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Yang S, Lin HS, Zhang L, Chi-Lui Ho P. Formulating 10-hydroxycamptothecin into nanoemulsion with functional excipient tributyrin: An innovative strategy for targeted hepatic cancer chemotherapy. Int J Pharm 2024; 654:123945. [PMID: 38403088 DOI: 10.1016/j.ijpharm.2024.123945] [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] [Received: 11/03/2023] [Revised: 02/10/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
This study aimed to develop an innovative dosage form for 10-hydroxycamptothecin (HCPT), a chemotherapeutic agent with limited aqueous solubility and stability, to enhance its parenteral delivery and targeting to hepatic cancer. We formulated HCPT into a nanoemulsion using tributyrin, a dietary component with histone deacetylase inhibitor activity. The resulting HCPT-loaded tributyrin nanoemulsion (Tri-HCPT-E) underwent extensive evaluations. Tri-HCPT-E significantly improved the aqueous solubility, stability, and anti-cancer activities in HepG2 cells. Pharmacokinetic studies confirmed the increased stability and hepatic targeting, with Tri-HCPT-E leading to a 120-fold increase in plasma exposure of intact HCPT and a 10-fold increase in hepatic exposure compared to the commercial free solution. Co-administration of 17α-ethynylestradiol, an up-regulator of low-density lipoprotein (LDL) receptor, further enhanced the distribution and metabolism of HCPT, demonstrating an association between the LDL receptor pathway and hepatic targeting. Most importantly, Tri-HCPT-E exhibited superior in vivo anti-cancer efficacy in a mouse xenograft model compared to the commercial formulation, without causing escalated hepatic or renal toxicity. In conclusion, formulating HCPT into a nanoemulsion with tributyrin has proven to be an innovative and effective strategy for targeted hepatic cancer chemotherapy while tributyrin, a pharmacologically active dietary component, has emerged as a promising functional excipient for drug delivery.
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Affiliation(s)
- Shili Yang
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Hai-Shu Lin
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore; College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China.
| | - Li Zhang
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Paul Chi-Lui Ho
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore; School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Malaysia.
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Yadav KS, Srivastava N, Rai VK, Ranjana, Tandon S, Mina PR, Chanda D, Kalleti N, Rath SK, Darokar MP, Ajayakumar PV, Shanker K, Yadav NP. Cliv-92-Loaded Glycyrrhetinic Acid-Modified Chitosan Nanoparticles for Enhanced Hepatoprotection-Preparation, Characterization, and In Vivo Evaluation. AAPS PharmSciTech 2021; 22:259. [PMID: 34704177 DOI: 10.1208/s12249-021-02130-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 08/30/2021] [Indexed: 11/30/2022] Open
Abstract
Cliv-92 is a mixture of three structurally similar coumarinolignoids and a proven hepatoprotective agent. Low aqueous solubility and poor bioavailability are notable hindrances for its further use. Therefore, glycyrrhetinic acid-linked chitosan nanoparticles loaded with Cliv-92 were prepared for active targeting to the liver. The nanoparticles were prepared by the ionic gelation method to avoid the use of toxic solvents/rigorous agitation. The method of preparation was optimized using a central composite design with independent variables, namely polymer: drug ratio (3:1, w/w), crosslinker concentration (0.5%), and stirring speed (750 rpm). The optimized nanoparticles had a mean particle size of 185.17 nm, a polydispersity index of 0.41, a zeta potential of 30.93 mV, and a drug loading of 16.30%. The prepared formulation showed sustained release of approximately 63% of loaded Cliv-92 over 72 h. The nanoparticles were freeze-dried for long-term storage and further characterized. The formulation was found to be biocompatible for parenteral delivery. In vivo imaging study showed that optimized nanoparticles were preferentially accumulated in the liver and successfully targeting the liver. The present study successfully demonstrated the improved pharmacokinetic properties (≈12% relative bioavailability) and efficacy profile (evidenced by in vivo and histopathological studies) of fabricated Cliv-92 nanoparticles.
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Jin X, Asghar S, Zhu X, Chen Z, Liu J, Li Y, Li H, Ping Q, Xiao Y. Enhanced oral bioavailability of 10-hydroxycamptothecin through the use of poly (n-butyl cyanoacrylate) nanospheres. Drug Dev Ind Pharm 2017; 43:1637-1647. [DOI: 10.1080/03639045.2017.1328432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Xin Jin
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
| | - Sajid Asghar
- Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Xieting Zhu
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
| | - Zhipeng Chen
- Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Junhong Liu
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
| | - Yibo Li
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
| | - Hongying Li
- Affiliated Hospital of Weifang Medical University, Weifang, PR China
| | - Qineng Ping
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
| | - Yanyu Xiao
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, PR China
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Yang L, Hong J, Di J, Guo Y, Han M, Liu M, Wang X. 10-Hydroxycamptothecin (HCPT) nanosuspensions stabilized by mPEG 1000-HCPT conjugate: high stabilizing efficiency and improved antitumor efficacy. Int J Nanomedicine 2017; 12:3681-3695. [PMID: 28553107 PMCID: PMC5439984 DOI: 10.2147/ijn.s134005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In this study, polyethylene glycol (PEG)ylated 10-hydroxycamptothecin (mPEG1000-HCPT) was synthesized and used as a stabilizer to prepare 10-hydroxycamptothecin (HCPT) nanosuspensions for their in vitro and in vivo antitumor investigation. The resultant HCPT nanosuspensions (HCPT-NSps) had a very high drug payload of 94.90% (w/w) and a mean particle size of 92.90±0.20 nm with narrow size distribution (polydispersity index of 0.16±0.01). HCPT-NSps could be lyophilized without the need of the addition of any cryoprotectant and then be reconstituted into nanosuspensions of a similar size by direct resuspension in water. HCPT was in crystalline form in HCPT-NSps. Using mPEG1000-HCPT as stabilizer, insoluble camptothecin and 7-ethyl-10-hydroxycamptothecin could also be easily made into nanosuspensions with similar features such as high drug payload, small particle size, and cryoprotectant-free freeze drying. The 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide assay indicated that the HCPT-NSps had a significantly higher cytotoxicity than HCPT injections, with 3.77 times lower IC50 value against HepG2 cells and 14.1 times lower IC50 value against MCF-7 cells. An in vivo study in H22 tumor-bearing mice after intravenous injection of HCPT-NSps demonstrated that HCPT-NSps significantly improved the antitumor efficacy compared to the commercially available HCPT injections (86.38% vs 34.97%) at the same dose of 5 mg/kg. Even at 1/4 of the dose, HCPT-NSps could also achieve a similar antitumor efficacy to that of HCPT injections. mPEG1000-HCPT may be a highly efficient stabilizer able to provide camptothecin-based drugs, and probably other antitumor agents containing aromatic structure, with unique nanosuspensions or nanocrystals for improved in vivo therapeutic efficacy.
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Affiliation(s)
- Linjie Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Jingyi Hong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Jing Di
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yifei Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Meihua Han
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Meifeng Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiangtao Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
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Yang X, Liu Y, Zhao Y, Han M, Guo Y, Kuang H, Wang X. A stabilizer-free and organic solvent-free method to prepare 10-hydroxycamptothecin nanocrystals: in vitro and in vivo evaluation. Int J Nanomedicine 2016; 11:2979-94. [PMID: 27382284 PMCID: PMC4922823 DOI: 10.2147/ijn.s102726] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
10-Hydroxycamptothecin (10-HCPT) is a promising anticancer drug with a wide spectrum of antitumor activities. Due to its poor solubility, the carboxylate form that shows high water solubility but minimal anticancer activity and pharmacokinetic defects is used in the marketed 10-HCPT injections, resulting in its limited clinical application. To develop a simple, safe, and highly effective drug delivery system, a modified acid–base microprecipitation combined with a high-pressure homogenization technique was adopted to prepare 10-HCPT nanocrystals. Neither organic solvents nor stabilizers were employed throughout the preparation process. The in vitro and in vivo performances of the resulting10-HCPT nanocrystals were investigated systematically. The nanocrystals were spherical with a small size of ~130 nm, and the actual drug-loading content was as high as 75%. The nanocrystals displayed a sustained release pattern and were proven to have a higher cell uptake and antiproliferative activity than the 10-HCPT injections. The 10-HCPT nanocrystals also showed enhanced drug accumulation in tumors and better anticancer efficacy in 4T1-bearing mice. In summary, the 10-HCPT nanocrystals prepared in this study seem to be a promising delivery system for a new form of 10-HCPT dosages.
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Affiliation(s)
- Xiaofeng Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yingying Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing; School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, People's Republic of China
| | - Yanna Zhao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Meihua Han
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yifei Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Haixue Kuang
- School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, People's Republic of China
| | - Xiangtao Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
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Qin L, Mei L, Shan Z, Huang Y, Pan X, Li G, Gu Y, Wu C. Phytantriol based liquid crystal provide sustained release of anticancer drug as a novel embolic agent. Drug Dev Ind Pharm 2015; 42:307-16. [PMID: 26035332 DOI: 10.3109/03639045.2015.1052079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Phytantriol has received increasing amount of attention in drug delivery system, however, the ability of the phytantriol based liquid crystal as a novel embolic agent to provide a sustained release delivery system is yet to be comprehensively demonstrated. The purpose of this study was to prepare a phytantriol-based cubic phase precursor solution loaded with anticancer drug hydroxycamptothecine (HCPT) and evaluate its embolization properties, in vitro drug release and cytotoxicity. Phase behavior of the phytantriol-solvent-water system was investigated by visual inspection and polarized light microscopy, and no phase transition was observed in the presence of HCPT within the studied dose range. Water uptake by the phytantriol matrices was determined gravimetrically, suggesting that the swelling complied with the second order kinetics. In vitro evaluation of embolic efficacy indicated that the isotropic solution displayed a satisfactory embolization effect. In vitro drug release results showed a sustained-release up to 30 days and the release behavior was affected by the initial composition and drug loading. Moreover, the in vitro cytotoxicity and anticancer activity were evaluated by MTT assay. No appreciable mortality was observed for NIH 3T3 cells after 48 h exposure to blank formulations, and the anticancer activity of HCPT-loaded formulations to HepG2 and SMMC7721 cells was strongly dependent on the drug loading and treatment time. Taken together, these results indicate that phytantriol-based cubic phase embolic gelling solution is a promising potential carrier for HCPT delivery to achieve a sustained drug release by vascular embolization, and this technology may be potential for clinical applications.
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Affiliation(s)
- Lingzhen Qin
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China .,b GuangDong Research Center for Drug Delivery Systems , Guangzhou , China , and
| | - Liling Mei
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China
| | - Ziyun Shan
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China
| | - Ying Huang
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China
| | - Xin Pan
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China
| | - Ge Li
- c Guangzhou Neworld Pharm. Co. Ltd. , Guangzhou , China
| | - Yukun Gu
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China
| | - Chuanbin Wu
- a School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou , China .,b GuangDong Research Center for Drug Delivery Systems , Guangzhou , China , and
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