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Tarasuk M, Songprakhon P, Muhamad P, Panya A, Sattayawat P, Yenchitsomanus PT. Dual action effects of ethyl-p-methoxycinnamate against dengue virus infection and inflammation via NF-κB pathway suppression. Sci Rep 2024; 14:9322. [PMID: 38654034 PMCID: PMC11039621 DOI: 10.1038/s41598-024-60070-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/18/2024] [Indexed: 04/25/2024] Open
Abstract
Dengue virus (DENV) infection can lead to severe outcomes through a virus-induced cytokine storm, resulting in vascular leakage and inflammation. An effective treatment strategy should target both virus replication and cytokine storm. This study identified Kaempferia galanga L. (KG) extract as exhibiting anti-DENV activity. The major bioactive compound, ethyl-p-methoxycinnamate (EPMC), significantly reduced DENV-2 infection, virion production, and viral protein synthesis in HepG2 and A549 cells, with half-maximal effective concentration (EC50) values of 22.58 µM and 6.17 µM, and impressive selectivity indexes (SIs) of 32.40 and 173.44, respectively. EPMC demonstrated efficacy against all four DENV serotypes, targeting the replication phase of the virus life cycle. Importantly, EPMC reduced DENV-2-induced cytokines (IL-6 and TNF-α) and chemokines (RANTES and IP-10), as confirmed by immunofluorescence and immunoblot analyses, indicating inhibition of NF-κB activation. EPMC's role in preventing excessive inflammatory responses suggests it as a potential candidate for dengue treatment. Absorption, distribution, metabolism, excretion, and toxicity (ADMET) and drug-likeness for EPMC were predicted using SwissADME and ProTox II servers, showing good drug-like properties without toxicity. These findings highlight KG extract and EPMC as promising candidates for future anti-dengue therapeutics, offering a dual-action approach by inhibiting virus replication and mitigating inflammatory reactions.
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Affiliation(s)
- Mayuri Tarasuk
- Graduate Program in Bioclinical Sciences, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Pucharee Songprakhon
- Division of Molecular Medicine, Research Department, and Siriraj Center of Research Excellence for Cancer Immunotherapy (SiCORE-CIT), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Phunuch Muhamad
- Drug Discovery and Development Center, Office of Advanced Science and Technology, Thammasat University, Pathum Thani, Thailand
| | - Aussara Panya
- Cell Engineering for Cancer Therapy Research Group, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Pachara Sattayawat
- Cell Engineering for Cancer Therapy Research Group, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Pa-Thai Yenchitsomanus
- Division of Molecular Medicine, Research Department, and Siriraj Center of Research Excellence for Cancer Immunotherapy (SiCORE-CIT), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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Suryo AP, Meizikri R, Apriawan T, Turchan A, Hendrati LY, Bajamal AH, Parenrengi MA, Utomo B, Fauziah D, Wiratama PA. Effect of Kencur ( Kaempferia galanga L.) Ethanolic Extract Treatment on Cerebral Caspase-3 Expression in Traumatic Brain Injury Rat Models. Malays J Med Sci 2024; 31:43-51. [PMID: 38694581 PMCID: PMC11057826 DOI: 10.21315/mjms2024.31.2.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/21/2023] [Indexed: 05/04/2024] Open
Abstract
Background Traumatic brain injury is one of the most common forms of trauma and causes significant morbidity and mortality. Kencur (Kaempferia galanga L.) ethanolic extract is known to contain substances that could theoretically inhibit unfavourable cellular processes, including oxidative stress and inflammation. This research aimed to study Kencur's anti-apoptosis activity through the inhibition of caspase-3. Methods This is a true experimental post-test-only group design study, using male Wistar rats (Ratus novergicus) with weight-drop-induced traumatic brain injury. The subjects in this study were divided into four groups: two Control groups (Groups A and B) and two Therapy groups (Groups C and D). Groups C and D differed in the dose of Kencur ethanolic extract administered (600 mg/kgBW/day and 1,200 mg/kgBW/day, respectively). The Therapy groups were then subdivided into those receiving therapy for 24 h (C-24 and D-24) and those receiving therapy for 48 h (C-48 and D-48). Caspase-3 expression in brain tissue was evaluated at the end of the therapy using immunohistochemistry. All groups were subjected to a Kruskal-Wallis comparison test and the investigation continued with a Mann-Whitney U test to compare the two groups. Results In traumatic brain injury rat models treated with Kaempferia galanga L. ethanolic extract at doses of 1,200 mg/kgBW/day within 48 h of therapy (D-48) compared to those who were not treated, there was a significant change in the cerebral expression of caspase-3 (P = 0.016). There was also a significant difference between the two doses of intervention (C-24 at 600 mg/kgBW/day and D-48 at 1,200 mg/kgBW/day; P = 0.016). Conclusion With a minimum of 48 h of treatment split into two doses, Kencur (Kaempferia galanga L.) ethanolic extract can decrease caspase-3 expression in rats with traumatic brain injury.
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Affiliation(s)
- Army Pambudi Suryo
- Department of Neurosurgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Rizki Meizikri
- Department of Neurosurgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Tedy Apriawan
- Department of Neurosurgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Agus Turchan
- Department of Neurosurgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Lucia Yovita Hendrati
- Department of Epidemiology, Population, Biostatistics and Health Promotion, Faculty of Public Health, Universitas Airlangga, Surabaya, Indonesia
| | - Abdul Hafid Bajamal
- Department of Neurosurgery, Universitas Airlangga Academic Hospital, Surabaya, Indonesia
| | - Muhammad Arifin Parenrengi
- Department of Neurosurgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Budi Utomo
- Department of Public Health Science and Preventive Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Dyah Fauziah
- Department of Clinical Pathology, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
| | - Priangga Adi Wiratama
- Department of Clinical Pathology, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo Academic General Hospital, Surabaya, Indonesia
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Sharma V, Gogoi B, Borah SN, Ghosh A, Mazumdar A, Kalita RD. In-silico molecular docking and molecular dynamic simulation of γ-elemene and caryophyllene identified from the essential oil of Kaempferia galanga L. against biofilm forming proteins, CrtM and SarA of Staphylococcus aureus. J Biomol Struct Dyn 2024:1-13. [PMID: 38321959 DOI: 10.1080/07391102.2024.2310773] [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: 08/07/2023] [Accepted: 01/21/2024] [Indexed: 02/08/2024]
Abstract
Medicinal plants play an important role as antimicrobials by inhibiting various key targets of diverse microorganisms. A major antimicrobial component of plants is its essential oil, which are increasingly being studied for their antimicrobial properties as well as for their potential role in the inhibition of biofilm formation. In the present study, essential oil from Kaempferia galanga L was isolated resulting in the identification of eleven compounds. Of these, two of the compounds, γ-elemene and caryophyllene were found to dock with the target proteins, CrtM and SarA of Staphylococcus aureus, which are essential for the formation of biofilm. γ-elemene demonstrated the best binding affinity with CrtM with binding energy of -8.1 kcal/mol whereas caryophyllene and its derivative isocaryophyllene showed the best binding with SarA with binding energy -6.1 kcal/mol. ADMET study of the compounds also revealed that the compounds are non-toxic and can be used as probable compounds for inhibition of biofilms. Molecular dynamic simulation studies revealed high affinity of binding and stability of the molecules with their targets. PCA analysis helped in identifying the principal motions occurring within a trajectory that are essential in inducing conformational changes.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Vanshika Sharma
- Department of Biotechnology, Royal School of Biosciences, The Assam Royal Global University, Guwahati, Assam, India
| | - Bhaskarjyoti Gogoi
- Department of Biotechnology, Royal School of Biosciences, The Assam Royal Global University, Guwahati, Assam, India
| | - Siddhartha Narayan Borah
- Department of Biotechnology, Royal School of Biosciences, The Assam Royal Global University, Guwahati, Assam, India
| | - Arabinda Ghosh
- Department of Computational Biology and Biotechnology, Mahapurusha Srimanta Sankardeva Viswavidyalaya, Nagaon, Assam, India
| | - Ajanita Mazumdar
- Department of Molecular Biology and Biotechnology, Cotton University, Guwahati, Assam, India
| | - Ranjan Dutta Kalita
- Department of Biotechnology, Royal School of Biosciences, The Assam Royal Global University, Guwahati, Assam, India
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Sasaki Y, Norikura T, Matsui-Yuasa I, Fujii R, Limantara L, Kojima-Yuasa A. Kaempferia galanga L. extract and its main component, ethyl p-methoxycinnamate, inhibit the proliferation of Ehrlich ascites tumor cells by suppressing TFAM expression. Heliyon 2023; 9:e17588. [PMID: 37408910 PMCID: PMC10319241 DOI: 10.1016/j.heliyon.2023.e17588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/07/2023] Open
Abstract
Kaempferia galanga L. shows anti-cancer effects; however, the underling mechanism remains unclear. In this study, we explored the underlying mechanism of the anti-cancer effects of Kaempferia galanga L. Kaempferia galanga L. rhizome extracts (KGEs) suppressed Ehrlich ascites tumor cell (EATC) proliferation by inhibiting S-phase progression. The main component of KGE is ethyl p-methoxycinnamate (EMC), which exhibits the same anti-proliferative effect as KGE. Furthermore, EMC induced the downregulation of cyclin D1 and upregulation of p21. EMC also decreased the expression of mitochondrial transcription factor A (TFAM) but did not significantly change mitochondrial DNA copy number and membrane potential. Phosphorylation at Ser62 of c-Myc, a transcription factor of TFAM, was decreased by EMC treatment, which might be due to the suppression of H-ras expression. These results indicate that EMC is the active compound responsible for the anti-cancer effect of KGE and suppresses EATC proliferation by regulating the protein expression of cyclin D1 and p21; TFAM may also regulate the expression of these genes. In addition, we investigated the anticancer effects of KGE and EMC in vivo using EATC bearing mice. The volume of ascites fluid was significantly increased by intraperitoneal administration of EATC. However, the increase in the volume of ascites fluid was suppressed by oral administration of EMC and KGE. This study provides novel insights into the association between the anti-cancer effects of natural compounds and TFAM, indicating that TFAM might be a potential therapeutic target.
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Affiliation(s)
- Yutaro Sasaki
- Department of Food and Human Health Sciences, Graduate School of Human Life Science, Osaka City University, Osaka, 558-8585, Japan
| | - Toshio Norikura
- Department of Nutrition, Aomori University of Health and Welfare, Aomori, 030-8505, Japan
| | - Isao Matsui-Yuasa
- Department of Food and Human Health Sciences, Graduate School of Human Life Science, Osaka City University, Osaka, 558-8585, Japan
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, Osaka, 558-8585, Japan
| | - Ritsuko Fujii
- Research Center for Artificial Photosynthesis, Osaka Metropolitan University, Osaka, 558-8585, Japan
| | - Leenawaty Limantara
- Center for Urban Studies, Universitas Pembangunan Jaya, 15413, Banten, Indonesia
| | - Akiko Kojima-Yuasa
- Department of Food and Human Health Sciences, Graduate School of Human Life Science, Osaka City University, Osaka, 558-8585, Japan
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, Osaka, 558-8585, Japan
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5
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Wang SY, Cai L, Yang N, Xu FF, Wu YS, Liu B. Chemical composition of the Kaempferia galanga L. essential oil and its in vitro and in vivo antioxidant activities. Front Nutr 2023; 10:1080487. [PMID: 36819689 PMCID: PMC9932537 DOI: 10.3389/fnut.2023.1080487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Oxidative stress is closely related to the development of many diseases. Essential oils (EOs) show potent antioxidant activity from natural sources. Kaempferia galanga L. is an important medicine rich in high-value essential oil (KGEO). However, the antioxidant activity of KGEO remains to be fully studied. Methods Chemical composition of KGEO was analyzed using gas chromatography-mass spectrometry (GC-MS). The antioxidant activity was determined using the DPPH, ABTS, hydroxyl radical scavenging assays and reducing power assay in vitro. A zebrafish model was used to evaluate the protective effect of KGEO against H2O2-induced oxidative stress damage in vivo. Results The major components of KGEO were found to be trans ethyl p-methoxycinnamate (32.01%), n-pentadecane (29.14%) and trans ethyl cinnamate (19.50%). In vitro pharmacological results showed that KGEO had good free radical scavenging capacity in DPPH, ABTS, and hydroxyl radical scavenging assays (IC50 values: 19.77 ± 1.28, 1.41 ± 0.01, and 3.09 ± 0.34 mg/mL, respectively) and weak reducing capacity in the reducing power assay (EC50 value: 389.38 ± 4.07 mg/mL). In vivo zebrafish experiments results indicated that the survival rate and heart rate increased, and ROS generation, cell death, and lipid peroxidation were attenuated after KGEO treatment. In addition, a decrease in malondialdehyde (MDA) levels and increases in superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities were observed in the KGEO-treated groups. Discussion This study validated the in vitro and in vivo antioxidant activities of KGEO, which provides a theoretical basis for a profound study of KGEO and its application in the pharmaceutical, food and cosmetic industries.
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Affiliation(s)
- Si-Yu Wang
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lei Cai
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Na Yang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fang-Fang Xu
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China
| | - Yun-Shan Wu
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China
| | - Bo Liu
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China,State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangzhou, China,*Correspondence: Bo Liu,
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6
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Singh A, Singh N, Singh S, Srivastava RP, Singh L, Verma PC, Devkota HP, Rahman LU, Kumar Rajak B, Singh A, Saxena G. The industrially important genus Kaempferia: An ethnopharmacological review. Front Pharmacol 2023; 14:1099523. [PMID: 36923360 PMCID: PMC10008896 DOI: 10.3389/fphar.2023.1099523] [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: 11/15/2022] [Accepted: 02/03/2023] [Indexed: 03/01/2023] Open
Abstract
Kaempferia, a genus of the family Zingiberaceae, is widely distributed with more than 50 species which are mostly found throughout Southeast Asia. These plants have important ethnobotanical significance as many species are used in Ayurvedic and other traditional medicine preparations. This genus has received a lot of scholarly attention recently as a result of the numerous health advantages it possesses. In this review, we have compiled the scientific information regarding the relevance, distribution, industrial applications, phytochemistry, ethnopharmacology, tissue culture and conservation initiative of the Kaempferia genus along with the commercial realities and limitations of the research as well as missing industrial linkages followed by an exploration of some of the likely future promising clinical potential. The current review provides a richer and deeper understanding of Kaempferia, which can be applied in areas like phytopharmacology, molecular research, and industrial biology. The knowledge from this study can be further implemented for the establishment of new conservation strategies.
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Affiliation(s)
- Arpit Singh
- Department of Botany, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - Nitesh Singh
- Department of Plant-Pathology, Faculty of Agriculture and Science, SGT University, Gurgaon, India
| | - Sanchita Singh
- Department of Botany, University of Lucknow, Lucknow, Uttar Pradesh, India.,CSIR-National Botanical Research Institute (NBRI), Lucknow, Uttar Pradesh, India
| | | | - Lav Singh
- 4 PG Department of Botany, R.D and D.J. College, Munger University, Munger, India.,Central Academy for State Forest Services, Burnihat, Assam, India
| | - Praveen C Verma
- CSIR-National Botanical Research Institute (NBRI), Lucknow, Uttar Pradesh, India
| | - Hari P Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.,Pharmacy Program, Gandaki University, Pokhara, Nepal
| | - Laiq Ur Rahman
- CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow, Uttar Pradesh, India
| | - Bikash Kumar Rajak
- Department of Bioinformatics, Central University of South Bihar, Gaya, India
| | - Amrita Singh
- Department of Botany, Sri Venkateswara College, University of Delhi, Delhi, India
| | - Gauri Saxena
- Department of Botany, University of Lucknow, Lucknow, Uttar Pradesh, India
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Lei HQ, Li DM, Woo MW, Zeng XA, Han Z, Wang RY. The antihyperglycemic effect of pulsed electric field-extracted polysaccharide of Kaempferia elegans officinale on streptozotocin induced diabetic mice. Front Nutr 2022; 9:1053811. [PMID: 36570142 PMCID: PMC9769402 DOI: 10.3389/fnut.2022.1053811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Kaempferia elegans polysaccharide (KEP) was extracted using a high-voltage pulsed electric field-assisted hot water method. Its physicochemical properties, in vitro activity and hypoglycemic effect was investigated. Experiments were undertaken with diabetic mice models and the potential mechanism of KEP to improve blood glucose levels was unveiled through measurements of relevant indicators in the serum and liver of the mice. Results showed that KEP is mainly composed of glucose, rhamnose, arabinose, and galactose. It has certain DPPH and ABTS free radical scavenging ability and good α-glucosidase inhibitory ability, indicating that KEP has the potential to improve blood glucose levels in diabetes patients. The experimental results of KEP treatment on mice showed that KEP could control the continuous increase of fasting blood glucose levels. The potential mechanisms behind this blood glucose level control composes of (1) increasing the glucokinase and C peptide levels and decreasing Glucose-6-phosphatase content for improving key enzyme activity in the glucose metabolism pathway. This promotes the consumption of blood glucose during glycolysis, thereby inhibiting the production of endogenous glucose in gluconeogenesis pathway; (2) reducing triglyceride, total cholesterol, low density lipoprotein cholesterol, and increasing high density lipoprotein cholesterol content, for regulating blood lipid indicators to normal levels; and (3) by improving the activities of catalase, glutathione peroxidase, and antioxidant enzymes superoxide dismutase for further improving the antioxidant defense system in the body to reduce blood glucose.
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Affiliation(s)
- Huan-Qing Lei
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Dong-Mei Li
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Meng-Wai Woo
- Department of Chemical and Materials Engineering, University of Auckland, Auckland, New Zealand
| | - Xin-An Zeng
- Department of Food Science, Foshan University, Foshan, Guangdong, China,Preparatory Office of Yangjiang Applied Undergraduate College, Yangjiang, China
| | - Zhong Han
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China,Preparatory Office of Yangjiang Applied Undergraduate College, Yangjiang, China,Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China,Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan, China,*Correspondence: Zhong Han,
| | - Ruo-Yong Wang
- Air Force Medical Center People’s Liberation Army, Beijing, China,Ruo-Yong Wang,
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Wang S, Shi X, Li J, Huang Q, Ji Q, Yao Y, Wang T, Liu L, Ye M, Deng Y, Ma P, Xu H, Yang G. A Small Molecule Selected from a DNA-Encoded Library of Natural Products That Binds to TNF-α and Attenuates Inflammation In Vivo. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201258. [PMID: 35596609 PMCID: PMC9313502 DOI: 10.1002/advs.202201258] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/24/2022] [Indexed: 05/06/2023]
Abstract
Tumor necrosis factor α (TNF-α) inhibitors have shown great success in the treatment of autoimmune diseases. However, to date, approved drugs targeting TNF-α are restricted to biological macromolecules, largely due to the difficulties in using small molecules for pharmaceutical intervention of protein-protein interactions. Herein the power of a natural product-enriched DNA-encoded library (nDEL) is exploited to identify small molecules that interfere with the protein-protein interaction between TNF-α and the cognate receptor. Initially, to select molecules capable of binding to TNF-α , "late-stage" DNA modification method is applied to construct an nDEL library consisted of 400 sterically diverse natural products and pharmaceutically active chemicals. Several natural products, including kaempferol, identified not only show direct interaction with TNF-α, but also lead to the blockage of TNF-α/TNFR1 interaction. Significantly, kaempferol attenuates the TNF-α signaling in cells and reduces the 12-O-tetradecanoylphorbol-13-acetateinduced ear inflammation in mice. Structure-activity-relationship analyses demonstrate the importance of substitution groups at C-3, C-7, and C-4' of kaempferol. The nDEL hit, kaempferol, represents a novel chemical scaffold capable of specifically recognizing TNF-α and blocking its signal transduction, a promising starting point for the development of a small molecule TNF-α inhibitor for use in the clinical setting.
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Affiliation(s)
- Shuyue Wang
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
- School of Life Science and TechnologyShanghaiTech UniversityShanghai201210P. R. China
- Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai200031P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xiaojie Shi
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
| | - Jie Li
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
| | - Qianping Huang
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
- School of Life Science and TechnologyShanghaiTech UniversityShanghai201210P. R. China
- Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai200031P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Qun Ji
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
| | - Ying Yao
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
- School of Life Science and TechnologyShanghaiTech UniversityShanghai201210P. R. China
- Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai200031P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Tao Wang
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
- School of Life Science and TechnologyShanghaiTech UniversityShanghai201210P. R. China
- Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai200031P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Lili Liu
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijing100871P. R. China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine ResourcesSchool of PharmacyChengdu University of Traditional Chinese MedicineChengduSichuan611137P. R. China
| | - Peixiang Ma
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
- Shanghai Key Laboratory of Orthopedic ImplantsDepartment of Orthopedic SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai200011P. R. China
| | - Hongtao Xu
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
| | - Guang Yang
- Shanghai Institute for Advanced Immunochemical StudiesShanghaiTech UniversityShanghai201210P. R. China
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Wahyuni IS, Sufiawati I, Nittayananta W, Levita J. Anti-Inflammatory Activity and Wound Healing Effect of Kaempferia galanga L. Rhizome on the Chemical-Induced Oral Mucosal Ulcer in Wistar Rats. J Inflamm Res 2022; 15:2281-2294. [PMID: 35422649 PMCID: PMC9005153 DOI: 10.2147/jir.s359042] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/17/2022] [Indexed: 12/14/2022] Open
Abstract
Introduction Kaempferia galanga L. (K. galanga; local name kencur, Zingiberaceae) is a plant commonly used as a kitchen spice, and empirically it is often used for medicinal purposes. This plant has been shown to have an anti-inflammatory role, but no research has been found on its effect on oral mucosal ulcer. This study aimed to investigate anti-inflammatory activity and wound healing effect of the ethanol extract of K. galanga L. rhizome (EEKG) on the chemical-induced oral mucosal ulcer in Wistar rats. Methods In this study, 35 rats were divided into 7 groups (normal, negative, triamcinolone acetonide, and 4 EEKG groups). Acetic acid 70% was used as the oral mucosal ulcer inducer. Parameters observed were macroscopic and microscopic histopathological examinations. Results The results revealed that dose of 0.5% of the EEKG was effective in increasing the percent recovery of ulcer area and inflammation sign scores. Meanwhile, doses of 0.5–2% of EEKG were effective in reducing the histopathological score. Interestingly, topical EEKG in our study was more effective compared with triamcinolone acetonide (the conventional therapy for oral mucosal ulceration). Discussion The EEKG has been confirmed its anti-inflammatory activity by accelerating the healing process on the chemical-induced oral mucosal ulcer in Wistar rats, based on the percent recovery of the ulcer area, the percent recovery of the inflammation sign score, and the histopathology score. Conclusion Taken together, K. galanga L. is very potential to be developed as a prospective phytopharmaceutical for the treatment of oral mucosal ulceration in human after clinical trials.
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Affiliation(s)
- Indah Suasani Wahyuni
- Doctoral Program in Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, West Java, Indonesia
- Department of Oral Medicine, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
- Correspondence: Indah Suasani Wahyuni, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang km 21, Jatinangor-Sumedang, West Java, 45363, Indonesia, Tel +62-842-888888 Ext: 3510, Email
| | - Irna Sufiawati
- Department of Oral Medicine, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
| | | | - Jutti Levita
- Doctoral Program in Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, West Java, Indonesia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, West Java, Indonesia
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