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Huang J, Tang X, Yang Z, Chen J, Wang K, Shi C, Liu Z, Wu M, Du Q. Enhancing oral delivery and anticancer efficacy of 7-ethyl-10-hydroxycamptothecin through self-assembled micelles of deoxycholic acid grafted N'-nonyl-trimethyl chitosan. Colloids Surf B Biointerfaces 2024; 234:113736. [PMID: 38215603 DOI: 10.1016/j.colsurfb.2023.113736] [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: 10/28/2023] [Revised: 12/24/2023] [Accepted: 12/27/2023] [Indexed: 01/14/2024]
Abstract
Irinotecan (CPT-11) is used as a first or second-line chemotherapy drug for the treatment and management of colorectal cancers. In vitro studies have shown that 7-ethyl-10-hydroxycamptothecin (SN38), the active metabolite of CPT-11, displays promising anticancer efficacy. However, its poor aqueous solubility and hydrolytic degradation result in its lower oral bioavailability and impracticable clinical application. To overcome these limitations, a novel amphiphilic chitosan derivative, deoxycholic acid decorated N'-nonyl-trimethyl chitosan, was synthesized. Nano-micelles loaded with SN38 were subsequently prepared to enhance the bioavailability and anti-tumor efficacy of the drug through oral administration. The nano-micelles demonstrated improved dilution stability, enhanced greater mucosal adherence, significant P-gp efflux inhibition, and increased drug transport in the intestine by paracellular and transcellular pathways. Consequently, both the in vivo pharmacokinetic profile and therapeutic efficacy of SN38 against cancer were substantially improved via the micellar system. Thus, the developed polymeric micelles can potentially enhance the SN38 oral absorption for cancer therapy, offering prospective avenues for further exploration.
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Affiliation(s)
- Jie Huang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xiao Tang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Ziqiong Yang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jianqiu Chen
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Kun Wang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Chengnan Shi
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Zihan Liu
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Ming Wu
- Institute of Pediatrics, Xuzhou Medical University, Xuzhou, China
| | - Qian Du
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
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Zhang R, Xu J, Deng J, Ouyang W, Chen H, Tang Q, Zheng S, Liu L. High-performance cation electrokinetic concentrator based on a γ-CD/QCS/PVA composite and microchip for evaluating the activity of P-glycoprotein without any interference from serum albumin. LAB ON A CHIP 2023; 24:127-136. [PMID: 38073277 DOI: 10.1039/d3lc00831b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The development of cation electrokinetic concentrators (CECs) has been hindered by the lack of commercial anion-exchange membranes (AEMs). This paper introduces a γ-cyclodextrin-modified quaternized chitosan/polyvinyl alcohol (γ-CD/QCS/PVA) composite as an AEM, which is combined with a microchip to fabricate a CEC. Remarkably, the CEC only concentrates cationic species, thereby overcoming the interference of the highly abundant, negatively charged serum albumin in the blood sample. P-Glycoprotein (P-gp) is recognized as an efflux transporter protein that influences the pharmacokinetics (PK) of various compounds. The CEC was used to evaluate the activity of P-gp by detecting the positively charged rhodamine 123 (Rho123 is a classical substrate of P-gp) with no interference from serum albumin in the serum sample. Using the CEC, the enrichment factor (EF) of Rho123 exceeded 105-fold under DC voltage application. The minimal sample consumption of the CEC (<10 μL) enables reduction of animal sacrifice in animal experiments. Here, the CEC has been applied to evaluate the transport activity of P-gp in in vitro and in vivo experiments by detecting Rho123 in the presence of P-gp inhibitors or agonists. The results are in good agreement with those reported in previous reports. Therefore, the CEC presents a promising application potential, owing to its simple fabrication process, high sensitivity, minimal sample consumption, lack of interference from serum albumin and low cost.
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Affiliation(s)
- Runhui Zhang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Jun Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Jieqi Deng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Wei Ouyang
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
| | - Hanren Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Qing Tang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Shiquan Zheng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Lihong Liu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Husain A, Makadia V, Valicherla GR, Riyazuddin M, Gayen JR. Approaches to minimize the effects of P-glycoprotein in drug transport: A review. Drug Dev Res 2022; 83:825-841. [PMID: 35103340 DOI: 10.1002/ddr.21918] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/21/2021] [Accepted: 01/13/2022] [Indexed: 12/20/2022]
Abstract
P-glycoprotein (P-gp) is a transporter protein that is come under the ATP binding cassette family of proteins. It is situated on the surface of the intestine epithelium, where P-gp substrate binds to the transporter and is pumped into the intestine lumen by the ATP-driven energy-dependent process. In this review, we summarize the role of the P-gp efflux transporter situated on the intestine, the clinical importance of P-gp related drug interactions, and approaches to minimize the effect of P-gp in drug transport. This review also focuses on the impact of P-gp on the bioavailability of the orally administered drug. Many drug's oral bioavailabilities can improve by concomitant use of P-gp inhibitors. Multidrug resistance are reduced by using some naturally occurring compounds obtained from plants and several synthetic P-gp inhibitors. Formulation strategies, one of the most important approaches to mimic the P-gp transporter's action, finally enhancing the oral bioavailability of the drug by inhibiting its P-gp efflux. Vitamin E TPGS, Gelucire 44/14 and other pharmaceutical/formulation excipients inhibit the P-gp efflux. A prodrug approach might be a useful strategy to overcome drug resistance. Prodrug helps to enhance the solubility or alter the pharmacokinetic properties but does not diminish the pharmacological action.
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Affiliation(s)
- Athar Husain
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vishal Makadia
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Raibarelly, India
| | - Guru R Valicherla
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mohammed Riyazuddin
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Wang LL, Yang HW, Zhu FD, Chi SM, Zhang J, Yang JM, Zhao Y. Host-guest inclusion systems of two bioactive natural products derivantives and three polyamine-modified β-cyclodextrins: Preparation, characterization, biological activity. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Shang H, Wang Z, Ma H, Sun Y, Ci X, Gu Y, Liu C, Si D. Influence of verapamil on the pharmacokinetics of rotundic acid in rats and its potential mechanism. PHARMACEUTICAL BIOLOGY 2021; 59:200-208. [PMID: 33595422 PMCID: PMC7894426 DOI: 10.1080/13880209.2021.1871634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
CONTEXT Rotundic acid (RA), a plant-derived pentacyclic triterpene acid, has been reported to possess extensive pharmacological activities. The poor bioavailability limits its further development and potential clinic application. OBJECTIVE To clarify the potential mechanism for poor oral bioavailability. MATERIALS AND METHODS The single-dose pharmacokinetics of orally administered RA (10 mg/kg) in Sprague-Dawley rats without or with verapamil (25 or 50 mg/kg) were investigated. Additionally, MDCKII-MDR1 and Caco-2 cell monolayers, five recombinant human cytochrome P450 (rhCYP) enzymes (1A2, 2C8, 2C9, 2D6 and 3A4), and rat liver microsomes were also conducted to investigate its potential mechanism. RESULTS Verapamil could significantly affect the plasma concentration of RA. Co-administered verapamil at 25 and 50 mg/kg, the AUC0-∞ increased from 432 ± 64.2 to 539 ± 53.6 and 836 ± 116 ng × h/mL, respectively, and the oral clearance decreased from 23.6 ± 3.50 to 18.7 ± 1.85 and 12.2 ± 1.85 L/h/kg, respectively. The MDCKII-MDR1 cell assay showed that RA might be a P-gp substrate. The rhCYPs experiments indicated that RA was mainly metabolized by CYP3A4. Additionally, verapamil could increase the absorption of RA by inhibiting the activity of P-gp, and slow down the intrinsic clearance of RA from 48.5 ± 3.18 to 12.0 ± 1.06 µL/min/mg protein. DISCUSSION AND CONCLUSIONS These findings indicated that verapamil could significantly affect the pharmacokinetic profiles of RA in rats. It was demonstrated that P-gp and CYP3A were involved in the transport and metabolism of RA, which might contribute to the low oral bioavailability of RA.
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Affiliation(s)
- Haihua Shang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
| | - Ze Wang
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Ma
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
| | - Yinghui Sun
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
| | - Xiaoyan Ci
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
| | - Yuan Gu
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
- Research Unit for Drug Metabolism, Chinese Academy of Medical Sciences, Tianjin, China
| | - Changxiao Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
- CONTACT Changxiao Liu School of Pharmacy, Shenyang Pharmaceutical University, 103, Wenhua Road, Shenhe District, Shenyang110016, China
| | - Duanyun Si
- State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
- Research Unit for Drug Metabolism, Chinese Academy of Medical Sciences, Tianjin, China
- Duanyun Si State Key Laboratory of Drug Delivery and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, No. 308, Huiren Road, Binhai Hi-tech Industrial Development Park, Tianjin300301, China
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Peng L, Du J, Zhang R, Zhu N, Zhao H, Zhao Q, Yu Q, Li M. The Transient Receptor Potential Channel Yvc1 Deletion Recovers the Growth Defect of Calcineurin Mutant Under Endoplasmic Reticulum Stress in Candida albicans. Front Microbiol 2021; 12:752670. [PMID: 34917046 PMCID: PMC8669648 DOI: 10.3389/fmicb.2021.752670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/07/2021] [Indexed: 11/24/2022] Open
Abstract
Transient receptor potential (TRP) channel Yvc1 was related with hyphal growth, oxidative stress response, and pathogenicity. Calcineurin subunit Cnb1 was activated immediately in yeasts when exposed to severe stimulation. However, the relationship between Yvc1 and Cnb1-governed calcium ions and endoplasmic reticulum (ER) stress response remains unrevealed. In this study, we found that the mutant cnb1Δ/Δ was sensitive to TN, which was related with the overexpression of membrane calcium ion channels that could increase the cytosol calcium concentration. However, the growth of the cnb1Δ/Δyvc1Δ/Δ mutant was recovered and its cell vitality was better than the cnb1Δ/Δ strain. Meanwhile, the cellular calcium concentration was decreased and its fluctuation was weakened under ER stress in the cnb1Δ/Δyvc1Δ/Δ strain. To verify the regulation role of Yvc1 in the calcium concentration, we found that the addition of CaCl2 led to the worse viability, while the growth state was relieved under the treatment of EGTA in the cnb1Δ/Δ strain. In conclusion, the deletion of YVC1 could reduce the cellular calcium and relieve the ER stress sensitivity of the cnb1Δ/Δ strain. Thereby, our findings shed a novel light on the relationship between the Yvc1-governed cellular calcium concentration and ER stress response in C. albicans.
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Affiliation(s)
| | | | | | | | | | | | - Qilin Yu
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Mingchun Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
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7
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Liu N, Chen P, Du X, Sun J, Han S. In vitro inhibitory effect of obtusofolin on the activity of CYP3A4, 2C9, and 2E1. BMC Complement Med Ther 2021; 21:218. [PMID: 34470620 PMCID: PMC8411522 DOI: 10.1186/s12906-021-03397-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/17/2021] [Indexed: 11/22/2022] Open
Abstract
Background Obtusofolin is the major active ingredient of Catsia tora L., which possesses the activity of improving eyesight and protecting the optic nerve. Investigation on the interaction of obtusofolin with cytochrome P450 enzymes (CYP450s) could provide a reference for the clinical application of obtusofolin. Methods The effect of obtusofolin on the activity of CYP450s was investigated in the presence of 100 μM obtusofolin in pooled human liver microsomes (HLMs) and fitted with the Lineweaver–Burk plots to characterize the specific inhibition model and kinetic parameters. Results Obtusofolin was found to significantly inhibited the activity of CYP3A4, 2C9, and 2E1. In the presence of 0, 2.5, 5, 10, 25, 50, and 100 μM obtusofolin, the inhibition of these CYP450s showed a dose-dependent manner with the IC50 values of 17.1 ± 0.25, 10.8 ± 0.13, and 15.5 ± 0.16 μM, respectively. The inhibition of CYP3A4 was best fitted with the non-competitive inhibition model with the Ki value of 8.82 μM. While the inhibition of CYP2C9 and 2E1 was competitive with the Ki values of 5.54 and 7.79 μM, respectively. After incubating for 0, 5, 10, 15, and 30 min, the inhibition of CYP3A4 was revealed to be time-dependent with the KI value of 4.87 μM− 1 and the Kinact value of 0.0515 min− 1. Conclusions The in vitro inhibitory effect of obtusofolin implying the potential drug-drug interaction between obtusofolin and corresponding substrates, which needs further in vivo validations.
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Affiliation(s)
- Na Liu
- Department of Ophthalmology, Dongying People's Hospital, No. 317, Nanyi Road, Dongcheng, Dongying, 257091, Shandong Province, China
| | - Ping Chen
- Department of Ophthalmology, Dongying People's Hospital, No. 317, Nanyi Road, Dongcheng, Dongying, 257091, Shandong Province, China
| | - Xiaojun Du
- Department of Ophthalmology, Shengli Oilfield Central Hospital, Dongying, 257034, Shandong, China
| | - Junxia Sun
- Department of Ophthalmology, Dongying People's Hospital, No. 317, Nanyi Road, Dongcheng, Dongying, 257091, Shandong Province, China
| | - Shasha Han
- Department of Ophthalmology, Dongying People's Hospital, No. 317, Nanyi Road, Dongcheng, Dongying, 257091, Shandong Province, China.
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8
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He X, Sun H, Jiang Q, Chai Y, Li X, Wang Z, Zhu B, You S, Li B, Hao J, Xin S. Hsa-miR-4277 Decelerates the Metabolism or Clearance of Sorafenib in HCC Cells and Enhances the Sensitivity of HCC Cells to Sorafenib by Targeting cyp3a4. Front Oncol 2021; 11:735447. [PMID: 34381736 PMCID: PMC8350395 DOI: 10.3389/fonc.2021.735447] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/12/2021] [Indexed: 12/18/2022] Open
Abstract
Increasing evidence has shown that the metabolism and clearance of molecular targeted agents, such as sorafenib, plays an important role in mediating the resistance of HCC cells to these agents. Metabolism of sorafenib is performed by oxidative metabolism, which is initially mediated by CYP3A4. Thus, targeting CYP3A4 is a promising approach to enhance the sensitivity of HCC cells to chemotherapeutic agents. In the present work, we examined the association between CYP3A4 and the prognosis of HCC patients receiving sorafenib. Using the online tool miRDB, we predicted that has-microRNA-4277 (miR-4277), an online miRNA targets the 3’UTR of the transcript of cyp3a4. Furthermore, overexpression of miR-4277 in HCC cells repressed the expression of CYP3A4 and reduced the elimination of sorafenib in HCC cells. Moreover, miR-4277 enhanced the sensitivity of HCC cells to sorafenib in vitro and in vivo. Therefore, our results not only expand our understanding of CYP3A4 regulation in HCC, but also provide evidence for the use of miR-4277 as a potential therapeutic in advanced HCC.
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Affiliation(s)
- Xi He
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Department of Liver Disease of Chinese PLA General Hospital, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huiwei Sun
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Institute of Infectious Disease, Department of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qiyu Jiang
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Institute of Infectious Disease, Department of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yantao Chai
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Institute of Infectious Disease, Department of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaojuan Li
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Institute of Infectious Disease, Department of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhijie Wang
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Institute of Infectious Disease, Department of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Bing Zhu
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Department of Liver Disease of Chinese PLA General Hospital, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Shaoli You
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Department of Liver Disease of Chinese PLA General Hospital, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Boan Li
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Department of Clinical Laboratory, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Junfeng Hao
- Department of Nephrology, Jin Qiu Hospital of Liaoning Province/Geriatric Hospital of Liaoning Province, Shenyang, China
| | - Shaojie Xin
- Chinese People's Liberation Army (PLA) Medical School, Beijing, China.,Department of Liver Disease of Chinese PLA General Hospital, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
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Zhao YY, Fan Y, Wang M, Wang J, Cheng JX, Zou JB, Zhang XF, Shi YJ, Guo DY. Studies on pharmacokinetic properties and absorption mechanism of phloretin: In vivo and in vitro. Biomed Pharmacother 2020; 132:110809. [DOI: 10.1016/j.biopha.2020.110809] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022] Open
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Li M, Liu X, Wang Y, Ju X. In vitro effects of peimine on the activity of cytochrome P450 enzymes. Xenobiotica 2020; 50:1202-1207. [PMID: 32338127 DOI: 10.1080/00498254.2020.1761572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Peimine is a major component of Fritillaria ussuriensis, which is a widely used herb in pediatric. It is very common in Chinese traditional medicine to combine with two or more herbs in the clinic. To investigate the effect of peimine on the activity of cytochrome P450 enzymes (CYP450) is necessary for the clinical application of peimine.The effects of peimine on eight human liver CYP isoforms (i.e., 1A2, 3A4, 2A6, 2E1, 2D6, 2C9, 2C19 and 2C8) were investigated in vitro in human liver microsomes (HLMs) with the specific inhibitors as positive control and without peimine or inhibitors as negative control. The enzyme kinetic parameters were calculated.It was found that peimine inhibited the activity of CYP3A4, 2E1, and 2D6 in a concentration-dependent manner with the IC50 values of 13.43, 21.93, and 22.46 μM, respectively. The inhibition of CYP3A4 was performed in a non-competitive manner with the Ki value of 6.49 μM, and the inhibition of CYP2E1 and 2D6 was performed in a competitive manner with Ki values of 10.76 and 11.95 μM. Additionally, peimine inhibited the activity of CYP3A4 in a time-dependent manner with the KI/Kinact value of 6.17/0.049 min-1 μM-1.Peimine inhibited the activity of CYP3A4, 2E1, and 2D6, which indicated the potential interaction between peimine and drugs metabolized by CYP3A4, 2E1, and 2D6. Further studies are needed to verify the drug-drug interaction and the in vivo effects.
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Affiliation(s)
- Meng Li
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoyan Liu
- Department of Pharmacy, Qilu Hospital of Shandong University, Jinan, China
| | - Yuzhen Wang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Xiuli Ju
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
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11
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Zhou T, Zhang W, Cheng D, Tang X, Feng J, Wu W. Preparation, Characterization, and in vivo Evaluation of NK4-Conjugated Hydroxycamptothecin-Loaded Liposomes. Int J Nanomedicine 2020; 15:2277-2286. [PMID: 32280220 PMCID: PMC7127779 DOI: 10.2147/ijn.s243746] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022] Open
Abstract
PURPOSE In this study, NK4-conjugated hydroxycamptothecin liposomes (NK4-HCPT-Lips) were prepared with the aim of improving drug targeting to the liver. METHODS NK4-HCPT-Lips were prepared using the thin-film dispersion method. In vitro antitumor activities were evaluated by MTT assay. HCPT levels in plasma and tissues were determined via high-performance liquid chromatography (HPLC) with camptothecin as the internal standard, and the characteristics, pharmacokinetics, and bio-distribution of NK4-HCPT-Lips were evaluated. RESULTS The liposomes showed a regular spherical-shaped morphology, and the entrapment efficiency and drug loading capacity reached 82.5 ± 2.4% and 3.01 ± 0.23%, respectively, with a particle size of 155.6 ± 2.6 nm and a zeta potential of -24.8 ± 3.3 mV. Inhibition effect experiments found that NK4-HCPT-Lips had a good inhibition on the HepG2 cells. Pharmacokinetic studies revealed an increase in the area under the curve and mean residence time as well as a decrease in plasma clearance (p < 0.05) of the NK4-HCPT-Lips compared to those of HCPT liposomes and a commercial HCPT injection. Tissue distribution studies showed that NK4-HCPT-Lips were present at high levels in the liver but were cleared from the kidneys. CONCLUSION These results demonstrate that NK4-HCPT-Lips possess excellent liver-targeting attributes, which could enhance the therapeutic effects of drug treatments for hepatic diseases.
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Affiliation(s)
- Ting Zhou
- School of Pharmacy, Guilin Medical University, Guilin541004, People’s Republic of China
| | - Wei Zhang
- School of Pharmacy, Guilin Medical University, Guilin541004, People’s Republic of China
| | - Dongliang Cheng
- School of Pharmacy, Guilin Medical University, Guilin541004, People’s Republic of China
| | - Xin Tang
- School of Public Health, Guilin Medical University, Guilin541004, People’s Republic of China
| | - Jianfang Feng
- School of Pharmacy, Guangxi University of Chinese Medicine, Nanning530200, People’s Republic of China
| | - Wei Wu
- School of Pharmacy, Guilin Medical University, Guilin541004, People’s Republic of China
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