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Tan Y, Fan S, Wu X, Liu M, Dai T, Liu C, Ni S, Wang J, Yuan X, Zhao H, Weng Y. Fabrication of a three-dimensional printed gelatin/sodium alginate/nano-attapulgite composite polymer scaffold loaded with leonurine hydrochloride and its effects on osteogenesis and vascularization. Int J Biol Macromol 2023; 249:126028. [PMID: 37506787 DOI: 10.1016/j.ijbiomac.2023.126028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Bone tissue engineering scaffolds have made significant progress in treating bone defects in recent decades. However, the lack of a vascular network within the scaffold limits bone formation after implantation in vivo. Recent research suggests that leonurine hydrochloride (LH) can promote healing in full-thickness cutaneous wounds by increasing vessel formation and collagen deposition. Gelatin and Sodium Alginate are both polymers. ATP is a magnesium silicate chain mineral. In this study, a Gelatin/Sodium Alginate/Nano-Attapulgite composite hydrogel was used as the base material first, and the Gelatin/Sodium Alginate/Nano-Attapulgite composite polymer scaffold loaded with LH was then created using 3D printing technology. Finally, LH was grafted onto the base material by an amide reaction to construct a scaffold loaded with LH to achieve long-term LH release. When compared to pure polymer scaffolds, in vitro results showed that LH-loaded scaffolds promoted the differentiation of BMSCs into osteoblasts, as evidenced by increased expression of osteogenic key genes. The results of in vivo tissue staining revealed that the drug-loaded scaffold promoted both angiogenesis and bone formation. Collectively, these findings suggest that LH-loaded Gelatin/Sodium Alginate/Nano-Attapulgite composite hydrogel scaffolds are a potential therapeutic strategy and can assist bone regeneration.
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Affiliation(s)
- Yadong Tan
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Shijie Fan
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Xiaoyu Wu
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Menggege Liu
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Ting Dai
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Chun Liu
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Su Ni
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Jiafeng Wang
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Xiuchen Yuan
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China
| | - Hongbin Zhao
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China.
| | - Yiping Weng
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213164, China; Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China.
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Shi XQ, Chen G, Tan JQ, Li Z, Chen SM, He JH, Zhang L, Xu HX. Total alkaloid fraction of Leonurus japonicus Houtt. Promotes angiogenesis and wound healing through SRC/MEK/ERK signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115396. [PMID: 35598796 DOI: 10.1016/j.jep.2022.115396] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leonurus japonicus Houtt., also known as motherwort, is a traditional Chinese medicine that was first identified in Shennong Bencao Jing, the first and essential pharmacy monograph in China. L. japonicus has been regarded as a good gynecological medicine since ancient times. It has been widely used in clinical settings for treatment of gynecological diseases and postnatal rehabilitation with good efficacy and low adverse effects. AIM OF THE STUDY The main purpose of this study was to determine the angiogenic and wound healing effects of total alkaloid fraction from L. japonicus Houtt. (TALH) in vivo and in vitro. In addition, the main bioactive components of total alkaloids were to be identified and analyzed in this study. MATERIALS AND METHODS First, the UHPLC/Q-TOF-MS method was used to identify and quantify the major components in the TALH extract. The wound healing activity was evaluated in vivo using a rat full-thickness cutaneous wound model. Histological study of wound healing in rat model was performed via immunohistochemistry and immunofluorescence. Cell proliferation was determined by MTT assay. Wound healing and transwell assays were used for detection of cell migration. The effect on tube formation was determined by tube formation assay in HUVECs. Western blot and RT-PCR were used to detect the expressions of relative proteins and genes respectively. Knock-down of SRC by siRNA was done to verify the crucial role of SRC in promotion of angiogenesis induced by TALH. RESULTS Seven characteristic peaks were recognized in the UHPLC/Q-TOF-MS spectrum, while four of the main components were quantified. The wound model in rats showed that treatment of TALH promoted wound healing by stimulating cellular proliferation and collagen deposition. In vitro experiments showed that co-treatment of TALH and VEGF increased cell proliferation, migration and tube formation in HUVECs. Mechanistic studies suggested that the co-treatment increased gene expressions of SRC, MEK1/2 and ERK1/2, as well as the phosphorylation levels of these proteins. Furthermore, the effect of co-treatment was attenuated after SRC knockdown, suggesting that SRC plays an important role in angiogenesis and wound healing induced by TALH and VEGF co-treatment. CONCLUSION Our results showed that TALH was one of the main active components of L. japonicus that promoted angiogenesis and wound healing by regulating the SRC/MEK/ERK pathway. Our study provided scientific basis for better clinical application of L. japonicas.
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Affiliation(s)
- Xiao-Qin Shi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Gan Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Jia-Qi Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Zhuo Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Si-Min Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Jia-Hui He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China.
| | - Hong-Xi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Kopalli SR, Annamneedi VP, Koppula S. Potential Natural Biomolecules Targeting JAK/STAT/SOCS Signaling in the Management of Atopic Dermatitis. Molecules 2022; 27:molecules27144660. [PMID: 35889539 PMCID: PMC9319717 DOI: 10.3390/molecules27144660] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/29/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease caused by the dysregulation of cytokines and other immune mediators. JAK/STAT is a classical signal transduction pathway involved in various biological processes, and its dysregulation contributes to the key aspects of AD pathogenesis. Suppressor of cytokine signaling (SOCS) proteins negatively regulate the immune-related inflammatory responses mediated by the JAK/STAT pathway. JAK/STAT-mediated production of cytokines including IL-4, IL-13, IL-31, and TSLP inhibits the expression of important skin barrier proteins and triggers pruritus in AD. The expression of SOCS proteins regulates the JAK-mediated cytokines and facilitates maintaining the skin barrier disruptions seen in AD. STATs are crucial in dendritic-cell-activated Th2 cell differentiation in the skin, releasing inflammatory cytokines, indicating that AD is a Th2-mediated skin disorder. SOCS proteins aid in balancing Th1/Th2 cells and, moreover, regulate the onset and maintenance of Th2-mediated allergic responses by reducing the Th2 cell activation and differentiation. SOCS proteins play a pivotal role in inflammatory cytokine-signaling events that act via the JAK/STAT pathway. Therapies relying on natural products and derived biomolecules have proven beneficial in AD when compared with the synthetic regimen. In this review, we focused on the available literature on the potential natural-product-derived biomolecules targeting JAK/STAT/SOCS signaling, mainly emphasizing the SOCS family of proteins (SOCS1, SOCS3, and SOCS5) acting as negative regulators in modulating JAK/STAT-mediated responses in AD pathogenesis and other inflammatory disorders.
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Affiliation(s)
| | - Venkata Prakash Annamneedi
- Convergence Science Research Center, College of Pharmacy and Institute of Chronic Diseases, Sahmyook University, Seoul 01795, Korea;
| | - Sushruta Koppula
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju 27381, Korea
- Correspondence:
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Zhu Y, Lin B, Ding F, Ma F, Zhou X, Zong H, Feng G, Chen Q, Chen G, Lv X. Leonurine negatively modulates T cells activity by suppressing recombination activation gene protein 2 in pulmonary fibrosis. EUR J INFLAMM 2021. [DOI: 10.1177/20587392211035907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The key transformed T cell transcription factor recombination activation gene protein 2 (RAG2) is regulated during inflammation to allow for the acquisition of effector T cells functions. The present study was designed to investigate whether stress signals elicited by leonurine (LEO) could lead to the degradation of RAG2 through v-akt murine thymoma viral oncogene homolog (AKT) signaling in lung fibrosis. Methods A total of 120 female mice were randomly divided into five groups (Group I–V): Normal group, bleomycin (BLM), BLM+LEO 50 mg/kg/d, BLM+LEO 100 mg/kg/d, and BLM+LEO 50 mg/kg/d+LY294002. Hematoxylin-eosin, Masson’s, and terminal deoxynucleotidyl transferase dUTP nick-end labeling staining were performed to observe the pathomorphological changes. The expression of CD3+, TGF-β, RAG2, and Bcl proteins was examined by immunodetection, while that of E-cadherin (ECAD), AKT, TGF-β1, alpha-actin-2, Bax, and RAG2 was detected by Western blot analysis. Results The level of T lymphocytes was reduced sharply in LEO-treated mice as compared to the other groups. The AKT signal was greatly inhibited in the BLM group and activated with LEO treatment on day 14. In addition, RAG2 was attenuated by LEO on day 14 and day 28. LY294002 could reverse the expression of AKT and RAG2 on day 28. Remarkably, the low dose of LEO has a greater protective efficacy as compared to the high-dose LEO group in terms of pulmonary fibrosis, T cell inactivation, and apoptosis in alveolar cells. Conclusion The results of the present study suggested that LEO has a protective effect on lung fibrosis with possible mechanisms of attenuating apoptosis and inflammation via the upregulation of the AKT signal in transformed T cells by suppressing the expression and activity of RAG2.
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Affiliation(s)
- Yongping Zhu
- Department of Cardiovascular Surgery, Fujian Medical University Attached Union Hospital, Fuzhou, Fujian, China
| | - Bixia Lin
- Department of Pharmacy, 1st Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Fadian Ding
- Department of Hepatopancreatobiliary Surgery and Institute of Abdominal Surgery, 1st Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Fenfen Ma
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University, Shanghai, China
| | - Xiaohui Zhou
- Department of Clinical Skill Training Center, Fujian Medical University, Fuzhou, Fujian, China
| | - Haiyang Zong
- Department of Orthopedic Surgery, The 920 Hospital of the Joint Logistic Support Force, Kunming, Yunnan, China
| | - Gao Feng
- Department of Pathology, 1st Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Qingquan Chen
- Department of Laboratory Medicine, Fujian Medical University, Fuzhou, China
| | - Gongping Chen
- Department of Respiratory and Critical Care Medicine, 1st Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Institute of Respiratory Disease, Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaoting Lv
- Department of Respiratory and Critical Care Medicine, 1st Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Institute of Respiratory Disease, Fujian Medical University, Fuzhou, Fujian, China
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Yang L, Liu S, Mu S, Man X, Ba G, Guo R, Li Y, Zhou L, Yang L, Fu Q. Leonurine hydrochloride promotes osteogenic differentiation and increases osteoblastic bone formation in ovariectomized mice by Wnt/β-catenin pathway. Biochem Biophys Res Commun 2018; 504:941-948. [DOI: 10.1016/j.bbrc.2018.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
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Two new oleanane derivatives from the fruits of Leonurus japonicus and their cytotoxic activities. J Nat Med 2018; 73:252-256. [DOI: 10.1007/s11418-018-1244-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 08/13/2018] [Indexed: 10/28/2022]
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Tan B, Cai W, Zhang J, Zhou N, Ma G, Yang P, Zhu Q, Zhu Y. Identification of UDP-glucuronosyltransferase isoforms responsible for leonurine glucuronidation in human liver and intestinal microsomes. Xenobiotica 2014; 44:775-84. [DOI: 10.3109/00498254.2014.898808] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Characterization of metabolites of leonurine (SCM-198) in rats after oral administration by liquid chromatography/tandem mass spectrometry and NMR spectrometry. ScientificWorldJournal 2014; 2014:947946. [PMID: 24772041 PMCID: PMC3956552 DOI: 10.1155/2014/947946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 12/31/2013] [Indexed: 11/17/2022] Open
Abstract
Leonurine, a major bioactive component from Herba Leonuri, shows therapeutic potential for cardiovascular disease and stroke prevention in some preclinical experiments. The aim of this study is to characterize metabolites of leonurine in rats using high performance liquid chromatography coupled with tandem mass spectrometry (HPLC/MS/MS). The chromatographic separation was performed on an Agilent ZORBAX SB-C18 column using a gradient elution with acetonitrile/ammonium acetate buffer (10 mM, pH 4.0) solvent system. An information dependent acquisition (IDA) method was developed for screening and identifying metabolites of leonurine under positive ion mode. Compared with control, the interesting compound in the extracted ion chromatogram (XIC) of the in vivo samples was chosen and further identified by analyzing their retention times, changes in observed mass (Δm/z), and spectral patterns of product ion utilizing advanced software tool. For the first time, a total of three metabolites were identified, including two phase II metabolites generated by glucuronidation (M1) and sulfation (M2) and one phase I metabolite formed by O-demethylation (M3). Finally, the lead metabolite M1 was isolated from urine and its structure was characterized as leonurine-10-O-β-D-glucuronide by NMR spectroscopy (1H, 13C, HMBC, and HSQC).
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12
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Liu XH, Pan LL, Zhu YZ. Active chemical compounds of traditional Chinese medicine Herba Leonuri: implications for cardiovascular diseases. Clin Exp Pharmacol Physiol 2012; 39:274-82. [DOI: 10.1111/j.1440-1681.2011.05630.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Effects of leonurine hydrochloride on medically induced incomplete abortion in early pregnancy rats. Eur J Obstet Gynecol Reprod Biol 2011; 159:375-80. [DOI: 10.1016/j.ejogrb.2011.09.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 07/26/2011] [Accepted: 09/06/2011] [Indexed: 11/23/2022]
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Zhu Q, Cai W, Sha X, Ma G, Zheng Y, Shi X, Zhu Y. Quantification of leonurine, a novel potential cardiovascular agent, in rat plasma by liquid chromatography-tandem mass spectrometry and its application to pharmacokinetic study in rats. Biomed Chromatogr 2011; 26:518-23. [DOI: 10.1002/bmc.1699] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 07/22/2011] [Indexed: 11/10/2022]
Affiliation(s)
| | - Weimin Cai
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
| | - Xianyi Sha
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
| | - Guo Ma
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
| | - Yuanting Zheng
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
| | - Xueru Shi
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
| | - Yizhun Zhu
- School of Pharmacy; Fudan University; Zhangheng Road 826; Pudong District; Shanghai; 200032; China
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Liu X, Pan L, Gong Q, Zhu Y. Leonurine (SCM-198) improves cardiac recovery in rat during chronic infarction. Eur J Pharmacol 2010; 649:236-41. [DOI: 10.1016/j.ejphar.2010.08.056] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Revised: 07/16/2010] [Accepted: 08/25/2010] [Indexed: 11/15/2022]
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4-Guanidino-n-butyl Syringate (Leonurine, SCM 198) Protects H9c2 Rat Ventricular Cells From Hypoxia-induced Apoptosis. J Cardiovasc Pharmacol 2009; 54:437-44. [DOI: 10.1097/fjc.0b013e3181bae160] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Liu XH, Xin H, Hou AJ, Zhu YZ. PROTECTIVE EFFECTS OF LEONURINE IN NEONATAL RAT HYPOXIC CARDIOMYOCYTES AND RAT INFARCTED HEART. Clin Exp Pharmacol Physiol 2009; 36:696-703. [DOI: 10.1111/j.1440-1681.2008.05135.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tao J, Zhang P, Liu G, Yan H, Bu X, Ma Z, Wang N, Wang G, Jia W. Cytotoxicity of Chinese motherwort (YiMuCao) aqueous ethanol extract is non-apoptotic and estrogen receptor independent on human breast cancer cells. JOURNAL OF ETHNOPHARMACOLOGY 2009; 122:234-239. [PMID: 19330917 DOI: 10.1016/j.jep.2009.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND Motherwort has been used as medicinal herb for many years in both China and Europe. In particular, Chinese motherwort has been commonly used to treat disorders of mammary gland in Chinese traditional medicine (TCM). Chinese motherwort aqueous extract (MAE)was previously reported to have anti-cancer activity in breast cancer cells with low potency (IC50s in a range of 8-40 mg/mL). However, treatment of motherwort ethanol extract in vivo markedly suppressed the development of uterine adenomyosis and mammary cancers in mice. Therefore, anti-cancer activity of Chinese motherwort, especially in a form of ethanol extract, needs to be confirmed further at cellular level. MATERIALS AND METHODS Aerial part of Chinese motherwort (Leonurus japonicus Houtt) dry powder is extracted with 70% ethanol and the chemical components were characterized with HPLC finger print as well as mass spectrometry. Cytotoxicity of the motherwort aqueous ethanol extract (MAEE) was analyzed with MTT assay on ER negative MDA-MB-231 and ER positive MCF-7 human breast cancer cell lines. Hoechst 33342 staining and flow cytometry were used to verify whether the cell death induced by MAEE is apoptosis in nature. Cell cycle status of MAEE treated cells were analyzed with flow cytometry. RESULTS Our results showed that MAEE caused cell death in a dose-dependent and time-dependent fashion in both ER positive and negative breast cancer cells. Morphology, Hoechst 33342 staining and flow cytometry evidence all indicated the cell death is not in an apoptotic nature. Furthermore, low concentrations of MAEE caused cell cycle arrest at G2/M phase. CONCLUSIONS These data suggest that Chinese motherwort aqueous ethanol extract may effectively inhibit the proliferation of breast cancer cells through mechanisms of both cytotoxicity and cell cycle arrest. The cellular effects of MAEE are non-apoptotic and ER independent on breast cancer cells.
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Affiliation(s)
- Jiang Tao
- Department of General Dentistry, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
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Wang Z, Zhang PL, Ju Y. Effect of leonurine on the activity of creatine kinase. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2004; 6:281-287. [PMID: 15621588 DOI: 10.1080/10286020310001595962] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The effects of leonurine (1) on the activity of creatine kinase (CK) have been studied. The results show that leonurine inhibits enzyme activity in concentration- and time-dependent manners (at 0.75 and 1.51 mmol from 12 to 72 h). There are two mechanisms for the inhibition process. Compound 1 first acts as a non-competitive inhibitor and then as an irreversible inhibitor. Changes of CK were not found in 10% SDS-PAGE, but the amount of dimeric CK decreased in 10% non-SDS gel. The results suggest that 1 can inhibit CK activity by degrading its dimeric structure.
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Affiliation(s)
- Zhao Wang
- Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing, China.
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Pang S, Tsuchiya S, Horie S, Uchida M, Murayama T, Watanabe K. Enhancement of phenylephrine-induced contraction in the isolated rat aorta with endothelium by H2O-extract from an Oriental medicinal plant Leonuri herba. JAPANESE JOURNAL OF PHARMACOLOGY 2001; 86:215-22. [PMID: 11459124 DOI: 10.1254/jjp.86.215] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Leonuri herba (I-mu-ts'ao, the Chinese motherwort) is an ancient Chinese traditional herb. Although the pharmacological effects of extracts of Leonuri herba have been shown in platelets and uteri, the effect on the vascular system has not been determined. In the present study, we investigated the effects of extracts of Leonuri herba on the contraction of the isolated rat aorta. Although the H20-extract (0.3-3 mg/ml) by itself showed a limited effect, the extract enhanced phenylephrine-induced contraction of the aorta with endothelium, but not without endothelium. The H20-extract, like N(G)-nitro-L-arginine methyl ester (L-NAME, an inhibitor of nitric oxide synthase), significantly inhibited the relaxation induced by acetylcholine in the aorta with endothelium. The inhibitory effect of H20-extract on the relaxation decreased by co-addition with 1 mM L-arginine. The vasoconstrictive effect of H20-extract was not due to leonurine, which is a constituent in Leonuri herba and shows uterotonic activity. Intravenous injection of the H20-extract (1.5 mg/kg) to rats caused an increase in blood pressure for 5 min, like L-NAME (1.35 mg/kg). These findings suggest that there is a component(s) in Leonuri herba, which shows a vasoconstrictive activity in rat aorta in vitro and in vivo and has similar pharmacological profile to that of L-NAME.
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Affiliation(s)
- S Pang
- Laboratory of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Chiba University, Japan
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Graham JG, Quinn ML, Fabricant DS, Farnsworth NR. Plants used against cancer - an extension of the work of Jonathan Hartwell. JOURNAL OF ETHNOPHARMACOLOGY 2000; 73:347-377. [PMID: 11090989 DOI: 10.1016/s0378-8741(00)00341-x] [Citation(s) in RCA: 212] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A survey of plants used ethnomedically against cancer was undertaken, using the NAPRALERT database currently maintained by the Program for Collaborative Research in the Pharmaceutical Sciences, College of Pharmacy, University of Illinois-Chicago. We report over 350 species which are reported to be used against cancer and not cited in the work of Jonathan Hartwell, "Plants used against cancer: a survey", including previously unrepresented genera and families.
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Affiliation(s)
- J G Graham
- Program for Collaborative Research in the Pharmaceutical Sciences, College of Pharmacy, 833 South Wood Street, Chicago IL 60612, USA
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