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Wang L, Li M, Gu Y, Shi J, Yan J, Wang X, Li B, Wang B, Zhong W, Cao H. Dietary flavonoids-microbiota crosstalk in intestinal inflammation and carcinogenesis. J Nutr Biochem 2024; 125:109494. [PMID: 37866426 DOI: 10.1016/j.jnutbio.2023.109494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 02/20/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Colorectal cancer (CRC) is currently the third leading cancer and commonly develops from chronic intestinal inflammation. A strong association was found between gut microbiota and intestinal inflammation and carcinogenic risk. Flavonoids, which are abundant in vegetables and fruits, can inhibit inflammation, regulate gut microbiota, protect gut barrier integrity, and modulate immune cell function, thereby attenuating colitis and preventing carcinogenesis. Upon digestion, about 90% of flavonoids are transported to the colon without being absorbed in the small intestine. This phenomenon increases the abundance of beneficial bacteria and enhances the production of short-chain fatty acids. The gut microbe further metabolizes these flavonoids. Interestingly, some metabolites of flavonoids play crucial roles in anti-inflammation and anti-tumor effects. This review summarizes the modulatory effect of flavonoids on gut microbiota and their metabolism by intestinal microbe under disease conditions, including inflammatory bowel disease, colitis-associated cancer (CAC), and CRC. We focus on dietary flavonoids and microbial interactions in intestinal mucosal barriers as well as intestinal immune cells. Results provide novel insights to better understand the crosstalk between dietary flavonoids and gut microbiota and support the standpoint that dietary flavonoids prevent intestinal inflammation and carcinogenesis.
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Affiliation(s)
- Lei Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China; Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Mengfan Li
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Yu Gu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Junli Shi
- Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Jing Yan
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China; Department of Nutrition, the Second Affiliated Hospital, Air Force Medical University, Xi'an, China
| | - Xin Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Bingqing Li
- Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Weilong Zhong
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
| | - Hailong Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
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Dogra S, Singh J, Koul B, Yadav D. Artemisia vestita: A Folk Medicine with Hidden Herbal Fortune. Molecules 2023; 28:molecules28062788. [PMID: 36985759 PMCID: PMC10054384 DOI: 10.3390/molecules28062788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Traditional medicines are nature's gift and our native heritage, which play a vital role in maintaining a disease-free life. Artemisia vestita Wall. ex Besser (family: Asteraceae), popularly known as "Kubsha" or "Russian wormwood", is a highly enriched folklore medicine with wound- healing, antiphlogistic, antifebrile, antifeedant, anti-helminthic, antimicrobial, antiviral, antitumor, and antiproliferative potential attributed to the presence of various volatile and non-volatile secondary metabolites. A systematic and extensive review of the literature on A. vestita was carried out via the Web of Science, PubMed, INMEDPLAN, EMBASE, Google Scholar, and NCBI, as well as from several websites. The highly relevant literature contained in 109 references was selected for further inclusion in this review. A total of 202 bioactive compounds belonging to different chemical classes such as terpenoids, coumarins, flavonoids, alkaloids, acetylenes, tannins, carotenoids, and sterols have been reported in A. vestita, which are responsible for different pharmacological activities. The chemical structures obtained from the PubChem and Chem Spider databases were redrawn using the software Chem Draw® version 8.0. This review paper summarizes the distribution, botanical description, phytochemistry, pharmacological activities, and conservation of A. vestita, which will assist scientists for further investigation. Extensive studies on the active constituents, pharmaceutical standardization, mode of action, and sustainable conservation of A. vestita are needed to further explore its wound-healing and allied medicinal properties.
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Affiliation(s)
- Shivani Dogra
- Department of Microbiology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Joginder Singh
- Department of Microbiology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Bhupendra Koul
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Dhananjay Yadav
- Department of Life Sciences, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Olive Pomace Phenolic Compounds: From an Agro-Industrial By-Product to a Promising Ocular Surface Protection for Dry Eye Disease. J Clin Med 2022; 11:jcm11164703. [PMID: 36012942 PMCID: PMC9409789 DOI: 10.3390/jcm11164703] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/29/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Dry eye (DED) is a prevalent disease with immune-mediated inflammation as the principal pathophysiological etiology. Olive pomace, the major by-product of the olive oil industry, is rich in high-value polyphenols. Their anti-inflammatory and immunomodulatory activities were determined on human CD4+ T cells (hTCD4+) and in a DED animal model. The viability of hTCD4+ cells isolated from peripheral blood and activated with phytohemagglutinin-M was evaluated after treatment for 48 h with an olive pomace extract (OPT3, 0.10–0.40 mg/mL) and its major compound, hydroxytyrosol (25–100 μM). Regarding the DED animal model, 100 μM hydroxytyrosol, 0.20 mg/mL OPT3, or vehicle (borate buffer) were topically administered to 14 days-desiccating stress-exposed (constant airflow/scopolamine administration) C57BL/6 mice. Tear volume, corneal fluorescein staining (CFS), CD4+, and CD8+ T cell count in lymph nodes (flow cytometry), and IP-10 and TNF-α gene expression (qRT-PCR) in the cornea, conjunctiva, and lacrimal glands were evaluated. OPT3 (0.2–0.4 mg/mL) and hydroxytyrosol (100 μM) significantly reduced hTCD4+ proliferation. In mice, both treatments reduced lacrimal gland IP-10 gene expression. OPT3 also decreased CFS, and conjunctival IP-10 and corneal TNF-α gene expression. In lymph nodes, hydroxytyrosol reduced CD3+, OPT3, and CD8+ count. Thus, a high-value application as a promising DED protection was proposed for olive pomace.
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Asseri AH, Alam MJ, Alzahrani F, Khames A, Pathan MT, Abourehab MAS, Hosawi S, Ahmed R, Sultana SA, Alam NF, Alam NU, Alam R, Samad A, Pokhrel S, Kim JK, Ahammad F, Kim B, Tan SC. Toward the Identification of Natural Antiviral Drug Candidates against Merkel Cell Polyomavirus: Computational Drug Design Approaches. Pharmaceuticals (Basel) 2022; 15:ph15050501. [PMID: 35631328 PMCID: PMC9146542 DOI: 10.3390/ph15050501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/05/2022] [Accepted: 04/12/2022] [Indexed: 12/21/2022] Open
Abstract
Merkel cell carcinoma (MCC) is a rare form of aggressive skin cancer mainly caused by Merkel cell polyomavirus (MCPyV). Most MCC tumors express MCPyV large T (LT) antigens and play an important role in the growth-promoting activities of oncoproteins. Truncated LT promotes tumorigenicity as well as host cell proliferation by activating the viral replication machinery, and inhibition of this protein in humans drastically lowers cellular growth linked to the corresponding cancer. Our study was designed with the aim of identifying small molecular-like natural antiviral candidates that are able to inhibit the proliferation of malignant tumors, especially those that are aggressive, by blocking the activity of viral LT protein. To identify potential compounds against the target protein, a computational drug design including molecular docking, ADME (absorption, distribution, metabolism, and excretion), toxicity, molecular dynamics (MD) simulation, and molecular mechanics generalized Born surface area (MM-GBSA) approaches were applied in this study. Initially, a total of 2190 phytochemicals isolated from 104 medicinal plants were screened using the molecular docking simulation method, resulting in the identification of the top five compounds having the highest binding energy, ranging between −6.5 and −7.6 kcal/mol. The effectiveness and safety of the selected compounds were evaluated based on ADME and toxicity features. A 250 ns MD simulation confirmed the stability of the selected compounds bind to the active site (AS) of the target protein. Additionally, MM-GBSA analysis was used to determine the high values of binding free energy (ΔG bind) of the compounds binding to the target protein. The five compounds identified by computational approaches, Paulownin (CID: 3084131), Actaealactone (CID: 11537736), Epigallocatechin 3-O-cinnamate (CID: 21629801), Cirsilineol (CID: 162464), and Lycoricidine (CID: 73065), can be used in therapy as lead compounds to combat MCPyV-related cancer. However, further wet laboratory investigations are required to evaluate the activity of the drugs against the virus.
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Affiliation(s)
- Amer H. Asseri
- Biochemistry Department, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia; (A.H.A.); (F.A.); (S.H.)
- Centre for Artificial Intelligence in Precision Medicines, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
| | - Md. Jahidul Alam
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali 3814, Bangladesh;
| | - Faisal Alzahrani
- Biochemistry Department, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia; (A.H.A.); (F.A.); (S.H.)
- King Fahd Medical Research Center, Embryonic Stem Cells Unit, Department of Biochemistry, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
| | - Ahmed Khames
- Department of Pharmaceutics and Industrial pharmacy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Mohammad Turhan Pathan
- Department of Biochemistry and Microbiology, North South University, Dhaka 1229, Bangladesh;
| | - Mohammed A. S. Abourehab
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Salman Hosawi
- Biochemistry Department, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia; (A.H.A.); (F.A.); (S.H.)
- Centre for Artificial Intelligence in Precision Medicines, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
| | - Rubaiat Ahmed
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka 1000, Bangladesh; (R.A.); (N.F.A.)
| | - Sifat Ara Sultana
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
| | - Nazia Fairooz Alam
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka 1000, Bangladesh; (R.A.); (N.F.A.)
| | - Nafee-Ul Alam
- Department of Biotechnology, College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Rahat Alam
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Science and Technology, Jashore University of Science and Technology, Jashore 7408, Bangladesh; (R.A.); (A.S.)
- Laboratory of Computational Biology, Biological Solution Centre (BioSol Centre), Jashore 7408, Bangladesh
| | - Abdus Samad
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Science and Technology, Jashore University of Science and Technology, Jashore 7408, Bangladesh; (R.A.); (A.S.)
- Laboratory of Computational Biology, Biological Solution Centre (BioSol Centre), Jashore 7408, Bangladesh
| | - Sushil Pokhrel
- Department of Biomedical Engineering, State University of New York (SUNY), Binghamton, NY 13902, USA;
| | - Jin Kyu Kim
- College of Korean Medicine, Kyung Hee University, Kyungheedae-ro 26, Dongdaemun-gu, Seoul 05254, Korea;
| | - Foysal Ahammad
- Laboratory of Computational Biology, Biological Solution Centre (BioSol Centre), Jashore 7408, Bangladesh
- Department of Biological Sciences, Faculty of Science, King Abdul-Aziz University (KAU), Jeddah 21589, Saudi Arabia
- Correspondence: (F.A.); (B.K.); (S.C.T.)
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Kyungheedae-ro 26, Dongdaemun-gu, Seoul 05254, Korea;
- Correspondence: (F.A.); (B.K.); (S.C.T.)
| | - Shing Cheng Tan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
- Correspondence: (F.A.); (B.K.); (S.C.T.)
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Wang X, Li D, Cao Y, Ho CT, Huang Q. Identification and Quantification of Both Methylation and Demethylation Biotransformation Metabolites of 5-Demethylsinensetin in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3162-3171. [PMID: 35230106 DOI: 10.1021/acs.jafc.1c07509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
5-Demethylated polymethoxyflavones (5-OH PMFs) are the most unique monodemethylated PMFs with relatively low polarities and are proved to possess better anticancer and anti-inflammatory effects than their respective permethoxylated ones. However, their detailed in vivo metabolic fates have not been fully studied. 5-Demethylsinensetin (5-OH Sin), being one of the 5-demethylated citrus PMFs, was used in the present research to investigate its biotransformation in pharmacokinetics and excretion in rats. The results showed that 5-OH Sin was mostly accumulated in the large intestine, indicating its poor absorption in the small intestine. In addition, 5,3'-didemethylsinensetin and 5,4'-didemethylsinensetin were identified as two dominated metabolites of 5-OH Sin, and the C-3' position of 5-OH Sin was more facile to be demethylated in systemic circulation. Moreover, other than demethylation reactions, the methylation transformation of 5-OH Sin and its metabolites were also observed and quantified, suggesting that the bidirectional biotransformation between 5-OH Sin and its parent compound, Sin, occurred under in vivo conditions.
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Affiliation(s)
- Xiaoqi Wang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Dongli Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong 510642, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Qingrong Huang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Cirsilineol inhibits cell growth and induces apoptosis in glioma C6 cells via inhibiting MAPK and PI3K/Akt/mTOR signaling pathways. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-021-02229-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Chopra B, Dhingra AK. Natural products: A lead for drug discovery and development. Phytother Res 2021; 35:4660-4702. [PMID: 33847440 DOI: 10.1002/ptr.7099] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 03/01/2021] [Accepted: 03/09/2021] [Indexed: 12/29/2022]
Abstract
Natural products are used since ancient times in folklore for the treatment of various ailments. Plant-derived products have been recognized for many years as a source of therapeutic agents and structural diversity. A literature survey has been carried out to determine the utility of natural molecules and their modified analogs or derivatives as pharmacological active entities. This review presents a study on the importance of natural products in terms of drug discovery and development. It describes how the natural components can be utilized after small modifications in new perspectives. Various new modifications in structure offer a unique opportunity to establish a new molecular entity with better pharmacological potential. It was concluded that in this current era, new attempts are taken to utilize the compounds derived from natural sources as novel drug candidates, with a focus to find and discover new effective molecules that were referred to as "new entities of natural product drug discovery."
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Affiliation(s)
- Bhawna Chopra
- Department of Pharmaceutical Chemistry, Guru Gobind Singh College of Pharmacy, Yamuna Nagar, India
| | - Ashwani Kumar Dhingra
- Department of Pharmaceutical Chemistry, Guru Gobind Singh College of Pharmacy, Yamuna Nagar, India
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Selective targeting of the androgen receptor-DNA binding domain by the novel antiandrogen SBF-1 and inhibition of the growth of prostate cancer cells. Invest New Drugs 2021; 39:442-457. [PMID: 33411211 DOI: 10.1007/s10637-020-01050-w] [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] [Received: 09/18/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Prostate cancers are reliant on androgens for growth and survival. Clinicians and researchers are looking for potent treatments for the resistant forms of prostate cancer; however, a handful of small molecules used in the treatment of castration-resistant prostate cancer have not shown potent effects owing to the mutations in the AR (Androgen Receptor). We used SBF-1, a well-characterized antitumor agent with potent cytotoxic effects against different kinds of cancers and investigated its effect on human prostate cancer. SBF-1 substantially inhibited the proliferation, induced apoptosis, and caused cell cycle arrest in LNCaP and PC3/AR+ prostate cancer cell lines. SBF-1 inhibited the activation of the IGF-1-PNCA pathway, as demonstrated by decreased expression of IGF-1 (insulin-like growth factor 1), proliferating cell nuclear antigen (PCNA), and its downstream Bcl-2 protein. Using microscale thermophoresis (MST) and isothermal titration calorimetry (ITC) assays, we observed a direct binding of SBF-1 to the AR. SBF-1 binds to the AR-DBD (DNA-binding domain) and blocks the transcription of its target gene. SBF-1 demonstrated a potent antitumor effect in vivo; it inhibited AR signaling and suppressed tumor growth in animals. Our study suggests that SBF-1 is an inhibitor of the AR and might be used in the treatment of prostate cancer.
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Cai Y, Zheng Q, Sun R, Wu J, Li X, Liu R. Recent progress in the study of Artemisiae Scopariae Herba (Yin Chen), a promising medicinal herb for liver diseases. Biomed Pharmacother 2020; 130:110513. [DOI: 10.1016/j.biopha.2020.110513] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/28/2020] [Accepted: 07/06/2020] [Indexed: 02/07/2023] Open
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Septembre-Malaterre A, Lalarizo Rakoto M, Marodon C, Bedoui Y, Nakab J, Simon E, Hoarau L, Savriama S, Strasberg D, Guiraud P, Selambarom J, Gasque P. Artemisia annua, a Traditional Plant Brought to Light. Int J Mol Sci 2020; 21:E4986. [PMID: 32679734 PMCID: PMC7404215 DOI: 10.3390/ijms21144986] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/23/2022] Open
Abstract
Traditional remedies have been used for thousand years for the prevention and treatment of infectious diseases, particularly in developing countries. Of growing interest, the plant Artemisia annua, known for its malarial properties, has been studied for its numerous biological activities including metabolic, anti-tumor, anti-microbial and immunomodulatory properties. Artemisia annua is very rich in secondary metabolites such as monoterpenes, sesquiterpenes and phenolic compounds, of which the biological properties have been extensively studied. The purpose of this review is to gather and describe the data concerning the main chemical components produced by Artemisia annua and to describe the state of the art about the biological activities reported for this plant and its compounds beyond malaria.
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Affiliation(s)
- Axelle Septembre-Malaterre
- Unité de recherche Etudes Pharmaco-Immunologie (EPI), Université de La Réunion, CHU La Réunion site Félix Guyon, Allée des Topazes, CS11021, 97400 Saint Denis de La Réunion, France; (P.G.); (J.S.); (P.G.)
| | - Mahary Lalarizo Rakoto
- Faculté de Médecine, Université d’Antananarivo, Campus Universitaire Ambohitsaina, BP 375, Antananarivo 101, Madagascar;
| | - Claude Marodon
- APLAMEDOM Réunion, 1, rue Emile Hugot, Batiment B, Parc Technologique de Saint Denis, 97490 Sainte Clotilde, La Réunion, France; (C.M.); (J.N.); (E.S.); (L.H.)
| | - Yosra Bedoui
- INSERM, UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400 Saint Denis de La Réunion, France;
| | - Jessica Nakab
- APLAMEDOM Réunion, 1, rue Emile Hugot, Batiment B, Parc Technologique de Saint Denis, 97490 Sainte Clotilde, La Réunion, France; (C.M.); (J.N.); (E.S.); (L.H.)
| | - Elisabeth Simon
- APLAMEDOM Réunion, 1, rue Emile Hugot, Batiment B, Parc Technologique de Saint Denis, 97490 Sainte Clotilde, La Réunion, France; (C.M.); (J.N.); (E.S.); (L.H.)
| | - Ludovic Hoarau
- APLAMEDOM Réunion, 1, rue Emile Hugot, Batiment B, Parc Technologique de Saint Denis, 97490 Sainte Clotilde, La Réunion, France; (C.M.); (J.N.); (E.S.); (L.H.)
| | - Stephane Savriama
- EA929 Archéologie Industrielle, Histoire, Patrimoine/Géographie-Développement Environnement de la Caraïbe (AIHP-GEODE), Université des Antilles, Campus Schoelcher, BP7207, 97275 Schoelcher Cedex Martinique, France;
| | - Dominique Strasberg
- Unité Mixte de Recherche Peuplements Végétaux et Bio-agresseurs en Milieu Tropical (PVBMT), Pôle de Protection des Plantes, Université de La Réunion, 7 Chemin de l’IRAT, 97410 Saint-Pierre, La Réunion, France;
| | - Pascale Guiraud
- Unité de recherche Etudes Pharmaco-Immunologie (EPI), Université de La Réunion, CHU La Réunion site Félix Guyon, Allée des Topazes, CS11021, 97400 Saint Denis de La Réunion, France; (P.G.); (J.S.); (P.G.)
| | - Jimmy Selambarom
- Unité de recherche Etudes Pharmaco-Immunologie (EPI), Université de La Réunion, CHU La Réunion site Félix Guyon, Allée des Topazes, CS11021, 97400 Saint Denis de La Réunion, France; (P.G.); (J.S.); (P.G.)
| | - Philippe Gasque
- Unité de recherche Etudes Pharmaco-Immunologie (EPI), Université de La Réunion, CHU La Réunion site Félix Guyon, Allée des Topazes, CS11021, 97400 Saint Denis de La Réunion, France; (P.G.); (J.S.); (P.G.)
- Laboratoire d’immunologie clinique et expérimentale de la zone de l’océan indien (LICE-OI) CHU La Réunion site Félix Guyon, Allée des Topazes, CS11021, 97400 Saint Denis de La Réunion, France
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Gahramanova M. THE USE OF HERBAL REMEDIES IN THE TREATMENT OF HEPATOBILIARY DISEASES: TRENDS AND PROSPECTS. BIOTECHNOLOGIA ACTA 2019. [DOI: 10.15407/biotech12.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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12
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Farrerol Ameliorates TNBS-Induced Colonic Inflammation by Inhibiting ERK1/2, JNK1/2, and NF-κB Signaling Pathway. Int J Mol Sci 2018; 19:ijms19072037. [PMID: 30011811 PMCID: PMC6073308 DOI: 10.3390/ijms19072037] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 12/23/2022] Open
Abstract
Farrerol, a type of 2, 3-dihydro-flavonoid, is obtained from Rhododendron. Previous studies have shown that Farrerol performs multiple biological activities, such as anti-inflammatory, antibacterial, and antioxidant activity. In this study, we aim to investigate the effect of Farrerol on colonic inflammation and explore its potential mechanisms. We found that the effect of Farrerol was evaluated via the 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis model in mice and found that Farrerol has a protective effect on TNBS-induced colitis. Farrerol administration significantly improved the weight change, clinical scores, colon length, and intestinal epithelium barrier damage and markedly decreased the inflammatory cytokines production in TNBS-induced mice. The protective effect of Farrerol was also observed in LPS-induced RAW264.7 cells. We found that Farrerol observably reduced the production of inflammatory mediators including IL-1β, IL-6, TNF-α, COX-2, and iNOS in LPS-induced RAW264.7 cells via suppressing AKT, ERK1/2, JNK1/2, and NF-κB p65 phosphorylation. In conclusion, the study found that Farrerol has a beneficial effect on TNBS-induced colitis and might be a natural therapeutic agent for IBD treatment.
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Sodium Butyrate Inhibits Inflammation and Maintains Epithelium Barrier Integrity in a TNBS-induced Inflammatory Bowel Disease Mice Model. EBioMedicine 2018; 30:317-325. [PMID: 29627390 PMCID: PMC5952406 DOI: 10.1016/j.ebiom.2018.03.030] [Citation(s) in RCA: 316] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/23/2018] [Accepted: 03/26/2018] [Indexed: 02/06/2023] Open
Abstract
G Protein Coupled Receptor 109A (GPR109A), which belongs to the G protein coupled receptor family, can be activated by niacin, butyrate, and β-hydroxybutyric acid. Here, we assessed the anti-inflammatory activity of sodium butyrate (SB) on 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis mice, an experimental model that resembles Crohn's disease, and explored the potential mechanism of SB in inflammatory bowel disease (IBD). In vivo, experimental GPR109a-/- and wild-type (WT) mice were administered SB (5g/L) in their drinking water for 6weeks. The mice were then administered TNBS via rectal perfusion to imitate colitis. In vitro, RAW246.7 macrophages, Caco-2 cells, and primary peritoneal macrophages were used to investigate the protective roles of SB on lipopolysaccharide (LPS)-induced inflammatory response and epithelium barrier dysfunction. In vivo, SB significantly ameliorated the inflammatory response and intestinal epithelium barrier dysfunction in TNBS-induced WT mice, but failed to provide a protective effect in TNBS-induced GPR109a-/- mice. In vitro, pre-treatment with SB dramatically inhibited the expression of TNF-α and IL-6 in LPS-induced RAW246.7 macrophages. SB inhibited the LPS-induced phosphorylation of the NF-κB p65 and AKT signaling pathways, but failed to inhibit the phosphorylation of the MAPK signaling pathway. Our data indicated that SB ameliorated the TNBS-induced inflammatory response and intestinal epithelium barrier dysfunction through activating GPR109A and inhibiting the AKT and NF-κB p65 signaling pathways. These findings therefore extend the understanding of GPR109A receptor function and provide a new theoretical basis for treatment of IBD.
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Roseotoxin B Improves Allergic Contact Dermatitis through a Unique Anti-Inflammatory Mechanism Involving Excessive Activation of Autophagy in Activated T Lymphocytes. J Invest Dermatol 2016; 136:1636-1646. [DOI: 10.1016/j.jid.2016.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 04/14/2016] [Accepted: 04/18/2016] [Indexed: 12/31/2022]
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Trichomide A, a Natural Cyclodepsipeptide, Exerts Immunosuppressive Activity against Activated T Lymphocytes by Upregulating SHP2 Activation to Overcome Contact Dermatitis. J Invest Dermatol 2014; 134:2737-2746. [DOI: 10.1038/jid.2014.252] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 04/24/2014] [Accepted: 04/25/2014] [Indexed: 01/09/2023]
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16
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Wu XF, Ouyang ZJ, Feng LL, Chen G, Guo WJ, Shen Y, Wu XD, Sun Y, Xu Q. Suppression of NF-κB signaling and NLRP3 inflammasome activation in macrophages is responsible for the amelioration of experimental murine colitis by the natural compound fraxinellone. Toxicol Appl Pharmacol 2014; 281:146-56. [PMID: 25448682 DOI: 10.1016/j.taap.2014.10.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 09/28/2014] [Accepted: 10/01/2014] [Indexed: 12/12/2022]
Abstract
Inflammatory bowel disease (IBD) affects millions of people worldwide. Although the etiology of this disease is uncertain, accumulating evidence indicates a key role for the activated mucosal immune system. In the present study, we examined the effects of the natural compound fraxinellone on dextran sulfate sodium (DSS)-induced colitis in mice, an animal model that mimics IBD. Treatment with fraxinellone significantly reduced weight loss and diarrhea in mice and alleviated the macroscopic and microscopic signs of the disease. In addition, the activities of myeloperoxidase and alkaline phosphatase were markedly suppressed, while the levels of glutathione were increased in colitis tissues following fraxinellone treatment. This compound also decreased the colonic levels of interleukin (IL)-1β, IL-6, IL-18 and tumor necrosis factor (TNF)-α in a concentration-dependent manner. These effects of fraxinellone in mice with experimental colitis were attributed to its inhibition of CD11b(+) macrophage infiltration. The mRNA levels of macrophage-related molecules in the colon, including intercellular adhesion molecule 1 (ICAM1), vascular cell adhesion molecule 1 (VCAM1), inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX2), were also markedly inhibited following fraxinellone treatment. The results from in vitro assays showed that fraxinellone significantly reduced lipopolysaccharide (LPS)-induced production of nitric oxide (NO), IL-1β and IL-18 as well as the activity of iNOS in both THP-1 cells and mouse primary peritoneal macrophages. The mechanisms responsible for these effects were attributed to the inhibitory role of fraxinellone in NF-κB signaling and NLRP3 inflammasome activation. Overall, our results support fraxinellone as a novel drug candidate in the treatment of colonic inflammation.
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Affiliation(s)
- Xue-Feng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Zi-Jun Ouyang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Li-Li Feng
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Gong Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wen-Jie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yan Shen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xu-Dong Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
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Zamanai Taghizadeh Rabe S, Iranshahi M, Rastin M, Tabasi N, Mahmoudi M. In vitroimmunomodulatory properties of a sesquiterpene lactone-bearing fraction fromArtemisia khorassanica. J Immunotoxicol 2014; 12:223-30. [DOI: 10.3109/1547691x.2014.930079] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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18
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Liu W, Guo W, Guo L, Gu Y, Cai P, Xie N, Yang X, Shu Y, Wu X, Sun Y, Xu Q. Andrographolide sulfonate ameliorates experimental colitis in mice by inhibiting Th1/Th17 response. Int Immunopharmacol 2014; 20:337-45. [DOI: 10.1016/j.intimp.2014.03.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/11/2014] [Accepted: 03/20/2014] [Indexed: 01/24/2023]
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Wu X, Fan J, Ouyang Z, Ning R, Guo W, Shen Y, Wu X, Sun Y, Xu Q. Tupistra chinensis extract attenuates murine fulminant hepatitis with multiple targets against activated T lymphocytes. ACTA ACUST UNITED AC 2013; 66:453-65. [PMID: 24206350 DOI: 10.1111/jphp.12176] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 10/10/2013] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The extract of Tupistra chinensis (TCE) is traditionally used for the treatment of inflammatory diseases in southwestern China for hundreds of years. The present study was designed to investigate the effects of the TCE against experimental hepatitis and to illustrate its potential mechanisms. METHODS Effects of TCE were investigated on Con A-induced hepatitis. Profiles of multiple cytokines were measured with biometric immuno-sandwich ELISA. Proliferation, activation and apoptosis of T lymphocytes were evaluated using Western blot, MTT analysis and flow cytometry. KEY FINDINGS TCE significantly inhibited levels of serum transaminases and lactic dehydrogenase in mice with Con A-induced hepatitis, accompanied with marked alleviation of the liver microscopic appearances. Moreover, it decreased levels of inflammatory cytokines in a concentration-dependent manner both in vivo and in vitro. It also suppressed mitogen-activated protein kinases and NF-κB-signalling in liver. These effects of TCE are attributed to its inhibition on activated T cells but not to hepatocytes protection. Flow cytometry and immunoblot assay data showed its effects on STAT1/NF-κB-signalling blockage and apoptosis induction in activated T cells. CONCLUSION Our findings illustrate the significant potential of TCE as a novel approach for treatment of T cell-mediated inflammatory diseases.
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Affiliation(s)
- Xuefeng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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Meisch JP, Vogel RM, Schlatzer DM, Li X, Chance MR, Levine AD. Human β-defensin 3 induces STAT1 phosphorylation, tyrosine phosphatase activity, and cytokine synthesis in T cells. J Leukoc Biol 2013; 94:459-71. [PMID: 23804808 DOI: 10.1189/jlb.0612300] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The AMP hBD-3 stimulates numerous immune effector functions in myeloid cells and keratinocytes, predominantly through the MAPK signaling cascade. In contrast, hBD-3 was reported to neutralize the activation of T cells by antagonizing MAPK signaling initiated by SDF-1α through CXCR4. With the use of complementary proteomic and immunochemical approaches, we investigated possible stimulatory effects of hBD-3 on T cells and demonstrate that hBD-3 induces STAT1 tyrosine phosphorylation within 5 min yet is unable to induce MAPK activation. Inclusion of a PTPase inhibitor increased hBD-3-induced phosphorylation dramatically, suggesting that hBD-3 also stimulates PTPase activity concurrently. The increase in PTPase activity was confirmed by demonstrating that hBD-3 suppresses IFN-γ-induced STAT1 tyrosine phosphorylation but not STAT1 serine and ERK1/2 threonine phosphorylation and stimulates the translocation of SHP-2 into the nucleus within 15 min. The signaling pathways initiated by hBD-3 may lead to the observed enhancement of distinct T cell effector functions during TCR activation, such as the increase in IL-2 and IL-10, but not IFN-γ secretion. Thus, hBD-3 initiates distinct lineage-specific signaling cascades in various cells involved in host defense and induces a concurrent tyrosine kinase and tyrosine phosphatase signaling cascade that may activate simultaneously the targeted T cells and inhibit their response to other immune mediators. Furthermore, these results suggest that this evolutionarily conserved peptide, which exhibits a broad spectrum of antimicrobial and immunomodulatory activities, serves to integrate innate and adaptive immunity.
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Affiliation(s)
- Jeffrey P Meisch
- Department of Medicine, Case Western Reserve University School ofMedicine, Cleveland, Ohio 44106-4952, USA
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21
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Gao Z, Chen W, Zhang X, Cai P, Fang X, Xu Q, Sun Y, Gu Y. Icotinib, a potent and specific EGFR tyrosine kinase inhibitor, inhibits growth of squamous cell carcinoma cell line A431 through negatively regulating AKT signaling. Biomed Pharmacother 2013; 67:351-6. [DOI: 10.1016/j.biopha.2013.03.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 03/10/2013] [Indexed: 12/21/2022] Open
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Okamoto Y, Hara T, Ebato T, Fukui T, Masuzawa T. Brazilian propolis ameliorates trinitrobenzene sulfonic acid-induced colitis in mice by inhibiting Th1 differentiation. Int Immunopharmacol 2013; 16:178-83. [DOI: 10.1016/j.intimp.2013.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 03/24/2013] [Accepted: 04/04/2013] [Indexed: 01/08/2023]
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23
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Feng LL, Wu XF, Liu HL, Guo WJ, Luo Q, Tao FF, Ge HM, Shen Y, Tan RX, Xu Q, Sun Y. Vaticaffinol, a resveratrol tetramer, exerts more preferable immunosuppressive activity than its precursor in vitro and in vivo through multiple aspects against activated T lymphocytes. Toxicol Appl Pharmacol 2013; 267:167-73. [DOI: 10.1016/j.taap.2012.12.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 11/22/2012] [Accepted: 12/18/2012] [Indexed: 10/27/2022]
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24
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Fang XY, Chen W, Fan JT, Song R, Wang L, Gu YH, Zeng GZ, Shen Y, Wu XF, Tan NH, Xu Q, Sun Y. Plant cyclopeptide RA-V kills human breast cancer cells by inducing mitochondria-mediated apoptosis through blocking PDK1-AKT interaction. Toxicol Appl Pharmacol 2012; 267:95-103. [PMID: 23274515 DOI: 10.1016/j.taap.2012.12.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 12/14/2012] [Accepted: 12/17/2012] [Indexed: 11/25/2022]
Abstract
In the present paper, we examined the effects of a natural cyclopeptide RA-V on human breast cancer cells and the underlying mechanisms. RA-V significantly inhibited the growth of human breast cancer MCF-7, MDA-MB-231 cells and murine breast cancer 4T1 cells. In addition, RA-V triggered mitochondrial apoptotic pathway which was indicated by the loss of mitochondrial membrane potential, the release of cytochrome c, and the activation of caspase cascade. Further study showed that RA-V dramatically inhibited phosphorylation of AKT and 3-phosphoinositide dependent protein kinase 1 (PDK1) in MCF-7 cells. Moreover, RA-V disrupted the interaction between PDK1 and AKT in MCF-7 cells. Furthermore, RA-V-induced apoptosis could be enhanced by phosphatidylinositol 3-kinase inhibitor or attenuated by over-expression of AKT in all the three kinds of breast cancer cells. Taken together, this study shows that RA-V, which can induce mitochondria-mediated apoptosis, exerts strong anti-tumor activity against human breast cancer. The underlying anti-cancer mechanism of RA-V is related to the blockage of the interaction between PDK1 and AKT.
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Affiliation(s)
- Xian-Ying Fang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Han Kou Road, Nanjing, China
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Rebuilding the balance of STAT1 and STAT3 signalings by fusaruside, a cerebroside compound, for the treatment of T-cell-mediated fulminant hepatitis in mice. Biochem Pharmacol 2012; 84:1164-73. [DOI: 10.1016/j.bcp.2012.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 07/27/2012] [Accepted: 08/09/2012] [Indexed: 01/13/2023]
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26
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Guo W, Liu W, Hong S, Liu H, Qian C, Shen Y, Wu X, Sun Y, Xu Q. Mitochondria-dependent apoptosis of con A-activated T lymphocytes induced by asiatic acid for preventing murine fulminant hepatitis. PLoS One 2012; 7:e46018. [PMID: 23029367 PMCID: PMC3454338 DOI: 10.1371/journal.pone.0046018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 08/27/2012] [Indexed: 11/19/2022] Open
Abstract
Selectively facilitating apoptosis of activated T cells is essential for the clearance of pathogenic injurious cells and subsequent efficient resolution of inflammation. However, few chemicals have been reported to trigger apoptosis of activated T cells for the treatment of hepatitis without affecting quiescent T cells. In the present study, we found that asiatic acid, a natural triterpenoid, selectively triggered apoptosis of concanavalin A (Con A)-activated T cells in a mitochondria-dependent manner indicated by the disruption of the mitochondrial transmembrane potential, release of cytochrome c from mitochondria to cytosol, caspases activation, and cleavage of PARP. In addition, asiatic acid also induced the cleavage of caspase 8 and Bid and augmented Fas expression in Con A-activated T cells. However, following activation of T cells from MRLlpr/lpr mice with mutation of Fas demonstrated a similar susceptibility to asiatic acid-induced apoptosis compared with normal T cells, suggesting that Fas-mediated death-receptor apoptotic pathway does not mainly contribute to asiatic acid-induced cell death. Furthermore, asiatic acid significantly alleviated Con A-induced T cell-dependent fulminant hepatitis in mice, as assessed by reduced serum transaminases, pro-inflammatory cytokines, and pathologic parameters. Consistent with the in vitro results, asiatic acid also induced apoptosis of activated CD4+ T cells in vivo. Taken together, our results demonstrated that the ability of asiatic acid to induce apoptosis of activated T cells and its potential use in the treatment of T-cell-mediated inflammatory diseases.
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Affiliation(s)
- Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Shaocheng Hong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Hailiang Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Cheng Qian
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yan Shen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xuefeng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
- * E-mail: (QX); (YS)
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
- * E-mail: (QX); (YS)
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Wu XF, Wu XX, Guo WJ, Luo Q, Gu YH, Shen Y, Tan RX, Sun Y, Xu Q. Cerebroside D, a glycoceramide compound, improves experimental colitis in mice with multiple targets against activated T lymphocytes. Toxicol Appl Pharmacol 2012; 263:296-302. [DOI: 10.1016/j.taap.2012.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Revised: 06/07/2012] [Accepted: 07/02/2012] [Indexed: 12/12/2022]
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Li W, Song R, Fang X, Wang L, Chen W, Tang P, Yu B, Sun Y, Xu Q. SBF-1, a synthetic steroidal glycoside, inhibits melanoma growth and metastasis through blocking interaction between PDK1 and AKT3. Biochem Pharmacol 2012; 84:172-81. [DOI: 10.1016/j.bcp.2012.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 04/05/2012] [Accepted: 04/06/2012] [Indexed: 12/30/2022]
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Galitovskiy V, Qian J, Chernyavsky AI, Marchenko S, Gindi V, Edwards RA, Grando SA. Cytokine-induced alterations of α7 nicotinic receptor in colonic CD4 T cells mediate dichotomous response to nicotine in murine models of Th1/Th17- versus Th2-mediated colitis. THE JOURNAL OF IMMUNOLOGY 2011; 187:2677-87. [PMID: 21784975 DOI: 10.4049/jimmunol.1002711] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ulcerative colitis (UC) and Crohn's disease (CD) are two forms of chronic inflammatory bowel disease. CD4 T cells play a central role in the pathogenesis of both diseases. Smoking affects both UC and CD but with opposite effects, ameliorating UC and worsening CD. We hypothesized that the severity of gut inflammation could be modulated through T cell nicotinic acetylcholine receptors (nAChRs) and that the exact clinical outcome would depend on the repertoire of nAChRs on CD4 T cells mediating each form of colitis. We measured clinical and immunologic outcomes of treating BALB/c mice with oxazolone- and trinitrobenzene sulfonic acid (TNBS)-induced colitides by nicotine. Nicotine attenuated oxazolone colitis, which was associated with an increased percentage of colonic regulatory T cells and a reduction of Th17 cells. TCR stimulation of naive CD4(+)CD62L(+) T cells in the presence of nicotine upregulated expression of Foxp3. In marked contrast, nicotine worsened TNBS colitis, and this was associated with increased Th17 cells among colonic CD4 T cells. Nicotine upregulated IL-10 and inhibited IL-17 production, which could be abolished by exogenous IL-12 that also abolished the nicotine-dependent upregulation of regulatory T cells. The dichotomous action of nicotine resulted from the up- and downregulation of anti-inflammatory α7 nAChR on colonic CD4 T cells induced by cytokines characteristic of the inflammatory milieu in oxazolone (IL-4) and TNBS (IL-12) colitis, respectively. These findings help explain the dichotomous effect of smoking in patients with UC and CD, and they underscore the potential for nicotinergic drugs in regulating colonic inflammation.
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Affiliation(s)
- Valentin Galitovskiy
- Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA
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Shen Y, Luo Q, Xu H, Gong F, Zhou X, Sun Y, Wu X, Liu W, Zeng G, Tan N, Xu Q. Mitochondria-dependent apoptosis of activated T lymphocytes induced by astin C, a plant cyclopeptide, for preventing murine experimental colitis. Biochem Pharmacol 2011; 82:260-8. [PMID: 21569765 DOI: 10.1016/j.bcp.2011.04.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 04/21/2011] [Accepted: 04/22/2011] [Indexed: 10/18/2022]
Abstract
Facilitating T-cell apoptosis is implicated as an effective therapeutic strategy for treatment of T cell-mediated disease, including inflammatory bowel disease. Here, we report that astin C, a plant cyclopeptide isolated from the roots of Aster tataricus (Compositae), induced apoptosis of activated T cells in a mitochondria-dependent but Fas-independent manner in that such activity was still observed in T cells from Fas-mutated MRLlpr/lpr mice. Although caspase 8 was not activated, astin C treatment led to the cleavage of caspase 9 and caspase 3, the upregulation of Bad protein expression as well as release of cytochrome c in activated T cells. Astin C did not induce the expression of GRP78 and GADD153, excluding involvement of endoplasmic reticulum stress-mediated pathway. Moreover, oral administration of astin C protected mice against TNBS-induced colonic inflammation, as assessed by a reduced colonic weight/length ratio and histological scoring. Administering astin C significantly decreased serum levels of TNF-α, IL-4 and IL-17, accompanied with the induction of apoptosis in activated T cells in vivo. The results demonstrate, for the first time, the ability of astin C to induce apoptosis in activated T cells and its potential use in the treatment of colonic inflammation.
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Affiliation(s)
- Yan Shen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Han Kou Road, Nanjing 210093, China
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Luo Q, Gu Y, Zheng W, Wu X, Gong F, Gu L, Sun Y, Xu Q. Erlotinib inhibits T-cell-mediated immune response via down-regulation of the c-Raf/ERK cascade and Akt signaling pathway. Toxicol Appl Pharmacol 2011; 251:130-6. [DOI: 10.1016/j.taap.2010.12.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 12/08/2010] [Accepted: 12/16/2010] [Indexed: 11/25/2022]
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Jaceosidin inhibits contact hypersensitivity in mice via down-regulating IFN-γ/STAT1/T-bet signaling in T cells. Eur J Pharmacol 2011; 651:205-11. [DOI: 10.1016/j.ejphar.2010.10.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 10/08/2010] [Accepted: 10/29/2010] [Indexed: 01/10/2023]
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