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Mane S, Chatterjee S. An Electrochemical Comparison of Single‐Walled and Multi‐Walled Carbon Nanotubes Utilizing Paeonol as the Model Drug. ChemistrySelect 2018. [DOI: 10.1002/slct.201800787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Suyash Mane
- Department of ChemistryInstitute of Chemical Technology, Matunga Mumbai 400019 India
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Chen C, Jia F, Hou Z, Ruan S, Lu Q. Delivery of paeonol by nanoparticles enhances its in vitro and in vivo antitumor effects. Int J Nanomedicine 2017; 12:6605-6616. [PMID: 28924345 PMCID: PMC5595364 DOI: 10.2147/ijn.s143938] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Paeonol (Pae; 2′-hydroxy-4′-methoxyacetophenone) has attracted intense attention as a potential therapeutic agent against various cancers. However, the use of Pae is limited owing to its hydrophobicity. Recently, biodegradable polymeric nanoparticles with amphiphilic copolymers have been used as drug carriers; these have better bioavailability and are promising tumor-targeted drug delivery systems. In the current study, we prepared Pae-loaded nanoparticles (Pae-NPs) with amphiphilic block copolymers using nanoprecipitation. The physiochemical characteristics and antitumor effects of nanoparticles were evaluated in different cancer cells. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays showed substantial inhibition of cell growth by Pae-NPs. Moreover, lower doses of Pae-NPs inhibited cell growth more efficiently than the equivalent doses of free Pae. Inhibition was characterized by significant elevation of intracellular reactive oxygen species and subsequent inhibition of Akt and regulation of apoptotic proteins, which could be partly reversed by pretreatment with the antioxidant N-acetylcysteine. In vivo results also demonstrated that Pae-NPs could exert much stronger antitumor effects than free Pae. Therefore, Pae-NPs represent a promising delivery system to overcome the low solubility of Pae and enable its use in treating cancer.
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Affiliation(s)
- Cong Chen
- Department of Gynecology of Traditional Chinese Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing
| | - Feng Jia
- Department of Neurosurgery, Yancheng City No 1 People's Hospital, The Fourth Affiliated Hospital of Nantong Medical College, Yancheng
| | - Zhibo Hou
- First Department of Respiratory Medicine, Nanjing Chest Hospital, Medical School of Southeast University, Nanjing
| | - Shu Ruan
- Department of Endocrinology, Yancheng Third Hospital, The Affiliated Hospital of Southeast University Medical College, Yancheng, Jiangsu, China
| | - Qibin Lu
- Department of Gynecology of Traditional Chinese Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing
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Tan K, Li J, Li H, Wang Y, Yuan R. A highly sensitive dual-readout assay based on poly(A) and gold nanoparticles for palmatine hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 122:198-203. [PMID: 24316533 DOI: 10.1016/j.saa.2013.11.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 11/08/2013] [Accepted: 11/12/2013] [Indexed: 06/02/2023]
Abstract
This report presents a highly sensitive, poly(A)-stabilized gold nanoparticle-based assay with dual readouts (resonance light scattering and colorimetric) for detecting palmatine hydrochloride (PaH) in real samples. The detection mechanism is based on the fact that palmatine hydrochloride has strong affinity to poly(A), which can stabilize gold nanoparticles at high ionic strength, and cause the aggregation of poly(A)-stabilized AuNPs, resulting in the enhanced resonance light scattering (RLS). At the same time, the color change of poly(A)-stabilized AuNPs solution is from red to blue via purple. Thus a highly sensitive RLS assay for PaH has been developed with a linear range of 0.023-2.5 μg/mL. The limit of detection (LOD, 3σ) is 2.3 ng/mL. In this work, the reaction mechanism of this system was investigated by scanning electron microscope (SEM), dark-field light scattering images (DLSI), dynamiclight scattering (DLS) and circular dichroism (CD). This proposed method was also applied successfully for the determination of PaH in pharmaceutical preparations and urine samples with RSD⩽4.0%. The results are in good agreement with those from the official method.
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Affiliation(s)
- Kejun Tan
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
| | - Jiayu Li
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Huachun Li
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yingying Wang
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Rui Yuan
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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Han S, Wei B, Hao F. Flow-injection post-chemiluminescence method for the determination of palmatine. APPLIED SPECTROSCOPY 2013; 67:747-751. [PMID: 23816126 DOI: 10.1366/12-06841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A post-chemiluminescence (PCL) phenomenon was observed when palmatine was injected in a mixture of N-bromosuccinimide (NBS) and alkaline dichlorofluorescein (DCF) after the chemiluminescence (CL) reaction of NBS-alkaline DCF had finished. Based on the PCL reaction, a rapid and sensitive method for the determination of palmatine was established. Under optimum conditions, the CL intensity was linear, with the concentration of palmatine in the range of 5.0 × 10(-9) to 1.0 × 10(-6) M. The detection limit was 6.0 × 10(-10) M for palmatine. The relative standard deviation for 11 parallel measurements of 1.0 × 10(-7) M palmatine was 1.5%. This method was applied to the determination of palmatine in pharmaceutical samples and biological fluids, with satisfactory results. The possible reaction mechanism is discussed briefly.
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Affiliation(s)
- Suqin Han
- School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, People's Republic of China.
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Yang F, Liu C, Wei Y. Fluorimetric analysis of paeonol in Chinese herbal medicine Cynanchi Paniculati Radix by aluminum ion-sensitized fluorescence. Acta Pharm Sin B 2012. [DOI: 10.1016/j.apsb.2012.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yang QC, Wu WH, Han FM, Chen Y. Identification of in-vivo and in-vitro metabolites of palmatine by liquid chromatography–tandem mass spectrometry. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.61.05.0014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Objectives
Despite its important therapeutic value, the metabolism of palmatine is not yet clear. Our objective was to investigate its in-vivo and in-vitro metabolism.
Methods
Liquid chromatography–tandem electrospray ionization mass spectrometry (LC-ESI/MSn) was employed in this work. In-vivo samples, including faeces, urine and plasma of rats, were collected after oral administration of palmatine (20 mg/kg) to rats. In-vitro samples were prepared by incubating palmatine with intestinal flora and liver microsome of rats, respectively. All the samples were purified via a C18 solid-phase extraction procedure, then chromatographically separated by a reverse-phase C18 column with methanol–formic acid aqueous solution (pH 3.5, 70: 30 v/v) as mobile phase, and detected by an on-line MSn detector. The structure of each metabolite was elucidated by comparing its molecular weight, retention time and full-scan MSn spectra with those of the parent drug.
Key findings
The results revealed that 12 metabolites were present in rat faeces, 13 metabolites in rat urine, 7 metabolites in rat plasma, 10 metabolites in rat intestinal flora and 9 metabolites in rat liver microsomes. Except for six of the metabolites in rat urine, the other in-vivo and in-vitro metabolites were reported for the first time.
Conclusions
Seven new metabolites of palmatine (tri-hydroxyl palmatine, di-demethoxyl palmatine, tri-demethyl palmatine, mono-demethoxyl dehydrogen palmatine, di-demethoxyl dehydrogen palmatine, mono-demethyl dehydrogen palmatine, tri-demethyl dehydrogen palmatine) were reported in this work.
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Affiliation(s)
- Qian C Yang
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan, China
| | - Wen H Wu
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan, China
| | - Feng M Han
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan, China
| | - Yong Chen
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei University, Wuhan, China
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Xiao Y, Zhang YH, Sheng YX, Zhang JL. LC-MS determination and pharmacokinetic studies of paeonol in rat plasma after administration of different compatibility of Su-Xiao-Xin-Tong prescriptions. Biomed Chromatogr 2008; 22:527-34. [DOI: 10.1002/bmc.964] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dong L, Deng C, Wang J, Shen X. Fast determination of paeonol in plasma by headspace solid-phase microextraction followed by gas chromatography–mass spectrometry. Anal Chim Acta 2007; 585:76-80. [PMID: 17386649 DOI: 10.1016/j.aca.2006.12.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Revised: 12/05/2006] [Accepted: 12/07/2006] [Indexed: 11/25/2022]
Abstract
Paeonol is the active component in the traditional Chinese medicines (TCMs), such as Cynanchum paniculatum, which has been used to treat many diseases, such as eczema. In this work, a simple, rapid and sensitive method was developed for the determination of paeonol in rabbit plasma, which was based on headspace solid-phase microextraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS). The extraction parameters of fiber coating, sample temperature, extraction time, stirring rate and ion strength were systemically optimized; the method linearity, detection limit and precision were also investigated. It was shown that the proposed method provided a good linearity (0.02-20 microg mL(-1), R(2)>0.990), low detection limit (2.0 ng mL(-1)) and good precision (R.S.D. value less than 8%). Finally, GC/MS following HS-SPME was applied to fast determination of paeonol in rabbit plasma at different time point after oral demonstration of Cynanchum paniculatum essential oil. The experimental results suggest that the proposed method provided an alternative and novel approach to the pharmacokinetics study of paeonol in the TCMs.
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Affiliation(s)
- Ling Dong
- Zhongshan Hosptial, Medical college of Shanghai, Fudan University, Shanghai 200433, China
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