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Nirmal N, Koirala P, Khanashyam AC, Panichayupakaranant P, Septama AW. Combined effect of brazilin-rich extract and lawsone methyl ether against infection-causing bacteria. Saudi J Biol Sci 2024; 31:103999. [PMID: 38646564 PMCID: PMC11031759 DOI: 10.1016/j.sjbs.2024.103999] [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: 03/21/2024] [Revised: 04/06/2024] [Accepted: 04/14/2024] [Indexed: 04/23/2024] Open
Abstract
Bacterial contamination and infection widely affect the food, pharmaceutical and biomedical industries. Additionally, these bacteria developed resistance to synthetic antibiotics causing public health danger, globally. Natural plant extracts (NPE) are suitable alternatives to synthetic antibiotics to tackle antimicrobial resistance problems. Furthermore, a blend or combination of different NPEs exerts a wide spectrum of antimicrobial activity. Therefore, the combined effect of brazilin-rich extract (BRE) and lawsome methyl ether (LME) against infection-causing common bacteria were evaluated. BRE had a lower minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against most of the Gram-negative bacteria (Salmonella typhi, Salmonella typhimurium and Pseudomonas aeruginosa) while LME was active against most of the Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus, and Staphylococcus epidermidis). The combination of BRE and LME at 2:1 and 1:1 concentration significantly reduced the MIC value of each compound as compared to either BRE or LME concentration alone (P < 0.05). Further time-kill kinetics revealed a 3.0-3.5 log reduction in Gram-positive bacteria and a 2.5-3.0 log reduction in Gram-negative bacteria during 120 min of incubation, respectively. Therefore, a combination of BRE and LME was recommended as natural antibacterial to synthetic antibiotics for food and pharmaceutical applications.
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Affiliation(s)
- Nilesh Nirmal
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Pankaj Koirala
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Anandu Chandra Khanashyam
- Deaprtment of Food Science and Nutrition, University of Minnesota, 1334 Eckles Ave, St Paul, MN 55108, United States
| | - Pharkphoom Panichayupakaranant
- Phytomedicine and Pharmaceutical Biotechnology Excellence center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkla Thailand
| | - Abdi Wira Septama
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, National Research and Innovation Agency (BRIN), KST Soekarno, Cibinong, Jawa Barat, 16911, Indonesia
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2
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Liu J, Han X, Yu L, Zhang J, Huang S, Yang X, Chang H. Chemoenzymatic formal synthesis of (+)-brazilin. Nat Prod Res 2024:1-11. [PMID: 38712549 DOI: 10.1080/14786419.2024.2349255] [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: 02/23/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Herein, the manuscript presents a chemoenzymatic formal synthetic route of (+)-brazilin, a homoisoflavonoid natural product with a chroman skeleton cis-fused with a 2,3-dihydro-1H-indene unit, which is isolated from the traditional Chinese medicine, Caesalpinia sappan L. The key feature of the synthetic strategy includes an enzyme-mediated desymmetrization by employing lipase from Candida antarctica type B (CALB) and a one-pot SN2/hydrolysis reaction.
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Affiliation(s)
- Jiangtao Liu
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xue Han
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Liuping Yu
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Jiandong Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Shuangping Huang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xihua Yang
- Laboratory Animal Center, Shanxi Cancer Institute, Taiyuan, China
| | - Honghong Chang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
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3
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Raptania CN, Zakia S, Fahira AI, Amalia R. Article review: Brazilin as potential anticancer agent. Front Pharmacol 2024; 15:1355533. [PMID: 38515856 PMCID: PMC10955326 DOI: 10.3389/fphar.2024.1355533] [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: 12/14/2023] [Accepted: 02/14/2024] [Indexed: 03/23/2024] Open
Abstract
Brazilin is the main compound in Caesalpinia sappan and Haematoxylum braziletto, which is identified as a homoisoflavonoid based on its molecular structure. These plants are traditionally used as an anti-inflammatory to treat fever, hemorrhage, rheumatism, skin problems, diabetes, and cardiovascular diseases. Recently, brazilin has increased its interest in cancer studies. Several findings have shown that brazilin has cytotoxic effects on colorectal cancer, breast cancer, lung cancer, multiple myeloma, osteosarcoma, cervical cancer, bladder carcinoma, also other cancers, along with numerous facts about its possible mechanisms that will be discussed. Besides its flavonoid content, brazilin is able to chelate metal ions. A study has proved that brazilin could be used as an antituberculosis agent based on its ability to chelate iron. This possible iron-chelating of brazilin and all the studies discussed in this review will lead us to the statement that, in the future, brazilin has the potency to be a chemo-preventive and anticancer agent. The article review aimed to determine the brazilin mechanism and pathogenesis of cancer.
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Affiliation(s)
- Callista Najla Raptania
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
| | - Syifa Zakia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
| | - Alistia Ilmiah Fahira
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
- Laboratory of Cell and Molecular Biology, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
| | - Riezki Amalia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
- Laboratory of Cell and Molecular Biology, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
- Center of Excellence in Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
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4
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Mahdavi M, Findlay BL. Discovery of an adjuvant that resensitizes polymyxin B-resistant bacteria. Bioorg Med Chem 2024; 97:117541. [PMID: 38096681 DOI: 10.1016/j.bmc.2023.117541] [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: 08/22/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 12/30/2023]
Abstract
Infections caused by antibiotic-resistant bacteria are a major threat to health, increasing mortality rates and straining health systems worldwide. Adjuvants targeted to beta-lactamase function are able to resensitize bacteria to beta-lactam antibiotics, but there is comparatively little research into the use of adjuvants against other resistance phenotypes. In this study, we performed a high-throughput screen of 74 natural products to identify adjuvants that synergized with antibiotics to eradicate resistant Gram-negative bacteria. From this, we identified six adjuvant hits which restored growth inhibition when combined with the relevant antibiotic, and pursued a lead candidate, perforone, which possessed selective adjuvant activity in combination with polymyxin B against polymyxin-resistant Escherichia coli cells. These results suggest that pairing adjuvants with antibiotics could be a useful general intervention against resistant bacteria, helping to mitigate the effects of antimicrobial resistance.
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Affiliation(s)
- Michael Mahdavi
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada
| | - Brandon L Findlay
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada; Department of Biology, Concordia University, Montréal, Québec, Canada.
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5
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Chaisri W, Suebsakwong P, Pandith H, Panya A, Taynawa K, Pikulkaew S, Suriyasathaporn W, Okonogi S, Khonkarn R. Effects of Encapsulation of Caesalpinia sappan L. with Cyclodextrins for Bovine Mastitis. AAPS PharmSciTech 2023; 24:230. [PMID: 37964017 DOI: 10.1208/s12249-023-02687-5] [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: 08/09/2023] [Accepted: 10/24/2023] [Indexed: 11/16/2023] Open
Abstract
The main components of Caesalpinia sappan L. (CS) are brazilin and brazilein, which show high potential in pharmacologic applications. However, these have been drastically limited by the poor water solubility and stability. The present study investigates the formation of inclusion complexes F1, F2, and F3 between CS and β-cyclodextrin (βCD), hydroxypropyl-β-cyclodextrin (HPβCD), and methyl-β-cyclodextrin (MβCD), respectively. These complexes were characterized by Fourier transform infrared spectroscopy (FT-IR). The results showed that the highest encapsulation efficiency and loading capacity of CS extract were 44.24% and 9.67%, respectively. The solubility and stability of CS extract were significantly increased through complexation in phase solubility and stability studies. The complexes F1-F3 showed mainly significant antibacterial activities on gram-positive bacteria pathogens causing mastitis. Moreover, the expression levels of COX-2 and iNOS were significantly decreased in LPS-induced inflammatory cells at concentrations of 50 and 100 µg/mL. In addition, treatment of complex F3 (CS/MβCD) in bovine endothelial cells remarkably increased the chemokine gene expression of CXCL3 and CXCL8, which were responsible for immune cell recruitment (9.92 to 11.17 and 8.23 to 9.51-fold relative to that of the LPS-treated group, respectively). This study provides a complete characterization of inclusion complexes between CS extract and βCD, HPβCD, and MβCD for the first time, highlighting the impact of complex formation on the pharmacologic activities of bovine mastitis.
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Affiliation(s)
- Wasana Chaisri
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Parichat Suebsakwong
- Center of Excellent in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Hataichanok Pandith
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Aussara Panya
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Kraisorn Taynawa
- Center of Excellent in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Surachai Pikulkaew
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Witaya Suriyasathaporn
- Department of Food Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cambodia Campus, Asian Satellite Campuses Institute, Nagoya University, Nagoya, 464-8601, Japan
| | - Siriporn Okonogi
- Center of Excellent in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Ruttiros Khonkarn
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Center of Excellent in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Pattananandecha T, Apichai S, Julsrigival J, Ogata F, Kawasaki N, Saenjum C. Antibacterial Activity against Foodborne Pathogens and Inhibitory Effect on Anti-Inflammatory Mediators' Production of Brazilin-Enriched Extract from Caesalpinia sappan Linn. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11131698. [PMID: 35807650 PMCID: PMC9269513 DOI: 10.3390/plants11131698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 05/08/2023]
Abstract
Caesalpinia sappan L. heartwood was collected from Mae Chaem District, Chiang Mai Province, Thailand. Crude extracts were prepared by Soxhlet’s extraction using 50, 60, and 70% of ethanol (EtOH) at 50, 60, and 70 °C, and the brazilin content was measured using reversed-phase high performance liquid chromatography (RP-HPLC). The antibacterial activity against foodborne pathogens and anti-inflammatory aspects were investigated. C. sappan, prepared from 70% EtOH at 70 °C (E70T70), significantly (p < 0.05) exhibited the highest amount of brazilin (7.90 ± 0.50% w/w). All extracts were investigated for anti-inflammatory activity through an inhibition effect on nitric oxide (NO) and inducible nitric oxide synthase (iNOS) production in RAW264.7 mouse macrophage cells. The inhibitory effect on cyclooxygenase-2 (COX-2) production in HT-29 and HCT116 was also studied. All the extracts inhibited NO, iNOS, and COX-2 production induced by combined lipopolysaccharide and interferon-γ, especially E70T70, indicating the highest inhibition effect among other extracts. Additionally, E70T70 was selected to determine the antibacterial activity against foodborne pathogens, including Staphylococcus aureus, Escherichia coli, Salmonella enteritidis, and Vibrio parahaemolyticus. The result showed that 200 µg/mL extract reduced all test pathogens 100% at 24 h. These results suggested the potential of using C. sappan L. extract as a natural preservative in food and a natural active pharmaceutical ingredient.
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Affiliation(s)
- Thanawat Pattananandecha
- Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand; (T.P.); (S.A.); (J.J.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sutasinee Apichai
- Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand; (T.P.); (S.A.); (J.J.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jakaphun Julsrigival
- Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand; (T.P.); (S.A.); (J.J.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Fumihiko Ogata
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashiosaka 577-8502, Japan; (F.O.); (N.K.)
| | - Naohito Kawasaki
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashiosaka 577-8502, Japan; (F.O.); (N.K.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashiosaka 577-8502, Japan
| | - Chalermpong Saenjum
- Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand; (T.P.); (S.A.); (J.J.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel.: +66-89-950-4227
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7
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Xu D, Liu J, Han X, Huang S, Yang X. A novel total synthesis of (+)-brazilin. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2047732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Dongdong Xu
- College of Biomedical Engineering, Taiyuan University of Technology, Jinzhong, China
| | - Jiangtao Liu
- College of Biomedical Engineering, Taiyuan University of Technology, Jinzhong, China
| | - Xue Han
- College of Biomedical Engineering, Taiyuan University of Technology, Jinzhong, China
| | - Shuangping Huang
- College of Biomedical Engineering, Taiyuan University of Technology, Jinzhong, China
| | - Xihua Yang
- Laboratory Animal Center, Shanxi Cancer Institute, Taiyuan, China
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8
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Martwong E, Tran Y, Natsrita N, Kaewpang C, Kongsuk K, Nakaramontri Y, Sukhawipat N. A Potential of New Untreated Bio-Reinforcement from Caesalpinia sappan L. Wood Fiber for Polybutylene Succinate Composite Film. Polymers (Basel) 2022; 14:polym14030499. [PMID: 35160488 PMCID: PMC8838579 DOI: 10.3390/polym14030499] [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: 01/06/2022] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Natural cellulose-based Caesalpinia sappan L. wood fiber (CSWF) has been demonstrated to have significant promise as a new untreated bio-reinforcement of the polybutylene succinate (PBS) composite film. The morphology, mechanical characteristics, and biodegradation were investigated. The morphology, the fiber distribution, and the fiber aggregation has been discussed. The properties of the composite have been improved by the addition of CSWF from 5 phr to 10 phr, while with the addition of 15 phr, the properties were dropped. The result showed that CSWF could be used as a new reinforcement without any treatment, and 10 phr of CSWF was the best formulation of a new biocomposite film. The PBS/CSWF10 composite film had the highest mechanical strength, with a tensile strength of 12.21 N/mm2 and an elongation at break of 21.01%, respectively. It was completely degraded by soil bury in three months. Therefore, the PBS/CSWF10 composite film has the potential to be a green with a promising short-term degradation.
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Affiliation(s)
- Ekkachai Martwong
- Division of Science, Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi, Phra Nakhon Si Ayutthaya 13000, Thailand
| | - Yvette Tran
- Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, CNRS, F-75005 Paris, France
| | - Nattawadee Natsrita
- Division of Polymer Engineering Technology, Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
| | - Chaithip Kaewpang
- Division of Polymer Engineering Technology, Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
| | - Kittisak Kongsuk
- Division of Polymer Engineering Technology, Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
| | - Yeampon Nakaramontri
- Sustainable Polymer & Innovative Composite Materials Research Group, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Nathapong Sukhawipat
- Division of Polymer Engineering Technology, Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
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9
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Brazilin: Biological activities and therapeutic potential in chronic degenerative diseases and cancer. Pharmacol Res 2021; 175:106023. [PMID: 34883212 DOI: 10.1016/j.phrs.2021.106023] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/17/2021] [Accepted: 12/03/2021] [Indexed: 12/26/2022]
Abstract
Caesalpinia sappan and Haematoxylum brasiletto belong to the Fabaceae family, predominantly distributed in Southeast Asia and America. The isoflavonoid brazilin has been identified from the bark and heartwood of these plants. This review summarizes the studies describing the biological activities of these plants and brazilin. Mainly, brazilin protects cells from oxidative stress, shows anti-inflammatory and antibacterial properties, and hypoglycemic effect. In addition, it has a biological impact on various pathologies such as Alzheimer's disease, Parkinson's disease, fibrillogenesis, and osteoarthritis. Interestingly, most of the antecedents are related to the anticancer effect of brazilin. In several cancers such as osteosarcoma, neuroblastoma, multiple myeloma, glioblastoma, bladder, melanoma, breast, tongue, colon, cervical, head, and neck squamous cell carcinoma, brazilin induces autophagy by increasing the levels of the LC3-II protein. Furthermore, it inhibits cell proliferation and induces apoptosis through increased expression of Bcl-2, Bcl-XL, p21, p27, activation of caspase-3 and -7, and the cleavage of PARP and inhibiting the expression of Bax. In addition, it blocks the expression of JNK and regulates the nuclear translocation of Nrf2. Together, these data positions brazilin as a compound of natural origin with multiple bioactivities and therapeutic potential in various chronic degenerative diseases and cancer.
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10
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Effect of Ethanolic Caesalpinia sappan Fraction on In Vitro Antiviral Activity against Porcine Reproductive and Respiratory Syndrome Virus. Vet Sci 2021; 8:vetsci8060106. [PMID: 34207801 PMCID: PMC8229879 DOI: 10.3390/vetsci8060106] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 12/16/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) is a major epidemic in pig production, leading to economic losses in the pig industry worldwide. The use of medicinal plants with antiviral properties might be useful help to prevent and control PRRSV outbreaks. Caesalpinia sappan (CS) heartwood is an important herbal ingredient used in Thai folk medicine, possessing various biological activities, including antiviral activity. The present study focuses on the in vitro antiviral activity against PRRSV of a semi-purified fraction of ethanolic CS crude extract using preparative high-performance liquid chromatography. Qualification of the fractions illustrating positive antiviral activity was carried out with liquid chromatography–quadrupole time-of-flight mass spectrometry. The preparative chromatography separated the crude extract into six consecutive fractions, among which the first fraction showed potential antiviral activity by inhibiting PRRSV replication in a MARC-145 monolayer (virus titer 2.75 median tissue culture infective dose (TCID50)/mL (log10) vs. 9.50 median log10 TCID50/mL of the control) at 72 h post-infection, and this fraction included byakangelicin, brazilin, naringenin, and brazilein. These results provide useful information for further study to effectively develop the CS bioactive antiviral compounds against PRRSV as a feed additive or veterinary drug in the pig industry.
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11
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Guo X, Xue Z, Xu D, Tu Q, Chang H, Yang X, Huang S. Total synthesis of (-)-brazilane via a lipase-catalyzed desymmetrisation reaction. Nat Prod Res 2021; 36:5125-5133. [PMID: 33970713 DOI: 10.1080/14786419.2021.1922403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Herein, we described the asymmetric total synthesis of (-)-brazilane, an optically active natural product. The key steps of this synthetic approach are a lipase-catalyzed desymmetrisation reaction of a prochiral diol using vinyl acetate to prepare a chiral primary alcohol and a trifluoroacetic acid-catalyzed one pot intramolecular tandem Prins/Friedel-Crafts reaction used to construct the cis-fused chromane and indane framework.
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Affiliation(s)
- Xiaofeng Guo
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Zhiwei Xue
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Dongdong Xu
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Qidong Tu
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, P.R. China
| | - Honghong Chang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xihua Yang
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, P.R. China
| | - Shuangping Huang
- Laboratory Animal Center, Shanxi Cancer Institute, Taiyuan, China
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12
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Bao M, Zhang L, Liu B, Li L, Zhang Y, Zhao H, Ji X, Chen Q, Hu M, Bai J, Pang G, Yi J, Tan Y, Lu C. Synergistic effects of anti-MRSA herbal extracts combined with antibiotics. Future Microbiol 2020; 15:1265-1276. [PMID: 33026882 DOI: 10.2217/fmb-2020-0001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
MRSA is a super drug-resistant bacterium. Developing new drug or therapeutic strategies against MRSA is urgently needed. Increasing evidence has shown that herbal extracts and antibiotics can have synergistic effects against MRSA. This review focuses on commonly used antibiotics combined with herbal extracts against MRSA and the corresponding mechanisms. Through systematic analysis, we found that herbal extracts combined with antibiotics, such as β-lactams, quinolones, aminoglycosides, tetracyclines and glycopeptides, could greatly enhance the antibacterial effects of the antibiotics, reduce the dosage and toxic side effects, and reverse MRSA resistance. Therefore, we conclude that herbal extracts combined with antibiotics may be a promising strategy to combat MRSA. This review provides a novel idea for overcoming antibiotic resistance.
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Affiliation(s)
- Mei Bao
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lulu Zhang
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bin Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yin Zhang
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Heru Zhao
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xinyu Ji
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qing Chen
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Mingliang Hu
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jingan Bai
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guoming Pang
- Kaifeng Hospital of Traditional Chinese Medicine, Kaifeng, China
| | - Jianfeng Yi
- Key Laboratory for Research on Active Ingredients in Natural Medicine of Jiangxi Province, Yichun University, Yichun, China
| | - Yong Tan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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13
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Catechin isolated from cashew nut shell exhibits antibacterial activity against clinical isolates of MRSA through ROS-mediated oxidative stress. Appl Microbiol Biotechnol 2020; 104:8279-8297. [PMID: 32857200 DOI: 10.1007/s00253-020-10853-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/09/2020] [Accepted: 08/23/2020] [Indexed: 01/16/2023]
Abstract
Staphylococcus aureus causes severe infections and among all methicillin-resistant S. aureus (MRSA) remains a great challenge in spite of decade research of antibacterial compounds. Even though some synthetic antibiotics have been developed, they are not effective against MRSA, and hence, there is a search for natural, alternative and plant-based antibacterial compound. In this connection, catechin isolated from cashew nut shell was investigated for its antibacterial potential against MRSA. Catechin exhibited zone of inhibition (ZOI) and minimum inhibitory concentration (MIC) in a range of 15.1-19.5 mm and 78.1-156.2 μg/ml, respectively, against ATCC and clinical isolates of MRSA. Among all clinical isolates, clinical isolate-3 exhibited highest sensitivity to catechin. Catechin has arrested the growth of MRSA strains and also caused toxicity by membrane disruption which was illustrated by AO/EB fluorescence staining. Increased nucleic acid leakage (1.58-28.6-fold) and protein leakage (1.40-23.50-fold) was noticed in MRSA due to catechin treatment when compared to methicillin. Bacteria treated with catechin at its MIC showed 1.52-, 1.87- and 1.74-fold increase of ROS production in methicillin susceptible S. aureus (MSSA), MRSA and clinical isolate-3 strains, respectively, as compared to control. Superoxide dismutase (5.31-9.63 U/mg protein) and catalase (1573-3930 U/mg protein) were significantly decreased as compared to control in catechin-treated S. aureus. Thus, catechin exhibited antibacterial activity through oxidative stress by increased production of ROS and decreased antioxidant enzymes. Altogether results suggest that catechin is a promising lead compound with antibacterial potential against MRSA. KEY POINTS: • Catechin was isolated and identified as active compound in cashew nut shell. • Catechin exhibited antimicrobial activity against clinical isolates of MRSA. • Bacterial cell wall damage was caused by catechin in MRSA strains. • Catechin increased the oxidative stress in MRSA by intracellular ROS production.
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14
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Huang S, Ou W, Li W, Xiao H, Pang Y, Zhou Y, Wang X, Yang X, Wang L. A total synthesis of (+)-brazilin. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Puttipan R, Chansakaow S, Khongkhunthian S, Okonogi S. Caesalpinia sappan: A promising natural source of antimicrobial agent for inhibition of cariogenic bacteria. Drug Discov Ther 2019; 12:197-205. [PMID: 30224592 DOI: 10.5582/ddt.2018.01035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
From the previous findings, the ethanolic fractionated extract of Caesalpinia sappan (F-EtOH) has high activity against Streptococcus mutans, the most severe cariogenic bacteria. The present study was aimed to isolate and identify the active compound of F-EtOH and compare its inhibitory activity against the biofilm of S. mutans as well as the cytotoxicity to oral fibroblast cells with F-EtOH. Compound isolation was done by column chromatography. The active compound was identified using liquid chromatography-mass spectrometry with electrospray ionization and nuclear magnetic resonance spectroscopy. It was found that the major compound of F-EtOH is brazilin. F-EtOH and brazilin were compared for inhibitory potential on the biofilms of three strains of S. mutans. The results exhibited that both F-EtOH and brazilin had potential on inhibiting biofilm formation and eradicating the preformed biofilms and their activity was dose dependent. F-EtOH showed significantly less toxic to normal periodontal ligament fibroblast than brazilin. At low concentration of 1- and 2-MBC, F-EtOH showed higher effective than brazilin. The results of our study suggest that the antibacterial activity of F-EtOH is according to the synergistic effects of the existing compounds including brazilin in F-EtOH.
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Affiliation(s)
- Rinrampai Puttipan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University
| | - Sunee Chansakaow
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University
| | - Sakornrat Khongkhunthian
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
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16
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Puttipan R, Wanachantararak P, Khongkhunthian S, Okonogi S. Effects of Caesalpinia sappan on pathogenic bacteria causing dental caries and gingivitis. Drug Discov Ther 2019; 11:316-322. [PMID: 29332889 DOI: 10.5582/ddt.2017.01055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The present study explores antimicrobial activities of Caesalpinia sappan extracts against three strains of oral pathogenic bacteria; Streptococcus mutans DMST9567 (Smu9), Streptococcus mutans DMST41283 (Smu4), and Streptococcus intermedius DMST42700 (Si). Ethanol crude extract of C. sappan (Cs-EtOH) was firstly compared to that of other medicinal plants using disc diffusion method. Cs-EtOH showed significantly higher effective inhibition against all tested strains than other extracts and 0.12% chlorhexidine with the inhibition zone of 17.5 ± 0.5, 18.5 ± 0.0, and 17.0 ± 0.0 mm against Smu9, Smu4, and Si, respectively. Three fractionated extracts of C. sappan using hexane, ethyl acetate, and ethanol, respectively, were further investigated. The fractionated extract from ethanol (F-EtOH) presented the strongest activities with the minimum bactericidal concentration (MBC) of 125-250 µg/mL. Killing kinetics of F-EtOH was depended on the bacterial species and the concentration of F-EtOH. Two-fold MBC of F-EtOH could kill all tested strains within 12 h whereas its 4-fold MBC showed killing effect against Si within 6 h. Separation of F-EtOH by column chromatography using chloroform/methanol mixture as an eluent yielded 11 fractions (F1-F11). The fingerprints of these fractions by high-performance liquid chromatography at 280 nm revealed that F-EtOH consisted of at least 5 compounds. F6 possessed the significantly highest antimicrobial activity among 11 fractions, however less than F-EtOH. It is considered that F-EtOH is the promising extract of C. sappan for inhibiting oral pathogenic bacteria and appropriate as natural antiseptic for further develop of oral hygiene products.
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Affiliation(s)
- Rinrampai Puttipan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
| | | | - Sakornrat Khongkhunthian
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University.,Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
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17
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Huang M, Duan S, Ma X, Cai B, Wu D, Li Y, Li L, Zhang H, Yang X. Synthesis and antitumor activity of aza-brazilan derivatives containing imidazolium salt pharmacophores. MEDCHEMCOMM 2019; 10:1027-1036. [PMID: 31341578 DOI: 10.1039/c9md00112c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/07/2019] [Indexed: 01/22/2023]
Abstract
The synthesis of a series of novel aza-brazilan derivatives containing imidazolium salt pharmacophores is presented. The biological activity of such imidazolium salts was further evaluated in vitro against a panel of human tumor cell lines. The results suggest that the electron-withdrawing group on the aza-brazilan moiety, substituted 5,6-dimethyl-benzimidazole ring and substitution of the imidazolyl-3-position with a 4-methylbenzyl group were essential for modulating the cytotoxic activity. Compounds 55 and 39, bearing a 4-methylbenzyl substituent at position-3 of 5,6-dimethyl-benzimidazole, were found to be the most potent compounds with IC50 values of 0.52-1.30 μM and 0.56-1.51 μM against four human tumor cell lines investigated. Particularly, compound 57 exhibited inhibitory activity against the MCF-7 cell line with an IC50 value of 0.35 μM and was 56-fold more sensitive than DDP. Moreover, compound 55 inhibited cell proliferation through inducing G0/G1 cell cycle arrest and apoptosis in SMMC-7721 cells.
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Affiliation(s)
- Mingqin Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
| | - Shengzu Duan
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
| | - Xueqiong Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
| | - Bicheng Cai
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119.,State Key Laboratory for Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Science , Kunming , 650204 , P. R. China .
| | - Dongmei Wu
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119.,State Key Laboratory for Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Science , Kunming , 650204 , P. R. China .
| | - Yan Li
- State Key Laboratory for Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Science , Kunming , 650204 , P. R. China .
| | - Liang Li
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry of Education and Yunnan Province , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , P. R. China . ; ; ; Tel: +86 871 65031119
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18
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Abegaz BM, Kinfe HH. Naturally Occurring Homoisoflavonoids: Phytochemistry, Biological Activities, and Synthesis (Part II). Nat Prod Commun 2019. [DOI: 10.1177/1934578x19845813] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This review documents all the new homoisoflavonoids (HIFs) that have been reported since 2007, whose total number has grown from 159 in 2007 to 295 at the present time. This review contains their structures, biological sources, plant parts they are obtained from, and, if reported, their optical rotations and melting points. The same classification is followed as an earlier review to ease reference to both reviews. This review takes note of the recent revision of plant families that were known to contain HIFs that have now been merged into one big family, Asparagaceae. Homoisoflavonoids also occur in Fabaceae and others. Two taxa, Ophiopogoan japonicus (Asparagaceae) and Caesalpinia sappan (Fabaceae), have been the source of many HIFs. These are briefly summarized. The biological properties of HIFs are also reviewed under the topics such as antioxidant, anti-inflammatory, antimicrobial, antidiabetic, and cytotoxic. The review also surveys the total synthesis of natural HIFs. All new compounds are classified and tabulated following the same style as the previous review. Dedicated to Professor Andrew Paul Krapcho on the occasion of his 87th Birthday.
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Affiliation(s)
- Berhanu M Abegaz
- Stellenbosch Institute for Advanced Study, Wallenberg Research Centre at Stellenbosch University, South Africa
- Department of Chemistry, Center of Synthesis and Catalysis, University of Johannesburg, South Africa
| | - Henok H Kinfe
- Department of Chemistry, Center of Synthesis and Catalysis, University of Johannesburg, South Africa
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19
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Abegaz BM, Mutanyatta-Comar J, Nindi M. Naturally Occurring Homoisoflavonoids: Phytochemistry, Biological Activities and Synthesis. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200418] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This review covers the phytochemical, biological properties, and synthesis of naturally occurring homoisoflavonoids. Homoisoflavonoids are a very important class of secondary metabolites whose numbers have grown from 20 in 1981 to 157 at the present time. They are found to occur in seven plant families. For the purpose of this review they are classified into five groups: 3-benzylchroman-4-ones, 3-benzylflavans, Δ3,9 and Δ2,3 3-benzylchroman-4-ones, benzocyclobutenes (scillascillins) and rearranged homoisoflavonoids (brazilin and related compounds). Biosynthetically, the 3-benzylchroman-4-ones and the 3-hydroxy-derivatives have been shown to arise from a chalcone precursor (sappanchalcone) and there is strong evidence that this isolable intermediate can be converted into the diverse structures such as the benzocyclobutenes (scillascillins) and the rearranged, brazilin-type compounds. Homoisoflavonoids possess a wide range of biological activities, including, antimicrobial, antimutagenic, anti-inflammatory, antidiabetic, etc, properties. The review also surveys the chemical synthesis of natural homoisoflavonoids. Analytical methods for the determination of these important metabolites are also reviewed. The last section is devoted to a brief review of the diagnostic NMR spectroscopic features of homoisoflavonoids. A comprehensive Table has also been compiled listing all known metabolites, their sources, melting points and optical rotation values (where available) and references.
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Affiliation(s)
- Berhanu M. Abegaz
- Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana
| | - Joan Mutanyatta-Comar
- Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana
| | - Mathew Nindi
- Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana
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20
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Wan YJ, Xu L, Song WT, Liu YQ, Wang LC, Zhao MB, Jiang Y, Liu LY, Zeng KW, Tu PF. The Ethanolic Extract of Caesalpinia sappan Heartwood Inhibits Cerebral Ischemia/Reperfusion Injury in a Rat Model Through a Multi-Targeted Pharmacological Mechanism. Front Pharmacol 2019; 10:29. [PMID: 30804781 PMCID: PMC6370896 DOI: 10.3389/fphar.2019.00029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 01/11/2019] [Indexed: 12/19/2022] Open
Abstract
Background: Caesalpinia sappan L. (C. sappan) is a traditional Chinese medicinal plant. The dried heartwood of C. sappan (also known as Sappan wood) has been widely used for the folkloric medical treatment of ischemic cerebral stroke in China. However, the detailed underlying pharmacological mechanism still remains largely unexplored. Methods: In this study, a middle cerebral artery occlusion (MCAO) rat model was employed to elucidate the mechanism of the anti-cerebral ischemic effects of C. sappan ethanolic extract (CEE). Moreover, systemic multi-target identification coupled with gene ontology biological process (GO BP) and reactome pathway analysis was used to investigate the potential neuroprotective mechanism. Furthermore, the presumed mechanism was confirmed through biological analysis by determining the effects of CEE on the identified signaling pathways in PC12 cells model-induced by oxygen-glucose deprivation/reperfusion (OGD/R). Results: Our study demonstrates that CEE (both through in vivo administration at a dosage of 300 mg/kg and through in vitro incubation at a dosage of 2.4 μg/mL) is a neuroprotective agent that can effectively inhibit neuronal damage, promote synaptic generation, and suppress the activation of neutrophils, microglia, and astrocytes. Moreover, the neuroprotective mechanism of CEE is mediated via regulating 150 potential target proteins, which are associated with 6 biological processes and 10 pathways, including JAK-STAT, HSP90 and DNA damage/telomere stress. Conclusion: CEE can exert neuroprotective effect through multi-target pharmacological mechanisms to prevent ischemia/reperfusion-induced cerebral injury.
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Affiliation(s)
- Yan-Jun Wan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Li Xu
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wen-Ting Song
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yu-Qi Liu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Li-Chao Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Ming-Bo Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Lian-Ying Liu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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21
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A Review of Antiplatelet Activity of Traditional Medicinal Herbs on Integrative Medicine Studies. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7125162. [PMID: 30719065 PMCID: PMC6335729 DOI: 10.1155/2019/7125162] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 11/27/2018] [Indexed: 12/13/2022]
Abstract
Thrombotic events mainly occurred by platelet activation and aggregation. The vascular occlusion causes serious disease states such as unstable angina, ischemic stroke, and heart attack. Due to the pervading of thrombotic diseases, new antiplatelet drugs are necessary for preventing and treating arterial thrombosis without adverse side effects. Traditional medicinal herbs have been used for the treatment of human ailments for a long time. The clinically useful and safe products from traditional medicinal herbs were identified and developed in numerous pharmacological approaches. A complementary system of traditional medicinal herbs is a good candidate for pharmacotherapy. However, it still has a limitation in its function and efficacy. Thus, it is necessary to study the mode of action of traditional medicinal herbs as alternative therapeutic agents. In this review, we focused on our current understanding of the regulatory mechanisms of traditional medicinal herbs in antiplatelet activity and antithrombotic effect of traditional medicinal herbs on platelet function.
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22
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Xia Z, Li D, Li Q, Zhang Y, Kang W. Simultaneous determination of brazilin and protosappanin B in Caesalpinia sappan by ionic-liquid dispersive liquid-phase microextraction method combined with HPLC. Chem Cent J 2017; 11:114. [PMID: 29134292 PMCID: PMC5684053 DOI: 10.1186/s13065-017-0342-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 10/23/2017] [Indexed: 11/10/2022] Open
Abstract
The conditions of heating, ionic liquid-based ultrasonic-assisted extraction combined with reverse-phase high performance liquid chromatography were optimized to simultaneously isolate and determinate brazilin and protosappanin B in Caesalpinia sappan. Ionic liquids, including [BMIM]Br, [BMIM]BF4, [BMIM]PF6 and [HMIM]PF6, were selected as extraction solvents while methanol, acetone, acetonitrile, ethanol and water were selected as dispersants. The chromatographic column was Purospher star RP-C18 (250 mm × 4.6 mm, 5 μm), a mixture of methanol and 0.2% phosphoric acid-water was used as mobile phase at a flow rate 0.65 mL/min. The result displayed that the extraction yields of brazilin and protosappanin B were highest when the concentration of [BMIM]Br methanol solution as extraction solvent was 0.5 mol/L and the solid-liquid ratio was 1:50 (g/mL). Under the optimal extraction conditions, the contents of brazilin showed a good linearity (r = 1.0000) within the range of 1.25-7.50 μg with the average recovery of 99.33%, the contents of protosappanin B also showed a good linearity (r = 0.9999) within the range of 0.50-3.00 μg with the average recovery of 98.31%. This experiment, which adopted environmentally friendly reagent as extraction solvent, not only improved the extraction efficiency, but also avoided the environmental pollution caused by organic solvent. Moreover, it was simple and reliable, and can be of important significance in the study of Traditional Chinese Medicine active ingredient extraction methods. The antibacterial activities of the ionic liquids and methanol extracts were determined using the paper disc diffusion method. The ionic liquid extract was found to possess antibacterial activity against Staphylococcus aureus and methicillin-resistant S. aureus (MIC value of 37.5 mg crude drug/mL), β-Lactamase producing S. aureus (MIC values of 18.8 mg crude drug/mL), but not against E. coli, Extended spectrum β-Lactamases E. coli and P. aeruginosa. Compared with the ionic liquid extract, the methanol extract was found to have antibacterial activity against S. aureus and methicillin-resistant S. aureus (MIC value of 75.0 mg crude drug/mL), β-Lactamase producing S. aureus (MIC values of 150.0 mg crude drug/mL). However, the same, the methanol extract did not have antibacterial activity against E. coli, Extended spectrum β-Lactamases E. coli and P. aeruginosa.
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Affiliation(s)
- Zhaoyang Xia
- Institute of Chinese Materia Medica, Henan University, Kaifeng, Henan, 475004, China
| | - Dongdong Li
- Institute of Chinese Materia Medica, Henan University, Kaifeng, Henan, 475004, China
| | - Qing Li
- Institute of Chinese Materia Medica, Henan University, Kaifeng, Henan, 475004, China
| | - Yan Zhang
- Hebei Food Inspection and Research Institute, Shijiazhuang, 050091, China.
| | - Wenyi Kang
- Institute of Chinese Materia Medica, Henan University, Kaifeng, Henan, 475004, China. .,Kaifeng Key Laboratory of Functional Components in Health Food, Kaifeng, Henan, 475004, China.
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23
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Yuan ZY, Lei F, Chai YS, Wu H, Zhao S, Wang YG, Feng TS, Li HY, Li HY, Zhan HL, Xing DM, DU LJ. Reproductive toxicity of brazilein in ICR mice. Chin J Nat Med 2017; 14:441-8. [PMID: 27473962 DOI: 10.1016/s1875-5364(16)30041-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Indexed: 11/27/2022]
Abstract
Brazilein is an active small molecular compound extracted from Caesalpinia sappan L. with favorable pharmacological properties on immune system, cardiovascular system, and nervous system. C. sappan has been used as a traditional medicine in China for hundreds of years for various diseases. However, the general reproductive toxicity of brazilein is still unknown. The purpose of the present study was to thoroughly evaluate the general reproductive toxicity of brazilein in ICR mice to support the future drug development and modernization of this potent traditional Chinese medicine. The results showed that, although no apparent toxicity on the reproducibility of the male was observed, brazilein might cause considerable risks to the fetuses and females as indicated by the ratios of dead fetuses and reabsorptions. In conclusion, our results from the present study provided some useful insights about the safety profile of brazilein, suggesting that brazilein should be used with caution in pregnant women.
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Affiliation(s)
- Zhi-Yi Yuan
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Fan Lei
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Yu-Shuang Chai
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hao Wu
- NGM Biopharmaceuticals, Inc., South San Francisco, CA 94080, United States
| | - Shuang Zhao
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Yu-Gang Wang
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Tian-Shi Feng
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hui-Ying Li
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hui-Yu Li
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hong-Lei Zhan
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Dong-Ming Xing
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China.
| | - Li-Jun DU
- MOE Key Laboratory of Protein Sciences, Laboratory of Molecular Pharmacology and Pharmaceutical Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China.
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24
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Mueller M, Weinmann D, Toegel S, Holzer W, Unger FM, Viernstein H. Compounds from Caesalpinia sappan with anti-inflammatory properties in macrophages and chondrocytes. Food Funct 2016; 7:1671-9. [DOI: 10.1039/c5fo01256b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The heartwood of Caesalpinia sappan is a traditional ingredient of food and beverages in South East Asia and has been used in traditional medicine as an analgesic and anti-inflammatory drug or to promote blood circulation.
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Affiliation(s)
- Monika Mueller
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Daniela Weinmann
- Karl Chiari Lab for Orthopaedic Biology
- Department of Orthopaedics
- Medical University of Vienna
- A-1090 Vienna
- Austria
| | - Stefan Toegel
- Karl Chiari Lab for Orthopaedic Biology
- Department of Orthopaedics
- Medical University of Vienna
- A-1090 Vienna
- Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry – Division of Drug Synthesis
- University of Vienna
- A-1090 Vienna
- Austria
| | - Frank M. Unger
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Helmut Viernstein
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
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Ren L, Yang X, Zhao L, Zhang H, Wang J. Evaluation of Su Fu'ning Lotion's Inhibitory Effects on Bladder Cancer Cells In Vitro and In Vivo by Intravesical Instillation. Integr Cancer Ther 2015; 15:80-6. [PMID: 26315609 DOI: 10.1177/1534735415596569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Bladder cancer is a common malignant tumor with a very high recurrence rate after surgery. Intravesical instillation can help clear up the residual tumor cells after surgery and thereby reduce the recurrence rate. OBJECTIVE To establish a bladder tumor transplantation animal model and to evaluate the inhibitory effects of a novel perfusate, Su Fu'ning Lotion (SFN), on bladder tumor. METHODS SFN was compared with several commonly used chemotherapy drugs, including mitomycin (MMC) and pirarubicin (THP) for anticancer effects on the bladder cancer cell lines T24, BTT, and BIU-87 and SFN half inhibitory concentrations (IC50) were determined after 48 hours of treatment. In addition, bladder cancer orthotopic transplantation tumor models were established in BALB/C nude mice and T739 mice, and SFN anticancer effects were assessed in vivo, with normal saline and MMC as negative and positive controls, respectively. RESULTS SFN, MMC, and THP were all lethal to bladder cancer cells, in vitro, with SFN and THP significantly superior to MMC. IC50 values for SFN were 13.22, 11.22, and 12.5 µg/mL on T24, BTT, and BIU-87 cells, respectively. In vivo, SFN significantly reduced the mouse bladder wet weight and prolonged the animal survival compared with controls (P < .05), suggesting that SFN significantly inhibited T24/BTT cell growth in mice. CONCLUSION SFN inhibited the bladder cancer cell proliferation in vitro and in vivo and significantly prolonged the survival of mice with bladder cancer xenografts, indicating that SFN could be used as a perfusate after surgery for removal of residual bladder cancers cells.
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Affiliation(s)
| | - Xihua Yang
- Shanxi Medical University, Taiyuan, China
| | - Lili Zhao
- Shanxi Medical University, Taiyuan, China
| | - Hong Zhang
- Shanxi Institute for Food and Drug Control, Taiyuan, China
| | - Jing Wang
- Shanxi Medical University, Taiyuan, China
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Nirmal NP, Rajput MS, Prasad RGSV, Ahmad M. Brazilin from Caesalpinia sappan heartwood and its pharmacological activities: A review. ASIAN PAC J TROP MED 2015. [PMID: 26194825 DOI: 10.1016/j.apjtm.2015.05.014] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Caesalpinia sappan L. (CS) is a plant of Leguminosae family, commonly known as Brazil or Sappan wood. CS is distributed in Southeast Asia and its dried heartwood has been used as traditional ingredient of food or beverages and has a wide variety of medicinal properties. Higher extraction yield of CS wood was achieved with 95% ethanol for 2 h. Chemical constituent's investigation of sappan wood resulted in the isolation of various structural types of phenolic components including one xanthone, one coumarin, three chalcones, two flavones three homoisoflavonoids and brazilin. Brazilin [(6a S-cis)-7, 11b-dihydrobenz[b]indeno[1,2-d]pyran-3,6a,9,10(6H)- tetrol], a major and active compound found in CS heartwood. Most of the folkloric uses of brazilin were validated by the scientific studies such as antioxidant, antibacterial, anti-inflammatory, anti-photoaging, hypoglycemic, vasorelaxant, hepatoprotective and anti-acne activity. CS heartwood extract is safe and did not produce any acute or subacute toxicity in both male and female rats. Brazilin is the safe natural compound having potential to develop as a medicinal compound with application in food, beverage, cosmetics and pharmaceutical industries to screen its clinical use in modern medicine. The information gained could provide the important and potential approach for pharmaceutical researcher to implicate the knowledge of brazilin in the formulation of new drug and to reveal therapeutic and gaps requiring future research opportunities. More studies are needed to evaluate the potential application of brazilin as preservative and coloring agent in food processing industries.
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Affiliation(s)
- Nilesh P Nirmal
- Center for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Health and Food Sciences Precinct, Block 10, 39 Kessels Road, Coopers Plains, Acherfield Brisbane, QLD 4108, Australia.
| | - Mithun S Rajput
- Department of Medical Biochemistry, MGM Medical College, A.B. Road, Indore 452001, MP, India
| | - Rangabhatla G S V Prasad
- Biomedical and Pharmaceutical Technology Research Group, Nano Research for Advanced Materials, Bangalore 5600040, Karnataka, India
| | - Mehraj Ahmad
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Rd., Salaya, Nakhon Pathom 73170, Thailand
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Zuo GY, Han ZQ, Han J, Hao XY, Tang HS, Wang GC. Antimicrobial activity and synergy of antibiotics with two biphenyl compounds, protosappanins A and B from Sappan Lignum against methicillin-resistant Staphylococcus aureus strains. ACTA ACUST UNITED AC 2015; 67:1439-47. [PMID: 25920539 DOI: 10.1111/jphp.12433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 03/29/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVES This study aims to investigate antimicrobial ingredients from Sappan Lignum and to evaluate their synergy on methicillin-resistant Staphylococcus aureus strains with antibiotics. METHODS Bioactivity-guided phytochemical procedures were used to screen the active compounds. Minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) were assayed by broth microdilution. The synergy was evaluated through checkerboard microdilution and loss of viability assays. KEY FINDINGS Protosappanins A (PsA) and B (PsB) were identified from Sappan Lignum extracts. They showed active against both S. aureus and MRSA with MIC or MIC50 at 64 (PsA) and 128 (PsB) mg/L alone. When they were used in combination with antibiotics, they showed best synergy with amikacin and gentamicin with MIC50 (mg/L) of amikacin reduced more significantly from 32 to four (with PsA) and eight (with PsB), and the fractional inhibitory concentration index (FICI) ranged between 0.078 and 0.500 (FICI50 = 0.375). Moreover, the resistance of MRSA towards amikacin and gentamicin could be reversed by the Clinical and Laboratory Standards Institute criteria. The combined bactericidal mode could as well be synergy. PsA and PsB showed very low cytotoxicity in comparison with their promising activity against MRSA. CONCLUSIONS Protosappanins A and B showed both alone activities and resistance reversal effects of amikacin and gentamicin against MRSA, which warrant further investigations for potential combinatory therapy of MRSA infection.
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Affiliation(s)
- Guo-Ying Zuo
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming, China
| | - Zong-Qi Han
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming, China.,School of Pharmacy, Guiyang Medical University, Guiyang, China.,Department of Basic, Xingtai Medical College, Xingtai, China
| | - Jun Han
- School of Basic Medical Sciences, Yunnan Traditional Chinese Medical College, Kunming, China
| | - Xiao-Yan Hao
- School of Pharmacy, Guiyang Medical University, Guiyang, China
| | - Hua-Shu Tang
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming, China
| | - Gen-Chun Wang
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming, China
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Jung EG, Han KI, Hwang SG, Kwon HJ, Patnaik BB, Kim YH, Han MD. Brazilin isolated from Caesalpinia sappan L. inhibits rheumatoid arthritis activity in a type-II collagen induced arthritis mouse model. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:124. [PMID: 25896410 PMCID: PMC4410491 DOI: 10.1186/s12906-015-0648-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 04/13/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Caesalpinia sappan L. extracts exhibit great therapeutic potential, and have been shown to have analgesic and anti-inflammatory properties. This study aimed to understand the anti-rheumatoid activity of brazilin that was isolated from ethyl acetate extract of C. sappan L. The evaluations were conducted in mice with type-II collagen-induced arthritis (CIA). METHODS Brazilin was purified via preparative HPLC and identified by mass spectrometry and 1H/13C NMR analysis. DBA/1J mice were divided into four groups (n=10). Three groups of mice received intradermal injections of inducer bovine type-II collagen (BTIIC; 2 mg/ml in 0.05 ml acetic acid) and 0.1 ml of booster complete Freund's adjuvant (CFA). A second injection of BTIIC with booster incomplete Freund's adjuvant (ICFA) was given subsequently after 21 days. On 22nd day, purified brazilin (10 mg/kg body weight) or the disease-modifying anti-rheumatic drug methotrexate (3 mg/kg body weight) was administered intraperitoneally daily or every three days for 21 days, respectively to two groups of mice. At the 42nd day, mice sera were collected, and the levels of pro-inflammatory cytokines and stress enzyme markers in serum were measured using standard immunoassay methods. The microstructure and morphometric analyses of the bones were assessed using high-resolution microfocal computed tomography. RESULTS Brazilin isolated from C. sappan reduced the arthritis index score and the extent of acute inflammatory paw edema in CIA-mice. The bone mineral density was significantly (p<0.05) lower in only-CIA mice, and appeared to increase commensurate with methotrexate and brazilin administration. Brazilin prevented joint destruction, surface erosion, and enhanced bone formation as revealed by microstructural examinations. Brazilin markedly attenuated mouse CIA and reduced the serum levels of inflammatory cytokines including TNF-α, IL-1β, and IL-6. CONCLUSIONS Brazilin purified from C. sappan L. shows protective efficacy in CIA mouse, and may be useful to treat chronic inflammatory disorders including rheumatoid arthritis.
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Affiliation(s)
- Eui-Gil Jung
- Department of Life Science and Biotechnology, Soonchunhyang University, Asan, Chungnam, 336-745, Republic of Korea.
| | - Kook-Il Han
- Department of Life Science and Biotechnology, Soonchunhyang University, Asan, Chungnam, 336-745, Republic of Korea.
| | - Seon Gu Hwang
- Department of Life Science and Biotechnology, Soonchunhyang University, Asan, Chungnam, 336-745, Republic of Korea.
| | - Hyun-Jung Kwon
- Department of Dental hygiene, Gimcheon University, 214 Daehakro, Gimcheon City Gyungbuk, 740-704, Korea.
| | - Bharat Bhusan Patnaik
- Division of Plant Biotechnology, College of Agriculture and Life Science, Chonnam National University, Gwangju, 500-757, Republic of Korea.
- School of Biotechnology, Trident Academy of Creative Technology (TACT), Bhubaneswar, 751007, Odisha, India.
| | - Yong Hyun Kim
- Department of Life Science and Biotechnology, Soonchunhyang University, Asan, Chungnam, 336-745, Republic of Korea.
| | - Man-Deuk Han
- Department of Life Science and Biotechnology, Soonchunhyang University, Asan, Chungnam, 336-745, Republic of Korea.
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Dapson R, Bain C. Brazilwood, sappanwood, brazilin and the red dye brazilein: from textile dyeing and folk medicine to biological staining and musical instruments. Biotech Histochem 2015; 90:401-23. [DOI: 10.3109/10520295.2015.1021381] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nirmal NP, Panichayupakaranant P. Antioxidant, antibacterial, and anti-inflammatory activities of standardized brazilin-richCaesalpinia sappanextract. PHARMACEUTICAL BIOLOGY 2015; 53:1339-43. [PMID: 25864864 DOI: 10.3109/13880209.2014.982295] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nilesh Prakash Nirmal
- Excellent Research Laboratory, Phytomedicine and Pharmaceutical Biotechnology Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla Univesity, Hat-Yai, Songkhla , Thailand
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Yadav JS, Mishra AK, Das S. Formal synthesis of (±)-brazilin and total synthesis of (±)-brazilane. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Javed U, Karim M, Jahng KC, Park JG, Jahng Y. Enantioselective syntheses of (+)- and (−)-brazilin. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nirmal NP, Panichayupakaranant P. Anti-Propionibacterium acnesassay-guided purification of brazilin and preparation of brazilin rich extract fromCaesalpinia sappanheartwood. PHARMACEUTICAL BIOLOGY 2014; 52:1204-7. [PMID: 24963948 DOI: 10.3109/13880209.2014.884607] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Zuo GY, Han ZQ, Hao XY, Han J, Li ZS, Wang GC. Synergy of aminoglycoside antibiotics by 3-Benzylchroman derivatives from the Chinese drug Caesalpinia sappan against clinical methicillin-resistant Staphylococcus aureus (MRSA). PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:936-941. [PMID: 24703330 DOI: 10.1016/j.phymed.2014.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/11/2013] [Accepted: 03/02/2014] [Indexed: 06/03/2023]
Abstract
The in vitro antimicrobial activities of three 3-Benzylchroman derivatives, i.e. Brazilin (1), Brazilein (2) and Sappanone B (3) from Caesalpinia sappan L. (Leguminosae) were assayed, which mainly dealt with synergistic evaluation of aminoglycoside and other type of antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) by the three compounds through the Chequerboard and Time-kill curve methods. The results showed that Compounds 1-3 alone exhibited moderate to weak activity against methicillin-susceptible S. aureus (MSSA) and other standard strains by MICs/MBCs ranged from 32/64 to >1024/>1024 μg/ml, with the order of activity as 1>2>3. Chequerboard method showed significant anti-MRSA synergy of 1/Aminoglycosides (Gentamicin, Amikacin, Etimicin and Streptomycin) combinations with (FICIs)50 at 0.375-0.5. The combined (MICs)50 values (μg/ml) reduced from 32-128/16-64 to 4-8/4-16, respectively. The percent of reduction by MICs ranged from 50% to 87.5%, with a maximum of 93.8% (1/16 of the alone MIC). Combinations of 2 and 3 with Aminoglycosides and the other antibiotics showed less potency of synergy. The dynamic Time-killing experiment further demonstrated that the combinations of 1/aminoglycoside were synergistically bactericidal against MRSA. The anti-MRSA synergy results of the bacteriostatic (Chequerboard method) and bactericidal (time-kill method) efficiencies of 1/Aminoglycoside combinations was in good consistency, which made the resistance reversed by CLSI guidelines. We concluded that the 3-Benzylchroman derivative Brazilin (1) showed in vitro synergy of bactericidal activities against MRSA when combined with Aminoglycosides, which might be beneficial for combinatory therapy of MRSA infection.
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Affiliation(s)
- G Y Zuo
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming 650032, China.
| | - Z Q Han
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming 650032, China; School of Pharmacy, Guiyang Medical University, Guiyang 550004, China
| | - X Y Hao
- School of Pharmacy, Guiyang Medical University, Guiyang 550004, China
| | - J Han
- School of Basic Medical Sciences, Yunnan Traditional Chinese Medical College, Kunming 650500, China
| | - Z S Li
- Kunming Institute of Virology of Chengdu Military Command, Kunming 650032, China
| | - G C Wang
- Research Center for Natural Medicines, Kunming General Hospital of Chengdu Military Command, Kunming 650032, China
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Long G, Lin B, Wang L, Wu L, Yin T, Yu D, Wang G. Sappan Lignum Extract Inhibits Restenosis in the Injured Artery through the Deactivation of Nuclear Factor-κB. AIMS BIOENGINEERING 2014. [DOI: 10.3934/bioeng.2014.1.25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Yan-yan J, Yan L, Ying S, Jinyi Z, Fang D, Yuan S, Ai-dong W. A simple high-performance liquid chromatographic method for the determination of brazilin and its application to a pharmacokinetic study in rats. JOURNAL OF ETHNOPHARMACOLOGY 2013; 151:108-13. [PMID: 24095700 DOI: 10.1016/j.jep.2013.08.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/19/2013] [Accepted: 08/29/2013] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Caesalpinia sappan is a medicinal plant native to China popularly used to treat chronic pelvic inflammation, dysmenorrhea and hysteromyoma. Its main bioactive component is brazilin which had presented antibacterial, anti-inflammatory and anti-platelet aggregation activities. To establish a sensitive, selective, reproducible, and accurate high performance liquid chromatographic (HPLC) method for the quantitative determination of brazilin in plasma, and study the pharmacokinetics of brazilin in rats after intravenous administration of brazilin. MATERIALS AND METHODS Rats received intravenous injection of 25, 50 and 100mg/kg of brazilin. Concentrations of brazilin in plasma were determined by HPLC method at different time points and all pharmacokinetic parameters were estimated by non-compartmental analysis with WinNonLin 6.2 software. RESULTS After single intravenous doses of 25, 50 and 100mg/kg brazilin in rats, the main PK parameters were as follows: Cmax were 18.1 ± 4.1, 46.7 ± 8.7 and 82.2 ± 9.6 µg/mL; AUC0-24 were 20.4 ± 4.3, 48.7 ± 6.8 and 90.4 ± 10.3 µgh/mL; and t1/2 were 5.4 ± 1.5, 5.8 ± 0.9 and 6.2 ± 1.2h, respectively. CONCLUSION It showed that the brazilin was eliminated moderately in rat by intravenous injection route with t1/2 of 6h and showed a dose-dependence profile of Cmax and AUC0-24 at the doses of 25~100mg/kg of brazilin for injection in rats.
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Affiliation(s)
- Jia Yan-yan
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China.
| | - Li Yan
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China
| | - Song Ying
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China
| | - Zhao Jinyi
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China
| | - Dou Fang
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China
| | - Sun Yuan
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China
| | - Wen Ai-dong
- Department of Pharmacy, First Affiliated Hospital of the Fourth Military Medical University, Changle West Street 127, Xi'an, Shaanxi 710032, China.
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Tong XZ, Zhu H, Shi Y, Xu HT, Wang B, Zhao JH. An LC/MS/MS method for simultaneous quantitation of two homoisoflavones: protosappanin B and brazilin with hypoglycemic activity in rat plasma and its application to a comparative pharmacokinetic study in normal and streptozotocin-treated rats. JOURNAL OF ETHNOPHARMACOLOGY 2013; 148:682-690. [PMID: 23707335 DOI: 10.1016/j.jep.2013.05.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 05/07/2013] [Accepted: 05/15/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The heartwood of Caesalpinia sappan L. (Leguminosae), a widely used Chinese medicine in folk, has been used for the treatment of traumatic injury, stasis pain, amenorrhea, dysmenorrheal, as well as stabbing pain in the chest, abdomen and so on. Protosappanin B and brazilin, as the major bioactive homoisoflavones of Sappan Lignum, are used as the marker components for the quality control of the herb in China Pharmacopoeia. AIM OF THE STUDY To establish a sensitive LC/MS/MS method for investigating the pharmacokinetic properties of protosappanin B and brazilin in rats after oral administration of Sappan Lignum extract, and compare their pharmacokinetics difference between normal and streptozotocin-treated rats. MATERIAL AND METHODS A rapid, selective and sensitive LC/MS/MS method was developed and validated for the simultaneous quantification of protosappanin B and brazilin in rat plasma. Normal and streptozotocin-treated rats were orally administered with the Sappan Lignum extract at the same dose of 2.83 g extract/kg body weight (equivalent to 35.56 mg/kg of protosappanin B and 52.25 mg/kg of brazilin), respectively. RESULTS After oral administration of Sappan Lignum extract, a remarkable increase (p<0.05) in the value of AUC0-24h, AUC0-∞, Cmax and T1/2 associated with protosappanin B and brazilin was observed in the streptozotocin-treated group. Compared with the normal rats, elimination of both compounds in the streptozotocin-treated rats was slower. CONCLUSION The established method was successfully applied to compare the pharmacokinetic behaviors of protosappanin B and brazilin in rat plasma after oral administration of Sappan Lignum extract between normal and streptozotocin-treated groups; the results might suggest the accumulation of both compounds in diabetic pathologic states and the adverse reaction should be considered when it was used.
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Affiliation(s)
- Xiao-Zhe Tong
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Liaoning Medical University, Jinzhou 121000, China.
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Antimicrobial assay optimization and validation for HTS in 384-well format using a bioluminescent E. coli K-12 strain. Eur J Pharm Sci 2013; 49:782-9. [DOI: 10.1016/j.ejps.2013.05.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 05/24/2013] [Accepted: 05/27/2013] [Indexed: 12/22/2022]
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Wang X, Zhang H, Yang X, Zhao J, Pan C. Enantioselective total synthesis of (+)-brazilin, (−)-brazilein and (+)-brazilide A. Chem Commun (Camb) 2013; 49:5405-7. [DOI: 10.1039/c3cc42385a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Srinivasan R, selvam GG, Karthik S, Mathivanan K, Baskaran R, Karthikeyan M, Gopi M, Govindasamy C. In vitro antimicrobial activity of Caesalpinia sappan L. Asian Pac J Trop Biomed 2012. [DOI: 10.1016/s2221-1691(12)60144-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Wu SQ, Otero M, Unger FM, Goldring MB, Phrutivorapongkul A, Chiari C, Kolb A, Viernstein H, Toegel S. Anti-inflammatory activity of an ethanolic Caesalpinia sappan extract in human chondrocytes and macrophages. JOURNAL OF ETHNOPHARMACOLOGY 2011; 138:364-372. [PMID: 21963554 PMCID: PMC3282169 DOI: 10.1016/j.jep.2011.09.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 07/25/2011] [Accepted: 09/14/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Caesalpinia sappan is a common remedy in Traditional Chinese Medicine and possesses diverse biological activities including anti-inflammatory properties. Osteoarthritis (OA) is a degenerative joint disease with an inflammatory component that drives the degradation of cartilage extracellular matrix. In order to provide a scientific basis for the applicability of Caesalpinia sappan in arthritic diseases, the present study aimed to assess the effects of an ethanolic Caesalpinia sappan extract (CSE) on human chondrocytes and macrophages. MATERIALS AND METHODS Primary human chondrocytes were isolated from cartilage specimens of OA patients. Primary cells, SW1353 chondrocytes and THP-1 macrophages were serum-starved and pretreated with different concentrations of CSE prior to stimulation with 10 ng/ml of interleukin-1beta (IL-1β) or lipopolysaccharide (LPS). Following viability tests, nitric oxide (NO) and tumor necrosis factor-alpha (TNF-α) were evaluated by Griess assay and ELISA, respectively. Using validated real-time PCR assays, mRNA levels of IL-1β, TNF-α, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2) were quantified. SW1353 cells were cotransfected with a COX-2 luciferase reporter plasmid and nuclear factor-kappa-B (NF-κB) p50 and p65 expression vectors in the presence or absence of CSE. RESULTS CSE dose-dependently inhibited the expression of pro-inflammatory cytokines IL-1β and TNF-α in IL-1β-stimulated chondrocytes and LPS-stimulated THP-1 macrophages. CSE further suppressed the synthesis of NO in primary OA chondrocytes by blocking iNOS mRNA expression. The inhibition of COX-2 transcription was found to be related with the CSE inhibition of the p65/p50-driven transactivation of the COX-2 promoter. CONCLUSIONS The present report is first to demonstrate the anti-inflammatory activity of CSE in an in vitro cell model of joint inflammation. CSE can effectively abrogate the IL-1β-induced over-expression of inflammatory mediators at the transcriptional level in human chondrocytes and macrophages, most likely by inhibiting NF-κB (p65/p50) signaling. Blockade of IL-1β-induced NF-κB signaling and its downstream pro-inflammatory targets by CSE may be beneficial for reducing cartilage breakdown in arthritis.
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Affiliation(s)
- Shengqian Q Wu
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, 1090 Vienna, Austria
- Department of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
| | - Miguel Otero
- Laboratory of Cartilage Biology, Research Division, Hospital for Special Surgery, Weill Cornell Medical College, New York, USA
| | - Frank M Unger
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, 1090 Vienna, Austria
| | - Mary B Goldring
- Laboratory of Cartilage Biology, Research Division, Hospital for Special Surgery, Weill Cornell Medical College, New York, USA
| | - Ampai Phrutivorapongkul
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Catharina Chiari
- Department of Orthopedics, Medical University Vienna, 1090 Vienna, Austria
| | - Alexander Kolb
- Department of Orthopedics, Medical University Vienna, 1090 Vienna, Austria
| | - Helmut Viernstein
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, 1090 Vienna, Austria
| | - Stefan Toegel
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, 1090 Vienna, Austria
- Laboratory of Cartilage Biology, Research Division, Hospital for Special Surgery, Weill Cornell Medical College, New York, USA
- Department of Orthopedics, Medical University Vienna, 1090 Vienna, Austria
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Wang YZ, Sun SQ, Zhou YB. Extract of the dried heartwood of Caesalpinia sappan L. attenuates collagen-induced arthritis. JOURNAL OF ETHNOPHARMACOLOGY 2011; 136:271-278. [PMID: 21557995 DOI: 10.1016/j.jep.2011.04.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 04/25/2011] [Accepted: 04/26/2011] [Indexed: 05/30/2023]
Abstract
AIM OF THIS STUDY To confirm the anti-arthritic effect and explore the potential mechanism of the dried heartwood of Caesalpinia sappan L. (HCS) on collagen-induced arthritis (CIA) in rats, an animal model of rheumatoid arthritis. MATERIALS AND METHODS CIA was induced in male Wistar rats by intradermal injection of bovine collagen-II in Freund's incomplete adjuvant (IFA). The rats in the onset of arthritis were treated daily with oral administration of an ethanol extract from HCS (EHCS) at different doses (1.2, 2.4 and 3.6g/kg) or olive oil-vehicle for 10 days. Paw swelling, arthritis index, radiographic and histopathologic changes were evaluated to confirm the anti-arthritic effect of EHCS on CIA in rats. Levels of proinflammatory cytokines interleukin-1 beta (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor alpha (TNF-α) as well as prostaglandin E2 (PGE2) in blood and expression of cyclooxygenase-2 (COX-2) and transcription factor NF-κB p65 in paw cartilage were detected to further study the molecular mechanism of the anti-arthritic effects of EHCS on CIA in rats. In addition, the adverse effects of EHCS on liver and kidney of rats were also evaluated. RESULTS The results showed that the EHCS markedly attenuated collagen-induced arthritis and reduced the levels of IL-1β, IL-6, TNF-α and PGE2 in serum and the expression of COX-2 and transcription factor NF-κB p65 in paw cartilage of CIA rats. EHCS (3.6g/kg) induced slight hepatotoxicity and body weight loss. CONCLUSION These results indicate that EHCS significantly attenuates CIA in rats by decreasing the levels of IL-1β, IL-6, TNF-α and PGE2 in serum and the expression of COX-2 and transcription factor NF-κB in paw cartilage.
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Affiliation(s)
- You-Zhi Wang
- Department of Pharmacy, Daqing Campus of Harbin Medical University, Daqing 163319, China
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Kim Y, So HS, Youn MJ, Kim HJ, Woo WH, Shin SH, Lee I, Moon BS, Cho KH, Park R. Anti-inflammatory effect of Sasim extracts in PHA-stimulated THP-1 and peripheral blood mononuclear cells from cerebral infarction patients. JOURNAL OF ETHNOPHARMACOLOGY 2007; 112:32-9. [PMID: 17349756 DOI: 10.1016/j.jep.2007.01.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2006] [Revised: 12/26/2006] [Accepted: 01/25/2007] [Indexed: 05/14/2023]
Abstract
Sasim, a prescription composed of seven herbal mixtures, has been widely used for the treatment of cerebral infarction as an oriental medicine in Korea. However, the mechanisms by which the formula affects on the production of pro-inflammatory cytokines in cerebral infarct patients remain unknown yet. The levels of secretory protein and mRNA of pro-inflammatory cytokines, including tumor necrosis factor (TNF)-alpha, interlukin (IL)-1beta, and IL-6, were significantly increased in both THP-1 differentiated macrophage-like cells (T/M) and peripheral blood mononuclear cells (PBMCs) from cerebral infarct patients at 24h after stimulation with phytohemagglutinin (PHA) (p<0.05). However, pretreatment of Sasim strongly suppressed the secretion of pro-inflammatory cytokines in PHA-stimulated T/M cells and PBMCs. Moreover, Sasim significantly suppressed the transcriptional levels of pro-inflammatory cytokines in PHA-stimulated THP-1/M cells. These data indicate that Sasim may be beneficial in the cessation of inflammatory processes of cerebral infarction through suppression on the production of pro-inflammatory cytokines via inhibition of mRNA expression.
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Affiliation(s)
- Yunha Kim
- Vestibulocochlear System Research Center and Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
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Antczak C, Shum D, Escobar S, Bassit B, Kim E, Seshan VE, Wu N, Yang G, Ouerfelli O, Li YM, Scheinberg DA, Djaballah H. High-throughput identification of inhibitors of human mitochondrial peptide deformylase. ACTA ACUST UNITED AC 2007; 12:521-35. [PMID: 17435169 PMCID: PMC2234356 DOI: 10.1177/1087057107300463] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The human mitochondrial peptide deformylase (HsPDF) provides a potential new target for broadly acting antiproliferative agents. To identify novel nonpeptidomimetic and nonhydroxamic acid-based inhibitors of HsPDF, the authors have developed a high-throughput screening (HTS) strategy using a fluorescence polarization (FP)-based binding assay as the primary assay for screening chemical libraries, followed by an enzymatic-based assay to confirm hits, prior to characterization of their antiproliferative activity against established tumor cell lines. The authors present the results and performance of the established strategy tested in a pilot screen of 2880 compounds and the identification of the 1st inhibitors. Two common scaffolds were identified within the hits. Furthermore, cytotoxicity studies revealed that most of the confirmed hits have antiproliferative activity. These findings demonstrate that the designed strategy can identify novel functional inhibitors and provide a powerful alternative to the use of functional assays in HTS and support the hypothesis that HsPDF inhibitors may constitute a new class of antiproliferative agent.
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Affiliation(s)
- Christophe Antczak
- High Throughput Screening Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA
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Ye M, Xie WD, Lei F, Meng Z, Zhao YN, Su H, Du LJ. Brazilein, an important immunosuppressive component from Caesalpinia sappan L. Int Immunopharmacol 2006; 6:426-32. [PMID: 16428078 DOI: 10.1016/j.intimp.2005.09.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2005] [Revised: 04/29/2005] [Accepted: 09/12/2005] [Indexed: 11/21/2022]
Abstract
Caesalpinia sappan has been shown to have interesting immunosuppressive properties. Its heartwood has long been used in Chinese medicines for treating a variety of immune-mediated pathology and inflammatory disease. The purpose of this work was to evaluate the immunocompetence effects of brazilein on mice lymphocytes in vitro and in vivo. The results showed that brazilein and Caesalpinia sappan ethanol extract (SME) could distinctly inhibit the proliferation of T lymphocyte stimulated by Concanavalin A (Con A) and the proliferation of B lymphocyte stimulated by lipopolysaccharides (LPS), and brazilein could suppress mice humoral immune response by plaque forming cell (PFC) test. In addition, immune organs (thymus and spleen) in mice treated with brazilein were notably atrophied and weight loss in vivo (intraperitoneal injection, i.p.). In attempting to investigate the mechanisms of the immunosuppressive activity of brazilein, we discovered that brazilein can induce apoptosis in mice spleen lymphocytes by flow cytometry analysis and DNA fragmentation assay, which may be one of the pathways that brazilein inhibited immunocompetence of mice lymphocytes.
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Affiliation(s)
- Min Ye
- Laboratory of Pharmaceutical Sciences, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China
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