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Liu H, Jiao Y, Forouzanfar T, Wu G, Guo R, Lin H. High-strength double-network silk fibroin based hydrogel loaded with Icariin and BMSCs to inhibit osteoclasts and promote osteogenic differentiation to enhance bone repair. Biomater Adv 2024; 160:213856. [PMID: 38640877 DOI: 10.1016/j.bioadv.2024.213856] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Large bone defects cause significant clinical challenges due to the lack of optimal grafts for effective regeneration. The tissue engineering way that requires the combination of biomaterials scaffold, stem cells and proper bioactive factors is a prospective method for large bone repair. Here, we synthesized a three-arm host-guest supramolecule (HGSM) to covalently crosslinking with the naturally derived polymer methacrylated silk fibroin (SFMA). The combination of HGSM and SFMA can form a high strength double-crosslinked hydrogel HGSFMA, that serve as the hydrogel scaffold for bone marrow mesenchymal stem cells (BMSCs) growing. Icariin (ICA) loaded in the HGSFMA hydrogel can promote the osteogenesis efficiency of BMSCs and inhibit the osteoclasts differentiation. Our findings demonstrated that the HGSFMA/ICA hydrogel effectively promoted the in vitro adhesion, proliferation, and osteogenic differentiation of BMSCs. Rat femoral defects model show that this hydrogel can completely repair femoral damage within 4 weeks and significantly promote the secretion of osteogenesis-related proteins. In summary, we have prepared an effective biomimetic bone carrier, offering a novel strategy for bone regeneration and the treatment of large-scale bone defects.
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Affiliation(s)
- Huiling Liu
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Yang Jiao
- Department of Stomatology, the Seventh Medical Center of PLA General Hospital, No. 5, Nanmencang, Dongsishitiao Street, Dongcheng District, Beijing 100700, China
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Gang Wu
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan, 3004, Amsterdam 1081LA, the Netherlands.
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Haiyan Lin
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou 310006, China; Savid School of Stomatology, Hangzhou Medical College, Hangzhou 311399, China; Hangzhou Stomatology Hospital, Pinghai Road, Shangcheng District, Hangzhou 310006, China.
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Wang P, Zhu P, Zhang S, Yuan W, Liu Z. Icariin activates far upstream element binding protein 1 to regulate hypoxia-inducible factor-1α and hypoxia-inducible factor-2α signaling and benefits chondrocytes. PeerJ 2023; 11:e15917. [PMID: 37637163 PMCID: PMC10452614 DOI: 10.7717/peerj.15917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/27/2023] [Indexed: 08/29/2023] Open
Abstract
Icariin (ICA) is a typical flavonoid glycoside derived from epimedium plants. It has both anabolic and anti-catabolic effects to improve bone mineral density and reduce bone microstructural degradation. However, the effect and underlying mechanism of ICA on the proliferation and metabolism of chondrocyte and synthesis of extracellular matrix are still unclear. This study aimed to investigate the role and regulation of far upstream element binding protein 1 (FUBP1) in chondrocytes treated with ICA to maintain homeostasis and suppress inflammatory responses. In the study, the effect of ICA on chondrocytes with overexpressed or silenced FUBP1 was detected by the MTS and single-cell cloning methods. The expression of hypoxia-inducible factor-1/2α (HIF-1/2α), FUBP1, matrix metalloproteinase (MMP)9, SRY-box transcription factor 9 (SOX9), and type II collagen (Col2α) in ATDC5 cells, a mouse chondrogenic cell line, treated with ICA was evaluated by immunoblotting. Western blotting revealed 1 µM ICA to have the most significant effect on chondrocytes. Alcian blue staining and colony formation assays showed that the promoting effect of ICA was insignificant in FUBP1-knockdown cells (P > 0.05) but significantly enhanced in FUBP1-overexpressed cells (P < 0.05). Western blot results from FUBP1-knockdown cells treated with or without ICA showed no significant difference in the expression of FUBP1, HIF-1/2α, MMP9, SOX9, and Col2α proteins, whereas the same proteins showed increased expression in FUBP1-overexpressed chondrocytes; moreover, HIF-2α and MMP9 expression was significantly inhibited in FUBP1-knockdown chondrocytes (P < 0.05). In conclusion, as a bioactive monomer of traditional Chinese medicine, ICA is beneficial to chondrocytes.
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Affiliation(s)
- Pengzhen Wang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Pingping Zhu
- Department of Neurology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Shaoheng Zhang
- Department of Cardiology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Wei Yuan
- Department of Hepatobiliary Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong
| | - Zhihe Liu
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
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Liu Y, Li H, Wang X, Huang J, Zhao D, Tan Y, Zhang Z, Zhang Z, Zhu L, Wu B, Chen Z, Peng W. Anti-Alzheimers molecular mechanism of icariin: insights from gut microbiota, metabolomics, and network pharmacology. J Transl Med 2023; 21:277. [PMID: 37095548 PMCID: PMC10124026 DOI: 10.1186/s12967-023-04137-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/16/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Icariin (ICA), an active ingredient extracted from Epimedium species, has shown promising results in the treatment of Alzheimer's disease (AD), although its potential therapeutic mechanism remains largely unknown. This study aimed to investigate the therapeutic effects and the underlying mechanisms of ICA on AD by an integrated analysis of gut microbiota, metabolomics, and network pharmacology (NP). METHODS The cognitive impairment of mice was measured using the Morris Water Maze test and the pathological changes were assessed using hematoxylin and eosin staining. 16S rRNA sequencing and multi-metabolomics were performed to analyze the alterations in the gut microbiota and fecal/serum metabolism. Meanwhile, NP was used to determine the putative molecular regulation mechanism of ICA in AD treatment. RESULTS Our results revealed that ICA intervention significantly improved cognitive dysfunction in APP/PS1 mice and typical AD pathologies in the hippocampus of the APP/PS1 mice. Moreover, the gut microbiota analysis showed that ICA administration reversed AD-induced gut microbiota dysbiosis in APP/PS1 mice by elevating the abundance of Akkermansia and reducing the abundance of Alistipe. Furthermore, the metabolomic analysis revealed that ICA reversed the AD-induced metabolic disorder via regulating the glycerophospholipid and sphingolipid metabolism, and correlation analysis revealed that glycerophospholipid and sphingolipid were closely related to Alistipe and Akkermansia. Moreover, NP indicated that ICA might regulate the sphingolipid signaling pathway via the PRKCA/TNF/TP53/AKT1/RELA/NFKB1 axis for the treatment of AD. CONCLUSION These findings indicated that ICA may serve as a promising therapeutic approach for AD and that the ICA-mediated protective effects were associated with the amelioration of microbiota disturbance and metabolic disorder.
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Affiliation(s)
- Yuqing Liu
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Hongli Li
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xiaowei Wang
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
| | - Jianhua Huang
- Hunan Academy of Chinese Medicine, Changsha, 410013, People's Republic of China
| | - Di Zhao
- Hunan Academy of Chinese Medicine, Changsha, 410013, People's Republic of China
| | - Yejun Tan
- School of Mathematics, University of Minnesota Twin Cities, Minneapolis, MN, 55455, USA
| | - Zheyu Zhang
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Zhen Zhang
- YangSheng College of Traditional Chinese Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, Guizhou, China
| | - Lemei Zhu
- Academician Workstation, Changsha Medical University, Changsha, 410219, China
| | - Beibei Wu
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Zhibao Chen
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Weijun Peng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410011, China.
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Zhou L, Huang Z, Yang S, Wei J, Xu Y, Hu L, Guo X, Yuan L, Yuan Z, Yang X, Tao X, Zhang Q. Preparation of ICA-loaded mPEG-ICA nanoparticles and their application in the treatment of LPS-induced H9c2 cell damage. Nanoscale Res Lett 2021; 16:155. [PMID: 34657986 PMCID: PMC8523016 DOI: 10.1186/s11671-021-03609-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/28/2021] [Indexed: 05/05/2023]
Abstract
Hydrophilic polyethylene glycol monomethyl ether (mPEG) was grafted onto Icariin (ICA) by succinic anhydride to form a polyethylene glycol-Icariin (mPEG-ICA) polymer. The structure of the polymer was characterized by Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance spectroscopy (NMR). mPEG-ICA nanoparticles loaded with ICA were prepared by physical embedding of ICA by dialysis. The particle size was determined to be (220 ± 13.7) nm, and the ζ potential was (2.30 ± 1.33) mV by dynamic light scattering (DLS). Under a transmission electron microscope (TEM), the nanoparticles were spherical, and the morphology was regular. In the medium with pH 7.4, the drug release rate of mPEG-ICA nanoparticles reached (52.80 ± 1.70)% within 72 h. At pH 6.8, the cumulative drug release of nanoparticles reached (75.66 ± 0.17)% within 48 h. Treatment of the nanoparticles with LPS-treated H9c2 cells maintained cell viability, reduced LDH release and exerted antiapoptotic effects. Moreover, ICA-loaded mPEG-ICA nanoparticles significantly decreased the mRNA expression of the myocardial inflammatory cytokines TNF-α, IL-1β and IL-6M. In conclusion, ICA-loaded mPEG-ICA nanoparticles protected against LPS-induced H9c2 cell injury.
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Affiliation(s)
- Lin Zhou
- Department of Geriatrics and General Medicine (QZ) of Affiliated Taihe Hospital, Pharmaology Department (LZ, JW, XG, QZ), School of Basic Medical Science, Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Zhi Huang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Shanyi Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Jiarui Wei
- Department of Geriatrics and General Medicine (QZ) of Affiliated Taihe Hospital, Pharmaology Department (LZ, JW, XG, QZ), School of Basic Medical Science, Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Yan Xu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Lin Hu
- Department of Geriatrics and General Medicine (QZ) of Affiliated Taihe Hospital, Pharmaology Department (LZ, JW, XG, QZ), School of Basic Medical Science, Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Xinrong Guo
- Department of Geriatrics and General Medicine (QZ) of Affiliated Taihe Hospital, Pharmaology Department (LZ, JW, XG, QZ), School of Basic Medical Science, Hubei University of Medicine, Shiyan, 442000, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research (XG), Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Limin Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Zexuan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China
| | - Xiaojun Tao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province (ZH, SY, YX, LY, ZY, XY, XT), School of Medicine, Hunan Normal University, Changsha, China.
| | - Qiufang Zhang
- Department of Geriatrics and General Medicine (QZ) of Affiliated Taihe Hospital, Pharmaology Department (LZ, JW, XG, QZ), School of Basic Medical Science, Hubei University of Medicine, Shiyan, 442000, Hubei, China.
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Wang P, Meng Q, Wang W, Zhang S, Xiong X, Qin S, Zhang J, Li A, Liu Z. Icariin inhibits the inflammation through down-regulating NF-κB/HIF-2α signal pathways in chondrocytes. Biosci Rep 2020; 40:BSR20203107. [PMID: 33155655 DOI: 10.1042/BSR20203107] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [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: 09/03/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 01/11/2023] Open
Abstract
Articular cartilage injury or defect is a common disease and is mainly characterized by cartilage degradation because of chondrocyte inflammation. By now, there are no effective drugs and methods to protect articular cartilage from degradation. Icariin (ICA) is a typical flavonoid compound extracted from Epimedii Folium with anti-inflammatory and bone-protective effects. Our previous studies demonstrate that ICA up-regulates HIF-1α expression and glycolysis in chondrocytes and maintains chondrocyte phenotype. As another member of HIFs family, HIF-2α always plays a key role in inflammation. The effect of ICA on HIF-2α is unclear by now. In the present study, we confirmed the findings in our previous study that ICA promoted not only chondrocyte vitality and extracellular matrix (ECM) synthesis, but also the anti-inflammatory effect of ICA. In bone defect mice, ICA inhibited the expressions of NF-κB and HIF-2α. In TNF-α-treated ADTC5 chondrocytes, ICA neutralized the activation of IKK (IKK phosphorylation), the phosphorylation of IkB and NF-κB and the expression of HIF-2α. Furthermore, ICA inhibited the nucleus transfer of NF-κB and the expressions of MMP9 and ADAMTS5, two key targets of NF-κB/HIF-2α signal pathway. Taken together, the present study demonstrated that ICA may increase the vitality of chondrocytes by suppressing the inflammatory injury through the inhibition on NF-κB/HIF-2α signaling pathway. ICA is one effective candidate drug for the treatment of articular cartilage injury.
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Wang P, Xiong X, Zhang J, Qin S, Wang W, Liu Z. Icariin increases chondrocyte vitality by promoting hypoxia-inducible factor-1α expression and anaerobic glycolysis. Knee 2020; 27:18-25. [PMID: 31883860 DOI: 10.1016/j.knee.2019.09.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/15/2019] [Accepted: 09/19/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Articular cartilage is a unique avascular tissue in which chondrocytes are embedded in extracellular matrix (ECM). The decreased ECM resulting from the loss of articular chondrocyte viability leads to degenerative diseases such as osteoarthritis (OA). This study aims to investigate the effect of icariin (ICA) on ECM synthesis and chondrocyte viability. METHODS Micromass culture, alcian blue, and Safran O (SO)/fast green staining were used to investigate chondrocyte viability and ECM synthesis in chondrocytes treated with ICA. The expression of hypoxia-inducible factor-1α (HIF-1α), SOX9, and anaerobic glycolysis enzymes were detected by western blot and reverse transcription-quantitative polymerase chain reaction. RESULTS ICA, an active flavonoid component of Herba epimedii, was demonstrated to increase chondrocyte viability and ECM synthesis. HIF-1α is a key mediator of chondrocyte response to fluctuations in oxygen availability during cartilage development or damage, and its expression was unregulated by ICA treatment. Meanwhile, ICA treatment increased SOX9 expression, which is a key regulator of ECM synthesis. Furthermore, ICA treatment increased the expression of glucose transporter 1 (GLUT1), glucose-6-phosphate dehydrogenase (G6PD), phosphoglycerate kinase 1 (PGK1), and pyruvate dehydrogenase kinase 1 (PDK1), which contribute to glucose transfer and anaerobic glycolysis. CONCLUSIONS The present study revealed that ICA treatment facilitates chondrocyte vitality by promoting HIF-1α expression and anaerobic glycolysis. Therefore, ICA could be a novel clinical treatment for OA.
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Affiliation(s)
- Pengzhen Wang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China
| | - Xifeng Xiong
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China
| | - Jinli Zhang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China
| | - Shengnan Qin
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China
| | - Wen Wang
- Department of Orthopaedics, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China.
| | - Zhihe Liu
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangdong, PR China.
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Chen M, Cui Y, Li H, Luan J, Zhou X, Han J. Icariin Promotes the Osteogenic Action of BMP2 by Activating the cAMP Signaling Pathway. Molecules 2019; 24:E3875. [PMID: 31661767 DOI: 10.3390/molecules24213875] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/19/2019] [Accepted: 10/23/2019] [Indexed: 12/26/2022] Open
Abstract
Icariin (ICA) is the main active flavonoid glucoside from herbs of the genus Epimedium; in traditional Chinese medicine, these herbs have long been prescribed for the treatment of bone fractures and osteoporosis. Several studies have shown that treatment with ICA can increase osteogenic differentiation and reduce bone loss in vivo and in vitro. However, the definite signaling pathway of this osteogenic effect remains unclear. In this study, we selected bone morphogenetic protein 2 (BMP2)-induced osteoblastic differentiation of multipotent mesenchymal progenitor C2C12 cells as a model of osteoblast differentiation. We investigated the effects of ICA on C2C12 cells osteogenic differentiation and the underlying molecular mechanisms. We found that ICA could enhance BMP2-mediated osteoblastic differentiation of C2C12 cells in a dose-dependent manner. Treatment with ICA activated the cAMP/PKA/CREB signaling axis in a time-dependent manner. Blocking cAMP signaling using the PKA selective inhibitor H89 significantly inhibited the stimulatory effect of ICA on osteogenesis. Therefore, the osteoinductive potential and the low cost of ICA indicate that it is a promising alternative treatment or promoter for enhancing the therapeutic effects of BMP2.
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Zheng Y, Lu L, Yan Z, Jiang S, Yang S, Zhang Y, Xu K, He C, Tao X, Zhang Q. mPEG-icariin nanoparticles for treating myocardial ischaemia. Artif Cells Nanomed Biotechnol 2019; 47:801-811. [PMID: 30836782 DOI: 10.1080/21691401.2018.1554579] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Icariin (ICA), a major active ingredient from Chinese medicine, has unique pharmacological effects on ischaemic heart disease. However, its hydrophobic property limits its administration and leads to poor efficacy. This work aimed to change its hydrophobic property and improve the treatment efficacy. We designed a new nano-drug to increase the ICA delivery. ICA was modified with hydrophilic polyethylene glycol monomethyl ether (mPEG) by a succinic anhydride linker to form a polyethylene glycol-icariin (mPEG-ICA) polymer. The structure of this polymer was identified by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. The content of ICA in the polymer was 32% as detected by ultraviolet spectrophotometry. mPEG-ICA nanoparticles, of 143.3 nm, were prepared by the dialysis method, and zeta potential was 0.439 mV by dynamic light scattering. The nanoparticles had a spherical shape on transmission electron microscopy. In media with pH 7.4 and 6.8, ICA release from mPEG-ICA nanoparticles after 72 h was about 0.78% and 64.05%, respectively, so the ICA release depended on the release media pH. On MTT and lactate dehydrogenase activity assay, mPEG-ICA nanoparticles could reduce cell damage induced by oxgen-glucose deprivation. Hoechst 33258 staining and TUNEL and AnnexinV-FITC/PI double staining showed that ICA nanoparticles could increase the activity of H9c2 cardiomyocytes under oxgen-glucose deprivation conditions by decreasing apoptosis. ICA modified by hydrophilic mPEG could improve its efficacy.
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Affiliation(s)
- Yongqiang Zheng
- a Department of Pharmacology, Laboratory of Chinese Herbal Pharmacology , Biomedical Research Institute, Hubei University of Medicine , Shiyan , Hubei , China
| | - Lingli Lu
- a Department of Pharmacology, Laboratory of Chinese Herbal Pharmacology , Biomedical Research Institute, Hubei University of Medicine , Shiyan , Hubei , China
| | - Zhengli Yan
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Sufang Jiang
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Shanyi Yang
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Yingzi Zhang
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Kangwei Xu
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Chunlian He
- b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Xiaojun Tao
- a Department of Pharmacology, Laboratory of Chinese Herbal Pharmacology , Biomedical Research Institute, Hubei University of Medicine , Shiyan , Hubei , China.,b Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University , Changsha , China
| | - Qiufang Zhang
- a Department of Pharmacology, Laboratory of Chinese Herbal Pharmacology , Biomedical Research Institute, Hubei University of Medicine , Shiyan , Hubei , China
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