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Chaurasia M, Singh R, Sur S, Flora SJS. A review of FDA approved drugs and their formulations for the treatment of breast cancer. Front Pharmacol 2023; 14:1184472. [PMID: 37576816 PMCID: PMC10416257 DOI: 10.3389/fphar.2023.1184472] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 06/23/2023] [Indexed: 08/15/2023] Open
Abstract
Breast cancer is one of the most diagnosed solid cancers globally. Extensive research has been going on for decades to meet the challenges of treating solid tumors with selective compounds. This article aims to summarize the therapeutic agents which are either being used or are currently under approval for use in the treatment or mitigation of breast cancer by the US FDA, to date. A structured search of bibliographic databases for previously published peer-reviewed research papers on registered molecules was explored and data was sorted in terms of various categories of drugs used in first line/adjuvant therapy for different stages of breast cancer. We included more than 300 peer-reviewed papers, including both research and reviews articles, in order to provide readers an useful comprehensive information. A list of 39 drugs are discussed along with their current status, dose protocols, mechanism of action, pharmacokinetics, possible side effects, and marketed formulations. Another interesting aspect of the article included focusing on novel formulations of these drugs which are currently in clinical trials or in the process of approval. This exhaustive review thus shall be a one-stop solution for researchers who are working in the areas of formulation development for these drugs.
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Affiliation(s)
| | | | | | - S. J. S. Flora
- Era College of Pharmacy, Era University, Lucknow, Uttar Pradesh, India
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2
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Liu HM, Cheng MY, Xun MH, Zhao ZW, Zhang Y, Tang W, Cheng J, Ni J, Wang W. Possible Mechanisms of Oxidative Stress-Induced Skin Cellular Senescence, Inflammation, and Cancer and the Therapeutic Potential of Plant Polyphenols. Int J Mol Sci 2023; 24:ijms24043755. [PMID: 36835162 PMCID: PMC9962998 DOI: 10.3390/ijms24043755] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
As the greatest defense organ of the body, the skin is exposed to endogenous and external stressors that produce reactive oxygen species (ROS). When the antioxidant system of the body fails to eliminate ROS, oxidative stress is initiated, which results in skin cellular senescence, inflammation, and cancer. Two main possible mechanisms underlie oxidative stress-induced skin cellular senescence, inflammation, and cancer. One mechanism is that ROS directly degrade biological macromolecules, including proteins, DNA, and lipids, that are essential for cell metabolism, survival, and genetics. Another one is that ROS mediate signaling pathways, such as MAPK, JAK/STAT, PI3K/AKT/mTOR, NF-κB, Nrf2, and SIRT1/FOXO, affecting cytokine release and enzyme expression. As natural antioxidants, plant polyphenols are safe and exhibit a therapeutic potential. We here discuss in detail the therapeutic potential of selected polyphenolic compounds and outline relevant molecular targets. Polyphenols selected here for study according to their structural classification include curcumin, catechins, resveratrol, quercetin, ellagic acid, and procyanidins. Finally, the latest delivery of plant polyphenols to the skin (taking curcumin as an example) and the current status of clinical research are summarized, providing a theoretical foundation for future clinical research and the generation of new pharmaceuticals and cosmetics.
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Affiliation(s)
- Hui-Min Liu
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
- Engineering Research Center of Perfume & Aroma and Cosmetics, Ministry of Education, Shanghai 201418, China
| | - Ming-Yan Cheng
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Meng-Han Xun
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Zhi-Wei Zhao
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yun Zhang
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wei Tang
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jun Cheng
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jia Ni
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wei Wang
- School of Perfume & Aroma and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
- Engineering Research Center of Perfume & Aroma and Cosmetics, Ministry of Education, Shanghai 201418, China
- Correspondence: ; Tel.: +86-18918830550
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3
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Zhu S, Qin W, Liu T, Liu T, Ma H, Hu C, Yue X, Yan Y, Lv Y, Wang Z, Zhao Z, Wang X, Liu Y, Xia Q, Zhang H, Li N. Modified Qing’e Formula protects against UV-induced skin oxidative damage via the activation of Nrf2/ARE defensive pathway. Front Pharmacol 2022; 13:976473. [PMID: 36386207 PMCID: PMC9650274 DOI: 10.3389/fphar.2022.976473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 10/12/2022] [Indexed: 11/24/2022] Open
Abstract
Exposure to ultraviolet (UV) light triggers the rapid generation and accumulation of reactive oxygen species (ROS) in skin cells, which increases oxidative stress damage and leads to photoaging. Nuclear factor E2-related factor 2 (Nrf2) modulates the antioxidant defense of skin cells against environmental factors, especially ultraviolet radiation. Natural products that target Nrf2-regulated antioxidant reactions are promising candidates for anti-photoaging. The aim of this study was to investigate the protective effect of Modified Qing’e Formula (MQEF) on UV-induced skin oxidative damage and its molecular mechanisms. In this study, the photoaging models of human keratinocytes (HaCaT) and ICR mice were established by UV irradiation. In vitro models showed that MQEF displayed potent antioxidant activity, significantly increased cell viability and reduced apoptosis and excess ROS levels. Meanwhile, the knockdown of Nrf2 reversed the antioxidant and anti-apoptotic effects of MQEF. In vivo experiments indicated that MQEF could protect the skin against UV-exposed injury which manifested by water loss, sensitivity, tanning, wrinkling, and breakage of collagen and elastic fibers. The application of MQEF effectively increased the activity of antioxidant enzymes and reduced the content of malondialdehyde (MDA) in mice. In addition, MQEF was able to activate Nrf2 nuclear translocation in mouse skin tissue. In summary, MQEF may attenuate UV-induced photoaging by upregulating Nrf2 expression and enhancing antioxidant damage capacity. MQEF may be a potential candidate to prevent UV-induced photoaging by restoring redox homeostasis.
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Affiliation(s)
- Shan Zhu
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenxiao Qin
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Tao Liu
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Tao Liu
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongfei Ma
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Engineering Research Center of Modern Chinese Medicine Discovery and Preparation Technique, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Cunyu Hu
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaofeng Yue
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yiqi Yan
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yingshuang Lv
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zijing Wang
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhiyue Zhao
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Engineering Research Center of Modern Chinese Medicine Discovery and Preparation Technique, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiang Wang
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Liu
- Tianjin University of Technology, Tianjin, China
| | - Qingmei Xia
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Han Zhang
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Han Zhang, ; Nan Li,
| | - Nan Li
- State Key Laboratory of Component Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Formulation, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Engineering Research Center of Modern Chinese Medicine Discovery and Preparation Technique, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Han Zhang, ; Nan Li,
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Aroua LM, Al-Hakimi AN, Abdulghani MA, Alhag SK. Elaboration of novel urea bearing schiff bases as potent in vitro anticancer candidates with low in vivo acute oral toxicity. MAIN GROUP CHEMISTRY 2022. [DOI: 10.3233/mgc-220019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A novel series of urea Schiff base derivatives were synthesized via the condensation of o-phenylenediamine, naphthyl isocyanate and appropriate aryl aldehyde. The results of the in vitro cytotoxic activities of compounds 5a–h against cancer cells lines PC3, SKOV-3 and HeLa, revealed that almost all compounds exhibited good to moderate activities Compound 5g owing bromine atom at p-position displayed higher activity compared to homolog 5b possessing chlorine atom due to adequate diameter of bromine which is more favourable than chlorine for the inhibition activity. In addition, compound 5h is the best candidate of this series exhibiting excellent activity for three cancer cells lines. Compound 5h demonstrated also an excellent activity with IC50 value of 0.6±0.3μg/mL for prostate cancer cell line PC3 and it is considered more effective than the standard drug doxorubicin Dox (IC50 = 2.6±0.03μg/mL). The most active compound 5h displayed the best activity against ovarian cancer cell line SKOV3 with IC50 = 1.8±0.2μg/mL. This results are higher than clinically used drug Dox (IC50. 2.2±0.02μg/mL). The results of screening activities cytotoxic effect toward cervix cancer cell line HeLa, affirm that compound 5h manifest an activity with IC50 value of 2.2±0.4μg/mL comparable to Dox (IC50. 1.9±0.04μg/mL). In the current study, in vivo acute oral toxicity assessment of urea Schiff base hybrid compounds 5a – h indicated that there was no mortality on treated female mice during 14 days assessment test compared with the vehicle-treated group confirming the safety with LD50 greater than 2000 mg/kg. In the actual study, the results affirmed that compounds 5a–h manifested in vivo no toxicity to saint cells, the compounds 5b, 5g and 5h presented higher anticancer activities against three cancer cells which authorizes promoters to use them as candidate anticancer agents.
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Affiliation(s)
- Lotfi M. Aroua
- Department of Chemistry, College of Science, Qassim University, Campus University, King Abdulaziz Road, Al-Malida, Buraydah, Qassim, Kingdom of Saudi Arabia
- Laboratory of Organic Structural Chemistry & Macromolecules, Department of Chemistry, Faculty of Sciences of Tunis, Tunis El-Manar University, El Manar, Tunis Tunisia
- Carthage University, Department of Chemistry, Faculty of Sciences of Bizerte, Jarzouna, Tunisia
| | - Ahmed N. Al-Hakimi
- Department of Chemistry, College of Science, Qassim University, Campus University, King Abdulaziz Road, Al-Malida, Buraydah, Qassim, Kingdom of Saudi Arabia
- Department of Chemistry, Faculty of Sciences, Ibb University, Ibb, Yemen
| | - Mahfoudh A.M. Abdulghani
- Department of Pharmacology & Toxicology, Unaizah College of Pharmacy, Qassim University, Qassim, Kingdom of Saudi Arabia
| | - Sadeq K. Alhag
- Department of Biology, College of Science and Arts, King Khalid University, Muhayl Asser, Saudi Arabia
- Department of Biology, College of Science, Ibb University, Yemen
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5
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Meng F, Zhang F, Chen Q, Yang M, Yang Y, Li X, Gu W, Yu J. Virtual screening and in vitro experimental verification of LuxS inhibitors from natural products for Lactobacillus reuteri. Biomed Pharmacother 2022; 147:112521. [PMID: 35149360 DOI: 10.1016/j.biopha.2021.112521] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/02/2022] Open
Abstract
The rapid proliferation and colonization of probiotics in the intestines are essential for human health. Quorum sensing (QS) is a communication mechanism among bacteria, which can regulate various bacterial crowd behavior. This study aimed to enhance the viability of Lactobacillus reuteri 1-12 by regulating QS. Herein, we built a database containing 72 natural products (previously reported) that can improve intestinal flora. Virtual screening (VS) was subsequently conducted to screen four potential active compounds. After that, molecular docking was conducted to analyze the binding mode of the four natural products to S-Ribosylhomocysteinase (LuxS). The results showed that norathyriol, mangiferin, baicalein, and kaempferol had good binding ability to LuxS. The validation experiment showed that norathyriol, mangiferin, baicalein, and kaempferol could inhibit the production of autoinducer-2 (AI-2). Moreover, mangiferin significantly increased L. reuteri 1-12 biomass and promoted L. reuteri 1-12 biofilm formation and structure. Besides, only mangiferin inhibited luxS expression, thus increasing L. reuteri 1-12 biomass. This research indicated that mangiferin may be a potential inhibitor of LuxS, promoting the probiotic properties of L. reuteri and human health.
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Affiliation(s)
- Fanying Meng
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China
| | - Fan Zhang
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China
| | - Qiuding Chen
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China
| | - Min Yang
- Kunming Third People's Hospital, 319 Wujing Road, Guandu District, Kunming, Yunnan, China
| | - Yaqin Yang
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China
| | - Xue Li
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China
| | - Wen Gu
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China.
| | - Jie Yu
- Yunnan Key Laboratory of Southern Medicine Utilization, College of Pharmaceutical Science, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Chenggong District, Kunming, Yunnan, China.
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Wang M, Liang Y, Chen K, Wang M, Long X, Liu H, Sun Y, He B. The management of diabetes mellitus by mangiferin: advances and prospects. NANOSCALE 2022; 14:2119-2135. [PMID: 35088781 DOI: 10.1039/d1nr06690k] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Diabetes mellitus has become one of the most challenging public health problems today. There are still various deficiencies that remain in existing therapeutic drugs. With increasing prevalence and mortality rates, more effective therapeutic agents are required for treatment clinically. As a kind of polyphenol and as a natural product, mangiferin has numerous pharmacological and excellent effects. In this review, the underlying mechanisms of mangiferin on diabetes mellitus and complications will be summarized. Moreover, mangiferin belongs to the BSC IV class and the clinical application and development of mangiferin are limited due to its poor aqueous solubility and fat solubility as well as low bioavailability. Our review also elaborated on improving the solubility of mangiferin by changing the dosage form and introduced the existing results, which hope to provide useful reference for mangiferin for further treating diabetes. In conclusion, mangiferin might be a potential adjuvant therapy for the treatment of diabetes mellitus and complications in the future.
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Affiliation(s)
- Mengdi Wang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Yan Liang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Keqi Chen
- Department of Clinical laboratory, Qingdao special servicemen recuperation centre of PLA navy, Qingdao 266021, China
| | - Maolong Wang
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Xuehua Long
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - HongLing Liu
- Department of Pharmacy, Affiliated Hospital of Qingdao University, Qingdao 266000, China.
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Yap KM, Sekar M, Seow LJ, Gan SH, Bonam SR, Mat Rani NNI, Lum PT, Subramaniyan V, Wu YS, Fuloria NK, Fuloria S. Mangifera indica (Mango): A Promising Medicinal Plant for Breast Cancer Therapy and Understanding Its Potential Mechanisms of Action. BREAST CANCER-TARGETS AND THERAPY 2021; 13:471-503. [PMID: 34548817 PMCID: PMC8448164 DOI: 10.2147/bctt.s316667] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022]
Abstract
Globally, breast cancer is the most common cancer type and is one of the most significant causes of deaths in women. To date, multiple clinical interventions have been applied, including surgical resection, radiotherapy, endocrine therapy, targeted therapy and chemotherapy. However, 1) the lack of therapeutic options for metastatic breast cancer, 2) resistance to drug therapy and 3) the lack of more selective therapy for triple-negative breast cancer are some of the major challenges in tackling breast cancer. Given the safe nature of natural products, numerous studies have focused on their anti-cancer potentials. Mangifera indica, commonly known as mango, represents one of the most extensively investigated natural sources. In this review, we provide a comprehensive overview of M. indica extracts (bark, kernel, leaves, peel and pulp) and phytochemicals (mangiferin, norathyriol, gallotannins, gallic acid, pyrogallol, methyl gallate and quercetin) reported for in vitro and in vivo anti-breast cancer activities and their underlying mechanisms based on relevant literature from several scientific databases, including PubMed, Scopus and Google Scholar till date. Overall, the in vitro findings suggest that M. indica extracts and/or phytochemicals inhibit breast cancer cell growth, proliferation, migration and invasion as well as trigger apoptosis and cell cycle arrest. In vivo results demonstrated that there was a reduction in breast tumor xenograft growth. Several potential mechanisms underlying the anti-breast cancer activities have been reported, which include modulation of oxidative status, receptors, signalling pathways, miRNA expression, enzymes and cell cycle regulators. To further explore this medicinal plant against breast cancer, future research directions are addressed. The outcomes of the review revealed that M. indica extracts and their phytochemicals may have potential benefits in the management of breast cancer in women. However, to validate its utility in the creation of innovative and potent therapeutic agents to treat breast cancer, more dedicated research, especially clinical studies are needed to explore the anti-breast cancer potentials of M. indica extracts and their phytochemicals.
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Affiliation(s)
- Kah Min Yap
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, 30450, Perak, Malaysia
| | - Mahendran Sekar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, 30450, Perak, Malaysia
| | - Lay Jing Seow
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, 30450, Perak, Malaysia
| | - Siew Hua Gan
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, 47500, Selangor Darul Ehsan, Malaysia
| | - Srinivasa Reddy Bonam
- Institut National de la Santé et de la Recherche Médicale; Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Thérapeutique, Sorbonne Université, Université de Paris, Paris, France
| | - Nur Najihah Izzati Mat Rani
- Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, 30450, Perak, Malaysia
| | - Pei Teng Lum
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, 30450, Perak, Malaysia
| | | | - Yuan Seng Wu
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor, 42610, Malaysia
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Guo R, Zhao M, Liu H, Su R, Mao Q, Gong L, Cao X, Hao Y. Uncovering the pharmacological mechanisms of Xijiao Dihuang decoction combined with Yinqiao powder in treating influenza viral pneumonia by an integrative pharmacology strategy. Biomed Pharmacother 2021; 141:111676. [PMID: 34126353 DOI: 10.1016/j.biopha.2021.111676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 12/12/2022] Open
Abstract
Xijiao Dihuang decoction combined with Yinqiao powder (XDD-YQP) is a classical combination formula; however, its therapeutic effects in treating influenza viral pneumonia and the pharmacological mechanisms remain unclear. The therapeutic effect of XDD-YQP in influenza viral pneumonia was evaluated in mice. Subsequently, an everted gut sac model coupled with UPLC/Q-TOF MS were used to screen and identify the active compounds of XDD-YQP. Furthermore, network pharmacological analysis was adopted to probe the mechanisms of the active compounds. Lastly, we verified the targets predicted from network pharmacological analysis by differential bioinformatics analysis. Animal experiments showed that XDD-YQP has a therapeutic effect on influenza viral pneumonia. Moreover, 113 active compounds were identified from intestinal absorbed solutions of XDD-YQP. Using network pharmacological analysis, 90 major targets were selected as critical in the treatment of influenza viral pneumonia through 12 relevant pathways. Importantly, the MAPK signaling pathway was found to be closely associated with the other 11 pathways. Moreover, seven key targets, EGFR, FOS, MAPK1, MAP2K1, HRAS, NRAS, and RELA, which are common targets in the MAPK signaling pathway, were investigated. These seven key targets were identified as differentially expressed genes (DEGs) between influenza virus-infected and uninfected individuals. Hence, the seven key targets in the MAPK signaling pathway may play a vital role in the treatment of influenza viral pneumonia with XDD-YQP. This research may offer an integrative pharmacology strategy to clarify the pharmacological mechanisms of traditional Chinese medicines. The results provide a theoretical basis for a broader clinical application of XDD-YQP.
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Affiliation(s)
- Rui Guo
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Mengfan Zhao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Liu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Rina Su
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qin Mao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Leilei Gong
- Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Xu Cao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yu Hao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
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9
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Haque A, Brazeau D, Amin AR. Perspectives on natural compounds in chemoprevention and treatment of cancer: an update with new promising compounds. Eur J Cancer 2021; 149:165-183. [PMID: 33865202 PMCID: PMC8113151 DOI: 10.1016/j.ejca.2021.03.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/04/2021] [Accepted: 03/13/2021] [Indexed: 12/21/2022]
Abstract
Cancer is the second deadliest disease worldwide. Although recent advances applying precision treatments with targeted (molecular and immune) agents are promising, the histological and molecular heterogeneity of cancer cells and huge mutational burdens (intrinsic or acquired after therapy) leading to drug resistance and treatment failure are posing continuous challenges. These recent advances do not negate the need for alternative approaches such as chemoprevention, the pharmacological approach to reverse, suppress or prevent the initial phases of carcinogenesis or the progression of premalignant cells to invasive disease by using non-toxic agents. Although data are limited, the success of several clinical trials in preventing cancer in high-risk populations suggests that chemoprevention is a rational, appealing and viable strategy to prevent carcinogenesis. Particularly among higher-risk groups, the use of safe, non-toxic agents is the utmost consideration because these individuals have not yet developed invasive disease. Natural dietary compounds present in fruits, vegetables and spices are especially attractive for chemoprevention and treatment because of their easy availability, high margin of safety, relatively low cost and widespread human consumption. Hundreds of such compounds have been widely investigated for chemoprevention and treatment in the last few decades. Previously, we reviewed the most widely studied natural compounds and their molecular mechanisms, which were highly exploited by the cancer research community. In the time since our initial review, many promising new compounds have been identified. In this review, we critically review these promising new natural compounds, their molecular targets and mechanisms of anticancer activity that may create novel opportunities for further design and conduct of preclinical and clinical studies.
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Affiliation(s)
- Abedul Haque
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Daniel Brazeau
- Department of Pharmacy Practice, Administration and Research, School of Pharmacy, Marshall University, Huntington, WV, 25701, USA
| | - Arm R Amin
- Department of Pharmaceutical Sciences and Research, School of Pharmacy, Marshall University, Huntington, WV, 25701, USA.
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10
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Gunter NV, Teh SS, Lim YM, Mah SH. Natural Xanthones and Skin Inflammatory Diseases: Multitargeting Mechanisms of Action and Potential Application. Front Pharmacol 2020; 11:594202. [PMID: 33424605 PMCID: PMC7793909 DOI: 10.3389/fphar.2020.594202] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/19/2020] [Indexed: 12/14/2022] Open
Abstract
The pathogenesis of skin inflammatory diseases such as atopic dermatitis, acne, psoriasis, and skin cancers generally involve the generation of oxidative stress and chronic inflammation. Exposure of the skin to external aggressors such as ultraviolet (UV) radiation and xenobiotics induces the generation of reactive oxygen species (ROS) which subsequently activates immune responses and causes immunological aberrations. Hence, antioxidant and anti-inflammatory agents were considered to be potential compounds to treat skin inflammatory diseases. A prime example of such compounds is xanthone (xanthene-9-one), a class of natural compounds that possess a wide range of biological activities including antioxidant, anti-inflammatory, antimicrobial, cytotoxic, and chemotherapeutic effects. Many studies reported various mechanisms of action by xanthones for the treatment of skin inflammatory diseases. These mechanisms of action commonly involve the modulation of various pro-inflammatory cytokines such as interleukin (IL)-1β, IL-6, IL-8, and tumor necrosis factor α (TNF-α), as well as anti-inflammatory cytokines such as IL-10. Other mechanisms of action include the regulation of NF-κB and MAPK signaling pathways, besides immune cell recruitment via modulation of chemokines, activation, and infiltration. Moreover, disease-specific activity contributed by xanthones, such as antibacterial action against Propionibacterium acnes and Staphylococcus epidermidis for acne treatment, and numerous cytotoxic mechanisms involving pro-apoptotic and anti-metastatic effects for skin cancer treatment have been extensively elucidated. Furthermore, xanthones have been reported to modulate pathways responsible for mediating oxidative stress and inflammation such as PPAR, nuclear factor erythroid 2-related factor and prostaglandin cascades. These pathways were also implicated in skin inflammatory diseases. Xanthones including the prenylated α-mangostin (2) and γ-mangostin (3), glucosylated mangiferin (4) and the caged xanthone gambogic acid (8) are potential lead compounds to be further developed into pharmaceutical agents for the treatment of skin inflammatory diseases. Future studies on the structure-activity relationships, molecular mechanisms, and applications of xanthones for the treatment of skin inflammatory diseases are thus highly recommended.
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Affiliation(s)
| | - Soek Sin Teh
- Engineering and Processing Division, Energy and Environment Unit, Malaysian Palm Oil Board, Kajang, Malaysia
| | - Yang Mooi Lim
- Centre for Cancer Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang, Malaysia.,Department of Pre-Clinical Sciences, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang, Malaysia
| | - Siau Hui Mah
- School of Biosciences, Taylor's University, Subang Jaya, Malaysia.,Centre for Drug Discovery and Molecular Pharmacology, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
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Abstract
Polyphenols constitute a diverse array of naturally occurring secondary metabolites found in plants which, when consumed, have been shown to promote human health. Greater consumption may therefore aid in the fight against diseases such as obesity, diabetes, heart disease, cancer, etc. Tree bark is polyphenol-rich and has potential to be used in food supplements. However, it is important to gain insight into the polyphenol profile of different barks to select the material with greatest concentration and diversity. Ultra-performance liquid chromatography (UPLC) was coupled with an ion mobility time-of-flight high-definition/high-resolution mass spectrometer (UPLC-HDMSE) to profile ethanol extracts of three common tree barks (Pinus contorta, Pinus sylvestris, Quercus robur) alongside a commercial reference (Pycnogenol® extracted from Pinus pinaster). Through the use of Progenesis QI informatics software, 35 high scoring components with reported significance to health were tentatively identified across the three bark extracts following broadly the profile of Pycnogenol®. Scots Pine had generally higher compound abundances than in the other two extracts. Oak bark extract showed the lowest abundances but exhibited higher amounts of naringenin and 3-O-methylrosmarinic acid. We conclude that forestry bark waste provides a rich source of extractable polyphenols suitable for use in food supplements and so can valorise this forestry waste stream.
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Cytotoxic Constituents of the Bark of Hypericum roeperianum towards Multidrug-Resistant Cancer Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4314807. [PMID: 33062009 PMCID: PMC7532997 DOI: 10.1155/2020/4314807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 12/24/2022]
Abstract
The global cancer burden remains a serious concern with the alarming incidence of one in eight men and one in eleven women dying in developing countries. This situation is aggravated by the multidrug resistance (MDR) of cancer cells that hampers chemotherapy. In this study, the cytotoxicity of the methanol extract (HRB), fractions (HRBa, HRBb, and HRBa1-5), and compounds from the bark of Hypericum roeperianum (HRB) was evaluated towards a panel of 9 cancer cell lines. The mode of action of the HRB and trichadonic acid (1) was also studied. Column chromatography was applied to isolate the constituents of HRB. The cytotoxicity of botanicals and phytochemicals was evaluated by the resazurin reduction assay (RRA). Caspase-Glo assay was used to evaluate the activity of caspases, and reactive oxygen species (ROS) (H2DCFH-DA) were assessed by flow cytometry. Phytochemicals isolated from HRB were trichadonic acid (1), fridelan-3-one (2), 2-hydroxy-5-methoxyxanthone (3), norathyriol (4), 1,3,5,6-tetrahydroxyxanthone (5), betulinic acid (6), 3′-hydroxymethyl-2′-(4″-hydroxy-3″,5″-dimethoxyphenyl)-5′,6′:5,6-(6,8-dihydroxyxanthone)-1′,4′-dioxane (7), and 3′-hydroxymethyl-2′-(4″-hydroxy-3″,5″-dimethoxyphenyl)-5′,6′:5,6-(xanthone)-1′,4′-dioxane (8). Botanicals HRB, HRBa, HRBa2-4, HRBb, and doxorubicin displayed cytotoxic effects towards the 9 tested cancer cell lines. The recorded IC50 values ranged from 11.43 µg/mL (against the P-glycoprotein (gp)-overexpressing CEM/ADR5000 leukemia cells) to 26.75 µg/mL (against HCT116 (p53+/+) colon adenocarcinoma cells) for the crude extract HRB. Compounds 1, 5, and doxorubicin displayed cytotoxic effects towards the 9 tested cancer cell lines with IC50 values varying from 14.44 µM (against CCRF-CEM leukemia cells) to 44.20 µM (against the resistant HCT116 (p53−/−) cells) for 1 and from 38.46 µM (against CEM/ADR5000 cells) to 112.27 µM (against the resistant HCT116 (p53−/−) cells) for 5. HRB and compound 1 induced apoptosis in CCRF-CEM cells. The apoptotic process was mediated by enhanced ROS production for HRB or via caspases activation and enhanced ROS production for compound 1. This study demonstrated that Hypericum roeperianum is a potential source of cytotoxic phytochemicals such as trichadonic acid and could be further exploited in cancer chemotherapy.
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Garg C, Sharma H, Garg M. Skin photo-protection with phytochemicals against photo-oxidative stress, photo-carcinogenesis, signal transduction pathways and extracellular matrix remodeling-An overview. Ageing Res Rev 2020; 62:101127. [PMID: 32721499 DOI: 10.1016/j.arr.2020.101127] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 07/04/2020] [Accepted: 07/15/2020] [Indexed: 12/19/2022]
Abstract
Excessive exposure of skin to UV radiation triggers the generation of oxidative stress, inflammation, immunosuppression, apoptosis, matrix-metalloproteases production, and DNA mutations leading to the onset of photo ageing and photo-carcinogenesis. At the molecular level, these changes occur via activation of several protein kinases as well as transcription pathways, formation of reactive oxygen species, and release of cytokines, interleukins and prostaglandins together. Current therapies available on the market only provide limited solutions and exhibit several side effects. The present paper provides insight into scientific studies that have elucidated the positive role of phytochemicals in counteracting the UV-induced depletion of antioxidant enzymes, increased lipid peroxidation, inflammation, DNA mutations, increased senescence, dysfunctional apoptosis and immune suppression. The contribution of phytochemicals to the downregulation of expression of oxidative-stress sensitive transcription factors (Nrf2, NF-Kb, AP-1 and p53) and protein kinases (MSK, ERK, JNK, p38 MAPK, p90RSK2 and CaMKs) involved in inflammation, apoptosis, immune suppression, extracellular matrix remodelling, senescence, photo ageing and photo-carcinogenesis, is also discussed. Conclusively, several phytochemicals hold potential for the development of a viable solution against UV irradiation-mediated photo ageing, photo-carcinogenesis and related manifestations.
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da Silva CA, Rosa IA, de Souza TC, Dos Santos MH. Evaluating four modes of extraction to analyze bioactive compounds in Garcinia brasiliensis (bacupari) by high-performance liquid chromatography diode-array detection (HPLC-DAD). Nat Prod Res 2020; 35:4073-4077. [PMID: 31983232 DOI: 10.1080/14786419.2020.1716344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The prior study of the extraction path is fundamental to optimize the required time and to define the most suitable solvent to extract and determine an analyte of interest in a complex sample. This study aimed to evaluate four extraction modes; solvent sequence in Soxhlet equipment (SES), and by maceration (SEM), direct extraction with ethanol by maceration (EEM), and in Soxhlet equipment (EES), and determine Garcinia brasiliensis bioactive compounds using a validated high-performance liquid chromatography diode-array detection (HPLC-DAD) method. Fukugetin, fukugetina-7''-O-β-D-glucoside, norathyriol, guttiferone A, and 7-epiclusianone were identified and quantified with authentic standards. Among all four modes applied to extract the main bioactive. From HPLC profile, it was observed that the highest levels of 7-epiclusianone (344.1 mg/g) and guttiferone A (142.8 mg/g) were found in the N-hexane fraction using SEM mode, whereas the highest levels of fukugetin (44.95 mg/g) and norathyriol (3.95 mg/g dry weight) in the ethyl acetate fraction using SES mode.
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Affiliation(s)
| | - Isael A Rosa
- Instituto de Química, Universidade Federal de Alfenas, Alfenas, Brazil
| | - Thiago C de Souza
- Instituto de Ciências da Natureza, Universidade Federal de Alfenas, Alfenas, Brazil
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Potential of herb-drug / herb interactions between substrates and inhibitors of UGTs derived from herbal medicines. Pharmacol Res 2019; 150:104510. [DOI: 10.1016/j.phrs.2019.104510] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/14/2019] [Accepted: 10/22/2019] [Indexed: 12/15/2022]
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16
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Wang Y, Qin S, Jia J, Huang L, Li F, Jin F, Ren Z, Wang Y. Intestinal Microbiota-Associated Metabolites: Crucial Factors in the Effectiveness of Herbal Medicines and Diet Therapies. Front Physiol 2019; 10:1343. [PMID: 31736775 PMCID: PMC6828839 DOI: 10.3389/fphys.2019.01343] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 10/09/2019] [Indexed: 12/14/2022] Open
Abstract
Although the efficacy of herbal medicines (HMs) and traditional Chinese medicines (TCMs) in human diseases has long been recognized, their development has been hindered in part by a lack of a comprehensive understanding of their mechanisms of action. Indeed, most of the compounds extracted from HMs can be metabolized into specific molecules by host microbiota and affect pharmacokinetics and toxicity. Moreover, HMs modulate the constitution of host intestinal microbiota to maintain a healthy gut ecology. Dietary interventions also show great efficacy in treating some refractory diseases, and the commensal microbiota potentially has significant implications for the high inter-individual differences observed in such responses. Herein, we mainly discuss the contribution of the intestinal microbiota to high inter-individual differences in response to HMs and TCMs, and especially the already known metabolites of the HMs produced by the intestinal microbiota. The contribution of commensal microbiota to the inter-individual differences in response to dietary therapy is also briefly discussed. This review highlights the significance of intestinal microbiota-associated metabolites to the efficiency of HMs and dietary interventions. Our review may help further identify the mechanisms leading to the inter-individual differences in the effectiveness of HM and dietary intervention from the perspective of their interactions with the intestinal microbiota.
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Affiliation(s)
- Yiliang Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
| | - Shurong Qin
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Jiaoyan Jia
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
| | - Lianzhou Huang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Feng Li
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
| | - Fujun Jin
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
| | - Zhe Ren
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
| | - Yifei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
- Key Laboratory of Virology of Guangzhou, Jinan University, Guangzhou, China
- Key Laboratory of Bioengineering Medicine of Guangdong Province, Jinan University, Guangzhou, China
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Miao L, Tian H. Development of ERK1/2 inhibitors as a therapeutic strategy for tumour with MAPK upstream target mutations. J Drug Target 2019; 28:154-165. [PMID: 31340679 DOI: 10.1080/1061186x.2019.1648477] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Extracellular signal-regulated kinases 1 and 2 (ERK1/2) phosphorylate a variety of substrates that play key roles in promoting cell survival and proliferation. Many inhibitors, acting on upstream of the ERK pathway, exhibit excellent antitumor activity. However, drug-resistant tumour cells invariably emerge after their use due to the reactivation of ERK1/2 signalling. ERK1/2 inhibitors have shown clinical efficacy as a therapeutic strategy for the treatment of tumours with mitogen-activated protein kinase (MAPK) upstream target mutations. These inhibitors may be effective against cancers with altered MAPK upstream pathway and may be used as a possible strategy to overcome acquired resistance to MAPK inhibitors. In this review, we describe the mechanism and types of ERK1/2 inhibitors, summarise the current development status of small-molecule ERK1/2 inhibitors, including the preclinical data and clinical study progress, and discuss the future research directions for the application of ERK1/2 inhibitors.
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Affiliation(s)
- Longfei Miao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Hongqi Tian
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
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Garcia AR, Oliveira DMP, Claudia F Amaral A, Jesus JB, Rennó Sodero AC, Souza AMT, Supuran CT, Vermelho AB, Rodrigues IA, Pinheiro AS. Leishmania infantum arginase: biochemical characterization and inhibition by naturally occurring phenolic substances. J Enzyme Inhib Med Chem 2019; 34:1100-1109. [PMID: 31124384 PMCID: PMC6534257 DOI: 10.1080/14756366.2019.1616182] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Inhibition of Leishmania arginase leads to a decrease in parasite growth and infectivity and thus represents an attractive therapeutic strategy. We evaluated the inhibitory potential of selected naturally occurring phenolic substances on Leishmania infantum arginase (ARGLi) and investigated their antileishmanial activity in vivo. ARGLi exhibited a Vmax of 0.28 ± 0.016 mM/min and a Km of 5.1 ± 1.1 mM for L-arginine. The phenylpropanoids rosmarinic acid and caffeic acid (100 µM) showed percentages of inhibition of 71.48 ± 0.85% and 56.98 ± 5.51%, respectively. Moreover, rosmarinic acid and caffeic acid displayed the greatest effects against L. infantum with IC50 values of 57.3 ± 2.65 and 60.8 ± 11 μM for promastigotes, and 7.9 ± 1.7 and 21.9 ± 5.0 µM for intracellular amastigotes, respectively. Only caffeic acid significantly increased nitric oxide production by infected macrophages. Altogether, our results broaden the current spectrum of known arginase inhibitors and revealed promising drug candidates for the therapy of visceral leishmaniasis.
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Affiliation(s)
- Andreza R Garcia
- a Graduate Program in Pharmaceutical Sciences , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Danielle M P Oliveira
- b Department of Biochemistry , Institute of Chemistry, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Ana Claudia F Amaral
- c Department of Natural Products , Farmanguinhos, FIOCRUZ , Rio de Janeiro , Brazil
| | - Jéssica B Jesus
- d Department of Drugs and Medicines , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Ana Carolina Rennó Sodero
- d Department of Drugs and Medicines , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Alessandra M T Souza
- d Department of Drugs and Medicines , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Claudiu T Supuran
- e Neurofarba Department , Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche , Florence , Italy
| | - Alane B Vermelho
- f Department of General Microbiology , Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Igor A Rodrigues
- a Graduate Program in Pharmaceutical Sciences , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil.,g Department of Natural Products and Food , School of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Anderson S Pinheiro
- b Department of Biochemistry , Institute of Chemistry, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
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Dual actions of norathyriol as a new candidate hypouricaemic agent: uricosuric effects and xanthine oxidase inhibition. Eur J Pharmacol 2019; 853:371-380. [DOI: 10.1016/j.ejphar.2019.04.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/11/2019] [Accepted: 04/16/2019] [Indexed: 01/16/2023]
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Xue W, Tian J, Wang XS, Xia J, Wu S. Discovery of potent PTP1B inhibitors via structure-based drug design, synthesis and in vitro bioassay of Norathyriol derivatives. Bioorg Chem 2019; 86:224-234. [PMID: 30716620 DOI: 10.1016/j.bioorg.2019.01.059] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/11/2019] [Accepted: 01/27/2019] [Indexed: 12/11/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) has recently been identified as a potential target of Norathyriol. Unfortunately, Norathyriol is not a potent PTP1B inhibitor, which somewhat hinders its further application. Based on the fact that no study on the relationship of chemical structure and PTP1B inhibitory activity of Norathyriol has been reported so far, we attempted to perform structural optimization so as to improve the potency for PTP1B. Via structure-based drug design (SBDD), a rational strategy based on the binding mode of Norathyriol to PTP1B, we designed 26 derivatives with substitutions at the four phenolic hydroxyl groups of Norathyriol. By chemical synthesis and in vitro bioassay, we identified seven PTP1B inhibitors that were more potent than Norathyriol, of which XWJ24 showed the highest potency (IC50: 0.6 μM). We also found out that XWJ24 was a competitive inhibitor and showed the 4.5-fold selectivity over its close homolog, TC-PTP. Through molecular docking of XWJ24 against PTP1B, we highlighted the essential role of its hydrogen bond with Asp181 for PTP1B inhibition and identified a potential halogen bond with Asp48 that was not observed for Norathyriol. The current data indicate that our SBDD strategy is effective to discover potent PTP1B-targeted Norathyriol derivatives, and XWJ24 is a promising lead compound for further development.
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Affiliation(s)
- Wenjie Xue
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of New Drug Research and Development, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jinlong Tian
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of New Drug Research and Development, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiang Simon Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, Howard University, Washington DC 20059, USA
| | - Jie Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of New Drug Research and Development, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Song Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of New Drug Research and Development, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Guo X, Cheng M, Hu P, Shi Z, Chen S, Liu H, Shi H, Xu Z, Tian X, Huang C. Absorption, Metabolism, and Pharmacokinetics Profiles of Norathyriol, an Aglycone of Mangiferin, in Rats by HPLC-MS/MS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12227-12235. [PMID: 30298742 DOI: 10.1021/acs.jafc.8b03763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Norathyriol, an aglycone of mangiferin, is a bioactive tetrahydroxyxanthone present in mangosteen and many medicinal plants. However, the biological fate of norathyriol in vivo remains unclear. In this study, the absorption and metabolism of norathyriol in rats were evaluated through HPLC-MS/MS. Results showed that norathyriol was well absorbed, as indicated by its absolute bioavailability of 30.4%. Besides, a total of 21 metabolites of norathyriol were identified in rats, including methylated, glucuronidated, sulfated and glycosylated conjugates, which suggested norathyriol underwent extensive phase II metabolism. Among those metabolites, 15 metabolites were also identified in hepatocytes incubated with norathyriol, indicating the presence of hepatic metabolism. Furthermore, glucuronide and sulfate conjugates, rather than their parent compound, were found to be the main forms existing in vivo after administration of norathyriol, as implicated by the great increase of exposure of norathyriol determined after hydrolysis with β-glucuronidase and sulfatase. The information obtained from this study contributes to better understanding of the pharmacological mechanism of norathyriol.
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Affiliation(s)
- Xiaozhen Guo
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Mingcang Cheng
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Pei Hu
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Zhangpeng Shi
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Shuoji Chen
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Huan Liu
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Haoyun Shi
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhou Xu
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Xiaoting Tian
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chenggang Huang
- Shanghai Institute of Material Medica , Chinese Academy of Sciences , Shanghai 201203 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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Tovilovic-Kovacevic G, Krstic-Milosevic D, Vinterhalter B, Toljic M, Perovic V, Trajkovic V, Harhaji-Trajkovic L, Zogovic N. Xanthone-rich extract from Gentiana dinarica transformed roots and its active component norswertianin induce autophagy and ROS-dependent differentiation of human glioblastoma cell line. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 47:151-160. [PMID: 30166100 DOI: 10.1016/j.phymed.2018.03.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 02/07/2018] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Glioblastoma multiforme (GMB) is the most malignant of all brain tumors with poor prognosis. Anticancer potential of xanthones, bioactive compounds found in Gentiana dinarica, is well-documented. Transformation of G. dinarica roots with Agrobacterium rhizogenes provides higher xanthones accumulation, which enables better exploitation of these anticancer compounds. HYPOTHESIS/PURPOSE The aim of this study was to investigate antiglioma effect of three different G. dinarica extracts: E1-derived from untransformed roots, E2-derived from roots transformed using A. rhizogenes strain A4M70GUS, and E3-derived from roots transformed using A. rhizogenes strain 15834/PI. Further, mechanisms involved in anticancer potential of the most potent extract were examined in detail, and its active component was determined. METHODS The cell viability was assessed using MTT and crystal violet test. Cell cycle analysis, the expression of differentiation markers, the levels of autophagy, and oxidative stress were analyzed by flow cytometry. Autophagy and related signaling pathways were assessed by immunoblotting. RESULTS E3, in contrast to E1 and E2, strongly reduced growth of U251 human glioblastoma cells, triggered cell cycle arrest in G2/M phase, changed cellular morphology, and increased expression of markers of differentiated astrocytes (glial fibrillary acidic protein) and neurons (β-tubulin). E3 stimulated autophagy, as demonstrated by enhanced intracellular acidification, increased microtubule-associated light chain 3B (LC3-I) conversion to autophagosome associated LC3-II, and decreased level of selective autophagy target p62. Induction of autophagy was associated with Akt-dependent inhibition of main autophagy suppressor mammalian target of rapamycin (mTOR). Both genetic and pharmacological inhibition of autophagy suppressed the expression of differentiation markers, but had no effect on cell cycle arrest in E3-treated cells. E3 stimulated oxidative stress, and antioxidants vitamin E and N-acetyl cysteine inhibited autophagy and differentiation of E3-treated U251 cells. The most prevalent compound of E3, xanthone aglycone norswertianin, also arrested glioblastoma cell proliferation in G2/M phase and induced glioblastoma cell differentiation through induction of autophagy and oxidative stress. CONCLUSION These results indicate that E3 and its main active component norswertianin may serve as a potential candidate for differentiation therapy of glioblastoma.
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Affiliation(s)
- Gordana Tovilovic-Kovacevic
- Department of Biochemistry, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despot Stefan Blvd 142, 11000 Belgrade, Serbia
| | - Dijana Krstic-Milosevic
- Department of Plant Physiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despot Stefan Blvd 142, 11000 Belgrade, Serbia
| | - Branka Vinterhalter
- Department of Plant Physiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despot Stefan Blvd 142, 11000 Belgrade, Serbia
| | - Mina Toljic
- Genetic Laboratory Department, Obstetrics and Gynecology Clinic "Narodni Front", Street Kraljice Natalije 62, 11000 Belgrade, Serbia
| | - Vladimir Perovic
- Institute for Microbiology and Immunology, School of Medicine, University of Belgrade, Dr Subotic Street 1, 11000 Belgrade, Serbia
| | - Vladimir Trajkovic
- Institute for Microbiology and Immunology, School of Medicine, University of Belgrade, Dr Subotic Street 1, 11000 Belgrade, Serbia
| | - Ljubica Harhaji-Trajkovic
- Department of Neurophysiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despot Stefan Blvd 142, 11000 Belgrade, Serbia.
| | - Nevena Zogovic
- Department of Neurophysiology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despot Stefan Blvd 142, 11000 Belgrade, Serbia.
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23
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Ahn S, Yun H, Han YT. An Improved C-Deglycosylation of Mangiferin to Norathyriol. ORG PREP PROCED INT 2018. [DOI: 10.1080/00304948.2017.1405336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sungwan Ahn
- College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
| | - Hwayoung Yun
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Young Taek Han
- College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
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24
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Gilberg E, Gütschow M, Bajorath J. X-ray Structures of Target–Ligand Complexes Containing Compounds with Assay Interference Potential. J Med Chem 2018; 61:1276-1284. [DOI: 10.1021/acs.jmedchem.7b01780] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Erik Gilberg
- Department
of Life Science Informatics, B-IT, LIMES Program Unit Chemical Biology
and Medicinal Chemistry, Rheinische Friedrich-Wilhelms-Universität, Dahlmannstr. 2, D-53113 Bonn, Germany
- Pharmaceutical
Institute, Rheinische Friedrich-Wilhelms-Universität, An der Immenburg 4, D-53121 Bonn, Germany
| | - Michael Gütschow
- Pharmaceutical
Institute, Rheinische Friedrich-Wilhelms-Universität, An der Immenburg 4, D-53121 Bonn, Germany
| | - Jürgen Bajorath
- Department
of Life Science Informatics, B-IT, LIMES Program Unit Chemical Biology
and Medicinal Chemistry, Rheinische Friedrich-Wilhelms-Universität, Dahlmannstr. 2, D-53113 Bonn, Germany
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25
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Sun D, Zhang CZ, Ran RX, Cao YF, Du Z, Fu ZW, Huang CT, Zhao ZY, Zhang WH, Fang ZZ. In Vitro Comparative Study of the Inhibitory Effects of Mangiferin and Its Aglycone Norathyriol towards UDP-Glucuronosyl Transferase (UGT) Isoforms. Molecules 2017. [PMID: 28621744 PMCID: PMC6152678 DOI: 10.3390/molecules22061008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Mangiferin (MGF), the predominant constituent of extracts of the mango plant Mangifera Indica L., has been investigated extensively because of its remarkable pharmacological effects. In vitro recombinant UGTs-catalyzed glucuronidation of 4-methylumbelliferone (4-MU) was used to investigate the inhibition of mangiferin and aglycone norathyriol towards various isoforms of UGTs in our study, which evaluated the inhibitory capacity of MGF and its aglycone norathyriol (NTR) towards UDP-glucuronosyltransferase (UGT) isoforms. Initial screening experiment showed that deglycosylation of MGF into NTR strongly increased the inhibitory effects towards almost all the tested UGT isoforms at a concentration of 100 μM. Kinetic experiments were performed to further characterize the inhibition of UGT1A3, UGT1A7 and UGT1A9 by NTR. NTR competitively inhibited UGT1A3, UGT1A7 and UGT1A9, with an IC50 value of 8.2, 4.4, and 12.3 μM, and a Ki value of 1.6, 2.0, and 2.8 μM, respectively. In silico docking showed that only NTR could dock into the activity cavity of UGT1A3, UGT1A7 and UGT1A9. The binding free energy of NTR to UGT1A3, 1A7, 1A9 were −7.4, −7.9 and −4.0 kcal/mol, respectively. Based on the inhibition evaluation standard ([I]/Ki < 0.1, low possibility; 0.1 < [I]/Ki < 1, medium possibility; [I]/Ki > 1, high possibility), an in vivo herb–drug interaction between MGF/NTR and drugs mainly undergoing UGT1A3-, UGT1A7- or UGT1A9-catalyzed metabolism might occur when the plasma concentration of NTR is above 1.6, 2.0 and 2.8 μM, respectively.
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Affiliation(s)
- Dan Sun
- College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Chun-Ze Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300121, China.
| | - Rui-Xue Ran
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | - Yun-Feng Cao
- Key Laborotary of Liaoning Tumor Clinical Metabolomics (KLLTCM), Jinzhou 121001, Liaoning, China.
| | - Zuo Du
- Key Laborotary of Liaoning Tumor Clinical Metabolomics (KLLTCM), Jinzhou 121001, Liaoning, China.
- Department of Toxicology, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China.
| | - Zhi-Wei Fu
- Key Laborotary of Liaoning Tumor Clinical Metabolomics (KLLTCM), Jinzhou 121001, Liaoning, China.
- Department of Toxicology, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China.
| | - Chun-Ting Huang
- Key Laborotary of Liaoning Tumor Clinical Metabolomics (KLLTCM), Jinzhou 121001, Liaoning, China.
- Department of Toxicology, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China.
| | - Zhen-Ying Zhao
- Tianjin Union Medical Center, 190 Jieyuan Road, Hongqiao District, Tianjin 300121, China.
| | - Wei-Hua Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300121, China.
| | - Zhong-Ze Fang
- Key Laborotary of Liaoning Tumor Clinical Metabolomics (KLLTCM), Jinzhou 121001, Liaoning, China.
- Department of Toxicology, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China.
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26
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Taiwo BJ, Fatokun AA, Olubiyi OO, Bamigboye-Taiwo OT, van Heerden FR, Wright CW. Identification of compounds with cytotoxic activity from the leaf of the Nigerian medicinal plant, Anacardium occidentale L. (Anacardiaceae). Bioorg Med Chem 2017; 25:2327-2335. [DOI: 10.1016/j.bmc.2017.02.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/11/2017] [Accepted: 02/15/2017] [Indexed: 12/29/2022]
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27
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Tian X, Gao Y, Xu Z, Lian S, Ma Y, Guo X, Hu P, Li Z, Huang C. Pharmacokinetics of mangiferin and its metabolite-Norathyriol, Part 1: Systemic evaluation of hepatic first-pass effect in vitro and in vivo. Biofactors 2016; 42:533-544. [PMID: 27130074 DOI: 10.1002/biof.1291] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 03/21/2016] [Indexed: 12/17/2022]
Abstract
Mangiferin (MGF), a glucoside of xanthone existing in phytomedicines and food, is increasingly attracting attention on diabetes treatment, while the underlying mechanism leading to its low oral bioavailability is unclear. Norathyriol (NTR), an active metabolite with hypoglycemic activity and its exposure after MGF dosing remains unclear. Hence, a rapid and sensitive LC-MS/MS method was established and validated to determine MGF and NTR and applied in the PK study in rats. Correspondingly, the in vitro experiments on temperature-dependent uptake, and MGF metabolism in hepatocyte and enterobacteria samples were performed. Results revealed that hepatic first-pass effect slightly contributed to the poor bioavailability of MGF, based on the MGF exposure in portal vein plasma was nearly similar to that in systemic plasma, and the MGF accumulation in the liver was limited, so was that of NTR. Correspondingly, the in vitro study revealed the MGF uptake was mainly dependent on poor passive transport, possibly leading to its limited hepatic metabolism and accumulation. Moreover, the NTR exposure remained considerably low (Cmax < 3 ng/mL, AUCNTR /AUCMGF < 3%) in plasma after single MGF dosing, corresponding to its tiny proportion (0.1%) of MGF in MGF-incubated enterobacteria samples. However, given the low generation and elimination rates of NTR, NTR might accumulate in plasma and exert effects after repeated MGF dosing, although requires further study. This work is the first systemic study on PK profiles of MGF and NTR in vitro and in vivo, which is important for the interpretation on the poor bioavailability and pharmacodynamics of MGF. © 2016 BioFactors, 42(5):533-544, 2016.
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Affiliation(s)
- Xiaoting Tian
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Yu Gao
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Zhou Xu
- College of life and environmental sciences, Shanghai Normal University, Shanghai, People's Republic of China
| | - Shan Lian
- Department of pharmacy ,Harbin University of Commerce, Harbin, People's Republic of China
| | - Yuanjie Ma
- Department of pharmacy ,Harbin University of Commerce, Harbin, People's Republic of China
| | - Xiaozhen Guo
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Pei Hu
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Zhixiong Li
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China.
| | - Chenggang Huang
- Modernization of traditional Chinese medicine, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai, People's Republic of China.
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28
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Gold-Smith F, Fernandez A, Bishop K. Mangiferin and Cancer: Mechanisms of Action. Nutrients 2016; 8:E396. [PMID: 27367721 PMCID: PMC4963872 DOI: 10.3390/nu8070396] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/30/2016] [Accepted: 06/22/2016] [Indexed: 01/30/2023] Open
Abstract
Mangiferin, a bioactive compound derived primarily from Anacardiaceae and Gentianaceae families and found in mangoes and honeybush tea, has been extensively studied for its therapeutic properties. Mangiferin has shown promising chemotherapeutic and chemopreventative potential. This review focuses on the effect of mangiferin on: (1) inflammation, with respect to NFκB, PPARү and the immune system; (2) cell cycle, the MAPK pathway G₂/M checkpoint; (3) proliferation and metastasis, and implications on β-catenin, MMPs, EMT, angiogenesis and tumour volume; (4) apoptosis, with a focus on Bax/Bcl ratios, intrinsic/extrinsic apoptotic pathways and telomerase activity; (5) oxidative stress, through Nrf2/ARE signalling, ROS elimination and catalase activity; and (6) efficacy of chemotherapeutic agents, such as oxaliplatin, etoposide and doxorubicin. In addition, the need to enhance the bioavailability and delivery of mangiferin are briefly addressed, as well as the potential for toxicity.
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Affiliation(s)
- Fuchsia Gold-Smith
- Auckland Cancer Society Research Center, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Alyssa Fernandez
- Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Karen Bishop
- Auckland Cancer Society Research Center, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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29
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Lim DY, Shin SH, Lee MH, Malakhova M, Kurinov I, Wu Q, Xu J, Jiang Y, Dong Z, Liu K, Lee KY, Bae KB, Choi BY, Deng Y, Bode A, Dong Z. A natural small molecule, catechol, induces c-Myc degradation by directly targeting ERK2 in lung cancer. Oncotarget 2016; 7:35001-14. [PMID: 27167001 PMCID: PMC5085205 DOI: 10.18632/oncotarget.9223] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/10/2016] [Indexed: 12/19/2022] Open
Abstract
Various carcinogens induce EGFR/RAS/MAPK signaling, which is critical in the development of lung cancer. In particular, constitutive activation of extracellular signal-regulated kinase 2 (ERK2) is observed in many lung cancer patients, and therefore developing compounds capable of targeting ERK2 in lung carcinogenesis could be beneficial. We examined the therapeutic effect of catechol in lung cancer treatment. Catechol suppressed anchorage-independent growth of murine KP2 and human H460 lung cancer cell lines in a dose-dependent manner. Catechol inhibited ERK2 kinase activity in vitro, and its direct binding to the ERK2 active site was confirmed by X-ray crystallography. Phosphorylation of c-Myc, a substrate of ERK2, was decreased in catechol-treated lung cancer cells and resulted in reduced protein stability and subsequent down-regulation of total c-Myc. Treatment with catechol induced G1 phase arrest in lung cancer cells and decreased protein expression related to G1-S progression. In addition, we showed that catechol inhibited the growth of both allograft and xenograft lung cancer tumors in vivo. In summary, catechol exerted inhibitory effects on the ERK2/c-Myc signaling axis to reduce lung cancer tumor growth in vitro and in vivo, including a preclinical patient-derived xenograft (PDX) model. These findings suggest that catechol, a natural small molecule, possesses potential as a novel therapeutic agent against lung carcinogenesis in future clinical approaches.
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Affiliation(s)
- Do Young Lim
- The Hormel Institute, University of Minnesota, MN, USA
| | - Seung Ho Shin
- The Hormel Institute, University of Minnesota, MN, USA
- Program in Biomedical Informatics and Computational Biology, University of Minnesota, Minneapolis, MN, USA
| | - Mee-Hyun Lee
- The Hormel Institute, University of Minnesota, MN, USA
- The China-US (Henan) Cancer Institute, Zhengzhou, Henan, China
| | | | | | - Qiong Wu
- The China-US (Henan) Cancer Institute, Zhengzhou, Henan, China
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
| | - Jinglong Xu
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, China
| | - Yanan Jiang
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, China
| | - Ziming Dong
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, China
| | - Kangdong Liu
- The China-US (Henan) Cancer Institute, Zhengzhou, Henan, China
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
- The Affiliated Cancer Hospital, Zhengzhou University, Zhengzhou, Henan, China
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, China
| | - Kun Yeong Lee
- The Hormel Institute, University of Minnesota, MN, USA
| | - Ki Beom Bae
- The Hormel Institute, University of Minnesota, MN, USA
| | - Bu Young Choi
- Pharmaceutical Science and Engineering, School of Convergence Bioscience and Technology, Seowon University, Cheongju, Chungbuk, South Korea
| | - Yibin Deng
- The Hormel Institute, University of Minnesota, MN, USA
| | - Ann Bode
- The Hormel Institute, University of Minnesota, MN, USA
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, MN, USA
- The China-US (Henan) Cancer Institute, Zhengzhou, Henan, China
- The Pathophysiology Department, The School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Hunan, China
- The Affiliated Cancer Hospital, Zhengzhou University, Zhengzhou, Henan, China
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, China
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30
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The RAF-MEK-ERK pathway: targeting ERK to overcome obstacles to effective cancer therapy. Future Med Chem 2015; 7:269-89. [PMID: 25826360 DOI: 10.4155/fmc.14.143] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
AIM Currently, dozens of BRAF inhibitors and MEK inhibitors targeting RAF-MEK-ERK pathway have been introduced into clinical trials for cancer therapy. However, after 6-8 months of initial response, acquired drug resistance among the majority of those treated patients sharply diminished their clinical efficacy. DISCUSSION Important mechanisms responsible for acquired resistance of BRAF inhibitors and MEK inhibitors have been elucidated. Continually, ERK1/2 locates in the critical position and features unique characteristics, such as activating hundreds of substrates, participating in feedback regulation, being catalyzed by MEK specifically and no acquired resistant mutation. CONCLUSION Taking in account the inspiring outcomes of ERK inhibitors in preclinical research, ERK1/2 might be the optimal target to overcome acquired drug resistance in RAF-MEK-ERK pathway.
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31
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Kim JE, Roh E, Lee MH, Yu DH, Kim DJ, Lim TG, Jung SK, Peng C, Cho YY, Dickinson S, Alberts D, Bowden GT, Einspahr J, Stratton SP, Curiel-Lewandrowski C, Bode AM, Lee KW, Dong Z. Fyn is a redox sensor involved in solar ultraviolet light-induced signal transduction in skin carcinogenesis. Oncogene 2015; 35:4091-101. [PMID: 26686094 PMCID: PMC4916055 DOI: 10.1038/onc.2015.471] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 09/15/2015] [Accepted: 11/10/2015] [Indexed: 12/21/2022]
Abstract
Solar ultraviolet (UV) light is a major etiological factor in skin carcinogenesis, with solar UV-stimulated signal transduction inducing pathological changes and skin damage. The primary sensor of solar UV-induced cellular signaling has not been identified. We use an experimental system of solar simulated light (SSL) to mimic solar UV and we demonstrate that Fyn is a primary redox sensor involved in SSL-induced signal transduction. Reactive oxygen species (ROS) generated by SSL exposure directly oxidize Cys488 of Fyn, resulting in increased Fyn kinase activity. Fyn oxidation was increased in mouse skin after SSL exposure, and Fyn knockout (Fyn−/−) mice formed larger and more tumors compared to Fyn wildtype mice when exposed to SSL for an extended period of time. Murine embryonic fibroblasts (MEFs) lacking Fyn as well as cells in which Fyn expression was knocked down were resistant to SSL-induced apoptosis. Furthermore, cells expressing mutant Fyn (C448A) were resistant to SSL-induced apoptosis. These findings suggest that Fyn acts as a regulatory nexus between solar UV, ROS and signal transduction during skin carcinogenesis.
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Affiliation(s)
- J-E Kim
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea
| | - E Roh
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - M H Lee
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,China-US Hormel Cancer Institute, Zhenzhou, Henan, China
| | - D H Yu
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - D J Kim
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - T-G Lim
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea.,Division of Strategic Food Research, Korea Food Research Institute, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - S K Jung
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Division of Strategic Food Research, Korea Food Research Institute, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - C Peng
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - Y-Y Cho
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, Republic of Korea
| | - S Dickinson
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - D Alberts
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - G T Bowden
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - J Einspahr
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - S P Stratton
- University of Arizona Cancer Center, Tucson, AZ, USA
| | | | - A M Bode
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - K W Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea
| | - Z Dong
- The Hormel Institute, University of Minnesota, Austin, MN, USA
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32
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Discovery of γ-Mangostin as an Amyloidogenesis Inhibitor. Sci Rep 2015; 5:13570. [PMID: 26310724 PMCID: PMC4550876 DOI: 10.1038/srep13570] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 07/30/2015] [Indexed: 11/30/2022] Open
Abstract
Transthyretin (TTR) is a homotetrameric protein involved in human hereditary amyloidoses. The discovery and development of small molecules that inhibit the amyloid fibril formation of TTR is one of the therapeutic strategies for these diseases. Herein, we discovered that γ-mangostin (γ-M) is an effective inhibitor against the amyloid fibril formation of V30M amyloidogenic TTR. In-vitro binding assays revealed that γ-M was the most potent of the selected xanthone derivatives, and it bound to the thyroxine (T4)-binding sites and stabilized the TTR tetramer. X-ray crystallographic analysis revealed the diagonal binding mode of γ-M and the two binding sites of chloride ions at the T4-binding site. One of the chloride ions was replaced with a water molecule in the α-mangostin complex, which is a methylated derivative of γ-M. The stronger inhibitory potency of γ-M could be explained by the additional hydrogen bonds with the chloride ion. The present study establishes γ-M as a novel inhibitor of TTR fibrillization.
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33
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Induced apoptosis in melanocytes cancer cell and oxidation in biomolecules through deuterium oxide generated from atmospheric pressure non-thermal plasma jet. Sci Rep 2014; 4:7589. [PMID: 25534001 PMCID: PMC4274518 DOI: 10.1038/srep07589] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 11/28/2014] [Indexed: 12/03/2022] Open
Abstract
Recently, atmospheric-pressure non-thermal plasma-jets (APPJ) are being for the cancer treatment. However, APPJ still has drawbacks such as efficiency and rise in temperature after treatment. So, in this work, a synergetic agent D2O vapour is attached to APPJ which not only increase the efficiency of plasma source against cancer treatment, but also controlled the temperature during the treatment. OD generated by the combination of D2O + N2 plasma helped in enhancing the efficiency of APPJ. We observed OD induced apoptosis on melanocytes G361 cancer cells through DNA damage signalling cascade. Additionally, we observed that plasma induces ROS, which activated MAPK p38 and inhibits p42/p44 MAPK, leading to cancer cell death. We have also studied DNA oxidation by extracting DNA from treated cancer cell and then analysed the effects of OD/OH/D2O2/H2O2 on protein modification and oxidation. Additionally, we attempted molecular docking approaches to check the action of D2O2 on the apoptosis related genes. Further, we confirmed the formation of OD/OH simultaneously in the solution using optical emission spectroscopy. Moreover, the simultaneous generation of D2O2/H2O2 was detected by the use of confocal Raman spectroscopy and density measurements.
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34
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Yang G, Fu Y, Malakhova M, Kurinov I, Zhu F, Yao K, Li H, Chen H, Li W, Lim DY, Sheng Y, Bode AM, Dong Z, Dong Z. Caffeic acid directly targets ERK1/2 to attenuate solar UV-induced skin carcinogenesis. Cancer Prev Res (Phila) 2014; 7:1056-66. [PMID: 25104643 PMCID: PMC4185237 DOI: 10.1158/1940-6207.capr-14-0141] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Caffeic acid (3,4-dihydroxycinnamic acid) is a well-known phenolic phytochemical present in coffee and reportedly has anticancer activities. However, the underlying molecular mechanisms and targeted proteins involved in the suppression of carcinogenesis by caffeic acid are not fully understood. In this study, we report that caffeic acid significantly inhibits colony formation of human skin cancer cells and EGF-induced neoplastic transformation of HaCaT cells dose-dependently. Caffeic acid topically applied to dorsal mouse skin significantly suppressed tumor incidence and volume in a solar UV (SUV)-induced skin carcinogenesis mouse model. A substantial reduction of phosphorylation in mitogen-activated protein kinase signaling was observed in mice treated with caffeic acid either before or after SUV exposure. Caffeic acid directly interacted with ERK1/2 and inhibited ERK1/2 activities in vitro. Importantly, we resolved the cocrystal structure of ERK2 complexed with caffeic acid. Caffeic acid interacted directly with ERK2 at amino acid residues Q105, D106, and M108. Moreover, A431 cells expressing knockdown of ERK2 lost sensitivity to caffeic acid in a skin cancer xenograft mouse model. Taken together, our results suggest that caffeic acid exerts chemopreventive activity against SUV-induced skin carcinogenesis by targeting ERK1 and 2.
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Affiliation(s)
- Ge Yang
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
- Physiology and Pathophysiology, Basic Medical College, Zhengzhou University, ZhengZhou, 450001, China
- The First Affiliated Hospital of Zhengzhou University, ZhengZhou, 450001, China
| | - Yang Fu
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
- The First Affiliated Hospital of Zhengzhou University, ZhengZhou, 450001, China
| | - Margarita Malakhova
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Igor Kurinov
- Cornell University, NE-CAT, APS, Argonne, IL 60439, USA
| | - Feng Zhu
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Ke Yao
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Haitao Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Wei Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Do Young Lim
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Yuqiao Sheng
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
- Physiology and Pathophysiology, Basic Medical College, Zhengzhou University, ZhengZhou, 450001, China
- The First Affiliated Hospital of Zhengzhou University, ZhengZhou, 450001, China
| | - Ann M. Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
| | - Ziming Dong
- Physiology and Pathophysiology, Basic Medical College, Zhengzhou University, ZhengZhou, 450001, China
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota, 55912, USA
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Yao K, Chen H, Liu K, Langfald A, Yang G, Zhang Y, Yu DH, Kim MO, Lee MH, Li H, Bae KB, Kim HG, Ma WY, Bode AM, Dong Z, Dong Z. Kaempferol targets RSK2 and MSK1 to suppress UV radiation-induced skin cancer. Cancer Prev Res (Phila) 2014; 7:958-967. [PMID: 24994661 DOI: 10.1158/1940-6207.capr-14-0126] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Solar UV (SUV) irradiation is a major factor in skin carcinogenesis, the most common form of cancer in the United States. The MAPK cascades are activated by SUV irradiation. The 90 kDa ribosomal S6 kinase (RSK) and mitogen and stress-activated protein kinase (MSK) proteins constitute a family of protein kinases that mediate signal transduction downstream of the MAPK cascades. In this study, phosphorylation of RSK and MSK1 was upregulated in human squamous cell carcinoma (SCC) and SUV-treated mouse skin. Kaempferol, a natural flavonol, found in tea, broccoli, grapes, apples, and other plant sources, is known to have anticancer activity, but its mechanisms and direct target(s) in cancer chemoprevention are unclear. Kinase array results revealed that kaempferol inhibited RSK2 and MSK1. Pull-down assay results, ATP competition, and in vitro kinase assay data revealed that kaempferol interacts with RSK2 and MSK1 at the ATP-binding pocket and inhibits their respective kinase activities. Mechanistic investigations showed that kaempferol suppresses RSK2 and MSK1 kinase activities to attenuate SUV-induced phosphorylation of cAMP-responsive element binding protein (CREB) and histone H3 in mouse skin cells. Kaempferol was a potent inhibitor of SUV-induced mouse skin carcinogenesis. Further analysis showed that skin from the kaempferol-treated group exhibited a substantial reduction in SUV-induced phosphorylation of CREB, c-Fos, and histone H3. Overall, our results identify kaempferol as a safe and novel chemopreventive agent against SUV-induced skin carcinogenesis that acts by targeting RSK2 and MSK1.
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Affiliation(s)
- Ke Yao
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912.,Pathophysiology Department, Basic Medical College, Zhengzhou University, No.100 Kexue Road, Henan, China, 450001
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Kangdong Liu
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912.,Pathophysiology Department, Basic Medical College, Zhengzhou University, No.100 Kexue Road, Henan, China, 450001
| | - Alyssa Langfald
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Ge Yang
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912.,Pathophysiology Department, Basic Medical College, Zhengzhou University, No.100 Kexue Road, Henan, China, 450001
| | - Yi Zhang
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912.,Pathophysiology Department, Basic Medical College, Zhengzhou University, No.100 Kexue Road, Henan, China, 450001
| | - Dong Hoon Yu
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Myoung Ok Kim
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Mee-Hyun Lee
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Haitao Li
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Ki Beom Bae
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Hong-Gyum Kim
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Wei-Ya Ma
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
| | - Ziming Dong
- Pathophysiology Department, Basic Medical College, Zhengzhou University, No.100 Kexue Road, Henan, China, 450001
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN 55912
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36
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Rajendran P, Rengarajan T, Nandakumar N, Divya H, Nishigaki I. Mangiferin in cancer chemoprevention and treatment: pharmacokinetics and molecular targets. J Recept Signal Transduct Res 2014; 35:76-84. [DOI: 10.3109/10799893.2014.931431] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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37
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Han B, Yang B, Yang X, Zhao Y, Liao X, Gao C, Wang F, Jiang R. Host–guest inclusion system of norathyriol with β-cyclodextrin and its derivatives: Preparation, characterization, and anticancer activity. J Biosci Bioeng 2014; 117:775-9. [DOI: 10.1016/j.jbiosc.2013.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 12/01/2013] [Accepted: 12/02/2013] [Indexed: 10/25/2022]
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38
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Lim DY, Lee MH, Shin SH, Chen H, Ryu J, Shan L, Li H, Bode AM, Zhang WD, Dong Z. (+)-2-(1-Hydroxyl-4-oxocyclohexyl) ethyl caffeate suppresses solar UV-induced skin carcinogenesis by targeting PI3K, ERK1/2, and p38. Cancer Prev Res (Phila) 2014; 7:856-65. [PMID: 24845061 DOI: 10.1158/1940-6207.capr-13-0286] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
For decades, skin cancer incidence has increased, mainly because of oncogenic signaling pathways activated by solar ultraviolet (UV) irradiation (i.e., sun exposure). Solar UV induces multiple signaling pathways that are critical in the development of skin cancer, and therefore the development of compounds capable of targeting multiple molecules for chemoprevention of skin carcinogenesis is urgently needed. Herein, we examined the chemopreventive effects and the molecular mechanism of (+)-2-(1-hydroxyl-4-oxocyclohexyl) ethyl caffeate (HOEC), isolated from Incarvillea mairei var. grandiflora (Wehrhahn) Grierson. HOEC strongly inhibited neoplastic transformation of JB6 Cl41 cells without toxicity. PI3K, ERK1/2, and p38 kinase activities were suppressed by direct binding with HOEC in vitro. Our in silico docking data showed that HOEC binds at the ATP-binding site of each kinase. The inhibition of solar UV-induced PI3K, ERK1/2, and p38 kinase activities resulted in suppression of their downstream signaling pathways and AP1 and NF-κB transactivation in JB6 cells. Furthermore, topical application of HOEC reduced skin cancer incidence and tumor volume in SKH-1 hairless mice chronically exposed to solar UV. In summary, our results show that HOEC exerts inhibitory effects on multiple kinase targets and their downstream pathways activated by solar UV in vitro and in vivo. These findings suggest that HOEC is a potent chemopreventive compound against skin carcinogenesis caused by solar UV exposure.
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Affiliation(s)
- Do Young Lim
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Mee-Hyun Lee
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Seung Ho Shin
- The Hormel Institute, University of Minnesota, Austin, Minnesota; Program in Biomedical Informatics and Computational Biology, University of Minnesota, Minneapolis, Minnesota
| | - Hanyoung Chen
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Joohyun Ryu
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Lei Shan
- Department of Natural Product Chemistry, Second Military Medical University
| | - Honglin Li
- School of Pharmacy, East China University of Science & Technology, Shanghai, PR China; and
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Wei-Dong Zhang
- Department of Natural Product Chemistry, Second Military Medical University;
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota;
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Kundu JK, Chun KS. The Promise of Dried Fruits in Cancer Chemoprevention. Asian Pac J Cancer Prev 2014; 15:3343-52. [DOI: 10.7314/apjcp.2014.15.8.3343] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Inhibitory effects of dietary Spirulina platensis on UVB-induced skin inflammatory responses and carcinogenesis. J Invest Dermatol 2014; 134:2610-2619. [PMID: 24732403 DOI: 10.1038/jid.2014.188] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 03/07/2014] [Accepted: 03/17/2014] [Indexed: 11/09/2022]
Abstract
Reactive oxygen species produced in response to UVR are important in skin tumor development. We have previously reported that deficiency of the Ogg1 gene, encoding the repair enzyme for 8-oxo-7,8-dihydroguanine (8-oxoG), increases skin tumor incidence in mice upon repetitive UVB exposure and modulation of UVB-induced inflammatory response. Spirulina platensis is used as a human food supplement because it contains abundant nutritional and antioxidant components. Therefore, we investigated the inhibitory effects of S. platensis on UVB-induced skin tumor development in Ogg1 knockout-(KO) mice and the wild-type (WT) counterpart. Dietary S. platensis suppressed tumor induction and development in both genotypes compared with our previous data without S. platensis. Induction of erythema and ear swelling, one of the hallmarks of UVB-induced inflammatory responses, was suppressed in the skin of Ogg1-KO mice and albino hairless mice fed with dietary S. platensis. Compared with untreated mice, S. platensis-administered mice showed significantly reduced 8-oxoG formation in the skin after UVB exposure. Moreover, we found that S. platensis effectively downregulated the signal proteins p38 mitogen-activated protein kinase, stress-activated protein kinase/c-Jun N-terminal kinase, and extracellular signal-regulated kinase after UVB exposure especially in Ogg1-KO mice. Our results suggest that S. platensis exerts antitumor effects against UVB irradiation in the skin through its anti-inflammatory and antioxidant effects.
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Singh M, Suman S, Shukla Y. New Enlightenment of Skin Cancer Chemoprevention through Phytochemicals: In Vitro and In Vivo Studies and the Underlying Mechanisms. BIOMED RESEARCH INTERNATIONAL 2014; 2014:243452. [PMID: 24757666 PMCID: PMC3976810 DOI: 10.1155/2014/243452] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 12/05/2013] [Accepted: 12/05/2013] [Indexed: 02/08/2023]
Abstract
Skin cancer is still a major cause of morbidity and mortality worldwide. Skin overexposure to ultraviolet irradiations, chemicals, and several viruses has a capability to cause severe skin-related disorders including immunosuppression and skin cancer. These factors act in sequence at various steps of skin carcinogenesis via initiation, promotion, and/or progression. These days cancer chemoprevention is recognized as the most hopeful and novel approach to prevent, inhibit, or reverse the processes of carcinogenesis by intervention with natural products. Phytochemicals have antioxidant, antimutagenic, anticarcinogenic, and carcinogen detoxification capabilities thereby considered as efficient chemopreventive agents. Considerable efforts have been done to identify the phytochemicals which may possibly act on one or several molecular targets that modulate cellular processes such as inflammation, immunity, cell cycle progression, and apoptosis. Till date several phytochemicals in the light of chemoprevention have been studied by using suitable skin carcinogenic in vitro and in vivo models and proven as beneficial for prevention of skin cancer. This revision presents a comprehensive knowledge and the main molecular mechanisms of actions of various phytochemicals in the chemoprevention of skin cancer.
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Affiliation(s)
- Madhulika Singh
- Proteomics Laboratory, Council of Scientific & Industrial Research, Indian Institute of Toxicology Research, P.O. Box 80, M. G. Marg, Lucknow 226001, India
| | - Shankar Suman
- Proteomics Laboratory, Council of Scientific & Industrial Research, Indian Institute of Toxicology Research, P.O. Box 80, M. G. Marg, Lucknow 226001, India
| | - Yogeshwer Shukla
- Proteomics Laboratory, Council of Scientific & Industrial Research, Indian Institute of Toxicology Research, P.O. Box 80, M. G. Marg, Lucknow 226001, India
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42
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Thongrakard V, Ruangrungsi N, Ekkapongpisit M, Isidoro C, Tencomnao T. Protection from UVB Toxicity in Human Keratinocytes by Thailand Native Herbs Extracts. Photochem Photobiol 2014; 90:214-24. [PMID: 23931284 DOI: 10.1111/php.12153] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 07/23/2013] [Indexed: 12/15/2022]
Abstract
Thai traditional medicine employs a wide range of indigenous herbs in the forms of tincture or tea for the cure of skin and systemic inflammatory diseases. The protection by Thai plants extracts against UVB DNA damage and cytotoxicity was investigated in human keratinocytes. Petroleum ether, dichloromethane and ethanol extracts were prepared from 15 Thai herb species, and the total phenolic and flavonoid contents, the antioxidant and UV-absorbing properties were assessed by standard procedures. Cytoprotective effects were evaluated on the basis of cell survival, caspase-3 activity and pyrimidine dimers determination. High total phenolic and flavonoid contents were found in the ethanol and dichloromethane fractions. Dichloromethane extract of turmeric was shown to possess the highest antioxidant activity. The maximum UV absorptions were found in the ethanol extract of turmeric and in the dichloromethane extract of ginger. These extracts stimulated the synthesis of Thioredoxin 1, an antioxidant protein, and could protect human HaCaT keratinocytes from UV-induced DNA damage and cytotoxicity. The present data support the utilization of turmeric and ginger extracts in anti-UV cosmetic pharmaceuticals.
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Affiliation(s)
- Visa Thongrakard
- Ph.D. Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
- Laboratorio di Patologia Molecolare, Dipartimento di Scienze della Salute, Università del Piemonte Orientale, Novara, Italy
| | - Nijsiri Ruangrungsi
- College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Maneerat Ekkapongpisit
- Laboratorio di Patologia Molecolare, Dipartimento di Scienze della Salute, Università del Piemonte Orientale, Novara, Italy
| | - Ciro Isidoro
- Laboratorio di Patologia Molecolare, Dipartimento di Scienze della Salute, Università del Piemonte Orientale, Novara, Italy
| | - Tewin Tencomnao
- Center for Excellence in Omics-Nano Medical Technology Development Project, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
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43
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Hou C. Theoretical study of antioxidative ability and antioxidative mechanism of norathyriol in solution. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2013.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Ma H, Chen H, Sun L, Tong L, Zhang T. Improving permeability and oral absorption of mangiferin by phospholipid complexation. Fitoterapia 2013; 93:54-61. [PMID: 24220727 DOI: 10.1016/j.fitote.2013.10.016] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 10/28/2013] [Accepted: 10/30/2013] [Indexed: 12/18/2022]
Abstract
Mangiferin is an active ingredient of medicinal plant with poor hydrophilicity and lipophilicity. Many reports focused on improving aqueous solubility, but oral bioavailability of mangiferin was still limited. In this study, we intended to increase not only solubility, but also membrane permeability of mangiferin by a phospholipid complexation technique. The new complex's physicochemical properties were characterized in terms of scanning electron microscopy (SEM), differential scanning calorimetry (DSC), infrared absorption spectroscopy (IR), aqueous solubility, oil-water partition coefficient and in vitro dissolution. The intestinal absorption of the complex was studied by the rat in situ intestinal perfusion model. After oral administration of mangiferin-phospholipid complex and crude mangiferin in rats, the concentrations of mangiferin were determined by a validated RP-HPLC method. Results showed that the solubility of the complex in water and in n-octanol was enhanced and the oil-water partition coefficient was improved by 6.2 times and the intestinal permeability in rats was enhanced significantly. Peak plasma concentration and AUC of mangiferin from the complex (Cmax: 377.66 μg/L, AUC: 1039.94 μg/L*h) were higher than crude mangiferin (Cmax: 180 μg/L, AUC: 2355.63 μg/L*h). In view of improved solubility and enhanced permeability, phospholipid complexation technique can increase bioavailability of mangiferin by 2.3 times in comparison to the crude mangiferin.
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Affiliation(s)
- Hequn Ma
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang, China
| | - Hongming Chen
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang, China
| | - Le Sun
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang, China
| | - Lijin Tong
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang, China
| | - Tianhong Zhang
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang, China.
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45
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Mangiferin exerts antitumor activity in breast cancer cells by regulating matrix metalloproteinases, epithelial to mesenchymal transition, and β-catenin signaling pathway. Toxicol Appl Pharmacol 2013; 272:180-90. [DOI: 10.1016/j.taap.2013.05.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/26/2013] [Accepted: 05/14/2013] [Indexed: 12/11/2022]
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46
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Conney AH, Lu YP, Lou YR, Kawasumi M, Nghiem P. Mechanisms of Caffeine-Induced Inhibition of UVB Carcinogenesis. Front Oncol 2013; 3:144. [PMID: 23785666 PMCID: PMC3683821 DOI: 10.3389/fonc.2013.00144] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 05/20/2013] [Indexed: 12/31/2022] Open
Abstract
Sunlight-induced non-melanoma skin cancer is the most prevalent cancer in the United States with more than two million cases per year. Several studies have shown an inhibitory effect of caffeine administration on UVB-induced skin cancer in mice, and these studies are paralleled by epidemiology studies that indicate an inhibitory effect of coffee drinking on non-melanoma skin cancer in humans. Strikingly, decaffeinated coffee consumption had no such inhibitory effect. Mechanism studies indicate that caffeine has a sunscreen effect that inhibits UVB-induced formation of thymine dimers and sunburn lesions in the epidermis of mice. In addition, caffeine administration has a biological effect that enhances UVB-induced apoptosis thereby enhancing the elimination of damaged precancerous cells, and caffeine administration also enhances apoptosis in tumors. Caffeine administration enhances UVB-induced apoptosis by p53-dependent and p53-independent mechanisms. Exploration of the p53-independent effect indicated that caffeine administration enhanced UVB-induced apoptosis by inhibiting the UVB-induced increase in ATR-mediated formation of phospho-Chk1 (Ser345) and abolishing the UVB-induced decrease in cyclin B1 which resulted in caffeine-induced premature and lethal mitosis in mouse skin. In studies with cultured primary human keratinocytes, inhibition of ATR with siRNA against ATR inhibited Chk1 phosphorylation and enhanced UVB-induced apoptosis. Transgenic mice with decreased epidermal ATR function that were irradiated chronically with UVB had 69% fewer tumors at the end of the study compared with irradiated littermate controls with normal ATR function. These results, which indicate that genetic inhibition of ATR (like pharmacologic inhibition of ATR via caffeine) inhibits UVB-induced carcinogenesis support the concept that ATR-mediated phosphorylation of Chk1 is an important target for caffeine’s inhibitory effect on UVB-induced carcinogenesis.
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Affiliation(s)
- Allan H Conney
- Susan Lehman Cullman Laboratory for Cancer Research, Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, NJ , USA ; Allan H. Conney Laboratory for Anticancer Research, Guangdong University of Technology , Guangzhou , China
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Liu K, Yu D, Cho YY, Bode AM, Ma W, Yao K, Li S, Li J, Bowden GT, Dong Z, Dong Z. Sunlight UV-induced skin cancer relies upon activation of the p38α signaling pathway. Cancer Res 2013; 73:2181-8. [PMID: 23382047 DOI: 10.1158/0008-5472.can-12-3408] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The activation of cellular signal transduction pathways by solar ultraviolet (SUV) irradiation plays a vital role in skin tumorigenesis. Although many pathways have been studied using pure ultraviolet A (UVA) or ultraviolet B (UVB) irradiation, the signaling pathways induced by SUV (i.e., sunlight) are not understood well enough to permit improvements for prevention, prognosis, and treatment. Here, we report parallel protein kinase array studies aimed at determining the dominant signaling pathway involved in SUV irradiation. Our results indicated that the p38-related signal transduction pathway was dramatically affected by SUV irradiation. SUV (60 kJ UVA/m(2)/3.6 kJ UVB/m(2)) irradiation stimulates phosphorylation of p38α (MAPK14) by 5.78-fold, MSK2 (RPS6KA4) by 6.38-fold, and HSP27 (HSPB1) by 34.56-fold compared with untreated controls. By investigating the tumorigenic role of SUV-induced signal transduction in wild-type and p38 dominant-negative (p38 DN) mice, we found that p38 blockade yielded fewer and smaller tumors. These results establish that p38 signaling is critical for SUV-induced skin carcinogenesis.
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Affiliation(s)
- Kangdong Liu
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
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Fromentin Y, Grellier P, Wansi JD, Lallemand MC, Buisson D. Yeast-Mediated Xanthone Synthesis through Oxidative Intramolecular Cyclization. Org Lett 2012; 14:5054-7. [DOI: 10.1021/ol302283p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yann Fromentin
- Unité Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS-MNHN, 57, Rue Cuvier, CP54, 75005, Paris, France, Laboratoire de Pharmacognosie, UMR 8638 CNRS-Université Paris Descartes Sorbonne Paris Cité, Faculté de Pharmacie, 75006 Paris, France, and Département de Chimie Organique, Université de Douala, Faculté des Sciences, P.O. Box 24157, Douala, Cameroon
| | - Philippe Grellier
- Unité Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS-MNHN, 57, Rue Cuvier, CP54, 75005, Paris, France, Laboratoire de Pharmacognosie, UMR 8638 CNRS-Université Paris Descartes Sorbonne Paris Cité, Faculté de Pharmacie, 75006 Paris, France, and Département de Chimie Organique, Université de Douala, Faculté des Sciences, P.O. Box 24157, Douala, Cameroon
| | - Jean Duplex Wansi
- Unité Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS-MNHN, 57, Rue Cuvier, CP54, 75005, Paris, France, Laboratoire de Pharmacognosie, UMR 8638 CNRS-Université Paris Descartes Sorbonne Paris Cité, Faculté de Pharmacie, 75006 Paris, France, and Département de Chimie Organique, Université de Douala, Faculté des Sciences, P.O. Box 24157, Douala, Cameroon
| | - Marie-Christine Lallemand
- Unité Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS-MNHN, 57, Rue Cuvier, CP54, 75005, Paris, France, Laboratoire de Pharmacognosie, UMR 8638 CNRS-Université Paris Descartes Sorbonne Paris Cité, Faculté de Pharmacie, 75006 Paris, France, and Département de Chimie Organique, Université de Douala, Faculté des Sciences, P.O. Box 24157, Douala, Cameroon
| | - Didier Buisson
- Unité Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS-MNHN, 57, Rue Cuvier, CP54, 75005, Paris, France, Laboratoire de Pharmacognosie, UMR 8638 CNRS-Université Paris Descartes Sorbonne Paris Cité, Faculté de Pharmacie, 75006 Paris, France, and Département de Chimie Organique, Université de Douala, Faculté des Sciences, P.O. Box 24157, Douala, Cameroon
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