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Robin B, Mousnier L, Lê H, Grabowski N, Chapron D, Bellance-Mina O, Huang N, Agnely F, Fattal E, Tsapis N. PLA-PEG forming worm-like nanoparticles despite unfavorable packing parameter: Formation mechanism, thermal stability and potential for cell internalization. Int J Pharm 2023; 643:123263. [PMID: 37482230 DOI: 10.1016/j.ijpharm.2023.123263] [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: 04/11/2023] [Revised: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Most nanoparticles produced for drug delivery purposes are spherical. However, the literature suggests that elongated particles are advantageous, notably in terms of cellular uptake. Thus, we synthesized biocompatible polylactide-b-poly(ethylene glycol) (PLA-PEG) polymers bearing carboxylate moieties, and used them to formulate worm-like nanoparticles by a simple emulsion-evaporation process. Worm-like nanoparticles with variable aspect ratio were obtained by simply adjusting the molar mass of the PLA block: the shorter the molar mass of the PLA block, the more elongated the particles. As PLA molar mass decreased from 80,000 g/mol to 13,000 g/mol, the proportion of worm-like nanoparticles increased from 0 to 46%, in contradiction with the usual behavior of block polymers based on their packing parameter. To explain this unusual phenomenon, we hypothesized the shape arises from a combination of steric and electrostatic repulsions between PEG chains bearing a carboxylate moiety present at the dichloromethane-water interface during the evaporation process. Worm-like particles turned out to be unstable when incubated at 37 °C, above polymer glass transition temperature. Indeed, above Tg, a Plateau-Rayleigh instability occurs, leading to the division of the worm-like particles into spheres. However, this instability was slow enough to assess worm-like particles uptake by murine macrophages. A slight but significant increase of internalization was observed for worm-like particles, compared to their spherical counterparts, confirming the interest of developing biocompatible anisotropic nanoparticles for pharmaceutical applications such as drug delivery.
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Affiliation(s)
- Baptiste Robin
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Ludivine Mousnier
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Hung Lê
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Nadège Grabowski
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - David Chapron
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | | | - Nicolas Huang
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Florence Agnely
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Elias Fattal
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Nicolas Tsapis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France.
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A Celastrol Drug Delivery System Based on PEG Derivatives: The Structural Effects of Nanocarriers. Molecules 2023; 28:molecules28031040. [PMID: 36770710 PMCID: PMC9921568 DOI: 10.3390/molecules28031040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/21/2022] [Accepted: 01/05/2023] [Indexed: 01/22/2023] Open
Abstract
The therapeutic efficacy of nanoscale drug delivery systems is related to particle size, zeta potential, morphology, and other physicochemical properties. The structure and composition of nanocarriers may affect their physicochemical properties. To systematically evaluate these characteristics, three analogues, namely polyethylene glycol (PEG), PEG-conjugated octadecylamine (PEG-C18), and tri(ethylene glycol) (TEG), were explored as nanocarriers to entrap celastrol (CSL) via the injection-combined dialysis method. CSL nanoparticles were successfully prepared as orange milky solutions, which revealed a similar particle size of approximately 120 nm, with narrow distribution and a negative zeta potential of -20 mV. All these CSL nanoparticles exhibited good storage stability and media stability but presented different drug-loading capacities (DLCs), release profiles, cytotoxicity, and hemolytic activity. For DLCs, PEG-C18/CSL exhibited better CSL entrapment capacity. Regarding the release profiles, TEG/CSL showed the lowest release rate, PEG-C18/CSL presented a moderate release rate, and PEG/CSL exhibited a relatively fast release rate. Based on the different release rates, PEG-C18/CSL and TEG/CSL showed higher degrees of cytotoxicity than PEG/CSL. Furthermore, TEG/CSL showed the lowest membrane toxicity, and its hemolytic rate was below 20%. These results suggest that the structural effects of nanocarriers can affect the interactions between nanocarriers and drugs, resulting in different release profiles and antitumor activity.
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Ding L, Wang X, Wang T, Yu B, Han M, Guo Y. Effect of Lipophilic Chains on the Antitumor Effect of a Dendritic Nano Drug Delivery System. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010069. [PMID: 36615265 PMCID: PMC9822338 DOI: 10.3390/molecules28010069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Oligoethylene glycol dendron (G2) has been used in drug delivery due to its unique dendritic structure and excellent properties. In order to investigate the effects of lipophilic chains on drug delivery, the amphiphilic hybrid compound G2-C18 is synthesized, and celastrol (CSL) is selected to prepare "core-shell" structured CSL-G2-C18 nanoparticles (NPs) via the antisolvent precipitation method. Meanwhile, CSL-G2 NPs are prepared as the control. The two NPs show similar particle sizes and polydispersity indexes, while their morphologies exhibit dramatic differences. CSL-G2 NPs are solid spherical particles, while G2-C18 NPs are vesicles. The two NPs present ideal stability and similar release tendencies. The in vitro toxicity results show that the cell inhibition effect of CSL-loaded NPs is significantly enhanced when compared with free CSL, and the antitumor effect of CSL-G2-C18 NPs is stronger than that of CSL-G2 NPs. The IC50 value of CSL-G2 NPs and CSL-G2-C18 NPs is enhanced about 2.8-fold and 5-fold when compared with free CSL, respectively. The above results show that lipophilic chain-linking dendritic hybrid nanocarriers promote antitumor activity by affecting the morphology of NPs, which may aid in the selection of carrier designs.
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Affiliation(s)
- Lijuan Ding
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Ting Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Bo Yu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100093, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, No. 151 Malianwa North Road, Haidian District, Beijing 100193, China
- Correspondence:
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Chen Y, Wang Z, Wang X, Su M, Xu F, Yang L, Jia L, Zhang Z. Advances in Antitumor Nano-Drug Delivery Systems of 10-Hydroxycamptothecin. Int J Nanomedicine 2022; 17:4227-4259. [PMID: 36134205 PMCID: PMC9482956 DOI: 10.2147/ijn.s377149] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/25/2022] [Indexed: 01/10/2023] Open
Abstract
10-Hydroxycamptothecin (HCPT) is a natural plant alkaloid from Camptotheca that shows potent antitumor activity by targeting intracellular topoisomerase I. However, factors such as instability of the lactone ring and insolubility in water have limited the clinical application of this drug. In recent years, unprecedented advances in biomedical nanotechnology have facilitated the development of nano drug delivery systems. It has been found that nanomedicine can significantly improve the stability and water solubility of HCPT. NanoMedicines with different diagnostic and therapeutic functions have been developed to significantly improve the anticancer effect of HCPT. In this paper, we collected reports on HCPT nanomedicines against tumors in the past decade. Based on current research advances, we dissected the current status and limitations of HCPT nanomedicines development and looked forward to future research directions.
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Affiliation(s)
- Yukun Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Zhenzhi Wang
- Shaanxi University of Chinese Medicine, Xianyang, 712046, People's Republic of China
| | - Xiaofan Wang
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, People's Republic of China
| | - Mingliang Su
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Fan Xu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Lian Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Lijun Jia
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Zhanxia Zhang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
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Dong Z, Shen Y, Zhao S, Wang X, Han M, Zhao N, Ao H, Guo Y. Influence of Hydrophobic Chains in Nanocarriers on Antitumor Efficacy of Docetaxel Nanoparticles. Mol Pharm 2020; 17:1205-1214. [PMID: 32073273 DOI: 10.1021/acs.molpharmaceut.9b01228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
The composition of amphiphilic nanocarriers can affect the antitumor efficacy of drug-loaded nanoparticles and should be researched systematically. In this paper, to study the influence of hydrophobic chains, an amphiphilic copolymer (PEG45PCL17) and hydrophilic PEG (PEG45) were utilized as nanocarriers to prepare docetaxel-loaded nanoparticles (DTX/PEG45PCL17 nanoparticles and DTX/PEG45 nanoparticles) through an antisolvent precipitation method. The two DTX nanoparticles presented a similar drug loading content of approximately 60% and a sheet-like morphology. During the preparation procedure, the drug loading content affected the morphology of DTX nanoparticles, and the nanocarrier composition influenced the particle size. Compared with DTX/PEG45 nanoparticles, DTX/PEG45PCL17 nanoparticles showed a smaller mean diameter and better in vitro and in vivo antitumor activity. The cytotoxicity of DTX/PEG45PCL17 nanoparticles against 4T1 cells was 1.31 μg mL-1, 3.4-fold lower than that of DTX/PEG45 nanoparticles. More importantly, DTX/PEG45PCL17 nanoparticles showed significantly higher antitumor activity in vivo, with an inhibition rate over 80%, 1.5-fold higher than that of DTX/PEG45 nanoparticles. Based on these results, antitumor activity appears to be significantly affected by the particle size, which was determined by the composition of the nanocarrier. In summary, to improve antitumor efficacy, the amphiphilic structure should be considered and optimized in the design of nanocarriers.
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Affiliation(s)
- Zhengqi Dong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Yiping Shen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.,Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, No. 138, Tongda Street, Daoli District, Harbin 150076, China
| | - Shuang Zhao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.,Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, No. 138, Tongda Street, Daoli District, Harbin 150076, China
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Ning Zhao
- Department of Pharmacy, Xiyuan Hospital, China Academy of Chinese Medical Sciences, No.1, Xiyuancaochang, Haidian District, Beijing 100091, China
| | - Hui Ao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
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Zhang Y, Kang L, Huang H, Deng J. Optically Active Janus Particles Constructed by Chiral Helical Polymers through Emulsion Polymerization Combined with Solvent Evaporation-Induced Phase Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6319-6327. [PMID: 31939279 DOI: 10.1021/acsami.9b21222] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Polymer Janus particles (PJPs) have been extensively investigated due to their intriguing features which cannot be achieved in traditional counterparts. Chiral polymer particles also have constituted a unique research area in polymer science. However, how to construct PJPs derived from chiral polymers, especially chiral helical polymers, still remains a significant academic challenge. This contribution reports the first success in preparing optically active PJPs constructed by chiral helical substituted polyacetylene via emulsion polymerization combined with solvent evaporation to induce phase separation. In emulsion polymerization systems, polymethyl methacrylate worked as a template and separated from polyacetylene domains in the course of acetylenic monomers' polymerization and evaporation of the solvent, by which optically active PJPs were formed. The major influencing factors were explored to elucidate their effects on the formation and morphology of PJPs. Mushroom- and bowl-like PJPs were obtained. Scanning electron microscopy (SEM) images ascertain nonspherical morphologies of the obtained PJPs. Circular dichroism and UV-vis absorption spectra demonstrate their optical activity, which originated in the predominantly one-handed helical polyacetylene chains constructing the PJPs. A formation mechanism was then proposed for understanding this unprecedented type of PJPs.
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Affiliation(s)
| | | | - Huajun Huang
- School of Materials Science and Engineering , Zhejiang Sci-Tech University , Hangzhou 310018 , China
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Endoplasmic reticulum-targeted phototherapy using one-step synthesized trace metal-doped carbon-dominated nanoparticles: Laser-triggered nucleolar delivery and increased tumor accumulation. Acta Biomater 2019; 88:462-476. [PMID: 30735810 DOI: 10.1016/j.actbio.2019.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 01/03/2019] [Accepted: 02/04/2019] [Indexed: 12/22/2022]
Abstract
Lysosomal entrapment and liver accumulation are the two main obstacles faced by many anticancer drugs for achieving satisfactory therapeutic outcomes. Here, we develop a facile one-step hydrothermal synthetic route to prepare trace metal (M)-, N-, and O-doped carbon-dominated nanoparticles (termed as MNOCNPs, M = Ni, Pd, or Cu, metal content: <0.1 mol%) with exceptional photothermal properties (e.g., the ultrahigh extinction coefficient of 32.7 L g-1 cm-1), which can simultaneously realize preferable endoplasmic reticulum (ER) targeting and specific tumor enrichment without noticeable liver accumulation after poly(ethylene glycol) (PEG) conjugation. More interestingly, the PEG-modified MNOCNPs with nanoscale lengths exhibit considerable nucleolar delivery and increased tumor accumulation upon laser irradiation. After fluorescence labeling, these PEG-modified MNOCNPs are suitable for fluorescence/photoacoustic/thermal triple-modal imaging-guided photothermal cancer treatment. Additionally, the ultralow metal content ensures the exceptional biosafety of the nanoagents. The present work provides a novel, facile, and general synthetic method of carbon-dominated nanoparticles with superior photothermal properties for highly efficient tumor ablation, and the large-organelle (ER and nucleus)-targeted cancer therapeutic strategy may represent an alternative solution for optimizing the anticancer efficacy of nanomaterials. STATEMENT OF SIGNIFICANCE: Limited wire-like nanomaterials have been used for biomedical applications due to their lack of intrinsic photothermal properties, poor cellular uptake and tumor accumulation, and potential biotoxicity arising from their micrometer lengths and/or massive heavy metal doping. Besides, the clinical applications of many nanoagents are hindered by their tendency to accumulate in liver, which may cause severe liver toxicity. Herein, we develop for the first time a one-step hydrothermal method to prepare wire-like trace metal-, N-, and O-doped carbon-dominated nanoparticles with excellent photothermal properties, massive cellular uptake, preferable ER localization, selective tumor targeting with negligible liver deposition, laser irradiation-enhanced nucleolar delivery and tumor accumulation, and multimodal imaging-guided cancer therapy. This work opens a new window for simultaneously overcoming lysosomal entrapment and liver accumulation in cancer therapy.
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Guo Y, Wang T, Zhao S, Qiu H, Han M, Dong Z, Wang X. Effect of alkyl chain on cellular uptake and antitumor activity of hydroxycamptothecin nanoparticles based on amphiphilic linear molecules. Eur J Pharm Sci 2018; 124:266-272. [PMID: 30189259 DOI: 10.1016/j.ejps.2018.08.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/18/2018] [Accepted: 08/31/2018] [Indexed: 10/28/2022]
Abstract
Drug-loaded nanoparticles utilizing amphiphilic molecules as nanocarriers were developed broadly for nanoscale drug delivery system. Linear amphiphilic molecule (PEG45C18) based on PEG and alkyl chain was designed and synthesized. To study the influence of alkyl chain on antitumor activity, 10-hydroxycamptothecin (HCPT) was selected as the hydrophobic drug, amphiphilic molecule (PEG45C18) and hydrophilic PEG (PEG45) were applied as nanocarriers to form HCPT-loaded nanoparticles (HCPT/PEG45C18 NPs and HCPT/PEG45 NPs). These two nanoparticles presented high drug-loading content, stability, but different release manner and antitumor efficacy. The HCPT/PEG45C18 NPs existed slower release manner but higher antitumor activity than HCPT/PEG45 NPs, IC50 value was decreased approximately 8.5-fold against 4T1 cells in vitro. Moreover, the antitumor efficacy of HCPT/PEG45C18 NPs on 4T1-bearing mice was promoted significantly, the inhibition rate based on average tumor weight was 1.5-fold higher than HCPT/PEG45 NPs, besides, HCPT/PEG45C18 NPs exhibited better tumor accumulation than HCPT/PEG45 NPs. These results suggested alkyl chain affect the antitumor activity significantly due to nanoparticles decorated with alkyl chains existing higher endocytosis efficacy to cells. According to the enhanced antitumor efficacy, it was suggested that HCPT/PEG45C18 NPs showed the potential application for cancer therapy in clinic, and alkyl chains should be considered for designing biomaterials.
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Affiliation(s)
- Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
| | - Ting Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Shuang Zhao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Hanhong Qiu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Zhengqi Dong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
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