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Umbreen H, Zhang X, Tang KT, Lin CC. Regulation of Myeloid Dendritic Cells by Synthetic and Natural Compounds for the Treatment of Rheumatoid Arthritis. Int J Mol Sci 2022; 24:ijms24010238. [PMID: 36613683 PMCID: PMC9820359 DOI: 10.3390/ijms24010238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Different subsets of dendritic cells (DCs) participate in the development of rheumatoid arthritis (RA). In particular, myeloid DCs play a key role in the generation of autoreactive T and B cells. Herein, we undertook a literature review on those synthetic and natural compounds that have therapeutic efficacy/potential for RA and act through the regulation of myeloid DCs. Most of these compounds inhibit both the maturation of DCs and their secretion of inflammatory cytokines and, subsequently, alter the downstream T-cell response (suppression of Th1 and Th17 responses while expanding the Treg response). The majority of the synthetic compounds are approved for the treatment of patients with RA, which is consistent with the importance of DCs in the pathogenesis of RA. All of the natural compounds are derived from plants. Their DC-modulating effect has been demonstrated both in vitro and in vivo. In addition, these natural products ameliorate arthritis in rodents and are potential therapeutics for human RA.
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Affiliation(s)
- Hira Umbreen
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | - Xiang Zhang
- Department of Molecular Medicine and Surgery, Karolinska Institute, 171 76 Stockholm, Sweden
| | - Kuo-Tung Tang
- Division of Allergy, Immunology, and Rheumatology, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Correspondence: (K.-T.T.); (C.-C.L.); Tel.: +886-4-23592525 (ext. 3334) (K.-T.T.); +886-4-23592525 (ext. 3003) (C.-C.L.); Fax: +886-4-23503285 (K.-T.T. & C.-C.L.)
| | - Chi-Chien Lin
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Institute of Biomedical Science, The iEGG and Animal Biotechnology Center, National Chung-Hsing University, Taichung 402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404, Taiwan
- Department of Pharmacology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (K.-T.T.); (C.-C.L.); Tel.: +886-4-23592525 (ext. 3334) (K.-T.T.); +886-4-23592525 (ext. 3003) (C.-C.L.); Fax: +886-4-23503285 (K.-T.T. & C.-C.L.)
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Gao X, Hu Y, Tao Y, Liu S, Chen H, Li J, Zhao Y, Sheng J, Tian Y, Fan Y. Cymbopogon citratus (DC.) Stapf aqueous extract ameliorates loperamide-induced constipation in mice by promoting gastrointestinal motility and regulating the gut microbiota. Front Microbiol 2022; 13:1017804. [PMID: 36267178 PMCID: PMC9578511 DOI: 10.3389/fmicb.2022.1017804] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/09/2022] [Indexed: 12/02/2022] Open
Abstract
Slow transit constipation (STC) is the most common type of functional constipation. Drugs with good effects and few side effects are urgently needed form the treatment of STC. Cymbopogon citratus (DC.) Stapf (CC) is an important medicinal and edible spice plant. The wide range of biological activities suggested that CC may have laxative effects, but thus far, it has not been reported. In this study, the loperamide-induced STC mouse model was used to evaluate the laxative effect of the aqueous extract of CC (CCAE), and the laxative mechanism was systematically explored from the perspectives of the enteric nervous system (ENS), neurotransmitter secretion, gastrointestinal motility factors, intestinal inflammation, gut barrier and gut microbiota. The results showed that CCAE not only decreased the serum vasoactive intestinal polypeptide (VIP), induced nitric oxide synthases (iNOS), and acetylcholinesterase (AchE) in STC mice but also increased the expression of gastrointestinal motility factors in colonic interstitial cells of Cajal (ICCs) and smooth muscle cells (SMCs), thereby significantly shortening the defecation time and improving the gastrointestinal transit rate. The significantly affected gastrointestinal motility factors included stem cell factor receptor (c-Kit), stem cell factor (SCF), anoctamin 1 (Ano1), ryanodine receptor 3 (RyR3), smooth muscle myosin light chain kinase (smMLCK) and Connexin 43 (Cx43). Meanwhile, CCAE could repair loperamide-induced intestinal inflammation and intestinal barrier damage by reducing the expression of the pro-inflammatory factor IL-1β and increasing the expression of the anti-inflammatory factor IL-10, chemical barrier (Muc-2) and mechanical barrier (Cldn4, Cldn12, Occludin, ZO-1, and ZO-2). Interestingly, CCAE could also partially restore loperamide-induced gut microbial dysbiosis in various aspects, such as microbial diversity, community structure and species composition. Importantly, we established a complex but clear network between gut microbiota and host parameters. Muribaculaceae, Lachnospiraceae and UCG-010 showed the most interesting associations with the laxative phenotypes; several other specific taxa showed significant associations with serum neurotransmitters, gastrointestinal motility factors, intestinal inflammation, and the gut barrier. These findings suggested that CCAE might promote intestinal motility by modulating the ENS-ICCs-SMCs network, intestinal inflammation, intestinal barrier and gut microbiota. CC may be an effective and safe therapeutic choice for STC.
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Affiliation(s)
- Xiaoyu Gao
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Yifan Hu
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Yafei Tao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Shuangfeng Liu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Haowen Chen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Jiayi Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Yan Zhao
- Department of Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Jun Sheng
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming, China
- *Correspondence: Jun Sheng,
| | - Yang Tian
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming, China
- Yang Tian,
| | - Yuanhong Fan
- Yunnan Plateau Characteristic Agricultural Industry Research Institute, Yunnan Agricultural University, Kunming, China
- Yuanhong Fan,
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The Identification of APOBEC3G as a Potential Prognostic Biomarker in Acute Myeloid Leukemia and a Possible Drug Target for Crotonoside. Molecules 2022; 27:molecules27185804. [PMID: 36144542 PMCID: PMC9503540 DOI: 10.3390/molecules27185804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
The apolipoprotein B mRNA editing enzyme catalytic subunit 3G (APOBEC3G) converts cytosine to uracil in DNA/RNA. Its role in resisting viral invasion has been well documented. However, its expression pattern and potential function in AML remain unclear. In this study, we carried out a bioinformatics analysis and revealed that the expression of APOBEC3G was significantly upregulated in AML, and high expression of APOBEC3G was significantly associated with short overall survival (OS). APOBEC3G expression was especially increased in non-M3AML, and correlated with the unfavorable cytogenetic risks. Additionally, Cox regression analyses indicated APOBEC3G is a hazard factor that cannot be ignored for OS of AML patients. In molecular docking simulations, the natural product crotonoside was found to interact well with APOBEC3G. The expression of APOBEC3G is the highest in KG-1 cells, and the treatment with crotonoside can reduce the expression of APOBEC3G. Crotonoside can inhibit the viability of different AML cells in vitro, arrest KG-1 and MV-4-11 cells in the S phase of the cell cycle and affect the expression of cycle-related proteins, and induce cell apoptosis. Therefore, APOBEC3G could be a potential drug target of crotonoside, and crotonoside can be considered as a lead compound for APOBEC3G inhibition in non-M3 AML.
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Zhang T, Liu Z, Sun X, Liu Z, Zhang L, Zhang Q, Peng W, Wu C. Botany, traditional uses, phytochemistry, pharmacological and toxicological effects of Croton tiglium Linn.: a comprehensive review. J Pharm Pharmacol 2022; 74:1061-1084. [PMID: 35723937 DOI: 10.1093/jpp/rgac040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 05/17/2022] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Croton tiglium Linn. (Euphorbiaceae) is an ancient medicinal plant that has been used for a long time, which is widely distributed in tropical and subtropical regions. And it is widely used for defecation, induced labour, treatment of gastrointestinal diseases, headache, as well as rheumatoid arthritis. KEY FINDINGS Approximately 150 compounds have been isolated and identified from the seeds, stems, leaves and branches of C. tiglium, including fatty acids, terpenoids, alkaloids, the plants proteins and other types of components. Based on a wide range of biological properties, C. tiglium has a wide range of pharmacological effects, such as antitumor, anti-HIV, analgesic, anti-inflammatory and antibacterial effects. SUMMARY The review aims to provide a critical and comprehensive evaluation of the botany, phytochemistry, pharmacology and toxicity of C. tiglium, with a vision for promoting further pharmaceutical research to explore its complete potential for better clinical application. The tigliane diterpenoids have been the most studied compounds isolated from C. tiglium, which showing a variety of biological activities, but there is insufficient evidence to explain the mechanism of action. In addition, C. tiglium may have potential toxic effects, and it is necessary to reduce the toxic effects to ensure the safety of clinical medication, which may promote the discovery and development of new drugs.
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Affiliation(s)
- Ting Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Zibo Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xue Sun
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Ziqi Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Lilin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Qing Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Wei Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Chunjie Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
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Xia R, Chen LS, Liu LJ, Xia C, Sun LP. Diversity-Oriented Synthesis of 2-Substituted Purine Nucleosides from Available Nucleosides via the Late-Stage Nitration/Derivatization. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Evaluation of Leaf Mineral, Flavonoid, and Total Phenolic Content in Spider Plant Germplasm. Molecules 2021; 26:molecules26123600. [PMID: 34208409 PMCID: PMC8231248 DOI: 10.3390/molecules26123600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 11/17/2022] Open
Abstract
Spider plant (Cleome gynandra L.) is an important leafy vegetable that grows naturally in many parts of the world. The leaves are highly nutritious and are used mainly for human consumption. The mineral content and phenolic compounds of 17 genotypes (local and exotic) of spider plant and four standards (swiss chard, jute mallow, cowpea, and pumpkin) were investigated. Leaf samples were harvested from plants raised at Thohoyandou, South Africa. Exotic genotypes were superior to local genotypes for most of the minerals. Swiss chard possessed significantly high levels of some minerals such as iron and manganese in comparison with exotic spider plant genotypes. The calcium content in the local (‘MP-B-3-CG’) and exotic (‘GPS’) genotypes was >30.0% and >60.0% higher than in swiss chard, respectively. Total phenolics among spider plant genotypes ranged from 9.86 to 12.21 mg GAE/g DW and were superior to pumpkin. In addition, the spider plant genotypes varied significantly in the antioxidant capacity as estimated by the 2,2 diphenyl-1-picrylhydrazyl method and ferric-reducing antioxidant power. The main flavonoid in the leaves of spider plant genotypes was quercetin-3-rutinoside. Crotonoside (glycoside) was detected in all the spider plant genotypes and swiss chard. A positive correlation was observed between total phenolic content and each of the three flavonoids. The PCA biplot associated exotic genotypes (‘ML-SF-29′, ‘PS’, ‘TZ-1’, and ‘GPS’) and local genotypes (‘ML-3-KK’, ‘ML-13-SDM’, and ‘ML-12-TMP’) with high Al, Fe, Zn, N, and TPC. Cluster analysis indicated high “distant groups” between exotic and local genotypes of spider plant. These results indicated that some of the local germplasm of spider plant was largely inferior to the exotic germplasm in terms of their mineral composition but contained considerable quantities of quercetin-3-rutinoside, particularly in the local genotypes ‘MP-B-2-CG’ and ‘MP-B-1-CG’. There is a need for genetic improvement of the local germplasm in some of the minerals particularly to benefit the end-users.
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