10.1016/j.colsurfb.2017.09.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/31/2017] [Accepted: 09/04/2017] [Indexed: 11/24/2022]
Abstract
Pancreatic cancer has extremely poor prognosis with an 85% mortality rate that results from aggressive and asymptomatic growth, high metastatic potential, and rapid development of resistance to already ineffective chemotherapy. In this study, plasmonic hollow gold nanoshells (GNS) coated with PEGylated thermosensitive lipids were prepared as an efficient platform to ratiometrically co-deliver two drugs, bortezomib and gemcitabine (GNS-L/GB), for combinational chemotherapy and photothermal therapy of pancreatic cancer. Bortezomib was loaded within the lipid bilayers, while gemcitabine was loaded into the hydrophilic interior of the porous GNS via an ammonium sulfate-driven pH gradient method. Physicochemical characterizations and biological studies of GNS-L/GB were performed, with the latter using cytotoxicity assays, cellular uptake and apoptosis assays, live/dead assays, and western blot analysis of pancreatic cancer cell lines (MIA PaCa-2 and PANC-1). The nanoshells showed remotely controllable drug release when exposed to near-infrared laser for site-specific delivery. GNS-L/GB showed synergistic cytotoxicity and improved internalization by cancer cells. High-powered near-infrared continuous wave laser (λ=808nm) effectively killed cancer cells via the photothermal effect of GNS-L/GB, irrespective of cell type in a power density-, time-, and GNS dose-dependent manner. These results suggest that this method can provide a novel approach to achieve synergistic combinational chemotherapy and photothermal therapy, even with resistant pancreatic cancer.
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Affiliation(s)
- Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Thiruganesh Ramasamy
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Shiva Pathak
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 221 Heuksuk-dong Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 712-749, Republic of Korea.
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Poudel BK, Choi J, Park JH, Doh KO, Byeon JH. In vitro exposure of simulated meat-cooking fumes to assess adverse biological effects. Sci Rep 2017; 7:10841. [PMID: 28883490 PMCID: PMC5589928 DOI: 10.1038/s41598-017-11502-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/25/2017] [Indexed: 12/30/2022] Open
Abstract
The heterocyclic amine 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is considered as a human carcinogenic or mutagenic compound that is produced from the co-condensation of creatinine and amino acids as meats cook at high temperatures. The cooking of meats at high temperatures produces fumes, and these fumes can be suspended as aerosols via the vapor-to-particle (or -droplet) process in a temperature gradient field. Size distributions of the aerosols included a significant portion of nano- and submicron-sized particles, and these can be directly deposited in the lungs and on skin by particle transport phenomena near cooking areas. In this study, for the first time, PhIP-incorporated oleic acid (OA, simulating cooking oil) (PhIP@OA) particles, including individual particulate PhIP as simulated fumes from meat cooking, were constantly produced via collison atomization and subsequent drying processes. The aerosol particles were then dispersed in phosphate-buffered saline for cytotoxicity and senescence-associated β-galactosidase assays, which were compared with dissolved PhIP in dimethyl sulfoxide. PhIP and PhIP@OA did not show significant cytotoxic effects on SHSY5Y, MRC5, and human dermal fibroblast cells compared with the dissolved PhIP but clearly induced premature senescence activities that may be caused by a limited release of PhIP molecules from the particulate PhIP.
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Affiliation(s)
- Bijay Kumar Poudel
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jungwook Choi
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jae Hong Park
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, United States.
| | - Kyung-Oh Doh
- Department of Physiology, Yeungnam University, Daegu, 42415, Republic of Korea.
| | - Jeong Hoon Byeon
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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15
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Ramasamy T, Ruttala HB, Gupta B, Poudel BK, Choi HG, Yong CS, Kim JO. Smart chemistry-based nanosized drug delivery systems for systemic applications: A comprehensive review. J Control Release 2017; 258:226-253. [DOI: 10.1016/j.jconrel.2017.04.043] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 04/28/2017] [Accepted: 04/30/2017] [Indexed: 12/21/2022]
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16
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Poudel BK, Park JH, Byeon JH. On-Demand Gas-to-Liquid Process To Fabricate Thermoresponsive Antimicrobial Nanocomposites and Coatings. ACS Appl Mater Interfaces 2017; 9:15342-15349. [PMID: 28422479 DOI: 10.1021/acsami.7b05167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Antimicrobial material is emerging as a major component of the mitigation strategy against microbial growth on abiotic surfaces. In this work, a newly designed process is proposed to fabricate thermoresponsive antimicrobial nanocomposites (TANs) and coatings (TACs) as an on-demand system. Thermoresponsive polymer (TRP)-incorporated silver (Ag) nanocomposites with silica nanoparticles (SNPs) or carbon nanotubes (CNTs; Ag-SNP@TRP or Ag-CNT@TRP) were produced by a single-pass gas-to-liquid process. The SNPs or CNTs were first produced by spark ablation and successively injected for dispersal in a liquid cell containing polydimethylsiloxane, poly(N-isopropylacrylamide), and silver nitrate under ultrasound irradiation. Suspensions of Ag-SNP@TRP or Ag-CNT@TRP nanocomposites were then deposited on a touch screen panel (TSP) protection film via electrohydrodynamic spray to form transparent antibacterial coatings. Fundamental antibacterial activities of TANs were evaluated against Escherichia coli and Staphylococcus epidermidis. The TANs showed stronger antibacterial activities at the higher temperature for all testing conditions. Lower minimum inhibitory concentrations of Ag-SNP@TRP and Ag-CNT@TRP nanocomposites were required against the two bacteria at 37 °C compared to those at 27 °C. The TACs on display showed elevated antimicrobial activity when the panel was turned on (38.1 °C) compared with when the panel was turned off (23.8 °C). This work provides a utilizable concept to continuously fabricate TANs and TACs, and it specifically offers stimuli-sensitive control of antimicrobial activity on TSPs, including other frequently touched surfaces.
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Affiliation(s)
- Bijay Kumar Poudel
- School of Mechanical Engineering, Yeungnam University , Gyeongsan 38541, Republic of Korea
| | - Jae Hong Park
- School of Health Sciences, Purdue University , West Lafayette, Indiana 47907, United States
| | - Jeong Hoon Byeon
- School of Mechanical Engineering, Yeungnam University , Gyeongsan 38541, Republic of Korea
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17
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Gupta B, Ramasamy T, Poudel BK, Pathak S, Regmi S, Choi JY, Son Y, Thapa RK, Jeong JH, Kim JR, Choi HG, Yong CS, Kim JO. Development of Bioactive PEGylated Nanostructured Platforms for Sequential Delivery of Doxorubicin and Imatinib to Overcome Drug Resistance in Metastatic Tumors. ACS Appl Mater Interfaces 2017; 9:9280-9290. [PMID: 28240860 DOI: 10.1021/acsami.6b09163] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Metastasis of cancers accounts for almost all cancer-related deaths. In this study, we report a PEGylated nanostructured platform for coadministration of doxorubicin (DOX) and imatinib (IMT) intended to effectively inhibit metastatic tumors. The DOX and IMT coloaded nanostructured system (DOX/IMT-N) is characterized by an excellent encapsulation potential for both drugs and shows sequential and sustained drug release in vitro. DOX/IMT-N significantly inhibited the in vitro proliferation of MDA-MB-231 and SK-MEL-28 cells. The inhibitory effect on in vitro proliferation of the cells was significantly greater than the effect of free DOX, DOX/IMT cocktail, or the nanostructured system housing DOX only (DOX-N). DOX/IMT-N remarkably enhanced cellular drug uptake, resulting in enhanced apoptosis, caused by significant increases in the expression levels of apoptotic marker proteins. Intravenous administration of DOX/IMT-N to MBA-MB-231 xenograft tumor-bearing mice resulted in significantly improved inhibition of tumor progression compared to that with DOX, DOX/IMT, or DOX-N. Therefore, the nanostructured DOX/IMT-N system could potentially aid in overcoming drug resistance in metastatic tumors and improve the effectiveness of metastatic tumor therapeutics.
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Affiliation(s)
- Biki Gupta
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Thiruganesh Ramasamy
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Shiva Pathak
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Shobha Regmi
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Ju Yeon Choi
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Youlim Son
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University , Daegu 705-717, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jae Ryong Kim
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University , Daegu 705-717, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University , 214-1 Dae-Dong, Gyeongsan 712-749, South Korea
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18
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Regmi S, Cao J, Pathak S, Gupta B, Kumar Poudel B, Tung PT, Yook S, Park JB, Yong CS, Kim JO, Yoo JW, Jeong JH. A three-dimensional assemblage of gingiva-derived mesenchymal stem cells and NO-releasing microspheres for improved differentiation. Int J Pharm 2017; 520:163-172. [PMID: 28185957 DOI: 10.1016/j.ijpharm.2017.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/26/2017] [Accepted: 02/05/2017] [Indexed: 12/16/2022]
Abstract
Stem cell therapy is an attractive approach to bone tissue regeneration. Nitric oxide (NO) has been reported to facilitate osteogenic differentiation of stem cells. To enhance osteogenic differentiation of gingiva-derived mesenchymal stem cells (GMSCs), we designed a method for in situ delivery of exogenous NO to these cells. A NO donor, polyethylenimine/NONOate, was incorporated into poly(lactic-co-glycolic acid) microspheres to deliver NO to the cells for an extended period of time under in vitro culture conditions. A hybrid aggregate of GMSCs and NO-releasing microspheres was prepared by the hanging drop technique. Confocal microscopy revealed homogeneous arrangement of the stem cells and microspheres in heterospheroids. Western blot analysis and live-dead imaging showed no significant change in cell viability. Importantly, the in situ delivery of NO within the heterospheroids enhanced osteogenic differentiation indicated by a 1.2-fold increase in alkaline phosphatase activity and an approximately 10% increase in alizarin red staining. In addition, a low dose of NO promoted proliferation of the GMSCs in this 3D system. Thus, delivery of the NO-releasing microsphers to induce differentiation of stem cells within this three dimensional system may be one of possible strategies to direct differentiation of a stem cell-based therapeutic agent toward a specific lineage.
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Affiliation(s)
- Shobha Regmi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jiafu Cao
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Shiva Pathak
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Pham Thanh Tung
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Simmyung Yook
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
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19
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Ramasamy T, Poudel BK, Ruttala H, Choi JY, Hieu TD, Umadevi K, Youn YS, Choi HG, Yong CS, Kim JO. Cationic drug-based self-assembled polyelectrolyte complex micelles: Physicochemical, pharmacokinetic, and anticancer activity analysis. Colloids Surf B Biointerfaces 2016; 146:152-60. [DOI: 10.1016/j.colsurfb.2016.06.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 11/15/2022]
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20
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Poudel BK, Gupta B, Ramasamy T, Thapa RK, Youn YS, Choi HG, Yong CS, Kim JO. Development of polymeric irinotecan nanoparticles using a novel lactone preservation strategy. Int J Pharm 2016; 512:75-86. [PMID: 27558884 DOI: 10.1016/j.ijpharm.2016.08.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 07/19/2016] [Accepted: 08/08/2016] [Indexed: 11/26/2022]
Abstract
Irinotecan (IRT) is an important part of the first- and second-line regimen for metastatic colorectal and some other cancers. However, IRT suffers the constraints of pH-dependent conversion of active lactone form to inactive carboxylate form, burst release owing to its aqueous solubility, short half-life and dose-dependent side effects. In this study, we developed polymeric nanoparticles (NPs) that not only deliver IRT to tumor sites, but also overcome its drawbacks by preserving active lactone conformation, prolonging the plasma circulation time, and by providing sustained release. IRT complex was rendered hydrophobic by ion-pairing with anions (docusate sodium, sodium lauryl sulfate, and sodium tripolyphosphate), and loaded in PEG-PLGA NPs via water/oil/water double emulsification method. The NPs were spherical, ∼60nm, monodispersed, and had shell-core morphology. They retained >80% lactone form for more than 1 month of storage and exhibited sustained release characteristics. In addition, sub -100nm size of NPs offered elevated cellular internalization. Owing to the presence of hydrophilic PEG outer layer and drug-loaded hydrophobic PLGA core, NPs conferred excellent plasma stability and prolonged the retention time of IRT by more than 10-fold as compared to free IRT. Therefore, this system could provide an excellent platform for efficient and sustained delivery of IRT and similar labile drugs to the tumor site, while maintaining their chemical integrity.
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Affiliation(s)
- Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea
| | - Thiruganesh Ramasamy
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea
| | - Yu Seok Youn
- School of Pharmacy, SungKyunKwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon 440-746, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55, Hanyangdaehak-Ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, South Korea.
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21
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Thapa RK, Choi JY, Poudel BK, Choi HG, Yong CS, Kim JO. Receptor-targeted, drug-loaded, functionalized graphene oxides for chemotherapy and photothermal therapy. Int J Nanomedicine 2016; 11:2799-813. [PMID: 27358565 PMCID: PMC4912319 DOI: 10.2147/ijn.s105401] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Cancer is one of the leading causes of death worldwide. Although different chemotherapeutic agents have been developed to treat cancers, their use can be limited by low cellular uptake, drug resistance, and side effects. Hence, targeted drug delivery systems are continually being developed in order to improve the efficacy of chemotherapeutic agents. The main aim of this study was to prepare folic acid (FA)-conjugated polyvinyl pyrrolidone-functionalized graphene oxides (GO) (FA-GO) for targeted delivery of sorafenib (SF). GO were prepared using a modified Hummer’s method and subsequently altered to prepare FA-GO and SF-loaded FA-GO (FA-GO/SF). Characterization of GO derivatives was done using ultraviolet/visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy, zeta potential measurements, and determination of in vitro drug release. Hemolytic toxicity, in vitro cytotoxicity, cellular uptake, and apoptotic effects of FA-GO/SF were also investigated. The results revealed that GO was successfully synthesized and that further transformation to FA-GO improved the stability and SF drug-loading capacity. In addition, the enhanced SF release under acidic conditions suggested possible benefits for cancer treatment. Conjugation of FA within the FA-GO/SF delivery system enabled targeted delivery of SF to cancer cells expressing high levels of FA receptors, thus increasing the cellular uptake and apoptotic effects of SF. Furthermore, the photothermal effect achieved by exposure of GO to near-infrared irradiation enhanced the anticancer effects of FA-GO/SF. Taken together, FA-GO/SF is a potential carrier for targeted delivery of chemotherapeutic agents in cancer.
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Affiliation(s)
- Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, South Korea
| | - Ju Yeon Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, South Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Ansan, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, South Korea
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22
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Gupta B, Poudel BK, Pathak S, Tak JW, Lee HH, Jeong JH, Choi HG, Yong CS, Kim JO. Effects of Formulation Variables on the Particle Size and Drug Encapsulation of Imatinib-Loaded Solid Lipid Nanoparticles. AAPS PharmSciTech 2016; 17:652-62. [PMID: 26304931 DOI: 10.1208/s12249-015-0384-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/03/2015] [Indexed: 11/30/2022] Open
Abstract
Imatinib (IMT), an anticancer agent, inhibits receptor tyrosine kinases and is characterized by poor aqueous solubility, extensive first-pass metabolism, and rapid clearance. The aims of the current study are to prepare imatinib-loaded solid lipid nanoparticles (IMT-SLN) and study the effects of associated formulation variables on particle size and drug encapsulation on IMT-SLN using an experimental design. IMT-SLN was optimized by use of a "combo" approach involving Plackett-Burman design (PBD) and Box-Behnken design (BBD). PBD screening resulted in the determination of organic-to-aqueous phase ratio (O/A), drug-to-lipid ratio (D/L), and amount of Tween® 20 (Tw20) as three significant variables for particle size (S z), drug loading (DL), and encapsulation efficiency (EE) of IMT-SLN, which were used for optimization by BBD, yielding an optimized criteria of O/A = 0.04, D/L = 0.03, and Tw20 = 2.50% w/v. The optimized IMT-SLN exhibited monodispersed particles with a size range of 69.0 ± 0.9 nm, ζ-potential of -24.2 ± 1.2 mV, and DL and EE of 2.9 ± 0.1 and 97.6 ± 0.1% w/w, respectively. Results of in vitro release study showed a sustained release pattern, presumably by diffusion and erosion, with a higher release rate at pH 5.0, compared to pH 7.4. In conclusion, use of the combo experimental design approach enabled clear understanding of the effects of various formulation variables on IMT-SLN and aided in the preparation of a system which exhibited desirable physicochemical and release characteristics.
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Pathak S, Gupta B, Poudel BK, Tran TH, Regmi S, Pham TT, Thapa RK, Kim MS, Yong CS, Kim JO, Jeong JH. Preparation of High-Payload, Prolonged-Release Biodegradable Poly(lactic- co-glycolic acid)-Based Tacrolimus Microspheres Using the Single-Jet Electrospray Method. Chem Pharm Bull (Tokyo) 2016; 64:171-8. [DOI: 10.1248/cpb.c15-00799] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Biki Gupta
- College of Pharmacy, Yeungnam University
| | | | | | | | | | | | - Min-Soo Kim
- College of Pharmacy, Pusan National University
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Tran TH, Nguyen TD, Poudel BK, Nguyen HT, Kim JO, Yong CS, Nguyen CN. Development and Evaluation of Artesunate-Loaded Chitosan-Coated Lipid Nanocapsule as a Potential Drug Delivery System Against Breast Cancer. AAPS PharmSciTech 2015; 16:1307-16. [PMID: 25787869 PMCID: PMC4666268 DOI: 10.1208/s12249-015-0311-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 02/11/2015] [Indexed: 11/30/2022] Open
Abstract
Artesunate (ART)--a well-known hydrophobic anti-malarial agent was incorporated in a polymer-lipid hybrid nanocolloidal system for anti-cancer therapeutic. The lipid negatively charged nanoemulsion was formulated by modified hot homogenization method then covered with positively charged chitosan via electrostatic interaction to obtain chitosan-coated lipid nanocapsule (ART-CLN). Physical properties of the system were characterized in terms of size, charge, morphology, drug loading capacity, and physical state. In addition, anti-cancer activities were confirmed by conducting MTT assay for ART and ART-CLN on different cancer cell lines. Obtained ART-CLN after coating chitosan revealed positive charge (13.2 ± 0.87 mV), small particle size (160.9 ± 3.5 nm), and spherical shape. High drug entrapment efficiency (95.49 ± 1.13%) and sustained release pattern were observed. Moreover, the good cellular uptake was recorded by flow cytometry as well as confocal image. Finally, ART-CLN exhibited stronger anti-cancer activity than free ART on breast cancer cell lines (MCF-7, MDA-MB-231). These results suggested that by loading ART into lipid core of polymer-lipid hybrid carrier, the activity and physical stability of ART can be significantly increased for cancer chemotherapy.
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Affiliation(s)
- Tuan Hiep Tran
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan, 712-749, South Korea
| | - Tuan Duc Nguyen
- National Institute of Pharmaceutical Technology, Hanoi University of Pharmacy, 13-15 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan, 712-749, South Korea
| | - Hanh Thuy Nguyen
- National Institute of Pharmaceutical Technology, Hanoi University of Pharmacy, 13-15 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan, 712-749, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan, 712-749, South Korea.
| | - Chien Ngoc Nguyen
- National Institute of Pharmaceutical Technology, Hanoi University of Pharmacy, 13-15 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam.
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Tak JW, Hiep TT, Tung PT, Poudel BK, Woo KB, Kim DS, Choi HG, Chun IK, Jeong JH, Yong CS, Kim JO. WITHDRAWN: Tumor-targeting, pH-sensitive nanoparticles for docetaxel delivery to drug-resistant cancer cells. Asian J Pharm Sci 2015. [DOI: 10.1016/j.ajps.2015.11.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Woo KB, Gupta B, Shiva P, Poudel BK, Thuy NH, Tapa RK, Choi HG, Jeong JH, Kim JO, Yong CS. WITHDRAWN: Improved pharmacokinetic and cytotoxicity characteristics of imatinib by utilizing nanostructured lipid carriers. Asian J Pharm Sci 2015. [DOI: 10.1016/j.ajps.2015.11.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Poudel BK, Yu JY, Kwon YS, Park HG, Son M, Jun JH, Kim JA, Kim JO. The Pharmacological Effects of Benachio-F(®) on Rat Gastrointestinal Functions. Biomol Ther (Seoul) 2015; 23:350-6. [PMID: 26157552 PMCID: PMC4489830 DOI: 10.4062/biomolther.2015.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/21/2015] [Accepted: 06/02/2015] [Indexed: 12/12/2022] Open
Abstract
Functional dyspepsia (FD) is a prevalent idiopathic upper gastrointestinal (GI) disorder characterized by diverse symptomatology including epigastric pain or discomfort, postprandial fullness, and early satiety. Although its pathophysiological mechanisms have not yet been fully established, the available studies suggest that the etiology of FD is invariably multifactorial. Benachio-F® (BF) is a proprietary liquid formulation of 7 herbal extracts that has been proposed to address this multifactorial etiology using multi-drug phytotherapy. The pharmacological effects of BF, in comparison with those of two other herbal products (Whalmyungsu®; WM and Iberogast®; IB) were evaluated in rats. In a laparotomy-induced rat model of delayed GI transit, BF significantly accelerated the delayed gastric emptying caused by morphine, apomorphine, and cisplatin, and also significantly increased mean gastric transit, as compared to the control animals. BF markedly increased gastric accommodation in rats and produced higher gastric volume values than did the control treatment. The effects of BF were generally comparable or superior to those of WM and IB in these models. Furthermore, BF significantly stimulated biliary flow, as compared to the control treatment. These results indicated that BF might have great potential as an effective phytotherapeutic agent capable of reducing GI symptoms and increasing quality of life in FD patients.
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Affiliation(s)
| | | | | | | | - Miwon Son
- Dong-A Pharmaceutical Co. Ltd., Yongin 449-905
| | - Joon Ho Jun
- Dong-A Pharmaceutical Co. Ltd., Yongin 449-905
| | - Jeong Ah Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749
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Pradhan R, Ramasamy T, Choi JY, Kim JH, Poudel BK, Tak JW, Nukolova N, Choi HG, Yong CS, Kim JO. Hyaluronic acid-decorated poly(lactic-co-glycolic acid) nanoparticles for combined delivery of docetaxel and tanespimycin. Carbohydr Polym 2015; 123:313-23. [DOI: 10.1016/j.carbpol.2015.01.064] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 01/27/2015] [Accepted: 01/28/2015] [Indexed: 11/28/2022]
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Gupta B, Poudel BK, Tran TH, Pradhan R, Cho HJ, Jeong JH, Shin BS, Choi HG, Yong CS, Kim JO. Modulation of Pharmacokinetic and Cytotoxicity Profile of Imatinib Base by Employing Optimized Nanostructured Lipid Carriers. Pharm Res 2015; 32:2912-27. [PMID: 25939551 DOI: 10.1007/s11095-015-1673-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 03/09/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE To prepare, optimize and characterize imatinib-loaded nanostructured lipid carriers (IMT-NLC), and evaluate their pharmacokinetic and cytotoxicity characteristics. METHODS IMT-NLC was prepared by hot homogenization method, and optimized by an approach involving Plackett-Burman design (PBD) and central composite design (CCD). An in vivo pharmacokinetic study was conducted in rats after both oral and intravenous administration. The in vitro cytotoxicity was evaluated by MTT assay on NCI-H727 cell-lines. RESULTS PBD screening, followed by optimization by CCD and desirability function, yielded an optimized condition of 0.054, 6% w/w, 2.5% w/w and 1.25% w/v for organic-to-aqueous phase ratio (O/A), drug-to-lipid ratio (D/L), amount of lecithin (Lec) and amount of Tween® 20 (Tw20) respectively. The optimized IMT-NLC exhibited a particle size (Sz) of 148.80 ± 1.37 nm, polydispersity index (PDI) 0.191 ± 0.017 of and ζ-potential of -23.0 ± 1.5 mV, with a drug loading (DL) of 5.48 ± 0.01% and encapsulation efficiency (EE) of 97.93 ± 0.03%. IMT-NLC displayed sustained IMT release in vitro, significantly enhanced in vivo bioavailability of IMT after intravenous and oral administration, and greater in vitro cytotoxicity on NCI-H727 cells, compared with free IMT. CONCLUSION A combined DoE approach enabled accurate optimization and successful preparation of IMT-NLC with enhanced in vivo pharmacokinetic and in vitro cytotoxicity characteristics.
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Affiliation(s)
- Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan, 712-749, South Korea
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Kim YI, Poudel BK, Pradhan R, Choi HG, Yong CS, Woo JS, Kim JO. Development of a novel bi-coated combination capsule containing mosapride and probiotics for irritable bowel syndrome. Pharm Dev Technol 2014; 20:949-956. [DOI: 10.3109/10837450.2014.954723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Tran TH, Ramasamy T, Cho HJ, Kim YI, Poudel BK, Choi HG, Yong CS, Kim JO. Formulation and optimization of raloxifene-loaded solid lipid nanoparticles to enhance oral bioavailability. J Nanosci Nanotechnol 2014; 14:4820-4831. [PMID: 24757949 DOI: 10.1166/jnn.2014.8722] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The main aim of this study was to improve the oral bioavailability of raloxifene (RXF), a selective estrogen receptor modulator, by incorporation into solid lipid nanoparticles (SLN). RXF-loaded SLN was prepared by homogenization-sonication technique and characterized through physicochemical, pharmacokinetic, and cytotoxicity studies. The optimized SLN formulation exhibited a spherical shape with average size around 140 nm, easing its transport across the lymphatic system. Augmentation in the profiles of C(max) (308%) and AUC (270%) indicated a significant enhancement in the rate and extent of bioavailability by SLN formulations compared to free drug. In vitro cytotoxicity study performed in NIH-3T3 cells revealed that RXF-SLN was cytocompatible, and SLN remained unchanged during the freeze-drying process. Furthermore, the optimized formulation was quite stable at room temperature for more than two months, exemplifying its superior performance. In conclusion, SLN provides a promising platform for the pronounced enhancement of RXF bioavailability.
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Hwang DH, Kim YI, Cho KH, Poudel BK, Choi JY, Kim DW, Shin YJ, Bae ON, Yousaf AM, Yong CS, Kim JO, Choi HG. A novel solid dispersion system for natural product-loaded medicine: silymarin-loaded solid dispersion with enhanced oral bioavailability and hepatoprotective activity. J Microencapsul 2014; 31:619-26. [DOI: 10.3109/02652048.2014.911375] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Tran TH, Ramasamy T, Poudel BK, Marasini N, Moon BK, Cho HJ, Choi HG, Yong CS, Kim JO. Preparation and characterization of spray-dried gelatin microspheres encapsulating ganciclovir. Macromol Res 2013. [DOI: 10.1007/s13233-014-2018-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pradhan R, Poudel BK, Ramasamy T, Choi HG, Yong CS, Kim JO. Docetaxel-loaded polylactic acid-co-glycolic acid nanoparticles: formulation, physicochemical characterization and cytotoxicity studies. J Nanosci Nanotechnol 2013; 13:5948-56. [PMID: 23882865 DOI: 10.1166/jnn.2013.7735] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In the present study, we developed novel docetaxel (DTX)-loaded polylactic acid-co-glycolic acid (PLGA) nanoparticles (NPs) using the combination of sodium lauryl sulfate (SLS) and poloxamer 407, the anionic and non-ionic surfactants respectively for stabilization. The NPs were prepared by emulsification/solvent evaporation method. The combination of these surfactants at weight ratio of 1:0.5 was able to produce uniformly distributed small sized NPs and demonstrated the better stability of NP dispersion with high encapsulation efficiency (85.9 +/- 0.6%). The drug/polymer ratio and phase ratio were 2:10 and 1:10, respectively. The optimized formulation of DTX-loaded PLGA NPs had a particle size and polydispersity index of 104.2 +/- 1.5 nm and 0.152 +/- 0.006, respectively, which was further supported by TEM image. In vitro release study was carried out with dialysis membrane and showed 32% drug release in 192 h. When in vitro release data were fitted to Korsmeyer-Peppas model, the n value was 0.481, which suggested the drug was released by anomalous or non-Fickian diffusion. In addition, DTX-loaded PLGA NPs in 72 h, displayed approximately 75% cell viability reduction at 10 microg/ml DTX concentration, in MCF-7 cell lines, indicating sustained release from NPs. Therefore, our results demonstrated that incorporation of DTX into PLGA NPs could provide a novel effective nanocarrier for the treatment of cancer.
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Affiliation(s)
- Roshan Pradhan
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
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Cho HJ, Lee DW, Marasini N, Poudel BK, Kim JH, Ramasamy T, Yoo BK, Choi HG, Yong CS, Kim JO. Optimization of self-microemulsifying drug delivery system for telmisartan using Box–Behnken design and desirability function. J Pharm Pharmacol 2013; 65:1440-50. [DOI: 10.1111/jphp.12115] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 06/15/2013] [Indexed: 10/26/2022]
Abstract
Abstract
Objectives
To develop and optimize the novel self-microemulsifying drug delivery system (SMEDDS) formulation for enhanced water solubility and bioavailability of telmisartan (TMS) using the Box–Behnken design (BBD) and desirability function.
Method
TMS-SMEDDS formulation consisted of the mixture of oil (Peceol), surfactant (Labrasol), co-surfactant (Transcutol), TMS and triethanolamine. A three-level BBD was applied to explore the main effect, interaction effect and quadratic effect of three independent variables, including the amount of Peceol (X1), Labrasol (X2) and Transcutol (X3). Determined conditions were 20 < X1 < 40, 50 < X2 < 80 and 5 < X3 < 30. The response variables were droplet size (Y1), polydispersity index (Y2) and dissolution percentage of TMS after 15 min (Y3).
Key findings
The optimized conditions were 28.93, 80 and 28.08 (mg) for X1, X2 and X3, respectively, and the response variables were predicted to be 159.8 nm, 0.241 and 85.8% for Y1, Y2 and Y3, respectively. The actual values from the optimized formulation showed good agreement with predicted values. The optimized TMS-SMEDDS formulation showed faster drug dissolution rate and higher bioavailability than TMS powder.
Conclusions
Our results suggest that response surface methodology using BBD and desirability function is a promising approach to understand the effect of SMEDDS variables and to optimize the formulation.
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Affiliation(s)
- Hyuk Jun Cho
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
| | - Dong Won Lee
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
| | - Nirmal Marasini
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
| | | | - Jeong Hwan Kim
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
| | | | - Bong Kyu Yoo
- College of Pharmacy, Gachon University, Incheon, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Ansan, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyungbuk, South Korea
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Lee DW, Marasini N, Poudel BK, Kim JH, Cho HJ, Moon BK, Choi HG, Yong CS, Kim JO. Application of Box–Behnken design in the preparation and optimization of fenofibrate-loaded self-microemulsifying drug delivery system (SMEDDS). J Microencapsul 2013; 31:31-40. [DOI: 10.3109/02652048.2013.805837] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Lee SN, Poudel BK, Tran TH, Marasini N, Pradhan R, Lee YI, Lee DW, Woo JS, Choi HG, Yong CS, Kim JO. A novel surface-attached carvedilol solid dispersion with enhanced solubility and dissolution. Arch Pharm Res 2013; 36:79-85. [DOI: 10.1007/s12272-013-0008-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Marasini N, Tran TH, Poudel BK, Choi HG, Yong CS, Kim JO. Statistical modeling, optimization and characterization of spray-dried solid self-microemulsifying drug delivery system using design of experiments. Chem Pharm Bull (Tokyo) 2013; 61:184-93. [DOI: 10.1248/cpb.c12-00823] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Marasini N, Yan YD, Poudel BK, Choi H, Yong CS, Kim JO. Development and Optimization of Self‐Nanoemulsifying Drug Delivery System with Enhanced Bioavailability by Box–Behnken Design and Desirability Function. J Pharm Sci 2012; 101:4584-96. [DOI: 10.1002/jps.23333] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 08/20/2012] [Accepted: 09/11/2012] [Indexed: 11/09/2022]
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Marasini N, Tran TH, Poudel BK, Cho HJ, Choi YK, Chi SC, Choi HG, Yong CS, Kim JO. Fabrication and evaluation of pH-modulated solid dispersion for telmisartan by spray-drying technique. Int J Pharm 2012; 441:424-32. [PMID: 23174408 DOI: 10.1016/j.ijpharm.2012.11.012] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 10/06/2012] [Accepted: 11/09/2012] [Indexed: 01/10/2023]
Abstract
The present study was undertaken to overcome the problems associated with solubility, dissolution and oral bioavailability of a poorly water-soluble ionizable drug, telmisartan (TMS). For these purposes, a solubility test was carried to select the appropriate formulation composition from various carriers and alkalizers. Solid dispersions (SDs) of TMS were prepared at different drug-to-carrier ratios by the spray-drying technique, and were characterized by dissolution and aqueous solubility studies. The optimum formulation was investigated by dissolution studies at different pH and water media and its solid state characterisations were performed by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD) studies. In solubility and dissolution tests, all TMS-loaded pH-modulated SDs (pH(M)-SDs) exhibited marked improvement in the dissolution behavior when compared with crystalline TMS powder. The optimum formulation of pH(M)-SD consisted of TMS/PVP (polyvinylpyrrolidone) K30/Na(2)CO(3) at a weight ratio of 2/0.5/3 and showed significant improvement in the aqueous solubility and dissolution rate by approximately 40,000- and 3-fold, respectively, compared to TMS powder. Solid-state characterization revealed the changed in crystallinity of TMS into amorphous state. Furthermore, area under the drug concentration time-curve (AUC) of TMS from the pH(M)-SD increased by 13.4- and 2.1-fold, compared with TMS powder and commercial product, respectively. According to these observations, taken together with dissolution and pharmacokinetic behaviors, pH-modulated SD in the presence of an alkalizer for a poorly water-soluble ionizable drug, TMS, appeared to be efficacious for enhancing its bioavailability.
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Affiliation(s)
- Nirmal Marasini
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyungsan, Gyungbuk 712-749, South Korea
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Poudel BK, Marasini N, Tran TH, Choi HG, Yong CS, Kim JO. Formulation, Characterization and Optimization of Valsartan Self-Microemulsifying Drug Delivery System Using Statistical Design of Experiment. Chem Pharm Bull (Tokyo) 2012; 60:1409-18. [DOI: 10.1248/cpb.c12-00502] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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