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Cao H, Li Z, Jin T, He S, Liu S, Li L, Wang Y, Gong Y, Wang G, Yang F, Dong W. Maslinic acid supplementation prevents di(2-ethylhexyl) phthalate-induced apoptosis via PRDX6 in peritubular myoid cells of Chinese forest musk deer. J Environ Sci (China) 2024; 143:47-59. [PMID: 38644023 DOI: 10.1016/j.jes.2023.07.034] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/25/2023] [Accepted: 07/25/2023] [Indexed: 04/23/2024]
Abstract
Chinese forest musk deer (FMD), an endangered species, have exhibited low reproductive rates even in captivity due to stress conditions. Investigation revealed the presence of di(2-ethylhexyl) phthalate (DEHP), an environmental endocrine disruptor, in the serum and skin of captive FMDs. Feeding FMDs with maslinic acid (MA) has been observed to alleviate the stress response and improve reproductive rates, although the precise molecular mechanisms remain unclear. Therefore, this study aims to investigate the molecular mechanisms underlying the alleviation of DEHP-induced oxidative stress and cell apoptosis in primary peritubular myoid cells (PMCs) through MA intake. Primary PMCs were isolated and exposed to DEHP in vitro. The results demonstrated that DEHP significantly suppressed antioxidant levels and promoted cell apoptosis in primary PMCs. Moreover, interfering with the expression of PRDX6 was found to induce excessive reactive oxygen species (ROS) production and cell apoptosis in primary PMCs. Supplementation with MA significantly upregulated the expression of PRDX6, thereby attenuating DEHP-induced oxidative stress and cell apoptosis in primary PMCs. These findings provide a theoretical foundation for mitigating stress levels and enhancing reproductive capacity of in captive FMDs.
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Affiliation(s)
- Heran Cao
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China
| | - Zhenpeng Li
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Shaanxi Qiyuan-Times Agri-Tech Development Co. Ltd., Shaanxi 725000, China
| | - Tianqi Jin
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China
| | - Shuyang He
- College of Forestry, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China
| | - Shujuan Liu
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China
| | - Long Li
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China
| | - Yang Wang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China; Shaanxi Qiyuan-Times Agri-Tech Development Co. Ltd., Shaanxi 725000, China
| | - Ye Gong
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Shaanxi Qiyuan-Times Agri-Tech Development Co. Ltd., Shaanxi 725000, China
| | - Gang Wang
- Shaanxi Qiyuan-Times Agri-Tech Development Co. Ltd., Shaanxi 725000, China
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China.
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Shaanxi 712100, China; Biology Research Centre of Qin-Mountains Wildlife, Northwest A&F University, Shaanxi 712100, China
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Yang K, Wang SB, Pei D, Pu LM, Huang XY. Effective separation of maslinic acid and oleanolic acid from olive pomace using high-speed shear off-line coupled with high-speed countercurrent chromatography and their antibacterial activity test. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1236:124069. [PMID: 38442634 DOI: 10.1016/j.jchromb.2024.124069] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/10/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024]
Abstract
In this work, a high-speed shear extraction off-line coupling high-speed countercurrent chromatography method was developed to separate maslinic acid and oleanolic acid from olive pomace. To improve extraction efficiency, the polar disparity between maslinic acid and oleanolic acid necessitated the concurrent utilization of both polar and non-polar solvents during high-speed shear extraction. Then, the high-speed shear extraction was directly feed to high-speed countercurrent chromatography for subsequently separation. A total of 250 min were needed to complete the extraction and separation process. This yielded two molecules from 3.3 g of defatted olive pomace: 7.2 mg of 93.8 % pure maslinic acid and 2.3 mg of 90.1 % pure oleanolic acid, both determined by HPLC at 210 nm. Furthermore, the compounds exhibited inhibitory activity against Escherichia coli and Staphylococcus aureus. At a concentration of 100 μg/mL, its efficacy in inhibiting hyaluronidase was comparable to that of the standard drug indomethacin. Compared with the conventional separation method, this coupled technique reduced the whole time due to the direct injection of sample extraction solution. This technique provides a useful approach for the separation of natural products with significant polarity differences.
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Affiliation(s)
- Kun Yang
- College of Science, Gansu Agricultural University, Lanzhou 730000, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Sheng-Bing Wang
- College of Science, Gansu Agricultural University, Lanzhou 730000, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Dong Pei
- Yunnan Olive Health Industry Innovation Research and Development Co., Ltd, Lijiang 674100, China
| | - Lu-Mei Pu
- College of Science, Gansu Agricultural University, Lanzhou 730000, China.
| | - Xin-Yi Huang
- College of Science, Gansu Agricultural University, Lanzhou 730000, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China.
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Yan R, Liu L, Huang X, Quan ZS, Shen QK, Guo HY. Bioactivities and Structure-Activity Relationships of Maslinic Acid Derivatives: A Review. Chem Biodivers 2024; 21:e202301327. [PMID: 38108648 DOI: 10.1002/cbdv.202301327] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/04/2023] [Accepted: 12/15/2023] [Indexed: 12/19/2023]
Abstract
Maslinic acid has a variety of biological activities, such as anti-tumor, hypoglycemic, anti-inflammatory, and anti-parasitic. In order to enhance the biological activity of maslinic acid, scholars have carried out a lot of structural modifications, and found some more valuable maslinic acid derivatives. In this paper, the structural modification, biological activity, and structure-activity relationship of maslinic acid were reviewed, providing references for the development of maslinic acid.
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Affiliation(s)
- Rui Yan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Luguang Liu
- Department of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong, P. R. China
| | - Xing Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
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Shirai T, Myoenzono K, Kawai E, Yamauchi Y, Suzuki K, Maeda S, Takagi H, Takemasa T. Effects of maslinic acid supplementation on exercise-induced inflammation and oxidative stress in water polo athletes: A randomized, double-blind, crossover, and placebo-controlled trial. J Int Soc Sports Nutr 2023; 20:2239196. [PMID: 37498159 PMCID: PMC10375926 DOI: 10.1080/15502783.2023.2239196] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 02/12/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND Olive fruit is rich in bioactive pentacyclic triterpenoids, primarily maslinic acid (MA). Previous studies have demonstrated that MA exhibits anti-inflammatory and anti-oxidative effects; however, it is unclear whether MA intake during training inhibits perceptual fatigue and muscle soreness in athletes. This study analyzed the effects of MA supplementation during athletic training on perceptual fatigue and muscle soreness. METHODS This randomized, double-blind, cross-over, and placebo-controlled trial involved 12 young, healthy male water polo athletes. After daily training for seven days, they ingested either olive fruit extract, containing 60 mg/day MA, or a placebo. We measured perceptual fatigue and muscle soreness during the intervention using a visual analog scale and inflammatory and oxidative stress-related proteins. RESULTS Perceptual fatigue and muscle soreness and the area under the curve during the training period were significantly lower (main effect of MA; P < 0.05) following MA supplementation than those for the placebo. MA supplementation during training lowered perceptual fatigue and muscle soreness by decreasing inflammatory factors in water polo athletes. Additionally, we examined the detailed mechanism of MA, added the participant's serum to the culture medium at a 10% concentration to determine inflammation- and oxidative stress-related intracellular signals. Skeletal muscle cells (C2C12) cultured with MA-conditioned serum before and after intervention also suppressed expression of inflammation and oxidative stress-related proteins. CONCLUSION These findings suggest that MA intake not only reduces perceptual fatigue and muscle soreness but also decreases inflammation and oxidative stress in the blood and skeletal muscle.
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Affiliation(s)
- Takanaga Shirai
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
- Research Fellow of the Japan Society for the Promotion of Sciences, Chiyoda-Ku, Tokyo, Japan
| | - Kanae Myoenzono
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
- Japan Institute of Sports Sciences, Kita-Ku, Tokyo, Japan
| | - Eiskue Kawai
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
- International Budo University, Faculty of Physical Education, Katsuura, Chiba, Japan
| | - Yuki Yamauchi
- University of Tsukuba, Tsukuba Life Science Innovation Program (T-LSI), Tsukuba, Ibaraki, Japan
- Nippn Corporation, Central Research Laboratory Innovation Center, Atsugi, Kanagawa, Japan
| | - Keito Suzuki
- Nippn Corporation, Central Research Laboratory Innovation Center, Atsugi, Kanagawa, Japan
| | - Seiji Maeda
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
- Waseda University, Faculty of Sport Sciences, Tokosozawa, Japan
| | - Hideki Takagi
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
| | - Tohru Takemasa
- University of Tsukuba, Faculty of Health and Sport Sciences, Tsukuba, Ibaraki, Japan
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Cao X, Du ZR, Liu X, Wang X, Li C, Zhou SN, Liu JR, Xu PY, Ye JL, Zhao Q, Zhao F, Wong KH, Dong XL. Low and high doses of oral maslinic acid protect against Parkinson's disease via distinct gut microbiota-related mechanisms. Biomed Pharmacother 2023; 165:115100. [PMID: 37418977 DOI: 10.1016/j.biopha.2023.115100] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/09/2023] Open
Abstract
The use of oral agents that can modify the gut microbiota (GM) could be a novel preventative or therapeutic option for Parkinson's disease (PD). Maslinic acid (MA), a pentacyclic triterpene acid with GM-dependent biological activities when it is taken orally, has not yet been reported to be effective against PD. The present study found both low and high dose MA treatment significantly prevented dopaminergic neuronal loss in a classical chronic PD mouse model by ameliorating motor functions and improving tyrosine hydroxylase expressions in the substantia nigra pars compacta (SNpc) and increasing dopamine and its metabolite homovanillic acid levels in the striatum. However, the effects of MA in PD mice were not dose-responsive, since similar beneficial effects for low and high doses of MA were observed. Further mechanism studies indicated that low dose MA administration favored probiotic bacterial growth in PD mice, which helped to increase striatal serotonin, 5-hydroxyindole acetic acid, and γ-aminobutyric acid levels. High dose MA treatment did not influence GM composition in PD mice but significantly inhibited neuroinflammation as indicated by reduced levels of tumor necrosis factor alpha and interleukin 1β in the SNpc; moreover, these effects were mainly mediated by microbially-derived acetic acid in the colon. In conclusion, oral MA at different doses protected against PD via distinct mechanisms related to GM. Nevertheless, our study lacked in-depth investigations of the underlying mechanisms involved; future studies will be designed to further delineate the signaling pathways involved in the interactive actions between different doses of MA and GM.
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Affiliation(s)
- Xu Cao
- Department of Neurology, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen, China
| | - Zhong-Rui Du
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China; BioNanotechnology Institute, Ludong University, Yantai, China
| | - Xin Liu
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Xiong Wang
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Chong Li
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China
| | - Sai-Nan Zhou
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jia-Rui Liu
- Department of Neurology, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen, China
| | - Ping-Yi Xu
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jun-Li Ye
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Qing Zhao
- Department of Neurology, Linzi Maternal & Child Health Hospital of Zibo, Zibo, China
| | - Fang Zhao
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China
| | - Ka-Hing Wong
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Xiao-Li Dong
- Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China.
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Li K, Ran X, Zeng Y, Li S, Hu G, Wang X, Li Y, Yang Z, Liu J, Fu S. Maslinic acid alleviates LPS-induced mice mastitis by inhibiting inflammatory response, maintaining the integrity of the blood-milk barrier and regulating intestinal flora. Int Immunopharmacol 2023; 122:110551. [PMID: 37406397 DOI: 10.1016/j.intimp.2023.110551] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023]
Abstract
Mastitis occurs frequently in breastfeeding women and not only affects the women's health but also hinders breastfeeding. Maslinic acid is a type of pentacyclic triterpenoid widely found in olives that has good anti-inflammatory activity. This study aims to discuss the protective function of maslinic acid against mastitis and its underlying mechanism. For this, mice models of mastitis were established using lipopolysaccharide (LPS). The results revealed that maslinic acid reduced the pathological lesions in the mammary gland. In addition, it reduced the generation of pro-inflammatory factors and enzymes (IL-6, IL-1β, TNF-α, iNOS, and COX2) in both mice mammary tissue and mammary epithelial cells. The high-throughput 16S rDNA sequencing of intestinal flora showed that in mice with mastitis, maslinic acid treatment altered β-diversity and regulated microbial structure by increasing the abundance of probiotics such as Enterobacteriaceae and downregulating harmful bacteria such as Streptococcaceae. In addition, maslinic acid protected the blood-milk barrier by maintaining tight-junction protein expression. Furthermore, maslinic acid downregulated mammary inflammation by inhibiting the activation of NLRP3 inflammasome, AKT/NF-κB, and MAPK signaling pathways. Thus, in a mice model of LPS-induced mastitis, maslinic acid can inhibit the inflammatory response, protect the blood-milk barrier, and regulate the constitution of intestinal flora.
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Affiliation(s)
- Kefei Li
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Xin Ran
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Yiruo Zeng
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Shubo Li
- Liaoning Center for Animal Disease Control and Prevention, Liaoning Agricultural Development Service Center, Shenyang 110164, China
| | - Guiqiu Hu
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Xiaoxuan Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Ying Li
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Zhanqing Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Juxiong Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Shoupeng Fu
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, Jilin, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin, China.
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Hasan SN, Banerjee J, Patra S, Kar S, Das S, Samanta S, Wanigasekera D, Pavithra U, Wijesekera K, Napagoda M, Giri B, Dash SK, Bag BG. Self-assembled renewable nano-sized pentacyclic triterpenoid maslinic acids in aqueous medium for anti-leukemic, antibacterial and biocompatibility studies: An insight into targeted proteins-compound interactions based mechanistic pathway prediction through molecular docking. Int J Biol Macromol 2023; 245:125416. [PMID: 37336373 DOI: 10.1016/j.ijbiomac.2023.125416] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/23/2023] [Accepted: 06/13/2023] [Indexed: 06/21/2023]
Abstract
Maslinic acid is a naturally occurring dihydroxy, mono-carboxy bioactive triterpenoid. Its bulky structure was the main hindrance in the path of biological activity. Sodium and potassium salts of nano-sized triterpenoid maslinic acid were prepared from maslinic acid and its self-assembly property was studied in aqueous and aqueous-organic binary liquid mixtures. Morphology of the compounds studied by Field Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), High Resolution Transmission Electron Microscopy (HRTEM), Optical Microscopy, Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffraction (XRD) revealed vesicular morphology of the self-assemblies. Selective cytotoxicity was performed in leukemic (K-562 and KG-1a) and PBMC cells. Among the three self-assemblies (maslinic acid 1, sodium maslinate 2 and potassium maslinate 3), sodium maslinate 2 showed better antileukemic efficacy. Sodium maslinate 2 induced apoptosis in leukemic cells by elevating ROS levels and disrupting the cellular antioxidant system. From the in-silico studies, it was confirmed that 2 interacted with extrinsic and intrinsic apoptotic proteins of leukemic cells and killed those cells by inducing apoptotic pathways. The compounds 1, 2 and 3 showed significant antibacterial efficacy against E.coli strain through binding with several periplasmic membrane fusion protein (MFP) and limiting the efflux system leading to arrestation of antimicrobial resistance.
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Affiliation(s)
- Sk Nurul Hasan
- Department of Chemistry & Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Jhimli Banerjee
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Soumen Patra
- Department of Chemistry & Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Sukhendu Kar
- Department of Chemistry & Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Sayan Das
- Department of Chemistry & Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Sovan Samanta
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Dharani Wanigasekera
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka
| | - Upekshi Pavithra
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka
| | - Kanchana Wijesekera
- Department of Pharmacy, Faculty of Allied Health Sciences, University of Ruhuna, Galle 80 000, Sri Lanka
| | - Mayuri Napagoda
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka
| | - Biplab Giri
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Sandeep Kumar Dash
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India.
| | - Braja Gopal Bag
- Department of Chemistry & Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
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Avcı CB, Sogutlu F, Pinar Ozates N, Shademan B, Gunduz C. Enhanced Anti-cancer Potency Using a Combination of Oleanolic Acid and Maslinic Acid to Control Treatment Resistance in Breast Cancer. Adv Pharm Bull 2023; 13:611-620. [PMID: 37646060 PMCID: PMC10460813 DOI: 10.34172/apb.2023.057] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/11/2022] [Accepted: 09/09/2022] [Indexed: 09/01/2023] Open
Abstract
Purpose The phosphatidylinositol 3-kinase/AKT/mammalian target of rapamycin (PI3K/AKT/ mTOR) pathway is a complex intracellular metabolic pathway that leads to cell growth and tumor proliferation and plays a key role in drug resistance in breast cancer. Therefore, the anti-cancer effects of oleanolic acid (OA), maslinic acid (MA), and their combination were investigated to improve the performance of the treatment strategy. Methods We investigated the effect of OA and MA on cell viability using the WST-1 method. The synergistic effect of the combination was analyzed by isobologram analysis. In addition, the effects of the two compounds, individually and in combination, on apoptosis, autophagy, and the cell cycle were investigated in MCF7 cells. In addition, changes in the expression of PI3K/AKT/mTOR genes involved in apoptosis, cell cycle and metabolism were determined by quantitative RT-PCR. Results MA, OA, and a combination of both caused G0/G1 arrest. Apoptosis also increased in all treated groups. The autophagosomal LC3-II formation was induced 1.74-fold in the MA-treated group and 3.25-fold in the MA-OA-treated group. The combination treatment resulted in increased expression of genes such as GSK3B, PTEN, CDKN1B and FOXO3 and decreased expression of IGF1, PRKCB and AKT3 genes. Conclusion The results showed that the combination of these two substances showed the highest synergistic effect at the lowest dose and using MA-OA caused cancer cells to undergo apoptosis. The use of combination drugs may reduce the resistance of cancer cells to treatment.
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Affiliation(s)
- Cigir Biray Avcı
- Department of Medical Biology, Faculty of Medicine, Ege University, Izmir, Turkey
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Aguilera-Garrido A, Graván P, Navarro-Marchal SA, Medina-O'Donnell M, Parra A, Gálvez-Ruiz MJ, Marchal JA, Galisteo-González F. Maslinic acid solid lipid nanoparticles as hydrophobic anticancer drug carriers: Formulation, in vitro activity and in vivo biodistribution. Biomed Pharmacother 2023; 163:114828. [PMID: 37163783 DOI: 10.1016/j.biopha.2023.114828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/14/2023] [Accepted: 04/30/2023] [Indexed: 05/12/2023] Open
Abstract
Maslinic acid (MA) is a natural pentacyclic triterpenoid with inherent antitumor activity which has a very low solubility in water. MA solid lipid nanoparticles (SLNs) were prepared using Poloxamer 407 and Dicarboxylic acid-Poloxamer 407 as surfactants. Both MA SLNs are monodisperse, with sizes around 130 nm, and stable. Curcumin has been encapsulated in both types of nanoparticles without altering their colloidal properties. Moreover, SLNs greatly improve the solubility of MA and Curcumin. The cytotoxicity of MA and SLNs has been evaluated in BxPC3 human pancreatic cancer cells, MCF7 human breast cancer cells, and in a human fibroblast primary cell line. MA shows higher cytotoxic effect in BxPC3 and MCF7 cancer cells than in human primary fibroblasts. Nile Red loaded MA SLNs are quickly uptaken by BxPC3 and MCF7 cells, and show different cytoplasmic distributions depending on the cellular line. The oral or intravenous administration of MA SLNs in mice does not report any toxic effect, and the intravenous administration of fluorescent MA SLNs shows a homogeneous distribution in mice, without site-specific accumulation. Results suggest the great potential of MA SLNs as nanocarriers of anticancer drugs and as promising targeted theranostic nanodevices.
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Affiliation(s)
- Aixa Aguilera-Garrido
- Department of Applied Physics, University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain
| | - Pablo Graván
- Department of Applied Physics, University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18016, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University of Granada, Granada 18012, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada 18016, Spain; BioFab i3D, Biofabrication and 3D (bio)printing laboratory, University of Granada, Granada 18100, Spain
| | - Saúl A Navarro-Marchal
- Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada 18016, Spain; Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Marta Medina-O'Donnell
- Department of Organic Chemistry, University of Granada, Fuentenueva, s/n, Granada 18071, Spain
| | - Andrés Parra
- Department of Organic Chemistry, University of Granada, Fuentenueva, s/n, Granada 18071, Spain
| | - María José Gálvez-Ruiz
- Department of Applied Physics, University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain
| | - Juan Antonio Marchal
- Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18016, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University of Granada, Granada 18012, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada 18016, Spain; BioFab i3D, Biofabrication and 3D (bio)printing laboratory, University of Granada, Granada 18100, Spain.
| | - Francisco Galisteo-González
- Department of Applied Physics, University of Granada, Fuentenueva, s/n, Granada 18071, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, Fuentenueva, s/n, Granada 18071, Spain.
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Ooi KX, Poo CL, Subramaniam M, Cordell GA, Lim YM. Maslinic acid exerts anticancer effects by targeting cancer hallmarks. Phytomedicine 2023; 110:154631. [PMID: 36621168 DOI: 10.1016/j.phymed.2022.154631] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/03/2022] [Revised: 10/14/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Natural products have long been regarded as a source of anticancer compounds with low toxicity. Evidence revealed that maslinic acid (MA), a widely distributed pentacyclic triterpene in common foodstuffs, exhibited pronounced inhibitory effects against various cancer cell lines. Most cancer cells thrive by acquiring cancer hallmarks, as coined by Hanahan and Weinberg in 2000 and 2011. PURPOSE This represents the first systematic review concerning the anticancer properties of MA as these cancer hallmarks are targeted. It aims to summarize the antineoplastic activities of MA, discuss the diverse mechanisms of action based on the effects of MA exerted on each hallmark. METHODS A comprehensive literature search was conducted using the search terms "maslinic," "cancer," "tumor," and "neoplasm," to retrieve articles from the databases MEDLINE, EMBASE, Web of Science, and Scopus published up to September 2022. Study selection was conducted by three reviewers independently from title and abstract screening until full-text evaluation. Data extraction was done by one reviewer and counterchecked by the second reviewer. RESULTS Of the 330 articles assessed, 40 papers met the inclusion criteria and revealed that MA inhibited 16 different cancer cell types. MA impacted every cancer hallmark by targeting multiple pathways. CONCLUSION This review provides insights regarding the inhibitory effects of MA against various cancers and its remarkable biological properties as a pleiotropic bioactive compound, which encourage further investigations.
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Affiliation(s)
- Kai Xin Ooi
- Centre for Cancer Research, Universiti Tunku Abdul Rahman, Kajang, 43000, Selangor, Malaysia
| | - Chin Long Poo
- Herbal Medicine Research Centre, Institute for Medical Research, Setia Alam, 40170, Selangor, Malaysia
| | - Menaga Subramaniam
- Centre for Cancer Research, Universiti Tunku Abdul Rahman, Kajang, 43000, Selangor, Malaysia
| | - Geoffrey A Cordell
- Natural Products Inc., Evanston, IL, USA; Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Yang Mooi Lim
- Centre for Cancer Research, Universiti Tunku Abdul Rahman, Kajang, 43000, Selangor, Malaysia; Department of Pre-Clinical Sciences, Universiti Tunku Abdul Rahman, Kajang, 43000, Selangor, Malaysia.
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11
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He Y, Wang Y, Yang K, Jiao J, Zhan H, Yang Y, Lv D, Li W, Ding W. Maslinic Acid: A New Compound for the Treatment of Multiple Organ Diseases. Molecules 2022; 27:molecules27248732. [PMID: 36557864 PMCID: PMC9786823 DOI: 10.3390/molecules27248732] [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] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/03/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022]
Abstract
Maslinic acid (MA) is a pentacyclic triterpene acid, which exists in many plants, including olive, and is highly safe for human beings. In recent years, it has been reported that MA has anti-inflammatory, antioxidant, anti-tumor, hypoglycemic, neuroprotective and other biological activities. More and more experimental data has shown that MA has a good therapeutic effect on multiple organ diseases, indicating that it has great clinical application potential. In this paper, the extraction, purification, identification and analysis, biological activity, pharmacokinetics in vivo and molecular mechanism of MA in treating various organ diseases are reviewed. It is hoped to provide a new idea for MA to treat various organ diseases.
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Affiliation(s)
- Yan He
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - Yi Wang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - Kun Yang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - Jia Jiao
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - Hong Zhan
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - Youjun Yang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
| | - De Lv
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Weihong Li
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
- Correspondence: (W.L.); (W.D.); Tel.: +86-28-6180-0219 (W.L. & W.D.); Fax: +86-28-6180-0225 (W.L. & W.D.)
| | - Weijun Ding
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu 611137, China
- Correspondence: (W.L.); (W.D.); Tel.: +86-28-6180-0219 (W.L. & W.D.); Fax: +86-28-6180-0225 (W.L. & W.D.)
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12
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Agatonovic-Kustrin S, Gegechkori V, Morton DW, Tucci J, Mohammed EUR, Ku H. The bioprofiling of antibacterials in olive leaf extracts via thin layer chromatography-effect directed analysis (TLC-EDA). J Pharm Biomed Anal 2022; 219:114916. [PMID: 35809514 DOI: 10.1016/j.jpba.2022.114916] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 11/18/2022]
Abstract
In this study, effect-directed analysis (EDA) (i.e. TLC hyphenated with an in situ MTT (3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide) antimicrobial assay), was used for screening and identification of antimicrobials in olive leaf extract. EDA detected that the same compounds exhibited significant antimicrobial activity against bacterial species of the genera Enterococcus (E. faecalis), Escherichia (E. coli), Streptococcus (S. mutans) and Staphylococcus (S. aureus). Flash chromatography-fractionation was used to isolate antimicrobial compounds in olive leaf extract. The active compounds were identified as maslinic acid and oleanolic acid by comparing RF values of the detected active bands with the standard reference materials, with identity confirmed with NMR and ATR-FTIR spectroscopy. Maslinic and oleanolic acids were tested on the E. faecalis strain (which displayed the highest sensitivity in the MTT assay) to determine their inhibiting concentration 50% (IC50) and minimum bactericidal concentrations.
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Affiliation(s)
- Snezana Agatonovic-Kustrin
- Department of Pharmaceutical and Toxicological Chemistry named after Arzamastsev of the Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119991, Russia; Department of Pharmacy and Biomedical Sciences, La Trobe University, Edwards Rd, Bendigo 3550, Australia.
| | - Vladimir Gegechkori
- Department of Pharmaceutical and Toxicological Chemistry named after Arzamastsev of the Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119991, Russia
| | - David W Morton
- Department of Pharmaceutical and Toxicological Chemistry named after Arzamastsev of the Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119991, Russia; Department of Pharmacy and Biomedical Sciences, La Trobe University, Edwards Rd, Bendigo 3550, Australia
| | - Joseph Tucci
- Department of Pharmacy and Biomedical Sciences, La Trobe University, Edwards Rd, Bendigo 3550, Australia
| | - Ehtesham U R Mohammed
- Department of Pharmacy and Biomedical Sciences, La Trobe University, Edwards Rd, Bendigo 3550, Australia
| | - Heng Ku
- Department of Pharmacy and Biomedical Sciences, La Trobe University, Edwards Rd, Bendigo 3550, Australia
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Li T, Wang H, Dong S, Liang M, Ma J, Jiang X, Yu W. Protective effects of maslinic acid on high fat diet-induced liver injury in mice. Life Sci 2022; 301:120634. [PMID: 35568228 DOI: 10.1016/j.lfs.2022.120634] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 11/30/2022]
Abstract
AIMS Due to the prevalence of high-fat diets and lack of exercise, diseases related to nutrient metabolism such as nonalcoholic fatty liver disease (NAFLD) have become one of the reasons causes endangering human liver health. Maslinic acid (MA) is a pentacyclic triterpenoid acid that is abundant in fruits such as hawthorn and jujube. In this study, we investigated the effect of MA on NAFLD to inform the development of dietary supplements for the treatment and prevention of NAFLD. MATERIALS AND METHODS The NAFLD model was established by feeding mice a high-fat diet (HFD). HEPG2 cells were treated with oleic acid and used as a cell culture model. Testing kits, haematoxylin and eosin staining, oil red O staining, western blotting, and immunofluorescence were performed with in vivo and in vitro experiments. KEY FINDINGS The current study revealed that MA significantly reduced liver weight, body weight and serum lipid levels, and protected against liver steatosis and injury induced by a HFD. MA increased the expression of Beclin1, ATG1, and Bcl-2 mRNA and protein while decreasing the expression of TNF-α and IL-1β, caspase-3 and Bax mRNA and protein. Beclin1, and ATG1 were obviously increased, and the mRNA and protein expression of TNF-α and IL-1β were obviously reduced, the mRNA and protein expression of Caspase-3 and Bax were obviously reduced, and the mRNA and protein expression of Bax were obviously increased by MA. SIGNIFICANCE MA reduces the content of fat in the liver cells of NAFLD mice through lipophagy activitiy and reduces inflammation and apoptosis injury.
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Affiliation(s)
- Tianqi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Huan Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Siyu Dong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Meng Liang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jun Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - XiaoWen Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
| | - Wenhui Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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Abstract
BACKGROUND Diabetic nephropathy has been a devastating complication. Clinically, there is an urgent need for nephroprotective agents to delay the onset of diabetic nephropathy and ameliorate its symptoms. Maslinic acid is a pentacyclic triterpene acid with protective effect on multiple organs against oxidative stress and inflammation. In this research, we hypothesized that maslinic acid protects renal function against diabetic nephropathy. METHODS C57BL/6 J male mice administrated with 50 mg/kg of Streptozocin (STZ) daily were used to establish diabetic mouse model (blood glucose levels > 300 mg/dL). Urinary levels of albumin, total proteins, and creatinine were analyzed by an automatic analyzer. H&E staining was used to evaluate renal damage. qRT-PCR and ELISA were performed to investigate the inflammation and oxidative stress in renal tissues. Western blot was used to assess the activation of AMPK signaling. RESULTS Maslinic acid treatment alleviated the loss of body weight and blood glucose in diabetic mice. Renal structure and function were protected by maslinic acid in diabetic mice. 20 mg/kg maslinic acid treatment for 8 weeks significantly alleviated the oxidative stress and inflammation in the kidney of diabetic rats. Maslinic acid treatment activated the renal AMPK/SIRT1 signaling pathway. CONCLUSION Maslinic acid ameliorates diabetic nephropathy and activates the renal AMPK/SIRT1 signaling pathway.
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Affiliation(s)
- Huijuan Gao
- Department of endocrinology, Daqing Oilfield General Hospital, No. 9 Zhongkang Street, Daqing, 163001, Heilongjiang Province, China
| | - Hong Wu
- Department of endocrinology, Daqing Longnan Hospital, Aiguo Road No. 35, Daqing, 163453, Heilongjiang Province, China.
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15
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Bao H, Sun W, Sun H, Jin Y, Gong X, Chu C, Tong S. Liquid chromatographic study of two structural isomeric pentacyclic triterpenes on reversed-phase stationary phase with hydroxypropyl-β-cyclodextrin as mobile phase additive. J Pharm Biomed Anal 2022; 207:114420. [PMID: 34662781 DOI: 10.1016/j.jpba.2021.114420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/20/2022]
Abstract
Retention behavior of two structural isomeric pentacyclic triterpenic acids, maslinic acid and corosolic acid, was investigated by reverse phase high performance liquid chromatography (HPLC) with hydroxypropyl-β-cyclodextrin (HP-β-CD) as mobile phase additive. Inclusion complexation of maslinic acid, corosolic acid with hydroxypropyl-β-cyclodextrin was evaluated under different concentration of hydroxypropyl-β-cyclodextrin. Apparent formation constant (Km) between methanol and hydroxypropyl-β-cyclodextrin was determined to be 13.82 L mol-1 under 25 °C using UV-spectrophotometry. Two retention models were employed individually for evaluation of inclusion complexation between the two pentacyclic triterpenic acids and hydroxypropyl-β-cyclodextrin. It was found that a higher apparent formation constant (Kf) for corosolic acid and hydroxypropyl-β-cyclodextrin was obtained, 19115 L mol-1, indicating that a greater affinity of hydroxypropyl-β-cyclodextrin with corosolic acid was produced compared with that of maslinic acid, 11775 L mol-1, in the selected mobile phase, and stoichiometric ratio for both of inclusion complex was found to be 1:1. Thermodynamic analysis showed that a negative standard enthalpy change (ΔH) and an entropy change (ΔS*) for analyte transfer were obtained, where ΔH of maslinic acid and corosolic acid was found to be -10.188 kJ mol-1 and -10.650 kJ mol-1, ΔS* of two compounds was -2.092 and -2.180, respectively, indicating that transfer of structural isomers from mobile phase to stationary phase was enthalpically driven. Meanwhile, positive values were obtained for standard enthalpy change and standard entropy change, 136 kJ mol-1 and 274 kJ mol-1 and 536 J mol-1 K-1and 1004 J mol-1 K-1, for inclusion complexation between maslinic acid, corosolic acid and hydroxypropyl-β-cyclodextrin, while negative values were obtained for Gibbs free energy during formation of inclusion complex, -160 kJ mol-1 and -299 kJ mol-1, indicating a spontaneous inclusion reaction happened.
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Affiliation(s)
- Honglei Bao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Wenyu Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Hengmian Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yang Jin
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Xingchu Gong
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310023, China
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China.
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16
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Jing Z, Rui W, Ruihua L, Hao Y, Hengtong F. Review of the Biological Activity of Maslinic Acid. Curr Drug Targets 2021; 22:1496-1506. [PMID: 33687879 DOI: 10.2174/1389450122666210308111159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/21/2020] [Accepted: 12/26/2020] [Indexed: 11/22/2022]
Abstract
Since the discovery of (2α,3β)-2,3-dihydroxyolean-12-en-28-oic acid, also known as maslinic acid, many studies have examined its biological activity, which has been shown to promote health and resist various diseases. This article focuses on previous research on maslinic acid and mainly reviews its reported effects on cardiovascular diseases, neuroprotection, diabetes, cancer, inflammation, and pathogens. Maslinic acid exerts positive effects on both cell and animal models of disease. Although its mechanism of action has not yet been completely elucidated, maslinic acid is feasible as a nutritional additive and has the potential to be developed as a drug.
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Affiliation(s)
- Zhang Jing
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Wang Rui
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Li Ruihua
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yu Hao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Fang Hengtong
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Animal Sciences, Jilin University, Changchun 130062, China
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Huang J, Zang X, Yang W, Yin X, Huang J, Wu S, Hong Y. Pentacyclic triterpene carboxylic acids derivatives integrated piperazine-amino acid complexes for α-glucosidase inhibition in vitro. Bioorg Chem 2021; 115:105212. [PMID: 34333423 DOI: 10.1016/j.bioorg.2021.105212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/30/2022]
Abstract
Eighteen derivatives of pentacyclic triterpene carboxylic acids (Maslinic acid, Corosolic acid and Asiatic acid) have been prepared by coupling the piperazine complex of l-amino acids at the C-28 site of the parent compounds. The α-glucosidase inhibitory activities of the pristine derivatives were evaluated in vitro. The results indicated that the inhibitory activity of some compounds (15e IC50 = 591 μM, 16e IC50 = 423 μM) was closed to that of the reference acarbose (IC50 = 347 μM) in ethanol-water system. In addition, compound 16e (IC50 = 380 μM) showed superior inhibitory activity than acarbose (IC50 = 493 μM) in the measurement system with DMSO as solvent. The comparison of two different solvent systems showed that the derivatives had better α-glucosidase inhibitory activity in the DMSO system than that of in ethanol-water system. Regrettably, all of the as-synthesized derivatives exhibited inferior α-glucosidase inhibitory activities than those of the parent compounds in both test solvent systems. Furthermore, the result of enzyme kinetics demonstrated that the inhibition mechanism of compound 16e was noncompetitive inhibition with the inhibition constant Ki = 552 μM.
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Affiliation(s)
- Jinxiang Huang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xufeng Zang
- Department of Applied Physics, Huzhou University, Huzhou 313000, China
| | - Wuying Yang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiaoli Yin
- Library of Jiangxi Agricultural University, Nanchang 330045, China
| | - Jianping Huang
- College of Science, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Shumin Wu
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yanping Hong
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
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Deng J, Wang H, Mu X, He X, Zhao F, Meng Q. Advances in Research on the Preparation and Biological Activity of Maslinic Acid. Mini Rev Med Chem 2021; 21:79-89. [PMID: 32703128 DOI: 10.2174/1389557520666200722134208] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/26/2019] [Accepted: 04/20/2020] [Indexed: 11/22/2022]
Abstract
Maslinic acid, a pentacyclic triterpene acid, is mainly isolated from olives. Maslinic acid and its derivatives exhibit a broad range of biological properties, such as anti-inflammatory, anticancer, anti-diabetic, antimicrobial, neuroprotective and hepatoprotective activities. In this minireview, the progress of research on maslinic acid with regard to its bioactivities, extraction, semisynthetic preparation and patents is reported. The relationships between the structure and the activity of maslinic acid and its derivatives are also discussed.
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Affiliation(s)
- Jianqiang Deng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Huiyun Wang
- College of Pharmacy, Jining Medical University, Rizhao, 276826, China
| | - Xiaodong Mu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Xiuting He
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Fenglan Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
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Ooi BK, Phang SW, Yong PVC, Chellappan DK, Dua K, Khaw KY, Goh BH, Pusparajah P, Yap WH. In vitro evaluation of the involvement of Nrf2 in maslinic acid-mediated anti-inflammatory effects in atheroma pathogenesis. Life Sci 2021; 278:119658. [PMID: 34048809 DOI: 10.1016/j.lfs.2021.119658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/10/2021] [Accepted: 05/21/2021] [Indexed: 01/07/2023]
Abstract
AIMS Maslinic acid (MA) is a naturally occurring pentacyclic triterpene known to exert cardioprotective effects. This study aims to investigate the involvement of nuclear factor erythroid 2-related factor 2 (Nrf2) for MA-mediated anti-inflammatory effects in atheroma pathogenesis in vitro, including evaluation of tumor necrosis factor-alpha (TNF-α)-induced monocyte recruitment, oxidized low-density lipoprotein (oxLDL)-induced scavenger receptors expression, and nuclear factor-kappa B (NF-ĸB) activity in human umbilical vein endothelial cells (HUVECS) and human acute monocytic leukemia cell line (THP-1) macrophages. MATERIALS AND METHODS An in vitro monocyte recruitment model utilizing THP-1 and HUVECs was developed to evaluate TNF-α-induced monocyte adhesion and trans-endothelial migration. To study the role of Nrf2 for MA-mediated anti-inflammatory effects, Nrf2 inhibitor ML385 was used as the pharmacological inhibitor. The expression of Nrf2, monocyte chemoattractant protein-1 (MCP-1), vascular cell adhesion molecule 1 (VCAM-1), cluster of differentiation 36 (CD36), and scavenger receptor type A (SR-A) in HUVECs and THP-1 macrophages were investigated using RT-qPCR and Western blotting. The NF-κB activity was determined using NF-κB (p65) Transcription Factor Assay Kit. KEY FINDINGS The results showed opposing effects of MA on Nrf2 expression in HUVECs and THP-1 macrophages. MA suppressed TNF-α-induced Nrf2 expression in HUVECs, but enhanced its expression in THP-1 macrophages. Combined effects of MA and ML385 suppressed MCP-1, VCAM-1, and SR-A expressions. Intriguingly, at the protein level, ML385 selectively inhibited SR-A but enhanced CD36 expression. Meanwhile, ML385 further enhanced MA-mediated inhibition of NF-κB activity in HUVECs. This effect, however, was not observed in THP-1 macrophages. SIGNIFICANCE MA attenuated foam cell formation by suppressing VCAM-1, MCP-1, and SR-A expression, as well as NF-κB activity, possibly through Nrf2 inhibition. The involvement of Nrf2 for MA-mediated anti-inflammatory effects however differs between HUVECs and macrophages. Future investigations are warranted for a detailed evaluation of the contributing roles of Nrf2 in foam cells formation.
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Affiliation(s)
- Bee Kee Ooi
- School of Biosciences, Taylor's University, Subang Jaya, Selangor Darul Ehsan 47500, Malaysia
| | - Su Wen Phang
- School of Biosciences, Taylor's University, Subang Jaya, Selangor Darul Ehsan 47500, Malaysia
| | - Phelim Voon Chen Yong
- School of Biosciences, Taylor's University, Subang Jaya, Selangor Darul Ehsan 47500, Malaysia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Kooi-Yeong Khaw
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Priyia Pusparajah
- Medical Health and Translational Research Group, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia.
| | - Wei Hsum Yap
- School of Biosciences, Taylor's University, Subang Jaya, Selangor Darul Ehsan 47500, Malaysia; Centre for Drug Discovery and Molecular Pharmacology (CDDMP), Faculty of Health and Medical Sciences (FHMS), Taylor's University, Subang Jaya 47500, Malaysia.
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Shaik AH, Shaik SR, Shaik AS, Daoud A, Salim M, Kodidhela LD. Analysis of maslinic acid and gallic acid compounds as xanthine oxidase inhibitors in isoprenaline administered myocardial necrotic rats. Saudi J Biol Sci 2021; 28:2575-2580. [PMID: 33911968 PMCID: PMC8071899 DOI: 10.1016/j.sjbs.2021.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE This research designed to analyze the in vivo and in silico ameliorative action of maslinic acid (MA) and gallic acid (GA) on reactive oxygen species generating enzyme xanthine oxidase (XO) in isoprenaline or isoproterenol (ISO) induced myocardial infarcted rats. METHODS Albino Wistar rats were categorized into four groups with eight rats in each group. A dose of 15 mg/kg of MA and GA were pretreated to each MA and GA groups for seven days. A dose of 85 mg/kg of ISO administered to the ISO group along with MA and GA groups except normal group on two consecutive days of pretreatment. All animals sacrificed and the heart tissues were collected for the analysis of XO. The in silico molecular docking analysis of the compounds MA and GA with XO was analyzed by using Gold 3.0.1 software. RESULTS XO enzyme levels were significantly increased in the heart homogenate of ISO administered rats when compared to normal rats. Pretreatment of MA and GA to ISO treated rats significantly brought XO enzyme to the near normal levels which indicate the protective action of MA and GA against myocardial necrosis. The in vivo results were further supported by the in silico molecular docking study which revealed the inhibition of XO enzyme by the formation of enzyme and ligand complex with the compounds MA and GA. CONCLUSION MA and GA compounds manifested the ameliorative effect against ISO administrated myocardial necrosis by inhibiting the free radical generating enzyme XO which is evidenced by both in vivo and in silico studies.
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Affiliation(s)
- Althaf Hussain Shaik
- Central Laboratory, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Shajidha Ruksar Shaik
- Sri Adi Siva Sadguru Alli Saheb Sivaaryula Homeopathy Medical College, Guntakal, A.P., India
| | - Abdul Saheer Shaik
- Sri Ramakrishna Degree and P.G. College, Nandyal, Affiliated to Rayalaseema University, A.P., India
| | - Ali Daoud
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manoharadas Salim
- Central Laboratory, Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Bao H, Sun W, Jin Y, Wang C, Wang X, Sun H, Chu C, Tong S. Preparative separation of structural isomeric pentacyclic triterpenes from Eriobotrya japonica (Thunb.) leaves by high speed countercurrent chromatography with hydroxypropyl-β-cyclodextrin as additive. J Chromatogr A 2021; 1646:462066. [PMID: 33845265 DOI: 10.1016/j.chroma.2021.462066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/04/2021] [Accepted: 03/11/2021] [Indexed: 11/19/2022]
Abstract
Maslinic acid and corosolic acid with high purity were successfully separated from Eriobotrya japonica (Thunb.) leaves by two-step countercurrent chromatographic separation. Two biphasic solvent systems composed of petroleum ether-ethyl acetate-ethanol-water (6:4:5:5, v/v) and petroleum ether-ethyl acetate-ethanol-0.10 mol/L of hydroxypropyl-β-cyclodextrin with pH 7.0 (8:2:3.5:6.5, v/v) were selected according to the partition performance of the main structural isomeric pentacyclic triterpenes. The influences of pH value and concentration of hydroxypropyl-β-cyclodextrin in separation of two isomers were investigated. In first step countercurrent chromatographic separation, a mixture of two target structural isomers (14.12 mg of sample I) was separated from 40.00 mg of a partially purified sample. In second step countercurrent chromatographic separation, maslinic acid and corosolic acid were completely isolated from 12.00 mg of sample I with hydroxypropyl-β-cyclodextrin as aqueous phase additive. The recoveries of the two isomers were over 90%, yielding 5.18 mg of maslinic acid and 5.47 mg of corosolic acid, respectively.
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Affiliation(s)
- Honglei Bao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Wenyu Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yang Jin
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chaoyue Wang
- Jinhua Advanced research Institute, Jinhua 321000, China
| | - Xiang Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Hengmian Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China.
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Lu KW, Yang MD, Peng SF, Chen JC, Chen PY, Chen HY, Lu TJ, Chueh FS, Lien JC, Lai KC, Liu KC, Tai YY. Maslinic Acid Induces DNA Damage and Impairs DNA Repair in Human Cervical Cancer HeLa Cells. Anticancer Res 2020; 40:6869-6877. [PMID: 33288579 DOI: 10.21873/anticanres.14709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Maslinic acid, a natural plant-derived triterpenoid compound, exhibits pharmacological activities, including anti-cancer. In the present study, we investigated the cytotoxic effects of maslinic acid on human cervical cancer HeLa cells in vitro and further investigated the molecular mechanism of maslinic acid-induced DNA damage and repair. MATERIALS AND METHODS Cell viability was measured by flow cytometry. DNA condensation (apoptotic cell death), DNA damage, and DNA fragmentation (DNA ladder) were assayed by DAPI staining, comet assay, and agarose gel electrophoresis, respectively. The expression of DNA damage and repair proteins was assayed by western blotting. RESULTS Maslinic acid decreased total cell viability and induced DNA condensation, damage, and fragmentation in HeLa cells. Furthermore, maslinic acid elevated the levels of p-ATMSer1981, p-ATRSer428, p53, p-p53Ser151, p-H2A.XSer139, BRCA1 and PARP at 30-40 μM. However, it decreased the levels of DNA-PK and MGMT. CONCLUSION Maslinic acid reduced the number of viable HeLa cells by inducing DNA damage and altering the expression of proteins involved in DNA damage and repair.
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Affiliation(s)
- Kung-Wen Lu
- College of Chinese Medicine, School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Mei-Due Yang
- Department of Surgery, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Shu-Fen Peng
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Jaw-Chyun Chen
- Department of Medicinal Botany and Health Applications, Da-Yeh University, Changhua, Taiwan, R.O.C
| | - Po-Yuan Chen
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Hung-Yi Chen
- Department of Pharmacy, China Medical University, Taichung, Taiwan, R.O.C.,Department of Pharmacy, China Medical University Beigang Hospital, Yunlin, Taiwan, R.O.C
| | - Tai-Jung Lu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Fu-Shin Chueh
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan, R.O.C
| | - Jin-Cherng Lien
- Department of Pharmacy, China Medical University, Taichung, Taiwan, R.O.C
| | - Kuang-Chi Lai
- Department of Medical Laboratory Science and Biotechnology, College of Medicine and Life Science, Chung Hwa University of Medical Technology, Tainan, Taiwan, R.O.C
| | - Kuo-Ching Liu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan, R.O.C.
| | - Yin-Ying Tai
- Department of Obstetrics and Gynecology, Chang Bing Show-Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.
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Jain R, Grover A. Maslinic acid differentially exploits the MAPK pathway in estrogen-positive and triple-negative breast cancer to induce mitochondrion-mediated, caspase-independent apoptosis. Apoptosis 2020; 25:817-834. [PMID: 32940876 DOI: 10.1007/s10495-020-01636-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2020] [Indexed: 12/14/2022]
Abstract
Breast cancer accounts for 1.4 million new cases every year. Triple-negative breast cancer (TNBC) is one the leading cause of mortality in developing countries and is associated with early age onset (under 40 years old). Chemotherapy has a poor success rate in patients with TNBC as compared to other types of breast cancers. It is due to the lack of expression of three validated molecular markers for breast cancer, the estrogen and progesterone receptors, and the amplification of HER-2/Neu. Therefore, a clear need exists for a greater understanding of TNBC at all levels and for the development of better therapies. We have studied the anti-tumor effects of a potential drug, maslinic acid, which can be extracted from olive oil industry waste. This natural product showed inhibitory effect at concentrations ranging from 30 to 50 µM within 24 h. It exhibited divergent effects in cell cycle progression for the MCF7 (estrogen positive) cell line when compared with TNBCs like MDA-MB-231 and MDA-MB-468. Also, maslinic acid treatment altered the mitochondrial membrane electrochemical potential and the reactive oxygen species (ROS) levels to cause a caspase-independent programmed cell death. In silico approaches and immunoblotting suggested the involvement of the MAPK pathway explaining the variability in cell cycle progression along with the apoptotic cell death caused by maslinic acid.
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Affiliation(s)
- R Jain
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - A Grover
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India.
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Chama MA, Onyame HA, Fleischer C, Osei-Safo D, Waibel R, Otchere J, Addae-Mensah I, Wilson M. In vitro activities of crude extracts and triterpenoid constituents of Dichapetalum crassifolium Chodat against clinical isolates of Schistosoma haematobium. Heliyon 2020; 6:e04460. [PMID: 32760823 PMCID: PMC7393437 DOI: 10.1016/j.heliyon.2020.e04460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/08/2020] [Accepted: 07/10/2020] [Indexed: 01/03/2023] Open
Abstract
Dichapetalum crassifolium Chodat (Dichapetalaceae) is widely distributed in Africa, Tropical Asia and Latin America. As part of our quest for potential bioactive lead compounds for various neglected tropical diseases, we report the anti-schistosomal potential of the crude extracts and chemical constituents of the stems and roots of Dichapetalum crassifolium. Column chromatography of extracts of the stems and roots led to the isolation and identification of three oleanane-type triterpenoids, friedelan-3β-ol (1), friedelan-3-one (2), and maslinic acid (3); the ursane-type tritepenoid, pomolic acid (4) and the dammarane-type tetracyclic triterpenoids, dichapetalin A (5) and dichapetalin M (6). Dichapetalin A was isolated from only the roots. Isolated compounds were identified by comparison of their physico-chemical and spectral data with published data. The highest in vitro anti-schistosomal activity (IC50) of the crude extracts against clinical isolates of Schistosoma haematobium (Bilharz 1852) was 248.6 μg/ml for the ethyl acetate extract of the root while dichapetalin A gave the highest activity at 151.1 μg/ml among the compounds compared with the 15.5 μg/ml for the standard drug, praziquantel. The rest of the compounds showed activities in the order 177.9, 191.0, and 378.1 μg/ml respectively for mixture of β-sitosterol/stigmasterol, dichapetalin M and friedelan-3-one. The least active extract was the methanol extract of the stem (893.7 μg/ml). The constituents of D. crassifolium showed activity against the S. haematobium that are below praziquantel. It is envisaged that the presence of multiple layers and the minute sizes of pores in the egg shells, may preclude penetration of eggs by the compounds.
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Affiliation(s)
- Mary Anti Chama
- Department of Chemistry, School of Physical and Mathematical Sciences, P.O Box LG 56, University of Ghana, Legon, Ghana
| | - Henry Akwaffo Onyame
- Department of Chemistry, School of Physical and Mathematical Sciences, P.O Box LG 56, University of Ghana, Legon, Ghana
| | - Claudine Fleischer
- Department of Chemistry, School of Physical and Mathematical Sciences, P.O Box LG 56, University of Ghana, Legon, Ghana
| | - Dorcas Osei-Safo
- Department of Chemistry, School of Physical and Mathematical Sciences, P.O Box LG 56, University of Ghana, Legon, Ghana
| | - Reiner Waibel
- Department of Chemistry and Pharmacy, Friederich Alexander University of Erlangen-Nurnberg, Schuhstrasse 19, 91052 Erlangen, Germany
| | - Joseph Otchere
- Parasitology Department, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Ghana
| | - Ivan Addae-Mensah
- Department of Chemistry, School of Physical and Mathematical Sciences, P.O Box LG 56, University of Ghana, Legon, Ghana
| | - Michael Wilson
- Parasitology Department, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Ghana
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Guo Z, Fan D, Liu FY, Kong CY, Tang QZ. [Effects of maslinic acid on isoproterenol-induced myocardial fibrosis in mice]. Zhonghua Yi Xue Za Zhi 2020; 100:1820-1825. [PMID: 32536130 DOI: 10.3760/cma.j.cn112137-20190924-02105] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of maslinic acid (MA) on isoproterenol (ISO)-induced myocardial fibrosis in mice. Methods: ISO was used to induce myocardial fibrosis in adult male C57BL/6 mice, and MA was administered for two weeks to detect the effects of MA on cardiac function and fibrosis. Molecular changes of fibrosis markers and signaling pathways were detected by RT-PCR and western blotting. Phosphate buffer saline (PBS), PBS+SB203580 (p38 MAPK inhibitor), PBS+MA, ISO, ISO+SB203580, ISO+MA were added to the primary cultured rat fibroblasts. Cells were collected after 48 h for subsequent detection. Results: In this study, the mouse model of myocardial fibrosis was successfully established. The left ventricular faction shortening (FS) and maximum rate of rise and maximum rate of fall of pressure in left ventricular chamber (±dp/dt) of the ISO+MA group were significantly higher than those of the ISO group ((35.1±1.8)% vs (28.5±2.6)%, (7 256±153) mmHg/s vs (6 402±240) mmHg/s, (7 156±163) mmHg/s vs (6 319±219) mmHg/s, all P<0.05). The levels of interstitial and perivascular collagen deposition in the ISO+MA group were higher than those in the ISO group (P<0.05), the relative mRNA levels of COL-1, COL-3 and TGF-β in the ISO+MA group were significantly lower than those in the ISO group, with the relative expression levels of 1.70±0.24 vs 3.69±0.34, 1.72±0.56 vs 4.84±0.82, 1.52±0.19 vs 2.64±0.29, respectively (all P<0.05). The phosphorylation levels of p38 MAPK, Smad3 and protein expression level of TGF-β1 in ISO+MA group were lower than those in ISO group (relative expression levels were 1.67±0.35 vs 2.61±0.58, 1.68±0.23 vs 2.52±0.19,1.56±0.15 vs 2.48±0.26, respectively, all P<0.05). The results of in vitro cell experiments showed that the mRNA levels of COL-1, COL-3 and TGF-β in the SB203580 and MA groups were significantly lower than those in the ISO group (relative expression levels were 2.25±0.51, 2.16±0.48 vs 5.29±1.21; 1.58±0.34, 1.69±0.29 vs 4.97±1.32; 1.41±0.31, 1.55±0.38 vs 3.53±0.56, respectively, all P<0.05). The phosphorylation levels of p38 MAPK and Smad3 in the SB203580 MA groups was significantly lower than those in the ISO group, and the protein expression level of TGF-β1 was lower than that in the ISO group (1.81±0.18, 1.77±0.16 vs 2.56±0.32; 1.85±0.21, 1.81±0.17 vs 2.48±0.37; 1.84±0.24, 1.72±0.17 vs 2.52±0.29, all P<0.05). Conclusion: Maslinic acid can inhibit the phosphorylation of p38 MAPK, thereby preventing the canonical TGF-β1/Smads fibrosis signaling pathway to achieve an anti-fibrosis role.
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Affiliation(s)
- Z Guo
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - D Fan
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - F Y Liu
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - C Y Kong
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Q Z Tang
- Department of Cardiology, Renmin Hospital of Wuhan University; Cardiovascular Research Institute of Wuhan University; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
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Liu Y, Lu H, Dong Q, Hao X, Qiao L. Maslinic acid induces anticancer effects in human neuroblastoma cells mediated via apoptosis induction and caspase activation, inhibition of cell migration and invasion and targeting MAPK/ERK signaling pathway. AMB Express 2020; 10:104. [PMID: 32488691 PMCID: PMC7266924 DOI: 10.1186/s13568-020-01035-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 04/10/2020] [Accepted: 05/23/2020] [Indexed: 01/11/2023] Open
Abstract
Maslinic acid is an active member of pentacyclic triterpenes predominantly found in dietary plants including hawthorn berries and olive fruit skins. It has been reported to show immense pharmacological and biological importance including anticancer property. This research was initiated to explore the anticancer potential of maslinic acid against human neuroblastoma. The effects of maslinic acid on cellular apoptosis, ROS generation, cell migration and invasion, caspase activation and targeting MAPK/ERK signaling pathway were investigated. The proliferation percentage was calculated by performing of MTT assay. AO/EB and annexin V/PI staining assays along with western blotting were used to monitor the apoptosis and expressions of apoptosis connected proteins. Spectrofluorometry was used for ROS monitoring. To assess the anti-metastatic effects of maslinic acid on neuroblastoma cells, transwell chambers assays for migration as well as invasion were executed. Western blotting was implemented to establish the expressions of MAPK/ERK signaling pathway connected proteins. Results evidenced remarkable anticancer potential of maslinic acid against human neuroblastoma. It induced dose as well as time reliant anti-proliferative effects against SHSY-5Y cells selectively. The underlying mechanism of cancer suppressive effects of maslinic acid was found to mediate via caspase-dependent apoptosis. Further, ROS production amplified terrifically with exposure of SHSY-5Y to higher maslinic acid doses. Cell migration and invasion in SHSY-5Y cells were both reduced remarkably by maslinic acid. Finally, the activity of proteins associated with MAPK/ERK signaling pathway was found to be significantly reduced with increasing maslinic acid doses. In conclusion, it was observed that maslinic acid possesses a great anti-neuroblastoma potential and could be considered for its chemotherapy provided further investigations are recommended.
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Lee W, Lee H, Lee T, Park EK, Bae JS. Inhibitory functions of maslinic acid, a natural triterpene, on HMGB1-mediated septic responses. Phytomedicine 2020; 69:153200. [PMID: 32163831 DOI: 10.1016/j.phymed.2020.153200] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 11/22/2019] [Revised: 01/22/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Maslinic acid (MA), a natural triterpenoid from Olea europaea, prevents oxidative stress and pro-inflammatory cytokine generation. High mobility group box 1 (HMGB1) has been recognized as a late mediator of sepsis, and the inhibition of the release of HMGB1 and the recovery of vascular barrier integrity have emerged as attractive therapeutic strategies for the management of sepsis. METHODS We tested the hypothesis that MA induces sirtuin 1 and heme oxygenase-1, which inhibit the release of HMGB1 in lipopolysaccharide (LPS)-stimulated cells, thus inhibiting HMGB1-induced hyperpermeability and increasing the survival of septic mice. MA was administered after LPS or HMGB1 challenge, and the antiseptic activity of MA was determined based on permeability, the activation of pro-inflammatory proteins, and the production of markers for tissue injury in HMGB1-activated human umbilical vein endothelial cells (HUVECs) and a cecal ligation and puncture (CLP)-induced sepsis mouse model. RESULTS MA significantly reduced the release of HMGB1 in LPS-activated HUVECs and attenuated the CLP-induced release of HMGB1. Additionally, MA alleviated HMGB1-mediated vascular disruption and inhibited hyperpermeability in mice, and in vivo analysis revealed that MA reduced sepsis-related mortality and tissue injury. CONCLUSION Taken together, the present results suggest that MA reduced HMGB1 release and septic mortality and thus may be useful in the treatment of sepsis.
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Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea; Aging Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Hayeong Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Taeho Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Eui Kyun Park
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu 41940, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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Jeong SY, Kim J, Park EK, Baek MC, Bae JS. Inhibitory functions of maslinic acid on particulate matter-induced lung injury through TLR4-mTOR-autophagy pathways. Environ Res 2020; 183:109230. [PMID: 32058145 DOI: 10.1016/j.envres.2020.109230] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 12/15/2019] [Revised: 01/30/2020] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
Particulate matter (PM), the collection of all liquid and solid particles suspended in air, includes both organic and inorganic particles, many of which are health-hazards. PM particles with a diameter equal to or less than 2.5 μm (PM2.5) is a form of air pollutant that causes significant lung damage when inhaled. Maslinic acid (MA) prevents oxidative stress and pro-inflammatory cytokine generation, but there is little information available regarding its role in PM-induced lung injury. Therefore, the purpose of this study was to determine the protective activity of MA against PM2.5-induced lung injury. The mice were divided into seven groups (n = 10 each): a mock control group, an MA control (0.8 mg/kg mouse body weight) group, an opted PM2.5 produced from diesel (10 mg/kg mouse body weight) group, a diesel PM2.5+MA (0.2, 0.4, 0.6, and 0.8 mg/kg mouse body weight) groups. Mice were treated with MA via tail-vein injection 30 min after the intratracheal instillation of a diesel PM2.5. Changes in the wet/dry weight ratio of the lung tissue, total protein/total cell and lymphocyte counts, inflammatory cytokines in the bronchoalveolar lavage fluid (BALF), vascular permeability, and histology were monitored in diesel PM2.5-treated mice. The results showed that MA reduced pathological lung injury, the wet/dry weight ratio of the lung tissue, and hyperpermeability caused by diesel PM2.5. MA also inhibited diesel PM2.5-induced myeloperoxidase (MPO) activity in the lung tissue, decreased the levels of diesel PM2.5-induced inflammatory cytokines, including tumor necrosis factor (TNF)-α and interleukin (IL)-1β, reduced nitric oxide (NO) and total protein in the BALF, and effectively attenuated diesel PM2.5-induced increases in the number of lymphocytes in the BALF. In addition, MA increased the protein phosphorylation of the mammalian target of rapamycin (mTOR) and dramatically suppressed diesel PM2.5-stimulated expression of toll-like receptor 4 (TLR4), MyD88, and the autophagy-related proteins LC3 II and Beclin 1. In conclusion, these findings indicate that MA has a critical anti-inflammatory effect due to its ability to regulate both the TLR4-MyD88 and mTOR-autophagy pathways and may thus be a potential therapeutic agent against diesel PM2.5-induced lung injury.
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Affiliation(s)
- So Yeon Jeong
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jaehong Kim
- Department of Biochemistry, College of Medicine, Gachon University, Incheon, 21999, Republic of Korea
| | - Eui Kyun Park
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea
| | - Moon-Chang Baek
- Department of Molecular Medicine, CMRI, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Wee HN, Neo SY, Singh D, Yew HC, Qiu ZY, Tsai XRC, How SY, Yip KYC, Tan CH, Koh HL. Effects of Vitex trifolia L. leaf extracts and phytoconstituents on cytokine production in human U937 macrophages. BMC Complement Med Ther 2020; 20:91. [PMID: 32188443 PMCID: PMC7081688 DOI: 10.1186/s12906-020-02884-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 03/06/2020] [Indexed: 12/15/2022] Open
Abstract
Background Dysregulation of pro-inflammatory cytokines such as tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) form the basis of immune-mediated inflammatory diseases. Vitex trifolia L. is a medicinal plant growing in countries such as China, India, Australia and Singapore. Its dried ripe fruits are documented in Traditional Chinese Medicine to treat ailments like rhinitis and dizziness. Its leaves are used traditionally to treat inflammation-related conditions like rheumatic pain. Objective This study aimed to investigate the effects of V. trifolia leaf extracts prepared by different extraction methods (Soxhlet, ultrasonication, and maceration) in various solvents on cytokine production in human U937 macrophages, and identify phytoconstituents from the most active leaf extract. Methods Fresh leaves of V. trifolia were extracted using Soxhlet, ultrasonication, and maceration in hexane, dichloromethane, methanol, ethanol or water. Each extract was evaluated for its effects on TNF-α and IL-1β cytokine production by enzyme-linked immunosorbent assay in lipopolysaccharide-stimulated human U937 macrophages. The most active extract was analyzed and further purified by different chemical and spectroscopic techniques. Results Amongst 14 different leaf extracts investigated, extracts prepared by ultrasonication in dichloromethane and maceration in ethanol were most active in inhibiting TNF-α and IL-1β production in human U937 macrophages. Further purification led to the isolation of artemetin, casticin, vitexilactone and maslinic acid, and their effects on TNF-α and IL-1β production were evaluated. We report for the first time that artemetin suppressed TNF-α and IL-1β production. Gas chromatography-mass spectrometry analyses revealed the presence of eight other compounds. To the best of our knowledge, this is the first report of butylated hydroxytoluene, 2,4-di-tert-butylphenol, campesterol and maslinic acid in V. trifolia leaf extracts. Conclusions In conclusion, leaf extracts of V. trifolia obtained using different solvents and extraction methods were successfully investigated for their effects on cytokine production in human U937 macrophages. The findings provide scientific evidence for the traditional use of V. trifolia leaves (a sustainable resource) and highlight the importance of conservation of medicinal plants as resources for drug discovery. Our results together with others suggest further investigation on V. trifolia and constituents to develop novel treatment strategies in immune-mediated inflammatory conditions is warranted.
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Affiliation(s)
- Hai-Ning Wee
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Soek-Ying Neo
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore.
| | - Deepika Singh
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Hui-Chuing Yew
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Zhi-Yu Qiu
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Xin-Rong Cheryl Tsai
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Sin-Yi How
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Keng-Yan Caleb Yip
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Chay-Hoon Tan
- Department of Pharmacology, Yong Loo Lin School of Medicine, 16 Medical Drive, Block MD3, #04-01S, Singapore, 117600, Singapore
| | - Hwee-Ling Koh
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore.
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Kahnt M, Loesche A, Serbian I, Hoenke S, Fischer L, Al-Harrasi A, Csuk R. The cytotoxicity of oleanane derived aminocarboxamides depends on their aminoalkyl substituents. Steroids 2019; 149:108422. [PMID: 31175922 DOI: 10.1016/j.steroids.2019.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 12/24/2022]
Abstract
Several oligo-methylene diamine derived carboxamides of oleanolic and maslinic acid have been prepared, and substitutions of the terminal primary amine as well as variations of the length of alkyl chain of the diamine moiety were made. Biological evaluation of their cytotoxic activity was performed using photometric sulforhodamin B assays employing a panel of different human cancer cell lines. These experiments showed most of the carboxamides to be cytotoxic with EC50 values below 10 µM. Prolongation of the alkyl chain length initially reduced EC50 values to a minimum, but a decrease in cytotoxicity was observed for longer alkyl chains. Variation of substituents at the terminal nitrogen atom, however, did not influence EC50 values at all. Noteworthy results were obtained particularly for compounds 4, 6 and 23 as indicated by EC50 values lower than 2 µM, and in case of a maslinic derivative 23 even an increased tumor/non-tumor cell selectivity was observed. These compounds were further investigated using fluorescence microscopy and flow cytometry analysis, which revealed 6 to show indications of apoptosis.
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Affiliation(s)
- Michael Kahnt
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Anne Loesche
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Immo Serbian
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Sophie Hoenke
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Lucie Fischer
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Ahmed Al-Harrasi
- University of Nizwa, Natural and Medical Sciences Research Center, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
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31
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Lai KC, Peng SF, Liu CC, Huang JY, Kuo JY, Cheng ZY, Wu RSC, Lin CC, Chen JK, Chung JG. Maslinic Acid Enhances Immune Responses in Leukemic Mice Through Macrophage Phagocytosis and Natural Killer Cell Activities In Vivo. In Vivo 2019; 33:65-73. [PMID: 30587604 DOI: 10.21873/invivo.11440] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/26/2018] [Accepted: 10/02/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND/AIM Maslinic acid (MA), a pentacyclic triterpene extracted from wax-like coatings of olives, has been shown to reduce cancer cell number through induction of autophagy and apoptosis in many human cancer cells including human leukemia HL-60 cells. In the present study, we investigated whether or not MA affects immune responses in a leukemia mouse model. MATERIALS AND METHODS WEHI-3 cells were intraperitonealIy (i.p.) injected into normal BALB/c mice to develop leukemia. Mice were then treated by i.p. injection with MA at different doses (0, 8, 16 and 32 mg/kg) for 2 weeks. After treatment, all animals were weighed and blood, liver and spleen tissues were weighed. Blood or spleen both were used for determination of cell markers or phagocytosis, natural killer (NK) cell activities and T- and B-cell proliferation, respectively, by using a flow cytometric assay. RESULTS MA did not significantly affect body, liver, and spleen weights. However, MA increased markers of T-cells (at 16 mg/kg treatment) and monocytes (at 32 mg/kg treatment), but reduced B-cell markers (at 8 mg/kg treatment); MA did not significantly affect cell marker of macrophages. Furthermore, MA increased phagocytosis by macrophages from peripheral blood mononuclear cells and peritoneal cavity at 32 mg/kg treatment and increased NK cell activity at target cell:splenocyte ratio of 25:1 but did not affect B- and T-cell proliferation. CONCLUSION MA increased immune responses by enhancing macrophage phagocytosis and NK cell activities in leukemic mice.
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Affiliation(s)
- Kuang-Chi Lai
- Department of Medical Laboratory Science and Biotechnology, College of Medicine and Life Science, Chung Hwa University of Medical Technology, Tainan, Taiwan, R.O.C.,Department of Surgery, China Medical University Beigang Hospital, Beigang, Taiwan, R.O.C
| | - Shu-Fen Peng
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Chia-Chi Liu
- Department of Biochemical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan, R.O.C.,Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C
| | - Jye-Yu Huang
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Jung-Yu Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Zheng-Yu Cheng
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Rick Sai-Chuen Wu
- Department of Anesthesiology, China Medical University Hospital, Taichung, Taiwan, R.O.C.,Department of Anesthesiology, China Medical University, Taichung, Taiwan, R.O.C
| | - Chin-Chung Lin
- Department of Chinese Medicine, Feng-Yuan Hospital, Ministry of Health and Welfare, Executive Yuan, Taichung, Taiwan, R.O.C.,General Education Center, Central Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C
| | - Jr-Kai Chen
- Department of Orthopaedics, Chang Bing Show-Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.
| | - Jing-Gung Chung
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C. .,Department of Biotechnology, Asia University, Taichung, Taiwan, R.O.C
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Liu YL, Kong CY, Song P, Zhou H, Zhao XS, Tang QZ. Maslinic acid protects against pressure overload-induced cardiac hypertrophy in mice. J Pharmacol Sci 2018; 138:116-22. [PMID: 30389277 DOI: 10.1016/j.jphs.2018.08.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 08/07/2018] [Accepted: 08/27/2018] [Indexed: 12/15/2022] Open
Abstract
Cardiac hypertrophy is characterized by myocyte hypertrophy, accumulation of cardiac collagen, and reactivation of fetal genes. Maslinic acid (MA) is a pentacyclic triterpene with abundance in olive fruit skin and possesses a number of pharmacological actions. However, its effect on pressure overload-induced cardiac hypertrophy remains unknown. Here, we were to investigate the protective effect of MA on cardiac hypertrophy and fibrosis. C57 mice were subjected to aortic banding (AB) or sham surgery. One day after surgery, all the mice were orally given MA (20 mg/kg) or vehicle for the following four weeks. MA could protect against pressure overload-induced cardiac hypertrophy and cardiac fibrosis, as indicated by decreased heart weight/tibia length, and cardiomyocytes cell area and hypertrophic and fibrotic markers. MA treatment also improved cardiac function in mice with AB surgery, as assessed by echocardiographic and hemodynamic analysis. MA reduced phosphorylation of protein kinase B and extracellular regulated protein kinases in the hypertrophic hearts. MA could decrease cardiomyocyte hypertrophy, and inhibit the activation of AKT and ERK signaling pathway in vitro. In conclusion, we found that MA protected against cardiac hypertrophy. MA has the potential to become a therapeutic drug for cardiac hypertrophy.
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Ben Nejma A, Znati M, Daich A, Othman M, Lawson AM, Ben Jannet H. Design and semisynthesis of new herbicide as 1,2,3-triazole derivatives of the natural maslinic acid. Steroids 2018; 138:102-107. [PMID: 30016641 DOI: 10.1016/j.steroids.2018.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 07/08/2018] [Accepted: 07/10/2018] [Indexed: 01/11/2023]
Abstract
Interesting biological activities (anti-inflammatory, anticancer, antiviral, antioxidant, antidiabetic…) have been reported for maslinic acid (MA) and MA-based compounds. In continuation of our previous work on MA, herbicide potential of Tunisian plant extracts and 1,4-triazolyl derivatives of MA, we now wish to report semisynthesis of new MA-based triazole hybrid compounds with herbicide potential. These compounds were synthesized through Cu-catalyzed azide-alkyne cycloaddition (CuAAC) under microwave irradiation conditions between propargylated MA and a series of phthalimide azides. Here, the first partner of CuAAC reaction (propargylated MA) resulted from propargylation of C-28 carboxylic acid group of isolated MA from the well-known Mediterranean plant Olea europaea L. (Oleaceae). So far, phthalimide azide derivatives were achieved by trapping of N-acyliminium ion, in-situ generated under catalytic condition of Bi(OTf)3, by aromatic nucleophiles. The cycloaddition reaction afforded regiospecifically 1,4-disubstituted triazoles in good yields. The latter hybrid compounds were shown to exhibit a high inhibition potential of seed germination. This constitutes the first step in development of potent herbicides since one of the final semisynthesized structures can serve as a promising lead candidate for further studies.
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Affiliation(s)
- Aymen Ben Nejma
- Normandie Univ, France; UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France; Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019 Monastir, Tunisia
| | - Mansour Znati
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019 Monastir, Tunisia
| | - Adam Daich
- Normandie Univ, France; UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
| | - Mohamed Othman
- Normandie Univ, France; UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
| | - Ata Martin Lawson
- Normandie Univ, France; UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France.
| | - Hichem Ben Jannet
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019 Monastir, Tunisia
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34
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Wang YY, Diao BZ, Zhong LH, Lu BL, Cheng Y, Yu L, Zhu LY. Maslinic acid protects against lipopolysaccharide/d-galactosamine-induced acute liver injury in mice. Microb Pathog 2018; 119:49-53. [PMID: 29627448 DOI: 10.1016/j.micpath.2018.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 02/07/2023]
Abstract
Acute liver injury is a life-threatening syndrome that often caused by hepatocyte damage. In this study, we investigated the protective effects of maslinic acid (MA) on lipopolysaccharide (LPS)/d-galactosamine (D-gal)-induced acute liver injury and clarified its mechanism. Mice acute liver injury model was induced by given LPS and D-gal and MA was given intraperitoneally 1 h before LPS and D-gal. Our results showed that MA protected against liver injury by attenuating liver histopathologic changes, serum AST and ALT levels. The increased inflammatory cytokines TNF-α and IL-6 in serum and liver tissues were also inhibited by MA. The level of MDA and the activity of MPO in liver tissues were up-regulated by LPS/D-gal and dose-dependently inhibited by MA. Furthermore, MA attenuated hepatic NF-κB protein expression and increased hepatic Nrf2 and HO-1 protein expression. Taken together, MA offers a protective role against LPS/D-gal-induced liver injury through suppressing NF-κB and activating Nrf2 signaling pathways.
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Affiliation(s)
- Yuan-Yuan Wang
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Bao-Zhong Diao
- Department of Pharmaceutical Preparations, Liaocheng People's Hospital and Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong 252000, China
| | - Li-Hua Zhong
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Bao-Ling Lu
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yu Cheng
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Lei Yu
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China.
| | - Li-Ying Zhu
- Department of Infectious Disease, The Forth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China.
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Pozo OJ, Pujadas M, Gleeson SB, Mesa-García MD, Pastor A, Kotronoulas A, Fitó M, Covas MI, Navarro JRF, Espejo JA, Sanchez-Rodriguez E, Marchal R, Calleja MA, de la Torre R. Liquid chromatography tandem mass spectrometric determination of triterpenes in human fluids: Evaluation of markers of dietary intake of olive oil and metabolic disposition of oleanolic acid and maslinic acid in humans. Anal Chim Acta 2017; 990:84-95. [PMID: 29029746 DOI: 10.1016/j.aca.2017.07.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/15/2017] [Accepted: 07/17/2017] [Indexed: 12/13/2022]
Abstract
Olive oil is rich in several minor components like maslinic (MA) and oleanolic (OA) acids which have cardioprotective, antitumor, and anti-inflammatory properties. In order to assess the health benefits in humans provided by the olive oil triterpenes (MA and OA), suitable analytical methods able to quantify the low concentrations expected in human fluids are required. In this study, the LC-MS/MS quantification of both OA and MA in plasma and urine has been evaluated. The plasmatic method is based on the direct determination of the analytes. The urinary detection requires more sensitivity which was reached by derivatization with 2-picolylamine. Additionally, the urinary species present after MA and OA ingestion were evaluated by the direct detection of several phase II metabolites previously synthesized. Our results showed that OA is metabolized as both sulfate and glucuronide conjugates whereas MA is mainly excreted as glucuronide. Based on this information, the method for the urinary detection of MA and OA involved an enzymatic hydrolysis. Both plasmatic and urinary methods were validated with suitable precision and accuracy at all tested levels. Required sensitivity was achieved in both matrices. Up to our knowledge, this is the first method able to quantify the low concentration levels of triterpenes present in urine. Samples from two healthy volunteers who received virgin olive oils with different triterpenes content were analyzed. Some preliminary clues on the metabolic disposition of OA and MA after olive oil intake are provided.
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López-Miranda S, Guardiola L, Hernández-Sánchez P, Núñez-Delicado E. Complexation between oleanolic and maslinic acids with native and modified cyclodextrins. Food Chem 2017; 240:139-146. [PMID: 28946254 DOI: 10.1016/j.foodchem.2017.07.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/29/2017] [Accepted: 07/18/2017] [Indexed: 11/25/2022]
Abstract
Oleanolic (OA) and maslinic (MA) acids are two natural triterpenoids with a wide range of beneficial effects for human health. However, their low solubility and permeability make their application in the food, or pharmaceutical, industry difficult. The complexation of OA and MA with α- β-, γ-, HP-α-, HP-β- and HP-γ-CDs, under different pH and temperature conditions, has been studied. Neither α- nor HP-α-CDs formed inclusion complexes, while β-, HP-β- and HP-γ-CDs provided AL type and γ-CDs BS phase solubility diagrams. Complexation was shown to be more stable in the case of MA but complexation efficiency was greater for OA. Increasing the pH and temperature of the complexation media tended to improve the complexation process with triterpenic acids.
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Affiliation(s)
- Santiago López-Miranda
- Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain
| | - Lucía Guardiola
- Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain
| | - Pilar Hernández-Sánchez
- Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain
| | - Estrella Núñez-Delicado
- Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
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Medina-O'Donnell M, Rivas F, Reyes-Zurita FJ, Martinez A, Galisteo-González F, Lupiañez JA, Parra A. Synthesis and in vitro antiproliferative evaluation of PEGylated triterpene acids. Fitoterapia 2017; 120:25-40. [PMID: 28552598 DOI: 10.1016/j.fitote.2017.05.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/12/2017] [Accepted: 05/16/2017] [Indexed: 11/24/2022]
Abstract
A set of PEGylated derivatives of oleanolic and maslinic acids has been semi-synthesised, attaching ethylene glycol, diethylene glycol, triethylene glycol or tetraethylene glycol to the C-28 carboxyl group of these natural triterpenes and some derivatives. Another set of PEGylated derivatives has been semi-synthesised by connecting the same four ethylene glycols to the hydroxyl groups of the A ring of these triterpenic acids, through a carbonate linker, by reaction with trichloromethyl chloroformate. The aqueous solubility of some of these PEGylated derivatives has been compared with that of maslinic acid. The cytotoxic effects of 28 triterpenic PEGylated derivatives in three cancer-cell lines (B16-F10, HT29, and Hep G2) have been assayed. The best results have been achieved with the HT29 cell line, and specifically with the oleanolic acid derivatives having ethylene glycol or tetraethylene glycol attached to the C-28 carboxyl group, which are approximately 27-fold more effective than their natural precursor. Eight PEGylated derivatives have been selected to compare the cytotoxicity results in the HT29 cancer-cell line with those of a non-tumour cell line of the same tissue (IEC-18), four of which were less cytotoxic in the non-tumour cell line. These compounds showed apoptotic effects on treated cells, with percentages of total apoptosis between 20% and 53%, relative to control, at 72h and IC50 concentration, and between 29% to 62%, relative to control, for the same time and IC80 concentration. We have also found that with the treatment of these compounds in HT29 cancer cells, cell-cycle arrest occurred in the G0/G1 phase. Finally, we have also studied changes in mitochondrial membrane potential during apoptosis of HT29 cancer cells, and the results suggest an activation of the extrinsic apoptotic pathway for these compounds.
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Affiliation(s)
- Marta Medina-O'Donnell
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Francisco Rivas
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Fernando J Reyes-Zurita
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Antonio Martinez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | | | - Jose A Lupiañez
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Andres Parra
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
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Sifaoui I, López-Arencibia A, Martín-Navarro CM, Reyes-Batlle M, Mejri M, Valladares B, Lorenzo-Morales J, Abderabba M, Piñero JE. Selective activity of Oleanolic and Maslinic Acids on the Amastigote form of Leishmania Spp. Iran J Pharm Res 2017; 16:1190-1193. [PMID: 29201107 PMCID: PMC5610774] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Leishmaniasis represents a serious threat to the health as one of the most important neglected tropical diseases as designated by the World Health Organization. The disease is endemic in 82 countries, among them Tunisia is an indigenous area for cutaneous Leishmaniasis. In a previous work, two tritepenic acids namely oleanolic and maslinic acids have been isolated from olive leaf extract. In the present paper, the in vitro activity against amastigotes stage of Leishmania (L.) infantum and Leishmania (L.) amazonensis was investigated. Maslinic acid showed the highest activity, against L. amazonensis, with an IC50 of 1.417 ± 0.401 µg/mL and a selectivity index of 9.405. Although, the oleanolic acid exhibit a better activity against L. infantum with an IC50 of 0.999 ± 0.089 µg/mL and selectivity index of 8.111.
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Affiliation(s)
- Ines Sifaoui
- Laboratoire Matériaux-Molécules et Applications, IPEST, B.P 51 2070, La Marsa, University of Carthage, Tunisia. ,University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain.,Corresponding author: E-mail:
| | - Atteneri López-Arencibia
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
| | - Carmen M Martín-Navarro
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
| | - María Reyes-Batlle
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
| | - Mondher Mejri
- Laboratoire Matériaux-Molécules et Applications, IPEST, B.P 51 2070, La Marsa, University of Carthage, Tunisia.
| | - Basilio Valladares
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
| | - Jacob Lorenzo-Morales
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
| | - Manef Abderabba
- Laboratoire Matériaux-Molécules et Applications, IPEST, B.P 51 2070, La Marsa, University of Carthage, Tunisia.
| | - José Enrique Piñero
- University Institute of Tropical Diseases and Public Health, University of La Laguna, Avda Francisco Sanchez s/n, Campus de Anchieta, 38271 La Laguna Tenerife, Canary Islands, Spain
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Sommerwerk S, Heller L, Kerzig C, Kramell AE, Csuk R. Rhodamine B conjugates of triterpenoic acids are cytotoxic mitocans even at nanomolar concentrations. Eur J Med Chem 2017; 127:1-9. [PMID: 28033541 DOI: 10.1016/j.ejmech.2016.12.040] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 11/23/2022]
Abstract
Triterpenoic acids 1-6 exhibited very low or no cytotoxicity at all, but their corresponding 2,3-di-O-acetyl-piperazinyl amides 13-18 showed low EC50 values for several human tumor cell lines. Their cytotoxicity, however, was also high for the non-malignant mouse fibroblasts NIH 3T3. A significant improvement was achieved by preparing the rhodamine B derivatives 19-24. While rhodamine B is not cytotoxic (up to a concentration of 30μM - cut-off of the assay), the triterpenoid piperazine-spacered rhodamine B derivatives were cytotoxic in nano-molar concentration. Compound 24 (a diacetylated maslinic acid derivative) was most toxic for several human tumor cell lines but less toxic for mouse fibroblasts NIH 3T3. Staining and double-staining experiments revealed 24 to act as a mitocan.
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Pérez-Jiménez A, Rufino-Palomares EE, Fernández-Gallego N, Ortuño-Costela MC, Reyes-Zurita FJ, Peragón J, García-Salguero L, Mokhtari K, Medina PP, Lupiáñez JA. Target molecules in 3T3-L1 adipocytes differentiation are regulated by maslinic acid, a natural triterpene from Olea europaea. Phytomedicine 2016; 23:1301-1311. [PMID: 27765349 DOI: 10.1016/j.phymed.2016.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 02/18/2016] [Revised: 06/15/2016] [Accepted: 07/01/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Metabolic syndrome is a set of pathologies among which stand out the obesity, which is related to the lipid droplet accumulation and changes to cellular morphology regulated by several molecules and transcription factors. Maslinic acid (MA) is a natural product with demonstrated pharmacological functions including anti-inflammation, anti-tumor and anti-oxidation, among others. PURPOSE Here we report the effects of MA on the adipogenesis process in 3T3-L1 cells. METHODS Cell viability, glucose uptake, cytoplasmic triglyceride droplets, triglycerides quantification, gene transcription factors such as peroxisome proliferator-activated receptor γ (PPARγ) and adipocyte fatty acid-binding protein (aP2) and intracellular Ca2+ levels were determined in pre-adipocytes and adipocytes of 3T3-L1 cells. RESULTS MA increased glucose uptake. MA also decreased lipid droplets and triglyceride levels, which is in concordance with the down-regulation of PPARγ and aP2. Finally, MA increased the intracellular Ca2+ concentration, which could also be involved in the demonstrated antiadipogenic effect of this triterpene. CONCLUSION MA has been demonstrated as potential antiadipogenic compound in 3T3-L1 cells.
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Affiliation(s)
- Amalia Pérez-Jiménez
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain; Department of i+D+I, Biomaslinic S.L., Polígono Industrial de Escúzar, 18130 Granada, Spain.
| | - Eva E Rufino-Palomares
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain; Pfizer Pharmaceutical-University of Granada-Government of Andalusian, Centre of Genomic and Oncologic Investigation (GENyO), Technological Park of Health Sciences, 18016 Granada, Spain.
| | - Nieves Fernández-Gallego
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - M Carmen Ortuño-Costela
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Fernando J Reyes-Zurita
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Juan Peragón
- Department of Experimental Biology, Biochemistry Section, Faculty of Experimental Biology, University of Jaén, 23071 Jaén, Spain
| | - Leticia García-Salguero
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Khalida Mokhtari
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain; Department of Biology, Faculty of Sciences, Mohammed I University, BP 717 60000 Oujda, Morocco
| | - Pedro P Medina
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain; Pfizer Pharmaceutical-University of Granada-Government of Andalusian, Centre of Genomic and Oncologic Investigation (GENyO), Technological Park of Health Sciences, 18016 Granada, Spain
| | - José A Lupiáñez
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
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Biel S, Mesa MD, de la Torre R, Espejo JA, Fernández-Navarro JR, Fitó M, Sánchez-Rodriguez E, Rosa C, Marchal R, Alche JDD, Expósito M, Brenes M, Gandul B, Calleja MA, Covas MI. The NUTRAOLEOUM Study, a randomized controlled trial, for achieving nutritional added value for olive oils. BMC Complement Altern Med 2016; 16:404. [PMID: 27770787 PMCID: PMC5075414 DOI: 10.1186/s12906-016-1376-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 10/13/2016] [Indexed: 12/04/2022]
Abstract
Background Virgin olive oil, a recognized healthy food, cannot be consumed in great quantities. We aim to assess in humans whether an optimized virgin olive oil with high phenolic content (OVOO, 429 mg/Kg) and a functional one (FOO), both rich in phenolic compounds (429 mg/Kg) and triterpenic acids (389 mg/kg), could provide health benefits additional to those supplied a by a standard virgin olive oil (VOO). Methods/design A randomized, double-blind, crossover, controlled study will be conducted. Healthy volunteers (aged 20 to 50) will be randomized into one of three groups of daily raw olive oil consumption: VOO, OVOO, and FOO (30 mL/d). Olive oils will be administered over 3-week periods preceded by 2-week washout ones. The main outcomes will be markers of lipid and DNA oxidation, inflammation, and vascular damage. A bioavailability and dose-response study will be nested within this sustained- consumption one. It will be made up of 18 volunteers and be performed at two stages after a single dose of each olive oil. Endothelial function and nitric oxide will be assessed at baseline and at 4 h and 6 h after olive oil single dose ingestion. Discussion For the first time the NUTRAOLEUM Study will provide first level evidence on the health benefits in vivo in humans of olive oil triterpenes (oleanolic and maslinic acid) in addition to their bioavailability and disposition. Trial registration The Trial has been registered in ClinicalTrials.gov ID: NCT02520739.
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Rufino-Palomares EE, Reyes-Zurita FJ, García-Salguero L, Peragón J, de la Higuera M, Lupiáñez JA. NADPH production, a growth marker, is stimulated by maslinic acid in gilthead sea bream by increased NADP-IDH and ME expression. Comp Biochem Physiol C Toxicol Pharmacol 2016; 187:32-42. [PMID: 27178358 DOI: 10.1016/j.cbpc.2016.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/24/2016] [Accepted: 05/07/2016] [Indexed: 12/14/2022]
Abstract
NADPH plays a central role in reductive biosynthesis of membrane lipids, maintenance of cell integrity, protein synthesis and redox balance maintenance. Hence, NADPH is involved in the growth and proliferation processes. In addition, it has been shown that changes in nutritional conditions produced changes in NADPH levels and growth rate. Maslinic acid (MA), a pentacyclic triterpene of natural origin, is able to stimulate NADPH production, through regulation of the two oxidative phase dehydrogenases of the pentose phosphate pathway. Our main objective was to study the effects of MA on the kinetic behaviour and on the molecular expression of two NADPH-generating systems, NADP-dependent isocitrate dehydrogenase (NADP-IDH) and malic enzyme (ME), in the liver and white muscle of gilthead sea bream (Sparus aurata). Four groups of 12g of a mean body mass were fed for 210days in a fish farm, with diets containing 0 (control), and 0.1g of MA per kg of diet. Two groups were fed ad libitum (C-AL and MA-AL) and another's two, with restricted diet of 1% of fish weight (C-R and MA-R). Results showed that MA significantly increased the main kinetic parameter of the NADPH-forming enzymes (NADP-IDH and ME). In this sense, specific activity, maximum velocity, catalytic efficiency and activity ratio values were higher in MA conditions than control groups. Moreover, these changes were observed in both feeding regimen, AL and R. Meanwhile, the Michaelis constant changed mainly in groups fed with the MA and restricted diet, these changes are related to the best substrate affinity by enzyme. Moreover, in the Western-blot result, we found that MA increased both protein levels studied, this behaviour being consistent with the regulation of the number of enzyme molecules. All results, indicate that MA, independently of the fed regimen, could potentially be a nutritional additive for fish as it improved the metabolic state of fish, as consequence of increased activity and expression of NADP-IDH and ME enzymes.
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Affiliation(s)
- Eva E Rufino-Palomares
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain.
| | - Fernando J Reyes-Zurita
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain
| | - Leticia García-Salguero
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain
| | - Juan Peragón
- Department of Experimental Biology, Biochemistry and Molecular Biology Section, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
| | - Manuel de la Higuera
- Department of Animal Biology, Faculty of Sciences, University of Granada, Granada, Spain
| | - José A Lupiáñez
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain.
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Sommerwerk S, Heller L, Kuhfs J, Csuk R. Urea derivates of ursolic, oleanolic and maslinic acid induce apoptosis and are selective cytotoxic for several human tumor cell lines. Eur J Med Chem 2016; 119:1-16. [PMID: 27149037 DOI: 10.1016/j.ejmech.2016.04.051] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 01/01/2023]
Abstract
2,3-Di-O-acetyl-maslinic acid benzylamide (5) has previously been shown to possess high cytotoxicity for a variety of human tumor cell lines while being of low cytotoxicity to non-malignant cells. Structural modifications performed on 5 revealed that the presence of these acetyl groups in 5 and the presence of (2β,3β)-configurated centers seems necessary for obtaining high cytotoxicity combined with best selectivity between malignant cells and non-malignant mouse fibroblasts. Compounds carrying an ursane skeleton showed weaker cytotoxicity than their oleanane derived analogs. In addition, the benzylamide function in compound 5 should be replaced by a phenylurea moiety to gain better cytotoxicity while retaining and improving the selectivity. Thus, maslinic acid derived N-[2β,3β-di-O-acetyl-17β-amino-28-norolean-12-en-17-yl]phenylurea (45) gave best results showing EC50 = 0.9 μM (for A2780 ovarian cancer cells) with EC50 > 120 μM for fibroblasts (NIH 3T3) and triggered apoptosis while caspase-3 was not activated by this compound.
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Affiliation(s)
- Sven Sommerwerk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - Lucie Heller
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - Julia Kuhfs
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany.
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44
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Sommerwerk S, Heller L, Kuhfs J, Csuk R. Selective killing of cancer cells with triterpenoic acid amides - The substantial role of an aromatic moiety alignment. Eur J Med Chem 2016; 122:452-464. [PMID: 27416552 DOI: 10.1016/j.ejmech.2016.06.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/26/2016] [Accepted: 06/28/2016] [Indexed: 12/29/2022]
Abstract
2,3-Di-O-acetyl-triterpenoic acid derived amides possessing a (2β, 3β) configuration in ring A and two acetyl groups were previously shown to possess high cytotoxicity for human tumor cell lines but to exhibit low cytotoxicity for non-malignant mouse fibroblasts. In this study, augustic acid (1) and 2-epi-corosolic acid (2) were chosen as starting points for the synthesis of analogs. While augustic acid derived 3-quinolinyl amide 9 gave low EC50 values in SRB assays but was cytotoxic for all lines, the isomeric 4-isoquinolinyl amide 21 was very cytotoxic for the tumor cell lines but significantly less cytotoxic for the mouse fibroblasts NIH 3T3. In addition, a triacetylated 4-isoquinolinyl derivative of asiatic acid (28) gave EC50 = 80 nM (for A2780 ovarian cancer cells). As shown by additional experiments (acridine orange/propidium iodide staining, fluorescence spectroscopy and cell cycle investigations) these compounds act mainly by apoptosis.
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Affiliation(s)
- Sven Sommerwerk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle (Saale) Germany
| | - Lucie Heller
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle (Saale) Germany
| | - Julia Kuhfs
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle (Saale) Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle (Saale) Germany.
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45
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Lozano-Mena G, Sánchez-González M, Parra A, Juan ME, Planas JM. Identification of gut-derived metabolites of maslinic acid, a bioactive compound from Olea europaea L. Mol Nutr Food Res 2016; 60:2053-64. [PMID: 27144997 DOI: 10.1002/mnfr.201501060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/27/2016] [Accepted: 03/25/2016] [Indexed: 11/11/2022]
Abstract
SCOPE Maslinic acid has been described to exert a chemopreventive activity in colon cancer. Hereby, we determined maslinic acid and its metabolites in the rat intestine previous oral administration as a first step in elucidating whether this triterpene might be used as a nutraceutical. METHODS AND RESULTS Maslinic acid was orally administered at 1, 2, and 5 mg/kg to male Sprague-Dawley for 2 days. At 24 h after the last administration, the content of the duodenum and jejunum, ileum, cecum, and colon was collected and extracted with methanol 80% prior to LC-APCI-MS analysis. The developed method was validated providing suitable sensitivity (LOQ of 5 nM), good recovery (97.8 ± 3.6%), linear correlation, and appropriate precision (< 9%). Maslinic acid was detected in all the segments with higher concentrations in the distal part of the intestine. LC-APCI-LTQ-ORBITRAP-MS allowed the identification of 11 gut-derived metabolites that were formed by mono-, dihydroxylation, and dehydrogenation reactions. CONCLUSION Maslinic acid undergoes phase I reactions resulting in a majority of monohydroxylated metabolites without the presence of phase II derivatives. The high concentration of maslinic acid achieved in the intestine suggests that it could exert a beneficial effect in the prevention of colon cancer.
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Affiliation(s)
- Glòria Lozano-Mena
- Departament de Bioquímica i Fisiologia and Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona (UB), Barcelona, Spain
| | - Marta Sánchez-González
- Departament de Bioquímica i Fisiologia and Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona (UB), Barcelona, Spain
| | - Andrés Parra
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva s/n, Granada, Spain
| | - M Emília Juan
- Departament de Bioquímica i Fisiologia and Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona (UB), Barcelona, Spain.
| | - Joana M Planas
- Departament de Bioquímica i Fisiologia and Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona (UB), Barcelona, Spain
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46
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Fukumitsu S, Villareal MO, Fujitsuka T, Aida K, Isoda H. Anti-inflammatory and anti-arthritic effects of pentacyclic triterpenoids maslinic acid through NF-κB inactivation. Mol Nutr Food Res 2015; 60:399-409. [PMID: 26499467 DOI: 10.1002/mnfr.201500465] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/10/2015] [Accepted: 10/15/2015] [Indexed: 12/13/2022]
Abstract
SCOPE Consumption of olives (Olea europaea L.), including table olives and oil, is associated with low incidence of inflammation-related diseases. In this study, the effects of maslinic acid (MA), the main constituent of olive pomace, on the expression of genes and proteins involved in inflammatory activity in RAW 264.7 cells were investigated. Furthermore, the effect of MA on carrageenan-induced paw edema and collagen antibody induced arthritis in mice was determined. METHODS AND RESULTS We confirmed the suppressive effects of MA on LPS-induced tumor necrosis factor α production and on the expression of inflammatory response associated genes in RAW 264.7 cells. We also clarified the suppressive effect of MA on LPS-induced nuclear factor-kappa B activation as well as the phosphorylation of IκB-α. Furthermore, MA (200 mg/kg in the edema model or 100 mg/kg in the arthritis model) exerted anti-inflammatory and antiarthritis effects as shown by the suppression of paw edema, arthritis score, inflammatory cells, and destruction of synovium in knee joints. CONCLUSION Olive products containing MA are useful as a new preventive and therapeutic food ingredient for inflammatory and arthritic diseases.
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Affiliation(s)
- Satoshi Fukumitsu
- Nippon Flour Mills Co, Ltd, Central Laboratory, Midorigaoka, Atsugi, Kanagawa, Japan
| | - Myra O Villareal
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Alliance for Research on North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | | | - Kazuhiko Aida
- Nippon Flour Mills Co, Ltd, Central Laboratory, Midorigaoka, Atsugi, Kanagawa, Japan
| | - Hiroko Isoda
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Alliance for Research on North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, Japan
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Nelson AT, Camelio AM, Claussen KR, Cho J, Tremmel L, DiGiovanni J, Siegel D. Synthesis of oxygenated oleanolic and ursolic acid derivatives with anti-inflammatory properties. Bioorg Med Chem Lett 2015; 25:4342-6. [PMID: 26259803 PMCID: PMC4835183 DOI: 10.1016/j.bmcl.2015.07.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/13/2022]
Abstract
The scalable syntheses of four oxygenated triterpenes have been implemented to access substantial quantities of maslinic acid, 3-epi-maslinic acid, corosolic acid, and 3-epi-corosolic acid. Semi-syntheses proceed starting from the natural products oleanolic acid and ursolic acid. Proceeding over five steps, each of the four compounds can be synthesized on the gram scale. Divergent diastereoselective reductions of α-hydroxy ketones provided access to the four targeted diol containing compounds from two precursors of the oleanane or ursane lineage. These compounds were subsequently evaluated for their ability to inhibit inflammatory gene expression in a mouse model of chemically induced skin inflammation. All compounds possessed the ability to inhibit the expression of one or more inflammatory genes induced by 12-O-tetradecanoylphorbol-13 acetate in mouse skin, however, three of the compounds, corosolic acid, 3-epi-corosolic acid and maslinic acid were more effective than the others. The availability of gram quantities will allow further testing of these compounds for potential anti-inflammatory activities as well as cancer chemopreventive activity.
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Affiliation(s)
- Andrew T Nelson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, United States; Department of Chemistry, University of Texas at Austin, United States
| | - Andrew M Camelio
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, United States
| | - Karin R Claussen
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, United States
| | - Jiyoon Cho
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, United States
| | - Lisa Tremmel
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, United States
| | - John DiGiovanni
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, United States
| | - Dionicio Siegel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, United States; Department of Chemistry, University of Texas at Austin, United States
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48
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Martinez A, Perojil A, Rivas F, Parra A, Garcia-Granados A, Fernandez-Vivas A. Biotransformation of oleanolic and maslinic methyl esters by Rhizomucor miehei CECT 2749. Phytochemistry 2015; 117:500-508. [PMID: 26232553 DOI: 10.1016/j.phytochem.2015.07.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 05/15/2015] [Revised: 07/22/2015] [Accepted: 07/27/2015] [Indexed: 05/25/2023]
Abstract
The pentacyclic triterpenoids methyl oleanolate, methyl maslinate, methyl 3β-hydroxyolean-9(11),12-dien-28-oate, and methyl 2α,3β-dihydroxy-12β,13β-epoxyolean-28-oate were biotransformed by Rhizomucor miehei CECT 2749. Microbial transformation of methyl oleanolate produced only a 7β,30-dihydroxylated metabolite with a conjugated 9(11),12-diene system in the C ring. Biotransformation of the substrate with this 9(11),12-diene system gave the same 7β,30-dihydroxylated compound together with a 7β,15α,30-trihydroxyl derivative. The action of this fungus (R. miehei) on methyl maslinate was more varied, isolating metabolites with a 30-hydroxyl group, a 9(11),12-diene system, an 11-oxo group, or an 12-oxo group. Microbial transformation of the substrate with a 12β,13β-epoxy function resulted in the isolation of two metabolites with 12-oxo and 28,13β-olide groups, hydroxylated or not at C-7β, together with a 30-hydroxy-12-oxo derivative. The structures of these derivatives were deduced by extensive and rigorous spectroscopic studies.
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Affiliation(s)
- Antonio Martinez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Alberto Perojil
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Francisco Rivas
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Andres Parra
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Andres Garcia-Granados
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Antonia Fernandez-Vivas
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
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49
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Chouaïb K, Hichri F, Nguir A, Daami-Remadi M, Elie N, Touboul D, Ben Jannet H, Hamza MA. Semi-synthesis of new antimicrobial esters from the natural oleanolic and maslinic acids. Food Chem 2015; 183:8-17. [PMID: 25863603 DOI: 10.1016/j.foodchem.2015.03.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 03/06/2015] [Accepted: 03/08/2015] [Indexed: 10/23/2022]
Abstract
In this article, we report an effective procedure for the selective isolation of oleanolic acid 1 and maslinic acid 2 (3.4 and 8.5mg/g DW, respectively) from pomace olive (Olea europaea L.) using an ultrasonic bath, and the synthesis of a series of new triterpenic acid esters. The compounds were characterized by their spectral data and were evaluated for their antimicrobial activity. Among the compounds tested, those having sulfur and chlorine atoms were found to be antibacterial. They showed activity against two Gram-positive bacteria Staphylococcus aureus and Enterococcus faecalis and two Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa (MICs within a range of 5-25μg/mL). The fungus Penicillium italicum was found to be the most sensitive to both sulfur derivatives: (3β)-3-((thiophene-2-carbonyl)oxy)-olean-12-en-28-oic acid (1a) (IZ=22mm) and (2α,3β-2,3-bis((thiophene-2-carbonyl)oxy)olean-12-en-28-oic acid (2a) (IZ=24mm).
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Affiliation(s)
- Karim Chouaïb
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité. Equipe: Chimie Médicinale et Produits Naturels, Département de Chimie, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia
| | - Fayçal Hichri
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité. Equipe: Chimie Médicinale et Produits Naturels, Département de Chimie, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia
| | - Asma Nguir
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité. Equipe: Chimie Médicinale et Produits Naturels, Département de Chimie, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia
| | - Majda Daami-Remadi
- UR13AGR09, Production Horticole Intégrée au Centre Est Tunisien, Centre Régional des Recherches en Horticulture et Agriculture Biologique de Chott-Mariem, Université de Sousse, 4042 Chott-Mariem, Tunisia
| | - Nicolas Elie
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - David Touboul
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Hichem Ben Jannet
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité. Equipe: Chimie Médicinale et Produits Naturels, Département de Chimie, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia.
| | - M'hamed Ali Hamza
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité. Equipe: Chimie Médicinale et Produits Naturels, Département de Chimie, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia
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Sun M, Tang Y, Ding T, Liu M, Wang X. Investigation of cytochrome P450 inhibitory properties of maslinic acid, a bioactive compound from Olea europaea L., and its structure-activity relationship. Phytomedicine 2015; 22:56-65. [PMID: 25636872 DOI: 10.1016/j.phymed.2014.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 07/04/2014] [Revised: 08/20/2014] [Accepted: 10/15/2014] [Indexed: 06/04/2023]
Abstract
Maslinic acid (MA), the main pentacyclic triterpene of Olea europaea L. fruit, possesses a variety of pharmacological actions, including hypoglycemic, antioxidant, cardioprotective and antitumoral activities. Despite its importance, little is known about its effects on the cytochrome P450 (CYP) activity in both humans and animals. Therefore, the aim of this study was to investigate the effects of MA on the CYP 1A2, 2C9/11, 2D1/6, 2E1 and 3A2/4 activities by human and rat liver microsomes and specific CYP isoforms. In humans, MA only weakly inhibited CYP3A4 activity in human liver microsomes and specific CYP3A4 isoform with IC50 value at 46.1 and 62.3µM, respectively. In rats, MA also exhibited weak inhibition on CYP2C11, CYP2E1 and CYP3A2 activities with IC50 values more than 100µM. Enzyme kinetic studies showed that the MA was not only a competitive inhibitor of CYP3A4 in humans, but also a competitive inhibitor of CYP2C11 and 3A2 in rats, with Ki of 18.4, 98.7 and 66.3µM, respectively. Moreover, the presence of hydroxyl group at C-2 position of triterpenic acid in MA compared with oleanolic acid could magnify its competitive inhibition on human CYP3A4 activity. The relatively high Ki values of MA would have a low potential to cause the possible toxicity and drug interactions involving CYP enzymes, thus suggesting a sufficient safety for its putative use as a nutraceutical taken together with drugs.
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Affiliation(s)
- Min Sun
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Yu Tang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Tonggui Ding
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China; Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX 77030, USA
| | - Xin Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China.
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